Working characteristics of vacuum atmosphere furnace

Vacuum atmosphere furnace is a comprehensive technology that combines vacuum technology and heat treatment. It means that all and part of the heat treatment process is carried out in a vacuum state. my country divides vacuum into low, medium, high and ultra-high vacuum. At present, the working vacuum of most atmosphere furnaces is 1.33~1.33×10ˉ3Pa.

The vacuum atmosphere furnace can almost realize all heat treatment processes, such as quenching, annealing, tempering, carburizing and nitriding. In the quenching process, it can realize gas quenching, oil quenching, nitrate quenching, water quenching, etc., as well as vacuum brazing. , Sintering, surface treatment, etc.

The furnace has high thermal efficiency, can realize rapid heating and cooling, can achieve no oxidation, no decarburization, no carburization, can remove the phosphorus chips on the surface of the workpiece, and has the functions of degreasing and degassing, so as to achieve the effect of surface bright purification. Generally speaking, the processed workpiece is heated slowly in the vacuum atmosphere furnace, the internal heat temperature difference is small, the thermal stress is small, and the deformation is small.

At the same time, the qualified rate of vacuum atmosphere furnace products is high. It can reduce costs and has a degassing effect, thereby improving the mechanical performance and service life of the work. The working environment is good, the operation is safe, and there is no pollution and pollution. There is no risk of hydrogen embrittlement for the processed workpiece, and the surface hydrogen embrittlement is prevented for titanium and refractory metal shells, and the stability and repeatability of the atmosphere furnace process are good. With this series of advantages, the development of atmosphere furnace equipment and technology has been paid more and more attention and more and more widely used.