Ka taea te whakaputa i te Alumina, te Konumohe Waikura rānei, i roto i ngā momo parakore. Ko ngā momo paerewa e whakamahia ana mō ngā mahi ahumahi hou ko te 99.5% ki te 99.9% me ngā tāpiringa kua hangaia hei whakarei ake i ngā āhuatanga. He whānuitanga o ngā tikanga tukatuka uku ka taea te whakamahi tae atu ki te miihini, te hanga āhua kupenga rānei hei whakaputa i ngā momo rahi me ngā āhua o te wāhanga.
Ko ngā painga o ngā uku Al2O3 e whai ake nei:
1. He tino pakeke (he 9 te pakeke o te MOHS) ā, he pai te ātete ki te kakahu.
2. He kaha ā-mīhini pai. Ka taea e tōna kaha piko te tae ki te 300~500MPa.
3. He ātete wera tino pai. Ka taea e tōna pāmahana mahi tonu te eke ki te 1000℃.
4. He ātete teitei, he pai hoki ngā āhuatanga whakamarumaru hiko. Ina koa he pai rawa te whakamarumaru pāmahana teitei (ko te ātete pāmahana rūma he 1015Ω•cm) me te ātete pakaru hiko (ko te kaha whakamarumaru he 15kV/mm).
5. He pai te pumau matū. Kāore e tauhohe ki te waikawa whanariki, te waikawa hauwaiora, te waikawa hauota me te waikawa hauwaiwhaoriki.
6. Ātete ki te waikura i te pāmahana teitei. Ka pai ake te ātete ki te pirau o ngā konganuku rewa pēnei i te Be, Sr, Ni, Al, V, Ta, Mn, Fe me te Co.
Nō reira, e whakamahia whānuitia ana ngā uku alumina i roto i ngā mara ahumahi hou. E whakamahia whānuitia ana i roto i te umanga hanga haurua-ira, te umanga hikohiko, te umanga mīhini, te taiao pāmahana teitei, te umanga matū, te umanga māmā, te kakahu me ētahi atu mara.
He rauemi uku te Alumina e whakamahia whānuitia ana i roto i ngā mahi e whai ake nei:
✔ ngā ārai hiko, ngā wāhanga ātete-waikura mō ngā taiaho hau, mō ngā taputapu tukatuka haurua-ira (pēnei i te pūwero, te pūwhakaputa pito, te mowhiti hiri)
✔ ngā ārai hiko mō ngā ngongo irahiko.
✔ ngā wāhanga hanganga mō ngā taputapu korehau-teitei me ngā taputapu cryogenic, ngā taputapu irahiko karihi, ngā taputapu e whakamahia ana i te pāmahana teitei.
✔ ngā wāhanga ātete-waikura, te piston mō ngā papu, ngā takirere me ngā pūnaha inenga, ngā takirere toto tauira.
✔ ngā ngongo werawera, ngā ārai hiko, ngā mea huri, ngā kaiārahi miro.
Wā tuku: Hurae-14-2023