Particle size distribution
Particle size distribution inoreva chikamu (chinotaridzwa muchikamu chemukati) chezvikamu zviri mu kaolin yechisikigo mukati mechikamu chakapihwa chekukura kwakasiyana kwakasiyana (kunoratidzwa mumambure saizi yemamirimita kana mamicrometer).Iyo particle size yekugovera maitiro e kaolin akakosha zvikuru pakusarudzika uye maitiro ekushandiswa kweores.Saizi yaro yechikamu ine mhedzisiro yakakosha papurasitiki yayo, madhaka viscosity, ion shanduko yekuchinjana, kuita kwekuumba, kuomesa kuita, uye kuita sintering.Kaolin ore inoda kugadzirwa kwehunyanzvi, uye kana iri nyore kugadzirisa kune inodiwa fineness yave imwe yezviyero zvekuongorora ore mhando.Dhipatimendi rega rega remaindasitiri rine saizi chaiyo uye nyoro zvinodiwa zvekushandisa kwakasiyana kwekaolin.Kana United States ichida kuti kaolin ishandiswe sechifukidzo kuti ive isingasviki 2 μ Zvinyorwa zvem zvinokwana 90-95%, uye mapepa ekugadzira mapepa ari pasi pe2 μ Chikamu chem 78-80%.

Plasticity
Ivhu rinoumbwa nekubatanidzwa kwekaolin nemvura rinogona kukanganisa pasi pesimba rekunze, uye mushure mokunge simba rekunze rabviswa, rinogona kuchengetedza iyi deformation property, iyo inonzi plasticity.Plasticity ndiyo hwaro hwekuumbwa kwekaolin mumiviri yeceramic, uye zvakare ndiyo huru yehunyanzvi chiratidzo chekuita.Kazhinji, plasticity index uye plasticity index inoshandiswa kumiririra saizi yepurasitiki.Indekisi yepurasitiki inoreva mvura inogumira mwando wevhu rekaolin kotora muganho wepurasitiki unyoro hwehuwandu, hunoratidzwa sechikamu, kureva W plasticity index=100 (W liquid limit - W plasticity limit).Indekisi yepurasitiki inomiririra kuumbwa kwekaolin ivhu zvinhu.Kuremerwa uye deformation yebhora revhu panguva yekumanikidza uye kupwanya kunogona kuyerwa zvakananga uchishandisa mita yepurasitiki, inoratidzwa mu kg · cm.Kazhinji, iyo yakakwirira yeplasticity index, zviri nani kuumbwa kwayo.Iyo plastiki yekaolin inogona kukamurwa kuita nhanho ina.

Plasticity simba Plasticity index Plastiki index
Yakasimba plastiki> 153.6
Medium plasticity 7-152.5-3.6
Plasticity isina simba 1-7<2.5<br /> Kwete plastiki<1<br /> Kushamwaridzana

Kusungirirana (Bindability) zvinoreva kugona kwekaolin kusanganiswa nezvinhu zvisiri zvepurasitiki kugadzira mavhu epurasitiki uye kuve nekuoma kwekuomesa.Kutemerwa kwekugona kusunga kunosanganisira kuwedzera chiyero chejecha requartz (rine uwandu hwakaumbwa hwe 0.25-0.15 particle size fraction accounting for 70% uye 0.15-0.09mm particle size fraction accounting for 30%) kune kaolin.Iyo yakakwira jecha yemukati kana ichikwanisa kuchengetedza bhora revhu repurasitiki uye simba rekuchinja mushure mekuoma rinoshandiswa kuona kureba kwayo.Iyo yakawanda jecha rinowedzerwa, kusimba kwekubatana kweivhu rekaolin iyi.Kazhinji, kaolin ine purasitiki yakasimba inewo simba rekusunga rakasimba.

Kuomesa kuita
Drying performance inoreva kuita kwekaolin mud panguva yekuomesa.Izvi zvinosanganisira kuomesa shrinkage, kuomesa simba, uye kuomesa sensitivity.

Drying shrinkage zvinoreva kupera kwevhu rekaolin mushure mekupera mvura uye kuoma.Kaolin ivhu rinowanzoomeswa nemvura uye kuomeswa patembiricha inotangira pa40-60 ℃ kusvika isingapfuure 110 ℃.Nekuda kwekubuda kwemvura, chinhambwe chinhambwe chinopfupikiswa, uye kureba uye vhoriyamu yemuenzaniso zvinoderedzwa.Drying shrinkage inokamurwa kuita linear shrinkage uye volumetric shrinkage, inoratidzwa seye muzana yekuchinja kwehurefu uye huwandu hwedhaka rekaolin mushure mekuoma kusvika kuhuremu hwenguva dzose.Iko kuomeswa kwekaolin kunowanzoita 3-10%.Iyo yakatsetseka saizi yechikamu, yakakura iyo chaiyo nzvimbo yepasi, zviri nani iyo plasticity, uye yakakura kuomesa shrinkage.Kuderera kwemhando imwechete yekaolin kunosiyana zvichienderana nehuwandu hwemvura yakawedzerwa.

Ceramics haingove nezvinodiwa zvakasimba zvepurasitiki, kunamatira, kuomesa shrinkage, kuomesa simba, sintering shrinkage, sintering properties, kudzivirira moto, uye post firing whiteness ye kaolin, asiwo zvinosanganisira zvinhu zvemakemikari, kunyanya kuvapo kwezvinhu zvechromogenic zvakadai sesimbi, titanium, mhangura, chromium, uye manganese, izvo zvinoderedza kuchena kwemashure uye kuburitsa mavara.