Aluminium Oxide Yabitswe AL2O3 Ikomeye
kwerekana ibicuruzwa
Aluminium oxyde iboneka cyane izwi nka corundum ibamba, abantu mubisanzwe bazajya babamo alumina mubice birenga 95% byitwa corundum crucible.Corundum ingirakamaro ni imbaraga zo gushonga, kurwanya ubushyuhe bwinshi, aside na alkali, kurwanya ubukonje nubushyuhe, kurwanya ruswa.Irakwiriye kubintu bimwe na bimwe bya alkaline idakomeye nka anhydrous Na2CO3 nkurugero rwo gushonga kwa flux, ariko ntibikenewe kuri Na2O2, NaOH, nibindi. gukingirwa hamwe nubukanishi mukirere cya redox ya 1650 ℃ -1700 ℃, hamwe nubushyuhe ntarengwa bwa 1800 ℃ mugihe gito.Ukurikije ibisabwa, progaramu ya alumina iraboneka mubunini no muburyo butandukanye.
Ibyingenzi
Ibintu nyamukuru biranga alumina ceramic ikomeye: kurwanya ubushyuhe bwa dogere 1200, bikwiranye na K2S207 nibindi bikoresho byo gushonga bya aside.Mubisanzwe, ntigomba gukoreshwa mugushonga Na0H, Na202 na Na2CO3, kugirango itangirika farashi ikomeye.Ifarashi ifatika ntishobora guhura na aside hydrofluoric.
Alumina ceramic crucible irashobora gutekwa HCl kugirango harebwe isuku yibikoresho hamwe nubushyuhe bwo hejuru.Ibikoresho bifite ubucucike bwinshi, birwanya okiside nziza, dogere 400-500 kurenza ibikoresho bya grafite, kugeza kuri dogere 900 hejuru, ubuzima burebure.Hamwe nubushyuhe bwinshi, coefficente yo kwagura ubushyuhe buke, ubushyuhe bwiza no kurwanya ihungabana no kurwanya ruswa.Imikorere yimiti irahagaze kandi mubyukuri ntabwo ikora nicyuma gishongeshejwe, kizamura ubuziranenge bwumuti.
(1) Biroroshye gukaraba no kugira isuku.Ikirahure cya ceramic crucible irasa kandi yoroshye, kandi biroroshye gukaraba nyuma yo kuyikoresha.
(2) Ifarashi ya farashi ni mike cyane, kandi igipimo cyo kwinjiza amazi kiri hasi cyane.Kubika igisubizo hamwe na ceramic ikomeye kandi ifunze neza birashobora gukumira ihindagurika, kwinjira no gutera bagiteri zo hanze.
(3) Imiti ihamye kandi iramba.Iyi ngingo iruta ibicuruzwa byicyuma nkumuringa, icyuma, aluminium, nibindi, ceramic crucible ifite imbaraga zo kurwanya aside, alkali, umunyu na gaze ya karubone mu kirere, ntibyoroshye kugira reaction yimiti hamwe nibintu, ntabwo ari ingese gusaza.
(4) Guhindura ubushyuhe bwiza no guhererekanya ubushyuhe buhoro.Ceramic crucible ifite imikorere yo kujya mubitandukaniro runaka byubushyuhe, bikaba byiza kuruta ibirahuri, ni umuyoboro mubi wubushyuhe, guhererekanya ubushyuhe buhoro, bikoreshwa mugutwara amazi abira cyangwa igisubizo gishyushye, iherezo ntirishyushye cyane.
Gusaba ibicuruzwa
Alumina ikoreshwa cyane, ibikoresho bya elegitoroniki, peteroli, imiti, inganda, ubukerarugendo, plastike, imyenda, impapuro, na farumasi nizindi nzego nyinshi zishobora kugaragara ishusho yacyo, mubisanzwe ni ibintu byihariye bya alumina na hydroxide ya aluminium.Nyamara, ibice birenga 90 ku ijana bya alumina bikoreshwa nkibikoresho fatizo bya aluminium electrolytike.
Kugeza ubu, hari ubwoko bwinshi butari alumina yo kuvura, ubwoko burenga 300, buri kimwe muri byo gifite imiterere myiza yumubiri n’imiti, ariko igiciro kiri hejuru cyane ya alumina yo kuvura.
Muburyo bwiza cyane ultrafine alumina, kurugero, kubera aho ishonga cyane, ubukana bwinshi, irwanya cyane, imiterere yubukanishi bwiza, kwambara nabi, kurwanya ruswa, kurwanya ubushyuhe nibindi byiza 2.Ibintu byinshi byingenzi, bityo bikoreshwa cyane mubikoresho bimwe bya kirisiti .
