Main Functions of Brown Fused Alumina

Brown fused alumina, whose common name is carborundum, is made of alumina, carbon materials and scrap iron and the three kinds of raw materials should go through the melting reduction in electric furnace and finally it will become brown artificial corundum. This is the origin of its name. Brown fused alumina’s main chemical component is AL₂O₃, whose content accounts for 94.5%-97%. And it still contains a small amount of Fe, Si, Ti, etc.

Its main functions: 

A. Because of its high temperature resistance, corrosion resistance, and high strength performance, it is used to cast steel slide gate, smelt special alloy, rare metals, ceramics, and blast furnace lining (wall and pipe) and make vessels, spark plugs, heat-resistant oxidation coating physical and chemical.

B. Because of its characteristics of high hardness, good wear resistance and high strength, it is used for all sorts of reaction vessel, pipes and chemical pump parts in the chemical industry system; It also can be used for mechanical parts and all kinds of mold, such as wire drawing die; It also applies to cutting tools, abrasives, bulletproof materials, human body joint, seal die ring, etc.

C. Corundum thermal insulation material is widely used in various high temperature furnaces of furnace wall and furnace top such as corundum light brick, alumina hollow ball and fibre products, which is high temperature resistant and heat preservation. Brown fused alumina size sand is selected in the artificial way, and use the equipment such as roller, ball-milling, barmak to process and the granularity from F8 to F325, which is mainly used for polishing, lapping, grinding industry, etc. It also can be used for water washing, acid pickling treatment methods such as processing according to the requirements of  customers and meet the different needs of customers. 

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