Kaolin, ib yam khoom siv uas tsis yog hlau, yog ib hom av nplaum thiab pob zeb av nplaum uas feem ntau yog ua los ntawm cov av nplaum kaolinite. Vim nws cov xim dawb thiab zoo nkauj, nws kuj hu ua av Baiyun. Cov khoom tseem ceeb yog txhuas trioxide thiab silicon dioxide.

Nws cov kaolin dawb huv yog dawb, mos, thiab mos hauv cov qauv, nrog cov khoom zoo thiab tshuaj lom neeg xws li plasticity thiab hluav taws tsis kam. Nws cov khoom siv hauv av feem ntau yog tsim los ntawm kaolinite, halloysite, hydromica, illite, montmorillonite, nrog rau cov zaub mov xws li quartz thiab feldspar.

Cov yam ntxwv ntawm cov txheej txheem:

1. Qhov Dawb Qhov Ci - Qhov dawb yog ib qho ntawm cov yam ntxwv tseem ceeb rau kev ua haujlwm ntawm kaolin, thiab cov kaolin dawb huv yog dawb. Qhov dawb ntawm kaolin yog muab faib ua qhov dawb ntuj thiab qhov dawb calcined. Rau cov khoom siv ceramic raw, qhov dawb tom qab calcination tseem ceeb dua, thiab qhov siab dua qhov dawb calcined, qhov zoo dua.

2. Kev faib tawm qhov loj ntawm cov khoom me me - Kev faib tawm qhov loj ntawm cov khoom me me yog hais txog qhov sib piv (qhia ua feem pua) ntawm cov khoom me me hauv kaolin ntuj hauv ib qho ntau yam ntawm cov khoom me me sib txawv (qhia ua millimeters lossis micrometer mesh). Txhua lub chaw haujlwm kev lag luam muaj cov kev cai tshwj xeeb rau qhov loj me ntawm cov khoom me me thiab qhov zoo ntawm kaolin rau ntau lub hom phiaj sib txawv. Tebchaws Meskas xav kom kaolin siv ua txheej kom muaj cov ntsiab lus tsawg dua 2 μ m (6250 mesh), suav txog 90-95%, thiab cov ntawv sau ua ntawv nrog cov ntsiab lus tsawg dua 2 μ m suav txog 78-80%. Rau cov txheej txheem casting uas xav tau kev casting sai, kev nrawm nrawm grouting, thiab kev qhuav dej ceev, nws yog qhov tsim nyog los nce qhov loj me ntawm cov khoom xyaw.

3. Kev Ncua: Kev Ncua thiab kev sib kis yog hais txog cov yam ntxwv ntawm kaolin uas nyuaj rau precipitate thaum dispersed hauv dej. Kuj hu ua anti flocculation. Qhov me me ntawm cov khoom me me, qhov zoo dua ntawm kev ncua. Kaolin siv hauv kev lag luam enamel xav tau cov yam ntxwv zoo ntawm kev ncua. Kev ua tau zoo ntawm kev ncua ntawm cov qauv dispersed hauv dej feem ntau yog txiav txim siab los ntawm nws qhov kev sib sau ua ke dhau ib lub sijhawm.

4. Kev rwb thaiv hluav taws xob: Cov kaolin zoo muaj cov khoom rwb thaiv hluav taws xob zoo, uas tuaj yeem siv los ua cov ceramics zaus siab thiab cov ceramics wireless. Qib ntawm kev ua haujlwm rwb thaiv hluav taws xob tuaj yeem ntsuas los ntawm nws lub peev xwm los tiv taus kev tawg hluav taws xob.

Kev faib tawm:

Cov kaolin uas tau ntxuav hauv dej thiab tau hlawv hauv cov kaolin metakaolin

Kev Siv:

Kaolin muaj ntau yam kev siv, feem ntau yog siv rau hauv kev ua ntawv, ceramics, thiab cov khoom siv refractory, ua raws li cov tshuaj pleev xim, cov roj hmab fillers, enamel glazes, thiab cov khoom siv cement dawb. Hauv cov khoom me me, nws yog siv rau hauv kev lag luam xws li plastics, xim, pigments, sib tsoo log, cwj mem qhuav, tshuaj pleev ib ce txhua hnub, xab npum, textiles, roj av, tshuaj lom neeg, cov ntaub ntawv tsim kho, thiab lwm yam.