| 电厂外供泵轴断裂原因分析 |
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| 引用本文： | 朱晏萱,毕启玲,丁永秀.电厂外供泵轴断裂原因分析[J].理化检验(物理分册),2011(5):312-314. |
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| 作者姓名： | 朱晏萱 毕启玲 丁永秀 |
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| 作者单位： | 新疆独山子克拉玛依职业技术学院机械工程系; |
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| 摘 要： | 某外供泵在运行期间其泵轴发生断裂。通过宏观和微观检验、化学成分分析以及硬度测试等方法对泵轴断裂的原因进行了分析。结果表明:该轴的热处理没有达到要求,使各项强度指标显著降低,加上在应力集中部位键槽根部产生了疲劳裂纹,并进一步扩展,最终导致泵轴断裂。
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| 关 键 词： | 泵轴 断裂 疲劳 应力集中 |
Fracture Reason Analysis of External Supply Pump Shaft in Power Plant |
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| ZHU Yan-xuan,BI Qi-ling,DING Yong-xiu.Fracture Reason Analysis of External Supply Pump Shaft in Power Plant[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2011(5):312-314. |
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| Authors: | ZHU Yan-xuan BI Qi-ling DING Yong-xiu |
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| Affiliation: | ZHU Yan-xuan,BI Qi-ling,DING Yong-xiu (Karamay Vocational & Technical College,Karamay 833600,China) |
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| Abstract: | The shaft of external supply pump was fractured in use.The fracture reason was analyzed by means of macroscopic and microscopic examination,chemical composition analysis,hardness testing and so oa The results showed that the main fracture reason was the improper heat treatment process,which reduced the mechanical properties of shaft.Furthermore,the fatigue cracks initiated in the root of keyway which was stress concentration position,and the cracks extended further and further,the shaft was fractured at las... |
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| Keywords: | pump shaft fracture fatigue stress concentration |
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