简介：Thispaperpresentedtheapplicationofthedirecthotchargerolling(DHCR)technologyinNingboSteel.Fiveaspectshavebeensystematicallyaddressedandanalyzed,whichincludesalesorder,productionscheduleprogramming,steelmaking,continuouscastingandhot-rolling.TheaverageDHCRproductratehasreached55%andtheaverageslabchargingtemperature699℃.Asaresult,theproductioncost,theenergyconsumptionandtheCO2emissionhavebeensignificantlyreduced.ItisconcludedthatabreakthroughinapplicationoftheDHCRtechnologyhasbeenachievedatNingboSteel.

简介：HitachiInformationSystemsstarteduptheRFIDbusinessfrom2002andprovidesvarietiessolutions,especiallydevotedtheenergiesontheresearchofmetallictagandthedevelopmentofitsappliedarea.Themetallictagwasdevelopedtowithstandtheharshenvironmentlikevibration,shock,high-pressurewaterinjection,highvoltage,andultravioletirradiation.Becausethemetallictagthatdifferentwiththemetaltagcreatedbefore,isprotectedbythemetallicmaterialthatmadeitverystrongtobeusedintheenvironmentlistedabove.June,2006,ourcompanysuccessfullydevelopedthemetallictagwitharmor-cladstainlesssteel.Therefore,comparingwiththeresintag,themetallictagwithremarkablemechanicalstrengthwassufficientattentiontowithstandtheoutdooruse,eventoresistUV.Bythemethodofscrewfixing,rivettightening,solderingornailstriking,theinstallationprocedurecanbecompleted.Becausethevariousinstallationmethodsweresupported,themetallictagcanbeappliedtomanyindustryareas.Themanagementmarketslikeconstructionmachinery,substationequipment,molds,tools,andmetalliccontainerthatneedtheverystrongtagcanbedeveloped,becauseofthemetallictag.Inthisthesis,itwillbedescribedabouttheresearchbackgroundandtheresearchresultsofmetallictag,thecommercializedmetallictag’sfeaturesandapplicationfields,aswellastheresearchsubjectsinthefutureandrecentdevelopmentsituation.

简介：DSShavehighstrength,highcorrosionresistanceandgoodweldingproperties.Comparingwiththesamecorrosionresistancelevelausteniticstainlesssteel,DSSdecreaselargelyNicontentandrealizethethinningofthicknessdesigntoperfectlyoptimizepropertiesanddecreasecosts.NowDSShavebeenwidelyusedinmanyfieldssuchaspetroleum,chemicalindustry,paperproduction,shipbuilding,nuclearpower,seawaterdesalting,vacuumsaltproductionandarchitecture.TiscohavebegantheprocessdevelopmentandproductapplicationresearchofDSSproductsfromlastcenturyandgraduallysolvedalotoftechnicalproblemssuchasAODnitrogenalloyingcontrolofvariouscontentDSS,hightemperaturedeformationmechanismofthermalprocess,largedeformationhotrollingprocessofcoils,theeffectofbadphaseprecipitatedduringhottreatmentprocessonpropertiesandhighefficiencypicklingofhighCr/MocontentDSSplates.ThevariousalloycontentDSSplatesandwidecoldrollingcoils(3Re60,S32101,S32304,S31803,S32205,S32750andSUS329J4L)weresuccessfullydevelopedandusedinnationalimportantconstructions,keyindustriesandabroadprojects.

简介：

简介：Themainfailuremodesoftubingandcasingincurrentserviceconditionsarerepresentedinthisstudy.Theprogressofthetubingandcasingapplicationtechnologyandtheproblemsthatshouldbefocusedonduringapplicationareintroduced,withspecialattentionpaidtothereliabilityofthepipestringdesignandtheconnectionsealingproperties.Thenecessaryworkthatshouldbeundertakeninfutureresearchisalsosummarized.

简介：Ultrafastcoolingisanewtechnologywhichusedtocontrolthehot-rollingstripcoolinginrecentyearsontheinternationaldeveloped.Ifsuitablycooperatedwithanumberofothernewcontrolledrollingtechnologies,canachievefastandaccuratetemperaturecontrolinthehot-rolledstripproductionprocesstoobtaincorrespondingtransformationmicrostructureandidealmechanicalproperties.Thisarticledescribesthetechnicalprincipleandlayoutofultrafastcoolinginhot-rolledaswellasapplicationprofilesinthemajorironandsteelenterpriseinChinaandabroad.Carriedoutthelayoutofultrafastcoolinganalysisontheadaptabilityofsteelthatinstallbetweenthefinishingmillandlaminarcooling,onthisbasis,proposedtheuseofultrafastcoolingtechnologyproposals.

简介：Duringtheingotcastingprocess,theparametricchangesofthemoltensteelpouringprocessoftencausebothingotsurfaceandinternalqualitydefects.Withtheincreasinglywideapplicationofcomputersinindustrialtechnology,numericalsimulationsofthemoltensteelpouringprocessenablepredictionsofthedefectsthatwillariseduringthepouringandsolidificationprocess,especiallyforthemoltensteelflowduringtheearlystagesofcasting.Inaddition,usingacomputertosimulatethecastingprocessofa40tingotandsolidificationcanpreventmanydefects.Thesimulationresultsindicatethatcontrollingthepouringspeedtolessthan80kg/s,hangingthecastingpowderinamoldwiththehangingheightmaintainedat100-150mm,andcontrollingthetaperangleofthemoldbrickoutlettoasuitablelevelcanreducetheprobabilityofslagentrapmentandimprovetheinternalandsurfacequalityoftheingot.

简介：ThisstudydescribesanoverviewofthePOSCO'sBaosteel'sshort-flow(BSSF)slagprocessingproject,includingprocessflow,processset-up,equipmentcomposition,auxiliaryfacilitiesandrelevantparameters,aswellasabriefdescriptionofitsapplicationaftercommissioning.

简介：Instripsurfacequalityinspectionsystemsbasedonthemachinevisiondetectiontechnology,imagequalityisakeyfactoraffectingthefinaldetectionperformance.Compositeimagingmethods,suchasbrightanddarkfieldimagingorreflectionandtransmissionimaging,canrevealmoreinformationbyemphasizingdifferentimageaspects.Defectdetectionratesanddefectrecognitionaccuracycanbeimprovedbyintegratingandmatchinginformationfromdifferentimageacquisitionsettings.Practicalapplicationshowsthattransmissionandreflectioncompositeimagingcanimprovetheimagingqualityofpenetrativedefects,whtlebrightanddarkfieldcompositeimagingcanenhanceimagingofdefectssuchascolordeviationandstains.

简介：Inrecentyears,despitetheglobaleconomicrecessionandsteeloversupply,thedemandforhighstrengthsteel(HSS)andadvancedhighstrengthsteel(AHSS)sheetshasrobustlyincreased.Tosupplythematerialsneededforautomotivemanufacturing,variousAHSSproductsandapplicationtechnologieshavebeendevelopedbyBaosteel,includingthelst,2nd,and3rdGen.AHSS,whichmakesBaosteeltheworld'sfirststeelmakertocommerciallyprovideallthreegenerationsofAHSS.Recently,thenewGen.(the2ndand3rdGen.combined)AHSSproducts,whichfeatureultra-highstrengthandenhancedductility,havedrawngreatattentionfrombothsteelmakersandtheautomotiveindustryastheseproductscanbeusedtoproduceautopartswithcomplicatedshapesbycoldformingandhavegreatpotentialformanufacturingcarbodiesthatarelighterinweightandhavehighercrashresistance.Inthisarticle,theconcepts,properties,andapplicationsofBaosteel'snewGen.AHSSproducts,includingquenchingandpartitioning(QP)steels,twinning-induced-plasticity(TWIP)steels,andMedium-Mn(Mn-TRIP)steels,aredescribedandreviewed.Moreover,theprogressoftheBaosteellight-weightsteelcarbody(BCB)wasreported.

简介：Anonlinepinholedetectorbasedonthephotoelectricinspectionofcold-rolledsteelstripswasintroduced.Pinholedetectionisimportanttoguaranteethequalityofcold-rolledsteelstrips.ThedetectorherewasdevelopedindependentlybyBaosteel,andisdesignedbasedontheprincipleofphotoelectrictransfer.Typically,aninspectionlightsourceisinstalledabovethesteelstriptobeinspected,andaphotoelectricreceiverisinstalledbeneaththesteelstrip.Thepinholedetectorconsistsofasuper-brightLEDlightsourceandaphotoelectricreceiver,whichiscomposedprimarilyofphotomultipliers.Thesuper-brightLEDlightsourceilluminatesthestripsurface,andthelightthatpermeatesfrompinholesisdetectedandamplifiedbyaphotoelectricreceiver.Thephotomultipliertransformsthedetectedlightintoanelectricalsignal,whichislaterrecognizedandclassifiedbyasignal-processingcircuitandcollectedbyadata-acquisitioncard.Thedetectorcanaccuratelytrackthestripedgeandshieldthestripedgefromoutsidelight.Asaresult,thissystemcandetectapinholeinthestripedgewithasmallblindzoneontheedge.Mostimportantly,thedetectorexhibitsgoodinspectionaccuracyandcanaccuratelydetectapinholewithadiameterof155m.

简介：Inrecentyears,nitrogen-alloyedstainlesssteelshavebeenaresearchhotspotinthefieldofstainlesssteelproductandtechnology.Nitrogen-alloyedausteniticstainlesssteelsdevelopedbyBaosteelandtheirapplicationsareintroduced.Thesesteelsarenitrogen-controlledproducts304Nand316LN,nitrogencontainingeconomicalproductsBNseriesandhigh-nitrogenstainlesssteel(HNS)series.Theresultsshowthatthepresenceofnitrogencansignificantlyimprovethestrengthandcorrosionresistanceofsteelproduced.Bynitrogenalloying,economicalausteniticstainlesssteelswithconsiderablylessnickelthan304canbeobtained;thecorrosionresistancesofthesesteelsarealmostthesameas304.Furthermore,byascientificapproachofnitrogenalloying,high-nitrogensteelof0.8%nitrogencontentisfabricatedunderthenon-pressurizedconditions,andthepittingpotentialofthissteelis>1.0V.Atpresent,nitrogen-alloyedsteelsdevelopedbyBaosteelarewidelyutilizedinthemanufactureofcryogenicstoragecontainers,transportationcontainers,andmanyhouseholdwares.

简介：Inthispaper,theflatnesscontroltechnologyAnShaperTMforcold-rollingmillandindustryapplicationareintroduced.AnShaperTMincludes;partitioningpiezomagneticshapemeterforflatnessmeasurementforcold-rollingstrip;flatnessmeasuredsignalsprocessingsystembasedondigitalsignalprocessing（DSP）;flatnessfeedbackcontrolmodelsystembasedonthecontrolefficiencyofflatnesscontrolactuatorsandmodeladaptivefunction.TheapplicationverifiesthatstripflatnesscanmeettheneedofhighqualityproductbyusingAnShaperTM.Theaverageflatnessqualityisabout5Ⅰ-unitandthe0.18mmultrathinthicknessstripflatnessis10Ⅰ-unit.

简介：Abstract:Inrecentyears,withattentionpaidtoglobalenvironmentalproblems,therehavebeenrequirementsforcontinuousimprovementofautomobilefueleconomyandexhaustgaspurificationrate.Thepropertiesoftheferriticstainlesssteels(FSS)usedtomakeautomobilepartshavebeenimproved.Thispaperintroducestheconstructionofautomotiveexhaustsystemsanddescribestheirmainfailurebehaviorsandcorrosionevaluationprocedures.

简介：WiththeredesignedjigsfortheThermecmastor-Zthermalsimulator,thefeasibilityofusing3kindsofGleeblespecimensintheThermecmastor-Zsimulatorwasinvestigated.ResultsshowthatGleeblespecimenscanbeusedintheThermecmastor-Zsimulator.ThetensiontestsintheGleebleandThermecmastor-Zsimulatorsproducedresultswiththesametrend,whichprovesthatthehightemperatureductilityofGleeblespecimenscanbereflectedbytheThermecmastorZsimulator.Inaddition,astheThermecmastor-Zsimulatoroffersawiderheatingzone,bettercross-sectionshrinkageandelongationofspecimenscanbeachievedunderthesametestconditions.

简介：Becauseofthelowtemperature,largewastegasvolume,highpollutantcontent,andcomplicatedcompositions,wasteheatrecoveryandemissiongastreatmentofsinteringfluegashavealwayspresentedachallengeinthesteelindustry,andthisissuehasattractedwidespreadattentionbothlocallyandabroad.Recently,basedonthefirstdomesticpilotplantanddemonstrationproject,Baosteelhasperformedaseriesofinnovativeresearchanddevelopmentinvestigationsonitssinteringfluegasrecirculating(SFGR)process,inwhichthesystemdesignandoptimization,dioxin-relatedcontaminantsourcesuppression,orematchingstructureoptimization,wear-resistantdesignofcyclingfansandpipelines,high-efficiencydustremovalequipment,systemcontrolandstableoperationstrategy,fluegasmixingandswitchingcontrol,circularhoodsealing,oxygencontentconditioning,recirculationsinteringsystemprocesscontrol,andmodeldevelopmenthavebeenstudied,andacompletesetofequipmentandtechnologyfortheSFGRprocesshasbeeninitiallydeveloped.TheinvestigationresultssuggestthattheSFGRprocesscannotonlysignificantlyreduceexhaustgasvolumeandpollutantemissionsbutalsorecoverlow-temperaturewasteheatandreducetheenergyconsumptionofsintering;therefore,theoveralltechnologiespossessgreatvalueinenergysavings,pollutionemissionreduction,andsinteringorequality/yieldimprovement.

简介：BasedontheanalysisresultsofthedustsizedistributionoffluegasfromBaosteel'sshort-flow(BSSF)slagprocessingsystemandthemechanismofthewetscrubber,awetscrubbersystemwasdesignedandinstalledintheNo.1BSSFslagprocessingsystematBaosteel.Theresultsshowthatthedustremovalefficiencyoftheprevioussystemthathadconventionalwaternozzleswasonly69%withaliquid-gasratioof0.79L/m3,whilethedustremovalefficiencyreached94%whenthreesetsofhigh-efficiencydualphasespraygunswereinstalledinsideboththeflueandthechimney.Forthelattersystem,theliquid-gasratiowas0.84L/m3,andthedustconcentrationinthecleanedemissionsreducedtolessthan40mg/m3.

简介：Fluorineinmoldpowderisknownasharmfultohumanhealthandtheenvironment.Beingtheadvocateofgreenproduction,Baosteeldevelopedanenvironmentallyfriendlymoldpowderwithoutfluorine.Themainproblemoffluorine-freefluxfilmissmallheatresistanceandthustheheattransferintensityofthemoldistoolarge,whichtosomeextenthinderstheincreaseofthecastingspeed.Withtheheatflowsimulationequipment,controllingprecipitationofcrystalinfluxandsolidificationtemperatureproperly,fluorine-freemoldpowderforlowcarbonsteel,whichsubstitutesFwithB2O3,wassuccessfullydevelopedandappliedinindustrialproduction.Theproductionresultsshowthat,byusingboronicfluorine-freemoldpowder,theboronincrementinmoltensteelislessthan1.3ppmforconventionalaluminiumkilledlowcarbonsteel.

简介：Someofthemaincoolingprocessesandequipmentthatarecurrentlybeingusedinthecontinuousannealingprocessline(CAPL)atBaosteelareintroduced,aswellastheircoolingcontrolmodeltechniques,themodelingprincipiumandtheirapplicationresults.Withchartsindicatingthecontroltrendsinrealprocesses,thepowerfuladjustingabilityofthecontrolmodelswithprocessvariabledifferencesandtheirexcellentcontrolprecisionareshowninthisstudy.

简介：