摘要
ThepapershowsthemainsurfacedefectsofcoldrollingautomobilesheetinBXSteel.Themainsurfacedefectsareunusualdefects.Thetypicalfamiliardefectsaresliverandpunctuatesthatareontherollingdirection.Theinclusionsofsteel-makingandscalesofhotrollingprocessarethemaincausesofdefects.Theyarethebiggestproblemspuzzlecoldrolledautomobilesheetsurfacequality,andaretheburningissuesofBXSteel.Weclassifyandanalysisthedefects.Weobservethepanoramaofsurfacedefectsusingportablevideomicroscopyapparatus,andcleanthesampleusingultrasonicshaker,analysisthedefectspatternandchemicalcompositionusingscanningelectronmicroscope.Atpresenttheprimarydefectsthatimpactedcoldrolledautomobilesheetqualityaredarksliverdefects.Wecontrolthesteel-makingandhotrollingprocessaimingatthecauseandpositionofdefectsmaking.Wefinecontroltheoperatingofsteelladle,gating,castingsystemandcontinuouscastingmachineinsteelmakingprocess.Thescaledefectisreducedbycontrollingfurnace,highpressurewaterdescalingsystemandfinishmilldescalinginhotrollingprocess.Alonewiththereformingandrenewingofequipment,gatheringproducingexperience,thecoldrolledautomobilesheetqualitymadeinBXSteelisupgradinggradually.
出版日期
2010年08月06日(中国期刊网平台首次上网日期,不代表论文的发表时间)