Green silicon carbide grain sand
OverviewofGreenSiliconCarbide:Siliconcarbide(SiC)ismadeofquartzsand,petroleumcoke(orcoalcoke),sawdust,andaddedsaltasadditivesthroughhightemperaturesmeltinginaresistancefurnace.Thecrystalhashighpurityandhardness,anditshardnessisbetweencorundumandcorundum.Amongdiamonds,themechanicalstrengthishigherthanthatofcorundum.Ithasstablechemicalproperties,highthermalconductivity,lowthermalexpansioncoefficient,andgoodwearresistance.Inadditiontobeingusedasabrasives,ithashightemperatureresistanceandthermalconductivityandhasbecomeoneofthefirstchoicekilnfurniturematerialsfortunnelkilnsorshuttlekilns.MainSpecifications:NameproductSpecificationmodelExteriorcolorpurity(%)iron(%)carbon(%)Greensiliconcarbide(Fsand)F8#—F240#Puregreen≥99≤0.02≤0.01Greensiliconcarbide(Psand)P8#--P240#Puregreen≥99≤0.02≤0.01Otherindicatorsandspecifications,customizedservicescanbeprovidedaccordingtouserrequirementsTwocategoriesofproducts:greensiliconcarbideparticlesizesandandgreensiliconcarbidepowder:Theproductionstandardsforgreensiliconcarbidegranularsandare:Nationalstandard(F):F7#,F8#,F10#,F12#,F14#,F16#,F20#,F22#,F24#,F30#,F36#,F40#,F46#,F54#,F60#,F70#,F80#,F90#,F100#,F120#,F150#,F180#,F220#,F240#,F280#,F320#.Theproductionstandardsforgreensiliconcarbidepowderare:Theoriginalnationalstandards(W):W63#,W50#,W40#,W28#,W20#,W14#,W10#,W7#,W5#,W3.5#,W2.5#,W1.5#.JapaneseStandard(JIS):JIS240#,JIS280#,JIS320#,JIS360#,JIS400#,JIS500#,JIS600#,JIS700#,JIS800#,JIS1000#,JIS1200#,JIS1500#,JIS2000#,JIS2500#,JIS3000#,JIS4000#,JIS6000#,JIS8000#,JIS10000#.Nationalstandards(F):F230#,F240#,F280#,F320#,F360#,F400#,F500#,F600#,F800#,F1000#,F1200#,F1500#,F2000#.Greensiliconcarbideiswidelyused:Theapplicationrangeofgreensiliconcarbidepowderisbecomingwiderandwider,andthedemandisfurtherincreasing.Ourcompanyhasadopteddry,wet,anddry-wetmethodstoproducesiliconcarbidepowdertomeetthedifferentneedsofdifferentproducts.Productsaremainlyusedforabrasives,electronicproductgrinding,specialceramics,coatingplasticmodification,autoparts,militaryaviation,refractoryproductsmanufacturing,foamceramicindustry,solarsiliconplatecutting,crystalcuttingandgrinding,originalautomobileenginepartsManufacturing,desulfurization,powersupply,environmentalprotectionindustries,etc.
Black silicon carbide grain sand
Overviewofblacksiliconcarbidegranularsand:Blacksiliconcarbideismadeofquartzsand,petroleumcokeandhigh-qualitysilicaasthemainrawmaterials,andissmeltedathightemperatureinaresistancefurnace.Itshardnessisbetweencorundumanddiamond,mechanicalstrengthishigherthancorundum,anditisbrittleandsharp.MainSpecifications:NameproductSpecificationmodelExteriorcolorpurity(%)iron(%)carbon(%)Blacksiliconcarbide(Fsand)F16#—F240#pureblack≥98.5≤0.02≤0.01Blacksiliconcarbide(Psand)P16#--P240#纯黑色≥98.5≤0.02≤0.01Otherindicatorsandspecifications,customizedservicescanbeprovidedaccordingtouserrequirementsIndustrialclassificationofblackandgreensiliconcarbide:Theindustrialproductionmethodofsiliconcarbideistousehigh-qualityquartzsandandpetroleumcoke(saltisneededtoproducegreensiliconcarbide)inaresistancefurnace.Therefinedsiliconcarbideblocksarecrushed,washedwithacidandalkali,magneticseparation,sievingorwaterselectiontoproduceproductsofvariousparticlesizes.Therearetwobasicvarietiesofsiliconcarbide,blacksiliconcarbideandgreensiliconcarbide,bothofwhichbelongtoα-SiC.①Blacksiliconcarbidecontainsabout98.5%ofSiC,anditstoughnessishigherthanthatofgreensiliconcarbide.Itismostlyusedtoprocessmaterialswithlowtensilestrength,suchasglass,ceramics,stone,refractorymaterials,castironandnon-ferrousmetals.②Greensiliconcarbidecontainsmorethan99%SiCandhasgoodself-sharpeningproperties.Itismostlyusedforprocessinghardalloys,titaniumalloysandopticalglass,aswellasforhoningcylinderlinersandfinegrindinghigh-speedsteeltools.Inaddition,thereiscubicsiliconcarbide,whichisayellow-greencrystalpreparedbyaspecialprocess.Theabrasivetoolusedtomakeissuitableforsuper-finishingofbearings.ThesurfaceroughnesscanbeprocessedfromRa32～0.16micronstoRa0.04～0.02microns.Mainusesofblacksiliconcarbide:Duetoitsstablechemicalproperties,highthermalconductivity,lowthermalexpansioncoefficient,andgoodwearresistance,siliconcarbidehasmanyotherusesbesidesbeingusedasabrasives.Forexample,siliconcarbidepowderisappliedtotheimpellerorcylinderofawaterturbinebyaspecialprocess.Theinnerwallcanimproveitsabrasionresistanceandprolongitsservicelifeby1to2times;thehigh-graderefractorymaterialmadeofithasheatshockresistance,smallsize,lightweight,highstrengthandgoodenergy-savingeffect.Low-gradesiliconcarbide(containingabout85%ofSiC)isanexcellentdeoxidizer.Itcanspeedupthesteelmakingspeed,andfacilitatethecontrolofchemicalcompositionandimprovethequalityofsteel.Inaddition,siliconcarbideisalsowidelyusedtomakesiliconcarbiderodsforelectricheatingelements.Siliconcarbidehashighhardnessandexcellentthermalconductivity.Itisasemiconductorandcanresistoxidationathightemperatures.
