Metal silicon powder is widely used in refractory, metallurgy industry, is a good antioxidant.The addition of metallic silicon powder to refractory materials can first react with oxygen to form a new ore phase to close pores, improve density, prevent the penetration of slag iron, in order to improve the product's resistance to high temperature, wear and oxidation.Therefore, metal silicon powder is widely used in steel furnaces, kilns, kilns and other refractory materials.In metallurgical casting industry, metal silicon powder is used as non-ferrous alloy additive and silicon steel alloy agent to improve the hardenability of steel.It can also be used as a reducing agent for some metals, for new ceramic alloys, etc.