铸造2025，Vol.74Issue(12)：1597-1605,9.
耐压铝合金套筒低压铸造数值模拟分析与工艺设计
Numerical Simulation Analysis and Process Design of Low Pressure Casting of Pressure-Resistant Aluminum Alloy Sleeve
摘要
Abstract
The mold filling and solidification processes of A356 aluminum alloy sleeve castings of pressure vessels by using of low pressure casting method had been analyzed by Flow-3D software,and the casting process scheme was subsequently designed.Through optimizing the production process parameters such as pouring temperature,mold temperature,pressure and so on,a optimized production process scheme was obtained as follows:six ingates evenly distributed at the bottom of the flange;the chill thicknesses accounting for 40％ of the casting wall thicknesses;a pressure rise rate of 376 Pa/s;a mold temperature of 100℃;and a pouring temperature of 700℃.The aluminum alloy sleeve castings produced exhabit good appearance.The mechanical properties,chemical compositions of the separately cast test bars after heat treatment and the air tightness of the sleeve castings are in line with the acceptance standard of aluminum alloy pressure vessel,showing that the low pressure casting process is reasonable and reliable.关键词
耐压铝合金套筒/Flow-3D软件/低压铸造/工艺设计/生产验证Key words
pressure-resistant aluminum alloy sleeve/Flow-3D/low pressure casting/process design/production verification分类
矿业与冶金引用本文复制引用
吴明琦,杨慕尧,杨军,王晓宇,艾秀兰..耐压铝合金套筒低压铸造数值模拟分析与工艺设计[J].铸造,2025,74(12):1597-1605,9.基金项目
大型铝合金铸件成品率影响因素研究(联合开放基金:2021-KF-15-02). （联合开放基金:2021-KF-15-02）
