Pereti whakarewa uku alumina ātete-mauHe rauemi hiato mahi te mea nei i hangaia mā te hono i te uku alumina parakore-teitei (he ≥92%) te ihirangi Al₂O₃ ki te anga rapa mā te tukanga whakamomona wera. Ka whakakotahi i te pakeketanga teitei o te uku me te kaha ārai pīngore o te rapa, kia pai ai mō te tiaki mata o ngā taputapu ahumahi i raro i ngā āhuatanga pānga nui me te kakahu nui. Ko te pakeketanga o te paparanga uku alumina noa ka eke ki te HRA 85-90, ko te matotoru kei waenga i te 3.6 ki te 3.9 g/cm³, ā, ko tōna ātete kakahu he 10 ki te 15 ngā wā i te ātete o ngā pereti maitai noa.
Ko ngā whakatakotoranga mahi matua ko: te matotoru o te taera uku he 15-30 mm te nuinga, te matotoru o te paparanga rapa he 4-15 mm, me te kaha o te kiri katoa he ≥12 kN/m. Ko te pāmahana whakahaere kei waenga i te -40°C ki te +120°C, me te manawanui wā poto tae atu ki te 150°C. Kei raro iho i te 0.2 te tauwehenga o te waku, e whakaiti ana i te mōrearea piri me te aukati rauemi i te wā e kawe ana. Mā te tukanga whakamomona, ka ārai te hononga matū i te atanga uku-rapa i te wehenga, i te wehewehe rānei, ka roa ake te ora ratonga mā te 3-5 tau ki te whakataurite ki ngā raina maitai manganese tuku iho.
Ko ngā whakamahinga matua ko: ngā pūwāhi whakawhiti o ngā whitiki kawe, ngā awaawa, me ngā hōpu i roto i ngā ahumahi keri me te whakahiato; ngā awaawa whāngai me ngā whare wehewehe i roto i ngā tipu maitai me te sima; me ngā ngongo maturuturu waro i roto i ngā pūnaha whakahaere waro o te tipu hiko. I te wā tāutanga, ka whakapirihia te pereti whakamomona ki te pereti turanga taputapu mā te here makariri, te whakamomona wera rānei, me te kore he whakapiri miihini uaua. Mō ngā rohe kakahu nui, ka taea te whiriwhiri i tētahi hanganga hiato zirconia-toughed (Al₂O₃-ZrO₂), ka whakanui ake i te pakari whati ki te 4.5-5.5 MPa·m¹/², ka ātete atu ki te kino pānga mai i ngā rauemi rahi.
Wā tuku: Mei-11-2026