The role of high carbon ferro manganese in steelmaking process

High carbon ferro manganese is an alloy composed of manganese and iron elements, is a very important metallurgical raw materials in the casting process, its chemical composition is mainly Mn, Si and C elements, of which the content of Mn is generally between 65-90%, C content between 7.0-8.0%.

The appearance of high-carbon ferro manganese is generally a bright metallic luster, without powder or slag inclusion, which allows high-carbon ferro manganese to be accurately controlled and applied in the production process.

In addition, high-carbon ferro mangane also has a high melting point and oxidation resistance, but also an important deoxidizer and alloy additive, in the steel, casting and electronics industry and other fields have a wide range of applications.

Properties of high carbon ferro manganese

High carbon ferro manganese is a kind of alloy material with various properties

1. High carbon ferro manganese has high strength and wear resistance. Because it contains a high proportion of manganese, it can increase the hardness and strength of iron, can make high-carbon ferro manganese become a very strong alloy material, can withstand high temperature, high pressure and high load working environment, while maintaining long-term stability, in addition, the wear resistance of high-carbon ferro manganese is also very good, can effectively prevent the wear and consumption of parts. Thus prolong the service life of the equipment.
2. High carbon ferro manganese has good corrosion resistance and can maintain its stability and durability in harsh environments.

Use of high carbon ferro manganese

1. In the iron and steel metallurgy industry, high-carbon ferro mangane is widely used as a deoxidizer and a silicon-manganese alloy additive. It can effectively reduce the content of other impurity elements and improve the mechanical properties and corrosion resistance of steel products. At the same time, the addition of manganese alloy can also improve the cleanliness and tensile strength of steel and prevent steel products from cracking and other quality problems.

2. High carbon ferro manganese also has important applications in the casting industry, which can be used to produce ductile iron, white cast iron and other alloy castings.

3. In the electronics industry and chemical industry, high-carbon ferro manganese is also a very important raw material. It can be used as a raw material for the production of semiconductor materials and chemical additives, among which high-carbon ferro manganese added with silicon is one of the main raw materials for the preparation of electronic grade silicon.

High carbon ferro manganese production method

The production methods of high carbon ferro manganese mainly include blast furnace method and electric furnace method.

The production of high carbon ferro manganese by blast furnace method began in 1875 and has a history of more than 100 years. China began to use blast furnace to produce ferro manganese in 1949. Blast furnace method is an early method used in the production of high carbon ferromanganese. High carbon ferromanganese was produced by blast furnace using coke as reducing agent and heat source, dolomite or limestone as flux. However, because the coke in the composition of the blast furnace smelting charge is 5 to 6 times that of the electric furnace smelting, more phosphorus is transferred into the alloy in the coke, and the furnace temperature is lower in the blast furnace smelting, so the volatile amount of phosphorus in the smelting process is about 10% lower than that of the electric furnace.

The high carbon ferro manganese produced by electric furnace method has less impurity content of silicon, phosphorus and sulfur.

High carbon ferro manganese can be used as an alloy additive in the steelmaking process, the main role is to improve the manganese content in molten steel, promote the carburizing effect in molten steel, so that the carbon content in molten steel uniform distribution, so as to improve the quality of steel, improve the mechanical properties and corrosion resistance of steel. At the same time, the high carbon ferro manganese can also eliminate the inclusion produced in the process of steelmaking and improve the quality of molten steel.

What role does high carbon ferro manganese play in steelmaking

The application in steelmaking is mainly reflected in the following aspects

1. Improve the purity of molten steel

The manganese element in high carbon ferro manganese can reduce the oxygen activity in molten steel, thereby reducing the oxide content in molten steel and improving the purity of molten steel.

2. Increase the strength and hardness of steel

The carbon element in high-carbon ferro manganese can improve the strength and hardness of steel, and the manganese element can also enhance the strength and hardness of steel.

3. Improve the corrosion resistance of steel

The manganese element in high carbon ferro manganese can improve the corrosion resistance of steel, especially the corrosion resistance of sulfuric acid, nitric acid and other acids.

4. Improve the overall performance of steel

The manganese element in high carbon ferro manganese can improve the comprehensive properties of steel, including toughness, fatigue resistance and so on.

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