Ukusatshalaliswa kosayizi wezinhlayiya
Ukusatshalaliswa kosayizi wezinhlayiyana kubhekisela engxenyeni (evezwa ngokuqukethwe kwephesenti) yezinhlayiyana ku-kaolin yemvelo ngaphakathi kobubanzi obunikeziwe bobukhulu bezinhlayiyana obuqhubekayo obuhlukene (obuvezwa ngobukhulu be-mesh yamamilimitha noma ama-micrometer). Izici zokusatshalaliswa kosayizi wezinhlayiyana ze-kaolin zibaluleke kakhulu ekukhetheni nasekusetshenzisweni kwenqubo ye-ores. Usayizi wezinhlayiyana zayo unomthelela omkhulu ekubunjweni kwayo, ukuthambekela kodaka, umthamo wokushintshana kwama-ion, ukusebenza kokubumba, ukusebenza kokomisa, kanye nokusebenza kokusila. I-ore ye-kaolin idinga ukucutshungulwa kobuchwepheshe, nokuthi kulula yini ukuyicubungula kuze kube ubuncane obudingekayo isibe ngenye yezindinganiso zokuhlola ikhwalithi ye-ore. Umnyango ngamunye wezimboni unezidingo ezithile zobukhulu bezinhlayiyana kanye nobuncane bokusetshenziswa okuhlukile kwe-kaolin. Uma i-United States idinga ukuthi i-kaolin esetshenziswa njengesembozo ibe ngaphansi kuka-2 μ Okuqukethwe kwe-m kubalwa ku-90-95%, kanti isigcwalisi sephepha singaphansi kuka-2 μ Ingxenye ye-m ingu-78-80%.

Ukuqina kwepulasitiki
Ubumba olwakhiwe ngokuhlanganiswa kwe-kaolin namanzi lungaguquguquka ngaphansi kwamandla angaphandle, futhi ngemva kokususwa kwamandla angaphandle, lungaqhubeka nokugcina le mpahla yokuguqulwa, ebizwa ngokuthi i-plasticity. I-plasticity iyisisekelo senqubo yokwakheka kwe-kaolin emizimbeni ye-ceramic, futhi futhi iyisibonakaliso esiyinhloko sobuchwepheshe senqubo. Ngokuvamile, i-plasticity index kanye ne-plasticity index zisetshenziselwa ukumela usayizi we-plasticity. I-plasticity index ibhekisela kumthamo womswakama womhlabathi wezinto zobumba ze-kaolin ngaphandle komthamo womswakama womhlabathi wepulasitiki, ovezwa njengephesenti, okungukuthi i-W plasticity index=100 (W liquid limit – W plasticity limit). I-plasticity index imelela ukwakheka kwezinto zobumba ze-kaolin. Umthwalo kanye nokuguqulwa kwebhola lobumba ngesikhathi sokucindezela nokuchoboza kungalinganiswa ngqo kusetshenziswa imitha ye-plasticity, evezwa ngo-kg · cm. Ngokuvamile, lapho i-plasticity index iphakeme, kulapho ukwakheka kwayo kuba ngcono khona. I-plasticity ye-kaolin ingahlukaniswa ibe amazinga amane.

Amandla epulasitiki Inkomba yepulasitiki Inkomba yepulasitiki
Ukuqina okuqinile> 153.6
Ukuqina okuphakathi 7-152.5-3.6
Ukuqina okubuthakathaka 1-7<2.5
Akuyona ipulasitiki<1
Ubudlelwano

Ukubopha kubhekisela ekhonweni le-kaolin lokuhlangana nezinto zokusetshenziswa ezingezona ipulasitiki ukuze kwakhiwe izinqwaba zobumba zepulasitiki futhi kube namandla athile okomisa. Ukunqunywa kwekhono lokubopha kuhilela ukwengeza isihlabathi se-quartz esijwayelekile (esinokwakheka kwesisindo sengxenye engu-0.25-0.15 yobukhulu bezinhlayiyana ebalelwa ku-70% kanye nengxenye engu-0.15-0.09mm yobukhulu bezinhlayiyana ebalelwa ku-30%) ku-kaolin. Okuqukethwe kwesihlabathi okuphezulu kakhulu lapho isakwazi ukugcina ibhola lobumba lepulasitiki kanye namandla okuguquguquka ngemva kokomisa kusetshenziswa ukunquma ukuphakama kwayo. Lapho kunezelwa isihlabathi esiningi, kulapho ikhono lokubopha lale nhlabathi ye-kaolin liqina khona. Ngokuvamile, i-kaolin enokubumba okuqinile nayo inekhono lokubopha eliqinile.

Ukusebenza kokomisa
Ukusebenza kokomisa kubhekisela ekusebenzeni kodaka lwe-kaolin ngesikhathi senqubo yokomisa. Lokhu kufaka phakathi ukuncishiswa kokomisa, amandla okomisa, kanye nokuzwela kokomisa.

Ukuncipha kokomisa kubhekisela ekuncipheni kobumba lwe-kaolin ngemva kokuphelelwa amanzi kanye nokomisa. Ubumba lwe-kaolin luvame ukuphelelwa amanzi kanye nokomisa emazingeni okushisa asukela ku-40-60 ℃ kuya ku-110 ℃. Ngenxa yokukhishwa kwamanzi, ibanga lezinhlayiya liyafinyezwa, futhi ubude kanye nomthamo wesampula kuyancipha. Ukuncipha kokomisa kuhlukaniswe ngokuncipha okuqondile kanye nokuncipha kwevolumu, okuvezwa njengephesenti lokushintsha kobude kanye nomthamo wodaka lwe-kaolin ngemva kokomisa kube yisisindo esingaguquki. Ukuncipha kokomisa kwe-kaolin ngokuvamile kungu-3-10%. Uma ubukhulu bezinhlayiya buncane, indawo ethile yobuso inkulu, kuba ngcono kakhulu, futhi ukuncipha kokomisa kukhulu. Ukuncipha kohlobo olufanayo lwe-kaolin kuyahlukahluka kuye ngokuthi amanzi engeziwe.

I-ceramics ayinazo nje kuphela izidingo eziqinile ze-plasticity, ukunamathela, ukuncipha kokomisa, amandla okomisa, ukuncipha kokusila, izakhiwo zokusila, ukumelana nomlilo, kanye nobumhlophe be-kaolin ngemuva kokudubula, kodwa futhi ihilela izakhiwo zamakhemikhali, ikakhulukazi ukuba khona kwezinto ezibangela i-chromogenic njengensimbi, i-titanium, ithusi, i-chromium, kanye ne-manganese, okunciphisa ubumhlophe be-post-shooting futhi kukhiqize amabala.