Dec 22, 2023 Leave a message

Steelmaking and ironmaking all depend on it, and the small amount of ferrosilicon plays a big role

Ferro Sillion Alloy

 

Why is ferrosilicon essential in steelmaking?

Due to the strong affinity between silicon and oxygen, when ferrosilicon is added to steelmaking, the following deoxidation reaction occurs:

2FeO+Si=2Fe+SiO₂

Silica is the product of deoxidation. It is lighter than molten steel. It floats on the surface of the steel and enters the slag, thereby removing the oxygen in the steel. It can significantly improve the strength, hardness and elasticity of the steel, increase the magnetic permeability of the steel, and reduce the Hysteresis losses in transformer steel.

 

Ferro Silicon Aluminum

 Ferro Silicon Aluminum

 

What other uses are there for ferrosilicon?

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

2. Ferrosilicon is added as a reducing agent when smelting certain ferroalloy products;

3. Due to the important physical properties of silicon such as low electrical conductivity, poor thermal conductivity and strong magnetic conductivity, ferrosilicon is also used as an alloying agent in making silicon steel.

 

Ferro Silicon 75

Ferro Silicon

 

4. Ferrosilicon is often used in the high-temperature smelting process of magnesium metal in the Pidgeon process.

5. Use in other aspects. Ground or atomized ferrosilicon powder can be used as a suspended phase in the mineral processing industry. It can be used as a coating for welding rods in the welding rod manufacturing industry. High-silicon ferrosilicon is used in the chemical industry to make products such as silicone.

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