The sliding sheet is a key component of the compressor product,which needs to meet the reliability requirements of the air conditioning system under long-term operation.In this paper,the failure mechanism and cause analysis are carried out to solve the abnormal failure problem of slide parts in the development process of a compressor product.The results show that the failure mechanism of slide parts is fatigue fracture.The extrusion grinding process after nitriding treatment may cause local damage to the nitriding layer on the inner surface of the groove at the end of slide sheet,and the surface hardness of slide sheet is reduced by about 200 HV,which may cause abnormal surface wear and eventually fatigue fracture.The corresponding improvement measures were put forwarded,and the subsequent compressor product durability reliability test passed,which further verified the effectiveness of improved scheme.
关键词
空调压缩机/滑片/失效分析/疲劳断裂
Key words
air conditioning compressor/slip sheet/failure analysis/fatigue fracture
维普
万方数据