| 低压铸造缩孔缩松判据预测技术 |
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| 引用本文： | 侯华,徐宏,程军. 低压铸造缩孔缩松判据预测技术[J]. 铸造技术, 2004, 25(10): 769-771 |
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| 作者姓名： | 侯华 徐宏 程军 |
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| 作者单位： | 1. 华北工学院材料科学工程系,山西,太原,030051
2. 北方工业集团公司科技部,北京,100087 |
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| 摘 要： | 本文考虑了压力对临界固相率的影响,提出了压力下的缩孔预测判据,及与压力、温度梯度和冷却速度相关的缩松预测判据,该判据已成功的应用于华北工学院铸造工程中心开发的Castsoft软件的低压铸造模块.
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| 关 键 词： | 缩孔缩松预测 低压铸造 数值模拟 |
| 文章编号： | 1000-8365(2004)10-0769-03 |
| 修稿时间： | 2004-04-06 |
The Technology of the Prediction of Shrinkage and Porosity during Low Pressure Casting Process |
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| HOU Hua,XU Hong,CHENG Jun. The Technology of the Prediction of Shrinkage and Porosity during Low Pressure Casting Process[J]. Foundry Technology, 2004, 25(10): 769-771 |
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| Authors: | HOU Hua XU Hong CHENG Jun |
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| Affiliation: | HOU Hua~1,XU Hong~1,CHENG Jun~2 |
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| Abstract: | In this paper, the influence of the pressure on the critical solid fraction was considered; the critical solid fraction method under the pressure condition was proposed to predict porosity. On the other hand, based on the darcy law, a new shrinkage prediction method related to pressure, temperature gradient and cooling rate was put out. The criterion had been successfully applied in the low-pressure casting module of castsoft, which had been developed by the casting centre of North China Institute of Technology. |
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| Keywords: | Shrinkage and porosity prediction Low-pressure casting Numerical simulation |
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