
The three most significant uses of mica in the metallurgical field are to manufacture refractory materials for industrial furnaces, such as power-frequency furnaces, intermediate-frequency furnaces, and electric arc welding furnaces.
1, Industrial frequency furnace and intermediate frequency furnace: Mica can be made into inductor insulating materials and material heat insulation for both the walls and bottom of the furnaces. The parts’ operating conditions include high temperatures and electromagnetic-field eddy-current erosion; mica meets these requirements as an excellent insulating material, in addition to its heat-insulating properties. At the same time, mica can be used to produce insulating gaskets for heating coils (to enhance warmth and protect electric-stove quartz tubes).
2, Electric arc furnace: Mica mainly produces electrode insulation gaskets for electric smelting furnaces, which can insulate electrodes from high temperatures and chemical erosion. The mica thermal insulation gasket does so by offering excellent high-temperature resistance and the ability to withstand strong electric fields between electrodes, ensuring you can maintain the utmost safety possible with a stable presence of active electrodes in your system.
Generally speaking, mica is an essential fireproofing material with a wide range of applications in metallurgy. The use of mica in industrial furnaces, such as an intermediate-frequency furnace for electric arc melting and shielding after smelting (intermediate), extends the equipment’s service life, which is greater than before; it can also be used for high-temperature downhole sealing mud instead of Pfluger’s materials. This significantly reduces process recovery time compared to traditional insulation technology.
Highmica manufactures an extensive line of mica insulation material and thermal insulating components for the metallurgical industry.


