E thehiloe litene tse phahameng tsa alumina

Special-shaped high alumina brick grade three high alumina brick is a kind of refractory material, the main component of this refractory brick is Al2O3.

Haeba litaba tsa Al2O3 li phahame ho feta 90%, e bitsoa setene sa corundum. Ka lebaka la lisebelisoa tse fapaneng, litekanyetso tsa naha ha li lumellane ka botlalo. Mohlala, linaha tsa Yuropa li behile moeli o tlase oa likateng tsa Al2O3 bakeng sa libaka tse phahameng tsa alumina ho 42%. Chaena, ho latela litaba tsa Al2O3 ka litene tse phahameng tsa alumina, hangata e arotsoe ka limaraka tse tharo: Kateng ea I──Al2O3 dikahare> 75%; Diteng tsa Kereiti ya II──Al2O3 ke 60 ～ 75%; Likateng tsa Kereiti ea III──Al2O3 ke 48 ～ 60%.

E entsoe ka setene se phahameng sa alumina

Litlhahiso tsa Mesebetsi

a. Refractoriness

Refractoriness ea litene tse phahameng tsa alumina e phahame ho feta ea litene tsa letsopa le semi-silika, e fihlang ho 1750 ~ 1790 ℃, e leng thepa ea boleng bo holimo e hanyetsanang.

b. Jarisa mocheso o nolofatsang

Hobane lihlahisoa tse nang le alumina e phahameng li na le Al2O3 e phahameng, litšila tse fokolang, le ‘mele ea khalase e fokolang, mocheso o nolofatsang mojaro o phahame ho feta oa litene tsa letsopa. Leha ho le joalo, hobane likristale tsa mullite ha li thehe sebopeho sa marang-rang, mocheso o kokobetsang mojaro o ntse o sa phahama joalo ka oa litene tsa silika.

c. Khanyetso ea slag

Litene tse phahameng tsa alumina li na le Al2O3 e ngata, e haufi le lisebelisoa tse sa nke lehlakore, ‘me e ka hanela khoholeho ea mobu ea acid le slagine. Ka lebaka la ho kenyelletsoa ha SiO2, bokhoni ba ho hanela slag ea alkaline bo fokola ho feta ba slag e nang le asiti.

Ts’ebeliso ea Sehlahisoa

Haholo-holo e sebelisetsoa lera la sebopi sa ho phatloha, sebopi se chesang se chesang, litulo tsa sebopi sa motlakase, sebopi sa ho phatloha, sebopi sa ho busetsa le li-kilns tsa rotary. Ntle le moo, litene tse phahameng tsa alumina le tsona li sebelisoa ka mokhoa o pharalletseng joalo ka litene tse bulehileng tsa leifo la leifo, lipolaka tsa ho tšela litsamaiso, litene tsa nozzle, jj. Leha ho le joalo, theko ea litene tse phahameng tsa alumina e phahametse ea litene tsa letsopa, ka hona ha ho hlokahale ho sebelisoa litene tse phahameng tsa alumina moo litene tsa letsopa li ka fihlelang litlhokahalo.