金属学报  2011, Vol. 47 Issue (6): 763-768    DOI: 10.3724/SP.J.1037.2010.00690

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Ar气泡在连铸坯固/液界面处运动行为的物理模拟研究

金小礼,雷作胜,于湛,张浩斌,邓康,任忠鸣

上海大学上海市现代冶金与材料制备重点实验室, 上海 200072

PHYSICAL SIMULATION OF Ar BUBBLE BEHAVIOR IN THE SOLID/LIQUID INTERFACE OF CONTINUOUS CASTING BILLET

JIN Xiaoli, LEI Zuosheng, YU Zhan, ZHANG Haobin, DENG Kang, REN Zhongming

Shanghai Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai 200072

金小礼 雷作胜 于湛 张浩斌 邓康 任忠鸣. Ar气泡在连铸坯固/液界面处运动行为的物理模拟研究[J]. 金属学报, 2011, 47(6): 763-768.
, , , , , . PHYSICAL SIMULATION OF Ar BUBBLE BEHAVIOR IN THE SOLID/LIQUID INTERFACE OF CONTINUOUS CASTING BILLET[J]. Acta Metall Sin, 2011, 47(6): 763-768.

摘要 参考文献 相关文章 Metrics 全文: PDF(2990 KB)   摘要: 针对连铸过程中水口吹Ar工艺导致的铸坯缺陷, 利用Cu质水冷插针进行物理模拟实验, 研究了气泡在连铸坯固/液界面处的运动行为. 通过观察气泡在固/液界面的运动行为, 研究气泡被铸坯捕获机理. 同时, 对现场铸坯进行了取样分析, 发现弯月面处生长的枝晶是气泡被凝固坯壳捕获的一个重要因素, 进而提出生产中采用水口电磁制动和结晶器窄面处电磁搅拌的方法来改善铸坯质量, 减少气泡凝入铸坯. 关键词 ： 气泡,  连铸坯,  固/液界面,  模拟,  弯月面     Abstract：Ar gas was injected to the nozzle during continuous casting to prevent from nozzle clogging caused by solid inclusions, however, some gas bubbles were captured by the initial solidified billet shell, and subsequently billet defects were formed in final product. In present work, a physical model applying mold simulator was designed and used to investigate the bubble behavior in the solid/liquid interface. Different mold simulator angels and bubble diameters were considered, three typical behaviors were observed, some bubbles were captured by the solidified shell, several bubbles coalescence in the solid/liquid interface, and other bubbles stayed in the interface for a moment, and then left. The possible mechaism of gas bubble entrapped in solidified hell was anayzed. Besides, industial billets were studied, many dendites wee found around the hole, it was consdered to be a key factor for gas bubble engulfed in the solidification billets in the meniscus area. Further morethe effective technologes, such as electrical brake near the submerged entry nozzle and electrical stirring in the mold narrow face, can improve billet quality and reduce gas bubbles in solidified shewere imposed Key words： gas bubble    continuous casting billet    solid/liquid interface    simulation    meniscus 收稿日期: 2010-12-23      ZTFLH:  TF777   基金资助: 国家自然科学基金项目50874133和50604010及上海市科学技术委员会项目09QA1402200资助 作者简介: 金小礼, 男, 1981年生, 博士生 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 金小礼 雷作胜 于湛 张浩斌 邓康 任忠鸣 44.8K 链接本文: https://www.ams.org.cn/CN/10.3724/SP.J.1037.2010.00690      或      https://www.ams.org.cn/CN/Y2011/V47/I6/763 [1] Zhang L, Aoki J, Thomas B G. Metall Mater Trans, 2006; 37B: 361 [2] Pfeiler C, Wu M, Ludwig A. Mater Sci Eng, 2005; A413–414: 115 [3] Thomas B G, Huang X, Sussman R C. Metall Mater Trans, 1994; 25B: 527 [4] Singh V, Dash S K, Sunitha J S, Ajmani S K, Das A K. ISIJ Int, 2006; 46: 210 [5] Yu H Q, Zhu M Y. Acta Metall Sin, 2008; 44: 619 (于海岐, 朱苗勇. 金属学报, 2008; 44: 619) [6] Yu H Q, Zhu M Y. Acta Metall Sin, 2008; 44: 1141 (于海岐, 朱苗勇. 金属学报, 2008; 44: 1141) [7] Yu H X, Zhu G S, Wang X H, Zhang J M, Wang W J. J Univ Sci Technol Beijing, 2003; 25: 215 (于会香, 朱国森, 王新华, 张炯明, 王万军. 北京科技大学学报, 2003, 25: 215) [8] Zhang S J, Zhu M Y, Zhang Y L, Zheng G S, Cheng N L, Song J X. Acta Metall Sin, 2006; 42: 1087 (张胜军, 朱苗勇, 张永亮, 郑淑国, 程乃良, 宋景欣. 金属学报, 2006; 42: 1087) [9] Cao N, Zhu M Y. Acta Metall Sin, 2008; 44: 79 (曹 娜, 朱苗勇. 金属学报, 2008; 44: 79) [10] Cao N, Zhu M Y. Acta Metall Sin, 2008; 44: 626 (曹娜, 朱苗勇. 金属学报, 2008; 44: 626) [11] Feng W, Zhu C Y, Yu T J, Zhang H L, Liu C J, Jiang M F. Contin cast, 2007; (4): 4 (冯巍, 朱传运, 余挺进, 张红令, 刘承军, 姜茂发. 连铸, 2007; (4): 4) [12] Lei H, Zhu M Y, He J C. Int J Cast Met Res, 2007; 20: 98 [13] Esaka H, Kuroda Y, Shinozuka K, Tamura M. ISIJ Int, 2004; 44: 682 [14] Chen Z H, Wang E G, Zhang X W, He J C. Acta Metall Sin, 2007; 43: 422 (陈芝会, 王恩刚, 张兴武, 赫冀成. 金属学报, 2007; 43: 422) [15] Lei Z S, Zhang H B, Ren Z M, Deng K. J Iron Steel Res Int, 2008; 15(Suppl. 1): 538 [16] Yu Z, Zhang Z Q, Ren Z M, Lei Z S, Deng K. Acta Metall Sin, 2010; 46: 1275 (于湛, 张振强, 任忠鸣, 雷作胜, 邓康. 金属学报, 2010; 46: 1275) [1] 毕中南, 秦海龙, 刘沛, 史松宜, 谢锦丽, 张继. 高温合金锻件残余应力量化表征及控制技术研究进展[J]. 金属学报, 2023, 59(9): 1144-1158. [2] 陈佳, 郭敏, 杨敏, 刘林, 张军. 新型钴基高温合金中W元素对蠕变组织和性能的影响[J]. 金属学报, 2023, 59(9): 1209-1220. [3] 张海峰, 闫海乐, 方烽, 贾楠. FeMnCoCrNi高熵合金双晶微柱变形机制的分子动力学模拟[J]. 金属学报, 2023, 59(8): 1051-1064. [4] 张禄, 余志伟, 张磊成, 江荣, 宋迎东. GH4169高温合金热机械疲劳循环损伤机理及数值模拟[J]. 金属学报, 2023, 59(7): 871-883. [5] 王重阳, 韩世伟, 谢峰, 胡龙, 邓德安. 固态相变和软化效应对超高强钢焊接残余应力的影响[J]. 金属学报, 2023, 59(12): 1613-1623. [6] 陈凯旋, 李宗烜, 王自东, Demange Gilles, 陈晓华, 张佳伟, 吴雪华, Zapolsky Helena. Cu-2.0Fe合金等温处理过程中富Fe析出相的形态演变[J]. 金属学报, 2023, 59(12): 1665-1674. [7] 张开元, 董文超, 赵栋, 李世键, 陆善平. 固态相变对Fe-Co-Ni超高强度钢长臂梁构件焊接-淬火过程应力和变形的影响[J]. 金属学报, 2023, 59(12): 1633-1643. [8] 戚晓勇, 柳文波, 何宗倍, 王一帆, 恽迪. UN核燃料烧结致密化过程的相场模拟[J]. 金属学报, 2023, 59(11): 1513-1522. [9] 周小宾, 赵占山, 汪万行, 徐建国, 岳强. 渣-金界面气泡夹带行为数值物理模拟[J]. 金属学报, 2023, 59(11): 1523-1532. [10] 李赛, 杨泽南, 张弛, 杨志刚. 珠光体-奥氏体相变中扩散通道的相场法研究[J]. 金属学报, 2023, 59(10): 1376-1388. [11] 王孟, 杨永强, Trofimov Vyacheslav, 宋长辉, 周瀚翔, 王迪. 粉末粒径对AlSi10Mg合金选区激光熔化成形的影响[J]. 金属学报, 2023, 59(1): 147-156. [12] 高建宝, 李志诚, 刘佳, 张金良, 宋波, 张利军. 计算辅助高性能增材制造铝合金开发的研究现状与展望[J]. 金属学报, 2023, 59(1): 87-105. [13] 夏大海, 邓成满, 陈子光, 李天书, 胡文彬. 金属材料局部腐蚀损伤过程的近场动力学模拟：进展与挑战[J]. 金属学报, 2022, 58(9): 1093-1107. [14] 李彦强, 赵九洲, 江鸿翔, 何杰. Pb-Al合金定向凝固组织形成过程[J]. 金属学报, 2022, 58(8): 1072-1082. [15] 郭东伟, 郭坤辉, 张福利, 张飞, 曹江海, 侯自兵. 基于二次枝晶间距变化特征的连铸方坯CET位置判断新方法[J]. 金属学报, 2022, 58(6): 827-836. Viewed Full text Abstract Cited   Shared      Discussed