简介：Themechanicalandcorrosivepropertiesof00Cr13Ni4Mo(S13-4N)weretestedandcomparedwiththoseof00Cr13Ni6Mo(S13-6).Theeffectsofnitrogenonthepropertiesofthesteelswereanalyzed.Theresultsofthetensileandcorrosiontestsshowthestrength,theductility,andthepittingcorrosionresistanceofS13-4Narehigher,lowerandpoorerthanthoseofS13-6respectively,whentemperedatatemperaturebelow550℃andviceversawhenthetemperingtemperatureishigherthan550℃.TheresultsoftheX-raydiffraction(XRD)andtheelectronbackscattereddiffraction(EBSD)analysesrevealthatinversedausteniteappearsat550℃andtheamountofitpeaksat600℃withthebestductility.AndthetotalamountoftheinversedausteniteinS13-6ismorethanthatinS13-4Nindifferentforms.Nitrogenperformsbetterintermsofstabilizinginversedaustenitewhilenickelismorefavorableforforminginversedaustenite,theamountandstabilityofwhichaffecttheductilityremarkably.ThereasonfortheembrittlementofS13-4Nat450℃canbetheresultofcarbideandnitrideprecipitatingatgrainboundaries.

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简介：本文叙述了转炉炼钢厂4#连铸机自动配水存在的问题，详细介绍了改造后的控制方法及软件编程。

简介：针对酒钢4号265㎡烧结机优化配料的问题,对其所用大宗铁精矿、粉矿进行了烧结性能研究,并对几种主要铁料进行了合理配矿烧结杯试验研究。根据大宗铁精矿、粉矿的烧结性能,由优到劣进行了排序,推荐了4号烧结机合理配矿结构。

简介：AhighalloyedVanadis4(V4)steelwasproducedbysprayformingprocessinBaosteel,andthemicrostructureoftheas-sprayedsteelanditsevolutionduringhotrollingandannealingprocesseswerecharacterized.Itwasfoundthattheas-sprayedV4steelhasahomogeneousandfinescalemicrostructurewithuniformdispersionofcarbides.Thehotrollingtemperatureisthekeyfactorincontrollingtheevolutionoftype,morphologyanddistributionofcarbides,aswellasthematrixmicrostructureoftheas-rolledsteels.Theoptimizedprocessingparametersfortheas-sprayedV4steelarerollingat1050℃andthenannealingat900℃.Themicrostructuralevolutionmechanismsduringhotrollingandannealingaredeterminedaccordingtothemicrostructuralanalyasisofthematerialatdifferentstages.

简介：随着酒钢4#烧结机的投入生产，机械设备的结构也呈多样化和复杂化，对检修技术提出更高的要求。本文通过对4#烧结机全悬挂柔性传动装置检修技术的的介绍．阐述在烧结机主传动装置拆装工艺过程中应注意的几个环节，正确安装滚套、扭力杆等主要零部件技术要领，从而全面掌握全悬挂柔性传动装置检修技术。

简介：简要介绍4#、5#高炉探尺结构及工艺要求,具体阐述S120变频装置在高炉探尺系统中的实际应用及故障处理情况。

简介：Hydrogen,asatemporaryelementintitaniumalloys,isverygoodincontrollingmicrostructure.ThemicrostructureandphasetransformationofTi6A14ValloyareaffectedbytheamountofTiH,addedintothemeltofTi6A14Valloyduringtheinductionskullmelting（ISM）process.Thisprocess,calledmelthydrogenation,wasstudiedinthispaperthroughtheuseofopticalmicroscopy,scanningelectronmicroscopy（SEM）andtransmissionelectronmicroscopy（TEM）.Theresultsareasfollows:aftermelthydrogenation,boththesolidificationmacrostructureandmicrostructureofTi6A14Valloyarerefined;theαphaseprecipitatesinalamellarformwiththeresidualβphasefromthegrainboundaries;δ-hydridesprecipitateduringthesolidificationprocessasaresultoftheexistenceofhydrogen.TheSphasewithanF.C.C.structurecanbeobservedbyTEMintheαphaselaminaeofspecimenswith1.25%TiH2.Inaddition,thedependenceofthemicrohardnessofspecimensontheweightpercentageofTiH,addedtothemeltduringtheISMprocesswasalsostudied.

简介：为研发和生产高端不锈钢，永兴特钢投资4亿元的炼钢连铸技改项目，已被列入2010年市工业转型升级项目，这正是永兴特钢高端化转型升级的实质性举措。目前这一技改项目已进入设备的安装调试阶段，预计下半年即可实现投产，可实现年销售收入43亿元、利税4．96亿元。

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简介：罗马尼亚能源部长AndreiGerea10月15日宣布，切尔纳沃德核电站3、4号机组的谅解备忘录将在11月份敲定并签署。

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简介：菲律宾TQGT矿业集团已按照FOB方式同中国买家签订首批镍矿买卖合同，其镍矿已开始大批量积港，预计3月中下旬将完成首批货物约8万吨镍矿积港，第一批镍矿最迟将在3月底到4月初发往中国。

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