Good Quality High Alumina Brick for Glass Melting Furnace

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Product description of high alumina brick

High alumina brick is a kind of refractory material, and the main component of this refractory brick is Al2O3.
A neutral refractory material with alumina content of 48% or more. It is made of bauxite or other raw materials with high alumina content by molding and calcination. High thermal stability, refractoriness above 1770°C. Good slag resistance, used for lining steelmaking electric furnaces, glass melting furnaces, cement rotary furnaces, etc.

Features of high alumina brick

1. Refractoriness
   The refractoriness of high alumina brick is higher than that of clay brick and semi-silica brick, reaching 1750~1790℃, which is a senior refractory material.

2. Load softening temperature
   Because of the high Al2O3 in high alumina products, less miscellaneous mass, the formation of fusible glass body less, so the load softening temperature is higher than clay bricks, but because the mullite crystallization has not formed a mesh organization, so the load softening temperature is still not as high as silica bricks.
3. Slag resistance
   High alumina brick in Al2O3 more, close to neutral refractory, can resist the erosion of acidic slag and alkaline slag, because it contains SiO2, so the ability to resist alkaline slag than the ability to resist acidic slag is weaker.

Parameters of high alumina brick