一种中速船用柴油机气缸盖铸件气道皮下气孔缺陷的分析与解决  

Analysis and Solution of the Surface Blowhole in the Cylinder Head Casting of A Medium Speed Marine Diesel Engine

作　　者：宋学恩 王宝全 张鑫 王焕宁 李永刚 谭传宝 SONG Xue-en;WANG Bao-quan;ZHANG Xin;WANG Huan-ning;LI Yong-gang;TAN Chuan-bao(l.Weichai Heavy Machinery Co.,Ltd.,Weifang Shandong 261108,China;Weichai Power Co.,Ltd.,Weifang Shandong 261103,China)

机构地区：[1]潍柴重机股份有限公司,山东潍坊261008 [2]潍柴动力股份有限公司,山东潍坊261008

出　　处：《铸造设备与工艺》2023年第1期49-51,共3页Foundry Equipment & Technology

摘　　要：本文主要针对一种中速船用柴油机气缸盖气道位置出现的皮下气孔进行了分析,分析认为主要是由于气道厚大,以及采用了中注半开放式浇注系统导致铁液在气道下部厚大部位出现紊流形成氧化夹渣,最终形成渣气孔。通过优化浇注系统与溢流系统,最终解决了皮下气孔缺陷。In this paper,the subcutaneous pores in the cylinder head of a medium speed marine diesel engine were analyzed,and it was found that the main reason was that the thick airway and the medium injection pouring system led to the turbulent flow of Equid iron forming oxidation slag and finally forming slag pores.By optimizing the pouring and overflow system,the subcutaneous pores were finally solved.

关 键 词：气缸盖 皮下气孔 气道 浇注系统 

分 类 号：TG245[金属学及工艺—铸造]