某发动机缸盖火力面开裂分析及优化  

Cylinder Head Flame Face Cracking Analysis and Optimization for a Certain Engine

作　　者：罗剑坤 陈婷 温拾平 高维进[1] 钟巍[1] LUO Jiankun;CHEN Ting;WEN Shiping;GAO Weijin;ZHONG Wei(Jiangling Motors Co.,Ltd.,Nanchang Jiangxi,330030,China;Jiangxi Institute of Economic Administrators)

机构地区：[1]江铃汽车股份有限公司,江西南昌330030 [2]江西经济管理干部学院

出　　处：《小型内燃机与车辆技术》2024年第6期10-13,共4页Small Internal Combustion Engine and Vehicle Technique

摘　　要：针对某型增压柴油发动机缸盖在冷热冲击实验中出现的缸盖火力面开裂问题,充分利用断口分析、金相分析及材料成分检测、机械性能检测等手段,结合失效过程台架运行边界及冷却液特性,快速识别锁定缸盖开裂原因,制定优化方案,优化后的缸盖顺利通过了耐久试验并成功完成了整车高里程耐久实验。For a certain type of turbocharged diesel engine cylinder head flame face cracking during dyno test,by fracture analysis,metallographic analysis and conventional mechanical performance test,combined with the bench operating boundary and coolant characteristics,the root cause was got and the Permanent Corrective Actions were made according to the root cause.After Permanent Corrective Actions implement,the engine finished all the dyno and vehicle endurance tests.

关 键 词：缸盖开裂 柴油发动机 断口分析 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]