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化学热处理是改善金属材料,尤其是黑色金属材料表层性能的一种十分有效的处理方法。该处理的基本方法是将工件的表面和特定的渗剂介质处于一定范围的温度下,通过表面的热化学反应及热扩散过程使某种或几种元素渗入基体,形成固溶体或与基体元素及其某些合金元素形成化
Chemical heat treatment is a very effective treatment to improve the surface properties of metallic materials, especially ferrous metals. The basic method of this treatment is that the surface of the workpiece and the specific permeation agent medium are exposed to a certain range of temperature and the one or more elements penetrate into the matrix through the thermochemical reaction and the thermal diffusion process on the surface to form a solid solution or contact with the matrix elements and Some of its alloying elements are formed