ʻO ka alumina silica ahi pōhaku kahi ʻano o ka alumina silica refractory mea, ʻo ka alumina silicate refractory brick he mau hiʻohiʻona o ka refractoriness kiʻekiʻe, ke kūpaʻa maikaʻi a me ka ikaika kiʻekiʻe. ʻO ka alumini silicate refractory brick he nui nā ʻano mea ahi e like me ka silica brick, fireclay brick, High alumina brick, mullite brick a me corundum Brick. Hiki ke hoʻohana ʻia nā pōhaku ahi alumina silica no nā ʻano mea wela.
Hoʻokaʻawale ʻia ʻo Alumina Silica Fire Brick
E like me ke kauoha o ka hoʻonui ʻana i ka ʻike mai SiO2 a i Al2O3, ua hoʻokaʻawale ʻia nā pōhaku ahi silikon alumini i nā ʻāpana aʻe.
Silica brick: ʻoi aku ka nui o ka SiO2 ma mua o 93%,
Pilikia pālolo: ʻo ka ʻike o Al2O3 he 30% -48%,
Pilikia alumina kiʻekiʻe: ʻoi aku ka nui o ka Al2O3 ma mua o 48%,
Mullite brick: ʻoi aku ka nui o ka ʻike o Al2O3 ma mua o 72%, a ʻoi aku ka nui o ka SiO2 ma mua o 28%,
Pilikia Corundum: ʻoi aku ka nui o Al2O3 ma mua o 90%.
Hoʻohana ʻia ʻo Alumina Silica Fire Brick
Hoʻohana nui ʻia ka silica brick no ke kūkulu ʻana i ka umu coke, kiln aniani, kiln ceramic, carbon calcinations furnace a ʻaʻole kūpono e hoʻohana ʻia i nā mea hoʻomehana me ka piʻi ʻana o ka mahana ma lalo o 600 ℃.
Hoʻohana mau ʻia nā pōhaku lepo i loko o ka umu ahi, ka mea hoʻoheheʻe wela, ka umu hoʻomehana, ka paila mana, ka lime kiln, ka kiln rotary, ka kiln ceramic a me ka kiln calcining.
Hoʻohana nui ʻia nā brick alumina kiʻekiʻe i ka hana kila, ʻoihana metala non-ferrous a me nā ʻoihana ʻē aʻe.
Hoʻohana ʻia ʻo Mullite brick i nā ʻano ʻano umu ahi wela wela a me ke kapa hope i ka ʻoihana metallurgical, ʻoihana petrochemical, ʻoihana hale kūkulu, ʻoihana seramika, a me nā ʻoihana mīkini.
Hiki ke hoʻohana ʻia nā pōhaku corundum i ka umu ahi, ka umu wela wela, ka umu aniani a me nā mea ʻē aʻe.
Nā hiʻohiʻona piliki ahi alumina silica
- ʻO ka refractoriness kiʻekiʻe,
- Kūleʻa haʻalulu wela maikaʻi,
- ʻO ke kūpaʻa ʻana o ka ʻakika ikaika,
- ikaika wela kiʻekiʻe,
- Haʻahaʻa hoʻonui hoʻonui wela,
- Kiʻekiʻe thermal conductivity.
Nā kikoʻī
| 'ikamu | RSAS60 | RSAS70 | RSAS75 | RSAS80 |
| AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥80 |
| SIO2(%) | 32 | 22 | 20 | ≥18 |
| Fe2O3(%) | ≤1.7 | ≤1.8 | ≤1.8 | ≤1.8 |
| Hoʻomaʻamaʻa °C | 1790 | >1800 | >1825 | ≥1850 |
| ʻAno nui, g/cm3 | 2.4 | 2.45-2.5 | 2.55-2.6 | 2.65-2.7 |
| ʻO ka mahana palupalu ma lalo o ka ukana | ≥1470 | ≥1520 | ≥1530 | ≥1550 |
| ʻIke ʻia ka porosity,% | 22 | <22 | <21 | 20 |
| Puanu ikaika Mpa | ≥45 | ≥50 | ≥54 | ≥60 |
Mea Hana Piliki Ahi Alumina Silica
ʻO RS refractory mea hana ma ke ʻano kekahi o ka mea hana kiln refractory bricks koʻikoʻi i ka ʻoki ʻana a me ka hoʻohua ʻana i nā brick refractory e like me ka koi o ka mea kūʻai aku, hiki iā ia ke hana i nā pōhaku ahi alumina silica kiʻekiʻe no ʻoe.
