铸造2024，Vol.73Issue(9)：1319-1322,4.
S16R机体裂纹的分析及预防
Analysis and Prevention of Cracks in the S16R Frame
陈晓飞1
作者信息
- 1. 上柴动力海安有限公司,江苏海安 226600
- 折叠
摘要
Abstract
Directing at the problems of the S16R engine body casting cracks,the casting stress,metallographical,SEM and EDS analyses were carried out.The numerical simulation result of stress field show that the casting structure is reasonable and will not cause crack defects.However,the metallographical,SEM and EDS analyses reveal that there are E-type graphites and severe oxides existing on the positions of the cracks.Through taking measures of controlling the sand core strength at 1.0-1.2 MPa,adding 1%silicon carbide preprocessing agent during melting,increasing the carbon content of the casting by 0.05%,adding 0.1%silicon-zirconium stream inoculation and so on,the crack defects of castings were eliminated successfully.关键词
柴油机机体/树脂砂/裂纹Key words
diesel engine body/resin sand/crack分类
矿业与冶金引用本文复制引用
陈晓飞..S16R机体裂纹的分析及预防[J].铸造,2024,73(9):1319-1322,4.
