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Low pressure carburizing furnace treatment technology
Low pressure vacuum carburizing furnace heat treatment is a new environmental friendly technology, has been widely used in Europe and the United States and other developed countries, its characteristics such as energy saving, material saving, environmental protection has been widely recognized, is one of the main development direction of heat treatment technology. Especially compared to the traditional heat treatment method, low pressure vacuum carburizing furnace heat treatment without oxidation and decarburization and the advantages of little distortion and its parts processing precision and service life are improved greatly, therefore the domestic since the 1990 s in the domestic aerospace, automobile industry, ship weapons, military industry, electronics, mold and other industry application is more and more widely.
The advent of low-pressure carburizing furnace technology makes it possible to achieve high temperature and rapid carburizing. The technology of vacuum high temperature and low pressure carburizing furnace adopts acetylene gas as carburizing medium, and the low carburizing pressure of 150 ~ 3000Pa is used to carry out the pulse carburizing. High temperature and low pressure vacuum carburizing and environmentally friendly, and can realize high temperature carburizing, increase the speed of carburizing, grain boundary to avoid oxidation layer, permeability layer is easy to control, can the advantages of complex shape parts carburized high temperature and low pressure vacuum carburizing furnace technology advanced specific displays in:
1. High working temperature. The normal work of the high temperature and low pressure vacuum carburizing furnace temperature can reach 1300 ℃. Therefore, the basic conditions for high temperature and fast carburizing are met.
2. Thoroughly solve the problem of crystal boundary oxidation layer and improve the quality of carburizing.