某型压力控制阀壳体裂纹分析及改进

Crack Analysis and Improvement on the Pressure Valve Housing

通过对某型压力控制阀壳体裂纹进行宏观和微观形貌的观察,并结合金相检验、有限元分析等手段,对其失效原因进行了分析。并根据分析结果,对壳体结构进行设计改进,避免了同类故障再次发生。

The fracture reason of the crack of a certain type of pressure control valve housing was analyzed by macro and micro-fractography,metallographicexamination and finite element analysis.The designer changes the shell structure on basis of the analysis to avoid the same fault.