宝钢分公司4 连铸机结晶器振动技术应用

200814#,,(,200941):4#,,;,,,,,,4#:;;;:TF777:B:1008-0716(2008)01-0024-04ApplicationofMouldOscillatorTechnologyforBaosteelBranchsNo.4ContinuousCasterGuoYong,WangKeyong,LiuYong(SteelmakingPlant,BaosteelBranch,Shanghai200941,China)Abstract:SomerollingelementsareusedfororientationofthemouldoscillatorofBaosteelBranchsNo.4con2tinuouscaster,whichcanavoidthecommonfatigurefailureofthespringandgreatlyincreasetheorientationsystemsservicelife.Theoscillatorisdrivendirectlybydoublehydrauliccylinders,whichnotonlymakesthemaintenanceeasier,butalsoproducesmorewaves.Themouldoscillatorswaveformandamplitudecanbeadjustedatanytime.Withanintroductiontothemouldoscillatorandanalysisofapplicationsofthedoublehydrauliccylinderssynchro2nousvibrationinthemould,theoscillatingsystemwasthoughttohavemanyadvantages,suchasasimplestructure,flexible,accurateoperation,etc.,whichwillensureNo.4continuouscastersstableproduction.Keywords:continuouscaster;rollingelement;hydraulicoscillation;sinusoidalasymmetricwaveform0,,,,[1],,,[2],16,1#,5#6#,[e-mail]4,,,3#,,,[3],;4#,,,,24#2.14:,11,,,42©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1),,,,,(),,(2),,,34#3.1,,3.2,,,:Csv=QI=Ksvs22v+2vvs+1(1),Q,m3/s;I,A;Ksv,m3/sA;s;v,Hz;v,:Ch=VhQh=1Ass22hl+2hlhl+1(2),Vh,m/s;Qh,m3/s;A,m2;hl,HZ;hl,0.10.2,(),(KsvKp)(),,[4]3.34#,,,,;,,,,,0.1mm22Fig.2Synchronouscontrolflowchartofthehydrauliccylindersoscillating3.43.4.1,52©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[5],4#,,,(1),:D=l2sinwt(3),D,mm;l,mm;w,rad/s;t,s,,,,;,:v(t)=lw2coswt(4)(4),,,,,,,,,,,,,,,,(2),,4#:As=tutt100(5),As,%;tu,s;tt,s4#,,75%,,60%,:D=l2sinwut(0tt1)(6)D=l2sin(2+wd(t-t1))(t1tt2)(7)D=l2sin(32+wu(t-t2))(t2tt3)(8)(6)(8),wu,rad/s,wu=2f50As;wd,rad/s,wd=2f150As;t10,s;t2,s;t30,s(6)(8),:v=lwu2coswut(0tt1)(9)v=lwd2cos(2+wd(t-t1))(t1tt2)(10)v=lwu2cos(32+wu(t-t2))(t2tt3)(11)(6)(11),lfAs,3,4l=6mm,f=5Hz,As60%,70%,(As50%,)3Fig.3Sinusoidalasymmetricdisplacementwaveformofthemouldoscillating3,4,,(As50%),,,,,,62©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3)4#,,INMOHMI500,,,,55Fig.5Waveformdefinedbyusers3.4.2,,:,,64#6Fig.6Relationshipbetweenswingandfrequencyofthemouldoscillating4#:030mm,:0600/min,,210mm,25400/min44#,,,,,4#[1],,,.[M].:,1990:502-518.[2],,,.[J].,2005,40(8):33-37.[3].[J].,2005,(5):19-23.[4],,.MATLABADAMS[J].,2007,28(3):44-47.[5].[J].,2006,22(3):6-9.(:2007-11-21)(:2007-11-27)72©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.