| 压缩机连杆断裂失效分析 |
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| 引用本文： | 张亚明,夏邦杰,董爱华,黄伟,孙德沛.压缩机连杆断裂失效分析[J].理化检验(物理分册),2009,45(4):236-239. |
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| 作者姓名： | 张亚明 夏邦杰 董爱华 黄伟 孙德沛 |
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| 作者单位： | 张亚明,夏邦杰,董爱华,ZHANG Ya-ming,XIA Bang-jie,DONG Ai-hua(中国科学院,金属研究所,沈阳,110016);黄伟,孙德沛,HUANG Wei,SUN De-pei(中国石油天然气股份有限公司,辽阳石化分公司,辽阳,111003)
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| 摘 要： | 某炼油厂焦化装置富气压缩机连杆发生断裂。采用化学成分分析、金相检验、力学性能测试和断口分析等方法对断裂连杆进行了分析。结果表明，在交变栽荷的作用下，连杆的小头孔内应力集中处产生微裂纹并成为裂纹源，然后发生裂纹扩展，最终导致连杆小头处发生疲劳断裂。
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| 关 键 词： | 焦化装置 压缩机 35钢 连杆 疲劳 断裂 |
Failure Analysis of Fractured Connecting Rod in a Compressor |
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| ZHANG Ya-ming,XIA Bang-jie,DONG Ai-hua,HUANG Wei,SUN De-pei.Failure Analysis of Fractured Connecting Rod in a Compressor[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2009,45(4):236-239. |
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| Authors: | ZHANG Ya-ming XIA Bang-jie DONG Ai-hua HUANG Wei SUN De-pei |
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| Affiliation: | 1.Institute of Metal Research;Chinese Academy of Sciences;Shenyang 110016;China;2.Liaoyang Petrochmical Company;PetroChina Company Limited;Liaoyang 111003;China |
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| Abstract: | A series of study were carried out on the fractured connecting rod of rich gas compressor in coking unit of one oil refining factory by check analysis of chemical composition,microscopic structure,mechanical property and fracture microscopic observation.The results showed that the micro-crack was initiated in the role of the small end of compressor because of stress concentration under cyclic loading,then the micro-crack propagated,which at last leads to the fatigue fracture of small end of connecting rod. |
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| Keywords: | coking unit compressor 35 steel connecting rod fatigue fracture |
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