低压铸造内浇道尺寸对铸件质量的影响  

Influence of Inner Runner Size on Casting Quality in Low Pressure Casting

作　　者：代志功 毕俊喜[1] 唐庆瑞 

机构地区：[1]内蒙古工业大学机械学院,内蒙古呼和浩特010051

出　　处：《铸造技术》2018年第2期367-369,373,共4页Foundry Technology

基　　金：2016内蒙古自治区科技创新引导奖励基金项目;内蒙古自然科学基金项目(2016MS0539)

摘　　要：运用ProCAST模拟软件对叶轮低压铸造充型和凝固过程进行数值模拟,分析截面积不同的内浇道尺寸对流场、温度场的影响。结果表明,截面积较大的内浇道有助于改善铸造条件、细化晶粒、有效减少缩松缩孔。试生产铸件组织与模拟结果有较好的一致性。ProCAST simulation software was used to simulate the filling and solidification process of the low-pressure casting impeller, and the influence of the flow field and temperature field of the inner runner with different sectional area were analyzed. The results show that the larger area of the inner runner can improve casting conditions, grain refining, and effectively reduce shrinkage cavity. The results of casting mierostructure are consistent with the simulation results.

关 键 词：PROCAST 低压铸造 缩松缩孔 数值模拟 

分 类 号：TG249.2[金属学及工艺—铸造]