... hardening; for annealing; IGBT Intermediate frequency induction hot forging machine (5-20Khz) Main features 1.Adopt IGBT technology, with ... , so it reduces th cost when producing.induction welding machine Application of Induction heating equipment: Heating (hot forging, ... of various hardware cutting tools, such as diamond tool, abrasive tool, drilling tool, alloy saw blade, hard alloy cutter, milling ...