Main features of induction melting furnace

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Main features of induction melting furnace:

1, induction melting furnace can be used for the melting of steel, stainless steel, brass, aluminum, gold,silver and so on.
2, because of the stirring effect which caused by the magnetic force, the melting pool can be stirred during the melting course to ease the floating of the flux and oxides to produce high quality casting parts.
3, wide frequency range from 1KHZ to 20KHZ, working frequency can be designed by changing the coil and compensating capacitor according to the melting material, quantity, stirring effect desire, working noise, melting efficiency and other factors.
4, compared with SCR medium frequency furnace, it can save energy at least 20% and up.
5, small and light, a lot of modes can be selected to melt different amount of matals. Not only it is suitable for the factory, but also suitable for the colleage and researching companies to use.
6, 24hours non-stop melting ability.
7, it’s easy to change melting furnace for different capacity,different material, different way of pouring out, to suitable for all kinds of requirements.

The lining of induction melting furnace is divided into four parts: furnace lid, furnace hearth, throat and and sensor. Especially throat,the most critical position’s refractory material directly affects the life and operating costs of the furnace.

Refractory material used in lid：The main effect of furnace lid is to reduce the heat loss of furnace, preventing the metal liquid splash, which requires the lid to be light weight, good insulation effect and anti-corrosion. At present, ceramic fiber is light weight and low thermal conductivity, thus it is the most ideal refractory lining material. Due to the working temperature of furnace is below 800C, using steel nail or steel mesh to fix the blanket on lid.

Refractory material used in hearth：The refractory material of hearth should use low porosity and high density high alumina bricks.

Refractory material used in throat and sensor：The structure of throat and sensor is complicated, thus it mostly adopts unshaped refractory material. Castable uses high alumina refractory material, like corundum, mullite.