Txoj kev hloov pauv los ntawm ore mus rau hnav-resistant alumina hauv ob sab phlu
Raws li peb txhua tus paub, hnav-resistant alumina hauv ob sab phlu yog siv los ua pob zeb hauv ob sab phlu, uas muaj cov yam ntxwv ntawm siab hardness, siab ceev, tsis tshua muaj hnav, siab tsis tu ncua thiab corrosion kuj. Lawv tau siv dav hauv ceramics, cement, xim, pigment, tshuaj lom neeg kev lag luam, tshuaj, txheej, inorganic Mineral hmoov ua thiab lwm yam lag luam, yuav ua li cas yog cov hnav-resistant oxide hauv ob sab phlu cib tsim los ntawm ore?
Tom qab cov ore uas muaj alumina yog mined, nws yuav roughly tiav rau hauv industrial alumina (-AL2O3), cov ntsiab lus alumina nyob rau lub sij hawm no yog hais txog 65 feem pua, thiab ces ntxiv ua rau alumina hmoov (-AL2O3), cov ntsiab lus alumina Yog hais tias nws ncav cuag. 99.5 feem pua, nws tuaj yeem yuav los ntawm ntau lub tuam txhab ceramic ua cov khoom siv zoo ntawm ceramics.
Tom qab cov hmoov alumina nkag mus rau hauv lub Hoobkas, nws yog feem ntau pulverized ua ntej kom paub meej tias qhov zoo ntawm alumina hmoov ua tau raws li qhov yuav tsum tau ua. Ib qho me me ntawm binder, coarser hais thiab cov hmoov zoo yog tov los ua ib lub billet, thiab cov billet yog muab tso rau hauv cov qauv hlau. , yog nias thiab tsim ntawm cov xovxwm.
Cov txheej txheem hnav-resistant alumina hauv ob sab phlu yog muab tso rau hauv lub tsheb kiln thiab xa mus rau qhov kub-kub qhov cub. Tom qab kub kub calcination ntawm txog 1700 degree, cov txheej txheem tiav tiav tiav. Tom qab ntawd, tus tswv ntawm lub rooj cob qhia yuav mus los ntawm kev tshuaj ntsuam, sib tsoo, thiab rov ntim dua. Nws tsis tas yuav tsum tau thauj khoom thiab xa mus rau ntau qhov chaw raws li qhov xav tau ntawm cov neeg siv khoom, thiab ua si lub luag haujlwm ntawm cov ris tsho hnav-resistant hauv ob sab phlu.
