The vacuum induction furnace is a modern equipment that uses the principle of medium frequency induction heating to melt metal under vacuum conditions.Because it can strictly control the melting temperature and alloy composition, and has electromagnetic stirring and powerful high vacuum degassing capabilities, it is widely used in metallurgical plants and related scientific research departments as nickel-based, iron-based and other advanced precision alloys or high-purity metals melting and casting under vacuum or under protective atmosphere.