机械制造与自动化2011，Vol.40Issue(2)：53-54,69,3.
换热器螺栓断裂分析
Analysis of Fractured Bolt of Plate Thermal Exchanger
王利峰 1张建国 2杨庆平 1张武锋 1陆辉1
作者信息
- 1. 江苏省机械研究设计院有限责任公司,江苏南京210012
- 2. 江苏省电力试验研究院有限公司,江苏南京211100
- 折叠
摘要
Abstract
The Macroscopic analysis, chemical composition analysis, SEM EDAX observation and metallographic examination are conducted to study the fractured bolt of the plate thermal exchanger supplied by a certain factory.High density banded segregations and nonmetal impurities are observed around the central area of the material and many micro cracks exist along the segregations and impurities bands.The micro cracks promote growth to breaking when the bolt is under loading.关键词
螺栓/断裂/成分偏析/非金属夹杂/微裂纹Key words
bolt/ fracture/ segregation/ nonmetal impurities / micro crack分类
机械制造引用本文复制引用
王利峰,张建国,杨庆平,张武锋,陆辉..换热器螺栓断裂分析[J].机械制造与自动化,2011,40(2):53-54,69,3.
