21
Mar
2026The Process Theory and Application of Fused Cast Alumina Block
Fused corundum brick is the oxidation of bauxite and other raw material product cooling and solidification of melt in the furnace, it has the advantages of simple process, short process, low product cost. Because of the different varieties of fused alumina, can add different reductant in the process of the welding torch. Approaching corundum melting point (2100 ℃) of the structure of the alumina melt is similar to corundum brick, when this kind of melt on cooling, crystallization becomes corundum brick. When corundum brick melt, melt molar volume increased 23.5%, the heat of fusion is 109.2 KJ/mol, and with the increase of melt temperature, reducing its density.
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