六十年代以后,真空热处理技术随着宇航及电子计算机工业等的迫切需要而得到了迅速的发展。美国的I·Hayes公司首先研制出气冷、油冷式淬火炉。到了七十年代由于石墨材料的使用,促使真空热处理炉可以与控制气氛热处理炉相竞争。真空热处理炉无论在所具有的优点上,还是在应用上都说明它是一种先进并很有发展前途的热处理设备。 After the 1960s, the vacuum heat treatment technology has been rapidly developed with the urgent needs of the aerospace and computer industries. American Hayes company first developed gas-cooled, oil-cooled quenching furnace. By the 1970s, due to the use of graphite materials, vacuum heat treatment furnaces were able to compete with controlled atmosphere heat treatment furnaces. Vacuum heat treatment furnace in terms of its advantages, or in the application shows that it is an advanced and very promising heat treatment equipment.