洗衣机螺栓断裂失效分析
Fracture Analysis of Bolt of Washing Machine
摘 要
某洗衣机螺栓在安装过程中发生断裂失效，为查明螺栓断裂的原因，对断裂螺栓进行了化学成分分析、宏观分析、金相检验和断口微观形貌分析。结果表明：螺栓断裂是由于其制造时产生了严重的带状组织,降低了螺栓的许可扭转力矩，导致螺栓在安装过程中发生扭转断裂。
螺栓
扭转断裂
failure analysis
bolt
torsional fracture
Abstract
Bolts of the washing machine fractured during installation process. Chemical composition analysis,macro examination,metallographic examination and fracture analysis on the fractured bolts were conducted to find the fracture reason. The results show that the fracture was caused by the banded structure which decreased the permitted rotational moment and resulted in the torsional fracture of the bolts during installation process.
中图分类号 TQ172.6
所属栏目 质量控制与失效分析
基金项目
收稿日期 2009/3/16
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备注师红旗(1982-),男,硕士研究生。
引用该论文: SHI Hong-qi,ZHOU Can-xu,DING Yi,MA Li-qun. Fracture Analysis of Bolt of Washing Machine[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(10): 633～634
师红旗,周灿旭,丁 毅,马立群. 洗衣机螺栓断裂失效分析[J]. 理化检验－物理分册, 2009, 45(10): 633～634
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参考文献
【1】钟群鹏．断口学[M]. 北京：高等教育出版社,2005．
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