The structure and function of the inner lining of the intermediate frequency induction furnace

The filling between the metal heated and melted by the induction coil in the medium frequency induction furnace of the ramming material manufacturer is called the furnace wall lining or crucible. It is generally composed of a refractory layer, a heat insulation layer and an insulating layer. The refractory layer is made of acidic, alkaline or neutral refractory materials, and then sintered at high temperature and put into use. The insulation layer is located between the refractory layer and the induction coil. Insulating layers such as cotton cloth, diatomaceous earth bricks, silica, expanded perlite, high silica glass wool, etc. are made of high temperature resistant insulating materials, alkali-free or less alkali glass cloth, natural mica tape, etc. to prevent leakage of the induction coil. An important part of the crucible induction furnace of the induction melting furnace is also a key component. In addition to the role of containing molten metal and smelting, it also plays the role of heat insulation, insulation and energy transfer. The material of the crucible must not only meet the requirements and ensure the service life, but also have certain electronic characteristics