Since the 80 s, vacuum heat treatment technologies are rapidly developing in our country, the introduction of advanced equipment, vacuum heat treatment (pit type furnace heat treatment of workpiece hardness testing method) technology application is becoming more and more widely.
High pressure gas quenching process, vacuum carburizing technology, vacuum sintering, vacuum brazing, vacuum ion carburizing (n, metal) technology research and application of started, vacuum heat treatment technology start from studies and a small amount of production to industrial production field.
With the progress of technology, entering the 90 s, vacuum heat treatment technology appeared a lot of new technology and new characteristics of high pressure gas quenching and application of high pressure gas quenching vacuum heating and rapid cooling technology, hot air circulation tempering vacuum cleaning technology, vacuum heat treatment equipment and process of intelligent control system, the vacuum nitriding technology, vacuum ion carburizing technology to flourish, such as in the United States, Germany, France, Japan, Britain and other countries is becoming a hot spot of new technology development. Tracking the international advanced technology in this field in our country, combined with national conditions, and actively research and development of our country's new technology wood equipment of vacuum heat treatment, such as high pressure gas quenching process, vacuum tempering hot air circulation fast cooling technology, continuous vacuum heat treatment process and vacuum carburizing, vacuum nitriding process, etc. In vacuum cleaning technology, vacuum heat treatment process and high temperature heat treatment fields such as intelligent control system is to research the exploration and development of industrial application test, the development of the vacuum heat treatment process at the end of the hing, bright prospects.
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