航空航天部首都机械厂从第五个五年计划期间开始吸收消化研制真空热处理设备,由单一品种的单室真空淬火炉,发展到现在的几个系列二十多种型号的真空炉。现在,真空热处理设备已是该厂的主要支柱民品之一,基本上满足了国内需求,替代了进口产 The Capital Machinery Plant of the Ministry of Aeronautics and Astronautics began absorbing and digesting vacuum heat treatment equipment from the fifth five-year plan period, and developed from a single-chamber single-chamber vacuum quenching furnace to the current series of more than twenty models of vacuum furnaces. Vacuum heat treatment equipment is now one of the main pillars of the plant. It basically meets domestic demand and replaces imported products.