379-paper-精準過程控制是軋線健康生產的保障(王勇)英文版

1、精準過程控制是軋線健康生產的保障[投稿日期]200637[修改稿日期]2006[作者簡介]王勇(1979.10)湖北鐘祥人助工主要從事熱軋過程控制和開發(fā)工作1AccurateexactprocesscontrolistheguaranteeofSCC2healthyproduceWangYong(BaoShanIronL2L1wk:L2sendsthePLCofL1setupdatareceivesrollingresultL2deve

2、lopmaintenance:softwaredevelopmaintenancesystemmaintenancemanagementsoon.1.1HardwaresystemilluminationSCC2processcontrolsystemismadeupofhostcomputersystemsavedevice.ItshostcomputermakesuseofthematureOPENVMSclustertechnol

3、ogyframeofCOMPAQCompany.ThehostcomputersofSCC2、SCC1sparecomputer(BU1)arelinkedtobecomeacompleteentity.WhenoneoftheclustercomputersappearstroubleitsfunctionwillbeingeofBU1.Thusitcarriesoutthecontinuousrunofthewholeproduct

4、ionsystemcangiveroomfproductionmanagementupgradingafterwards.AsetofMA8000diskarrayisusedasseasaveequipmentsharedbyallprocessmachinesseediagram2.HMIsystemismadeupofHMIserverclientboundtothreekindsofelectricity精準過程控制是軋線健康生

5、產的保障[投稿日期]200637[修改稿日期]2006[作者簡介]王勇(1979.10)湖北鐘祥人助工主要從事熱軋過程控制和開發(fā)工作3SCC2isarealtimecontrolsystemwhichassuresrollingproductionhealthyderlyaccdingtotheplan.Ithaseightgreatfunctions:rollingplanmanagement、materialtracking、set

6、upfunction、actualvaluecollection、communication、HMI、reptmanagement、shiftmanagement.2.1RollingplanmanagementRollingplanmanagementiscalledPDIdatamanagementagain.Itismainlyresponsiblefreceiving、modifying、deletingmanagingroll

7、ingsequence.WhenL3sendsfinalrollingplantoslabyard(SYC)L3alsosendsittoSCC2.AfterSCC2receivesthedataSCC2savesitintherollingplanfileaccdingtothecoilNOofrollingplan.Arollingplanfilecansave800piecesofslabdataatmost.Whenthecoi

8、ltotalamountofrollingplanislessthan20SCC2automaticrequestL3therollingplanwithcoilNO.SCC2hostcomputerautomaticreceivesfinalapieceofcoildataoftherollingsequencefile.AftercoilweighedSCC2carriesoutdiscretionaboutthecoiltotal

9、numberofrollingplantoactivatethatevent.AfterL3receivesthetelegramfromSCC2l3wouldsendallplandatabehindthecoilNo.SCC2hlesprocess:thedataintheiginalfileisinvariablethedataoflatelyreceivingrollingplansintothebottomoftherolli

10、ngplanfileonebyoneinder.2.2MaterialtrackingMaterialtrackingisaveryimptantfunctionofprocesscontrolwhichincarnateseachaspectonproduction.Sincehotmillisacontinuoushotmachiningprocessinactualrollingprocessthereareseveralmate

11、rialsatthedifferentpositionsinthemeantime.Thesematerialsneedcarryonthedifferentwkingproceduretomeeteachdem.Howeveraccdingtorollingcraftrequesttheconcretepositionofeveryslabmaterialtrackingfunctioncarriesoncrespondingauto

12、maticcontrolatanymoment.TheestablishmentofL2trackingispassivewhichmarksthepositionofslabcoilonthemilllinebytheinfmationthatL1sends.CoilNoisusedastrackingkeywhichwillbetransmittedtoL1.Themilllinetheconveyaredividedintosma

13、llunitscalledtrackingzones.Whenaslabmovesintothetrackingzoneatrackingpointerisassignedtoitcalledtrackingpointers.Eachofthetrackingzonescanhavemethanoneslabssoeachzonecanhavemethanonetrackingpointers.SCC2keepstrackonthesl

14、absbytakinginfmationfromMELPLACoperatinputs.WhenmaterialmovesbetweenthetrackingzonesSCC2willupdatethecrespondingimagesofthematerial.accdingtorollingcraftrequesttheconcretepositionofeveryslabSCC2wouldtriggerrelatedfunctio

15、nmodelcarryoncrespondingautomaticcontrol.Therearetwokindoftrackingways:directwayqueueway.IfSCC2trackingisdifferentwithL1trackingoperatcancrectonL2trackingCRTtokeepconsistentwiththepracticality.2.3SetupfunctionDifferentsl

16、abhasdifferentrollingcraftrequest.Sointhecourseofstripsteelbeinghotcontinuousrolleditneedslotsofrealtimeprocesscontrolparameterstorollatthedifferentposition.SCC2setupfunctionistosetupdifferentlytomeetvariouslyrequestaccd

17、ingtothedifferentpositionofslab.SCC2setupfunctionhasclosetouchwithSCC2tracking.GenerallywhenaslabarrivescertainpositionaccdingtotheresultofthehotsensHMDdetectingPLCsendsSCC2therequestofsetuptelegram.AfterSCC2receivesthet