摘要
针对某型号活塞顶面发生的裂纹和烧穿现象,对活塞的材料、内冷油腔、顶部积碳、断面裂纹和工作情况等进行了综合分析研究,认为活塞燃烧室喉口部位的硬伤、发动机长期超速超负荷运转是导致活塞顶部发生失效的主要原因,并就此提出了预防活塞顶部失效的措施。
For the crack and burn-through phenomenon of a engine piston crown,the piston material,inner oil-cooling channel,piston crown carbon deposition,section crack and working conditions were analyzed and researched synthetically.It was thought that collision of piston combustion chamber larynx and long-term overspeed and overload operation of engine were main causes for failure of engine piston crown.Based on thought,the measures of preventing failure of engine piston crown phenomenon were put forward.
出处
《煤矿机械》
北大核心
2012年第10期180-181,共2页
Coal Mine Machinery
