冰箱压缩机阀片断裂失效分析

付玉彬, 单向东, 宰学荣

付玉彬, 单向东, 宰学荣. 冰箱压缩机阀片断裂失效分析[J]. 材料开发与应用, 2008, 23(5): 71-76. DOI: 10.19515/j.cnki.1003-1545.2008.05.017
引用本文: 付玉彬, 单向东, 宰学荣. 冰箱压缩机阀片断裂失效分析[J]. 材料开发与应用, 2008, 23(5): 71-76. DOI: 10.19515/j.cnki.1003-1545.2008.05.017
FU Yu-bin, DAN Xiang-dong, ZAI Xue-rong. Fracture Failure Analysis of Compressor Valve in Refrigerator[J]. Development and Application of Materials, 2008, 23(5): 71-76. DOI: 10.19515/j.cnki.1003-1545.2008.05.017
Citation: FU Yu-bin, DAN Xiang-dong, ZAI Xue-rong. Fracture Failure Analysis of Compressor Valve in Refrigerator[J]. Development and Application of Materials, 2008, 23(5): 71-76. DOI: 10.19515/j.cnki.1003-1545.2008.05.017

冰箱压缩机阀片断裂失效分析

详细信息
    作者简介:

    付玉彬,博士。中国海洋大学材料科学与工程研究院。电子邮件:ffyybb725@vip.sina.com.

  • 中图分类号: T142.1

Fracture Failure Analysis of Compressor Valve in Refrigerator

  • 摘要: 压缩机是冰箱的心脏,压缩机阀片的断裂失效可引起制冷系统严重故障。本文利用表面应力分析、金相组织和显微硬度分析、成分分析等方法,以及三维视频光学显微镜、扫描电子显微镜等,研究了阀片断裂的特征和机制。断口和裂纹分析表明,阀片失效是疲劳断裂机制,断口具有明显的疲劳扩展区和多处裂纹源。阀片的材质和组织正常。阀片表面的局部损伤容易引起断裂。塑料垫片和阀片形状设计对断裂失效有重要影响。在上述分析的基础上,提出了质量改进措施并取得了良好效果。
    Abstract: Compressor is the heart of refrigerator and the fracture of the valve in compressor will bring about severe failure of cold-producing system.The characteristics and mechanism of valve fracture are investigated in the paper by means of optical microscopy,scanning electronic microscopy(SEM),metalligraphic microscopy,microhardness,surface stress and elemental analysis.The SEM analysis indicates that the valve failure is fatigue fracture,and there exist clear fatigue expansion regions and many crack originals in the fracture.The chemical composition and micro structure of the valve are qualified.The local damage on the valve surface is liable to the fracture,and the shape of the valve and plastic flat gasket have impact on the valve fracture.On the basis of the above analysis,some quality improvement measures are presented,and good result is received.
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出版历程
  • 收稿日期:  2008-02-21
  • 网络出版日期:  2024-03-29

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