热连轧机轧辊热辊型及冷却制度研究

1211(1:066004;2:201900)(),,,TG333.71AResearchontheHotRollShapeandtheCoolingSystemoftheHotMillLiXingdong1LiuXiandong2YangLipo1LiuHongmin1(1:MechanicalEngineeringSchool,YanshanUniversity;2:BaoshanIronandSteelCo.,Ltd.TechnologyCenter)ABSTRACTAgainstwide-rangefluctuationofhotrollshapeabouttherollofthetandemhotmillresultedfromthechangeofthestripspecification(chieflythewidthandnarrowmaterial),thetemperaturefield,thermalcamberandcoolingeffectoftherollareanalyzedinthispaper.Thetemperaturefieldandthermalcamberoftherollaremadeinnumericalsimulationbyfinitedifferencemethodandthecalculationvaluescoincidebetterwiththemeasuredvalues.Then,basedonfactors,suchasincomingstripspecification,depressrulesandetc.,theaxialdistributionofcoolingwaterofworkrollisdeterminedbythismodel.Itprovidesreliablefoundationforthecoolingsystemmodificationofworkrollofhotstriptandemmill.KEYWORDSWorkrollTemperaturefieldThermalcamberFinitedifferencemethodCooling,,,,,,,,,,;,(),,1TotalNo1153October2005METALLURGICALEQUIPMENT1532005105(:50374058):,,1975,,,,,:,[1],,,,,,,,,,,11.1[2],,,,,,,,:1),;2)1,(1)[3]:52T5r2+1r5T5r+52T5y2=c52T5t2(1)T;ry;;c;t1.2,,,,,,:1(T-T1)+2(T-T2)+q=-5T5r2(T-T2)=-5T5r3(T-T3)=-5T5y4(T-T4)=-5T5r5(T-T3)=-5T5y(2)12345;T1T2T3T4;q1.3,[3]:ut=2(1+)tRR0[T(r,z)-T0(r,z)]rdr(3)T0(r,z)T(r,z);t;;21532005105R1.4,,,10m,,1580,,:a+b1-2xL6xL/2(4)a-b1-2(L-x)L6xL/2(5),:a+b1-2xL6(6),ab,bb,L,,b21F2/mm/mm//mm//kN/s/s820115020/119391900074110,1580,;,,100mm,,,:2,F21100,2F215min;3F220min23341580,,,3:2005105F2,900mm,1200mm545,,,,,,,,,,,50m;:,,5m667,,,,,,,,,,,,,,,,-20m,,,,9m7,,,31)1580,,,,,,,2)1580,,;,,,[1]YangLipo,PengYan,LiuHongmin.Two-DimensionalTransientTemperatureFieldofFinishRollingSectioninHotTandemRolling.JournalofIronandSteelResearch,2004,11(4):2933(56)41532005105,,,,13,,,1;:1);2);3);4),;5),;6);7);8),4,RelexRelexLioydC-Partner,,,,,[1]Ferrell,BarryL.JSFPrognosticsandhealthmanage2ment.AerospaceApplicationsConferenceProceedings,IEEE1999(2)[2]LeaderS,FriendR.Aprobabilistic,diagnosticandprog2nosticsystemforenginehealthandusagemanagement,AerospaceConferenceProceedings,IEEE2000(6),p185192[3]Becker,ByinStOn,Forbes,Nickerson,PredictingandPreventingmachinefailures,ThelndustrialPhysicist.1998,4(4):2023[4],.,.:,1997[5]..,2001(6)[6]..,2000,22(1)(:2005-04-19)(4)[2],,..,2002(6):13,15[3]..:,1980[4],,.1150.,1998(3).16(:20050512)651532005105