Sunday, January 22, 2017

Applying Ceramic Mat Heaters for Pre and Post Weld Heat Treatment

Designed for pre and post weld heat treating, ceramic mat heaters function efficiently for both curved and flat applications. The flexibility of these heaters provides a convenient means to heat treat large metal surfaces in the field.

The application of ceramic mat heaters is straightforward - the heater is placed directly on the part to be welded, insulation is normally laid over the heater, and voltage is applied. A thermocouple is tack-welded near to monitor the part. The part is brought up to temperature and then the welding is done. After the weld, the part is cooled at a controlled rate.

Ceramic Mat Heaters
Welding a large pipe with localized heating using
ceramic mat heaters.
Pipe prep before welidng
Preparing the pipe for the weld and allowing
the heaters to raise the temperature of the pipe.

ceramic heaters before weld
Wrapping ceramic mat heaters around
spool piece.
Close-up of ceramic mat heaters around
spool piece.