空调压缩机ADC12前盖挤压铸造工艺优化

王光亮; 杨海波; 陈学文; 范卫忠

doi:10.15980/j.tzzz.2014.05.007

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空调压缩机ADC12前盖挤压铸造工艺优化
Process Optimization of Squeeze Casting ADC12 Air Conditioning Compressor Front Cover
2014年34卷第5期页码：486-488
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.05.007

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[1]王光亮,杨海波,陈学文,范卫忠.空调压缩机ADC12前盖挤压铸造工艺优化[J].特种铸造及有色合金,2014,34(05):486-488.

Wang Guangliang, Yang Haibo, Chen Xuewen, et al. Process Optimization of Squeeze Casting ADC12 Air Conditioning Compressor Front Cover[J]. Special Casting & Nonferrous Alloys, 2014,34(5):486-488.
[1]王光亮,杨海波,陈学文,范卫忠.空调压缩机ADC12前盖挤压铸造工艺优化[J].特种铸造及有色合金,2014,34(05):486-488. DOI： 10.15980/j.tzzz.2014.05.007.

Wang Guangliang, Yang Haibo, Chen Xuewen, et al. Process Optimization of Squeeze Casting ADC12 Air Conditioning Compressor Front Cover[J]. Special Casting & Nonferrous Alloys, 2014,34(5):486-488. DOI： 10.15980/j.tzzz.2014.05.007.

摘要

运用ProCAST对空调压缩机前盖挤压铸造工艺进行仿真分析

预测到当浇注温度为660℃

模具预热温度为200℃

充型速度为150mm/s

挤压压力为70MPa时

铸件在充型过程中出现卷气及缩孔缺陷。试验结果表明

降低充型速度可以使充型过程金属液液面高度差减小

当充型速度降低至100mm/s时

卷气缺陷得以消除;增大挤压压力及升高模具预热温度都有助于缩孔减少

但调整后中心孔部位仍有缩孔出现

将中心孔部位在浇注过程中预留一定挤压余量进行二次加压后缩孔缺陷消除。

Abstract

Squeeze casting process of the air conditioning compressor front cover was simulate by using ProCast software to predict entrapment-gas and shrinkage defects in the filling process with the pouring temperature of 660℃

the mold preheating temperature of 200℃and the pouring velocity of 150mm/s as well as the squeezing pressure of 70MPa.Liquid height difference in filling process can be narrowed through decreasing filling velocity.Entrapment gas in the castings can be eliminated with filling velocity of 100mm/s.With increasing in pressure and in die preheating temperature

shrinkage porosity is reduced.However

shrinkage porosity area occurs in the center after adjusting process parameters. Through imposing a secondary pressure on the central part

shrinkage porosity is eliminated.