Numerical Simulation of Sand Casting Diffuser

Gao Feng; Xiao Tiancheng

doi:10.15980/j.tzzz.2016.09.006

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Numerical Simulation of Sand Casting Diffuser
Vol. 36, Issue 9, Pages: 917-919(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.09.006

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[1]高峰,肖天成.铸造导叶体的数值模拟[J].特种铸造及有色合金,2016,36(09):917-919.

Gao Feng, Xiao Tiancheng. Numerical Simulation of Sand Casting Diffuser. [J]. Special Casting & Nonferrous Alloys 36(9):917-919(2016)
[1]高峰,肖天成.铸造导叶体的数值模拟[J].特种铸造及有色合金,2016,36(09):917-919. DOI： 10.15980/j.tzzz.2016.09.006.

Gao Feng, Xiao Tiancheng. Numerical Simulation of Sand Casting Diffuser. [J]. Special Casting & Nonferrous Alloys 36(9):917-919(2016) DOI： 10.15980/j.tzzz.2016.09.006.

摘要

利用ProCAST软件对水下装置关键部件双相不锈钢导叶体的铸造工艺进行了模拟

验证了导叶体工艺的正确性。通过对铸件凝固过程中温度场的计算

确定在铸件完全凝固及σ脆性相大量析出前所需要的时间。在实际生产中从浇注到铸件冷却

进行落砂操作

消除叶片的应力。通过此法解决了裂纹缺陷

提高了铸件质量。

Abstract

The casting process of sand casting diffuser as the key part of underwater device was simulated by the ProCAST software

and feasibility of casing process was verified.Through calculation of temperature field

the time before the casting solidification completion and a lot of brittleσphase precipitation was determined.Shakeout operation was implemented at this time from pouring completion to the casing cooling in the actual production

eliminating the stress caused by contraction of the blade.So the crack defects were eliminated

and quality of the casting was improved.