Cov txheej txheem disintegration 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 raws li lub pob zeb hauv ob sab phlu, nrog cov hardness siab, siab ceev, tsis tshua muaj hnav, siab tsis tu ncua, corrosion kuj thiab lwm yam ntxwv, lug siv nyob rau hauv ceramics, cement, xim, pigment, tshuaj, tshuaj. , coatings, inorganic ntxhia hmoov ua thiab lwm yam lag luam, ces hnav-resistant oxide txheej cib yog tsim los ntawm ore?

Tom qab cov ore muaj alumina yog mined, nws yuav roughed rau hauv industrial alumina (-AL2O3), lub sij hawm no cov ntsiab lus alumina yog li ntawm 65%, thiab tom qab ntawd ua tiav rau hauv txhuas oxide hmoov (-AL2O3), cov ntsiab lus alumina yuav ncav cuag 99.5. %, uas tuaj yeem siv los ua cov khoom siv raw rau cov khoom siv zoo nkauj los yuav los ntawm ntau lub tuam txhab ceramic.

Tom qab aluminium oxide hmoov nkag mus rau hauv lub Hoobkas, nws feem ntau ua ntej kom paub meej tias qhov zoo ntawm aluminium oxide hmoov ua tau raws li qhov xav tau ntau lawm, thiab ib qho me me ntawm binder, coarser particles thiab cov hmoov zoo yog sib npaug los ua cov ntawv, uas tau muab tso rau. nyob rau hauv cov qauv hlau thiab tsim nyob rau hauv lub siab ntawm cov xovxwm.

Cov hnav-resistant aluminium oxide hauv ob sab phlu tom qab tsim rau hauv lub tsheb kiln rau hauv qhov kub kub qhov cub, tom qab 1700 degree kub kub calcination, cov txheej txheej cib tiav lawm, thiab tom qab ntawd tus tswv rhiav yuav raug tshuaj xyuas, polished, thiab tom qab ntawd ntim. , raws li qhov xav tau ntawm cov neeg siv khoom thauj lub tsheb thiab xa mus rau ntau qhov chaw, ua si lub luag haujlwm ntawm hnav-tiv taus hauv ob sab phlu cib.