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：Cr2O3-formingferriticstainlesssteelshavebeenwidelyexploredasintermediatetemperaturesolidoxidefuelcells（SOFCs）interconnects.However,theevaporationofchromiascalemightmigratetoandpoisonthecathode,leadingtodegradationofthecellperformance.Inthisstudy,Ni-Co-Fe-Pcoatingsweredepositedontheferriticstainlesssteelbymeansofacost-effectivetechniqueofelectrolessmethod.Theyareexpectedtobeconvertedinto（Ni,Co,Fe）3O4spinelwithahighelectricalconductivityandCTEmatchwithstainlesssteel,whichcanblocktheevaporationofchromiaformedonsteelsubstrateexposedtothecathodeenvironmentoftheSOFC.TheeffectsofpH,massratioofFeSO4/（FeSO4+NiSO4+CoSO4）andtemperatureofsolutiononthedepositionrate,compositions,surfacemorphologiesandstructuresoftheNi-Co-Fe-Pcoatingswereinvestigated.TheresultsindicatedthatthedepositionrateincreasedwithincreasingpHwhenpHwaslowerthan9andthenreducedwhenpHwashigherthan9.Thedepositionrateincreasedwithincreasingtemperaturewhentemperaturewaslowerthan80℃andthendecreasedwhentemperaturewashigherthan80℃.ThedepositionratedecreasedwiththeincreaseinmassratioofFeSO4/（NiSO4+CoSO4+FeSO4）.ThecoatingsconsistedofNi,Co,FeandP.Thephasestructureofthecoatingwasamorphous.

简介：本文讨论了分布式多层应用体系的结构、特点及实现技术。分析了用Delphi实现基于MIDAS技术的多层结构，并举例说明实现多层结构的步骤。

简介：Thedifferencesofreductionbehaviorsbetweenironorelumpandpelletswerestudiedbyconductinglowtemperaturereductiondegradation,staticloadreductionanddroplettests.Thesetestssimulatedtheconditionsofreductiontemperatureandhydrogen-containinggasinCOREX.Duetoitsdensestructureandlowporositycomparedwithpellets,lumporepossessespoorreductiondegradationindex(RDI)andslowerreductionrateinearlyandmediumreactionstages,showingsignsoflowerstrength,lowersofteningandmeltingtemperatures,aswellasawidermeltingzoneandhigherΔP.Thatprovidessomebasistoexplainthephenomenaofdifferentialpressurerise,metallizationdeclineandmorestickingaftertheusageoflumporeinCOREXplant.

简介：CO2emissionofthesteelindustrytakesupagreatproportionofthetotalemissionoftheworld.ItisnecessarytoreducetheCO2intensityofsteelproductsinordertosaveenergy,protecttheenvironmentandkeepasustainabledevelopmentinthesteelindustry.Basedontheresearchofsteelproducts'lifecycleinventory,thosewhoconductedthisresearchhavefocusedontheanalysisofCO2emissionfactorsandmeasures.Adoptingthelifecycleinventorymodelofacertainsteelmakingsite,togetherwiththeTornadoChart,theresearchershaveidentifiedsignificantfactors,providedsomeexplanation,andsuggestedsomepossiblemeasurestoreduceCO2emission.TheresultshaveshownthatthemostimportantfactorsaretheCO2intensityofblastfurnacegas(BFG),hotmetalratioofbasicoxygenfurnace(BOF)andthematerialutilizationefficiency.Accordingly,somemeasuressuchasremovingCO2inBFG,decreasingthehotmetalproportioninBOF,andimprovematerialutilizationefficiencyineachprocess,maybetakentodecreaseCO2emission.

简介：TheIronmakingPlantofTangshanIron&SteelCo.Ltd.takescleanproductionasitsorientation.Itdecreasessilicontosmeltthroughincreasingtheenteringfurnacesinterratio,stabilizingcokequalitybytacklingkeyproblems,increasingcoalinjectionratio,aswellaskeepingtheblastfurnacesmoothrunningandsoon.Theenergyconsumptionofsinterworkingprocedurehasbeengreatlyreducedthroughoptimizingtheoreblenderstructure,enhancingthequalityoffuelandflux,increasingthequicklimeamount,reclaimingtheremainingheatoftheannuluscoolingsystemanddeepeningthemateriallayertosinter.Wehaveachievedtherepetitioneconomyandthesecondlyresourcehasbeenusedsyntheticallywithadvancedproducingtechnics.Theenvironmentaroundtheplanthasbeengreatlyimprovedbypreventing,monitoringandfatheringthemovingpollutionroot,atthesametime,theeconomyandenvironmentdevelopmentinphasehasbeengreatlyaccelerated.

简介：以中碳钢板坯连铸保护渣为研究对象,采用光学显微镜及X衍射对渣膜的矿物组成及结构进行了分析。

简介：随着我国资本市场的逐步完善，特别是证券市场的飞速发展，企业筹资的枭元化致使企业间的股权关系越来越复杂，企业之间的控制关系也远远超出了直接控制这一范畴。我们将“母子孙企业结构”和“直接与间接合计控股企业结构”统称为多层控股企业结构。在多层控股企业结构下的会计报表合并目前暂无规范性指导文件，本文拟从湖南华菱涟钢有限公司实际情况出发对其进行探讨。

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简介：Theslidinggateusedtostopslagduringconvertertappingissimilartothecontrolofslidegateinladle,withtheslidinggatedeviceinstalledoutsidetheBOFtappingholetip.Owingtothequickopeningandclosing(in0.5s)oftheslidinggate,itcannotonlyeffectivelystopthepre-slagandpost-slagduringconvertertappingbutalsoautomaticallyjudgeandstopslagwiththehelpofAMEPAslagdetectingandPLCcontroltechnology.Currentlyitisregardedasthebestprocesstostopslagduringconvertertapping.

简介：日立金属宣布开发了使冷冲模寿命飞跃提高的表面处理技术。通过独特的复合PVD（物理真空镀膜）技术，开发了新的高硬度·低摩擦氧化膜，与过去的表面处理方法相比，冲模寿命延长了两倍以上。本技术面向冲模、冷锻模扩大范围，使安来工厂和加工网络的综合能力充分发挥作用，以强化表面处理事业。