薄板坯二冷區電磁攪拌鑄坯內磁場分布和鋼液流動

宋小鵬; 程樹森; 張利君; 程子建; 張鵬; 張志華

doi:10.13374/j.issn1001-053x.2012.11.015

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薄板坯二冷區電磁攪拌鑄坯內磁場分布和鋼液流動

doi: 10.13374/j.issn1001-053x.2012.11.015

宋小鵬^1,2, ,,
程樹森^1,2,
張利君³,
程子建^1,2,4,
張鵬^1,2,
張志華^1,2

1. 北京科技大學鋼鐵冶金新技術國家重點實驗室, 北京 100083;
2. 北京科技大學冶金與生態工程學院, 北京 100083;
3. 首鋼技術研究院寬厚板研究所, 北京 100043;
4. 酒泉鋼鐵集團宏興股份有限公司, 嘉峪關 735100

詳細信息

通訊作者:
宋小鵬,E-mail:songxp03@163.com

中圖分類號: TF777.1
計量
- 文章訪問數: 142
- HTML全文瀏覽量: 25
- PDF下載量: 9
- 被引次數: 0
出版歷程
- 收稿日期: 2011-12-21
- 網絡出版日期: 2021-07-30

Fluid flow and magnetic field in the secondary cooling zone of thin slabs with linear electromagnetic stirring

1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. Wide and Heavy Plate Research Department, Shougang Technology Institute, Beijing 100043, China;
4. Hongxing Joint Stock Company, Jiuquan Iron & Steel (Group) Co. Ltd., Jiayuguan 735100, China

摘要

摘要: 針對特定設計的攪拌器建立了包含鋼液流動、傳熱和電磁場的三維耦合非穩態數學模型,計算了CSP薄板坯二冷區液芯在電磁攪拌作用下的傳輸行為,其中考慮了感應電流和攪拌器線圈上下端部對磁場強度的影響.結果表明:電磁力改變了鑄坯液相穴內鋼液流場,對鋼液起到水平攪拌作用;攪拌器產生的磁場不均勻,在不同厚度處幅度和相位都不同,且幅度隨著穿透深度的增加而減小;感應磁場移動方向與外部磁場相同且不宜忽略;單側攪拌器對鑄坯內鋼液攪拌比較均勻.
- 連鑄 /
- 板坯 /
- 電磁攪拌 /
- 數值分析 /
- 速度分布 /
- 凝固
Abstract: A three-dimensional unsteady mathematical model,which is coupled with the turbulent flow,temperature field and magnetic field,was established to analyze the special stirrer.Then,the fluid flow in the secondary cooling zone of a thin slab by compact strip production(CSP) was calculated under electromagnetic stirring,and the effects of induced current and the ends of the stirrer coil on the magnetic field were considered in this calculation.The results show that the flow field of molten steel in the secondary cooling zone is changed by electromagnetic force,leading to horizontal recirculation flow within the stirring zone.The magnetic field generated by the stirrer is uneven because its magnitude and phase vary with penetration depth,and its magnitude decreases with increasing penetration depth.The induced magnetic field caused by fluid motion linearly moves in the direction of the external field and should not be ignored.Molten steel could be uniformly stirred by a one-sided stirrer.
- continuous casting /
- slabs /
- electromagnetic stirring /
- numerical analysis /
- velocity distribution /
- solidification