Hot Working Technology 2015,Vol.44,No.23
阀体砂型铸造充型凝固过程数值模拟研究
王成军， 刘 琼， 李 龙， 韩董董
(安徽理工大学机械工程学院， 安徽 淮南 232001)
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ProCAST 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。
关键词：阀体； 砂型铸造； 充型凝固； 数值模拟
DOI: 10.14158/j. cnki. 1001-3814. 2015. 23. 022
中图分类号： 249.6 文献标识码： 文章编号： 2015)23-0084-03
TG A 1001-3814( n
Numerical Simulation Study on Filling and Solidification Process
c
of Valve Body Sand Casting .
WANG Chengjun, LIU Qiong, LI Long, HAN Dongdong
g
(School of Mechanical Engineering, Anhui University of Science and Technology, Huainan 232001, China)
r
Abstract ：
As the structure of valve body parts is complex, unsuitable gating system and process parameters easily lead to
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the casting shrinkage and shrinkage defects during sand casting. The sand casting process of the typical valve body was
例 o
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
案 o
casting were improved. E
