简介：Bao-HitachiMetalRoll(NanTong)Co.,Ltd.onProductionTheconstructioncompletionandproduction-onceremonyofBao-HitachiMetalRoll(NanTong)Co.,Ltd.investedandestablishedbyBaosteelandJapanHitachiMetalwasheldon24thOctober.Bao-HitachiMetalRoll(NanTong)Co.,Ltd.issetbyjointventureofUSD65millioninvestedbyBaosteelandHitachiMetal,theconstructionstartedinSeptemberof2006.TrialproductionstartedonthebasisofcompletionofequipmentcombinedtestinAprilof2006.Theplantaimsatworldwidethinstriphotrollingplantsaspotentialclientsandprovideshighqualityhotrollingmillworkrollsproducedwithcentrifugallycastandstaticcast,etc.Accordingtotheschedule,themonthlyou

简介：

简介：

简介：Thepotentialapplicationsofsomehightenologiesinrefractories,suchas,nanotechnology,in-situsynthesis,self-propagatinghigh-temperaturesynthesis,functionalgradientmaterials,computerassisteddesignandsomenewadvancedrefactoriesinSi-Al-O-Nsystemarebrieflydescribed.Thecharacteristicsandpreparationprocessesofthesenewrefractoriesareintroduced,andtheremainingproblemsawaitingeffectivesolutionsarepointedout.Somesuggesionsonfuturediectionofresearchanddevelopmentarefitlymade.

简介：Sillimanite,kyaniteandandalusiteareadvantageousnaturalrefractoryrawmaterialsforaluminosilicaterefactoriestoattainimprovedkeyproperties.Thispaperaredividedintopartstointroducetheirresourceandtechnicalcharacteristicinthefirstpart,andtheirapplicationsinrefractoriesinthesecondaprttobesucceeded.Inthispart,basedonauthors'knowledgeandsources,informationontheirreserve,distribution,compositionandcharacteristicisprovided,tobringittolightthatChinaisrichinthereserveofthem,inparticularandalusite.Thesillimanitegroupmineralsarecharacterizedbytheirphasetransformationtoformprimarymulliteandsecondarymullitewhenaddedinhighaluminasystem,accompaniedbyvolumeexpansion,whichcanbetakenusetoimprovecreepresistancesandthermalshockresistanceoftherelatedrefractories.

简介：

简介：EffectofrareearthoxideonpropertiesofCaO-MgO-SiO2systembio-solubleceramicfibers.WangXitang,LiuHao,ZhangBaoguo,etal.(321-324).-Rareearthoxide,Ceramicfiber,Bio-solubility,Crystallizationbehavior-CaO-MgO-SiO2systembio-solubleceramicfibersweremadebymelting-spinningprocessusingnaturalwollastonite,talc,andquartzsandasmainstartingmaterials,andrareearthoxideasadditive.Theviscosityofthemelts,bio-solubilityandcrystallizationbehaviorathightemperaturesoftheceramicfiberswereinvestigated.Theresultsindicatethattheintroductionofrareearthoxide:(1)broadsthefiber-formingtemperaturerange;(2)reducesthesolutionspeedofCaO-MgO-SiO2systembio-solublefibersinlungliquidbutdoesn'tchangethebio-solubleattribute;(3)strengthensthenetworkstructureofthefibersandrestrainsthecrystallizationbehaviorathightemperatures.