蠕墨铸铁气缸盖铸造工艺改进  

Improvement of Casting Process of Vermicular Cast Iron Cylinder Head

作　　者：周小亮 任国波 王建荣 ZHOU Xiaoliang;REN Guobo;WANG Jianrong(CRRC Qishuyan Co.,Ltd.,Changzhou 213011,Jiangsu China)

机构地区：[1]中车戚墅堰机车有限公司,江苏常州213011

出　　处：《铸造工程》2022年第5期43-45,共3页Foundry Engineering

摘　　要：介绍了16V240柴油机气缸盖的铸造工艺,分析认为冒口附近热节是铸件冒口底部产生缩孔缺陷的主要原因,通过采用铸件厚大部分设置冷铁加快该部位的冷却速度实现自补缩,消除了铸件的缩孔缩松缺陷。The casting technology of 16V240 diesel engine cylinder head was introduced. The hot joint at riser was the main cause of shrinkage cavity defect at riser bottom.The defects of shrinkage cavity and porosity of the casting were eliminated by setting the cold iron.Setting chillers could accelerate the cooling speed of this part to realize self-feeding.

关 键 词：蠕墨铸铁 气缸盖 缩孔 

分 类 号：TG242[金属学及工艺—铸造]