| 火车电机轴锁紧螺母及止动垫失效分析 |
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| 引用本文： | 田香菊,郝建英,郑建军,张敏刚.火车电机轴锁紧螺母及止动垫失效分析[J].太原科技大学学报,2007,28(3):223-227. |
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| 作者姓名： | 田香菊 郝建英 郑建军 张敏刚 |
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| 作者单位： | 太原科技大学材料科学与工程学院,太原,030024 |
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| 摘 要： | 对火车电机轴锁紧部件早期失效原因进行了分析研究。分析了失效构件的成分、性能、宏观及微观断口形貌和显微组织。由此得到：构件失效的主要原因是：锁紧螺母的热处理工艺不当，止动垫电镀过程发生氢脆。同时提出了预防措施。
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| 关 键 词： | 锁紧螺母 止动垫 断口形貌 显微组织 氢脆 |
| 文章编号： | 1673-2057（2007）03-0223-05 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006年4月20日 |
Failure Analysis on the Stopping Pad and Locking Nut of Train Electric Machine Axle |
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| TIAN Xiang-ju,HAO Jian-ying,ZHENG Jian-jun,ZHANG Min-gang.Failure Analysis on the Stopping Pad and Locking Nut of Train Electric Machine Axle[J].Journal of Taiyuan University of Science and Technology,2007,28(3):223-227. |
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| Authors: | TIAN Xiang-ju HAO Jian-ying ZHENG Jian-jun ZHANG Min-gang |
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| Abstract: | The early failure of the stopping pad and locking nut present work. The compositions, properties, macroscopic and of train electironic machine axle is analysized in the microscopic morphology of the facture surface and microstructures of the failure parts are investigated. The results show that the failure is mainly attributed to the inappropriate heat-treatment technology of the locking nut and the hydrogen britflement from electroplating of the stopping pad. Furthermore, the precautionary measures are suggested |
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| Keywords: | locking nut stopping pad facture morphology microstructure hydrogen brittlement |
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