Calcium Silicon Alloy Strength, Hardness And Elasticity
(1) Used as a deoxidizer and a gold alloy in the steelmaking industry. In order to obtain chemical composition of qualified steel and to ensure the quality of steel,Calcium Silicon Alloy in the final stage of steelmaking must be deoxidized, silicon and oxygen between the chemical affinity is large, so ferrosilicon is a strong steel oxide for precipitation and diffusion deoxidation. In the steel to add a certain number of silicon, can significantly improve the strength of steel, hardness and flexibility, and thus in the smelting structural steel (silicon 0.40-1.75%),Calcium Silicon Alloy tool steel (containing SiO.30-1.8%), spring steel Containing SiO00-2-8%) and silicon steel for transformers (2.81-4.8% silicon), ferrosilicon is also used as a gold alloy.
In addition, in the steel industry, the use of ferrosilicon powder burning at high temperatures can release a lot of heat this feature, often used as a steel ingot heating agent to improve the quality and recovery of ingots.
(2) Used as inoculants and nodulizers in the cast iron industry. Cast iron is an important metal material in the modern industry, it is cheaper than steel,Calcium Silicon Alloy easy to melt smelting, with excellent casting performance and much better than the steel engage in seismic capacity, especially ductile iron, its mechanical properties to reach or close to the steel Mechanical behavior. The addition of a certain amount of ferrosilicon in the cast iron can prevent the formation of carbides in the iron and promote the precipitation and spheroidization of the graphite. Thus, in the production of ductile iron, ferrosilicon is an important inoculant (to help the precipitation of graphite) and spheroidization Agent.
(3) iron as a reducing agent. Not only between the silicon and oxygen chemical affinity is very large, and high silicon ferrosilicon carbon content is very low. Therefore,Calcium Silicon Alloy high-silicon ferrosilicon (or siliceous alloy) is a ferroalloy industry in the production of low-carbon ferroalloy is more commonly used as a reducing agent.
(4) the use of other aspects. The finely divided or atomized ferrosilicon powder can be used as a suspension phase in the beneficiation industry. In the electrode manufacturing industry can be used as electrode coating. High silicon ferrosilicon in the chemical industry can be used to manufacture silicone and other products.
In these applications, the steelmaking industry,Calcium Silicon Alloy the foundry industry and the ferroalloy industry are the largest users of ferrosilicon. They consume about 90% more ferrosilicon. Among the various grades of ferrosilicon, the most widely used is 75% ferrosilicon. In the steel industry, each production of 1t steel consumption of about 3-5kg75% ferrosilicon.