f you want to understand a variety, you can't only understand a part of it, but you want to know more. Let's talk about what ferrosilicon applications there are.
Ferrosilicon is widely used in steel industry, casting industry and other industrial production.
Ferrosilicon is an essential deoxidizer in steelmaking industry. In torch steel, ferrosilicon is used for precipitation deoxidation and diffusion deoxidation. Brick iron is also used as an alloying agent in steelmaking. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of steel, improve the permeability of steel, and reduce the hysteresis loss of transformer steel. The content of silicon is 0.15%-0.35% in general steel, 0.40%-1.75% in structural steel, 0.30%-1.80% in tool steel, 0.40%-2.80% in spring steel, 3.40%-4.00% in stainless acid-resistant steel, 1.00%-3.00% in heat-resistant steel. Silicon steel contains 2% ~ 3% silicon or higher.
High silicon ferrosilicon or siliceous alloys are used in the ferroalloy industry as reducing agents for the production of low carbon ferroalloys. Ferrosilicon added to cast iron can be used as inoculant of nodular cast iron, and can prevent carbide formation, promote graphite precipitation and spheroidization, improve the performance of cast iron.
In addition, ferrosilicon powder can be used as a suspended phase in the mineral processing industry, in the electrode manufacturing industry as electrode coating; High silicon ferrosilicon in the electrical industry can be used to prepare semiconductor pure silicon, in the chemical industry can be used to manufacture silicone and so on.
In the steelmaking industry, 3 ~ 5kg75% ferrosilicon is consumed per ton of steel produced.
Melting point: 75FeSi is 1300℃
Ferrosilicon contains a small amount of phosphorus metal compounds, such as calcium phosphide, in the vehicle transport or warehouse storage, if damp, can release phosphine, the warehouse or around the population poisoning. Phosphine poisoning can be fatal in severe cases.
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