I roto i ngā mara o te keri maina, te sima, te whakaputa hiko, me te miihini mīhini taumaha, ko te pakaru me te haehae o ngā wāhanga taputapu ka arahi tika ki te whakahekenga o te pai o te whakaputa me te pikinga o ngā utu tiaki. Hei otinga ārai-kakahu mahi teitei, ka roa ake te roa o te ratonga o ngā taputapu mā te hoahoa hanganga hiato o te arai uku alumina ātete-kakahu. He mea hanga mai i te alumina parakore teitei (Al₂O₃) me te ihirangi ≥92%, ka whakakorikoria ēnei arai mā te whakamahi i te tukanga pēhi maroke pāmahana teitei, ka hua ake he kiato teitei me te hanganga moroiti ōrite.
Ko te hangarau matua o tēnei hua kei roto i tōna hoahoa mata āhua "pōro" me te "pūpū" me ōna āhuatanga ā-tinana pono. Mā te hanganga pōro ka whakanui ake i te pēhanga whakapā i waenganui i te rauemi me te mata o te arai, ka āwhina i te pakaru i te kiriata hau i waenganui i te rauemi me te pakitara i roto i ngā pūnaha kawe, i ngā pūnaha rere rānei, ā, ka whakapai ake i te rere o te rauemi me te aukati i te piri. Mō ngā raraunga mahi, ko te 92% o te uku alumina ka eke ki te pakeke Rockwell (HRA) neke atu i te 80, he mātotoru ≥3.6 g/cm³, ā, ko tōna ātete kakahu he 15 ngā wā, he nui ake rānei i te maitai konupora-nui tuku iho. Hei tāpiri, he pai rawa te ātete pāmahana teitei me te ātete waikura o ngā rauemi uku alumina-nui, e āhei ai rātou ki te urutau ki ngā āhuatanga mahi ahumahi uaua.
I roto i ngā tono motuhake i roto i ngā taputapu hangarau, he whānuitia te whakamahinga o ngā arai rua mō te whakaroa o te pūrakau i roto i ngā kaikawe whitiki, ngā awaawa, ngā hōpu, me ngā arai mira. Ka pā tika te tukanga tāutanga ki te pānga tiaki; ko ngā mahi matua ko: te pupuhi onepu i te mata o te turanga (te whakatutuki i te ma ISO Sa2.5), te whakamahi ōrite i te piri polymer e rua-wāhanga (te whakahaere i te matotoru ki te 1-2mm), me te herea whakarara o ngā arai kia pai ai te tohatoha o te ahotea. Nā te mea he maha ngā wā i hangaia ai te taha o muri me ngā awaawa, ngā mokowā rānei, ka hangaia e ngā arai rua he raka miihini me te piri, ka kaha ake te ātete ki te wehenga i raro i te pānga rauemi tere-teitei.
Hei whakarāpopototanga, ko te whakamahinga ongā arai whakarara uku alumina ātete-kakahuHe kōwhiringa ōhanga, pono hoki tēnei mō te tiaki i ngā taputapu hangarau mō te wā roa. Ehara i te mea ka ātete noa i te pakaru o ngā rauemi nā te pakeketanga teitei, engari ka whakarei ake hoki i te mahi mā te whakapai ake i te āhua o te mata. Mō ngā umanga e rapu ana i te pumau o te mahi me te whakaiti i ngā utu whakahaere whānui, ko te whiriwhiri i ngā hua mai i ngā kaihanga rongonui e tutuki ana i ngā whakaritenga hangarau (pēnei i te ihirangi Al₂O₃, te pakeketanga, me te mimiti wai) me te piri ki ngā tikanga tāutanga paerewa he mea nui hei whakarite i te tiaki pakarutanga whai hua.
Wā tuku: Maehe-21-2026