大凸度支撑辊带钢凸度的控制能力

:2002204203:(59995440);(200006720824):(1964-),,,;(1942-),,,,24220032()JournalofNortheasternUniversity(NaturalScience)Vol124,No.2Feb.2003:100523026(2003)02201512041,1,1,2(1.,110004;2.,201900):,,5,CVC,2050F6,F7:;;;;:TG333.7+1:A,,(SFR)[16][7]AGC[8],,,,2050mmF62F7CVC,,,,,CVC,,1,,,,,,,,[9]111KiKi=Ci-C0Xi-X0(1),CiXi,mm;C0X0,mm112,(2)C=C0+6ni=1Ki(Xi-X0)+SCOR(2),C;C0,mm;n;Ki;Xi;X0;SCOR,mm2,2050mm[10],,211,KCB=C-C0CB-CB0(3),CCB,mm;C0CB0,mm11;1,2,511Fig.1Theback2uprollcrowninfluencingratioofversusthestripwidth15Table1Thefitcoefficientofthequinaryorderpolynomialontheback2uprollcrownB(0)B(1)B(2)B(3)B(4)B(5)712777310-3-218718910-2317449210-2-216379110-2114243110-3712768010-4212KFWKFW=C-C0FW-FW0(4),CFW,mm;C0FW0,mm22Fig.2Theworkrollbendforceinfluencingratioversusthestripwidth31,;12,+19%3,12,32;523Fig.3Theamendatoryworkrollbendforceinfluencingratioversusthestripwidth25Table2ThefitcoefficientofthequinaryorderpolynomialonthebendforceinfluencingratioC(0)C(1)C(2)C(3)C(4)C(5)1-5186417710-5311956610-4-712357610-4519579510-4-218239310-4511305910-52-317929610-11611090810-6-518502810-5-211169910-5919849610-6-212121610-6:1-,2213KPBKPB=C-C0PB-PP0(5),CPB251()24,mm;C0PB0,mm4Fig.4Thespecialforceinfluencingratioalongwiththestripwidth412;;115116m,3112m,5335Table3ThefitcoefficientofthequinaryorderpolynomialonthespecialforceinfluencingratioB0B1B2B3B4B51-114762510-2817133510-2-115344110-1115586610-2-714755310-2111771810-22-918195510-9813422010-3316220710-3613281710-3-214206410-3-110088210-3:1;23,K3CB,K3FWK3PBC1,CVC,KCW,KFWKPBC2C12(6),44Table4TheinfluencingparametervaluesusedinthepredictionCB/mmCW/mmFW/kNPB/(kNmm-1)1316052510610810200105012552510610810:1;2CVC;C1=K3CB(CB-CB0)+K3FW(FW-FW0)+K3PB(PB-PB0),C2=KCW(CW-CW0)+KFW(FW-FW0)+KPB(PB-PB0),C12=C1-C2(6)5,;115118m,CVC;CVC0115mm,112118m,5Fig.5ThestripcrownD2valuealongwiththestripwidthindifferentrolltypes(a);(b)3512:CVC;CVC0115mm,112m,CVC2210m4(1)(2)115118m,CVC(3)CVC0115mm,112118m,CVC(4)CVC0115mm,112m,CVC2210m(5)CVC,:[1],[M]:,1993.51-54(YiGK,LiJS.ThehotstriprollingtechnologyofJapan[M].Shenyang:NEUPress,1993.51-54.)[2],,,[J],1995,84(3):22-28(HanB,LiuXH,WangGD,etal.TheresearchofSFRtechnology[J].ResearchonIronandSteel,1995,84(3):22-28.)[3]KitahamaM.Profilecontrolofhotrolledstripbyworkingrollshifting(k2wrs)mill[J].IronandSteelEngineer,1987,64(11):34-43.[4]WoodGE,HumphriesK,ArnoldPW,etal.ModernizationofhotstripmillwithCVCtechnologyandanewroughingmillwithautomaticwidthcontrol[J].MPT,1989,12(5):92-96.[5]EspenhahnM,FriedrichKE,OsterburgH,etal.ModernizationofthehotstripmillsofThyssenStahlAG[J].MPT,1995,18(1):18-22.[6]ShimizhuY,IwataniJ,YamasakiY,etal.Developmentofnewhotrollingprocessforthinstriprolling[J].TechnologyReview2MitsubishiHeavyIndustries,2000,37(2):45-47.[7]ZhouSX,FunkeP,ZhongJ.Influenceofrollgeometryandstripwidthonflatteninginflatrolling[J].SteelReasearch,1996,67(5):200-204.[8]ParksJC.Automaticgaugecontrol2aprimer[J].ASIESteelTechnology,2000,77(7/8):60-62.[9]GinzburgVB.High2qualitysteelrolling:theoryandpractice[M].NewYork:MarcelDekkerInc,1993.345-346.[10][M]:,1986.289-306(WangGD.Shapecontrolandshapetheory[M].Beijing:MetallurgicalIndustryPress,1986.289-306.)ControlCapabilityoftheBackupRollCrowningMethodontheStripCrownXUJian2zhong1,KONGXiang2wei1,WANGGuo2dong1,HEXiao2ming2(1.StateKeyLabofRollingandAutomation,NortheasternUniversity,Shenyang110004,China;2.HotRollingDepartment,BaoshanIronandSteelCo.Ltd,Shanghai201900,China.Correspondent:XUJian2zhong,associateprofessor,E2mail:[e-mail])Abstract:AsoftwarethatcanbeusedtocalculatethestripcrowninfluencingratiowasdevelopedbyemploymentoftheG2functionmethod.Theeffectivelawwasstudiedonthefactorssuchasback2uprollcrown,theworkrollbendingandthespecificforceactedonthestripcrown.Thequinaryorderfitcoefficientwasderivedontheback2uproll,theworkrollbendingandthespecificforceinfluencingratioonthehighmill.ThecontrolcapabilitywasanalyzedforthebothconventionrollmethodandtheNBCM(NewBackupRollCrowningMethod).TheoptimalmodelparametersarepresentedtheoreticallywhentherollshapeischangedontheNo.6andNo.7stands.Keywords:NBCM;42highmill;G2functionmethod;stripcrown;influencingratio(ReceivedApril3,2002)451()24