Showing posts with label thermocouple attachment. Show all posts
Showing posts with label thermocouple attachment. Show all posts

Thermocouple Attachment Units in Heat Treatment

Thermocouple Attachment Units in Heat Treatment

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.

The Thermocouple Attachment Unit (TAU) is a crucial device used to construct and apply these thermocouples to the workpieces or target pieces that will be welded.

Construction of Thermocouples:

  1. Preparation of Thermocouple Wire: 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.
  2. Joining the Wires: 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.

Application of Thermocouples to Welding Target Pieces:

  1. Location Selection: 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.
  2. Attachment: 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.
  3. Connection to Measurement Device: 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.

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.

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.

Thermocouple Attachment Units Save Time and Money

Thermocouple Attachment Units

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.

The Hotfoil-EHS Thermocouple Attachment Unit (TAU) allows the capacitive discharge method to connect thermocouples to a workpiece directly. 

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. 

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.


The TAU: A Perfect Solution for Fast, Strong, and Inexpensive Thermocouple, Stud, and Pin Welidng

Thermocouple attachment unit (TAU)
Thermocouple attachment unit (TAU) used for creating
thermocouples quickly and inexpensively, plus welding
studs and pins to metal structures.
Are you buying pre-made thermocouples? Do you know how easy it is to make your own? Are you always looking for a fast and easy way to attach studs or pins to a target structure? A thermocouple attachment unit (TAU) is the answer. TAU’s will help you save time and money in the fabrication of welding thermocouples and stud/pin welding.

Thermocouple attachment units (TAUs) are small, self contained spot welders that achieve superior results for welding thermocouple junctions and attachment. They are portable and are easy to use. Also known as thermocouple welders, these units are provide a capacitive discharge (as the energy source) in a compact, self-contained, hand welding unit. They are designed to form very strong, free standing junctions in just seconds using standard thermocouple wire. There's no need for clamping, bracketing or strapping. TAUs provide a direct bonding method for thermocouples, pins and studs that is quick, easy, and low-cost while still providing accurate temperature measurement.

Thermocouple attachment units continue to enhance their power outputs which creates more potential uses for TAUs. Higher power output opens doors to a broader application base. Higher power TAUs can be used to weld thermocouple pairs but also can be used to weld studs, rods and pins to a wide variety of metal structures. For example, a common use for TAU’s is attaching insulation pins to welding insulation blanket support.

An internal power supply constantly recharges an internal battery giving the operator portability in field thermocouple welding. Readily available controls allow for easy adjustment based on wire size and material.

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. Models vary based on requirements. Some models accommodate a greater range of wire sizes and materials, handling wire up to 14 gauge and capable of creating weld junctions in under a second. Because the power supply provides a short recharge interval, multiple welds can be done very quickly (4-6 welds per minute).

For more information on thermocouple attachment units, contact:

2960 East State Street Ext.
Hamilton, NJ 08619
Phone # 609.588.0900
Fax # 609.588.8333