Post by lay1014 on Mar 19, 2019 9:00:06 GMT
Vacuum test furnaces are widely used in electrical materials, magnetic materials, aircraft and rocket materials, nuclear fuel, superconducting materials melting and engine parts, forging of corrosion-resistant mechanical parts, etc. The main types of furnaces used for vacuum melting and forging are vacuum induction melting furnace, vacuum electric furnace, vacuum resistance melting furnace and so on. Its usefulness is still expanding, and it has become a new technology of vacuum heat treatment which is widely seen in China.
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Application and Function of Vacuum Experimental Furnace
The effect of vacuum in the test furnace mainly includes the following aspects:
1. Protect furnace charge from oxidation of oxygen, water vapor, carbon dioxide and other gases in the air during heating and ablation.
2. In vacuum, the solubility of gases dissolved in metals decreases to the purpose of degassing.
3. Reduce the content of some impurities in furnace guess;
4. The oxide film, nitride and hydride on the metal surface are restored, differentiated or evaporated when heated in vacuum, which can produce surface purification effect.
5. Oil contaminated during metal surface processing and transportation evaporates by itself in vacuum heating, and may differentiate into hydrogen, water and carbon dioxide, which are pumped away by vacuum pump to degrease.
Применение вакуумных печей
Вакуумная масляная закалка
Принцип вакуумной печи для термообработки