Because black silicon carbide refractories refractories do not have other common characteristics, such as high thermal conductivity, low coefficient of expansion, excellent wear resistance and virtually no reaction with the slag and other characteristics, applications in this field more widely.
2014年6月3日星期二
Black silicon carbide Introduction
Silicon carbide is divided into black and green silicon carbide. Silicon carbide, also known as Moissanite. In The use of steel fibers contemporary C, N, B and other non-oxide refractory materials in high-tech, silicon carbide is the most widely used and most economical one. Can be called emery or refractory sand. Where: Black silicon carbide is quartz sand, petroleum coke and quality silica as the main raw material, smelting electric arc furnace. Its hardness between corundum and diamond, corundum higher Fused zirconia mullite mechanical strength, brittle and sharp. Silicon carbide, metallic luster, containing more than SiC 95%, greater than the intensity of green silicon carbide, but lower hardness, is mainly used for grinding cast iron and non-metallic materials
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