离心泵壳体精密铸造数值模拟研究

谭诗薪; 郝新; 胡兵; 雷四雄; 汪东红; 姜淼; 祝国梁; 疏达

doi:10.15980/j.tzzz.2020.07.017

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离心泵壳体精密铸造数值模拟研究
Numerical Simulation of Centrifugal Pump Shell in Investment Casting
2020年40卷第7期页码：770-773
纸质出版日期： 2020 ，
DOI： 10.15980/j.tzzz.2020.07.017

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[1]谭诗薪,郝新,胡兵,雷四雄,汪东红,姜淼,祝国梁,疏达.离心泵壳体精密铸造数值模拟研究[J].特种铸造及有色合金,2020,40(07):770-773.

Tan Shixin, Hao Xin, Hu Bing, et al. Numerical Simulation of Centrifugal Pump Shell in Investment Casting[J]. Special Casting & Nonferrous Alloys, 2020,40(7):770-773.
[1]谭诗薪,郝新,胡兵,雷四雄,汪东红,姜淼,祝国梁,疏达.离心泵壳体精密铸造数值模拟研究[J].特种铸造及有色合金,2020,40(07):770-773. DOI： 10.15980/j.tzzz.2020.07.017.

Tan Shixin, Hao Xin, Hu Bing, et al. Numerical Simulation of Centrifugal Pump Shell in Investment Casting[J]. Special Casting & Nonferrous Alloys, 2020,40(7):770-773. DOI： 10.15980/j.tzzz.2020.07.017.

摘要

离心泵壳体铸件外部有9条加强筋、内部有7个叶片

结构复杂。采用分体式蜡模组装工艺实现了蜡模成形

并对离心泵壳体分体式蜡模注射成形工艺进行了数值模拟。通过ProCAST软件对离心泵壳体的流场、温度场、孤立液相区与缩松分布进行了模拟

优化了浇注系统与铸造工艺

提高了离心泵壳体的合格率。

Abstract

The shell structure of centrifugal pump is complex with nine external stiffeners and inside seven blades.The wax injection and casting process design are difficult problems in investment casting process.Numerical simulation and analysis were carried out on the wax injection process of centrifugal pump shell.The forming of wax pattern was realized by split wax pattern assembly.The flow field

isolated liquid phase region and shrinkage distribution of centrifugal pump shell were simulated and analyzed by the ProCAST software

and the casting process was optimized to improve the qualified rate of centrifugal pump shell.