INTRODUCTION

Silicon carbide (sic) deoxidizer is a new type of strong composite deoxidizer, which replaces the traditional silicon powder and carbon powder for deoxidization. Compared with the original process, it has more stable physical and chemical properties, good deoxidization effect, shortened deoxidization time, saved energy, improved steelmaking efficiency, improved quality, reduced raw and auxiliary material consumption, reduced environmental pollution, improved working conditions, and improved comprehensive economic benefits of electric furnace, Silicon carbide has stable chemical properties, high thermal conductivity, small thermal expansion coefficient, and good wear resistance. Besides being used as abrasive, it has many other uses. For example, coating silicon carbide powder on the inner wall of the turbine impeller or cylinder body with a special process can improve its wear resistance and extend its service life by 1 to 2 times; The high-grade refractory material made of it has the advantages of heat shock resistance, small size, light weight, high strength and good energy saving effect. Low grade silicon carbide (containing about 85% SiC) is a deoxidizer for *************. It can speed up steelmaking, facilitate the control of chemical composition and improve the quality of steel. In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements