阀体砂型铸造充型凝固过程数值模拟研究  

Numerical Simulation Study on Filling and Solidification Process of Valve Body Sand Casting

作　　者：王成军[1] 刘琼[1] 李龙[1] 韩董董[1] 

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《热加工工艺》2015年第23期84-86,91,共4页Hot Working Technology

基　　金：自然科学基金青年科学基金资助项目(51205003);安徽省高校省级自然科学研究重点资助项目(KJ2012A089)

摘　　要：由于阀体零件结构复杂,砂型铸造阀体时,浇注系统和工艺参数不当容易导致铸件出现缩松、缩孔等缺陷。采用Pro CAST软件对典型阀体砂型铸造过程进行数值模拟,研究了金属液充型和凝固过程。分析了缺陷产生的原因,改进了浇注工艺方案,提高了铸件的质量和合格率。As the structure of valve body parts is complex, unsuitable gating system and process parameters easily lead to the casting shrinkage and shrinkage defects during sand casting. The sand casting process of the typical valve body was numerically simulated by using ProCAST software. The filling and solidification process of liquid metal were studied. The causes of defects were analyzed, and the casting technology scheme was improved. The quality and the qualified rate of the casting were improved.

关 键 词：阀体 砂型铸造 充型凝固 数值模拟 

分 类 号：TG249.6[金属学及工艺—铸造]