简介：Thepaperintroducesrefractoriesforcontinuouscasting,especially,refractoriesforcontinuouscastingforcleansteelinbaosteel.Developingdirectionofrefractoriesforcontinuouscastinghasbeenpointedouttosatisfythenewmetallurgicaloperatingpractice.

简介：InfluenceofadditivesandcompositionofthematrixonmecharicalpropertiesofSialonbondedcorundumbrickwithappropriatenitridationsinteringcurvewasinvestigatedinpresentpaper.ThephasecompositionandmicrostructureofthesinteredspecimenwereanalyzedbymeansofSEMandXRD.Theresultsindicatethatwithappropriatecontentofultra-finealuminapowderandaditiveA,bothcoldandhotmechanicalpropertiesofspeimensarenotablyenhanced.Themicrostructureofspecimenisdenseandwithlessporosity,Mainphaseofthespecimeniscorundum,β－sialonisalsoobservedasthebondingphase,littleimpurityisobserved.

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简介：Atabularcorundum(TC)withα-Al2O3asmaincrystallinephazsehasbeenmadebyelec-tro-fusionmethod,Itsphysicalandchemicalpropertiesare:Al2O399.11%,SiO20.07%,Fe2O30.04%Na2O30.23%,granularbulkdensity3.89g/cm^3.

简介：ThispaperreviewsthehistoryofdevelopmentandproductionofsilicabricksatLuoyangRefrac-tories(Group)Co.,Ltd,(FormerLuoyangRefrac-toriesFactory).Throughtheimprovementandin-troducingtechnologyfromabroadthecompany'smanagementandqualitystandardonsilicabricksproductionhasreachedahigherlevel.Thephysicalandchemicalspecifications,aswellastheappear-anceofsilicabricksforcokeovens,hotblaststovesandglasskilnshavereachedtheadvancedinterna-tionallevel.NowthecompanyhasbecomeproducingbaseandmainexportingbasevariouskindsofsilicabricksinChina.

简介：Low-creepandalusitebricksarecharacterizedbyhighrefractorinessunderload,goodanti-creepproperty,highmechanicalstrength,lowporosity,goodthermalshockresistance,etc.Inthisstudy,low-creepandalusitebrickspecimenswereinvestigatedinthelabusingmullite,bauxiteandandalusite.Andalusitewiththedifferentparticlesizeswereusedintheexperimentandthespecimenwiththebestpropertywasselectedastheproductionstandard.Inaddition,theindustrialproducedlow-creepandalusitebrickswerecomparedwithotherlow-creepbricks.Theresultsshowthatthedevelopedlow-creepandalusitebricksisanexcellentmaterialforhotblaststove.

简介：TheapplicationstateofanhydroustapholeclayinChinaandoverseaswasintroduced.Thecharactersandrequirementsofstartingmaterialsofanhydroustapholeclayforblastfurnace,andtheformulationandpropertiesofanhydroustapholeclayinsomeplantswerementioned.Theenvironmentproblemsofanhydroustapholeclaywerediscussedandthedevelopingtrendwaspointedout.

简介：ThetendsofrefractoriesdevelopmentinChinainthenewcenturyhavebeendiscussed,ThemainR&Dthemesforthefirstdecadearesuggestedtobasfollow:(1)Highqualitysyntheticrwamaterialsbasedonourrichresourcesofbauxiteandmagnesite;(2)Highperformancefunctionalrefractoriesbasedonsyntheticrawmaterials;(3)Oxideandnonoxidecompsitematerialsprinci-pallyforapplicationsatcriticalareasofhightemperaturenewtechnologies.

简介：Thedistributionofrefractoryrawmaterialresources,itsthroughputcapacity,productvanetiesandqualityaswellasmarketsituationinChinawereinvestigated.

简介：Thedevelopmentandapplicationofdomesticspinelandhigh-alumian/spinel(includingcorun-dum/spinelandcalcined-bauxite/spinel)castablesweredisucssedinthispaper,Itexpoundedthetech-nicalcharactersandvirtuesofhighgradeandmedi-umgradespinelandtheimportanceofthedevelop-metandsuccessfulapplicationofcalcined-bauxite/spinelcastalbes.Becauseofthetechnicalandeco-nomicalfeasibility,thedevelopementandapplicationofspinelandhigh-alumina/spinelcastables,inwhichdomesticrefractoryworkersplayanimportantrole,havebeenflurishing.

简介：ForChina'srefractoriesindustry,thefirsttwodecadesinthenewcenturywouldbeaperiodofstructuraloptimizationwithreorganizationofrefractoriesenterprises,reconstructionofmanufacturingplantsandrestructuringofproductvarieties.Animportantstrategicmeasureshouldbetodevelophighqualitysyntheticrawmaterialsandhighperformancefunctionalproductsmainlybasedonourrichnaturalresourcestocopewithnewdemandsofadvancedhightemperaturetechnologies.

简介：Thereproducingalumina-magnesia-carbonbrickswerepreparedwiththedumpedbricksasstartingmaterials.Thebulkdensity,apparentporosity,crushingstrength,modolusofruptureandslagresistanceofthespecimenwereanalyzed.Theresultsshowthattheusedrefractoriescanbereusedandrecycledbytherightmethod.Thereproducingalumina-magnesia-carbonbrickswithbetterabilitieswereprepared.

简介：Theresearchdevelopmentonnewdryvibratingre-fractories,magnesiabasedslagdamandbubblecurtainbarricadeforcontinuouscastingtundishwasintroduced.

简介：Ascokeovenbecominglarger,silicabrickforcokeovenisrequiredtobeofhighuqality,LuoyangRefractories(Grop)Co.Ltd.(LRCO)hasre-searchedthemineralizerwhichcontainsCa^2+,R^+,Al^3+,F^-,emphaticallyandproposedtheprincipleofcompositemineralizerbasdonthepropertiesofrawmaterialsused.Highperformancesiliabrickwhichischaracterizedbylowthermalexpansionrate,goodhightemperatureproperties,residualquartz<0.5%,truedensity2.31,andhighbulkdensitysilicabrickforcarbonizationroomwithapparentporosity13%,bulkdensityl.96g/cm^3havebeendevelopedandproducedsuccessfullybyLR-CO.Thequalityofthebrickshasreachedtheinter-nationaladvencedlevel.

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简介：Low-creepratebrickH1SSandH2SShavebeenstudiedinLuoyangRefractoriesCo.,Ltd.onthebasisofformerresultsusingdifferentgradesyntheticmulliteandnaturalsillimaniteconcen-trate,Goodmicrostructureandhightemperaturepropertiescanbeobtainedbyusinghighqualityrawmaterialandreasonableproportioningandtechnology.ThecreepvaluesofH1SSandH2SSarelesshan0.5%at1400℃and0.45％at1350℃。

简介：Someoftheprogressmadeinourlaboratoriesincollaborationwithindustryinresearchanddevelopmentworkonhighperformanceoxide-nonoxidecompositesformetallurgicalapplicationshasbeenreviewed.(1)SiAlONbondedcorundumcompositesforblastfurnaceusagehavebeenproducedbyreduction-nitridationsinteringathightemperature,usingbauxiteinsteadofaluminainthematrix.(2)LowcarbonAl2O3-SiAlONslideplatematerialssuccessfullyusedinhighqualitysteelcontinuouscastinghavebeendevelopedinwhichmostorallofthegraphiteinAl2O3-Cbrickisreplacedbybauxite-basedβ-SiAlON.(3)Al/SimetalbondedAl2O3-Cmaterialcharacterizedbylowcarboncontent,lowfiringtemperatureandin-situformationofcarbidesandnitridesathightemperatureduringservicearefoundtopossessveryhighhotstrengthandverygoodthermalshockresistanceandhavealsobeensuccessfullyusedasslideplatesinladlesandtundishesforhighqualitysteelcasting.

简介：Thecastablesforladlenozzleweredevelopedusingbrowncorundumasthemainrawmaterialandtherightamountsofcomplexadditives.Theinfluenceofseveraladditivesonthepropertiessuchasstrengthandpermanentlinearchangeofthesampleswasstudied.Theresultsshowedthatapplyingcomplexadditivesimprovedthestrengthandthevolumestabilityofthecastablesgreatly.Thecampaignofthecastablesforladlenozzlehasincreasedfromabout40heatsto70heats.