通过结晶器水模实验对3种粒径的夹杂物在不同水流量、气流量和透气方式下的去除进行了模拟.结果表明:在临界水流量之前,夹杂物的去除率迅速下降;随着临界水流量继续增加,去除率缓慢增加.吹入气体后,夹杂物的去除率比不吹气时均有小幅提高.随着气量的增加,去除率较为平缓,这是受夹杂物被气泡俘获的概率、气泡区域和数量分布等因素影响而造成的.
参考文献
[1] | 王建昌,张永亮,段建平.80 t转炉-钢包吹氩-连铸冶炼过程对Q235A钢气体夹杂含量的影响[J].特殊钢,2008(01):57-59. |
[2] | 唐海燕,李京社,杨树峰,孙开明,温德松.EAF-LF/VD-CC工艺生产压力容器钢的洁净度研究[J].钢铁,2008(01):30-32,54. |
[3] | 雷洪,赫冀成.板坯连铸机内钢液流动和夹杂物碰撞长大行为[J].金属学报,2007(11):1195-1200. |
[4] | Yuji Miki;Brian G. Thomas .Modeling of inclusion removal in a tundish[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1999(4):639-654. |
[5] | Lifeng Zhang;Brian G. Thomas .Numerical simulation on inclusion transport in continuous casting mold[J].Journal of University of Science and Technology Beijing,2006(4):293-300. |
[6] | Zhang L F;Aoki J;Thomas B G .Inclusion Removal by Bub-ble Flotation in a Continuous Casting Mold[J].Metallurgical and Materials Transactions,2006,37B:361. |
[7] | Yuan Q;Thomas B G;Vanka S P .Computational and Experi-mental Study of Turbulent Flow in a 0.4-Scale Water Model of a Continuous Steel caster[J].Metallurgical and Materials Transactions B,2004,35B:703. |
[8] | Thomas B G;Huang X;Sussman R C .Simulation of Argon Gas Flow Effects in a Continuous Slab Caster[J].MetallUrgi-cal Transactions B,1994,25B(04):527. |
[9] | Yogeshwar SAHAI;Toshihiko EMI .Criteria for Water Modeling of Melt Flow and Inclusion Removal in Continuous Casting Tundishes[J].ISIJ International,1996(9):1166-1173. |
[10] | 张先棹.冶金传输原理[M].北京:冶金工业出版社,1988:163. |
[11] | 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,1994:224. |
[12] | Zhang L F;Yang S B;Cai K K.Investigation of Fluid Flow and Steel Cleanliness in the Continuous Casting Strand[J].Metallurgical and Materials Transactions B The Miner-als Metals and Materials Society and ASM International,2007 |
[13] | Jung-Soo CHO;Hae-Geon LEE .Cold Model Study on Inclusion Removal from Liquid Steel Using Fine Gas Bubbles[J].ISIJ International,2001(2):151-157. |
[14] | 于海岐,朱苗勇.板坯连铸结晶器电磁制动和吹氩过程的多相流动现象[J].金属学报,2008(05):619-625. |
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%