柴油发动机铸件铸造工艺优化设计  

Optimization of Casting Processfor Diesel Engine Castings

作　　者：范伟 李永刚 张聚辉 鲁栋 戚鹏超 FAN Wei;LI Yong-gang;ZHANG Ju-hui;LU Dong;QI Peng-chao(Weichai Heavy Machinery Co.,Ltd.,Weifang261108,Shandong,China)

机构地区：[1]潍柴重机股份有限公司,山东潍坊261108

出　　处：《铸造》2021年第8期986-990,共5页Foundry

摘　　要：以生产的发动机机体气孔缺陷和曲轴夹渣缺陷为切入点,采用数值模拟方法分析了缺陷产生的原因。根据充型和凝固过程数值模拟结果,对原工艺实施改进。大量的生产数据表明,实施的工艺措施非常有效,铸件废品率和缺陷率大大降低。Based on the blowhole defects of engine blockcastings and the slag inclusion defects of crankshaft castings,which occurin the production process,the causes of the defects were analyzed by using numerical simulation method.According to the simulation results of the mold filling and solidification process,the casting process improvements werecarried out.The large amounts of data from the production showed that thecorrective measurestaken were significantly more effective.The blowhole defect in engine block castings and the rejection rate ofcrankshaft castings weregreatly reduced.

关 键 词：柴油发动机铸件 铸造工艺 铸件缺陷 数值模拟 

分 类 号：TG242[金属学及工艺—铸造]