为研究水口部分堵塞和磁场对板坯连铸结晶器流场以及夹杂物去除的影响,引入滑板控流模拟水口部分堵塞现象,通过商业软件FLUENT进行结晶器流场的三维数值仿真计算.计算结果显示:未施加磁场时,滑板开启80%时,非金属夹杂物颗粒的去除率最高;加入磁场后,结晶器内钢液流态和夹杂物去除率发生改变;在自由液面下350mm处施加一静磁场,能提高细小非金属夹杂物颗粒的去除率,此时滑板开启率的变化和磁场大小的改变对夹杂物颗粒去除的影响较小.
参考文献
[1] | Haiqi YU;Miaoyong ZHU .Numerical Simulation of the Effects of Electromagnetic Brake and Argon Gas Injection on the Three-dimensional Multiphase Flow and Heat Transfer in Slab Continuous Casting Mold[J].ISIJ International,2008(5):584-591. |
[2] | Baokuan Ll;Fumitaka TSUKIHASHI .Effects of Electromagnetic Brake on Vortex Flows in Thin Slab Continuous Casting Mold[J].ISIJ International,2006(12):1833-1838. |
[3] | KIM W;KIM D;CHO K .Numerical Simulation of the Coupied Turbulent Flow and Macroscopic Solidification in Continuous Casting With Electromagnetic Brake[J].ISIJ International,2000,40(07):670. |
[4] | R. CHAUDHARY;GO-GI LEE;B.G. THOMAS .Transient Mold Fluid Flow with Well- and Mountain-Bottom Nozzles in Continuous Casting of Steel[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2008(6):870-884. |
[5] | BAOKUAN LI;TOSHIMITSU OKANE;TAKATERU UMEDA .Modeling of Biased Flow Phenomena Associated with the Effects of Static Magnetic-Field Application and Argon Gas Injection in Slab Continuous Casting of Steel[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(6):1053-1066. |
[6] | AOKI J;ZHANG L;THOMAS B G .Inclusion Removal by Bubble Flotation in a Continuous Casting Mold[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,2006,37B:361. |
[7] | 刘太楷,张小伟,王治国,邓康,任忠鸣.滑板水口对板坯连铸中流场及夹杂物去除的影响[J].连铸,2010(02):13-17,43. |
[8] | 张小伟,王赟,李伟轩,邓康,雷作胜,任忠鸣.板坯连铸机滑动水口出流特征的数学模拟(Ⅰ)[J].过程工程学报,2008(z1):17-21. |
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%