在氮基可控气氛中,由于氢含量较低,不会引起钢的氢脆;含有少量一氧化碳,避免了合金钢因铬、锰、硅等合金元素氧化而影响钢的强度,因此,它是钢热处理时一种较好的保护气氛。可是,老式的氮基可控气氛制取工艺和设备很复杂,在一些中小工厂中很难实现,所以它的应用受到了限制。近年来,国外推广用工业氮制取氮基可控气氛(有的称它为新型氮基可控气氛),并 In a nitrogen-controlled atmosphere, hydrogen embrittlement does not occur due to the low hydrogen content. A small amount of carbon monoxide is contained to prevent the alloy steel from affecting the strength of the steel due to oxidation of alloying elements such as chromium, manganese, silicon, etc. Therefore, Steel heat treatment is a good protection atmosphere. However, the conventional nitrogen-controlled atmosphere preparation process and equipment are complex and difficult to achieve in some small and medium-sized factories, so its application is limited. In recent years, foreign countries to promote the use of industrial nitrogen nitrogen controllable atmosphere (some called it a new nitrogen-controlled atmosphere), and