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The role of ferrosilicon in steelmaking and other areas

• Monday, September 30, 2019
• Source:ferro-alloys.com

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• Keywords:ferrosilicon, steelmaking, cast iron, foundry industry, ferroalloy

[Ferro-Alloys.com] The steelmaking industry, the foundry industry and the ferroalloy industry are the largest users of ferrosilicon. They consume more than 90% of ferrosilicon.

 

1. The role of ferrosilicon in steelmaking.

 

Used as a deoxidizer and alloying agent in the steel industry.

 

In order to obtain a chemically qualified steel and to ensure the quality of the steel, deoxidation must be carried out in the final stage of steelmaking. The chemical affinity between silicon and oxygen is large. Therefore, ferrosilicon is a strong deoxidizer for steel making. It is used for precipitation and diffusion deoxidation.

 

2. The role of ferrosilicon in cast iron.

 

Used as an inoculant and spheroidizing agent in the cast iron industry.

 

Cast iron is an important metal material in modern industry. It is cheaper than steel. And easy to melt and smelt.

 

Cast iron has excellent casting properties and much better seismic performance than steel. The addition of a certain amount of ferrosilicon to the cast iron prevents the formation of carbides in the iron and promotes the precipitation and spheroidization of the graphite.

 

Therefore, ferrosilicon is an important inoculant and spheroidizing agent in the production of ductile iron.

 

3. The role of ferrosilicon in the production of ferroalloys.

 

Can be used as a reducing agent in the production of ferroalloys.

 

The chemical affinity between silicon and oxygen is very large. Moreover, the high silicon ferrosilicon has a very low carbon content. Therefore, high silicon ferrosilicon is a reducing agent commonly used in the production of low carbon iron alloys.

 

4. The use of ferrosilicon in other areas.

 

The finely or atomized treated ferrosilicon powder can be used as a suspension phase in the beneficiation industry. It can be used as a coating for welding rods in the electrode manufacturing industry. High silicon ferrosilicon can be used in the chemical industry to make products such as silicone. (wanhua)

 

 

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• [Editor:kangmingfei]