摘要
对国产高速链滚子的早期破坏进行了失效分析。结果表明，在循环载荷作用下，多冲疲劳裂纹首先萌生于冷镦加工在滚子内表面所形成的加工划痕及台阶处，并扩展至断裂。因此，滚子内表面加工质量差是滚子早期失效的主要原因，并提出了改进措施。
The early failure of rollers of the high speed chain was analysed in this paper The result showed that under the fluctuant load,impact fatigue cracks firstly initiated at the inner surface of roller,where there are working scars and steps resulted from the cold heading,and then propagated to fracture Thus,the worse working quality of roller inner surface is main cause for early failure of roller Furthermore,the improving measures were given
出处
《金属热处理》
CAS
CSCD
北大核心
1999年第2期39-40,共2页
Heat Treatment of Metals
