the production process of ferrosilicon alloy
The production technology of ferrosilicon alloy is generally divided into two methods: outside furnace method and inside furnace method.
1. Outside the furnace method
Out-of-furnace method refers to the method of preparing a gaseous compound (such as silicon trichloride SiCl4) from calcium carbide or silica, and then reducing it into ferrosilicon alloy by reducing agent. This method has mature technology and high efficiency, but the process flow is complicated.
2. Furnace method
In-furnace method refers to the method of mixing siliceous raw materials (such as ferrosilicon, silicon slag, wollastonite, etc.) with iron-carrying materials and putting them into electric furnace or blast furnace to melt and reduce them into ferrosilicon alloy. This method has simple process and wide application range, but it has low thermal efficiency and slow chemical reaction rate.
the contribution of ferrosilicon alloy to the industry
Ferrosilicon alloy is not only widely used in steel and foundry industry, but also promotes the research and development and production of many new products. For example, Si-Fe-Mn-Cr-Mo alloy, silicon fiber, silica gel and other products are widely used in many fields such as chemical industry, electronics, communication and construction. At the same time, the production of ferrosilicon alloy also provides employment opportunities and economic benefits for related industries.
In a word, ferrosilicon alloy is an important alloy material, which is widely used in iron and steel industry and foundry industry. Its high strength, corrosion resistance, wear resistance and high temperature resistance make it have a wide application prospect in various fields.
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