Particle loj faib
Particle loj tis yog hais txog qhov kev faib ua feem (qhia hauv feem pua ​​​​cov ntsiab lus) ntawm cov khoom nyob rau hauv ntuj kaolin nyob rau hauv ib tug muab ntau yam sib txawv particle qhov ntau thiab tsawg (qhia nyob rau hauv mesh loj ntawm millimeters los yog micrometers).Lub particle loj faib cov yam ntxwv ntawm kaolin yog qhov tseem ceeb heev rau kev xaiv thiab kev siv cov ore.Nws qhov loj me muaj qhov cuam tshuam loj rau nws cov yas, av nkos viscosity, ion pauv peev xwm, kev ua haujlwm molding, kev ua kom qhuav, thiab kev ua haujlwm sintering.Kaolin ore xav tau kev ua haujlwm, thiab seb nws puas yooj yim rau kev ua kom zoo zoo tau dhau los ua ib qho ntawm cov qauv rau kev ntsuas ore zoo.Txhua lub tuam tsev lag luam muaj qhov tshwj xeeb me me thiab kev ua kom zoo rau kev siv sib txawv ntawm kaolin.Yog tias Tebchaws Meskas xav kom cov kaolin siv los ua cov txheej txheej kom tsawg dua 2 μ Cov ntsiab lus ntawm m suav txog 90-95%, thiab cov ntaub ntawv ua cov ntaub ntawv tsawg dua 2 μ Qhov feem ntawm m yog 78-80%.

Plasticity
Cov av nplaum tsim los ntawm kev sib xyaw ntawm kaolin thiab dej tuaj yeem deform raws li sab nraud quab yuam, thiab tom qab lub zog sab nraud raug tshem tawm, nws tseem tuaj yeem tuav cov khoom deformation no, uas yog hu ua plasticity.Plasticity yog lub hauv paus ntawm kev tsim cov txheej txheem ntawm kaolin nyob rau hauv ceramic lub cev, thiab nws kuj yog lub ntsiab lus qhia ntawm cov txheej txheem.Feem ntau, plasticity index thiab plasticity index yog siv los sawv cev qhov loj ntawm plasticity.Lub plasticity Performance index hais txog cov kua txwv cov dej noo ntawm kaolin av nplaum cov ntaub ntawv tshem tawm cov yas txwv cov dej noo, qhia raws li feem pua, piv txwv li W plasticity index = 100 (W kua txwv - W plasticity txwv).Lub plasticity Performance index sawv cev rau qhov formability ntawm kaolin av nplaum khoom.Lub load thiab deformation ntawm cov av nplaum pob thaum lub sij hawm compression thiab crushing tuaj yeem ntsuas ncaj qha siv lub ntsuas yas, qhia hauv kg · cm.Feem ntau, qhov siab dua cov plasticity index, qhov zoo dua nws formability.Lub plasticity ntawm kaolin tuaj yeem muab faib ua plaub theem.

Plasticity zog Plasticity index Plasticity index
Muaj zog plasticity> 153.6
Medium plasticity 7-152.5-3.6
Plasticity tsis muaj zog 1-7<2.5<br /> Tsis yog plasticity<1<br /> Associativity

Bindability yog hais txog lub peev xwm ntawm kaolin los ua ke nrog cov ntaub ntawv tsis yog yas los tsim cov av nplaum yas thiab muaj qee qhov ziab kom qhuav.Kev txiav txim siab ntawm kev sib khi muaj peev xwm suav nrog kev ntxiv cov qauv quartz xuab zeb (nrog rau qhov loj ntawm 0.25-0.15 particle loj feem accounting rau 70% thiab 0.15-0.09mm particle loj feem accounting rau 30%) rau kaolin.Cov ntsiab lus xuab zeb siab tshaj plaws thaum nws tseem tuaj yeem tuav lub pob yas av nplaum thiab lub zog flexural tom qab ziab yog siv los txiav txim siab nws qhov siab.Cov xuab zeb ntau ntxiv, qhov muaj zog ntawm kev sib txuas ntawm cov av kaolin no.Feem ntau, kaolin uas muaj zog plasticity kuj muaj zog binding muaj peev xwm.

Kev ua kom qhuav
Kev ua kom qhuav yog hais txog kev ua haujlwm ntawm kaolin av nkos thaum lub sijhawm ziab.Qhov no suav nrog drying shrinkage, drying zog, thiab ziab rhiab heev.

Drying shrinkage yog hais txog qhov shrinkage ntawm kaolin av nplaum tom qab lub cev qhuav dej thiab ziab.Kaolin av nplaum feem ntau ua rau lub cev qhuav dej thiab ziab ntawm qhov kub ntawm 40-60 ℃ mus rau tsis tshaj 110 ℃.Raws li kev tso dej tawm, qhov kev ncua deb yog luv, thiab qhov ntev thiab ntim ntawm cov qauv yuav raug shrinkage.Qhuav shrinkage yog muab faib ua linear shrinkage thiab volumetric shrinkage, qhia raws li feem pua ​​ntawm cov kev hloov nyob rau hauv ntev thiab ntim ntawm kaolin av nkos tom qab ziab mus tas li qhov hnyav.Kev ziab kom qhuav ntawm kaolin feem ntau yog 3-10%.Qhov loj dua qhov me me, qhov loj ntawm qhov chaw tshwj xeeb, qhov zoo dua cov yas, thiab ntau dua qhov ziab kom qhuav.Lub shrinkage ntawm tib hom kaolin txawv nyob ntawm seb tus nqi ntawm cov dej ntxiv.

Ceramics tsis tsuas yog muaj cov kev cai nruj rau cov yas, adhesion, ziab shrinkage, ziab lub zog, sintering shrinkage, sintering zog, hluav taws kub, thiab tom qab firing whiteness ntawm kaolin, tab sis kuj muaj cov tshuaj muaj zog, tshwj xeeb tshaj yog muaj cov chromogenic ntsiab xws li hlau, titanium, tooj liab, chromium, thiab manganese, uas txo cov tom qab firing whiteness thiab tsim me ntsis.