简介：通过对欧标S355J2+N中厚板正火实验研究,总结了正火温度、正火保温时间及不同轧制冷却工艺条件下对产品性能变化的影响,提出了对正火轧制产品的看法及建议。

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

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简介：Thecrackingandaromatizationofn-hexaneoverH-ZSM-5modifiedbyvariousrareearthswereinvestigatedbymeansofcontinuousflowmicro-reactor.ThesurfacepropertiesofmodifiedH-ZSM-5catalystswereobtainedfromIR,XRDandXPS.Theresultsshowthattherareearthsenhancethearomatizingpropertiesofthecatalystswhicharepreparedbymechanicalmixturemethod.Theresultsofn-hexanecrackingandaromatizationarecorrelatedwiththeacidity.TheBrnstedacidicsitesaretheactivesitesofn-hexanearomatization,whileLewisacidsiteplaysanimportantroleinn-hexanecracking.

简介：Silicawasused,asacatalystcarrier,toloadceroussulfateforcatalyzingthesynthesisofn-butylacetate.Themainpurposeofthisresearchwastoexplorethefeasibilityofsilicainimprovingthedecentralityandactivityofthecatalyst.Theeffectsofmolarratioofbutylalcoholtoaceticacid,theceroussulfateloadingsandthereactiontimeontheconversionofaceticacidwerestudiedbysinglefactorexperimentmethodandorthogonalexperimentmethodrespectively.Therefractiveindex(n20D)andmolecularstructureofthepreparedn-butylacetateweremeasuredbyAbbeRaefractometerandFourierTransformInfraredspectroscope,respectively.Thecomparisonsofthesilicaloadedandunloadedcatalystsforcatalyzingthesynthesisofn-butylacetateweremade.Theresultsshowedthatthesuitableconditionsforsynthesizingn-butylacetatewere:molarratioofbutylalcoholtoaceticacidof1.4∶1,uselevelofloadedceroussulfateof0.30gandreactiontimeof50min,respectively.Themaximumconversionofaceticacidforthesilicaloadedcatalystreached98.62%whichwas12.32%and16.43%higherthanthosefortheunloadedcatalystsreportedinliteratures,buttheuselevelofceroussulfatefortheformerwasmuchlessthanthoseforthelattersundersimilaroptimaltechnicalconditions.Thesilicawasprovedtobeagoodcatalystcarrierforenhancingdecentralityandactivityofthecatalystandincreasingtheconversionofaceticacid.Therepentanceofthesilicaloadedceroussulfatewasalsoinvestigatedintheexperiment.

简介：SeveralREEdatasetswerecollectedinCoreDD2andEC2005intheinnershelfofEastChinaSea,CoreY127inthenorthernOkinawaTrough,CoreNT1,C9247andC92169inthesouthYellowSeatochecktheapplicabilityoftheδEuN-ΣREEsmodelforquantita-tivelydistinguishingsedimentsfromtheYangtzeRiverandtheYellowRiver.Bycomparison,severalsedimentsincoresDD2,EC2005,Y127aregenerallyinaccordancewiththismodel.ThecoresNT1,C9247andC92169,whichhavebeeninfluencedbytheYangtzeRiverandtheYellowRivertogether,however,wereinconsistentwiththeδEuN-ΣREEsmodel.TheδEuN-ΣREEsplotanditscorrespondingregressionequation,whichcouldbeusedtodistinguishsediments＂intuitivelyandquantitatively＂fromtheYangtzeRiver,andtheYellowRivershouldbereconsideredorreassessed.

简介：通过合理的成分设计,采用洁净钢冶炼工艺、两阶段轧制技术、热处理生产技术,成功的研制出符合客户要求的正火态热处理管线钢。通过性能检验,产品晶粒细小、组织均匀、性能富裕量较大,完全可以满足用户大批量供货要求。

简介：二高度光的铕(III)和铽(III)的准备有succinimide(SI)和N-hydroxysuccinimide(NHSI)的建筑群被报导，它进一步通过元素的化学分析，热分析，英尺红外，粉末X光检查衍射，SEM和荧光光谱学被调查。通过这些分析收集的数据揭示了Eu(III)的形成，有上面的Tb(III)建筑群对ligand在金属提及ligands(M:L)1:3的臼齿的比率。光中心从photoluminescent系列调查被保留的关于通过lanthanide的协作地点的有效促进感受性的有趣的结论。当时，强壮的光排放在Eu(III)-SI和Tb(III)-NHSI建筑群的情况下被观察-SI建筑群展出了的相应Eu(III)-NHSI和Tb(III)没有相片光性质。最新获得的光lanthanide建筑群可能具有为在光电子的各种各样的应用的特别兴趣。

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.

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简介：本文探讨下列二阶非线性微分方程（a（t）x′（t））′+B（t,x（t）,x（g1（t））,x′（t）,x′（g2（t）））=d（t）解的渐近性。基于解的不同特征性态,给出了解的分类;并且,建立了一些解的渐近性结果。此外,文中还将所获得的结果与文献上同类结果作了比较,说明本文是先前文献的拓展。

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：采用理论计算与热分析相结合的方式对N08904超级奥氏体不锈钢的液相线温度进行了计算测试,提出了合理的过热度参数,解决了连铸易漏钢问题,实现了连铸生产。

简介：介绍了南钢开发E36N高强船板的主要技术思路和关键工艺控制。通过对炼钢工艺的严格控制，得到了较高纯净度、内部质量较好的连铸坯；通过微合金化、合理的控轧控冷和正火工艺，得到了组织较细化的E36N钢板，具有优良的综合力学性能，满足供货要求。

简介：利用某公司生产的精铋（4N）作为阳极，采用氟硅酸铋-氟硅酸溶液为电解液，进行精铋电解生产5N高纯铋试验。试验结果表明，以氟硅酸铋-氟硅酸溶液作为电解液，进行精铋电解能生产出5N高纯铋，解决了传统铋电解精炼过程中杂质铅难以除去的问题，为5N高纯铋的生产提出了一条新的可行途径。

简介：中厚板卷厂通过转炉终点碳含量控制，LF白渣精炼，RH真空脱气、钙处理，连铸机加强保护浇注，使用低碳保护渣生产低碳低阻钢，铸坯低倍情况良好，轧后性能符合要求。

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：本文介绍了永平铜矿乳化剂厂Ｓ－－８０合成工艺进行的方法，并对改进前后的效果进行了对比，证明了工艺的改进是成功的，值得相关企业借鉴。