简介：Throughout30yearsofimportation,adoptionandinnovation,theColdRollingPlantofBaosteelhasadheredtoamarket-orientedstrategy,andgraduallyexpandeditsoutputandraiseditstechnicallevelthroughtheexpansionofproductionscale,theoptimizationofproductionlines,thedevelopmentofhighaddedvalueproducts,theimprovementofproductquality,environmentallyfriendlymanufacturingandtechnologicalinnovation.Inthisway,theplanthasdevelopedintoaworldclasscoldrollingplantthatproducescutting-edgeeconomicandtechnicalindices.

简介：电炉厂采用100tUHP电炉短流程生产20G管坯钢。通过实施精料方针、规范脱氧工艺、优化吹氩处理工艺、选择最佳二冷区配水模型、采取钢水低过热度浇注、控制拉速、控制轧制温度等，产品能够满足市场需求。

简介：Baosteel's60000m3/hairseparationunit(ASU)isthelargestoxygengeneratingsysteminChina.Theoperationalcostofsuchagiantsystemisveryhigh.Howtoreducetheoperationalcostisacriticalissue.Thispaperdiscussesthesystem'scharacteristics,thecurrentoperationalstatusandthedifficultiesinreducingthecost,andanalyzesrelevantindicators,suchasthetechnicalandeconomicalindicatorsofindividualunitsandsystemsaswellastheindicatorsconcerningthecosts.Therelationshipbetweenthecostandeacheconomicalindicatorandmeasurestooptimizeaneconomicaloperationoftheoxygengeneratingsystemarealsodiscussedinthispaper.

简介：Fromtheviewofthedomesticandinternationalenergy,environmentandoperationsituation,thepaperanalysestheconfrontedproblemsofironandsteelindustry,answerswhybaosteelhasbeenfulfillingenvironmentoperationstrategy,andproceedtotheintroductionofitsenvironmentmanagementpracticeandfutureoutlooks.Theenvironmentmanagementisessentiallyagreenvaluecreation,whichemergestheenvironmentalprotectionintothewholebusinessenterpriseoperatesprocessinordertocreateitsvalue.Theenvironmentmanagementisakindofmanagementcreation,isakindofactiveenvironmentmanagement,whichpromotesthemainsenseofenergyconservationandemissionmitigation.

简介：IronmakingatBaosteelhasfocusedonblastfurnacesoverthelast30years.Afterpassingthroughthestagesof'learning','tracking','usage','experimentation','innovation'and'development',Baosteel'sproductioncapacityhasgrownsteadilyanditsstandardoftechnologyisincreasing.Remarkableprogresshasbeenmadeinthetechnologiesofblendingstack,thicklayersintering,lowsiliconandhighanhydroferritesintering,coalblending,andthehighproductivitywithhighpulverizedcoalinjection(PCI)rateandlongcampaignoftheblastfurnaces.Theentireironmakingprocessisdevelopinginthedirectionofhighefficiency,lowenergyconsumption,cleanproduction,andenvironmentalprotectionbecausethezerodischargeofsolidwasteandindustrialsewagehasbeenachieved.After20yearsofdevelopment,Baosteelhasbecomeamodernizedironproducerwithanannualcapacityof28.85Mtofsinter,7.26Mtofcokeand22.50Mtofhotmetal(PugangCorexfurnaceoutputincluded),anditsmaineconomicandtechnologicalindiceshavereachedaworld-classlevel.

简介：日前，第20届全国发明展览会在山东省威海市闭幕。会上，太钢共有12项专利获奖，其中，金奖3项，银奖5项，铜奖4项。

简介：张力变化直接影响到带钢轧制厚度的变化。控制张力变化是平整过程中一个非常重要的环节,在张力控制系统中,入口S辊的控制又是重点和难点,本文就入口S辊在张力控制系统中的作用及前后张力计算和调节作分析与讨论。

简介：SVC可以显著降低电弧炉变压器一次侧电压衰减，提高二次侧电压和变压器输出功率，有利于提高电炉产能，但同时也造成电炉冶炼电耗的增加。通过控制入炉功率或改善泡沫渣状况可以使冶炼电耗恢复到正常水平。

简介：Steelmakingisenergyandmaterialintensive.Thatiswhysteelisalwaysdemonizedandconfrontedwithincriminationsandrequirementsforreductionofitsenvironmentalimpact.Thosepuredemands-likeforemissiontradingareshort-sightedastheydonotbaseonanintegratedapproach.InsteadtheymerelyconsiderCO2emissionsduringtheproductionprocess.Aforward-looking,globalclimateandenvironmentalpolicyneedsasustainablelifecycleapproach.Thereforeitmustforexamplealsotakeintoaccountthecontributionofsteeltowardscuttingemissionsinitsapplication-intheenergy.automotiveandhouseholdsectors.Steelwillplayakeyroleinclimateprotection.One-thirdoftheremainingCO2reductiontargetplannedinGermanyby2020canonlybeachievedwiththehelpofinnovativesteelproductsandtheirapplications.ThisistheconclusionofanindependentstudybyTheBostonConsultingGroup（BCG）onbehalfofSteelInstituteVDEh,andGermanSteelFederation.ThestudycomparesCO2savingsfromimportantinnovativesteelapplications（suchasmoreefficientpowerstations,windturbines,orlightervehicles）withCO2emissionscausedbysteelproduction.Byadoptingthiscomprehensiveperspective,thestudyforthefirsttimeprovidesaCO2balanceforthematerialsteelbycomparingtheCO2reductionsmadepossiblethroughinnovativesteelapplicationswiththeCO2emissionsresultingfromsteelproduction.ThebalancewascalculatedonthebasisofeightselectedinnovativesteelapplicationsinGermanyfortheperiod2007to2020,wherebytheCO2emissionscausedbysteelproductionwereconsideredthroughouttheentirelifecycleoftheparticularsteeluse.Fortheselectedexamples,theuseofinnovativesteelsresultedinatotalsavingspotentialof74MtofCO2in2020.Thecalculationsarebasedonconservativeassumptions;forexamplewithoutcountingofpotentialsbyexportedsteelorbycomparisonwithcompetitivematerials.TheproductionofsteelinGermany,includingtheextractiono

简介：Baosteeldevelopedadigitalautomaticanalysistechniqueformaceralspecificationin2002.Thisanalysissystemcombinesdigitalimageprocessing,graphics,databases,expertsystems,artificialintelligenceandotheradvancedtechnologies.After6yearsofapplicationincokeproduction,thesystemproveditselfsuccessfulincoalqualitytestingandcoalblendingguidanceonmaceral.However,duringthislongprocess,someinadequacieswerefoundthatimpactedtheprecisionandaccuracyoftheanalysis.So,in2008Baosteelbegantoworkonimprovingthecoalmaceralanalysissystem.Theimprovementsincludedthefollowing:furtherupgradingandenhancingtheanalysisperformanceofmicroscopicimages;extendingthegraylevelstoincreasethereflectancemeasurementaccuracy64times;changingthefocusmethodandeffectivelyeliminatingtheinterferenceofhalo.Inaddition,animprovedimagerecognitionmethodwasadoptedtomaketheextractionofvitrinitemoreaccurateandanewmodelofcoalconstituentalgorithmwasaddedwhichcanaccuratelydeterminethecompositionofmaceral(exinite,vitrinite,inertinite).Sincetheseimprovementswerecompleted,thesystemhasachievedhigherautomation,speedandaccuracy,collectedmoreinformationandperformedmoreaccuratemaceralanalysisforcokeproduction.Meanwhile,theimprovedsystemhasprovidedareliableanalyticalbasisforthefurtherstudyontherelationshipbetweencokequalityandcoalblending.

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简介：不锈钢市场低迷前景并非悲观亚洲不锈钢市场供需基础脆弱，中国不锈钢市场不好的时刻已经度过，现货价格有所反弹。

简介：Inthelastthreedecadesnewstrongermodified9%Crsteelshavebeenintroducedinnewpowerplantswithsteamparametersupto300bar(1bar=10~5Pa)and600℃.Inordertofurtherincreasethesteamparametersofsteelbasedpowerplantsuptoatargetvalueof650℃/325baritisnecessarytodoublethecreepstrengthcomparedwithtodaysstrongest9%Crsteels,andatthesametimetheresistanceagainststeamoxidationmustbeimprovedbyadding12%Crtothesteel.However,sofarallattemptstomakestronger12%Crsteelshavebeenunsuccessfulbecausethehighchromiumcontentintroducedseveremicrostructureinstabilitiesinthetestedsteels.Recently,itwasfoundthatthemicrostructureinstabilitiesin11%-12%CrsteelscanbeexplainedbytheprecipitationofcoarseCr(V,Nb)NZ-phases,whichdissolvefine(V,Nb)Nnitrides.AnewpossibilitytousetheZ-phaseforstrengtheningof12%Crsteelshasbeenidentified,andthedevelopmentofstablestrongmartensitic12%Crsteelsbasedonthisconceptisexpectedtoallowtheconstructionof325bar/650℃steampowerplantsallbasedonsteel.

简介：叙述了Φ12mm螺纹钢三切分中线折叠现象产生的原因、改进方案及效果。

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简介：4、以下2幅图片是南非德班地区的一家污水处理设施使用3Cr12不锈钢制作的楼梯踏板、扶手。该设施安装于1984年，截止2000年为止，服役时间为16年。设施距离海岸线仅为50m，常年处于海风及高度腐蚀性污水侵蚀环境中，未发生锈蚀情况。

简介：石灰石中S、SiO2含量偏高是造成部钢炉料厂石灰质量差的主要原因，采用低S石灰石可显著改善石灰质量，并有良好的经济效益。

简介：ThechallengingconditionstoChina’ssteelindustrycurrentlyare:insufficiencyofnaturalresources,namelyironoreandcokingcoal,overcapacityofexistingfacilities,overconsumptionofenergyandheavyimpactonglobalenvironment.ThehealthydevelopmentofChina’ssteelindustrydependsonhowwecoulddealwiththesechallenges.

简介：Theproductionindexesweredeterioratedduetoqualitycoke,UtilizationFactor2.0t/m3·d,PCI100kg/T,AccordingtoAnalysistheMechanismofProductionoflowhotstrengthcokequalityonBlastFurnaceSmooth,ThecokecoldstrengthretainedM10<6.3overalongperiodoftimeinordertoinsurecokegranularityandpermeabilityindexincohesivezone;Aad<12andgranularitytranquilizationisusefulBFproduction.ThePCIprotectcokehotstrengthbyhighratebituminouscoals;highrateH2inBFgasbatecokedemolish.blastfurnaceoperation,onmonitoringandoperationBF,tranquilizationtheBLASTFURNACEtemperature,PTcontrolsparameterareaisabout1500℃;strengthenmanagementofpermeabilityindex,improveTop-pressureforBlastFurnace,StrengtheningtheManagementoftheRawMaterialsandFuel,logicalrateofsinterLeveloffabout70%toimproveMetallurgicalPropertiesofBurdens.ParametersofwindhavebeenadoptedAbout10000-11000kg·m/s;,theoreticalflametemperatureinablastfurnacehavebeenadjustedareaisabout2050-2200℃;thetemperaturedirectionaboutcopperstavemanagementestablishedact;accordingtothismeasures,AccordingtoImprovementCenterGasFlowInstabilityinthefirstplace,thegasflowdistributionturnstothereasonablestate.Strengthenfurnacecasthouseoperationect,UtilizationFactorimprove2.2t/m3·d,PCI130kg/T.ColdandhotstatestrengthindexesofcokeonBFproductionwereinstability.AccordingtooptimizetheOperatingParameteinspecificallyeconomytechnologyindexesconduction,theBFcondictioncankeepingsteadyandsmooth.