| 空心钢锭凝固过程温度场模拟与缩孔、疏松预测 |
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| 引用本文： | 张向琨,赵长春. 空心钢锭凝固过程温度场模拟与缩孔、疏松预测[J]. 铸造, 2000, 49(6): 343-348 |
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| 作者姓名： | 张向琨 赵长春 |
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| 作者单位： | [1]清华大学机械工程系 [2]第一重型机械集团公司铸造分厂 |
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| 基金项目： | 原机械工业部机械工业发展基金资助项目! (I 0 1 7) |
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| 摘 要： | 对空心钢锭凝固过程的温度场进行了有限元分析。讨论了芯部传热系数、耐火材料工对厚终凝固位置、内筒壁最高温度及缩孔疏松的影响，并研究了耐火材料典型部位的温度随凝固时间的变化。通过凝固过程的温度场的模拟分析，对空心钢锭缩孔、缩松进行了预测，提出了工艺改进措施。
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| 关 键 词： | 数值模拟 空心钢锭 凝固 温度场 缩孔 疏松 |
Numerical Simulation of Temperature Field of Hollow Ingot Solidification and Prediction of Shrinkage Cavity and Porosity |
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| ZHANG Xiang kun ,SHI Wei ,GAO Guo feng ,LIU Zhuang ,ZHAO Chang chun ,ZHAO Lin ,WANG Huan. Numerical Simulation of Temperature Field of Hollow Ingot Solidification and Prediction of Shrinkage Cavity and Porosity[J]. China Foundry, 2000, 49(6): 343-348 |
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| Authors: | ZHANG Xiang kun SHI Wei GAO Guo feng LIU Zhuang ZHAO Chang chun ZHAO Lin WANG Huan |
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| Affiliation: | ZHANG Xiang kun 1,SHI Wei 1,GAO Guo feng 1,LIU Zhuang 1,ZHAO Chang chun 2,ZHAO Lin 2,WANG Huan 2 |
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| Abstract: | Temperature field of hollow ingot solidification is simulated by FEM.Effects of heat transfer coefficient between inner sleeve and cooling medium and thickness of refractory on the final position of solidification,the highest temperature of inner sleeve against cooling medium and the shrinkage cavity and porosity are discussed.In addition,change of temperature in typical position of refractory with solidification time is given,the shrinkage cavity and porosity are predicted. |
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| Keywords: | numerical simulation hollow ingot solidification temperature field FEM cast defect |
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