Loaʻa i nā pōpō refractory alumina ka maikaʻi o ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe, ka hiki ke abrasion maikaʻi loa, ka mānoanoa puʻupuʻu nui, ka hana wela kiʻekiʻe, ka pale ʻana i ka corrosion, ka liʻiliʻi o ka pollution a me nā waiwai maikaʻi ʻē aʻe. Ua hoʻohana nui ʻia nā pōpō alumina i ka hoʻopau ʻana a me ka hana hohonu ʻana i nā ʻano like ʻole o ka ceramic, enamel, aniani, kemika a me nā mea mānoanoa a paʻakikī.
Na Pono o na Poepoe Refractory Alumina
- Kūleʻa wela kiʻekiʻe
- Pale wela maikaʻi
- Ikaika Mechanical Kiʻekiʻe
- Ola Hana lōʻihi
Ka Hoʻohui ʻana i nā pōpē hoʻomaʻamaʻa alumina
Hana ʻia nā pōpō refractory alumina me AL2O3, kaolin, synthetic aggregate, mullite crystal a me nā mea ʻē aʻe. E like me ke ʻano o ka ʻōwili a me ke ʻano paʻi. ʻO nā pōpō pale alumini ka maikaʻi o ka ikaika kiʻekiʻe, ke kūpaʻa haʻalulu maikaʻi, ka hoʻololi kūpono a me ka hoʻomaʻemaʻe, ke ola lōʻihi a pēlā aku.
Ke Kaʻina Poʻo ʻAlumina Refractory
I mea e hana ai i nā pōpō refractory alumina, ua kau ʻia ka electrode ma lalo o ka crucible graphite, a hiki ke hoʻomaka ke arc ma ka hoʻohui ʻana i kahi nui o ka pauka alumina ʻoihana. Ke hana nei i kēia manawa 1.0kA, ka uila 80 ~ 100V. Ma hope o ka hahau ʻana, e like me Al2O3 i hoʻoheheʻe ʻia, hoʻouka mālie, a hiki i ka hoʻopiha piha ʻana o ka wai me ka graphite crucible, ʻo ka mahana wai mea 2200 ~ 2300 ℃. kahe iwaho.
Nā Kiʻi Huahana ʻAlumina Refractory Balls
| 'ikamu | alumina kiʻekiʻe | Ke kolo haʻahaʻa | Mullite | Corundum |
| Nui (mm) | 40-80 | 40-80 | 40-80 | 40-80 |
| AL2O3(%) | 65 | 70 | 75 | 95 |
| ʻO ka refractoriness ma lalo o ka ukana (°C) | 1450 | 1460 | 1530 | 1650 |
| ʻIke ʻia ka Porosity(%) | 25 | 23 | 22 | 18 |
| ʻOi aku ka nui (g/cm3) | 2.3 | 2.4 | 2.5 | 3.1 |
| ʻO ka ikaika hoʻoheheʻe anuanu (Mpa) | 13 | 14 | 32 | 36 |
| ʻO ke kūpaʻa haʻalulu wela (1100°Cwater cooling) pōʻai ≥ | 15 | 10 | 20 | 7 |
| ʻO ka hoʻomaʻamaʻa (°C) | 1710 | 1750 | 1800 | 1800 |
Hoʻohana ʻana i nā kinipōpō Alumina Refractory
Ua hoʻohana nui ʻia nā pōpō refractory alumina i ka hoʻopau ʻana a me ka hana hohonu ʻana i nā ʻano ceramic, enamel, aniani, kemika a me nā mea mānoanoa a paʻakikī. ʻOi aku ka maikaʻi o nā pōpō refractory alumini i kūpono no ka mea hoʻokaʻawale ea i ka mea hoʻokaʻawale wela a me ke kila blast furnace i hoʻomehana ʻia i ka umu wela e like me ka hoʻopiha ʻana i ka wela.
