High Alumina Cib yog hom khoom siv refractory, thiab nws lub ntsiab sib xyaw yog al2o3.
If the Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, the standards of various countries are not completely consistent. For example, European countries have set a minimum Al2O3 content of 42% for high alumina refractory materials. In China, the Al2O3 content in high alumina bricks is usually divided into three grades: Grade I - Al2O3 content>75%; Qib II - Al2o3 cov ntsiab lus ntawm {4}}%; Qib III - AL2O3 cov ntsiab lus ntawm {8}}%
Aluminium cov khoom lag luam reliated nrog cov ntsiab lus ntawm Al2O3 siab dua 48%.
Ib qho nruab nrab refractory cov khoom siv nrog cov alumina cov ntsiab lus ntawm tshaj 48%. Ua los ntawm cov ntaub ntawv raw nrog cov ntsiab lus zoo siab, xws li bauxite, dhau los ntawm kev molding thiab regrination. Siab siab thermal ruaj khov, nrog hluav taws kub tiv thaiv dhau 1770 degree. Zoo slag Kuj, siv rau hauv ob sab laj cov tshuab hluav taws xob, iav melting rauv, xis mas teb rauv taws, thiab lwm yam.
High alumina cib feem ntau yog siv rau hauv ob sab shling rhuab Tsis tas li ntawd, High Alumina cov cib yog dav siv los ua cov chaw sib tw uas rov qab qhib lub tshuab Tab sis tus nqi ntawm siab alumina cib yog siab tshaj li ntawm av nplaum cib uas tsis tas yuav siv cov av siab uas muaj cov kab ke muaj peev xwm ua tau raws li cov cai.
Tus yam ntxwv
a, rawv
Qhov hluav taws kub tiv thaiv ntau dua Alumina cov cib yog siab dua li cov pob zeb av nplaum thiab semi briccs, mus txog 1750-1790 degree, thiab belongs rau cov ntaub ntawv refractory prichst.
b, refirechiness nyob rau hauv thauj
Vim yog cov ntsiab lus Al2O3 thiab cov khoom siv los txawv tsis muaj txiaj ntsig zoo me me, cov khoom siv tau yooj yim me ntsis yog siab tshaj qhov av nplaum. Txawm li cas los xij, txij li mullite muaju tsis ua tus qauv network, lub load soften kub yog tseem tsis tau li ntawm cov pob zeb Silica silica.
C, Seem tiv
High alumina cib muaj ntau Al2o3, uas yog ze rau cov ntaub ntawv nruab nrab thiab tuaj yeem tiv thaiv cov yaig ntawm acidic thiab alkaline slag. Vim muaj cov Sio2, lub peev xwm los tawm tsam Alkaline Slag yog tsis muaj zog tshaj li ntawm acid resistant sluran.
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