简介：Nanotechnologyisoneofthemostimportanthightechinthe21stcentury.Theapplicationofnanotechnologytorefractoryindustryisfruitful.Ithascreatedmanyadvancedproducts,andproducedalargeamountofpatents.Inthispaper,weanalyzethenanotechnologyinrefractorypatentapplicationstofindoutthetechnologydevelopmenttrends.Itwillhelpthedomesticenterprisestolearnthestateofglobalpatentapplicationsinrefractoryindustry,promotetheirtechnologies,andcreatebetterproducts.

简介：BauxitefromQingzheniscalcinedforrefractoriesapplications.Threefuelsourceswithdifferentamountsofresidualashandferricoxidewereusedforbauxitecalcinationinarotarykiln.Itisfoundthequality,includingthecontentofferricoxide,bulkdensity,apparentporosityandwaterabsorption,ofthebauxiteishighlyinfluencedbythefuelsourceofrotarykiln.Inessence,theeffectoffuelonthequalityofbauxiteisattributedtotheamountofferricoxideintroducedbythefuel.Introductionofamodestquantityofferricoxideisbeneficialforpromotingthedensificationofbauxite.

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

简介：Acolloidalsilicasolbondedproductrangeisintroducedbyanexampletargetinghightemperatureapplicationsinsteelmaking.Placementandsettingcharacteristicsareshown.Thethermalmechanicalpropertiesandresultingadvantagesarepresentedaswellastheperformanceenhancementincorrosionresistance.PropertiesarecomparedtoacommonULCCproduct.Resultsoftheindustrialtrialphasearediscussed.

简介：Inthepresentstudythefabricationofgradedcoarsegrainedceramicbodiesforrefractoryapplicationswasinvestigatedusingapressurefiltrationcell,whichusespressurizedairasthepressuremedium.Thepressurefiltrationcellwasusedtoexaminetheinfluenceofdifferentceramicrawmaterials,twodispersants,andoftheparticlesizedistributiononthefiltrationbehaviorandonthefiltercakesurfacequality.Pressureslipcastingofspinelbasedslipsresultedincrack-freefiltercakes,whilealuminabasedslipsresultedinfiltercakes,whichalwaysstuckontheusedPMMAfiltermedium.Furthermore,citricacidasanelectrostaticdispersantresultedinamuchlowerfiltrationcakeresistanceandhenceshorterfiltrationtimesthananelectrostericdispersant.Abroaderparticlesizedistributionwithahigheradditionofthefinestparticlefractioncausedanincreaseinthefiltercakeresistancebutalsoyieldedmuchbettersurfacequalities.Finally,gradedfiltercakeswiththreelayersofaluminarichmagnesiumaluminatespinelwithamaximumgrainsizeof3mm,1mm,and0.5mm,respectively,werefabricated.ThecomputedX-rayanalyzesindicatedaperfectbondingbetweenthethreelayers,whichisasignificantimprovementtopreviousstudies.However,thegradedfiltercakesexhibitedfrequentlycracksatthebottom,whichwasprobablycausedbytensilestressesfromthefrictionofthefiltercakeswiththepressurefiltrationcell.Thiswillbefurtherinvestigatedinsubsequentstudies.Theachievedresultsdemonstratethefeasibilitytoproducecoarsegrainedoxideceramicsforrefractoryapplicationsbypressureslipcasting,whicheventuallyallowstheproductionofcompositeswithtailoredcompositions,microstructureandfunctionality.

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

简介：ThecombinationofSiCandandalusitewithcalciumaluminatebinderforcastablesinhighcorrosivegasifyingenvironmentsisapromisingalternativerefractorysystemformanydifferentslagsystems.Aftersintering,aglassyprotectivelayerhasbeenidentified.Besidetheinteractionsoftherefractorieswithintermediateslagalsothethermomechanicalproperties,thethermalshockperformanceandthemicrostructurehavebeenevaluatedasafunctionofdifferentbindersystems.

简介：BasedontheanalysesoftheliningtechnologiesofthehotpressformedcarbonbrickiuU.S.A.,ofthece-ramiccupinFranceandofthecreativeself-bakingcar-bonbrickinChina,thetechnologyofsemi-graphitizedcar-bonblock-ceramicbrickworkhasbeenstudiedanddeveloped,andhassuccessfullybenusedinNo.7blastfurnace(2580m^3)atAnshanIromandSteelCompanyandinNo.3blastfurnace(1200m^3)atTaiyuanIronandSteelCompany,Thispaperputsfourwardafeasibleschemeforrealizationoflongservicelivesofthebootmsandthehearthsoflarge-sizedblastfuracesinChina.