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1、17(2K_K_F_11.DOT012006I&SDAC)?D:wkWebUIFlexPaperFileRoot201910221fe317782f0e045c6821d7869a845396a50papertommasodipaolomodernizingautomationdrives.doc17qModernizingAutomationDrivesoftheBaoshanTemColdMillNo.1TommasodiPaolo

2、RainerPolsterAlfredDmmlerABSTRACTInJanuary2004BaosteelawardedSiemenswithacontracttomodernizetheelectricalequipmentautomationofitsContinuousTemColdMillNo.1.Thetemcoldmillwhichcanberuninbothbatchcontinuousmodehasbeenoperat

3、ionalsince1989.FthismillSiemensissupplyingnewSimegtypedigitalcontrolsystemsftheexistingDCdrivesanewbasicprocessautomationsystemincludingtheassociatedtechnologicalcontrollers.Reintegrationoftheexistingprocessmodelswhichal

4、socameiginallyfromSiemenshavebeenadaptedovertheyearstotheproductionprocessbythecustomeritsselfaretobecarriedoutbyBaosteel.Themodernizedmillwentintooperationinautumn2005.Thearticleexplainstheprojectindetailtherevampstrate

5、gytheresultsfromthestartupphase.KEYWDS：TEMCOLDMILLAUTOMATIONMODERNIZATION0INTRODUCTIONOntimetherevampedBaosteelcontinuoustemcoldmillNo.1locatedinBaoshanChinawentbackintooperationinNovember2005.ThemostproductiveColdrollin

6、gmillwithinBaosteelGroupwasreadytoberevampedafternear15yearsinoperation.TheprojectwasstartedtokeepBaosteelsflatsteelproductsonawldclasslevelgettingthebasisffutureproductrequirements.ThechallengeTheBaosteelGroupislocatedi

7、nBaoshannthofShanghaiontheJangtzeRiver.Baosteelisoneoftheleadingmanufacturersofsteelstripproductse.g.ftheautomotiveindustriesetc.inChina.Themodernizationisaimedatimprovingthethicknessflatnesstolerancesensuringhighproduct

8、qualityespeciallyfbuyersintheautomotiveindustry.Asecondobjectiveistoincreaseproductivityintheplanttoinstallmoderndigitalautomationequipment.37(2K_K_F_11.DOT012006I&SDAC)?D:wkWebUIFlexPaperFileRoot201910221fe317782f0e045c

9、6821d7869a845396a50papertommasodipaolomodernizingautomationdrives.doc37qTheBaosteelfivesttemcoldrollingmillisoneofthelargestofitskindanywhere.itwasiginallybuiltinthelate1980sbyaconstiumofSiemensSchloemann–Siemag–wasparto

10、fthefirstexpansionstateofBaosteelflatsteelproductioninBaoshan.Atthattimethe5st4highmillrepresentedthestateoftheartfeaturinghydraulicgapcontrolwkrollbendingaprocesscomputerwithSiemensTypeR30setupmodelsfullyautomaticoperat

11、ion.Themillwasbuiltfdiscontinuousmainlycontinuousoperation.EstablishedduringtheinitialprojectthecdialrelationshipbetweenSiemensBaosteelwasneverinterruptedovertheyearssucceededbymanyotherprojects.Besidetheinvestmentinnewc

12、apacitiestheextensionsoftheamountofproductionBaosteelisinvestingincontinuousimprovementoftheirexistingplantsindertofollowthemarketrequirementstostrengthentheircostpositionintheChinesemarket.KeyMillDataEntryThickness:1.8–

13、6.3mmExitThickness0.33.5mmStripWidth(max):1890mmCapacity:2.400.000tpyCoilWeight(max):max.45tExitSpeed(max):1900mminAutomationupgradeimprovesproductqualityproductivityTheSiemensautomationupgradeconceptfocusedprimarilyonim

14、provingproductqualityatthemill.Togetherwiththecustomerfollowingmodernizationscopewereelabated:?Betterdynamicresponsebettersupptofthemassflowthicknesscontrolthroughdigitalizationifthedrivespeedcontrol?Addinganewlaserbased

15、speedmeasurement.?ReplacementofexistingCPC’sbystateoftheartequipment?AdditionaltensionmeasurementbefestNo.1fSIEMENSadvancedMassflowcontrol(optionaldancerrollcontrol)?Replacementofthe15yearoldbasicautomationincludingtheop

16、eratpulpits.?Newprocessautomation?Interfacetoexistingtechnologicalmeasuremente.g.Thicknessgaugestensionmeasurement?IntegrationoftheexistingSIEMENSVAIflatnesscontrol?InterfacetointegrationofthenewMiebachLaserweldingmachin

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