What is ferrosilicon used for? What kind of material is ferrosilicon

1) Used as deoxidizer and alloying agent in steelmaking industry. In order to obtain chemically qualified steel and ensure the quality of steel, deoxidation must be carried out in the final stage of steelmaking, and the chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer for precipitation and diffusion deoxidation in steelmaking. Adding a certain amount of silicon to the steel can significantly improve the strength, hardness and elasticity of the steel, so ferrosilicon is also used as an alloying agent in the smelting of structural steel (silicon-containing tool steel, including spring steel, including silicon steel for transformers, and silicon-containing silicon).

At the same time, improving the form of inclusions and reducing the content of gas elements in molten steel is an effective new technology to improve steel quality, reduce costs and save iron. It is especially suitable for the deoxidation requirements of continuous casting molten steel, and practice has proved that ferrosilicon not only meets the deoxidation requirements of steelmaking, but also has the advantages of desulfurization performance and specific gravity and strong penetration. In addition, in the steelmaking industry, the use of ferrosilicon powder at high temperature can release a large amount of heat, often used as a steel ingot cap heating agent to improve the quality and rate of steel ingots.

2) Used as inoculant and nodularizing agent in the cast iron industry. Cast iron is an important metal material in modern industry, it is cheaper than steel, easy to melt and smelt, has excellent casting performance and much better seismic resistance than steel. In particular, the mechanical properties of ductile iron are at or near those of steel.

Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbides in iron and promote the precipitation and nodularization of graphite, so in the production of ductile iron, ferrosilicon is an important inoculant (to help precipitate graphite) and nodularizing agent.

3) It is used as a reducing agent in the production of ferroalloys. Not only is there a great chemical affinity between silicon and oxygen, but also the carbon content of high-silicon ferrosilicon is very low. Therefore, high-silicon ferrosilicon (or siliceous alloy) is a reducing agent commonly used in the production of low-carbon ferroalloys in the ferroalloy industry.

Ferrosilicon is often used in the high-temperature smelting process of magnesium metal in the Pijiang magnesium smelting process, and the magnesium in it is replaced, and about tons of ferrosilicon are consumed for every ton of magnesium metal produced, which plays a great role in the production of magnesium metal.

5) Other uses. Finely ground or atomized ferrosilicon powder can be used as a suspended phase in the beneficiation industry. It can be used as a coating for welding rods in the welding electrode manufacturing industry. High-silicon ferrosilicon can be used in the chemical industry to make products such as silicone.

Among these applications, the steelmaking industry, the foundry industry, and the ferroalloy industry are the largest users of ferrosilicon. Together, they consume more than 90% of ferrosilicon. Among the various grades of ferrosilicon, the most widely used is 75% ferrosilicon.

In the steelmaking industry, about 3-5kg of 75% ferrosilicon is consumed for every 1t of steel produced.

Thanks, hope--

1.It is used as a deoxidizer and alloying agent in the steelmaking industry.

2.It is used as inoculant and nodularizing agent in the cast iron industry.

3.It is used as a reducing agent in the production of ferroalloys. Hope.

Ferrosilicon is a ferroalloy composed of iron and silicon.

Ferrosilicon is an iron-silicon alloy made by smelting coke, steel scraps, quartz (or silica) as raw materials and using an electric furnace. Because silicon and oxygen are easy to synthesize silica, ferrosilicon is often used as a deoxidizer in steelmaking, and because SiO2 releases a large amount of heat when it is generated, it is also beneficial to increase the temperature of molten steel while deoxidizing.

Ferrosilicon is an indispensable deoxidizer in the 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 the steel can significantly improve the strength, hardness and elasticity of the steel, increase the permeability of the steel, and reduce the hysteresis loss of the transformer steel.

High-silicon ferrosilicon or siliceous alloys are used in the ferroalloy industry as a reducing agent in the production of low-carbon ferroalloys. Ferrosilicon can be used as an inoculant for ductile iron when added to cast iron, and can prevent the formation of carbides, promote the precipitation and nodularization of graphite, and improve the properties of cast iron.

In addition, ferrosilicon powder can be used as a suspended phase in the mineral processing industry and as a coating for welding rods in the electrode manufacturing industry; High silicon ferrosilicon can be used to prepare semiconductor pure silicon in the electrical industry, and can be used to make silicone in the chemical industry.

The above content reference: Encyclopedia - Ferrosilicon.

Hello, ferrosilicon is used as a deoxidizer in steelmaking, because silicon and oxygen are easy to synthesize silica, so ferrosilicon is often used as an deoxidizer in steelmaking. Ferrosilicon can also be used as an alloying element additive, which is widely used in low-alloy structural steel, spring steel, bearing steel, heat-resistant steel and electrical silicon steel.

1. Ferrosilicon is very common in the steelmaking industry, ferrosilicon is mainly used as a deoxidation set and alloying agent, there is a procedure in the process of deoxidation, because silicon and oxygen have a very large affinity, so ferrosilicon is used as a deoxidizer, so that the steel is trained.

2. In the cast iron industry, it is used as inoculant and nodularizing agent, ferrosilicon plays an important role in it, and some ferrosilicon can be added directly in the process of casting iron, which can effectively prevent iron from forming carbides, and can also effectively help graphite nodularization.

3. When making welding rods, it can be used as a coating for welding rods.