| L型船用柴油机活塞失效分析研究 |
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| 引用本文： | 迟绍宁,张水利,吴琴,裴洪磊,贾武,李泽胜.L型船用柴油机活塞失效分析研究[J].铁道机车车辆,2011,31(Z1):384-386. |
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| 作者姓名： | 迟绍宁 张水利 吴琴 裴洪磊 贾武 李泽胜 |
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| 作者单位： | 中国石油济南柴油机股份有限公司,山东济南,250306 |
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| 摘 要： | 通过对L型船用柴油机失效活塞材料内部质量的理化检验分析,阐述了船用柴油机失效活塞材料的组织特点和内部缺陷等级,结合失效活塞特定的外观破坏形貌以及热处理工艺特点,指出了造成这次活塞失效的主要原因是活塞内部存在组织缺陷和内应力共同造成的.同时,为防止今后出现类似的失效问题,提出了指导性的建议.
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| 关 键 词： | 失效活塞 内应力 组织缺陷 改进措施 |
Failure Analysis of the L Type Marine Diesel Engine Piston |
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| CHI Shao-ning
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ZHANG Shui-li
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WU Qing
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PEI Hong-lei
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JIA Wu
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LI Ze-sheng.Failure Analysis of the L Type Marine Diesel Engine Piston[J].Railway Locomotive & Car,2011,31(Z1):384-386. |
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| Authors: | CHI Shao-ning ZHANG Shui-li WU Qing PEI Hong-lei JIA Wu LI Ze-sheng |
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| Institution: | CHI Shao-ning,ZHANG Shui-li,WU Qing,PEI Hong-lei,JIA Wu,LI Ze-sheng(JINAN DIESEL ENGINE CO.,LTD,Jinan 250306 Shandong,China) |
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| Abstract: | The physical and chemical test was used to study the internal quality of the L type marine diesel engine piston.This paper described microstructure characteristics and internal defects grades of the failure piston of the marine diesel engine.Based on the fracture surface morphology and the heat treatment process of the failure piston,it was found that the microstrcture defects and the internal stress in the piston was the main reason that led to the piston failure.And some suggestions were given to prevent ... |
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| Keywords: | failure piston internal stress microstrcture defect improvement measure |
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