现代工业的发展,对各种机器设备的性能要求越来越高,机器零件的工作条件也日趋苛刻,因此,延长机器零件的使用寿命,特别是某些易损零件的使用寿命,便成为改善机器性能的重要一环。为此,除了改进结构和选用新材料之外,对零件表面,特别是工作表面,进行特殊处理,改善其表面性能,也是常用的方法。通常,表面处理方法有化学处理、物理处 The development of modern industry is demanding more and more performance on various machinery and equipment and the working conditions of machine parts are becoming more and more harsh. Therefore, the service life of machine parts, especially the service life of certain delicate parts, will be improved An important part of the machine’s performance. To this end, in addition to improving the structure and the selection of new materials, the parts surface, especially the work surface, special treatment to improve the surface properties, is also a common method. In general, surface treatment methods include chemical treatment and physical treatment