Black corundum powder
Main particle size model:JIS240-JIS4000
F220-F1200
P220-P2500
W63-W3.5

Black fused alumina, also known as low-aluminum corundum or green fused alumina, is a gray-black crystal with a-Al2O3 and iron spinel as the main ore phase, which is obtained by melting aluminum-vanadium in an electric arc furnace. The content of Al2O3 is low, and a certain amount of Fe2O3 exists, so it has the characteristics of moderate hardness, high toughness, high temperature resistance and stable thermal properties. Used for free grinding. For example, the grinding machine before the plating of the product is mainly used for polishing and sand blasting of stainless steel, metal products, optical glass, bamboo and wood products, and is also a novel abrasive for manufacturing resin grinding wheels, cutting sheets and abrasive cloths.

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