在不锈钢连铸薄板坯生产中应用液芯压下技术的探讨

(,20072)(),,,:(1970),,,APPLICATIONOFLCRINPRODUCTIONOFSTAINLESSSTEELTHINSLABBYCONTINUOUSCASTINGANDROLLINGZhangJiataoXingChanghuZhaiQijie(ShanghaiUniversity)LiLiejun(GuangzhouIronandSteelCo.,Ltd.)AbstractThesolidificationcharacteristicsofstainlesssteelincontinuouscastingwereanalyzed.AssociatedwiththeLCRtechnology,thepossibilityofstainlesssteelproductionbycontinuouscastingwithLCR,aswellastheeffectofLCRonproductqualitywerediscussed.ItwaspresentedthattheproductionofstainlesssteelbycontinuouscastingandrollingprocesseswithLCRwasofgreatimportanceintechnologyandeconomics.KeyWordsStainlessSteel,ThinSlab,ContinuousCasting,LCR1,(LiquidCoreReduction,LCR)ISPCSPFTSRCPR[14],,,19901100t,20001900t,6%,,,70%,17%,1154Mt,20102166Mt[59],(CSP),,264Vol126,No142120047SHANGHAIMETALSJuly,2004,,,2AISI304[10](1),,,,,,1400,1300,,1W(Cr)=19%Fe2Ni2Cr,:(1),(2),iAlCr,(3),,,,(4),,,+(ZSTZDT),,,,,900,,,(5),,,32,,,,,;,,,,22226311,,,,,,,,,,,,,312PawelskiH[11],(10mm),,,,,,,,,:,,,,,,,313,,,,[1215],(1),,,,,,,(2),,,,,,,,,,,,(3),,,,,4AST:,,,[1621],,33324:,,3,(),,,,,3411,,,,,,,,,,412,,,,,,,,,,413,,,SP,,414,,,[22],,,,,4226415,,[23],5mm,5,Avestapolarito,Mansfield,NucorCrawfordsville,,AISI409,70%SMSDemagCSPCSPCSP,CSPAST,2mm,,2004,100tCSP,,,,,,,,6(1)(2),,(3),,[1]G.Vespasiani.CSP[C].2002.,200212:36[2]C.Caesar,J1Mueller,G.Brascugli.ASTCSP[C].2002.,2002:37[3].[C],2002.200212:138140[4]H.H.dl,K.Frauenhuber.[J]..2001,36(4):2730[5]MikeCygler.CSP-TechnologyEnhancementAndNewDevelopment[C].ElectricFurnaceConferenceProceedinggs.1995:1723[6]IanChristmas.Thesteelindustryatthedawnofthenextcentury[J].Ironmaking&steelmaking.1999,26(1):1921[7]TimSmith.ChinapssteelindustryintheWTOera[J].SteelTimesInternational.2002(2):3437[8].[J]..1999,(3):2428[9].[J].,1998,():111[10],,.[J]..2000,(3):2729[11]PawelskiH.Comparisonofmethodsforcalculatingtheinfluenceofasymmetryinstripandplaterolling[J].SteelResearch.2000,71(12):490496[12],.[J]..1997,(1):5052[13].[J]..1997,(4):8285[14]DieterKruger.CPR-ACombinedCastingPRollingProcessForProducingSteelStrip[J].Iron&SteelEngineer.1995,(5):31524:36[15].[J]..1999,(9):6367[16].[J]..1999,(2):1114[17].[J]..1999,(3):2224[18],,.[J]..1999,(6):1015[19]A.Yamanaka,K.Nakajima,andK.Okamura.Criticalstrainforinternalcrackformationincontinuouscasting[J].IronmakingandSteelmaking1995.(6):509512[20]M.DeisingerandK.H.Tacke.Unbendingofcontinuouslycastslabswithliquidcore[J].IronmakingandSteelmaking.1997,(4):321328[21],,.[C].(),,1998:385389[22]HansStreubel,Thin-slabcastingwithliquidcorereduction[J].Continuouscasting.1999,(3):6266[23].[J]..2002,(1):2429:2003-9-17,,,WC,,,,,,,600mm,550mm,422mm,490GPa,206GPa,2914kN/mm23,,1000MPa,1191,1158¶Í™.2003.16(6).1425,,,,FOB420/tFOB430/t,,,FOB450/tbsteel,2004-3-86226