tag:blogger.com,1999:blog-16841350226389538902024-03-13T22:38:01.065-07:00Hotfoil-EHS Industrial Heating, Welding, and Heat Treating BlogA blog that provides educational information on electric heating systems used on hoppers, chutes, tanks and vessels; electric heating systems used for pre and post weld heat treating; heat treating power consoles; custom heat treating furnaces; and single & multi-operator welders. For more information, visit <a href="http://www.hotfoilehs.com"><strong>HotfoilEHS.com</strong></a>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comBlogger159125tag:blogger.com,1999:blog-1684135022638953890.post-27110068650929094922023-10-12T09:18:00.005-07:002023-10-12T09:19:48.961-07:00The Role of Heat Treatment Power Consoles in Welding<div class="separator" style="clear: both; text-align: center;"><a href="https://hotfoilehs.com/article_82_EHS.cfm" style="margin-left: 1em; margin-right: 1em;"><img alt="The Role of Heat Treatment Power Consoles in Welding" border="0" data-original-height="630" data-original-width="1200" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUaoCNG-3QRIMn2spXAl2b3Isj2RPPyzki3L3a_6mSM7D2T2cvgL4WFYQ_Wut4o-YpfECdXXGRdkIhPs1VTFoHVweOhAbCuRaOJQ_fgkMSi4puGAQMYjYeeJ0vnkekw0k19tBnb0Wvesj2FCO4nYdpS1pRjehr711oo4ZuH9M5zEH2AqG5ZZ6PQwuMEm8/w640-h336/Hotfoil-EHS-Power-Consoles.png" title="The Role of Heat Treatment Power Consoles in Welding" width="640" /></a></div><div><br /></div><div><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">In metal fabrication and construction, welding is a pivotal process that ensures the robustness and durability of metal structures. It's more than just joining metals; it's about ensuring the joint can withstand stress and last long. This is where the role of heat treatment becomes indispensable. Heat treatment power consoles are paramount among the various tools used for this purpose.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><h3 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">What is a <a href="https://hotfoilehs.com/article_82_EHS.cfm">Heat Treatment Power Console</a>?</span></h3><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Like those in the provided image, heat treatment power consoles are devices designed to control heat application to metals during post-weld heat treatment (PWHT). They come with a range of switches, dials, and connectors that allow operators to set specific temperatures, monitor heat levels, and control the duration of the treatment.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><h3 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Why is Heat Treatment Necessary?</span></h3><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">After welding, metals often undergo structural changes at their molecular level. These changes can lead to internal stresses, reduced ductility, and increased brittleness. Heat treatment, therefore, becomes essential to:</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><ul style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: disc; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Relieve internal stresses.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: disc; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Improve mechanical properties like tensile strength and ductility.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: disc; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Reduce the risk of corrosion.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: disc; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Enhance the overall lifespan of the weld.</span></li></ul><br /><h3 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">The Significance of Power Consoles</span></h3><br /><ol style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Precision Control</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: With a power console, operators can precisely control the temperature to which the metal is exposed, ensuring that the metal undergoes optimal heat treatment, neither too much nor too little.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Uniform Heating</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: These consoles provide consistent and uniform heating across the welded area, which is crucial as uneven heating can lead to new stresses or distortions.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Safety</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: High-quality consoles come with safety features like overheat protection and alarms, ensuring the safety of the equipment and the operator.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Documentation & Monitoring</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: Modern power consoles may offer features like data logging, allowing operators to monitor the heat treatment process closely and maintain records for quality assurance.</span></li></ol><br /><h3 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Impact on Metal Fabrication & Construction</span></h3><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">In industries like metal fabrication and construction, where the integrity of welds is critical, heat treatment power consoles play a defining role.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><ul style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: disc; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">They ensure that large structures like bridges, skyscrapers, and pipelines remain durable and safe.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: disc; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">In the automotive and aerospace industries, where the precision of welds is crucial, these consoles guarantee that parts can withstand intense pressures and stresses.</span></li></ul><br /><h3 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Conclusion</span></h3><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Welding, though a fundamental process, comes with its set of challenges. The post-weld molecular changes in metals can compromise the quality of the weld. However, these challenges are effectively addressed with tools like heat treatment power consoles. By ensuring the robustness of welds, these consoles contribute significantly to the longevity and safety of metal structures in various industries. The next time you witness a magnificent metal structure, remember the unsung hero behind it - the heat treatment power console.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p>Hotfoil-EHS<br /><a href="https://hotfoilehs.com/">https://hotfoilehs.com</a><br /><br /><br />609-588-0900</div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-49099884700363686792023-08-17T04:54:00.002-07:002023-08-17T04:55:31.705-07:00Understanding the Importance of Ceramic Mat Heaters in Pre-Weld Heating Applications<div class="separator" style="clear: both; text-align: center;"><a href="https://hotfoilehs.com/article_44_Ceramic-Mat-Heaters-Rope-Heaters-4-Banks-and-Accessories.cfm" style="margin-left: 1em; margin-right: 1em;"><img alt="Understanding the Importance of Ceramic Mat Heaters in Pre-Weld Heating Applications" border="0" data-original-height="630" data-original-width="1200" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCrtzaCN17Akxdw-Pdv6UFtkyW2yFZwficnoUYtYUeLad3CW_APP5IhMzyJ7aqErSngK1XkM9RkUs0CF4UoC0Vn9prHf0CTvmdsh2hvbJOPohUPSm8lpguEpn8oKy4rfjc8yltxeKZnlB8yN69lJZPuwfmsxSkbQjwWP5s3MIWv1ZM_3FmgluqYoDj4sM/w640-h336/Hotfoil-EHS-Ceramic-Mat-Heaters.jpeg" title="Understanding the Importance of Ceramic Mat Heaters in Pre-Weld Heating Applications" width="640" /></a></div><div><br /></div><div><div><a href="https://hotfoilehs.com/article_44_Ceramic-Mat-Heaters-Rope-Heaters-4-Banks-and-Accessories.cfm">Ceramic mat heaters</a>, also known as ceramic pad heaters, play a crucial role in pre-weld heating applications. They provide controlled, uniform heating to prevent thermal stresses and ensure proper metallurgical bonding during welding. The construction and application of these heaters in pre-weld heating involve several steps.</div><div><br /></div><div><b>Material Selection</b>: Manufacturers use high-quality ceramic materials for these heaters due to their excellent thermal insulation properties. The ceramic insulates the heating wire, preventing heat loss and ensuring uniform heat distribution.</div><div><br /></div><div><b>Heating Element</b>: The core component of a ceramic mat heater is the heating element, typically made of nichrome wire. Due to its high electrical resistance, this wire generates heat when electrical current flows through it.</div><div><br /></div><div><b>Ceramic Beads</b>: The nichrome wire gets threaded through ceramic beads, essential for insulation. These beads have a hollow cylindrical shape with an opening for the wire. Manufacturers arrange these beads in a pattern, often alternating rows, to form the heater's structure.</div><div><br /></div><div><b>Assembly</b>: After threading the nichrome wire through the ceramic beads, manufacturers shape the heater into a flexible mat-like structure, which can conform to the surface it needs to heat. The ceramic beads serve as spacers between adjacent turns of the wire, preventing short circuits and ensuring uniform heat distribution.</div><div><br /></div><div><b>Electrical Connections</b>: Manufacturers attach electrical leads to the heating element, enabling connection to a power source. These leads can be customized depending on the application, such as the voltage required and the type of power source available.</div><div><br /></div><div><b>Outer Insulation</b>: An outer insulating layer, typically made of fiberglass or silicone rubber, is added to the heater mat. This layer enhances the insulation properties, provides protection against environmental factors, and prevents electrical shocks.</div><div><br /></div><div>In pre-weld heating applications, these ceramic mat heaters ensure uniform heating and minimize thermal stresses in the welded material.</div><div><br /></div><div><b>Placement</b>: The operator places the ceramic mat heater onto the workpiece that requires pre-weld heating. The heater's flexibility allows it to adapt to curved surfaces, ensuring good contact with the workpiece.</div><div><br /></div><div><b>Power Source</b>: The operator connects the heater to a power source, usually a welding machine or a dedicated power supply unit. The power source provides the necessary electrical current to the nichrome wire in the heater, generating heat.</div><div><br /></div><div><b>Temperature Control</b>: The operator sets the desired temperature and heating rate for the pre-weld heating process using a temperature controller. The controller regulates the current flowing through the heater, ensuring uniform temperature distribution and preventing overheating.</div><div><br /></div><div><b>Monitoring</b>: The operator monitors the temperature throughout the pre-weld heating process, ensuring the workpiece reaches the desired temperature uniformly. Proper temperature control is vital to achieve optimal welding conditions and prevent issues like cold cracking or porosity in the weld.</div><div><br /></div><div><b>Removal</b>: Once the workpiece reaches the desired temperature, the operator disconnects the ceramic mat heater from the power source and removes it from the workpiece, ensuring the surface is clean and ready for welding.</div><div><br /></div><div>By following these steps, ceramic mat heaters provide consistent, controlled heating for pre-weld applications, enhancing weld quality and reducing the risk of defects in the final product.</div></div><div><br /></div><div>Hotfoil-EHS</div><div><a href="https://hotfoilehs.com">https://hotfoilehs.com</a></div><div>609-588-0900</div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-54166958116404579112023-05-20T07:16:00.001-07:002023-05-20T07:16:06.853-07:00Thermocouple Attachment Units in Heat Treatment<div class="separator" style="clear: both; text-align: center;"><a href="https://hotfoilehs.com/section_44_Pinwelders-Thermocouple-Attachment-Units-and-Accessories.cfm" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Thermocouple Attachment Units in Heat Treatment" border="0" data-original-height="630" data-original-width="1200" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQYYUpvbUm3n5saLzuoddi7KaJzs1zG0M26xDY4LFvsxl8U51gKcsAknmJAeJZsamA6CB66hogq0NX29r0UZWkFnpNyzgFPZgUMwDr6wndMgGJDNiP6NKQcsjnsXBghoU-5m3ZcKcltLXZ31REs_FUqmtDpGNOx6ttVtbe2ERuviHG-UdyiKdVHPER/w640-h336/Hotfoil-Thermocouple-Attachment-Units-1.jpg" title="Thermocouple Attachment Units in Heat Treatment" width="640" /></a></div><div><br /></div><div><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Thermocouples play a crucial role in the heat treatment industry, particularly welding. A thermocouple is a type of sensor consisting of two different types of metal joined together at one end. When the joined end is heated or cooled, it creates a micro voltage correlated to the temperature.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">The <a href="https://hotfoilehs.com/section_44_Pinwelders-Thermocouple-Attachment-Units-and-Accessories.cfm">Thermocouple Attachment Unit (TAU)</a> is a crucial device used to construct and apply these thermocouples to the workpieces or target pieces that will be welded.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Construction of Thermocouples:</strong></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></strong></p><ol style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Preparation of Thermocouple Wire</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: The first step in constructing a thermocouple involves preparing the thermocouple wire. These wires are two different types of metal, with their choice depending on the temperature range and the environmental conditions of the process.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Joining the Wires</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: The two thermocouple wires connect at one end by twisting the two wires together and then applying heat, generally through a method such as welding or brazing.</span></li></ol><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Application of Thermocouples to Welding Target Pieces:</strong></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></strong></p><ol style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Location Selection</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: The thermocouples need to be attached strategically to effectively monitor the temperature of the workpiece during the welding process. These locations are generally where the thermal properties are most critical for the quality of the weld, such as the weld joint or near heat-affected zones.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Attachment</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: The TAU is then used to attach the thermocouple to the selected location on the workpiece. The attachment is typically done by welding the bead of the thermocouple to the workpiece. The TAU can often control this process to ensure a good connection without damaging the thermocouple.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><strong style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Connection to Measurement Device</strong><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">: After attachment, the other end of the thermocouple is connected to a temperature measurement device or system. This device measures the thermocouple's voltage and translates it into a temperature reading.</span></li></ol><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">During the welding process, the thermocouple provides real-time temperature data, helping to control the weld's heating and cooling rates, ensuring the weld reaches the appropriate temperatures without overheating or cooling too quickly, both of which can lead to weld defects. After the process, thermocouples can be removed or left in place, depending on the requirements.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Remember, the specific process can vary based on the type of TAU and the particular requirements of the welding operation. Always refer to the manufacturer's instructions when using a TAU.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><br /><a href="https://hotfoilehs.com/">https://hotfoilehs.com</a><br />609.588.0900</div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-74939658413750106212023-04-21T10:48:00.004-07:002023-04-21T10:48:46.095-07:00Hotfoil-EHS Power Consoles: Eurotherm Master Controller Set-up for PWHT Procedure<div style="text-align: center;"><iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/X3H-7H99unE" title="YouTube video player" width="560"></iframe></div><div><br /></div><div><h3 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">This video explains how to set up the Eurotherm Temperature Controller on a Hotfoil-EHS Power Console in a Primary/Secondary relationship.</span></h3><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><h4 style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt; text-align: left;">Understanding heating rate, soaking temperature, soaking time and cooling rate for PWHT (Post Weld Heat Treatment)</h4><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Post-weld heat treatment (PWHT) is a crucial step in the welding process, as it helps to mitigate the adverse effects of welding on the microstructure and mechanical properties of the welded components. The main objectives of PWHT are to reduce residual stresses, improve ductility, reduce the risk of stress corrosion cracking, and temper or soften the heat-affected zone (HAZ). The four key factors that influence the effectiveness of PWHT are heating rate, soaking temperature, soaking time, and cooling rate.</span></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;"><br /></span></p><ol style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Heating rate: The heating rate refers to the rate at which the temperature of the welded component increases to reach the desired soaking temperature. A controlled and uniform heating rate is essential to avoid the formation of undesirable temperature gradients within the material, which can lead to distortion and cracking. A slow, steady heating rate also ensures that the material undergoes sufficient thermal stress relief, reducing residual stresses and improving the mechanical properties.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Soaking temperature: The soaking temperature is the target temperature at which the material stays during the heat treatment. The selection of an appropriate soaking temperature is vital, as it determines the extent of stress relief, the softening of the HAZ, and the overall improvement of mechanical properties. The soaking temperature is carefully chosen based on the material's composition, prior heat treatment, and the desired outcomes of the PWHT. Too high a temperature may cause grain coarsening and reduce the material's strength, while too low a temperature may not provide adequate stress relief or soften.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Soaking time refers to the duration the material holds at the soaking temperature. The soaking time is critical for allowing sufficient time for the microstructural changes to occur, such as diffusion of hydrogen, precipitation of carbides, or tempering of martensite. Proper soaking time reduces residual stresses and improves ductility and the desired microstructural changes. Insufficient soaking time can lead to incomplete stress relief, while excessive soaking time may result in grain coarsening, which can adversely affect the material's mechanical properties.</span></li><li style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; list-style-type: decimal; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">Cooling rate: The cooling rate is the rate at which the temperature of the material reduces after the completion of the soaking phase. The cooling rate significantly influences the material's final microstructure and mechanical properties. Controlled and uniform cooling is essential to prevent thermal gradients that could cause distortion or cracking. Different cooling rates may be required depending on the material and the desired outcome. Faster cooling may achieve a harder, more robust microstructure, while slower cooling rates can produce a more ductile, softer material.</span></li></ol><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><br /></p><p style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #0e101a; margin-bottom: 0pt; margin-top: 0pt;"><span data-preserver-spaces="true" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; margin-bottom: 0pt; margin-top: 0pt;">In summary, the heating rate, soaking temperature, soaking time, and cooling rate are essential parameters requiring careful controlling during post-weld heat treatment. These factors determine the effectiveness of the heat treatment process in reducing residual stresses, improving ductility, reducing the risk of stress corrosion cracking, and achieving the desired microstructure and mechanical properties in the welded components.</span></p></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-29574040046229089312023-03-09T07:06:00.003-08:002023-03-09T07:07:34.733-08:00Welding Pre and Post Heat Treatment Power Consoles<div class="separator" style="clear: both; text-align: center;"><a href="https://hotfoilehs.com/article_82_EHS.cfm" style="margin-left: 1em; margin-right: 1em;"><img alt="Welding Pre and Post Heat Treatment Power Consoles" border="0" data-original-height="630" data-original-width="1200" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQo6afTjutT9IPUCzugGl3E7G7HrqCJoGHFELh5gTjhbUN6s81TNoBDoP21yU9jvTFewk7UPF6leflD-xt5M-z-tVCGNsbtkDvZBCBLVWX48Rhpl1RLfHZb5VWHNvok70xE87mPrSffQW6SSS-0UWcGHkm5YDGHndIyklDWP4Rk9MtRDOTQ9A7KuRM/w640-h336/Hotfoil-Power-Consoles-1.jpg" title="Welding Pre and Post Heat Treatment Power Consoles" width="640" /></a></div><div><br /></div><div><div><a href="https://hotfoilehs.com/article_82_EHS.cfm">Power consoles</a>, also known as control consoles or heat treatment controllers, play a critical role in the heat treatment process by controlling and monitoring the temperature and other parameters of the heating equipment. They typically include a temperature controller, over-temperature protection, and a programmable controller to ensure that the heat treatment process meets the specified parameters, such as temperature and time. They also provide data logging and communication capabilities for process monitoring and control.</div><div><br /></div><div><a href="https://hotfoilehs.com/article_82_EHS.cfm">Heat treatment power consoles</a> provide control over multiple zones. The number of zones a power console can control can vary depending on the design and capabilities of the specific power console. Some heat treatment power consoles may be able to manage one zone, while others may handle multiple zones. It is common to have four temperature zones under control for industrial heat treatment, but power consoles may even control up to 24 zones. These zones are typically used to control different workpiece sections and can be used to create specific temperature profiles for other parts of the process.</div><div><br /></div><div><b>Power consoles in heat treatment</b> typically control various heating systems, such as electric resistance, gas-fired, or induction heating. Electric resistance heating systems use electric heating elements, such as resistance wire, to heat the workpiece. Gas-fired heating systems use a combustion process to generate heat in the furnace. Induction heating systems use an electromagnetic field to generate heat within the target. The power console controls the current flow to the induction coils to develop the electromagnetic field and maintain the desired temperature within the target. In some cases, power consoles also contain cooling systems and atmosphere generators to achieve specific temperature profiles and atmospheres during heat treatment.</div></div><div><br /></div><div><a href="https://hotfoilehs.com/" style="color: #e53319; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 14.85px; text-decoration-line: none; text-size-adjust: auto;">https://hotfoilehs.com</a><span face="Arial, Tahoma, Helvetica, FreeSans, sans-serif" style="background-color: white; caret-color: rgb(51, 51, 51); color: #333333; font-size: 14.85px; text-size-adjust: auto;"></span><div style="caret-color: rgb(51, 51, 51); color: #333333; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 14.85px; text-size-adjust: auto;"><b>609.588.0900</b></div></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-87018395149088421512023-01-12T09:35:00.018-08:002023-01-12T09:43:43.725-08:00What is Post Weld Heat Treatment?<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDUNph5N0Kn5AHDQioYDCHd9aD6obzWJ_nb3ARXhCN6gGoF69kb8jaKGgq24JAl0IU3Nfgo-c3xPJUpLbyRgjQCAfLLyhvcPg33HV9h5cychk6JvAdiRMFhnO0zB7_0S52M93MMUXpD6MNvNW40BjyTWnh20JQryJw9M0O84GgpdCrw9v_O8dVP2Ec/s1200/Hotfoil-Post-Weld-Heat-Treat-1.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="What is Post Weld Heat Treatment" border="0" data-original-height="630" data-original-width="1200" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDUNph5N0Kn5AHDQioYDCHd9aD6obzWJ_nb3ARXhCN6gGoF69kb8jaKGgq24JAl0IU3Nfgo-c3xPJUpLbyRgjQCAfLLyhvcPg33HV9h5cychk6JvAdiRMFhnO0zB7_0S52M93MMUXpD6MNvNW40BjyTWnh20JQryJw9M0O84GgpdCrw9v_O8dVP2Ec/w640-h336/Hotfoil-Post-Weld-Heat-Treat-1.jpg" title="What is Post Weld Heat Treatment" width="640" /></a></div><div><br /></div><div><div><b>Post weld heat treatment (PWHT)</b> is a process in which a welded component is heated to a specific temperature and then cooled at a controlled rate, with the goal of reducing the residual stresses that are present in the weld and the heat-affected zone (HAZ). PWHT is often used in the manufacturing of pressure vessels, boilers, and other components that are subjected to high stresses and must meet certain strength and toughness requirements.</div><div><br /></div><div>There are several different methods that can be used for PWHT, including:</div><div><ul style="text-align: left;"><li><b>Electric heating</b>: This method involves using electric resistance heaters to heat the component to the required temperature.</li><li><b>Gas heating</b>: This method involves using gas burners or a gas-fired furnace to heat the component.</li><li><b>Induction heating</b>: This method involves using an induction coil to generate an alternating current in the component, which creates heat through resistive heating.</li></ul><div><b><br /></b></div><div><b><a href="https://hotfoilehs.com/article_76_Furnace-Fabrication-Capabilities.cfm">FURNACES FOR PWHT</a></b></div><div><br /></div><div>There are several types of furnaces used for post weld heat treatment, including:</div><div><ul style="text-align: left;"><li><b>Box Furnaces</b>: These are the most common type of furnace used for post weld heat treatment. They are typically made of steel and are insulated to retain heat. They can be heated by gas, electricity, or oil, and are often used for small to medium-sized parts.</li><li><b>Pit Furnaces</b>: These are similar to box furnaces, but are sunken into the ground. They are used for larger parts and are often used for heat treatment of steel plates and structural steel.</li><li><b>Continuous Furnaces</b>: These are used for heat treating large quantities of parts. They consist of a conveyor system that moves the parts through the furnace.</li><li><b>Car-Bottom Furnaces</b>: These are similar to pit furnaces, but are raised off the ground and have a car-bottom design. They are used for heat treating large, heavy parts, such as castings and forgings.</li><li><b>Atmosphere Controlled Furnace</b>: This type of furnace is used to control the atmosphere inside the furnace during heat treatment. This is useful to prevent oxidation of the parts.</li></ul></div></div><div><b><br /></b></div><div><b><a href="https://hotfoilehs.com/article_44_Ceramic-Mat-Heaters-Rope-Heaters-4-Banks-and-Accessories.cfm">LOCALIZED PWHT WITH CERAMIC MAT HEATERS</a></b></div><div><br /></div><div><div><b>Ceramic mat heaters</b> are used for localized post weld heat treatment to provide a controlled and consistent heat source for specific areas of a welded joint. These heaters are typically made from high-temperature ceramic materials that can withstand extreme temperatures and provide a uniform heat distribution.</div><div><br /></div><div>During post weld heat treatment, ceramic mat heaters are placed on the area of the weld that needs to be treated. The heaters are then turned on and the temperature is gradually increased until it reaches the desired level. The heat is maintained for a specific period of time, depending on the type of material and the desired outcome of the heat treatment.</div><div><br /></div><div>One of the main advantages of using ceramic mat heaters for post weld heat treatment is that they can be easily positioned and repositioned to provide heat to specific areas of the weld. This allows for more precise and accurate heat treatment, which can result in a stronger and more durable weld.</div><div><br /></div><div>Another advantage of using ceramic mat heaters is that they are very energy efficient, as they only heat the specific area that needs to be treated, reducing energy consumption and costs.</div></div><div><br /></div><div><b>HEAT UP AND COOL DOWN RATE</b></div><div><br /></div><div>The heat-up and cool-down rates during post-weld heat treatment (PWHT) are important because they affect the microstructure of the welded area, and thus its mechanical properties. If the heat-up rate is too fast, the weld may not fully austenize, leading to a lack of uniformity in the microstructure and potentially reducing the strength of the welded joint. Similarly, if the cool-down rate is too fast, the weld may not fully transform to the desired microstructure, again leading to a lack of uniformity and reduced strength. Therefore, a controlled heat-up and cool-down rate is necessary to ensure the proper microstructure and mechanical properties in the welded area.</div><div><br /></div><div>The specific PWHT method and parameters (temperature, hold time, cooling rate, etc.) will depend on the material being welded and the desired properties of the finished component.</div></div><div><br /></div><div>Hotfoil-EHS can assist you in designing and fabricating the best solutions for your heat treatment requirement. Call them at 609-588-0900 or visit <a href="https://hotfoilehs.com">https://hotfoilehs.com</a>.</div><div><br /></div><div><br /></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-74793040766947303582022-12-20T08:07:00.004-08:002022-12-20T08:07:38.474-08:00Happy Holidays from Hotfoil-EHS<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrxD9LDBMHhFDs_Ds7pEb5cvR52mI-Tfb7BoV_S2HyLqFNaCewdD6ebnBmTmnAqHAYYCoWd2nGIh0LIXw7PArllPQH9nqXGr8Ow1OwnFDLiilGoGdY_zjvfaUiOkYgvgRpGiFTroYDu5DEtTWfgU61lh2E6Z8qwdRp9I13Bb4PWcpZ5N_32DTE9T2W/s1280/Hotfoil-Holidays-1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Happy Holidays from Hotfoil-EHS" border="0" data-original-height="720" data-original-width="1280" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrxD9LDBMHhFDs_Ds7pEb5cvR52mI-Tfb7BoV_S2HyLqFNaCewdD6ebnBmTmnAqHAYYCoWd2nGIh0LIXw7PArllPQH9nqXGr8Ow1OwnFDLiilGoGdY_zjvfaUiOkYgvgRpGiFTroYDu5DEtTWfgU61lh2E6Z8qwdRp9I13Bb4PWcpZ5N_32DTE9T2W/w640-h360/Hotfoil-Holidays-1.jpg" title="Happy Holidays from Hotfoil-EHS" width="640" /></a></div><br />Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-73397385189974511412022-03-17T09:03:00.005-07:002022-03-17T09:03:59.433-07:00Purchase All Your Pre and Post Welding Heat Treatment Supplies Online from HeatandWeld.com<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEjKiF_WUiYiF3OlRqTlFIrr2Lqsf_WoGBPtfNbTX-39rkZxAEKQsHFaWfSLryTcNk7J9xop0AUeL6CmYemBIug3oN3AWD7bcmldrvFYbDmByoVNt3CbxME1ceaepQ_bGBG9Rw4dY5G2wS9FF73HaZ73DHjRtHX24JpBcnXBLsa6kkgIDMzk9Pv1y2Pz=s1200" style="margin-left: 1em; margin-right: 1em;"><img alt="Pre and Post Welding Heat Treatment Supplies" border="0" data-original-height="628" data-original-width="1200" height="334" src="https://blogger.googleusercontent.com/img/a/AVvXsEjKiF_WUiYiF3OlRqTlFIrr2Lqsf_WoGBPtfNbTX-39rkZxAEKQsHFaWfSLryTcNk7J9xop0AUeL6CmYemBIug3oN3AWD7bcmldrvFYbDmByoVNt3CbxME1ceaepQ_bGBG9Rw4dY5G2wS9FF73HaZ73DHjRtHX24JpBcnXBLsa6kkgIDMzk9Pv1y2Pz=w640-h334" title="Pre and Post Welding Heat Treatment Supplies" width="640" /></a></div><div><br /></div><div><div><a href="https://HeatandWeld.com">HeatandWeld.com</a> is an online store that sells components, parts, and systems used in welding heat treatment applications where accurate heating and temperature control is critical for solid welds. </div><div><br /></div><div>Welding heat-treating specialties used in preheat and post heat are available in stock and online. Products such as ceramic mat heaters, thermocouple attachment units (TAUs), Brinell testers, thermocouple wire, insulation, camlocks, and recorder supplies are available for purchase through this website. HeatandWeld has a large inventory, quick delivery, and affordable prices.</div><div><br /></div><h3 style="text-align: center;">Procure all of your pre and post-welding heat treatment supplies from <a href="https://HeatandWeld.com">HeatandWeld.com</a>. </h3></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-8963608539251887992021-12-22T14:32:00.002-08:002021-12-22T14:32:11.869-08:00Happy Holidays from Hotfoil-EHS<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEh1J1bPPPvn_oyFCelTtFgHJY32OobAH_mEpjZHUK4jgcTCFDVumymUKpofJz1ryfrMNyOXrfAJUQ2-FXSlxpinnwrr3PsGW3eUCNqE2Dk3NVWxVF3JHNegBzPqJ3LXq09oN2sve5urWEH2Ww6kyFUfXdETf9bpZMINq2F6s-T3aZRu-PnNXnPrfX4E=s1200" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="628" data-original-width="1200" height="334" src="https://blogger.googleusercontent.com/img/a/AVvXsEh1J1bPPPvn_oyFCelTtFgHJY32OobAH_mEpjZHUK4jgcTCFDVumymUKpofJz1ryfrMNyOXrfAJUQ2-FXSlxpinnwrr3PsGW3eUCNqE2Dk3NVWxVF3JHNegBzPqJ3LXq09oN2sve5urWEH2Ww6kyFUfXdETf9bpZMINq2F6s-T3aZRu-PnNXnPrfX4E=w640-h334" width="640" /></a></div><br />Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-78532155132921593942021-11-11T05:55:00.000-08:002021-11-11T05:55:30.026-08:00Thank You Veterans<div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-CSYBZSm7mmU/YY0gdzDOTpI/AAAAAAAAChw/ZhkDWTDxDVEMLaF6LgVl92edkCyvhfvsACNcBGAsYHQ/s1200/Hotfoil-Veterans.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Veterans Day 2021" border="0" data-original-height="628" data-original-width="1200" height="334" src="https://1.bp.blogspot.com/-CSYBZSm7mmU/YY0gdzDOTpI/AAAAAAAAChw/ZhkDWTDxDVEMLaF6LgVl92edkCyvhfvsACNcBGAsYHQ/w640-h334/Hotfoil-Veterans.jpg" title="Veterans Day 2021" width="640" /></a></div><br /><p></p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-46332779416669859332021-06-23T05:44:00.003-07:002021-06-23T05:44:35.372-07:00Expert Powder Coating in South Jersey and Philadelphia<div class="separator" style="clear: both; text-align: center;"><a href="https://hotfoilehs.com/article_125_Powder-Coating-Services-in-South-Jersey.cfm" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Expert Powder Coating in South Jersey and Philadelphia" border="0" data-original-height="628" data-original-width="1200" height="334" src="https://1.bp.blogspot.com/-zzylQsOMq6g/YNMr33unkkI/AAAAAAAACa4/NoKRfuhD2Y0isaem8on6V8KNGojVc3CUwCNcBGAsYHQ/w640-h334/Powder-Coating-South-Jersey-Philadelphia.jpg" title="Expert Powder Coating in South Jersey and Philadelphia" width="640" /></a></div><p></p><p><a href="https://hotfoilehs.com/article_125_Powder-Coating-Services-in-South-Jersey.cfm" target="_blank">Hotfoil-EHS powder coatings</a> provide our customers in <a href="https://hotfoilehs.com/article_125_Powder-Coating-Services-in-South-Jersey.cfm" target="_blank">South Jersey</a> and <a href="https://hotfoilehs.com/article_126_Powder-Coating-Services-in-Philadelphia.cfm" target="_blank">Philadelphia</a> with exceptional quality.</p><p><b>Hofoil-EHS</b> will powder coat anything you desire using dry-powder, electrostatic coating methods. Powder coating can apply to almost any metal such as car/plane/boat parts, industrial parts, metal doors and cabinets, wheels, and patio furniture. </p><p>Powder coating is a dry finishing technique that applies to a wide range of metal items. While curing in a high-temperature oven, a dry mixture of resins, pigments, and fillers melt and fuse to form a solid covering. Powder coating provides a superior surface while also adding features like corrosion resistance, chemical resistance, heat resistance, impact resistance, abrasion resistance, UV resistance, and resistance to other extreme weather conditions.</p><a href="https://hotfoilehs.com/powdercoating">https://hotfoilehs.com/powdercoating</a><br />609.588.0900Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-41160580420214381562021-06-04T05:33:00.003-07:002021-06-04T05:33:54.312-07:00Powder Coating Services in New Jersey, Pennsylvania, and Delaware<p style="text-align: center;"><iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/zw-ncYYyYGg?rel=0&showinfo=0" title="YouTube video player" width="560"></iframe></p><p><a href="https://hotfoilehs.com/powdercoating" target="_blank">Powder coating</a> is a dry finishing technique that applies to a wide range of metal items. While curing in a high-temperature oven, a dry mixture of resins, pigments, and fillers melt and fuse to form a solid covering. Powder coating provides a superior surface while also adding features like corrosion resistance, chemical resistance, heat resistance, impact resistance, abrasion resistance, UV resistance, and resistance to other extreme weather conditions. </p><p><a href="https://hotfoilehs.com/powdercoating" target="_blank">Hotfoil-EHS powder coatings</a> provide our customers with exceptional quality in powder coating anything they desire using dry-powder, electrostatic coating methods. </p><p>POWDER COATING CAN APPLY TO ALMOST ANY METAL - Car/plane/boat parts, industrial parts, metal doors and cabinets, wheels, and patio furniture. </p><p>Hotfoil-EHS, located in Hamilton, NJ, conveniently serves the New Jersey, Pennsylvania, and Delaware region but will help any customer in the USA as long as logistic and shipping costs make sense. </p><h2 style="text-align: left;">Call Hotfoil-EHS today with your powder coating requirements.</h2><p>609.588.0900<br /><a href="https://hotfoilehs.com/powdercoating">https://hotfoilehs.com/powdercoating</a></p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-72032061439667546302021-05-28T06:50:00.001-07:002021-05-28T06:52:35.828-07:00Memorial Day: A day to remember and honor those who served our nation and are no longer with us.<div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-k-hq45qWhyY/YLD0w7ru--I/AAAAAAAACZE/k_ziDhMJk38N1qDPtHqh-Fey3cwUgqPVgCNcBGAsYHQ/s1200/Hotfoil.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="Memorial Day 2021" border="0" data-original-height="628" data-original-width="1200" height="334" src="https://1.bp.blogspot.com/-k-hq45qWhyY/YLD0w7ru--I/AAAAAAAACZE/k_ziDhMJk38N1qDPtHqh-Fey3cwUgqPVgCNcBGAsYHQ/w640-h334/Hotfoil.jpg" title="Memorial Day 2021" width="640" /></a></div><br /><p></p><div>"They fought together as brothers-in-arms. They died together and now they sleep side by side. To them we have a solemn obligation." — Admiral Chester A. Nimitz</div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-5937302193035869292021-03-31T12:38:00.006-07:002021-03-31T12:38:54.983-07:0024 Zone Custom Heat Treating Power Console<div style="text-align: center;"><iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/AhUEbWltiL4" title="YouTube video player" width="560"></iframe></div><br /><a href="https://hotfoilehs.com">https://hotfoilehs.com</a><div><b>609.588.0900</b></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-4284825472180315952021-02-18T05:13:00.003-08:002021-02-18T05:13:16.875-08:00Aftek EHS Transformers for Heat Treatment, Welding Machines and Power Consoles<p style="text-align: center;"><iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/E-f3WfCWSsM?rel=0&showinfo=0" width="560"></iframe></p><p><b><a href="https://hotfoilehs.com/article_60_AFTEK-EHS.cfm" target="_blank">Aftek EHS</a></b>, a business group under Hotfoil-EHS, designs and manufactures electrical transformers used in heat treating, welding machines, power consoles, and other industrial applications. Aftek transformers regulate amperage and voltage and convert the AC source to a suitable current for welding and heating. Aftek also manufactures step-up transformers that convert 208, 3 phase to 480 volt 3 phase for machine operation in facilities without access to 480-volt power. All products are proudly manufactured in the USA.</p><p>For more information about Aftek transformers, contact Hotfoil-EHS. Call them at <b>+1 609-588-0900</b> or visit their website at <a href="https://hotfoilehs.com/transformers">https://hotfoilehs.com/transformers</a>.</p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-80540707722140669662020-12-23T13:41:00.004-08:002020-12-23T13:41:52.542-08:00Merry Christmas from Hotfoil-EHS<p> </p><div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-CRPdOyor3CU/X-O5kIzCtiI/AAAAAAAACQk/FpX9AOz384cwAtcyDmi_ThGZTgXlBYc8QCNcBGAsYHQ/s1200/Merry-Christmas-Hotfoil-EHS.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Merry Christmas from Hotfoil-EHS" border="0" data-original-height="628" data-original-width="1200" height="334" src="https://1.bp.blogspot.com/-CRPdOyor3CU/X-O5kIzCtiI/AAAAAAAACQk/FpX9AOz384cwAtcyDmi_ThGZTgXlBYc8QCNcBGAsYHQ/w640-h334/Merry-Christmas-Hotfoil-EHS.jpg" title="Merry Christmas from Hotfoil-EHS" width="640" /></a></div><br /><p></p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-49231157439205003042020-12-23T13:26:00.003-08:002020-12-23T13:28:39.590-08:00Thermocouple Attachment Units Save Time and Money<div class="separator" style="clear: both; text-align: center;"><a href="https://www.hotfoilehs.com/article_82_EHS.cfm" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Thermocouple Attachment Units" border="0" data-original-height="628" data-original-width="1200" height="334" src="https://1.bp.blogspot.com/-gmKxyZl_vFE/X-O0_M20FII/AAAAAAAACQY/EL2Yd4m3Vnk6pLaFI9kqhiEHBrJr8U6nACNcBGAsYHQ/w640-h334/Hotfoil-EHS-Thermocouple-Attachement-Unit.jpg" title="Thermocouple Attachment Units" width="640" /></a></div><p>Always find yourself buying pre-made thermocouples? Do you have a hard time identifying the quick and easy ways to go about attaching studs or pins to a target structure? It sounds like you need a thermocouple attachment unit. The TAU will save time and money and allow you the control to fabricate these products when and where you need them.</p><p>The <a href="https://www.hotfoilehs.com/article_43_Pinwelders-Thermocouple-Attachment-Units-and-Accessories.cfm" target="_blank">Hotfoil-EHS Thermocouple Attachment Unit (TAU) </a>allows the capacitive discharge method to connect thermocouples to a workpiece directly. </p><p>This productivity tool offers high integrity welded bonds that provides secure and precise temperature control and documentation by reducing the possibility of costly rework due to thermocouples breaking off during the heat treatment process. Thermocouple attachment units offer a very convenient and economical method of forming and attaching thermocouple sensing wires, studs, and pins where and when you need them. </p><p>A unique automatic operation function of the Hotfoil-EHS TAU overcomes difficulties associated with manual attachment units that require both hands to work. When operating at high levels or inaccessible areas, Hotfoil-EHS's TAU needs only one hand to use, a significant safety feature.</p><p></p><div class="post-footer" style="color: #999999; line-height: 1.6; margin: 0.5em 0px 0px;"><div class="post-footer-line post-footer-line-1" style="-webkit-text-stroke-width: 0px; background-color: white; color: #999999; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13.5px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span class="post-author vcard" style="margin-left: 0px; margin-right: 1em;"></span><span class="post-timestamp" style="margin-left: -1em; margin-right: 1em;"></span><span class="post-comment-link" style="margin-right: 1em;"></span><span class="post-icons" style="margin-right: 1em;"></span><div class="post-share-buttons goog-inline-block" style="display: inline-block; margin-right: 0px; margin-top: 0.5em; position: relative; vertical-align: middle;"></div></div></div><p></p><div class="post-body entry-content" id="post-body-6214857527671332557" itemprop="articleBody" style="font-size: 14.85px; line-height: 1.4; position: relative; width: 708px;"><p><b>Hotfoil-EHS<br />609-588-0900</b><br /><a href="http://www.hotfoilehs.com/" style="color: #e53319; text-decoration: none;">www.hotfoilehs.com</a></p><div style="clear: both;"></div></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-83661135005754393332020-11-25T08:48:00.005-08:002020-11-25T08:48:50.288-08:00Happy Thanksgiving from Hotfoil-EHS<div class="separator" style="clear: both; text-align: center;"><a href="https://hotfoilehs.com" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Happy Thanksgiving from Hotfoil-EHS" border="0" data-original-height="1016" data-original-width="1920" height="338" src="https://1.bp.blogspot.com/-cAy6Cbzy_yM/X76KyTz-GbI/AAAAAAAACO4/hEviIilAN08rWINHUZpcU0b4NTch-F90gCNcBGAsYHQ/w640-h338/Hotfoil-Thanksgiving.jpg" title="Happy Thanksgiving from Hotfoil-EHS" width="640" /></a></div><p></p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-62148575276713325572020-09-21T07:01:00.002-07:002020-09-21T07:01:38.185-07:00Pre and Post Weld Heat Treatment<div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-AMP88IeGXK4/X2iuO1ahuOI/AAAAAAAACLM/wVrEvuAhez4FGWHHURTUednrtk3aViW1gCNcBGAsYHQ/s1313/Pre-post-weld-heat-treatment-Hotfoil-EHS.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Pre Post Heat Treatment" border="0" data-original-height="439" data-original-width="1313" height="214" src="https://1.bp.blogspot.com/-AMP88IeGXK4/X2iuO1ahuOI/AAAAAAAACLM/wVrEvuAhez4FGWHHURTUednrtk3aViW1gCNcBGAsYHQ/w640-h214/Pre-post-weld-heat-treatment-Hotfoil-EHS.jpg" title="Pre Post Heat Treatment" width="640" /></a></div><p>Heat treatment in any large-scale welding process (such as pipeline welding, shipbuilding, boiler manufacturing) is critical to a weld's efficiency and, therefore, essential in a structure's performance, and therefore its importance can never be overlooked. </p><p>An examination of industrial code or a consultation with a welding specialist is imperative if in doubt. A review of the welding code is the first determinant of whether preheating is required. The welding code carefully defines the minimum preheat, the temperature, the soak time, and the welding method. Many requirements, all obtained from years of rigorously checked data, are recognized by welding codes. This data is well supported by several sources, including metallurgical research, chemical material properties, and radiographic analysis. </p><p>Welding heat treatment in its simplest form is the <a href="https://hotfoilehs.com/article_82_EHS.cfm" target="_blank">process of heating</a> the base metal (parts to being welded) before welding to the desired temperature and then allowing it to cool at a given rate under regulated conditions. The exact temperature the component needs to achieve (before welding) is called the "preheat temperature." </p><p>There are several main reasons why preheating before welding is necessary. A preheated part cools more slowly, which slows down the welded part's overall cooling rate. This slow cooling strengthens the metallurgy (crystalline structure), which makes it less susceptible to cracking. Hydrogen that could be present immediately after a weld is therefore released more effectively, reducing cracking risk. Preheating at the weld joint and surrounding metal often mitigates stress from the shrinkage. It is preheating that decreases the risk of fractures due to brittleness during processing. </p><p><a href="https://hotfoilehs.com/article_82_EHS.cfm">Electric preheaters for welding</a>, known as "<a href="https://hotfoilehs.com/article_105_Ceramic-Mat-Heater-Gallery.cfm" target="_blank">ceramic mat heaters,</a>" are durable and versatile heating components built to fit evenly around the weld and surrounding area. Ceramic mat heaters are temperature controlled by a power console that uses thermocouples and electronic controllers to regulate the preheat temperature profile, track it, and record the temperature data. </p><p>Another less favored method for heating the target piece is with a torch or open flame, but this method has apparent safety issues and controllability problems. Also used are <a href="https://hotfoilehs.com/article_76_Furnace-Fabrication-Capabilities.cfm" target="_blank">heat treat furnaces</a>, but these usually involve off-site transport of the target item. </p><p>For safety, portability, and controllability, induction heaters give an appealing alternative. <a href="https://hotfoilehs.com/article_109_Fusion-45-Induction-Console.cfm" target="_blank">Induction heating</a> is endorsed because, instead of open flames or external electrical components, it uses molecular excitation as its source of heat. Induction heating operates very rapidly, and there are far fewer worries about component contamination since there is no interaction with the target item. When very high temperatures and uniform control is required, many industrial processes use induction heating.</p><p>It is critically important to review and discuss your heat treating requirements with an expert before welding. Don't risk safety or waste time and money by "winging it" when it comes to heat treatment.</p><p><b>Hotfoil-EHS<br />609-588-0900</b><br /><a href="http://www.hotfoilehs.com">www.hotfoilehs.com</a></p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-770084017451584802020-09-03T09:02:00.005-07:002020-09-03T09:02:51.028-07:00Happy Labor Day from Hotfoil-EHS<p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-rf_MR6YB4lQ/X1ETdBbYv7I/AAAAAAAACKY/qbzkzsVxdxwIX1ZnUu0DUjGWCPFdk7f5wCNcBGAsYHQ/s1366/Happy-Labor-Day-Hotfoil.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Happy Labor Day" border="0" data-original-height="768" data-original-width="1366" height="360" src="https://1.bp.blogspot.com/-rf_MR6YB4lQ/X1ETdBbYv7I/AAAAAAAACKY/qbzkzsVxdxwIX1ZnUu0DUjGWCPFdk7f5wCNcBGAsYHQ/w640-h360/Happy-Labor-Day-Hotfoil.jpg" title="Happy Labor Day" width="640" /></a></div><br /><div style="text-align: center;"> <b>A sincere thanks to all the hard working people who make the US economy run each and every day. </b></div><p></p><p><br /></p>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-65245067860115648172020-07-02T07:55:00.001-07:002020-07-02T07:55:55.485-07:00Happy 4th of July from Hotfoil-EHS<br /><div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-7u8PM3gGSMg/Xv31YcyTbXI/AAAAAAAACG0/ePrGluB2yPUOBSiU5T6Njm1ZZPn99DtkACK4BGAsYHg/s1280/HotfoilEHS-4th.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Happy 4th" border="0" data-original-height="720" data-original-width="1280" height="360" src="https://1.bp.blogspot.com/-7u8PM3gGSMg/Xv31YcyTbXI/AAAAAAAACG0/ePrGluB2yPUOBSiU5T6Njm1ZZPn99DtkACK4BGAsYHg/w640-h360/HotfoilEHS-4th.jpg" title="Happy 4th" width="640" /></a></div>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-74474573529375212472020-05-22T07:35:00.002-07:002020-05-22T07:35:53.906-07:00Hotfoil-EHS for All Your Pre and Post Weld Heat Treating Needs<div style="text-align: center;">
<iframe allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/2ICw_KHiRQQ" width="560"></iframe></div>
Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-72044812060421157342020-03-20T15:05:00.001-07:002020-03-20T15:06:24.400-07:00COVID-19 Update<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/-_kP0x6kcEdM/XnU-CpL3xDI/AAAAAAAACBk/_XugVJcdLCAbdwgPuN9xRnWFCZ6juuGaACNcBGAsYHQ/s1600/coronavirus-2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="304" data-original-width="900" height="216" src="https://1.bp.blogspot.com/-_kP0x6kcEdM/XnU-CpL3xDI/AAAAAAAACBk/_XugVJcdLCAbdwgPuN9xRnWFCZ6juuGaACNcBGAsYHQ/s640/coronavirus-2.jpg" width="640" /></a></div>
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<div style="text-align: left;">
March 20, 2020</div>
</div>
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<b>We at Hotfoil-EHS continue to navigate the rapidly changing COVID-19 pandemic.</b> We are closely monitoring the situation and following the guidance available through the <a href="http://www.cdc.gov/coronavirus/2019-ncov/index.html" target="_blank">Centers for Disease Control (CDC)</a>, the <a href="https://www.who.int/emergencies/diseases/novel-coronavirus-2019/events-as-they-happen" target="_blank">World Health Organization (WHO)</a> and state and regional public health authorities. We are committed to the safety of our customers, business partners, and employees.<br />
<br />
Our manufacturing locations remain open and our supply chain remains intact. We are maintaining a limited staff in our New Jersey, Texas, and Tennessee facilities to support critical functions including shipping/receiving, accounting, and IT.<br />
Additionally, we have implemented the following:<br />
<ul>
<li>Restricting visitor access to all facility locations.</li>
<li>Increased frequency of sanitizing facilities and work spaces.</li>
<li>Requiring regular hand washing and sanitizing.</li>
<li>Using technology where possible to replace in-person meetings.</li>
</ul>
We will update this statement as the situation changes.<br />
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<b>We thank you for your continued business and support. Please stay safe and be well.</b>Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-78934959143082402752020-01-16T06:54:00.000-08:002020-01-16T06:54:39.341-08:00New Hotfoil-EHS Product Catalogs<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/-XKxkOBTTusw/VessBvCl5YI/AAAAAAAAASM/ef9uE_IMS9AV9UtcsdiQf-ftfj1_By-oACPcBGAYYCw/s1600/HF-EHS-Logo-Final.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="732" data-original-width="732" height="320" src="https://1.bp.blogspot.com/-XKxkOBTTusw/VessBvCl5YI/AAAAAAAAASM/ef9uE_IMS9AV9UtcsdiQf-ftfj1_By-oACPcBGAYYCw/s320/HF-EHS-Logo-Final.png" width="320" /></a></div>
There are 2 updated Hotfoil-EHS catalogs available for <a href="https://hotfoilehs.com/section_90_Literature-Library.cfm" target="_blank">download</a> now.<br />
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<a href="https://hotfoilehs.com/section_90_Literature-Library.cfm" target="_blank">A revised and updated Hotfoil product catalog can be downloaded here</a>. It includes information about Type HB Hopper Heating Modules,Type FRP Heating Panels, Type ELP Heating Panels,Type GA Heating Blankets, Type HSR / HSRX Silicone Rubber Heaters, Type PCW and SRC Heating Cable, Type MI Metal Sheathed Heating Cable, Tank Heating Controls, Hopper and Chute Heater Controls, and Heat Control Systems for Hazardous Areas.<br />
<br />
<a href="https://hotfoilehs.com/section_90_Literature-Library.cfm" target="_blank">A revised and updated EHS product catalog can be downloaded here</a>. It includes information about Power Consoles, Fusion 45 Induction Console, Ice Star Heat Treatment Control System, Ceramic Mat Heaters, Rope Heaters, 4-Banks and Accessories, Temperature Recorders, Pinwelders & Thermocouple Attachment Units and Accessories, Brinell Tester & Poldi Hardness Testers, Triple Cable Sets, Splitters, Insulation and Accessories, T/C Wire, Banding, Twistlocks and Accessories, EHS Gas Trains, Furnace Fabrication & Capabilities, and Custom Generator Trucks / Mobile Heat Treatment.<br />
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For more information, contact Hotfoil-EHS by calling 609-588-0900 or visiting their web site at <a href="https://hotfoilehs.com/">https://hotfoilehs.com</a>.Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.comtag:blogger.com,1999:blog-1684135022638953890.post-82999060292681139512020-01-02T12:28:00.002-08:002020-01-02T12:28:27.221-08:00Here's to a Healthy, Happy, and Prosperous New Year<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/--0CI4ORDutY/Xg5SWpQF6jI/AAAAAAAAB7w/V0y6mywElDYgbfRgEvvrqu_0qEcIJA6kQCNcBGAsYHQ/s1600/Happy-New-Year-Hotfoil-EHS.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1080" data-original-width="1080" height="640" src="https://1.bp.blogspot.com/--0CI4ORDutY/Xg5SWpQF6jI/AAAAAAAAB7w/V0y6mywElDYgbfRgEvvrqu_0qEcIJA6kQCNcBGAsYHQ/s640/Happy-New-Year-Hotfoil-EHS.png" width="640" /></a></div>
<br />Hotfoil-EHShttp://www.blogger.com/profile/07048605251037435151noreply@blogger.com