Ferrosilicon powder is processed from ferrosilicon. It is mainly used in the late stage of the smelting processes such as steelmaking, steel casting, and foundry. It is used as a diffusion deoxidizer and inoculant. The commonly used size is 0-3mm. It can be used as a suspension phase in the industry, and can also be used as a reducing agent in the smelting of molybdenum, titanium, tungsten, magnesium, and other alloys. The specification is generally between 80-200 mesh.
The Function of ferrosilicon powder:
1. Ferrosilicon powder is often used as a 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 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 for steelmaking and is used for precipitation and diffusion deoxidation. Adding a certain amount of silicon to steel can significantly improve the strength, hardness, and elasticity of steel.
2. Ferrosilicon powder can be used as a reducing agent in the production process of ferroalloy
Ferrosilicon powder not only has a great chemical affinity between silicon and oxygen in the production process of ferroalloy but also has a very low carbon content in high-silicon ferrosilicon powder. Therefore, high-silicon FeSi powder (or silicon alloy) is a reducing agent commonly used in the production of low-carbon ferroalloys in the ferroalloy industry.
3. Ferrosilicon powder in the cast iron industry is often used as an inoculant and nodulizer
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 has much better shock resistance than steel. Especially for ductile iron, its mechanical properties are at or close to those of steel. Adding a certain amount of FeSi 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, Ferro silicon alloy is an important inoculant (to help precipitate graphite) and spheroidization agent.
The smelting process of ferroalloy ferrosilicon powder:
Continuous smelting in an electric furnaces, furnace materials are added in batches in batches, iron is poured intermittently, and iron slag co-flows. The chemical affinity between silicon and oxygen is very large, and the carbon content of high-silicon ferrosilicon powder is very low, so high-silicon ferrosilicon powder is a kind of reducing agent in the production of low-carbon ferroalloys in the ferroalloy industry. In addition, ferrosilicon powder that has been ground or atomized can be used as a suspension phase in the mining industry, and ferrosilicon powder can also be used in the welding rod manufacturing industry as a coating for welding rods. , High-silicon ferrosilicon powder can be used in the chemical industry to manufacture silicone and other products. In addition, adding a certain amount of ferrosilicon powder and metallurgical materials when casting iron can prevent the formation of carbides in iron and effectively promote the precipitation and spheroidization of graphite. Therefore, in the production of ductile iron, ferrosilicon powder is a relatively important inoculant and nodulizer. In addition to these, in the iron and steel industry, ferrosilicon powder is often used as a heating agent for steel ingot caps because of the fact that ferrosilicon powder can release a large amount of heat when it is burned at a high temperature. It can effectively improve the quality and recovery rate of steel ingots. Different alloy materials have different functions, and you should purchase them according to your own needs when choosing. If you have any questions or needs about alloy materials, please contact us at any time.