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Φ650轧机断辊分析 Title:AnalysisofBreakageofΦ650RollingMillRolls Introduction: TheΦ650rollingmillisacriticalcomponentinthemetalworkingindustryforshapingmetalintovariousforms.However,theoccasionalbreakageofrollsduringtherollingprocesshasbeenasignificantconcernformanufacturers.ThispaperaimstoanalyzethecausesofrollbreakageintheΦ650rollingmillandproposepotentialpreventivemeasurestomitigatetheissue. 1.OverviewofRollBreakageintheΦ650RollingMill: Rollbreakagereferstothecatastrophicfailureofrolls,leadingtodowntime,increasedmaintenancecosts,andpotentialsafetyhazards.TheΦ650rollingmillexperiencesoccasionalrollbreakage,whichcanbeattributedtovariousfactors. 2.CausesofRollBreakageintheΦ650RollingMill: 2.1MechanicalOverload:Excessiverollingpressure,materialdefectsintherolls,ornon-uniformloadingcanleadtomechanicaloverloadandsubsequentrollbreakage.Insufficientmaintenanceandimproperadjustmentofthemillcanalsocontributetothisissue. 2.2ThermalOverload:Rollinggeneratessignificantheat,andifitisnoteffectivelydissipated,therollsmayexperiencethermaloverload,resultingindeformationandultimatelybreakage.Inadequatecoolingsystemsorimpropertemperaturecontrolcanexacerbatethisproblem. 2.3MaterialProperties:Thecomposition,hardness,andmicrostructureoftherollmaterialplayacrucialroleinitsresistancetobreakage.Inferiororinconsistentmaterialpropertiescancompromisetheintegrityoftherolls,makingthemmorepronetobreakage. 2.4Entry/ExitMisalignment:Misalignmentbetweentherollsandthemetalworkpieceduringtherollingprocesscancauselocalizedstressconcentrations,leadingtorollbreakage.Accuratealignmentandregularchecksarethereforeessentialtopreventthisissue. 2.5RollGrindingDefects:Poorgrindingpracticesorthepresenceofgrindingdefectsontherollsurfacecaninitiatecrackpropagation,ultimatelyresultinginbreakage. 3.AnalysisandRecommendations: 3.1MonitoringandControlSystems:Implementingadvancedmonitoringandcontrolsystemscanhelpdetectdeviationsinrollingpressure,temperature,andmisalignment.Earlydetectioncanenabletimelyadjustmentandpreventro