1.Black silicon cabride is produced at high temperature in an electric resistancetype furnace with quarts sand and petroleum coke as its main raw materials.Its hardness is between fused alumina and synthetic diamond.Mechanical intensity of it is higher than fused alumina.It is brittle and sharp and has electrical and heat conductivity in some degree. 2.White fused aluminium oxide is electrically fused in the furnace with high-grade alumina powder as raw material.It has higher hardness and slightly lower toughness than brown fused aluminium oxide, characterized by its high purity, strong grinding ability, Abrasive tools made of it are suitable for grinding highspeed steel, high carton steel, etc.It also can used as materials for grinding and polishing precision-casting, spraying and coating, medium body for chemical industry, special ceramics and high-grade refractory materials, etc.
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ZYR ABRASIVES CO., LTD
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