The roots vacuum pump - in the metallurgical industry

metallurgy is extracted from mineral metal or metal compounds, and use all kinds of processing methods to metal has a certain performance of the process of metal materials. Metallurgical industry refers to the mining, the choice and sintered metal ore and its smelting into metal materials industry. Since the establishment and development of metallurgical industry, people have been exploring ways to reduce atmospheric environment and the influence of impurities of metal smelting, but until the vacuum technology, it can fundamentally solve the problem. Metallurgical technology has made a fundamental breakthrough. This paper introduces the roots vacuum pump application in metallurgical industry.

roots vacuum pump is widely used in metallurgical industry, such as vacuum distillation, vacuum degassing, vacuum sintering, vacuum heat treatment, etc.

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 advanced science and technology, the vacuum metallurgy are increasingly used for rare metals, smelting steel and special alloys.

roots vacuum pump technology application in metallurgical industry, at 4 PM, please read carefully.

1, the roots vacuum pump in the liquid steel vacuum processing

use vacuum processing technology to improve the quality of the steel have been developed for a long time, and have been developed to deal with hundreds of tons of scale at a time. Commonly used steel vacuum processing method is as follows: 1 steel drum processing method; 2. 2 processing method of liquid steel column; 3 vacuum casting; 4 lifting process; 5 circulation processing method; Six industrial induction refining.

2, roots vacuum pump in the vacuum induction furnace

vacuum induction furnace is an important equipment of vacuum smelting. With or without a product with the forming of melting process has the problem of vacuum sintering. Sintering is the purpose of the molding blank firing preformed billet for hot forging, and ensure good malleability and ductility, to avoid in the process of hot forging products appear defects. Vacuum melting furnace is mainly used for smelting precision alloy, magnetic materials, alloy steel and high temperature materials.

3, roots vacuum pump in the vacuum arc furnace

of vacuum arc furnace and vacuum induction furnace smelting is two aspects in the development of the vacuum metallurgy at the same time. From the point of view of metallurgy, vacuum induction furnace in melting is complete. Because it promotes alloying, so relatively uniform fine ingot can be obtained. However, due to the lack of proper ceramic material, the contact between metal and ceramics could increase the oxygen content in the metal. Parallel development another smelting method, namely vacuum arc furnace.

4, roots vacuum pump in the electron beam melting furnace

electron beam melting furnace is mainly used as the release of the electron beam heat melting or alloying heat source. It is the same as the vacuum induction furnace and vacuum arc furnace. Due to the melting is expensive, therefore only used for melting refractory metal, active metal or alloy. Usually, most of metal smelting in other vacuum furnace. Need temperature and strictly prevent pollution in special occasions, sometimes using electron beam furnace for melting, refining and ingot casting, the effect is very good.