Kaolin wani ma'adinai ne wanda ba na ƙarfe ba, wanda nau'in yumbu ne da dutsen yumbu wanda ya ƙunshi ma'adanai na ƙungiyar kaolinite.Saboda fari da lallausan kamanni, ana kuma kiranta da ƙasa Baiyun.Mai suna Gaoling Village a Jingdezhen, lardin Jiangxi.

Tsaftataccen kaolin sa fari ne, mai taushin hali, kuma mai laushi a cikin rubutu, yana da kyawawan halaye na zahiri da sinadarai kamar robobi da juriya na wuta.Abubuwan da ke cikin ma'adinai sun ƙunshi kaolinite, halloysite, hydromica, illite, montmorillonite, da ma'adanai irin su quartz da feldspar.Kaolin yana da fa'idodin amfani da yawa, galibi ana amfani da su wajen yin takarda, yumbu, da kayan gyarawa, sa'an nan kuma ana amfani da suttura, filayen roba, glazes na enamel, da albarkatun fararen siminti.A cikin ƙananan kuɗi, ana amfani da shi a cikin filastik, fenti, pigments, ƙafafun niƙa, fensir, kayan shafawa na yau da kullum, sabulu, magungunan kashe qwari, magunguna, masaku, man fetur, sinadarai, kayan gini, tsaro na kasa da sauran sassan masana'antu.

Halayen tsari
Nadawa Farin Haske

Farin fata yana ɗaya daga cikin mahimman sigogi don aikin fasaha na kaolin, kuma kaolin mai tsafta fari ne.Farin kaolin ya kasu kashi-kashi fari na halitta da launin fari.Don albarkatun kasa na yumbu, farin bayan calcination ya fi mahimmanci, kuma mafi girman launin launin fata, mafi kyawun inganci.Tsarin yumbura ya nuna cewa bushewa a 105 ℃ shine ma'auni na grading don fari na halitta, kuma ƙididdigewa a 1300 ℃ shine ma'auni na grading don calcined fari.Ana iya auna fari ta amfani da mitar fari.Mitar fari tana auna hasken 3800-7000Å Na'ura don auna ma'aunin haske a tsawon zangon (watau 1 angstrom=0.1 nanometers).A cikin mitar farar fata, ana kwatanta ma'anar samfurin gwajin tare da na daidaitaccen samfurin (kamar BaSO4, MgO, da dai sauransu), wanda ya haifar da ƙimar farar fata (kamar fari na 90, wanda yake daidai da 90% na nuni na misali misali).

Hasken sigar tsari ce mai kama da fari, daidai da 4570Å Farin haske a ƙarƙashin (angstrom) hasken haske mai tsayi.

Launin kaolin yana da alaƙa da ƙarfe oxides ko kwayoyin halitta da ke cikinsa.Gabaɗaya yana ɗauke da Fe2O3, yana bayyana ja da launin ruwan rawaya;Ya ƙunshi Fe2+, yana bayyana shuɗi mai haske da kore mai haske;Ya ƙunshi MnO2, yana bayyana launin ruwan kasa mai haske;Idan ya ƙunshi kwayoyin halitta, yana bayyana a cikin haske rawaya, launin toka, blue, baki da sauran launuka.Waɗannan ƙazanta suna wanzu, suna rage farar kaolin.Daga cikin su, ma'adinan ƙarfe da titanium suma suna iya yin tasiri ga launin fata, haifar da tabo masu launi ko narke tabo akan ain.

Rarraba girman barbashi
Rarraba girman barbashi yana nufin adadin barbashi a cikin kaolin na halitta a cikin ci gaba da kewayon nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan da aka bayyana (bayyana su a cikin milimita ko ragar micrometer), wanda aka bayyana a cikin adadin abun ciki.The barbashi size rarraba halaye na kaolin ne mai girma ma'ana ga selectivity da aiwatar aikace-aikace na ores.Its barbashi size yana da gagarumin tasiri a kan ta plasticity, laka danko, ion musayar iya aiki, forming yi, bushewa yi, da harbe-harbe yi.Kaolin tama yana buƙatar sarrafa fasaha, kuma ko yana da sauƙin sarrafawa zuwa ƙimar da ake buƙata ya zama ɗaya daga cikin ma'auni don kimanta ingancin tama.Kowane sashen masana'antu yana da takamaiman buƙatu don girman barbashi da fineness na kaolin don dalilai daban-daban.Idan Amurka tana buƙatar kaolin da aka yi amfani da shi azaman sutura don zama ƙasa da 2 μ Abubuwan da ke cikin m suna da 90-95%, kuma kayan cika takarda bai wuce 2 μ M lissafin 78-80%.

Ninka dauri
Adhesion yana nufin iyawar kaolin don haɗawa da kayan da ba na filastik ba don samar da ɗimbin laka na robobi kuma suna da ƙayyadaddun ƙarfin bushewa.Ƙayyadaddun ikon ɗaure ya haɗa da ƙara daidaitaccen yashi ma'adini (tare da babban abun da ke ciki na 0.25-0.15 ɓangarorin girman juzu'i na lissafin 70% da 0.15-0.09mm girman girman juzu'i na lissafin 30%) zuwa kaolin.Yin la'akari da tsayinsa dangane da mafi girman yashi yayin da har yanzu yana iya kula da yawan yumbu na filastik da ƙarfinsa bayan bushewa, yawancin yashi yana ƙara ƙarfi, ƙarfin dauri na wannan kaolin.Yawancin lokaci, kaolin mai ƙarfi mai ƙarfi shima yana da ƙarfin ɗauri mai ƙarfi.

Nadawa m
Dankowa yana nufin sifa ta wani ruwa mai hana ruwa gudu saboda gogayya ta ciki.Girman sa (aiki akan yanki na raka'a 1 na juzu'in ciki) ana wakilta ta da danko, a cikin raka'a na Pa · s.Ana auna ƙayyadaddun danko gabaɗaya ta amfani da na'urar gani na juyawa, wanda ke auna saurin jujjuyawar a cikin laka na kaolin mai ɗauke da ingantaccen abun ciki 70%.A cikin tsarin samarwa, danko yana da mahimmanci.Ba wai kawai mahimmancin ma'auni ba ne a cikin masana'antar yumbura, amma kuma yana da tasiri mai mahimmanci akan masana'antar yin takarda.Bisa ga bayanai, lokacin amfani da kaolin a matsayin sutura a cikin kasashen waje, ana buƙatar danko ya zama kusan 0.5Pa · s don ƙananan saurin rufewa da ƙasa da 1.5Pa · s don rufi mai sauri.

Thixotropy yana nufin halayen da slurry ɗin da aka yi kauri a cikin gel kuma baya gudana ya zama ruwa bayan an damu da shi, sannan a hankali ya yi kauri zuwa yanayin asali bayan ya kasance a tsaye.Ana amfani da ma'aunin kauri don wakiltar girmansa, kuma ana auna ta ta amfani da viscometer mai fita da na'urar gani da ido.

A danko da thixotropy suna da alaka da ma'adinai abun da ke ciki, barbashi size, da kuma cation irin a cikin laka.Gabaɗaya, waɗanda ke da babban abun ciki na montmorillonite, ƙaƙƙarfan barbashi, da sodium a matsayin babban cation ɗin da za a iya musanyawa suna da babban danko da ƙaƙƙarfan ƙima.Sabili da haka, a cikin tsari, ana amfani da hanyoyi irin su ƙara yumbu mai filastik da inganta kyau don inganta danko da thixotropy, yayin da ake amfani da hanyoyi irin su ƙara haɓakar electrolyte da abun ciki na ruwa don rage shi.