针对气泡在结晶器内运动引起的板坯质量问题.使用离散相模型和水力学物理模拟相结合的方法,对气泡的分布特征和行为进行了研究.结果表明,水口出口面积和角度一定时,水流量是影响双回流区内气泡分布状态的决定性因素,可以控制拉速来控制气泡分布状态.随着直径的减小,气泡在液体内停留时间和运动行程增加,在钢液中的氩气泡直径应以0.75～1 mm为宜.
参考文献
| [1] | HUA BAI;BRIAN G. THOMAS .Bubble Formation during Horizontal Gas Injection into Downward-Flowing Liquid[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(6):1143-1159. |
| [2] | R. SANCHEZ-PEREZ;R. D. MORALES;L. GARCIA-DEMEDICES .Dynamics of Coupled and Uncoupled Two-Phase Flows in a Slab Mold[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2004(1):85-99. |
| [3] | Noriko KUBO;Toshio ISHII;Jun KUBOTA;Norichika ARAMAKI .Two-phase Flow Numerical Simulation of Molten Steel and Argon Gas in a Continuous Casting Mold[J].ISIJ International,2002(11):1251-1258. |
| [4] | Lifeng Zhang;Jun Aoki;Brian G. Thomas .Inclusion Removal by Bubble Flotation in a Continuous Casting Mold[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2006(3):361-379. |
| [5] | 倪冰,林媛,罗志国,狄瞻霞,邹宗树.板坯连铸结晶器水模内气泡运动的实验研究[J].材料与冶金学报,2008(04):249-253,257. |
| [6] | 徐海伦,文光华,唐萍,陈志平,韩乃川.板坯连铸结晶器内吹氩参数优化[J].钢铁研究学报,2008(03):13-17. |
| [7] | 蔡开科;程士富.连续铸钢原理与工艺[M].北京:冶金工业出版社,1994 |
| [8] | 黄奥,汪厚植,张美杰,顾华志,张慧民.底吹中间包气泡形成过程的数模研究[J].武汉科技大学学报（自然科学版）,2007(04):353-356. |
| [9] | 朱苗勇;萧泽强.钢的精炼过程数学物理模拟[M].北京:冶金工业出版社,1998 |
| [10] | Gert A;Wout D .Argon Bubble in Slabs[J].ISIJ International,1996,36(zk):219. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%