一九七七年西德爱协林公司向我国介绍了一种新气体软氮化法,即NITROC法。其主要特点是:把氨气与含二氧化碳的气体(如纯二氧化碳、未净化的放热式气氛以及其他干燥的燃烧废气等),按一定比例通入炉内,零件在低温下进行氮碳共渗(或称氮碳氧共渗)从而强化表面。为了掌握这一工艺,我们进行了百余炉的工艺试验和生产验证,并纳入了生产工 In 1977, West Germany Ai Xie Lin introduced to our country a new gas soft nitrocarburizing method, namely NITROC law. Its main features are: the ammonia gas and carbon dioxide-containing gases (such as pure carbon dioxide, unpurified exothermic atmosphere and other dry combustion gases, etc.), according to a certain percentage of access to the furnace, the parts at low temperature carbon and carbon Permeation (or nitrocarburizing) to strengthen the surface. In order to master this process, we conducted a hundred furnace process test and production verification, and included in the production