Classification of Silicon Aluminum Refractory Brick


Silicon aluminum refractory brick, it is reported that it is based on AL2O3-SiO2 binary system phase diagram as the basic theory, including the following.

1.Silica brick refers to the refractory brick containing SiO293% or more, which is the main species of acid refractory bricks. It is mainly used for masonry coke oven, but also for the vaults and other load-bearing parts of various glass, ceramic, carbon calciner, refractory bricks furnace, also used in high temperature load-bearing parts of hot blast stove, but should not be below 600 ℃ and used in temperature fluctuations of thermal equipment.

2.Clay brick, clay brick is mainly composed of mullite (25% ~ 50%), the glass phase (25% ~ 60%) and cristobalite and quartz (up to 30%). Usually hard clay as raw material, pre-calcined clinker, and then with soft clay, semi-dry or plastic molding method, the temperature at 1300 ~ 1400 C fired clay brick products.

3.High alumina refractory bricks, high alumina refractory bricks mineral composition of corundum, mullite and glass phase, the content depends on the AL2O3 / SiO2 ratio and the type and amount of impurities, according to the level of Al2O3 refractory bricks classified. . High alumina refractory bricks are widely used in the steel industry, non-ferrous metal industry and other industries.

4.Corundum brick, corundum brick is AL2O3 content of not less than 90% to corundum as the main phase of a refractory brick can be divided into sintered corundum brick and fused corundum brick.

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Contact: Mr. Niu
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