How does the cleanliness of the metal material surface affect the induction heating furnace?

The metal material heated by the induction heating furnace is the cleanliness of the surface of what we commonly call the charge. If there are 3% impurities, it will consume 3% more electricity to melt these impurities, which will also affect the life of the induction heating furnace lining; after verification, induction heating The electric efficiency and melting quality of the furnace are generally 200-300mm block size. If it is too long, it is easy to bridge the heating speed in the furnace and waste energy. This is also the key point of energy-saving induction heating furnace.