纯铜电极精铸数值模拟分析

郭广思; 张广华; 张伟强; 朱丽娟

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纯铜电极精铸数值模拟分析
Numerical Simulation of Investment Casting Pure Copper Electrode
2011年31卷第1期页码：56-58
纸质出版日期： 2011 ，
DOI：

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[1]郭广思,张广华,张伟强,朱丽娟.纯铜电极精铸数值模拟分析[J].特种铸造及有色合金,2011,31(01):56-58+105.

Guo Guangsi, Zhang Guanghua, Zhang Weiqiang, et al. Numerical Simulation of Investment Casting Pure Copper Electrode[J]. Special Casting & Nonferrous Alloys, 2011,31(1):56-58.
[1]郭广思,张广华,张伟强,朱丽娟.纯铜电极精铸数值模拟分析[J].特种铸造及有色合金,2011,31(01):56-58+105. DOI：

Guo Guangsi, Zhang Guanghua, Zhang Weiqiang, et al. Numerical Simulation of Investment Casting Pure Copper Electrode[J]. Special Casting & Nonferrous Alloys, 2011,31(1):56-58. DOI：

摘要

纯铜铸件铸造工艺难以掌握

容易产生缩孔、缩松等缺陷。根据铸件特征

进行浇注系统设计及冒口计算

分析实际生产中铸件产生缺陷的原因。应用数值模拟软件

验证理论分析的可行性。对比几种浇注系统

根据温度场、固相率云图预测铸件缺陷

优化出最佳工艺方案

并进行实际验证。基于最优工艺方案

生产出合格铸件

其电导率达到56MS/m

符合技术要求。

Abstract

Shrinkage porosity（hole）was often observed in casting pure copper electrode.Aiming at the characteristics of pure copper electrode

design of gating system and calculation of riser were performed

and origination of defects in practical pure copper electrode was analyzed.Availability of theoretical analysis was verified by numerical simulation.Through comparatively analyzing different gating system designs

optimized gating system was presented based on visualizing temperature field and cloud map of solid fraction.Practical production was conducted.Qualified pure copper electrode was successfully produced based on the optimized parameters

and its electric conductivity reached 56MS/m

meeting the technological requirements.