Simulation Study of EMBr-Ruler Technology and V-EMBr Technology

doi:10.12068/j.issn.1005-3026.2016.08.012

Abstract

Abstract: In ANSYS14.5 and FLUNET6.3 computing platforms， distribution of magnetic flux density and flow field in the mold were simulated during the electromagnetic braking process of EMBr (electromagnetic brake)-Ruler and V-EMBr (vertical electromagnetic brake )， respectively. The calculation results show that EMBr-Ruler and V-EMBr can generate a constant and effective magnetic field in molten steel， and the magnetic flux density is mainly focused on the poles covered region. EMBr-Ruler and V-EMBr can control the mainstream of molten steel and promote flotation and removal of non-metallic inclusions and bubbles to improve the purity of the slab. V-EMBr can better control the upward flow which is formed after the narrow face of mold impacted by the mainstream， stabilize more effectively fluctuations of free surface and overcome the disadvantage of inadequate control upward flow with EMBr-Ruler. EMBr-Ruler can better control the downward flow， but the overall braking effect of V-EMBr and its metallurgical effect are more comprehensive and favorable.

Key words: continuous casting, mold, electromagnetic brake, magnetic field, flow field

CLC Number:

TF777.1

LI Fei， WANG En-gang， FENG Ming-jie. Simulation Study of EMBr-Ruler Technology and V-EMBr Technology[J]. Journal of Northeastern University Natural Science, 2016, 37(8): 1118-1122.

References

[1]倪升起，彭世恒，仇圣桃，等.电磁制动技术的发展及在板坯连铸结晶器中的应用［J］.连铸，2009，34(1):40-43.(Ni Sheng-qi，Peng Shi-heng，Qiu Sheng-tao，et al.Development of electromagnetic brake technique and application in slab continuous casting mold ［J］.Continuous Casting，2009，34(1):40-43.)
[2]赵勇慧.连铸过程中金属液流动的电磁控制［D］.大连:大连理工大学，2002.(Zhao Yong-hui.Electromagnetic control of molten metal flow in continuous casting process［D］.Dalian:Dalian University of Technology，2002.)
[3]Ji C B，Li J S，Tang H Y，et al.Effect of EMBr on flow in slab continuous casting mold and evaluation using nail dipping measurement ［J］.Steel Research International，2013，84(3):259-268.
[4]Cho S M，Kim S H，Thomas B G.Transient fluid flow during steady continuous casting of steel slabs:part II ［J］.ISIJ International，2014，54(4):855-864.
[5]Halldin A.The electromagnetic brake (EMBR) for slab continuous casting machines ［C］// Steelmaking Conference Proceedings.Atlanta:Iron and Steel Society of AIME，1983:123-126.
[6]Nagai J，Suzuki K I，Kojima S，et al.Steel flow control in a high-speed continuous slab caster using an electromagnetic brake ［J］.Iron and Steel Engineer，1984，61(5):41-47.
[7]Van der Plas D W，Moon W H L，Biesboer P.Metallurgical investigations of the EMBR on slab caster No.22 at Hoogovens Ijmuiden［C］//International Symposium on Electromagnetic Processing of Materials.Nagoya，1994:384-389.
[8]李菲，王恩刚，冯明杰.全幅一段电磁制动连铸结晶器内钢液的模拟研究［C］//第十八届全国炼钢学术会议.北京:中国金属学会炼钢分会，2014:150.(Li Fei，Wang En-gang，Feng Ming-jie.Simulation of molten steel in continuous casting mold with EMBr-Ruler［C］//The 18th CSM Annual Steelmaking Conference Proceedings.Beijing:Steelmaking Committee of CSM，2014:150.)
[9]Wang E G，Li F，He J C.Numerical simulation of magnetic field and fluid flow in continuous casting mold with vertical electromagnetic brake［C］//Proceedings of the 8th International PAMIR Conference on Fundamental and Applied MHD.Corsica，2011:683-687.
[10]Ha M Y，Lee H G，Seong S H.Numerical simulation of three-dimensional flow，heat transfer and solidification of steel in continuous casting mold with electromagnetic brake ［J］.Journal of Materials Processing Technology，2003，133(3):322-329.
[11]Launder B E，Spalding D E.The numerical computations of turbulent flow ［J］.Computer Method in Applied Mechanics and Engineering，1973(3):269-271.

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