Intermediate frequency melting aluminum furnace lining selection
Due to the high frequency of the intermediate frequency aluminum furnace, the high vibration frequency of the molten aluminum, and the characteristics of aluminum itself, its penetrability is very strong, so the furnace lining is very critical. Special furnace linings for aluminum furnaces should be used. Generally, good furnace linings can be used for more than 300 furnaces. When aluminum melts, the eddy current is very large. In the initial stage of melting, due to the irregular distribution of the charge, the power supply suffers a strong impact, and it is easy to burn the thyristor. Therefore, when making an intermediate frequency power supply, its impact resistance must be considered.