Boron carbide is produced through high-temperature smelting of boracic acid and carbonaceous materials in electric furnaces. It boasts a theoretical density of 2.52g/cm3, a melting point of 2450°C, and a micro hardness of 4950kgf/mm2. Its exceptional hardness, second only to diamond and cubic boron nitride, coupled with its high temperature resistance, acid-alkali corrosion resistance, high strength, chemical stability, and lightweight, make it an ideal material across various industries.
Pink aluminum oxide or ruby aluminum oxide is made by aluminum oxide powder, which is electrically fused at high-temperature by adding appropriate amount of chromium oxide, etc.
Chromite foundry sand, with its main chemical component Cr2O3, boasts thermal stability, high thermal conductivity, and excellent resistance to alkali slag.
Glass beads, produced from crushed glass and flat glass materials, are processed into spherical shapes through high-temperature melting.
White fused alumina is produced from high-quality aluminum oxide powder, refined and crystallized through electric arc smelting.