magnesia-alumina spinel

Magnesia-aluminium spinel (magnesia-alumina spinel) e bua ka thepa e tala ea spinel e entsoeng ka maiketsetso e sebelisang magnesium oxide le aluminium oxide e le lisebelisoa tse tala. Lintho tse tala ha li fumanehe tlhahong, ‘me magnesia-aluminium spinel ea indasteri kaofela e entsoe ka maiketsetso. Bauxite-based sintered magnesia-aluminium spinel e entsoe ka bauxite ea boleng bo phahameng e nang le litaba tsa Al2O3 tse fetang 76% le phofo ea magnesia ea boleng bo phahameng e nang le khanya e nang le MgO e fetang 95%. Sintered ka mocheso o phahameng o ka holimo.

Selelekela

Bauxite-based sintered magnesia-aluminium spinel e entsoe ka bauxite ea boleng bo phahameng e nang le litaba tsa Al2O3 tse fetang 76% le phofo ea magnesia ea boleng bo phahameng e nang le khanya e nang le MgO e fetang 95%. The ka holimo phahameng mocheso sintering [1].

Litšobotsi tsa aluminium-magnesium spinel

Bauxite-based sintered magnesia-aluminium spinel e entsoe ka bauxite ea boleng bo phahameng e nang le litaba tsa Al2O3 tse fetang 76% le phofo ea magnesia ea boleng bo phahameng e nang le khanya e nang le MgO e fetang 95%. E siiloe ka mocheso o phahameng, ka bongata bo bongata bo bongata, lihlahisoa tse phahameng tsa liminerale, lithollo tsa kristale tse ntlafalitsoeng hantle, sebopeho se ts’oanang le boleng bo tsitsitseng. Magnesium-aluminium spinel e na le khanyetso e ntle ea kutu, matla a matla a ho senya le ho senya, ho hanyetsa slag, ho hanyetsa abrasion, botsitso ba mocheso oa mocheso, ho hanyetsa mocheso o phahameng le litšobotsi tse ling tsa tshebetso. Ke thepa e tala e loketseng bakeng sa tlhahiso ea lihlahisoa tsa refractory tse kang litene tsa magnesia-aluminium spinel bakeng sa libaka tse nang le mocheso o phahameng oa lijana tsa samente tsa rotary, litene tsa ladle le li-ladle castables. Magnesium-aluminium spinel e sebelisoa haholo linthong tse refractory, ho qhibilihisa tšepe, libotlolo tsa rotary tsa samente le liotlolo tsa indasteri tsa khalase[2].

Tšebeliso ea Al-Mg Spinel

E na le khanyetso e ntle ea kutu, e hanyetsa abrasion le botsitso bo botle ba mocheso oa mocheso. Tšebeliso ea eona e ka sehloohong: Ntlha ea pele, ho nkela lehlabathe la magnesia chrome sebaka ho etsa litene tsa spinel tsa magnesia-aluminium bakeng sa libotlolo tsa samente tsa rotary, tse sa qobeng tšilafalo ea chromium feela, empa hape li na le ho hanyetsa ha spalling hantle; ea bobeli, e sebelisetsoa ho etsa li-ladle castables, ho ntlafatsa haholo Ho hanyetsa ha kutu ea lesela la tšepe la tšepe. E sebelisoa haholo ka thepa ea refractory bakeng sa ho etsa tšepe. Tlhahiso ea boleng bo phahameng ba pre-synthetic spinel e fana ka lisebelisoa tse ncha tse tala bakeng sa tlhahiso ea li-refractories tse sa tsitsang le tse bōpehileng tse phahameng tse hloekileng[2].

rarolla qeto

Ho na le mefuta e ‘meli ea mokhoa oa ho qhibiliha oa motlakase le mokhoa oa ho qhibiliha. Mokhoa oa motsoako oa electrofusion o sebelisa alumina ea indasteri kapa bauxite ea bohloeki bo phahameng le magnesia e chesitsoeng ka leseli (e nang le magnesium ea tlhaho kapa ea leoatle (brine) e tsamaisoang ke metsi) ka tekanyo, ‘me e qhibilihisoa ka mocheso o phahameng oa hoo e ka bang 2200 ℃ ka seboping sa motlakase sa arc. Mokhoa oa sintering ke oa ho sebelisa karo-karolelano ea thepa e tala e boletsoeng ka holimo, ka mor’a ho sila, ho tsoaka, ho phunya le ho kolobisa ka har’a sebōpi sa rotary kapa shaft kiln ka mocheso o phahameng ka holimo ho 1800 ℃. Liteneng tse ling, alumina ea indasteri kapa e phahameng Ka mor’a hore ho hloekisoe bauxite clinker e fatše, e eketsoa kapa e kopane fatše, e tsoakane, ‘me e bōpehe ho ea ka litlhoko tsa metsoako, ebe e chesoa ka mocheso o phahameng ho hlahisa litene tsa spinel tsa magnesia-aluminium. e sebedisoang haholo hodima sebopi se bulehileng le dikarolo tse ding.