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一、概述 法国液压机械与摩擦学(HEF)研究所于一九七五年取得了无污染熔盐硫、氮、碳(硫氰)共渗新工艺的专利权。经此工艺处理的工件具有减摩、抗咬死,耐磨和能提高疲劳强度等优良性能,同时熔盐含氰根量不大干0.8％(法国指标,我国国标为不大于1％),达到厂无污染。并且通过稳定熔盐成份来保证被处理的工件强化效果稳定。一
I. Overview The Institute of Hydraulic Machinery and Tribology (HEF) in France obtained the patent right of a new process of non-polluting molten salt sulfur, nitrogen and carbon (thiocyanate) co-infiltration in 1975. Workpieces treated by this process have excellent properties such as anti-friction, anti-seizure, wear resistance and fatigue strength, meanwhile, the content of cyanide-free salt in molten salt is not more than 0.8% (French indicator, China’s national standard is not more than 1%), To plant pollution-free. And by stabilizing the composition of the molten salt to ensure that the workpiece to be treated to strengthen the effect of stability. one