工业上对机械零件采用的表面化学热处理,除渗碳外,还有软氮化及渗硫,这些处理常用氰基系盐浴。本文概要介绍气体渗硫氮化处理。软氮化得到的表面层,主要是ε-相(Fe_(2-3)N),在渗硫处理(以后在本文中专指盐浴渗硫)的场合下,ε-相含有细小的硫化铁。这两种处理都能得到性能 Industrial use of mechanical parts on the surface of the chemical heat treatment, in addition to carburizing, there are soft nitriding and sulfur infiltration, these treatments commonly used cyanate salt bath. This article provides an overview of gas infiltration sulphide nitriding. The surface layer obtained by nitrocarburization, mainly ε-phase (Fe_ (2-3) N), in the case of sulfurizing treatment (hereinafter referred to herein as salt bath sulfurization), the ε-phase contains fine sulfides iron. Both of these processes get performance