Description

Black fused alumina is a kind of flexible abrasive material, which is made of high iron bauxite fused at high temperature in an electric arc furnace and then cool to produce a gray-black crystal with a-Al2O3 and iron spinel as the main mineral phases. Black corundum is an energy-saving and environmentally-friendly alternative wear resistant material because its production process uses waste comprehensive utilization and does not produce any harmful gas. The power consumption cost is lower than that of brown corundum and other materials or aggregate with comparable performance. It has moderate hardness, good toughness, self-sharpness, low grinding heat generated during use so as to not easy to burn workpiece surface, high smoothness of product incision, and slight discoloration etc. It is often used for sandblasting, rust and impurity removal, stainless steel grinding and polishing, laying wear-resistant skid-resistant pavement and floor, and making resin cutting discs, coated grinding tools, abrasive belts, thousand impellers, fiber wheels and polishing wax.

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