Hoʻokumu ʻia nā pōhaku lepo alumina kiʻekiʻe me ka chamotte bauxite koho ma ke ʻano he kumu kumu, puhi ʻia ma 1450-1470 ° C ma ke kaʻina holomua me ka mana koʻikoʻi. Hana ʻia ʻo High Alumina Fire Bricks me ka alumina a i ʻole nā mea waiwai ʻē aʻe i loaʻa ka ʻike alumina kiʻekiʻe ma o ka hana ʻana a me ke puhi ʻana. ma muli o kona kūʻokoʻa refractory waiwai alumina refractory hiki ke pale i ka ʻakika slag erosion kū'ē.
Kaʻina Pilikia Alumina Kiʻekiʻe
E hele ma o Select a kānana i ka chamotte no ka hoʻopau ʻana ma mua o ka haki ʻana, hiki ke hoʻomaikaʻi i ka maikaʻi o nā pōhaku alumina kiʻekiʻe. No ka mea, ʻoi aku ka kiʻekiʻe o ka grog i nā meaʻai hiki ke hiki i 90-95%. E koho a nānā i ka deironing ma mua o ka ʻoki ʻia ʻana o ka grog.
Ekolu Papa Pilikia Alumina Kiekie
E like me Al2O3 maʻiʻo, High alumina bricks hiki ke hoʻokaʻawale 'ia i loko o Ekolu Papa ma Kina.
'Oi aku ka nui o ka 75% o Al2O3 i ka Papa I.
He 60 ~ 75% Al2O3 maʻiʻo Al2O3 kiʻekiʻe.
He 48 ~ 60% Al2O3 maʻiʻo Al2O3 kiʻekiʻe.
Nā hiʻohiʻona o ka High Alumina Brick
Loaʻa nā hiʻohiʻona maikaʻi e like me ke kiʻekiʻe alumina brick e like me ke kiʻekiʻe o ka hana wela, ka corrosion nui a me ke kūpaʻa ʻana, ke kiʻekiʻe kiʻekiʻe nui, ka haʻahaʻa haʻahaʻa hao, etc.
| Nā mea | Piliki alumina kiʻekiʻe papa mua | Piliki alumina kiʻekiʻe papa ʻelua | Pilikia alumina kiʻekiʻe ʻekolu | Pilikia alumina kūlana kiʻekiʻe kūikawā |
| LZ-75 | LZ-65 | LZ-55 | LZ-80 | |
| Al2O3 % ≥ | 75 | 65 | 55 | 82 |
| Fe2O3 % ≤ | 2.5 | 2.5 | 2.6 | 2.0 |
| ʻAiʻa nui g/cm3 | 2.5 | 2.4 | 2.3 | 2.6 |
| Ka ikaika hoʻoemi anu MPa ≥ | 70 | 60 | 50 | 80 |
| 0.2MPa Refractoriness Ma lalo o ka ukana ℃ | 1510 | 1460 | 1420 | 1550 |
| Refractoriness ℃ ≥ | 1790 | 1770 | 1770 | 1790 |
| ʻIkepili Porosity % ≤ | 22 | 23 | 24 | 21 |
| Hoʻomaʻamaʻa hou i ka hoʻololi laina 1450 ℃×2h % | -0.3 | -0.4 | -0.4 | -0.2 |
Hoʻohana Brick Alumina Kiʻekiʻe
Hiki ke hoʻohana ʻia nā pōhaku lepo alumina kiʻekiʻe i ka umu ahi, ka umu wela wela, ka umu uila. ʻO nā pōhaku ahi alumina kiʻekiʻe hoʻi i hoʻohana ʻia i nā kula o ka hao a me ke kila, nonferrous, aniani, sima, keramika, petrochemical, mīkini, paila, ʻoihana māmā, mana, a me nā ʻoihana koa etc.
