The information of Ferric silicon

Ferric silicon 
(1) used as a deoxidizer and alloying agent in the steel industry. In order to obtain the chemical composition of qualified steel and guarantee the quality of the steel must be carried out in the final stages of the steelmaking deoxidation, silicon, and oxygen chemical affinity between, and thus ferrosilicon(Ferric silicon) steelmaking strong deoxidizer for sedimentation and diffusion deoxidation. Add a certain amount of silicon in the steel, can significantly improve the steel strength, hardness and elasticity, so the smelting structural steel (Si 0.40-1.75%), tool steel (including SiO.30-1.8%), spring steel ( containing SiO.40-2.8%) and transformers using silicon (Si 2.81-4.8%), the ferrosilicon as an alloying agent. While improving the inclusion morphology to reduce the element content of the gas in the liquid steel is to improve steel quality, reducing costs, saving iron technology. Especially suitable for continuous casting of molten steel deoxidation requirements, practice has proved to the ferrosilicon not only meet the steelmaking deoxidation requirements, also has the desulfurization performance with the advantages of major penetrating power. In addition, in the steel industry, the use of ferrosilicon powder high temperature en burning can release a lot of heat this feature, often as ingot cap heating agent to improve the quality and recovery of the ingot.
(2) used as the iron industry gave birth to the agent and nodulizer. Cast iron is an important modern industrial metal materials, it is cheaper than steel, easy to melt smelting, with excellent casting and much better than steel seismic capacity. Ductile iron, the mechanical properties at or near the mechanical properties of steel. A certain amount of ferro-silicon in cast iron to prevent the formation of iron carbide, and promote the precipitation of graphite and ball, and thus in ductile iron production, ferrosilicon is an important inoculant (to help the precipitation of graphite) and nodulizer .
(3) used as a reducing agent in the ferroalloy production. Chemical affinity between not only silicon and oxygen, low carbon content and high silicon ferrosilicon. Therefore, the high-silicon ferrosilicon (or silicon alloys) is commonly used as a reductant in the production of low-carbon iron alloy in the ferroalloy industry.
(4) 75 # ferrosilicon Pidgeon magnesium often used for high-temperature smelting process of magnesium metal, magnesium replacement CaO.MgO out, every ton of metal magnesium is necessary to consume about 1.2 tons of ferrosilicon, plays a big role for magnesium metal production.
(5) use in other areas. Pulverized or atomized ferrosilicon powder, processed and can be used as the suspended phase in the mineral processing industry. In the electrode manufacturing can be used as electrode coatings. Can be used in the manufacture of silicone products such as high silicon ferro-silicon in the chemical industry.
In these applications, the steel industry, foundry industry and ferroalloy industry is the largest user of ferrosilicon. They are consuming a total of more than about 90% ferrosilicon. Currently the most widely used in various grades of ferrosilicon, 75% ferrosilicon. In the steel industry, each producing 1t of steel is about to consume ferrosilicon of 3-5kg75%.
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