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Vacuum heat treatment furnace that vacuum technology and heat treatment of two professional combination of technology, refers to the heat treatment process and the whole part of the vacuum in the state. China will be divided into low vacuum, medium and high vacuum. At present, most of the vacuum heat treatment furnace work vacuum in the 1.33 ~ 1.33 × 10 ^ 3Pa.
Vacuum heat treatment can achieve almost all heat treatment process, such as quenching, annealing, tempering, carburizing, nitriding, quenching process can be achieved gas quenching, oil quenching, nitric acid quenching, water quenching, etc., can also be vacuum brazing, Sintering, surface treatment and so on. Vacuum heat treatment furnace high thermal efficiency, can achieve rapid heating and cooling, can be achieved without oxidation, no decarburization, no carburizing, can remove the surface of the work of the chip, and degreasing degassing and other effects, so as to achieve the effect of bright surface purification.
In general, the workpiece is processed in the furnace heating slowly, the heat temperature difference is small, thermal stress is small, and thus small deformation. Product pass rate is high. Can reduce costs, have the role of degassing, thereby improving the mechanical performance and service life. Good working environment, safe operation, no pollution and pollution. The treated workpiece is free of hydrogen embrittlement, and the stability and reproducibility of the titanium and the refractory metal shell are prevented from hydrogen embrittlement and vacuum heat treatment. The advantages of this series, the development of vacuum heat treatment equipment and processes are increasingly valued and applied more and more widely.