High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation. High alumina brick are used normally in industry furnaces such as Blast furnace, hot-blast furnace and EAF etc.
High alumina bricks are made from bauxite of super quality, bonding chamotte and additives. The main Al203 content is 48%-80%. The advantages of high alumina bricks are high refractoriness, anti alkaline/acid erosions, good strength under high temperature and good thermal shock resistance. High alumina bricks were widely accepted in thermal equipment of metallurgy, petroleum, chemical industry, construction materials, machinery and militaries etc. For High alumina brick the temperature of refractoriness under load is normally above 1420~1550℃ that is higher than the fireclay brick and it increases along with the AL2O3 content enhances. High-alumina lightweight refractory brick bricks have high-alumina bauxite powder and refractory clay as raw materials and some inflammable additions, shaped by tamping or extrusion pressing and fired in high-temp tunnel kiln after being dried.High-alumina lightweight refractory b bricks have three brands in accordance with their bulk densities, which are decided by the amount of the inflammable additions. |
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