Product Description
Alumina hollow ball is the hollow spherical light insulating refractory made from alumina blown out of electric arc furnace through high temperature melting procedure. Its characteristics are light nature, closed hole and heat resistance. It is an ideal heat insulation filling material of high temperature furnace, fine aggregate of high-temperature light weight fire-proof castable and excellent high-temperature resistance and insulation energy-saving refractory. It can be used as high temperature, ultra-high temperature insulation filler, lightweight aggregate of high temperature refractory concrete, high-temperature casting material, and can also be used for energy conservation down draught kiln, shuttle kiln, molybdenum wire stove, tungsten rod furnace, induction furnace and nitrogen furnace, etc. It is very effective in reducing furnace weight, improving the structure, saving materials and energy.
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