一种新型中厚板头部厚度控制方法

4310200810IronandSteelVol.43,No.10October20081,1,1,2,2(1.,110004;2.,050400):,,,,,;,,:;;:TG33515:A:04492749X(2008)1020047204ANewGaugeControlMethodforPlateHeadSUNTao1,DUPing1,LIUXiang2hua1,LIUJun2chuan2,YANJin2long2(1.TheStateKeyLaboratoryofRollingandAutomation,NortheasternUniversity,Shenyang110004,Liaoning,China;2.PlateRollingMillofHebeiJingyeGroup,Shijiazhuang050400,Hebei,China)Abstract:Basedonthecauseofgaugeoversizingofplatehead,thetraditionalheadgaugecompensationmethodswereanalyzed.Anewgaugecontrolmethodforplateheadwasdeveloped.Fortheplatesofdifferentsteelgradeanddifferentdimensions,theplasticitycoefficientiscalculated,andgaugecompensationforplateheadisautomaticallyadjusted.Adoptingtheexponentialcompensationcurve,thegaugedeviationisallowableaftercropping,andmetalyieldcanbeimproved.Keywords:platerolling;compensationathead;gaugecontrol:(50604006):(19782),,,;E2mail:[e-mail];:2008204220,,,,,,,[1]23%,,,[2,3],APCAPC,AGC,APC,,[4],,AGC,,,,1,:(1),,,,[5](2),,,,(3)AGC,AGC,[57]22.1,:2.1.1©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[811]:Si=(Lh-Li)-ShLh(1),Sh;Lh;Sii;LiiSi,2.1.2,,,,,Simpact,timpact,,,[6,8]2.2,Lhtimpact,,,,ShSimpact,MQ,,,,,Q=P/h,iQi=Pi/hi,Pii,hii,(2)hi=(Si-1-Si)+Pi-1-PiM(2),Sii,M,(2),i:Qi=Pi(Si-1-Si)+Pi-1-PiM(3),,Pi-1-Pi,Qi,M,[12,13],(4):Sh=ShM+QM(4),Sh,(3)(4)i:Sh[i]=ShM+Qi-1M(5),,,,:Sh[i]=M+Qi-1M(1-500t/t0-1)Sh0tt0(6),t0,t,1,1Fig.1Gaugecontroleffectwithexponentialcurvecompensationforplatehead3,2120mm12mm220mm1600mm2500mm,Q235,2400mm,20mm,0.35mm;12mm,0.5mm;AGCPLCFM458,1ms4,,12mm0.2mm,84©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(a)20mm;(b)12mm2Fig.2Compensationatplateheadfordifferentproducts1,Q235,220mm1600mm2500mm,2400mm,12mm20mm50mm,,1Table1Croplossfordifferentcompensationmethods/mm/%/%231210099.6199.5299.242010099.3499.1398.995010098.2297.9597.204(1)AGC,,(2),,(3),,,,(4),,12mm012mm,,,:[1].[J].,1999,16(1):42.(LUOXian2de.SimpleAnalysisoftheCurrentSit2uationandProgressofFinishedProductRateofPlateprod2uctsinOurCountry[J].SteelRolling,1999,16(1):42.)[2],,.[J].,2001,18(1):38.(HEDa2lun,WANGGuo2dong,LIUXiang2hua.NewTechnologiesforObtainingHighYieldinForeignModernPlateMills[J].SteelRolling,2001,18(1):38.)[3].[J].,1988,4(6):1.(YANGHai2jiang.AnalysisandMeasurestoFactorsAffectingYieldRatioofMediumandHeavyplate[J].WideandHeavyPlate,1988,4(6):1.)94©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4],,,.PLC[J].(),2001,22(4):435.(WANGJun,ZHANGDian2hua,LIJian2ping,etal.HydraulicRollGapControlSystemofPlateMillandItsDe2velopmentinPLC[J].JournalofNortheasternUniversity(NaturalScience),2001,22(4):435.)[5],,,.[J].,2007,42(4):50.(HUXian2lei,ZHAOZhong,LIUXiang2hua,etal.AnalysisofOversizeinThicknessofPlateatHeadandTailEnds[J].IronandSteel,2007,42(4):50.)[6],,,.[J].,2004,39(12):36.(QIUHong2lei,HUXian2lei,ZHAOZhong,etal.GapSetModelandApplicationinPlateRollingProcess[J].IronandSteel,2004,39(12):36.)[7]TakashiODA,NaokiSATOU,ToshikiYABUTA.AdaptiveHotTechnologyforStripMillThicknessControlofFinisherSet2UponHotStripMill[J].ISIJInternational,1995,35(1):42.[8],,,.[J].,1980,66(8):A157.[9],,,.[J].,1981,67(15):2419.[10],,,.[J].,1981,67(15):2412.[11],,,.[J].,1998,33(2):33.(DINGXiu2kun,YUJiu2ming,ZHANGYan2hua,etal.EstablishmentofMathematicalMod2elsforPlateViewPatternControlofPlate[J].IronandSteel,1998,33(2):33.)[12].[D].:,2003.41.[13],,,.[J].,2000,35(5):40.(ZHANGDian2hua,WANGJun,LIJian2ping,etal.StudyonComputerControlSystemofthePlateViewPatterninPlateRolling[J].IronandSteel,2000,35(5):40.)05©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.