A 3D mathematical model of 180 mm × 220 mm billet continuous casting process has been established, which includes electromagnetic field, flow field, solidification and solute transport, and the effect of stirrer position on multiple physical fields distribution is investigated. The results show that, when the stirrer centre positions are located at Y = 515 mm, Y = 615 mm and Y = 715 mm, the growth of the solid shell near the stirrer centre slows down. And the solid shell is remelted and thinned at the mould exit for the stirrer centre position placed at Y = 815 mm. As the stirrer centre position is lowered, the carbon concentration at the mould top reduces gradually. Furthermore, when the stirrer centre position is moved from Y = 515 mm to Y = 815 mm, the carbon concentration on the surface of billet reduces from 0.00211 to 0.00197.
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References
1.
AyataKMoriTFujimotoTet al.Improvement of macrosegregation in continuously cast bloom and billet by electromagnetic stirring. Trans Iron Steel Inst Jpn. 1984;24(11):931–939.
2.
WillersBBarnaMReiterJet al.Experiment investigate of rotary electromagnetic mould stirring in continuous casting using a cold liquid metal model. ISIJ Int. 2017;57(3):468–477.
3.
WangSQToledoGADValimaaKet al.Magnetohydrodynamic phenomena, fluid control and computational modeling in the continuous casting of billet and bloom. ISIJ Int. 2014;54(10):2273–2282.
4.
DuWDWangKSongCJet al.Effect of special combined electromagnetic stirring model on macrosegregation of high strength spring steel blooms. Ironmaking Steelmaking. 2008;35(2):153–156.
5.
PooleGMEI-KaddahN.An inproved model for the flow in an electromagnetically stirred melt during solidification. Metall Mater Trans B. 2013;44B(6):1531–1540.
6.
SunHBZhangJQ.Macrosegregation improvement by swirling flow nozzle for bloom continuous castings. Metall Mater Trans B. 2014;45B(3):936–946.
7.
GliereAMassePFautrelleY.A finite element-finite difference computation of magnetic and turbulent flow coupled problem. IEEE Trans Magn. 1988;24(1):252–255.
8.
NatarajanTTEI-KaddahN.Finite element analysis of electromagnetically driven flow in sub-mold stirring of steel billets and slabs. ISIJ Int. 1998;38(7):680–689.
9.
LiuHPXuMGQiuST.Numerical simulation of fluid flow in a round bloom mold with in-mold rotary electromagnetic stirring. Metall Mater Trans B. 2012;43B(6):1657–1675.
10.
YuHQZhuMY.Influence of electromagnetic stirring on transport phenomena in round billet continuous casting mould and macrostructure of high carbon steel billet. Ironmaking Steelmaking. 2012;39(8):574–584.
11.
GengXLiXLiuFBet al.Optimisation of electromagnetic field and flow field in round billet continuous casting mould with electromagnetic stirring. Ironmaking Steelmaking. 2015;42(9):675–682.
12.
JiangDBZhuMY.Flow and solidification in billet continuous casting machine with dual electromagnetic stirrings of mold and the final solidification. Steel Res Int. 2015;86(9):993–1003.
13.
RenBZChenDFWangHDet al.Numerical analysis of coupled turbulent flow and macroscopic solidification in a round bloom continuous casting mold with electromagnetic stirring. Steel Res Int. 2015;86(9):1104–1115.
14.
RenBZChenDFWangHDet al.Numerical simulation of fluid flow and solidification in bloom continuous casting mould with electromagnetic stirring. Ironmaking Steelmaking. 2015;42(6):401–408.
15.
TrindadeLBAndalonJEAContiniACet al.Modeling of solidification in continuous casting round billet with mold electromagnetic stirring (M-EMS). Steel Res Int. 2017;88(4): art. no. 1600319.
16.
MauryaAJhaPK.Influence of electromagnetic stirrer position on fluid flow and solidification in continuous casting mold. Appl Math Model. 2017;48:736–748.
17.
YinYBZhangJMLeiSWet al.Numerical study on the capture of large inclusion in slab continuous casting with the effect of in-mold electromagnetic stirring. ISIJ Int. 2017;57(12):2165–2174.
18.
LiSXLanPTangHYet al.Study on the electromagnetic field, fluid flow, and solidification in a bloom continuous casting mold by numerical simulation. Steel Res Int. 2018;89(12): art. no. 1800071.
19.
LeiHZhangHWHeJC.Flow, solidification, and solute transport in a continuous casting mold with electromagnetic brake. Chem Eng Technol. 2009;32(6):991–1002.
20.
FangQNiHWWangBet al.The effects of a submerged entry nozzle on flow and initial solidification in a continuous casting bloom mold with electromagnetic stirring. Metals (Basel). 2017;7(4):146.
21.
ZhangWJLuoSChenYet al.Numerical simulation of fluid flow, heat transfer, species transfer, and solidification in billet contimuous casting mold with M-EMS. Metals (Basel). 2019;9(1):66.
22.
FangQZhangHWangJHet al.Effect of electromagnetic stirrer position on mold metallurgical behavior in a continuously cast bloom. Metall Mater Trans B. 2020;51(4):1705–1717.
23.
WangXZhengSGLiuZHet al.Numerical simulation on multiple physical fields behaviors in billet continuous casting with different stirrer positions. Steel Res Int. 2020;91(2). art. no. 1900415.
24.
TrindadeLBVilelaACFFilhoAFFet al.Numerical model of electromagnetic stirring for continuous casting billets. IEEE Trans Magn. 2002;38(6):3658–3660.
25.
AboutalebiMRHasanMGuthrieRIL.Coupled turbulent flow, heat, and solute transport in continuous casting processes. Metall Mater Trans B. 1995;26(4):731–744.
26.
YangHLZhangXZDengKWet al.Mathematical simulation on coupled flow, heat, and solute transport in slab continuous casting process. Metall Mater Trans B. 1998;29(6):1345–1356.
