Ferrosilicon powder is an iron alloy composed of silicon and iron, and then ground into a powdery substance, which is used as a deoxidizer for steelmaking and ironmaking.

In the steelmaking industry, in order to obtain steel with qualified chemical composition and ensure the quality of steel, deoxidation must be carried out in the later stage of steelmaking. The chemical affinity between silicon and oxygen in ferrosilicon powder is very large, so ferrosilicon powder It is a strong deoxidizer in steelmaking for precipitation and diffusion deoxidation. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of steel.

In the process of ferroalloy production, ferrosilicon powder not only has a high chemical affinity between silicon and oxygen, but also has a very low carbon content in high-silicon ferrosilicon powder. Therefore, high-silicon ferrosilicon powder (or siliceous alloy) is a commonly used reducing agent in the production of low-carbon ferroalloys in the ferroalloy industry.

Cast iron is an important metal material in modern industry. It is cheaper than steel, easy to melt and smelt, and has excellent casting properties and much better shock resistance than steel. In particular, ductile iron, its mechanical properties are at or close to those of steel. Adding a certain amount of ferrosilicon powder to cast iron can prevent the formation of carbides in iron and promote the precipitation and spheroidization of graphite. Therefore, in the production of ductile iron, ferrosilicon is an important inoculant (helping to precipitate graphite) and spheroidization. agent.