Features and Uses of VD Vacuum Induction Furnace

 

VD vacuum induction furnace is a kind of equipment used for vacuum refining of molten steel. It has vacuum degassing, decarburization and refining functions, which can effectively remove impurities in molten steel and improve the quality of steel. 

It is commonly used in the production of stainless steel, manganese steel and ultra-low carbon alloy steel. Its characteristics include the use of a three-phase industrial frequency stirring power supply system to make the liquid alloy composition more uniform, while being able to produce high-quality alloy materials.

It can handle 5 tons to 300 tons of molten steel, and the structural forms include tank cover type and tank car type. While the VD furnace passes through the vacuum environment, the VOD type vacuum ladle refining furnace also has the functions of decarburization, deoxidation, and dehydrogenation.

Characteristics of Vacuum Induction Furnace

The vacuum induction furnaces is mainly used for vacuum refining and has good degassing and deoxidation effects. It can reduce the hydrogen and nitrogen content in steel and remove oxygen through carbon-oxygen reaction. In addition, it can also desulfurize.

This type of furnace is developed on the basis of ordinary induction furnaces and can be used for smelting, sintering, brazing and heat penetration. The details are as follows:

1. Vacuum degassing & purification

The VD furnace degasses the molten steel under vacuum, effectively removing gases such as hydrogen and nitrogen and inclusions, and significantly improving the purity of the molten steel. By blowing argon at the bottom to stir, the composition is homogenized and the reaction kinetics conditions are optimized.

2. Precise composition control

The alloy element content can be flexibly adjusted, which is suitable for the production of high value-added steels such as ultra-low carbon steel and silicon steel. 

For example, the chemical composition can be fine-tuned through wire feeding technology to achieve precise alloying.

3. Efficient energy utilization

Compared with traditional electric furnaces, VD furnaces reduce oxidation losses under vacuum conditions, have higher energy utilization, and can achieve rapid degassing without additional heating.

4. Strong adaptability

It can process a variety of steel types, including alloy structural steel, high-quality carbon steel, low-alloy high-strength steel, etc., to meet different industrial needs.

Uses of VD Vacuum Induction Furnaces

1. High-end steel production

VD induction furnaces are mainly used to produce high-purity steels such as bearing steel, gear steel, silicon steel soft magnetic materials, etc., to improve material performance and service life.

2. Secondary refining

Vacuum treatment of the primary steel from the converter or electric furnace to further reduce carbon, desulfurize, remove inclusions, and improve the quality of the steel.

3. Development of special steel grades

The vacuum induction furnace is suitable for the production of special steels such as ultra-low carbon steel and nitride-controlled steel to meet the needs of high-end fields such as aerospace and automobile manufacturing.

4. Resource recycling

Precious alloy materials (such as nickel-based alloys and high-alloy stainless steel) can be recycled to reduce production costs.

The above is part of the content about the characteristics and uses of the VD vacuum induction furnace for your reference. Please feel free to supplement and contact us to provide you with solutions.

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