| 大方坯凝固过程鼓肚应变及内裂纹形成的研究 |
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| 引用本文： | 刘岩军,陈伟庆,智建国.大方坯凝固过程鼓肚应变及内裂纹形成的研究[J].包钢科技,2006,32(2):24-26. |
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| 作者姓名： | 刘岩军 陈伟庆 智建国 |
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| 作者单位： | 1. 北京科技大学,北京,100083
2. 包钢(集团)公司技术中心,内蒙古,包头,014010 |
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| 摘 要： | 通过建立大方坯凝固过程的传热模型,获得大方坯冷却传热过程的主要凝固参数,在此基础上建立了凝固前沿坯壳所承受的应变模型,讨论了大方坯凝固过程的主要应变及其主要影响因素,并针对实际铸机的设备和工艺状况,计算大方坯凝固过程的鼓肚应变,讨论了具体钢种产生裂纹的可能性.
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| 关 键 词： | 方坯连铸 凝固 应变 内裂纹 临界应变 方坯凝固过程 鼓肚 应变模型 裂纹形成 研究 Solidification Bloom during Internal Crack Strain Bulge Formation 计算 工艺状况 设备 铸机 影响因素 坯壳 凝固参数 传热过程 |
| 文章编号： | 1009-5438（2006）02-0024-03 |
| 收稿时间： | 2005-10-17 |
| 修稿时间： | 2005-10-17 |
Research on the Formation of Bulge Strain and Internal Crack during Bloom Solidification |
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| LIU Yan-jun,CHEN Wei-qing,ZHI Jian-guo.Research on the Formation of Bulge Strain and Internal Crack during Bloom Solidification[J].Science & Technology of Baotou Steel(Group) Corporation,2006,32(2):24-26. |
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| Authors: | LIU Yan-jun CHEN Wei-qing ZHI Jian-guo |
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| Abstract: | Main solidification parameters are obtained through the establishment of the heat- transfer model of bloom solidification, and on the basis of which the strain model of solidification boundary bearing is set up. The main strain and the chief influential factors during the solidification of the bloom are discussed in this papel. And the bulge strain during the solidification of bloom is calculated and the possibility of cracks forming on certain steel grades is discussed according to the actual casting equipment and techniques. |
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| Keywords: | bloom casting solidification strain internal cracks critical strain |
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