基于MAGMASOFT的大型铝合金叶轮铸造工艺模拟  

Simulation of casting process for large aluminum alloy impeller based on MAGMASOFT

作　　者：孙德智 王桂青[1] 田长文 SUN De-zhi;WANG Gui-qing;TIAN Chang-wen(School of Materials Science and Engineering,Shandong Jianzhu University,Jinan 250101,China;Advanced Materials Institute,Qilu University of Technology（Shandong Academy of Sciences）,Jinan 250014,China)

机构地区：[1]山东建筑大学材料学院,山东济南250101 [2]齐鲁工业大学山东省科学院,山东省科学院新材料研究所,山东济南250014

出　　处：《山东科学》2018年第4期44-49,共6页Shandong Science

基　　金：山东省高等学校科研计划(J17KA017)

摘　　要：设计了一种大型铝合金叶轮铸件的砂型铸造工艺方案。应用铸造模拟软件MAGMASOFT,对铸件的充型过程、卷气缺陷分布及温度场分布状况进行模拟计算。通过分析认为铸件产生缺陷的主要原因是口环处冒口设计不合理,提出应在口环处冒口加设保温套增加冒口的补缩作用。模拟验证结果表明,优化工艺后铸件缩孔、缩松问题得到有效解决。A sand casting process scheme for large aluminum alloy impeller casting was designed in this paper. By using the casting simulation software MAGMASOFT,the filling process,the distribution of the gas defects and the temperature field distribution of the casting were simulated. According to the analysis,the main reason for the defects of the castings was the unreasonable design of the riser at the mouth ring. It is proposed to add insulation sleeve to the riser at the mouth ring to increase the feeding effect of the riser. The simulation results show that the problems of shrinkage porosity and shrinkage tendency of castings are effectively solved after optimizing the process.

关 键 词：MAGMASOFT 叶轮 数值模拟 工艺优化 

分 类 号：TG249.2[金属学及工艺—铸造]