基于CAE的缸盖砂型铸造浇注温度和铸型温度对缩孔的影响研究  

Influence of Pouring Temperature and Mold Temperature on Shrinkage Hole of Cylinder Head in Sand Casting Based on CAE

作　　者：殷亚军[1] 邱飞朝 李文[1] 沈旭[1] 计效园[1] 李远才[1] 李连杰 钱星云 周建新[1] YIN Yajun;QIU Feichao;LI Wen;SHEN Xu;JI Xiaoyuan;LI Yuancai;LI Lianjie;QIAN Xingyun;ZHOU Jianxin(State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science&Technology,Wuhan 430074,Hubei China;Wuxi Branch,FAW Casting Co.,Ltd.,Wuxi 214174,Jiangsu China)

机构地区：[1]华中科技大学材料成形与模具技术全国重点实验室,湖北武汉430074 [2]一汽铸造有限公司无锡分公司,江苏无锡214174

出　　处：《铸造工程》2023年第S01期61-65,共5页Foundry Engineering

摘　　要：针对汽车发动机缸盖铸件在砂型铸造过程中存在的缩孔缺陷,利用CAE模拟软件研究关键工艺参数——浇注温度和铸型温度对缩孔缺陷的影响。缩孔缺陷主要出现在缸盖的厚壁处,在浇注温度为1370℃、铸型温度为20℃以及浇注温度为1360℃、铸型温度为30℃时,缩孔数量最少,为22个。通过相关性分析,发现相较于铸型温度,浇注温度对缩孔数量的影响更明显。Aiming at the shrinkage defects in the sand casting process of automobile engine cylinder head castings,CAE simulation software was used to study the influence of key process parameters-pouring temperature and casting temperature on shrinkage defects.Shrinkage holes mainly appear on the thick wall of the cylinder head,and the number of shrinkage holes is at least 22 when the pouring temperature is 1370°C,the casting temperature is 20℃ and the pouring temperature is 1360℃ and the mold temperature is 30℃.Through correlation analysis,found that the pouring temperature has a more obvious effect on the number of shrinkage holes than the mold temperature.

关 键 词：砂型铸造 数值模拟 浇注温度 铸型温度 缩孔缺陷 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]