Welding applications such as cross country pipe, process pipe for power plants and high strength/high alloy steels often require preheating the metal to a specific temperature and maintaining that temperature throughout the welding process. The heat drives off trace amounts of hydrogen, which, if it remained in the weld, could lead to cold cracking of the finished part. Some of these same applications also require post-weld stress relief — and controlled sequence of heating and cooling — to restore proper grain structure to the metal. Without stress relief, the metal could be excessively brittle.

Induction Heating Systems

Air Cooled Preheat Systems (pdf file)
(0.24 MB, 0 min 36 sec at 56kb/s)

Liquid Cooled Preheat and Stress Relieving Systems (pdf file)
(0.23 MB, 0 min 34 sec at 56kb/s)

System Components

Intellifire 250 - 25kW Power Source (pdf file)
(0.12 MB, 0 min 18 sec at 56kb/s)

Intellifire 204 - 20kW Power Source (pdf file)
(0.15 MB, 0 min 22 sec at 56kb/s)

IHPS II - 5kW Power Source (pdf file)
(0.11 MB, 0 min 17 sec at 56kb/s)

IH/PC Pendant Controller (pdf file)
(0.13 MB, 0 min 19 sec at 56kb/s)

Flexible Induction Blankets (pdf file)
(0.16 MB, 0 min 23 sec at 56kb/s)