理化检验-物理分册2025，Vol.61Issue(10)：32-35,4.DOI:10.11973/lhjy-wl250079
压缩机吸气阀片断裂原因
Reason for compressor suction valve plate fracture
魏正龙 1伍超群 1管尽琼 1蔡仕锋 1周鹏 1罗铁础 1刘连花1
作者信息
- 1. 广东省科学院工业分析检测中心,广州 510650
- 折叠
摘要
Abstract
A compressor suction valve plate fracture accident occurred.The fracture cause of the valve plate was analyzed using macroscopic observation,chemical composition analysis,metallographic examination,hardness testing,scanning electron microscopy and energy spectrum analysis.The results show that there were obvious corrosion points and sulfide inclusions distributed in intermittent strips inside the structure of the suction valve plate,which reduced the mechanical properties of the suction valve plate.The material itself had a high hardness,and stress concentration occurred at the waist of the valve plate.Microcracks were initiated at the inclusions,and under stress,the cracks continued to propagate,and ultimately led to early brittle fatigue fracture of the suction valve plate.关键词
吸气阀片/脆性疲劳断裂/非金属夹杂物/力学性能/显微组织Key words
suction valve plate/brittle fatigue fracture/non-metallic inclusion/mechanical property/microstructure分类
通用工业技术引用本文复制引用
魏正龙,伍超群,管尽琼,蔡仕锋,周鹏,罗铁础,刘连花..压缩机吸气阀片断裂原因[J].理化检验-物理分册,2025,61(10):32-35,4.
