缸盖铸件气孔缺陷分析及工艺优化  

Defect Analysis and Process Optimization of the Gas Blowhole in Cylinder Head Castings

作　　者：付黎娜 谢吉坤 FU Lina;XIE Jikun(Kunming Yunnei Power Co.,Ltd.,Yunnei 650200,China)

机构地区：[1]昆明云内动力股份有限公司,云南昆明650200

出　　处：《铸造技术》2021年第4期296-297,共2页Foundry Technology

摘　　要：针对缸盖铸件在全组芯立浇工艺铸造过程中产生气孔缺陷的情况,分析了铸件产生缺陷的原因,并对原因进行了分析和工艺验证。调整外模排气系统,优化涂料,成功解决铸件气孔缺陷,降低了铸件废品率。In view of the situation of air hole defect in cylinder head casting process with whole core vertical casting process,the causes of the defects in the casting were analyzed and the process verification was carried out.The results show that by adjusting the exhaust system of the outer die and optimizing the coating,the porosity defect of the casting is solved successfully,and the castings reject rate is reduced.

关 键 词：缸盖 铸件 气孔 

分 类 号：TG251[金属学及工艺—铸造]