Ferrosilicon is a ferrosilicon alloy. Ferrosilicon is often used as a deoxidizer in steelmaking to increase the temperature of molten iron while deoxidizing.
(1) Used as deoxidizer and alloying agent 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 final stage of steelmaking. The chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer for steelmaking for precipitation and diffusion. deoxidation.
(2) Used as inoculant and spheroidizing agent in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel, easy to melt and smelt, has excellent casting performance and much better vibration resistance than steel. Especially ductile iron, its mechanical properties are equal to or close to those of steel. Mechanical behavior. Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbides in the 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.
(3) Used as reducing agent. Not only is the chemical affinity between silicon and oxygen very high, but the carbon content of high-silicon ferrosilicon is very low. Therefore, high-silicon ferrosilicon (or silicon alloy) is a commonly used reducing agent in the ferroalloy industry when producing low-carbon ferroalloys.
(4) Use in other aspects. Ground or atomized ferrosilicon powder can be used as a suspended phase in the mineral processing industry. It can be used as a coating for welding rods in the welding rod manufacturing industry. High-silicon ferrosilicon is used in the chemical industry to make products such as silicone
Ferrosilicon is an essential deoxidizer in the steelmaking industry and is used for precipitation deoxidation and diffusion deoxidation. , adding a certain amount of silicon to steel can also improve the strength, hardness and elasticity of steel.
