大断面蠕铁缸盖缩松原因分析及防治  

Reason analysis and prevention of shrinkage for large section vermicular iron cylinder head

作　　者：宋学恩 耿建华 王焕宁 SONG Xueen;GENG Jianhua;WANG Huanning(Binhai Foundry Factory,Weichai Heavy Machinery Co.,Ltd.,Weifang 261108,Shandong China)

机构地区：[1]潍柴重机股份有限公司滨海铸造厂,山东潍坊261108

出　　处：《中国铸造装备与技术》2020年第2期35-36,共2页China Foundry Machinery & Technology

摘　　要：对于大断面柴油机气缸盖,通过采用顶置发热冒口,并配合使用冷铁,能最大发挥冒口作用。对于大型单体气缸盖,可采用平组立浇方式,增强顺序凝固作用,进一步缩小缩松风险。For large-section diesel engine cylinder heads,by use of an overhead heating riser and cold iron,the riser function can be maximized.For large monolithic cylinder heads,flat group vertical pouring can be used to enhance sequential solidification and further reduce the risk of shrinkage.

关 键 词：大断面 蠕铁 平组立浇 顺序凝固 发热冒口 

分 类 号：TG245[金属学及工艺—铸造]