The use of the roots vacuum pump in the vacuum metallurgy _

with the improvement of material requirements, vacuum metallurgy development gradually. Vacuum metallurgy have begun reduction for non-ferrous metals, nonferrous metals and their alloys of refining and casting and some metallurgy separation of intermediate product, has become an important field of modern metallurgy. Involved in all aspects of the metallurgy. The roots vacuum pump technology is also more and more used in the metallurgical industry, its benefits more and more important. The purpose of this paper is to introduce the roots vacuum pump in the vacuum metallurgy, the application of knowledge.

vacuum metallurgy is under standard atmospheric conditions of metallurgical operations. It can be implemented in the atmosphere to metallurgical process, prevent the oxidation of the metal, separation with different boiling point substances, remove the gas or impurities in the metal, reinforced metal carbon deoxidization ability and improve the quality of metals and alloys. Vacuum metallurgy is usually used in metal smelting, refining, casting and heat treatment. With the rapid development of science and technology, the vacuum metallurgy are increasingly used for rare metals, smelting steel and special alloys.

roots vacuum pump working principle:

many former stage pump, roots vacuum pump is their vacuum pump operation, and in all industrial vacuum applications need to water pump together.

roots vacuum pump run completely without leakage, not sealed oil or other working fluid compression chamber. Roots vacuum pump is equipped with a bypass valve, need maintenance free of charge.

roots vacuum pump has a wide range of suction and extreme pressure, can be customized to become integrated the backing pump vacuum system, which enables us to customize for most industrial applications and high vacuum solutions. Efficient.

for evacuation in inflammable and explosive environment of explosive gas or process, the supercharger technology is based on mature convection cooling concept. to the roots vacuum pump running safely. Thanks to the advanced industrial design and strict testing, roots vacuum pump can satisfy the demanding of explosive application.

roots vacuum pump USES and characteristics of

1, low noise, High precision dynamic balancing)

2, used in overload protection ( Relief valve setting)

3, in a wide pressure range of large pumping speed

4, can remove high boiling point working medium ( Gas protection device Settings)

5, easy detection ( In the entry and exit with the test connector)

6, for pumping gas contained in the dust and water vapor is not sensitive to

7, small power

8, this pump is widely used in metallurgy, chemical industry, textile, electronics, electric light source industry.

roots vacuum pump in the application of vacuum metallurgy

in the process of steelmaking, if in about 20 Torr under vacuum to vacuum the molten steel, will greatly improve the quality of steel. Of liquid steel in converter steelmaking, for example, vacuum treatment can improve its quality. After dealing with the vacuum, the liquid steel can improve steel furnace in melting process, and save the consumption of ferroalloys. Therefore, the liquid steel vacuum processing technology has been widely adopted in China. With the rapid development of China's steel industry, the depth and breadth of liquid steel vacuum processing technology will gradually expand.

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