由江苏省金陵汽车制配厂与江苏工学院共同负责的低碳马氏体活塞销的研究课题,在南京通过省级技术鉴定。该课题组通过对活塞销的失效情况调研,从价值工程观点分析指出,目前的活塞销采用渗碳工艺,追求过大的耐磨性功能储备既不经济又不合理。课题组通过近三年的研究和装车运行考核证明:低碳马氏体活塞销的疲劳强度优于单面渗碳活塞销,且有足够的耐磨性功能储备。低碳马氏体 The research topic of low-carbon martensitic piston pin jointly owned by Jiangsu Jinling Automobile Manufacturing Factory and Jiangsu Polytechnic University passed the provincial technical appraisal in Nanjing. Based on the investigation of the failure of the piston pin, the research group pointed out from the point of view of value engineering that the current piston pin adopts the carburizing process and is not economical and unreasonable to pursue the function of excessive wear resistance. Research group through nearly three years of research and loading and running tests proved that: low-carbon martensitic piston pin fatigue strength better than single-sided carburized piston pin, and have adequate wear resistance reserves. Low-carbon martensite