Corundum brick role and use

Corundum brick role and use Alumina content of corundum brick is greater than 90%, so the main phase of corundum refractory products. High temperature compressive strength (up to 340MPa). High load hardening start temperature (greater than 1700 ℃). Very good chemical stability, strong resistance to acid or alkaline slag, metals and glass liquid. Thermal shock resistance has nothing to do with the structure of its structure, compact product corrosion resistance superior, but thermal shock resistance is poor. Divided into sintered corundum brick and fused corundum brick two. It can be sintered with alumina and fused corundum respectively or alumina bauxite with high Al2O3 / SiO2 ratio by sintered method. Can also be made of phosphoric acid or other binder does not burn corundum brick. Important for iron blast furnace and blast furnace stove, steel furnace outside the furnace, sliding water, glass furnace and petrochemical industry furnace.