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大圆坯连铸结晶器电磁偏心搅拌的数值模拟 被引量:5

Numerical Simulation of Electromagnetic Field in a Round Bloom Continuous Casting Mould with Eccentric Electromagnetic Stirring
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摘要 建立了描述大圆坯连铸结晶器电磁搅拌过程电磁场的三维数学模型,并采用实测数据对模型的准确性进行了验证.研究了不同搅拌电流强度和频率下,磁感应强度与电磁力的变化规律,并重点分析了偏心搅拌下磁感应强度和电磁力的分布特点.结果表明:磁感应强度和电磁力均随搅拌电流强度的增大而增强;随着搅拌电流频率的增大,磁感应强度逐渐减弱,而电磁力先增强后减弱,并在2.5 Hz时达到最大值;偏心搅拌时,电磁力在铸坯横截面上仍呈周向分布,但电磁力和磁感应强度的大小都出现了不对称分布,在靠外弧的一侧更大. A three-dimensional mathematical model was developed to study the electromagnetic field in a round bloom continuous casting mould with electromagnetic stirring (M-EMS). The simulation results of electromagnetic field were validated by the measured data from the experiments. The effects of stirring current intensity and frequency on magnetic flux density and electromagnetic force were investigated, and the electromagnetic field characteristics were also discussed after applying eccentric M-EMS. The results show that both magnetic flux density and electromagnetic force increase with increasing current intensity. When the stirring current frequency increases, the magnetic flux density decreases and the electromagnetic force increases first and then decreases with the maxima at 2.5 Hz. Under the conditions of eccentric M-EMS, the electromagnetic force still appears to be circumferential distribution on the planes transverse to the strand. However, the magnitudes of both magnetic flux density and electromagnetic force show asymmetrical distribution, which are much larger at the side near the external arc of the continuous caster.
出处 《东北大学学报(自然科学版)》 EI CAS CSCD 北大核心 2016年第6期820-823,833,共5页 Journal of Northeastern University(Natural Science)
基金 国家自然科学基金资助项目(51374260)
关键词 连铸 电磁搅拌 大圆坯 偏心搅拌 电磁场 continuous casting electromagnetic stirring round bloom eccentric stirring electromagnetic field
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参考文献9

  • 1Cramb A W.The making,shaping and treating of steel[M].Warrendale:Association for Iron Steel Technology,2003.
  • 2BARNAMartin,JAVUREK Mirko,REITER Jurgen,WATZINGER Josef,KAUFMANN Bernhard,HACKL Gemot.Simulation of Mould Level Velocities During Continuous Casting of Round Bloom Strands With Mould-Electromagnetic Stirring[J].Journal of Iron and Steel Research International,2012,19(S2):884-887. 被引量:4
  • 3于洋,李宝宽.钢连铸电磁搅拌工艺中电磁力的计算[J].金属学报,2006,42(5):540-544. 被引量:17
  • 4Chang F C,Hull J R,Beitelman L.Simulation of flow control in the meniscus of a continuous casting mold with opposing alternating current magnetic fields[J].Metallurgical and Materials Transactions B,2004,35(6):1129-1137.
  • 5Natarajan T T,El-Kaddah N.Finite element analysis of electromagnetic and fluid flow phenomena in rotary electromagnetic stirring of steel[J].Applied Mathematical Modelling,2004,28(1):47-61.
  • 6Yu H Q, Zhu M Y. Three-dimensional magnetohydrodynamic calculation for coupling multiphase flow in round billet continuous casting [ J ]. IEEE Transactions on Magnetics, 2010,46( 1 ) :82 - 86.
  • 7Liu H P,Xu M G, Qiu S T, et al. Numerical simulation of fluid flow in a round bloom mold with in-mold rotary electromagnetic stLrring [ J ]. Metallurgical and Materials Transactions B,2012,43 (6) : 1657 - 1675.
  • 8任兵芝,朱苗勇,王宏丹,陈永.大方坯连铸结晶器电磁搅拌三维电磁场与流场的数值模拟[J].金属学报,2008,44(4):507-512. 被引量:28
  • 9Trindade L B,Vilela A C F, Filho A F F, et al. Numerical model of electromagnetic stirring for continuous casting billets[ J~. IEEE Transactions on Magnetics, 2002,38 ( 6 ) : 3658 - 3660.

二级参考文献28

  • 1张琦,金俊泽,王同敏,李廷举,郭庆涛.金属液在旋转电磁搅拌器作用下的流动分析[J].中国有色金属学报,2007,17(1):98-104. 被引量:33
  • 2李建超,崔建忠,王宝峰,麻永林.小方坯连铸结晶器电磁搅拌的数值模拟[J].炼钢,2007,23(1):35-39. 被引量:18
  • 3Spizer K H,Dubke M,Schwerdtfeger K.Metall Trans,1986; 17B:119.
  • 4Meyer J L,Szekely J,Ei-Kaddah N.Trans ISIJ,1987; 27:25.
  • 5Natarajan T T,Ei-Kaddah N.ISIJ Int,1998; 38:680.
  • 6Nasar S A,Boldea I.Linear Motion Electric Machines.Hoboken,NJ:John Wiley and Sons,1976:215.
  • 7Ueyama T,Shinkura K,Ueda R.IEEE Trans Magn,1989;25:4153.
  • 8Gliere A,Masse P.IEEE Trans Magn,1988; 24:252.
  • 9Spizer K H,Schwerdtfeger K.Iron Steelmaker,1990; 17:57.
  • 10Chung S I,Shin Y H,Yoon J K.Trans ISIJ,1992; 32:1287.

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