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分析了密封副失效原因 ,讨论了金相组织、表面硬度、表层残余应力分布和内部硬度有效层深对金属疲劳性能的影响 ,提出了生产工艺过程控制方法及热处理管理方法
The reasons for the failure of the seal pair were analyzed. The effects of microstructure, surface hardness, surface residual stress distribution and effective internal layer depth on the fatigue properties of the metal were discussed. The control methods of the production process and the heat treatment management methods