atmosphere furnace and vacuum furnace difference between

The difference between the atmosphere furnace and the vacuum furnace is that the vacuum heat treatment skill is a comprehensive skill connected with the heat treatment skill and the vacuum heat treatment skill, which is carried out in the vacuum form in full and part of the heat treatment process. China divides vacuum into four types: low, medium, high and ultra-high vacuum. At present, the task vacuum degree of most medium frequency vacuum heat treatment furnaces is 1.33 ~ 1.33 × 10-3pa.

The difference between atmosphere furnace and vacuum furnace is that vacuum heat treatment can complete almost all heat treatment processes, such as quenching, annealing, tempering, carburizing, nitriding, air quenching, oil quenching, nitrate quenching, water quenching, etc., and vacuum brazing, sintering, surface treatment, etc. The difference between the atmosphere furnace and the vacuum furnace is also that the heat efficiency of the vacuum heat treatment furnace is high, it can achieve rapid leveling and cooling, it can complete no oxidation, no decarburization, no carburization, it can remove the phosphorus chips on the surface of the workpiece, and it has the effect of degreasing and degassing, and then it can reach the result of surface bright purification. The difference between atmosphere furnace and vacuum furnace is that, generally speaking, the workpiece to be disposed is heated slowly in the vacuum induction furnace, the internal temperature difference is small, the thermal stress is small, so the deformation is small. The qualified rate of products is high. It can reduce cost, have degassing effect, and then improve the mechanical function and service life of the task. Good task, safe operation, no pollution and public hazards. There is no risk of hydrogen embrittlement in the workpieces to be disposed, and hydrogen embrittlement on the surface of titanium and refractory metal shell is avoided. The vacuum heat treatment process has good invariability and repeatability. This series of advantages, the development of vacuum heat treatment equipment and technology has been more and more attention and use more and more widely. The above is the difference between atmosphere furnace and vacuum furnace. I hope it can help you.