简介：NationalQualitySupervision&InspectionCenterforRefractories(NRQS)wassetupin1986andwasauthorizedin1990byStateBureauofQualityandTechnicalSupervision(SBQTS)asthestatesupervision&inspectioncenter(CertificateSBQTSNo.101).In1993,NRQSwasgrantedImport&ExportAuthorizedLaboratoryfornationalrefractoriesbytheStateAdministrationforEntryExitInspectionandQuarantine(CertificateNo.5302).In1995,NRQSwasgrantedthe

简介：NationalQualitySupervision&InspectionCenterforRefractories(NRQS)wassetupin1986andwasauthorizedin1990byStateBureauofQualityandTechnicalSupervision(SBQTS)asthestatesupervision&inspectioncenter(CertificateSBQTSNo.101).In1993,NRQSwasgrantedImport&ExportAuthorizedLaboratoryfornationalrefractoriesbytheStateAdministrationforEntryExitInspectionandQuarantine(CertificateNo.5302).In1995,NRQSwasgrantedthenationaltestingorganizationbyStateCommitteeofScience&Technology

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

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简介：JC/T616-20031ScopeThisstandardspecifiestheclassification,technicalrequirements,testmethod,inspectionrules,marking,packing,transportation,storageandqualitycertificationofhighqualitysilicabricksforglassmeltingfurnace.Thisstandardisapplicabletothepressedhighqualitysilicabrickswithunitweight≥40kgforglassmeltingfurnace.

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.

简介：Thispaperdescribesdevelopmentsofhighqualitymagnesite-chromebricksusedforsecondarysteelmakingfurnaces,mainlyincludingdirect-bond-edmagnesite-chromebrick,fullysynthesized(co-clinker)magnesite-chromebrick,semi-rebondedmagnesite-chromebrickandfusedgrainrebondedmagnesite-chroebrick,Investigationshavealsobeenconductedontheeffectsofvariouschromitesonthepropertiesofthedirectbondedmagnesite-chromebrick,effectsofdifferentsesquioxides(CrO3,Al3O3,Fe2O3)onthepropertiesofthefullysynthe-sized(co-clinker)magnesite-hromebrickandef-fectsofZrO2,Cr-Fealloy,ultra-finepowdersonthepropertiesofthefusedgrainrebondedbrickandthesemi-rebondedmagnesite-chromebrick,Applica-tionsofthebricksinvarioussecondarysteelmakingfurnaceshavebeenbrieflyintroducedaswell.

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