简介：Surfacequalityhasbeenoneofthekeyfactorsinfluencingtheongoingimprovementofthequalityofsteel.Therefore,itisurgenttoprovidemethodsforefficientsupervisionofsurfacedefects.Thispaperfirstexpressedthemainproblemsexistingindefectmanagementandthenfocusedonconstructingadataplatformofsurfacedefectmanagementusingamultidimensionaldatabase.Finally,someon-lineapplicationsoftheplatformatBaosteelweredemonstrated.Resultsshowthattheconstructedmultidimensionaldatabaseprovidesmorestructureddefectdata,andthusitissuitableforswiftandmulti-angleanalysisofthedefectdata.

简介：Alloyingelements,suchassiliconandmanganese,haveamajorimpactonthephasetransformationpointofsteel.Specifically,manganeseisanelementfortheexpansionandstabilityoftheausteniteregion,whilesiliconcanexpandandstabilizetheferriteregion.Phasetransformationoccursduringthehotrollingprocessforthesteelwithcertainsiliconcontent,whichleadstogreatchangesofthedeformationresistance,therebyaffectingtherollingstability.Consequently,abetterunderstandingofphasetransformationintherollingprocesswillcontributetotheenhancementofproductquality.Inthispaper,theon-linerollingdatawereprocessedbymeansoftheinversecalculationmethod.Inthismethod,thesteeldeformationresistancewithvarioussiliconandmanganesecontentswasobtainedandanalyzedtodeterminethedeformationbehaviorofthesteel,whichcanhelpimprovetheon-linecontrolmodelandenhancethesteelquality.