... for hardening; for annealing; IGBT Intermediate frequency induction hot forging machine (5-20Khz) Main features 1.Adopt IGBT technology, with ... better, so it reduces th cost when producing.induction welding machine Application of Induction heating equipment: Heating (hot forging, hot ... the high temperature, which is applicable to the smelting of iron, steel, copper, aluminum, zinc as well as various ...