| 气缸盖铸件凝固过程数值模拟及缩松缩孔预测 |
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| 引用本文： | 刘金祥,左正兴,廖日东. 气缸盖铸件凝固过程数值模拟及缩松缩孔预测[J]. 铸造技术, 2007, 28(2): 256-258 |
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| 作者姓名： | 刘金祥 左正兴 廖日东 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081 |
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| 摘 要： | 分析了铸件凝固过程结晶潜热释放和缩孔缩松形成条件,应用有限元法模拟了低压铸造铝合金气缸盖铸件的凝固过程,得到了在不同凝固阶段铸件的温度场,预测了铸件的缩松缩孔。在此基础上,对气缸盖铸件凝固过程进行了评价,数值模拟结果可为气缸盖铸造工艺参数设计提供参考。
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| 关 键 词： | 气缸盖 凝固过程 缩松缩孔 有限元法 |
| 文章编号： | 1000-8365(2007)02-0256-03 |
| 修稿时间： | 2006-09-16 |
Solidification Process Simulation and Shrinkage Cavity Prediction of Cylinder Head Casting |
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| LIU Jin-xiang,ZUO Zheng-xing,LIAO Ri-dong. Solidification Process Simulation and Shrinkage Cavity Prediction of Cylinder Head Casting[J]. Foundry Technology, 2007, 28(2): 256-258 |
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| Authors: | LIU Jin-xiang ZUO Zheng-xing LIAO Ri-dong |
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| Affiliation: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The latent heat releasing and the criterion for shrinkage cavity in solidification progress of casting are studied. A numerical analysis is presented for solidification progress of the cylinder head casting using finite element method. The temperature distributions of the casting in different solidification phases are solved, and the shrinkage cavity is predicted. Based on this, the solidification progress of casting is evaluated. The simulation results can offer a helpful reference for casting methoding design of cylinder head casting. |
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| Keywords: | Cylinder head Solidification process Shrinkage cavity Finite element Method |
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