【摘要】 采用化学分析 ,金相检验及力学性能测定方法对汽车柴油机在运行中发生的连杆盖及上、下螺栓的早期断裂进行了分析。结果表明 ,连杆盖首先发生疲劳断裂 ,随后导致连杆螺栓的断裂 ,而这种断裂既与应力有关 ,又与零件的加工工艺有关更多还原

【Abstract】 The fracture of the head and upper and lower bolts of connecting rod of a diesel engine was analyzed. The results showed that the fatigue fracture of the connecting head happened first, which was related both to the working stress and to the processing of this part.更多还原