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:(1977-),,,,.1,2,1,3,1,4(1.(),056016;2.(),100041;3.,100083;4.,100081):,,:,,:;;;:TF704.7:A:100121447(2006)0520001205EffectofinjectingargonintotundishthroughshroudonthetransferbehaviorofmoltensteelWANGYi2fang1,WANGLi2tao2,LiXiao2hui1,ZHANGQiao2ying3,HUZhi2gang1,LIZheng2bang4(1.DesignResearchInstitute,HandanIronandSteelCorp.,Handan056016,China;2.TechnologyResearchInstitute,CapitalIronandSteelGroupCorp.,Beijing100041,China;3.SchoolofMetallurgyandEcologicalEngineering,UniversityofScienceandTechnologyBeijing,Beijing100083,China;4.DepartmentofMetallurgicalTechnolo2gy,CentralIronandSteelResearchInstitute,Beijing100081,China)Abstract:Toascertaintheeffectofargoninjectedthroughshroudontransferbehaviorofmol2tensteel,mathematicalsimulationandwatermodelareadoptedtoobtaintheflowfield,vol2umefractionandRTD.TheresultsshowthatargoninjectionaltersflowcharacteristicoffluidandreducesmoltensteelimpactonthebottomoftundishbuthasnogreatinfluenceonRTD.Keywords:ladleshroud;argon;inclusion;transferbehavior,[16]:,,;,,[7],,[812]2,:,111200610345ResearchonIron&SteelOct.2006Vol.34No.5,,,,0.51.0mm,,,,122.12.1.1,:(1),;(2),,;(3),,,:,,:9(ci)9t+9(uci)9x+9(uci)9y+9(uci)9z=99xeff9ci9x+99yeff9ci9y+99zeff9ci9z(1)eff=Sc+tSct(2),kg/m3ci,10-5kg/m3t,sxyz3u,m/seffScSctt,kg/(ms),,,,,,,;,,k;,,;,(k)2.1.2,,22(:mm)234,CFX4.4,,,,2104,110-6,,,200,110-6,1[13]1/(kgm-3)/(Jkg-1K-1)/(kgm-1s-1)/(Wm-1K-1)/(kgm-3)/(Jkg-1K-1)/(kgm-1s-1)/(Wm-1K-1)70207555.510-3410.3225252.2510-51.6410-22.2,1Ø2,,,,,2,NaCl,;,NaCl,NaCl,NaCl,:0.080.40.81.21.6L/min33.1,,:0.452.264.56.89.1L/min,0.080.40.81.21.6L/min3,,,,,,,,3.2,,,,,0.45L/min9.1L/min2,,,,,,,,,,,,3.3,,,4,35,:34434,,,,,,,5,,,50.45L/min2.26L/min54(1),,,(2),,,[][1],,,.15MnHP[J].,1997,25(4):6210.[2],.[J].,1996,8(5):61264.[3],.[J].,1993,5(5):58260.[4].[J].,1991,3(5):23226.[5],,,.[J].,2004,40(6):6232628.[6],,.[J].,2004,40(8):8462850.[7]LiTaoWANG,QiaoYingZHANG,ShiHengPENG,etal.Mathematicalmodelforgrowthandremovalofinclusioninamulti2tuyereladleduringgasstirring[J].ISIJInternational,2005,45(3):3312337.[8]WANGLi2tao,ZHANGQiao2ying,LIZheng2bang,etal.Fundamentalofinclusionremovalfrommoltensteelbyrisingbubble[J].JournalofIronandSteelResearchInternational,2004,11(6):529.[9]LiTaoWANG,QiaoYingZHANG,ZhengBangLI.Mathematicalmodelforremovalofinclusioninmoltensteelbyinjectinggasatladleshroud[J].ISIJInternational,2005,45(8):113821145.[10]LiTaoWANG,ShiHengPENG,QiaoYingZHANG,etal.Mathematicalmodelforgrowthandremovalofinclusionsinmoltensteelundergas2stirringconditions[J].SteelResearch,2006,77(1):23229.[11],,,.[J].,2003,39(4):4312434.[12].[D].:,2005.[13]Dong2YuanSheng,MatsSÊder,PÂrJÊnsson,etal.Modelingmicro2inclusiongrowthandseparationingas2stirredladles[J].ScandinavianJournalofMetallurgy,2002,31(2):1342147.(:2006202221)55,: