Rarraba girman barbashi
Rarraba girman barbashi yana nufin rabon (wanda aka bayyana a cikin kashi na abun ciki) na barbashi a cikin kaolin na halitta a cikin wani tsari na ci gaba da girma daban-daban na barbashi (wanda aka bayyana a cikin girman millimita ko micrometers). Halayen rarraba girman barbashi na kaolin suna da matuƙar mahimmanci ga zaɓin da aiwatar da ma'adanai. Girman barbashi yana da tasiri mai mahimmanci akan ƙarfinsa, dankowar laka, ƙarfin musayar ion, aikin ƙira, aikin bushewa, da aikin sintering. Ma'adinan Kaolin yana buƙatar sarrafa fasaha, kuma ko yana da sauƙin sarrafawa zuwa ga ƙarancin da ake buƙata ya zama ɗaya daga cikin ƙa'idodi don kimanta ingancin ma'adinan. Kowane sashen masana'antu yana da takamaiman girman barbashi da buƙatun ƙazanta don amfani daban-daban na kaolin. Idan Amurka tana buƙatar kaolin da aka yi amfani da shi azaman shafi ya zama ƙasa da 2 μ. Abun cikin m yana lissafin 90-95%, kuma cika takarda bai wuce 2 μ ba. Kashi na m shine 78-80%.

Roba
Yumbun da aka samar ta hanyar haɗin kaolin da ruwa zai iya lalacewa a ƙarƙashin ƙarfin waje, kuma bayan an cire ƙarfin waje, har yanzu yana iya kiyaye wannan sifar nakasa, wanda ake kira plasticity. Roba shine tushen tsarin samar da kaolin a cikin jikin yumbu, kuma shine babban alamar fasaha na tsarin. Yawanci, ana amfani da ma'aunin plasticity da ma'aunin plasticity don wakiltar girman plasticity. Ma'aunin plasticity yana nufin iyakar ruwa abun ciki na danshi na kayan yumbu na kaolin ban da iyakar danshi na filastik, wanda aka bayyana a matsayin kashi, watau ma'aunin plasticity na W = 100 (iyakar ruwa ta W - iyakar plasticity na W). Ma'aunin plasticity yana wakiltar samuwar kayan yumbu na kaolin. Ana iya auna nauyin da nakasa na ƙwallon yumbu yayin matsi da niƙa kai tsaye ta amfani da ma'aunin plasticity, wanda aka bayyana a cikin kg · cm. Sau da yawa, mafi girman ma'aunin plasticity, mafi kyawun samuwarsa. Ana iya raba plasticity na kaolin zuwa matakai huɗu.

Ƙarfin Roba Fihirisar Roba Fihirisar Roba Fihirisar Roba Fihirisar Roba
Ƙarfin filastik mai ƙarfi> 153.6
Matsakaicin filastik 7-152.5-3.6
Rashin ƙarfin lantarki 1-7<2.5
Ba a iya yin amfani da shi ba<1
Haɗin gwiwa

Haɗawa yana nufin ikon kaolin na haɗuwa da kayan da ba na filastik ba don samar da tarin yumbu na filastik kuma yana da ƙarfin bushewa. Ƙin tantance ƙarfin ɗaurewa ya haɗa da ƙara yashi na quartz na yau da kullun (tare da yawan abun ciki na 0.25-0.15 girman barbashi wanda ya kai kashi 70% da kuma 0.15-0.09mm girman barbashi wanda ya kai kashi 30%) ga kaolin. Mafi girman abun ciki na yashi lokacin da har yanzu zai iya riƙe ƙwallon yumbu na filastik da ƙarfin lanƙwasa bayan bushewa ana amfani da shi don tantance tsayinsa. Da zarar an ƙara yashi, ƙarfin haɗin wannan ƙasa na kaolin yana ƙaruwa. Yawanci, kaolin mai ƙarfi mai ƙarfi kuma yana da ƙarfin ɗaurewa mai ƙarfi.

Aikin busarwa
Aikin busarwa yana nufin aikin laka na kaolin yayin busarwa. Wannan ya haɗa da raguwar busarwa, ƙarfin busarwa, da kuma sauƙin busarwa.

Busarwa ta rage girman yumbun kaolin bayan bushewa da bushewa. Yawanci yumbun kaolin yana shan bushewa da bushewa a yanayin zafi daga 40-60 ℃ zuwa ƙasa da 110 ℃. Saboda fitar da ruwa, nisan barbashi yana raguwa, kuma tsayi da girman samfurin yana iya raguwa. Busarwa ta rage girmansa zuwa raguwar layi da raguwar girma, wanda aka bayyana a matsayin kashi na canjin tsayi da girman laka na kaolin bayan bushewa zuwa nauyi mai ɗorewa. Busarwa ta kaolin gabaɗaya shine 3-10%. Mafi ƙarancin girman barbashi, mafi girman yankin saman, mafi kyawun filastik, kuma mafi girman raguwar bushewa. Ragewar nau'in kaolin iri ɗaya ya bambanta dangane da adadin ruwan da aka ƙara.

Ba wai kawai yumbu yana da ƙa'idodi masu tsauri don plasticity, mannewa, raguwar bushewa, ƙarfin bushewa, raguwar sintering, halayen sintering, juriyar wuta, da farin kaolin bayan harbi ba, har ma yana da kaddarorin sinadarai, musamman kasancewar abubuwan chromogenic kamar ƙarfe, titanium, jan ƙarfe, chromium, da manganese, waɗanda ke rage farin bayan harbi kuma suna haifar da tabo.