简介：Densechromiumsesquioxiderefractorieshavewidelybeenusedinthekilnsformakingalkai-freeandanti-alkaliglassfibersduetotheirexcellentre-sistancetomoltenglasses.Densificationsofchromiumsesquioxideduringsinteringcanbeblockedbyevaporationofchromiumtrioxidederivedfromoxidationathightemperature,Inthispaperthemech-anismofsinteringchromiumoxideandtheprocess-ingtechniqueformakingdensechromiumsesquiox-iderefractoriesarediscussed.Aprocessinlaboratoryscaleformakingdensechromiumsesquioxidebricksisdemonstrated.

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：Akindofdryrefractorysealingmaterialhasbeendevelopedtorepairthefinecracksincokeovenchamber.Withsilicasandasthemainrawmaterial,thesealingmaterialisblownintocokeovenchamberbycompressedairwhilebeingapplied,andbondedtobricksurfaceorfilledinfinecracksofchamberunderrightpressure.Thephysicalpropertiesofthematerialaresimilartothoseofsilicabricksduringitsapplication.Soitcanbeadaptedtoconditionsofcokeovenandhasgoodservicelife.Thestudyandapplicationresultsofthesealingmaterialaredescribedinthispaper.

简介：Researchonnewtypesofcastables,pre-castassemblypartsandthermalinsulationmaterialswithgoodresistancetowear,thermalshockanderosion,andlowthermalconductivity,wasdonetosolveproblemsofhighsystemenergyconsumption,crackingandspallingofpartialliningandmismatchoffurnacetopmaterialandhangingmaterialandsoon,causedbyunreasonabledesignofChina'sAl(OH)3dilutephasefluidizedbedroastingfurnacelining.Severaldifficultproblemssuchasthematchingofdifferentmaterials,preservationofexpansionjointsamongdifferentzonesandreasonablemechanicaldistributionofliningweresolved.'Integratedfurnace'conceptwasestablishedincludingrefractoriesR&D,liningstructuredesign,constructionoptimization,furnacewarmingtechnology,initialoperationandliningmaintenancetechnology.Thekeytechnologiesofhigh-efficiencyandenergy-savingforfurnacesweredeveloped.TheseachievementshavebeenappliedtoChina'sAl(OH)3dilutephasefluidizedbedroastingfurnacestoreduceenergyconsumptionby1000MJpertonalumina,enhancethecapacityandreducetheexhaustgasemission.

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：Conceptofblackbox,conditionofmodelingandcontrolmethodswereintroduced.Takinghighpuritysilicabrickasanexample,thesilicabrickfeaturedwithhighpurity,lowporosity,lowtruedensityandhighstrengthwasdevelopedthroughproblemanalysis,testdesign,modelingandoptimization.Usinginformationtechnologytoupgraderefractoriesindustrywasdiscussed.

简介：Thecastablesforladlenozzleweredevelopedusingbrowncorundumasthemainrawmaterialandtherightamountsofcomplexadditives.Theinfluenceofseveraladditivesonthepropertiessuchasstrengthandpermanentlinearchangeofthesampleswasstudied.Theresultsshowedthatapplyingcomplexadditivesimprovedthestrengthandthevolumestabilityofthecastablesgreatly.Thecampaignofthecastablesforladlenozzlehasincreasedfromabout40heatsto70heats.

简介：Thedevelopmentstatus,productiontechnologyandcharacteristicsofMgO-CaOrefractoriesareintroduced,coveringMgO-CaOclinkers,firedMgO-CaObricksandunburnedMgO-CaO-Cbricks.TheapplicationsofMgO-CaOrefractoriesinsecondaryrefiningfurnacesincludingAOD,VOD,LF-VDandGORareintroduced.

简介：Inthispaper,Yangquanbauxitebasedonmineralseperationareinvestigated.Itisfoundthattheglassphasewillbedecreasedandthehightemperaturemechanicalpropertiedswillbeimproved.

简介：SeveralkindsofslidenozzleplatesuchasAl2O3-C-ZrO2,MgO,Al2O3,Spinel-CandAl2O3-CSNplateforhighoxygensteelusedinBaoSteelhavebeenanalysed,theappearanceandsizeoftheSNplateafterusinghavebeenmeasured.TheAl2O3-CSNplatehaslongerservicelifeincastinghighoxygensteel,andthewearmechanismofdifferentSNplatesisdiscussed.

简介：Focusingonhighenergyconsumptionofrefractories,ourresearchworksaboutmonolithicrefractorieswereintroduced,suchasbauxite-basedcorundum,microporouslight-weightbauxite-basedclinker,light-weightalumina-richspinel,magnesiamicropowder,fast-dryingrefractorycastablesofblastfurnace,largearealong-lifefast-sinteringflingrefractoriesforconverter,high-strengthlight-weightmullitecastablesforladlepermanentliner,high-strengthandlow-conductivityforsterite-vermiculiteinsulatingboard,basicshotcretingcastablesforladlepermanentliner,magnesiacalciagunningmixforRHrefiningfurnace,andlight-weightcastablesinpetrochemicalindustry.

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简介：OnthebaseofMgO-CaOcoatingmaterialTD-CA12fortundish,anewTD-CA32withhighCaOcontentwasdeveloped,ItsCaOcontentis30%-36%andMgOcontentis45%-55%,TheapplicationresultinBaosteelshowsthatTD-CA32notonlyhasthesamepropertiesasTD-CA12butalaohastheimprovedpropertiesofdisintegrationandsteelpurifing.

简介：Theprinciplesandfeaturesofmicrowavesintering,theapplicationinrefractoriesandsynthesismethodsofZrB2arereviewed.ThesynthesisresultsofZrB2bythermitdeoxidatemethodshowthatproductionpriceofZrB2canbeeffectivelyloweredthroughmicrowavesynthesis.ItwillexpandtheapplicationofZrB2inrefractories.

简介：Mineralizingmechanismofthreemineralizersindrysynthesizingofcordieriteintalc-clay-ommercialaluminasystemhasbeeninvestigated.Cordieitegrogcontaining95%cordieritephasehasbeensynthesizedbythistechnique,Thesynthesizedcordieritehaswell-developedcordieritecrystalswithnetworkstructure,its,thermalexpansioncoefficientα=2.4×10^－6／℃(20℃-1000℃），Andcordierite-mullitedeckwithhighperfomancehasbeendevelopedbyusingtherawcordieriteco-grindingpowderasthematrixandhight-grademullitegrogastheaggregate.

简介：Thispaperintroducesofthedevelopmentandapplica-tionofheavilyburnedmullitedbrickwithhighreractorinessunderloadlowcreep,whichismadeofandalusiefineandcoarsegrains(asaggregate),highaluminabauxiteproducedinYangquancounty,clayproducedinGuangxiprovine,industrialaluminapowderandsilliman-itepowder(asmatrixmaterial)andalittleamountofad-ditivesandbondedwithsyntheticbond.

简介：Thepaperdescribestheprocessofproducinghighqualitymagnesite-chromebricksforVODre-finingfurnace,Theservicelifereaches14heats,averagelife12heats.Thestudiesshowthatthewearofthemagnesity-chromebricksismainlyduetochemicalcorrosion,thermalspallinginducedbythermalshockandthecorrosionarousedfromaccumulationofmoltenmaterialsintransitionzone.

简介：Thepaperdescribesthereactionbetweencar-bon-containingrefractories,magnesia-chromere-fractoriesandmatte,converterslag.Theresultsshowthatcarbon-containingrefractorieshavegoodresistancetomatteandconverterslaginnitrogenat-mosphere,Thepracticalresultsareunsuitableforconverter,highperformacemagnesiachromere-fractoriesarepromisingmaterials.Newlydevel-opedhighqualitydirectbondingmagnesiachrome,rebondedco-clinkermagnesiachrome,semi-rebondedmagnesiachrome,fusedcastmagnesiachromeusedinsmeltingfurancesareintroducedbriefly.

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