Kugoverwa kwehukuru hwezvikamu
Kugoverwa kwehukuru hwezvikamu kunoreva huwandu (hunoratidzwa muhuwandu hwehuwandu) hwezvikamu mu kaolin yechisikigo mukati mehuwandu hwakatarwa hwehukuru hwakasiyana hwezvikamu (hunoratidzwa muhukuru hwemamirimita kana micrometer). Hunhu hwekugoverwa kwehukuru hwezvikamu hwe kaolin hunokosha zvikuru pakusarudza uye kushandiswa kwemaitiro ematombo. Hukuru hwayo hune simba guru pakugadzirwa kwayo, viscosity yematope, kugona kwekuchinjana kwemaion, mashandiro ekuumba, mashandiro ekuomesa, uye mashandiro ekupisa. Kaolin ore inoda kugadziriswa kwehunyanzvi, uye kana iri nyore kugadzirisa kusvika pakunaka kunodiwa kwave imwe yemipimo yekuongorora mhando yematombo. Dhipatimendi rega rega remaindasitiri rine saizi chaiyo yezvikamu uye zvinodiwa zvekunaka kwekushandiswa kwakasiyana kwe kaolin. Kana United States ichida kuti kaolin ishandiswe sechifukidziro ive pasi pe2 μ Zviri mukati me m zvinosvika 90-95%, uye pepa rekuzadza riri pasi pe2 μ Chikamu che m i78-80%.

Kupfava
Ivhu rinoumbwa nekusanganiswa kwekaolin nemvura rinogona kushata pasi pesimba rekunze, uye mushure mekunge simba rekunze rabviswa, rinogona kuramba richichengetedza hunhu uhwu hwekushata, hunonzi plasticity. Plasticity ndiyo hwaro hwemaitiro ekuumba kaolin mumidziyo yeceramic, uye ndiyo zvakare chiratidzo chikuru chehunyanzvi hwemaitiro acho. Kazhinji, plasticity index uye plasticity index zvinoshandiswa kumiririra saizi yeplasticity. Plasticity index inoreva liquid limit moisture content ye kaolin clay material minus plastic limit moisture content, inoratidzwa se percentage, kureva W plasticity index=100 (W liquid limit – W plasticity limit). Plasticity index inomiririra kuumbwa kwe kaolin clay material. Mutoro uye deformation yebhora revhu panguva yekudzvanywa nekupwanywa zvinogona kuyerwa zvakananga uchishandisa plasticity meter, inoratidzwa mu kg · cm. Kazhinji, plasticity index yakakwira, kuumbwa kwayo kuri nani. Plasticity ye kaolin inogona kukamurwa kuita mazinga mana.

Simba repurasitiki Chiratidzo chepurasitiki Chiratidzo chepurasitiki Chiratidzo chepurasitiki
Kusimba kwakasimba> 153.6
Kupfava kwepakati 7-152.5-3.6
Kusasimba kwepurasitiki 1-7<2.5
Kwete purasitiki<1
Kushamwaridzana

Kusungana zvinoreva kugona kwekaolin kusangana nezvinhu zvisiri zvepurasitiki kuti zvigadzire ivhu repurasitiki uye zvive nesimba rekuomesa. Kuziva kugona kwekubatanidza kunosanganisira kuwedzera jecha re quartz rakajairika (rine huremu hwe 0.25-0.15 particle size fraction inokwana 70% uye 0.15-0.09mm particle size fraction inokwana 30%) ku kaolin. Huremu hwejecha hwakanyanya kana richikwanisa kuchengetedza bhora repurasitiki uye simba rekutenderera mushure mekuomesa zvinoshandiswa kuona kureba kwaro. Jecha rakawanda parinowedzerwa, kugona kwekubatanidza kwevhu iri re kaolin kwakasimba. Kazhinji, kaolin ine plasticity yakasimba inewo kugona kwakasimba kwekubatanidza.

Kuoma kwekushanda
Kushanda kwekuomesa zvinoreva kushanda kwedope re kaolin panguva yekuomesa. Izvi zvinosanganisira kuomesa, simba rekuomesa, uye kunzwisisika kwekuomesa.

Kuomesa kushoma zvinoreva kushoma kwevhu re kaolin mushure mekuoma nemvura uye kuoma. Ivhu re kaolin rinowanzo pera mvura uye kuoma patembiricha iri pakati pe40-60 ℃ kusvika pasingapfuuri 110 ℃. Nekuda kwekubuda kwemvura, daro rezvikamu rinopfupikiswa, uye kureba nehukuru hwemuenzaniso zvinoderedzwa. Kuoma kushoma kwakakamurwa kuita kushoma kwakatwasuka uye kushoma kwehuwandu, kunoratidzwa sechikamu chekuchinja muhurefu nehukuru hwevhu re kaolin mushure mekuoma kusvika pahuremu hwakafanana. Kuoma kushoma kwe kaolin kunowanzova 3-10%. Kana saizi yezvikamu yakatetepa, nzvimbo chaiyo yepamusoro yakakura, purasitiki inova nani, uye kudonha kwekuoma kunokura. Kuoma kushoma kwemhando imwe chete ye kaolin kunosiyana zvichienderana nehuwandu hwemvura inowedzerwa.

Zvigadzirwa zveCeramics hazvina chete zvinodiwa kuti zvive nyore kugadzira plasticity, kunamira, kuoma, kusimba kwekuomesa, kuoma, hunhu hwekusvira, kudzivirira moto, uye kuchena kwekaolin mushure mekupiswa, asiwo zvine hunhu hwemakemikari, kunyanya kuvapo kwezvinhu zvakaita sesimbi, titanium, mhangura, chromium, uye manganese, izvo zvinoderedza kuchena kwemushonga mushure mekupiswa uye zvinogadzira mavara.