Analysis of 8 common processes of black core defects in ceramic bodies | Goway Sharing
Goway professionalproduction Bodyreinforcement Andceramicpowdermodifiers,weoftenencountercustomerswhohaveblack-heartedquestionsandaskaboutimprovementmethods.NowIwillanalyzetheinfluenceofeachprocessonblack-heartedness.TheinfluenceofeachprocessontheblackheartRawmaterialIntheactualproductionprocess,especiallyonce-firedwhitebilletproducts,specialcontroloforganicmatterandironcontentisrequired.Forexample,theorganicmatterinmudrawmaterials,thecoalcontentintalc,andeventhequalityofsodiumrotwillhaveanadverseeffectontheproduct.Atpresent,correspondingequipmenthasappearedintheindustry,whichcanremovebranchesandleavesinthematerialbeforetherawmaterialsareaddedtotheballmill,butforhumus,thereisstillnoway.Theimpactcanonlybereducedbycontrollingitsdosage.SuchastheblacktalcinJiangxi,theblackinsideisassociatedwithcoal-likesubstances.Oncetheamountishigh,blackheartsarepronetoappear.However,low-sodiumhumateisproducedfromlow-qualityligniteandlow-sodium,sotheorganiccarbonchainlengthisrelativelyhigh,andwhentheamountislarge,problemsarerelativelyeasytooccur.BodymoistureTheeffectofbodymoistureontheblackcoreismainlyusedwhenthemoistureinthebodyishigh,whichwillresultinfewerporechannelsinthebody.Duringfiring,theexhaustchannelislackingwhentheorganicmatterisburned,anditiseasytocauseorganicmatter.Combustiongasisnoteasytoescape.Thisimpactisanindirectimpact.Duringtherainyseasoninthesouth,thebodycolorshouldberelativelydark.ThesubdivisioncontentinthegreenbodyistoohighInthegreenbody,ifthecontentoffinepowderistoohigh,itwilleasilyblocktheexhaustofthecombustiongas,resultinginablackcorephenomenon.AddotherpollutantstothepowderDuringtheproductionprocess,specialattentionshouldbepaidtoaccidentalentryofpollutants.Suchastheimpactofcarbonparticlescausedbyincompletecombustionduringspraydrying,equipmentleakageandoildripping,andthebeltwearandtearintothegreenbody.Thesesituations,iftheyoccur,generallyappearinindividualproductsratherthanonalargescale.MoldingpressureIfthemoldingpressureistoohigh,thesurfaceofthegreenbodywillbedensified,sothatthecombustiongasinthegreenbodycannotescape,andtheblackcorephenomenonwillalsoappear.Similarly,iftheshapeofthemoldismorecomplex,themoldingpressureofeachareaoftheproductisinconsistent,resultingininconsistentdensitiesineacharea,andblackcorephenomenonmayalsooccur.BricktypethickIfthebrickistoothick,itwillalsocausedifficultyingasremoval,resultinginreductionreactionsandblackhearts.LowglazemeltingtemperatureTheglazehasalowinitialmeltingtemperatureorcontainslow-temperaturefrit.Atalowerfiringtemperature,theglazewillcoverthesurfaceofthebody,makingitdifficulttoexhaustthebody.Itmaycauseblackheartsandevenbubbling.FiringstageAgoodfiringsystemcanwellrestraintheappearanceofblackhearts.However,iftheoxidationisinsufficient,thefiringtimeistooshort,etc.,whichmaycauseblackhearts.Afterall,duetothelackofmud,manufacturersmaydeliberatelyintroduceorganicmatterinordertoincreasethestrengthofthegreenblanks.Ifthefiringsystemisnotarranged,theprobabilityofblackheartswillbegreatlyincreased.Generallyspeaking,controltheorganiccontentandironcontentoftherawmaterials,theintroduced bodyenhancer payattentiontocontrolthecarbonchainlength,ensuretheairpermeabilityinthebody,arrangeagoodfiringsystem,andpayattentiontotheproductionenvironment.Goodtopreventblackhearts.
2023-04-18