Brown fused alumina, also known as corundum, is a brownish artificial corundum produced by melting and reducing bauxite, carbon materials, and iron filings in an electric arc furnace. This is why it is named as such. Brown fused alumina is a basic abrasive material, widely used due to its excellent grinding properties, broad application range, and affordability. It is primarily made from bauxite and coke (anthracite coal) through smelting in an electric arc furnace. The abrasives produced from it are suitable for grinding metals with high tensile strength, such as various carbon steels, malleable cast iron, and hard bronze, and can also be used to manufacture high-grade refractory materials. Brown fused alumina boasts good crystalline structure, strong fluidity, low linear expansion coefficient, and corrosion resistance. After being tested by dozens of refractory material producers, this product has been proven to be non-explosive, non-friable, and non-cracking during use. Particularly, its superior cost-performance ratio compared to traditional brown fused alumina makes it the ideal aggregate and filler for brown fused alumina-based refractory materials.
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