Electromagnetic Induction heating melting furnace is famous in energy saving then other traditional melting furnace like coal-fired furnace, oil furnace, resistance furnace, gas furnace, and intermediate frequency furnace. It has energy saving, environmental protection, safety, reliability and other advantages. Different from the traditional furnace, the power supply of the induction heating furnace can supply high-frequency alternating current through the induction coil to generate eddy current in the crucible, thereby directly generating heat on the inner wall of the crucible.