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渗碳淬火渗氮与碳氮共渗外观区别
更新时间: 2020-09-17 00:00:00  

外观区别:渗碳淬火的外表颜色发黑;渗氮的外表颜色有些发黄;渗氮共渗的外表颜色发黑,与渗碳淬火类似。

渗碳:渗碳后的工件经淬火和低温回火,使表面具有高硬度河耐磨性,而心部仍保持良好的塑性河韧性,从而满足工件外硬内韧的使用要求。

渗氮:零件渗氮后表面形成一层氮化物,不需要淬火就可以具有高的硬度、耐磨性、抗疲劳性河一定的腐蚀性,而且变形也很小。

碳氮共渗:又称氰化。碳氮共渗是将钢件表面同时渗入碳原子河氮原子,形成碳氮共渗层,以提高工件的硬度、耐磨性河疲劳强度的处理方法。

关键词: 淬火 外观 区别

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