... 4,Non-contact heat Detailed Product DescriptionIntermediate frequency machine 1,Low energy consumption 2,High production efficiency 3,Easy ... of hot expansion or hot smelting, for instances, embedded welding of copper core of computer radiator with aluminum sheet and ... LHM-200KW IGBT Intermediate Frequency Induction Heating Power, Induction Heating, Welding, Brazing, Hardening, Quenchin(1-20khz)