Loaʻa i nā pōpō refractory alumina ke ʻano maikaʻi o ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe, ka hiki ke abrasion maikaʻi loa, ka nui o ka nui o ka mānoanoa, ka hana wela kiʻekiʻe, ke kūpaʻa i ka corrosion, ka emi ʻana o ka haumia 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 keramika like ʻole, enamel, aniani, nā kemika a me nā mea mānoanoa a paʻakikī ʻē aʻe.
Nā Waiwai o nā Pōpō Paʻakikī Alumina
- Ke kū'ē ʻana i ka mahana kiʻekiʻe
- Ke kūpaʻa wela maikaʻi
- Ikaika Mechanical Kiʻekiʻe
- Ola lawelawe lōʻihi
ʻO ka haku mele ʻana o nā pōpō refractory Alumina
Hana ʻia nā pōpō refractory alumina me AL2O3, kaolin, synthetic aggregate, mullite crystal a me nā mea ʻē aʻe. Wahi a ke ʻano o ka ʻōwili a me ke kaomi ʻana, loaʻa i nā pōpō refractory alumini nā pono o ka ikaika kiʻekiʻe, ke kūpaʻa haʻalulu wela maikaʻi, ka hoʻololi kūpono a me ka hoʻomaʻemaʻe, ke ola lawelawe lōʻihi a pēlā aku.
Kaʻina Hana Pōpō Paʻakikī Alumina
I mea e hana ai i nā pōpō refractory alumina, ua kau ʻia ka electrode ma lalo o ka ipu hoʻoheheʻe graphite, a hiki ke hoʻomaka i ke arc ma ka hoʻohui ʻana i kahi nui o ka pauka alumina ʻoihana. ʻO ke au hana he 1.0kA, ka uila 80 ~ 100V. Ma hope o ke kuʻi ʻana, e like me Al2O3 i hoʻoheheʻe ʻia, e hoʻouka mālie ana, a hiki i ka wai o ka mea i hoʻopiha ʻia me ka ipu hoʻoheheʻe graphite, ʻo ka mahana o ka wai o ka mea he 2200 ~ 2300 ℃. Ma hope o kēlā, ua ninini ʻia ka ipu hoʻoheheʻe a kahe i waho ka hopena.
Nā kikoʻī huahana o nā pōpō paʻakikī Alumina
| Mea | ʻO ka alumina kiʻekiʻe | Ke kolo haʻahaʻa | Mullite | Korundum |
| Ka nui (mm) | 40-80 | 40-80 | 40-80 | 40-80 |
| AL2O3(%) | 65 | 70 | 75 | 95 |
| ʻO ke kūpaʻa ʻole ma lalo o ka ukana (° C) | 1450 | 1460 | 1530 | 1650 |
| Ka Porosity i ʻike ʻia (%) | 25 | 23 | 22 | 18 |
| Ka nui o ka nui (g/cm3) | 2.3 | 2.4 | 2.5 | 3.1 |
| Ikaika hoʻowali anu (Mpa) | 13 | 14 | 32 | 36 |
| Ke kū'ē ʻana i ka haʻalulu wela (1100°C ka hoʻoluʻu wai) pōʻaiapuni ≥ | 15 | 10 | 20 | 7 |
| Ka paʻakikī o ke kūpaʻa (°C) | 1710 | 1750 | 1800 | 1800 |
Ka hoʻohana ʻana o nā pōpō refractory Alumina
Ua hoʻohana nui ʻia nā pōpō refractory alumina i ka hoʻopau ʻana a me ka hana hohonu ʻana i nā ʻano keramika like ʻole, enamel, aniani, nā kemika a me nā mea mānoanoa a paʻakikī ʻē aʻe. ʻOi loa nā pōpō refractory aluminika i kūpono no ka mea hoʻokaʻawale ea ea a me ka umu hoʻomehana kinoea hao e like me ka mea hoʻopiha mālama wela
