| 铸钢件凝固过程热裂纹数值模拟及预测 |
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| 引用本文： | 党惊知,徐宏.铸钢件凝固过程热裂纹数值模拟及预测[J].兵工学报,1999,20(1):55-57. |
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| 作者姓名： | 党惊知 徐宏 |
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| 作者单位： | 华北工学院 |
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| 摘 要： | 根据铸钢件凝固过程三维温度场模拟和热裂纹形成的理论分析，提出了一种考虑凝固速度，补缩能力因素的热裂纹预测判据。在凝固过程温度场数值模拟的基础上，利用预测判据对实验铸件和实际铸件的热裂进行了预测，预测与实际结果吻合。
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| 关 键 词： | 模拟 判据 铸钢件 热裂纹 |
PREDICTION OF THERMAL CRACKING IN STEEL CASTINGS AND ITS NUMERICAL SIMULATION |
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| Dang Jingzhi,Xu Hong,Li Li,Cheng Jun.PREDICTION OF THERMAL CRACKING IN STEEL CASTINGS AND ITS NUMERICAL SIMULATION[J].Acta Armamentarii,1999,20(1):55-57. |
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| Authors: | Dang Jingzhi Xu Hong Li Li Cheng Jun |
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| Abstract: | Based on 3 D thermal field simulation and theoretical analysis of thermal crack formation, a criterion for the prediction of thermal cracks is proposed, in which the solidification rate and ability of feeding are considered. Three experimental castings and an actual casting were made to verify the practicability of the criterion. The results show that the proposed criterion can be used to predict quite closely defects in steel castings. |
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| Keywords: | simulation thermal crack criterion |
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