电磁制动对CSP漏斗形结晶器开浇过程影响的数值模拟

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (0 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要建立了描述电磁制动(EMBr)下CSP漏斗形结晶器开浇过程暂态流动现象的三维数学模型，研究不同磁场强度对开浇过程中结晶器内流场影响。利用流体体积方法(VOF)捕捉钢液-空气界面。采用动网格模型实现引锭杆的移动。研究结果表明：电磁场可显著抑制钢液湍流流动，降低引锭杆启动瞬间的弯月面波动；开浇过程电磁制动的使用可改善拉坯过程中结晶器内钢液流态；电磁制动的使用可将自由稳定时间提前约10s；使用电磁制动可明显减轻漏斗形结晶器内钢液偏流现象。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	徐绵广
	项利
	付兵
	仇圣桃

关键词 ： CSP, 薄板坯连铸, 漏斗形结晶器, 电磁制动, 数值模拟

Abstract：A three-dimensional mathematical model was established to investigate the transient flow phenomena of molten steel during the casting start period with electromagnetic brake (EMBr). An algorithm of VOF has been employed to simulate the air/steel interface. Use dynamic mesh to control the movement of dummy bar. The results show that, the electromagnetic field can significantly restrain the turbulent flow of molten steel and the fluctuation of the surface at the time of the dummy bar moving; the EMBr can optimize the flow pattern in the mold; the stabilization of the free surface may come earlier by 10 seconds with EMBr; the EMBr provides a positive effect to reduce the flow deviation of molten steel in the funnel-type mould.

收稿日期: 2013-01-29 出版日期: 2014-01-20

PACS:

TF 777.7

引用本文:

徐绵广，刘和平，项利，仇圣桃. 电磁制动对CSP漏斗形结晶器开浇过程影响的数值模拟[J]. 钢铁, 2014, 49(1): 28-33. XU Mian-guang,LIU He-ping,XIANG Li,QIU Sheng-tao. Numerical Simulation of Transient Fluid Flow During Casting Start Period in the CSP Funnel-Type Mold With Electromagnetic Brake. Iron and Steel, 2014, 49(1): 28-33.

链接本文:

http://www.chinamet.cn/Jweb_gt/CN/ 或 http://www.chinamet.cn/Jweb_gt/CN/Y2014/V49/I1/28

[1]	徐绵广, 刘和平, 仇圣桃. CSP连铸机漏斗形结晶器开浇过程中暂态流动现象的数值模拟[J]. 过程工程学报, 2012, 12 (6): 940-945.
[1]	徐绵广, 刘和平, 仇圣桃. CSP连铸机漏斗形结晶器开浇过程中暂态流动现象的数值模拟[J]. 过程工程学报, 2012, 12 (6): 940-945.
[2]	Wang Y F, Zhang L F. Transient Fluid Flow Phenomena during Continuous Casting: Part I. Cast Start[J]. ISIJ Int., 2010, 50 (12): 1777-1782.
[2]	Wang Y F, Zhang L F. Transient Fluid Flow Phenomena during Continuous Casting: Part I. Cast Start[J]. ISIJ Int., 2010, 50 (12): 1777-1782.
[3]	Kubo N, Ishii T, Kubota J, et al. Two-phase Flow Numerical Simulation of Molten Steel and Argon Gas in a Continuous Casting Mold[J]. ISIJ Int., 2002, 42 (11): 1251-1258.
[3]	Kubo N, Ishii T, Kubota J, et al. Two-phase Flow Numerical Simulation of Molten Steel and Argon Gas in a Continuous Casting Mold[J]. ISIJ Int., 2002, 42 (11): 1251-1258.
[4]	Zhang L F, Wang Y F, Zuo X J. Flow Transport and Inclusion Motion in Steel Continuous Casting Mold under Submerged Entry Nozzle Clogging Condition[J]. Metall. and Mater. Trans. B, 2008, 39 (8), 534-550.
[4]	Zhang L F, Wang Y F, Zuo X J. Flow Transport and Inclusion Motion in Steel Continuous Casting Mold under Submerged Entry Nozzle Clogging Condition[J]. Metall. and Mater. Trans. B, 2008, 39 (8), 534-550.
[5]	Thomas B G, Zhang L F. Mathematical Modeling of Fluid Flow in Continuous Casting[J]. ISIJ Int., 2001, 41 (10): 1181-1193.
[5]	Thomas B G, Zhang L F. Mathematical Modeling of Fluid Flow in Continuous Casting[J]. ISIJ Int., 2001, 41 (10): 1181-1193.
[6]	Nagai J, Suzuki K, Kojima S, et al. Steel Flow Control in a High Speed Continuous Slab Caster Using an Electromagnetic Brake[J]. Iron Steel Eng, 1984, 41 (5): 41-47.
[6]	Nagai J, Suzuki K, Kojima S, et al. Steel Flow Control in a High Speed Continuous Slab Caster Using an Electromagnetic Brake[J]. Iron Steel Eng, 1984, 41 (5): 41-47.
[7]	Wang Y F, Zhang L F. Steel quality improvement using EMBr at the continuous casting mold: Modeling and practice[C]. Proceedings of AISTech conference. St. Louis, 2009: 559-571.
[7]	Wang Y F, Zhang L F. Steel quality improvement using EMBr at the continuous casting mold: Modeling and practice[C]. Proceedings of AISTech conference. St. Louis, 2009: 559-571.
[8]	Li B W, Tsukihashi. Effect of Static Magnetic Field Application on the Mass Transfer in Sequence Slab Continuous Casting Process[J]. ISIJ Int., 2001, 41 (8): 844-850.
[8]	Li B W, Tsukihashi. Effect of Static Magnetic Field Application on the Mass Transfer in Sequence Slab Continuous Casting Process[J]. ISIJ Int., 2001, 41 (8): 844-850.
[9]	Cukierski K, Thomas B G. Flow Control with Local Electromagnetic Braking in Continuous Casting of Steel Slabs[J]. Metall. and Mater. Trans. B, 2008 (39), 94-107.
[9]	Cukierski K, Thomas B G. Flow Control with Local Electromagnetic Braking in Continuous Casting of Steel Slabs[J]. Metall. and Mater. Trans. B, 2008 (39), 94-107.
[10]	Wang Y F, Zhang L F. Fluid Flow-Related Transport Phenomena in Steel Slab Continuous Casting Strands under Electromagnetic Brake[J]. Metall. and Mater. Trans. B, 2011, 42 (12): 1319-1351.
[10]	Wang Y F, Zhang L F. Fluid Flow-Related Transport Phenomena in Steel Slab Continuous Casting Strands under Electromagnetic Brake[J]. Metall. and Mater. Trans. B, 2011, 42 (12): 1319-1351.
[11]	Wang Y F, Dong A P, Zhang L F. Effect of Slide Gate and EMBr on the Transport of Inclusions and Bubbles in Slab Continuous Casting Strands[J]. Steel Res. Int., 2011, 82 (4): 428-439.
[11]	Wang Y F, Dong A P, Zhang L F. Effect of Slide Gate and EMBr on the Transport of Inclusions and Bubbles in Slab Continuous Casting Strands[J]. Steel Res. Int., 2011, 82 (4): 428-439.
[12]	李宝宽, 赫冀成, 贾光霖, 等. 薄板坯连铸结晶器内钢液流场电磁制动的模拟研究[J]. 金属学报, 1997, 33 (11): 1207-1214.
[12]	李宝宽, 赫冀成, 贾光霖, 等. 薄板坯连铸结晶器内钢液流场电磁制动的模拟研究[J]. 金属学报, 1997, 33 (11): 1207-1214.
[13]	Li B K, Tsukihashi F. Effects of Electromagnetic Brake on Vortex Flows in Thin Slab Continuous Casting Mold[J]. ISIJ Int., 2006, 46 (12): 1833-1838.
[13]	Li B K, Tsukihashi F. Effects of Electromagnetic Brake on Vortex Flows in Thin Slab Continuous Casting Mold[J]. ISIJ Int., 2006, 46 (12): 1833-1838.
[14]	刘光穆, 石绍清, 邓康, 等. 电磁制动对CSP结晶器内夹杂物行为的影响[J]. 钢铁, 2007, 42 (7): 22-25.
[14]	刘光穆, 石绍清, 邓康, 等. 电磁制动对CSP结晶器内夹杂物行为的影响[J]. 钢铁, 2007, 42 (7): 22-25.
[15]	Tian X Y, Li B W, He J C. Electromagnetic Brake Effects on the Funnel Shape Mold of a Thin Slab Caster Based on a New Type Magnet[J]. Metall. and Mater. Trans. B, 2009, 40 (8), 596-604.
[15]	Tian X Y, Li B W, He J C. Electromagnetic Brake Effects on the Funnel Shape Mold of a Thin Slab Caster Based on a New Type Magnet[J]. Metall. and Mater. Trans. B, 2009, 40 (8), 596-604.
[16]	Liu H P, Yang C Z, Zhang H, et al. Numerical Simulation of Fluid Flow and Thermal Characteristics of Thin Slab in the Funnel-Type Molds of Two Casters[J]. ISIJ Int., 2011, 51 (3): 392-401.
[16]	Liu H P, Yang C Z, Zhang H, et al. Numerical Simulation of Fluid Flow and Thermal Characteristics of Thin Slab in the Funnel-Type Molds of Two Casters[J]. ISIJ Int., 2011, 51 (3): 392-401.
[17]	徐绵广, 刘和平, 仇圣桃, 等. 宽度对CSP漏斗形结晶器电磁制动效果影响的数值模拟[J]. 钢铁, 2013
[17]	徐绵广, 刘和平, 仇圣桃, 等. 宽度对CSP漏斗形结晶器电磁制动效果影响的数值模拟[J]. 钢铁, 2013
[18]	Hanao M, Kawamoto M, Yamanaka A. Growth of Solidified Shell Just below the Meniscus in Continuous Casting Mold[J]. ISIJ Int.., 2009, 49 (3): 365-374.
[18]	Hanao M, Kawamoto M, Yamanaka A. Growth of Solidified Shell Just below the Meniscus in Continuous Casting Mold[J]. ISIJ Int.., 2009, 49 (3): 365-374.