简介：LuminescencelifetimeofCe（Ⅲ）forCe0.9RE0.1P5O14,whereREdenotesrareearthionsotherthanCe（Ⅲ）,wasmeasuredbymeansofthetime-correlatedsinglephotoncountingtechnique.Ithasbeenfoundthatthelifetimedataarecapableofelucidatingtheenhancementorquenchingofcerium（Ⅲ）luminescencebyalienREions（otherthanCe）indoublydopedceriumpentaphosphatecrystal.

简介：ThechemicalstateofgrainboundarycosegregationofCeandPinFe-P-CealloysystemwasstudiedbymeansofAugerElectronSpectroscopy(AES).TheAugerpeaksofCesegregatedatgrainboundariesarefoundwithintherangeof60～180eV.BycomparingwiththeAugerspectraoftheFe-Ce-Pintermetalliccompound,itissupposedthatthereisatwo-dimensionalinterfacialphaseatgrainboundarieswithCeandPcosegregationwhichissimilartothestructureoftheFe-Ce-Pcompound.

简介：本文通过增加拔火器、喷水装置、砌筑卫燃带、改装放灰装置等方法,对锅炉进行综合改造,从而达到节约能源和保护环境的目的.

简介：针对P9等高合金钢成分及凝固特性,钢锭容易产生缩孔、疏松、内部裂纹等缺陷,对钢种特点、模铸工艺和钢锭模等工艺要点进行研究,提出了改进P9系列高合金钢的工艺措施。通过对钢水温度和浇注速度的控制,可以有效解决缩孔过大的问题,降低了生产成本,提高了产品质量。

简介：天津蓟县燕山中学教授卢大明受磁悬浮列车运行启发，经多个研发制成的吸合型磁悬浮阀门，成功破解了阀门磨损、泄漏的技术难题，日前获得了5项国家专利。

简介：太钢5号高炉为现役大高炉寿命最长高炉,随着一代炉役寿命的临近,高炉顺行及指标受限于护炉需要,长期配加钒钛矿,炉缸活跃程度下降,极大增加了5号高炉气流控制难度,太钢炼铁厂为实现高炉长寿和顺行,在控制高炉炉况波动程度、失常恢复方面积累了一定操作经验。

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

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简介：针对金川镍选厂５＾＃系统存在的问题，在深入调查和分析论证的基础上，确定了５＾＃系统工艺流程改造方案，改造后效益显著提高。

简介：介绍了38MnB5高碳钢的冶炼控制材料的洁净度及轧制后冷却工艺制度等关键技术,成功的生产出38MnB5热轧卷板,并满足用户的要求。

简介：全精粉烧结矿在太钢5号高炉的应用实践,丰富了太钢高炉在炉料结构方面的调剂手段,减少太钢对外矿的依赖度,同时,给国内同行业拥有自有矿山的企业使用全精粉烧结技术奠定了理论基础和实践经验;另外,在钢铁企业微利时代,使用全精粉烧结矿可以极大程度节约企业现金流,为企业的生存发展起到了积极的作用。

简介：介绍了太钢5号高炉近期的炉体热负荷分布状况,合理的炉体热负荷分布对高炉生产的重要性。并分析影响热负荷的因素关系,提出高炉热负荷的合理范围和控制方法。

简介：ThemeasurementsoftemperaturedependenceofthemagneticsusceptibilityofLa1-xSrxCoO3perovskiteoxidesatdifferentSrdoping(0≤x≤0.5)andannealingtemperaturewerepresented.Forthesamplewithx=0.1,ashoulderwasobservedaround150K,andapeakwhichisonefeatureofspinglassappearedaround50Kinthecurveofsusceptibilityversustemperature.Thehigh-temperature(250～420K)susceptibilityfitswellwithCurie-Weisslawforallsamples.WeissconstantandeffectivemagneticmomentweredeterminedandtheirvariationswithSrdopingandoxygenannealingconditionwereobtained.TheWeissconstantincreasesmonotonouslywithSrcontentforx>0.2.Thevaluesofeffectivemomentswereinterpretedwiththespinstateofcobaltions.Studiesonthesusceptibilitiesofthesampleswithx=0.2underdifferentpreparationtemperaturesandannealingtemperaturesshowthattherisingofsinteringtemperatureandannealingtemperaturewillincreasethepara-ferromagnetictransitiontemperature,andreducetheeffectivemomenttonormalvalue.OurresultshowsthatbothCo3+andCo4+ionsshouldbeinISstateafterannealingandtheoxygenannealingcausesthetransitionofCo3+spinstatefromHStoIS.

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简介：探讨了在大生产条件下4Cr5MoSiV1钢的脱碳层测定原则。结果表明,金相法测定结果较准确且操作简便

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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：Ni-W-P-CeO2-SiO2nano-compositecoatingswerepreparedonthecarbonsteelsurfacebypulseco-depositionofnickel,tungsten,phosphorus,nano-CeO2andnano-SiO2particles.Theinfluenceofnano-SiO2particlesconcentrationsinelectrolyteonmicrostructuresandpropertiesofthenano-compositecoatingswereresearched,andthecharacteristicswereassessedbychemicalcompositions,elementdistribution,depositionrate,microhardnessandmicrostructures.Theresultsindicatethatwhennano-SiO2particlesconcentrationsinelectrolytearecontrolledat20g·L-1,thedepositionratewith27.07μm·h-1andthemicrohardnesswith666Hvofthenano-compositecoatingsarehighest,elementlinescanningandareascanninganalysesshowthattheaveragecontentsofelementsW,P,SiandCeinthenano-compositecoatingsareclose,displayingthatthedistributionofeveryelementwithinthenano-compositecoatingsiseven.Anincreaseinnano-SiO2particlesconcentrationsinelectrolyte(whenlowerthan20g·L-1)leadstorefinementingrainstructureofnano-compositecoatings,butwhenitimprovedto30g·L-1,thecrystallitesizesincreaseagainandinthemeantimetherearealotofsmallbosswithnodulationshapeappearingonthesurfaceofnano-compositecoatings.

简介：TheSmBaCuMO5+δ(M=Fe,Co,Ni)(SBCM)powdersweresynthesizedbythecitratesol-gelmethodandthepowdersweresinteredtoceramicpellets.ThepowdersandsinteredceramicpelletswerecharacterizedwithXRD,TEMandSEMmeasurements.ThecathodecatalyticperformancesofSBCMceramicpelletsforammoniasynthesiswerestudiedfromwethydrogenanddrynitrogenatatmosphericpressureandlowtemperature,usingSBCMceramicpelletsascathode,Nafionprotonexchangemembraneaselectrolyte,Ni-Ce0.8Sm0....