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

  • 标签: HCR技术 应用 钢铁 宁波 直接热装轧制 DHCR
  • 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.

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  • 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.

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  • 简介:ApplicationofRareEarthsinOilCountryTubularGoodsLinQin(林勤),YaoTingjie(姚庭杰),LiuAisheng(刘爱生)ChenNing(陈宁),YeWen(叶文),YuZongsen(余宗森...

  • 标签: RE PURIFYING MOLTEN STEEL MODIFYING inclusion
  • 简介:Themainfailuremodesoftubingandcasingincurrentserviceconditionsarerepresentedinthisstudy.Theprogressofthetubingandcasingapplicationtechnologyandtheproblemsthatshouldbefocusedonduringapplicationareintroduced,withspecialattentionpaidtothereliabilityofthepipestringdesignandtheconnectionsealingproperties.Thenecessaryworkthatshouldbeundertakeninfutureresearchisalsosummarized.

  • 标签: tubing and CASING SERVICE CONDITION FAILURE
  • 简介:Theneedformoreactiveandhydrothermallystablefluidcatalyticcracking(FCC)catalyststocombattheeffectofmetalcontaminantshasledtoanincreaseindemandforrareearthoxides.RareearthoxidesenhancecatalystactivityandpreventthelossofacidsitesduringtheFCCunitoperation,especiallywhenheavyresiduewithhighmetalcontentisusedasfeed.Inthispaper,areviewwascarriedouttoshowtheeffectsofrareearthelementsonthestructure,activity,andstabilityofFCCcatalysts.Also,theuseofrareearthelementsasvanadiumtrapswasanalyzedinconjunctionwiththemechanismofcatalystdeactivationbyvanadium.TheobjectivewastoelucidatetheinteractionofvanadiumspecieswiththezeolitecomponentoftheFCCcatalystsandtheroleofrareearthelementsincounteringthedeleteriouseffectsofvanadiumontheFCCcatalysts.

  • 标签: 流化催化裂化 稀土氧化物 催化剂活性 FCC催化剂 催化裂化催化剂 钒催化剂
  • 简介:ApplicationoftheEu3+IonforSiteSymmetryDeterminationBinnemansK,Gorller-WalrandC(UniversityofLeuven,DepartmentofChemistry,Co?..

  • 标签: EUROPIUM LANTHANIDES Crystal field SPECTROSCOPY Optical
  • 简介:Ultrafastcoolingisanewtechnologywhichusedtocontrolthehot-rollingstripcoolinginrecentyearsontheinternationaldeveloped.Ifsuitablycooperatedwithanumberofothernewcontrolledrollingtechnologies,canachievefastandaccuratetemperaturecontrolinthehot-rolledstripproductionprocesstoobtaincorrespondingtransformationmicrostructureandidealmechanicalproperties.Thisarticledescribesthetechnicalprincipleandlayoutofultrafastcoolinginhot-rolledaswellasapplicationprofilesinthemajorironandsteelenterpriseinChinaandabroad.Carriedoutthelayoutofultrafastcoolinganalysisontheadaptabilityofsteelthatinstallbetweenthefinishingmillandlaminarcooling,onthisbasis,proposedtheuseofultrafastcoolingtechnologyproposals.

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

  • 标签: 铸造工艺优化 数值模拟 应用 计算机模拟 质量缺陷 浇注过程
  • 简介:ThisstudydescribesanoverviewofthePOSCO'sBaosteel'sshort-flow(BSSF)slagprocessingproject,includingprocessflow,processset-up,equipmentcomposition,auxiliaryfacilitiesandrelevantparameters,aswellasabriefdescriptionofitsapplicationaftercommissioning.

  • 标签: 钢渣处理 应用 技术 熔融 工艺流程
  • 简介:Instripsurfacequalityinspectionsystemsbasedonthemachinevisiondetectiontechnology,imagequalityisakeyfactoraffectingthefinaldetectionperformance.Compositeimagingmethods,suchasbrightanddarkfieldimagingorreflectionandtransmissionimaging,canrevealmoreinformationbyemphasizingdifferentimageaspects.Defectdetectionratesanddefectrecognitionaccuracycanbeimprovedbyintegratingandmatchinginformationfromdifferentimageacquisitionsettings.Practicalapplicationshowsthattransmissionandreflectioncompositeimagingcanimprovetheimagingqualityofpenetrativedefects,whtlebrightanddarkfieldcompositeimagingcanenhanceimagingofdefectssuchascolordeviationandstains.

  • 标签: 成像方法 带钢表面 复合场 表面质量检测 应用 缺陷检出率
  • 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.

  • 标签: automotive steels NEW Gen.advanced high strength
  • 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.

  • 标签: 冷轧带钢 探测器 针孔 开发 光电接收器 LED光源
  • 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.

  • 标签: 奥氏体不锈钢 控氮 宝钢 应用 开发 不锈钢产品
  • 简介:Inthispaper,theflatnesscontroltechnologyAnShaperTMforcold-rollingmillandindustryapplicationareintroduced.AnShaperTMincludes;partitioningpiezomagneticshapemeterforflatnessmeasurementforcold-rollingstrip;flatnessmeasuredsignalsprocessingsystembasedondigitalsignalprocessing(DSP);flatnessfeedbackcontrolmodelsystembasedonthecontrolefficiencyofflatnesscontrolactuatorsandmodeladaptivefunction.TheapplicationverifiesthatstripflatnesscanmeettheneedofhighqualityproductbyusingAnShaperTM.Theaverageflatnessqualityisabout5Ⅰ-unitandthe0.18mmultrathinthicknessstripflatnessis10Ⅰ-unit.

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

  • 标签: 铁素体不锈钢 汽车排气系统 评价程序 汽车燃油经济性 失效 应用
  • 简介:WiththeredesignedjigsfortheThermecmastor-Zthermalsimulator,thefeasibilityofusing3kindsofGleeblespecimensintheThermecmastor-Zsimulatorwasinvestigated.ResultsshowthatGleeblespecimenscanbeusedintheThermecmastor-Zsimulator.ThetensiontestsintheGleebleandThermecmastor-Zsimulatorsproducedresultswiththesametrend,whichprovesthatthehightemperatureductilityofGleeblespecimenscanbereflectedbytheThermecmastorZsimulator.Inaddition,astheThermecmastor-Zsimulatoroffersawiderheatingzone,bettercross-sectionshrinkageandelongationofspecimenscanbeachievedunderthesametestconditions.

  • 标签: 拉伸试验 热模拟 扩展应用 试验样品 模拟器 截面收缩率
  • 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.

  • 标签: 烧结烟气 循环过程 商业应用 宝钢 污染物含量 烧结系统
  • 简介:BasedontheanalysisresultsofthedustsizedistributionoffluegasfromBaosteel'sshort-flow(BSSF)slagprocessingsystemandthemechanismofthewetscrubber,awetscrubbersystemwasdesignedandinstalledintheNo.1BSSFslagprocessingsystematBaosteel.Theresultsshowthatthedustremovalefficiencyoftheprevioussystemthathadconventionalwaternozzleswasonly69%withaliquid-gasratioof0.79L/m3,whilethedustremovalefficiencyreached94%whenthreesetsofhigh-efficiencydualphasespraygunswereinstalledinsideboththeflueandthechimney.Forthelattersystem,theliquid-gasratiowas0.84L/m3,andthedustconcentrationinthecleanedemissionsreducedtolessthan40mg/m3.

  • 标签: 湿式洗涤器 系统安装 渣处理 宝钢 应用 除尘效率