Corundum

ProductIntroduction  Thecorundumisusedforrefractoryorabrasivematerial,withthehardnesssecondonlytothatofdiamond.Itscrystalisbarrel-shaped,column-shaped,plate-shaped,etc.,withameltingpointof2,050°C.Corundumclassification:Naturalcorundum(naturalcorundumisusuallyblueandyellow,andthetransparentandbrightlycolorediscalledthegem;thosecontainingtracechromiumandwithredcoloriscalledruby,andthosecontainingtracetitaniumandwithbluecoloriscalledsapphire);artificialcorundum(fusedcorundumandsinteredcorundum). Chemicalcomposition Chemicalcompositionofbrowncorundum:Al2O3SiO2TiO2Fe2O3CaOMgOK2ONa2O95%1.5%2.5%0.25%0.1%0.1%0.1%0.05%B.D 3.95-4.1g/cm3 Granularity:  Itiscustomizedasrequiredbythebuyer,anditscommonspecificationsinclude0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,200meshes,325meshes,etc.

Silicon Carbide

Productintroduction:  Siliconcarbide(SiC)issmeltedfromthequartzsand,petroleumcoke(orcoke),sawdust(addingsalttoproducegreensiliconcarbide)andotherrawmaterialsinaresistancefurnaceathightemperature.Itisoneofthemostwidelyusedandeconomicalnon-oxidehigh-techrefractorymaterialssuchasC,NandB,andcanbecalledthecorundumorrefractorysand.Atpresent,thesiliconcarbideproducedinChinaisclassifiedintotheblacksiliconcarbideandgreensiliconcarbide,bothofwhicharehexagonalcrystals.Inaddition,thesiliconcarbideismainlyusedforabrasiveandrefractoryresistanceheatingelements. Chemicalcomposition: Compositionof Siliconcarbide:SiCDensityMohshardnessCoefficientoflinearexpansionThermalconductivitycompressivestrength90-98%3.17-3.47g/cm39.25.0*10-6/℃58W/m.K1029MPa Granularity:  Itiscustomizedasrequiredbythebuyer,anditscommonspecificationsinclude0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,200meshes etc.Applicationfield:  Siliconcarbidehasfourmainapplications:functionalceramics,advancedrefractories,abrasivesandmetallurgicalrawmaterials.。

Lightweight Aggregate

ProductIntroduction  Theflintclayorclay,usedasthemainingredient,islevigatedandaddedwithfoamingagent,andisthenmixed,formed,dried,calcined,crushedandscreened,toproducealightmaterial,whichismainlyusedasathermalinsulationmaterialforindustrialkilns. Physicalandchemicalindicators:   Al2O3:37-55%;bulkdensity:0.7-1.2g/cm3.

Mullite

ProductIntroduction  Mulliteisamineralgeneratedbyaluminosilicateathightemperature,anditcanbeformedwhenthealuminosilicateisheatedmanually.Thenaturalmullitecrystalisslenderneedle-likeandhasaradioactiveclustershape;themulliteoreisusedtoproducehigh-temperaturerefractories,withameltingpointof1,870°C.Besides,themulliteisalsoahigh-qualityrefractorymaterial,featuringtheuniformexpansion,excellentthermalshockresistance,highsofteningpointunderafixedload,smallcreepvalueathightemperature,highhardnessandsuperiorresistancetochemicalcorrosion,anditcurrentlyincludesthehigh-purityfusedmullite,ordinaryfusedmullite,sinteredmullitefromall-naturalbauxiteconcentrateandlight-burningmullite.ThemulliteproductsincludeRM47,RM60andRM70.  Chemicalindicators ①CompositionofRM47mullite:Al2O3SiO2TiO2Fe2O3CaOMgOK2ONa2O45-48%48-52%2.2%0.8%0.1%0.1%0.1%0.05%B.D 2.6g/cm3 ②CompositionofmulliteRM60:Al2O3SiO2TiO2Fe2O3CaOMgOK2ONa2O59-63%33-37%2.2%1.3%0.1%0.1%0.1%0.05%B.D 2.75g/cm3 ③CompositionofflintclayRM70:Al2O3SiO2TiO2Fe2O3CaOMgOK2O Na2O69-73%23-37%2.5%1.3%0.1%0.1%0.1%0.05%B.D 2.85g/cm3 Granularity:  Itiscustomizedasrequiredbythebuyer,anditscommonspecificationsinclude0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,200meshes etc.

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