I roto i ngā ahumahi e mahi ana i ia rā, ko te pakaru wawe o ngā paipa ehara i te mea he āwangawanga tiaki anake—engari he pānga tika ki te hua. Kua hangaia ā mātou paipa uku ātete-mau o te alumina parakore-teitei hei whakaoti i tēnei wero. Me te ihirangi alumina (Al₂O₃) e neke atu ana i te 95%, ka whakaatuhia e ēnei paipa he pakeke Rockwell o te HRA 85-90, tuarua ki te taimana anake. Ko te tikanga o tēnei pakeketanga nui ko te ātete tino pai ki te pahekeheke me te pānga matūriki, ka roa ake te ora ratonga mā te 5 ki te 10 ngā wā ki te whakataurite ki ngā paipa maitai whakapakeke tuku iho. He mea nui, ko te pakeketanga tino pai e rite ana ki te iti o te mātotoru o te 3.6 g/cm³, ka mama ake te pūnaha paipa uku i ngā momo konganuku kē atu, ā, ka whakaitihia te kawenga hanganga me ngā utu tāutanga me te kore e whakaiti i te roa.
He mea nui te tukanga hanga matatau ki te mahi pai o te paipa. Ka hangaia ia arai mā te pēhi isostatic, mā te tukanga whakaputa pēhanga teitei rānei, ā, ka whai ake ko te tahu tika i roto i te oumu pāmahana teitei i te 1500°C–1700°C. Mā tēnei sintering whakahaere ka puta he hanganga moroiti matotoru, ōrite me te iti o te porosity, ka whakakorea ngā ngoikoretanga ka taea te tīmata i te pakaru. Kātahi ka herea ngā arai uku ki tētahi anga maitai pakari mā te whakamahi i tētahi kapia epoxy kaha-teitei motuhake, ātete-mahana. Ka whakamahia e tēnei hanganga hiato te pakeke o te uku mō te ātete pakaru me te pakari o te maitai mō te tiaki miihini, kia mau ai te mahi pono i raro i ngā āhuatanga o te ru wera me te pānga auau teitei. Ka mau tonu te mata o roto o ā mātou paipa uku i tētahi mutunga maeneene me te taratara tino (uara Ra) iti iho i te 0.4 μm, he āhuatanga nui e whakaiti ana i te ātete waku, e whakatairanga ana i te rere laminar, ā, e whakaiti ana i te whakairi rauemi, e hanga ana i ēnei paipa hei mea nui mō ngā pūnaha kawe hau me te waipēhi.
Ko te whakamahinga o ā mātou paipa uku alumina i te ao tūturu e kapi ana i te whānuitanga o ngā āhuatanga kakahu nui. I roto i ngā tipu hiko waro, koinei te whiringa pono mō ngā raina werohanga waro paura (PCI) me ngā pūnaha kawe hau pungarehu rere, e tere ake ana i te maitai basalt me te maitai mata-mārō mā te nui o te tawhiti. Ko te rāngai keri me te tukatuka kohuke e whakawhirinaki ana ki a rātou mō te kawe i ngā paru matotoru pērā i te rino rino kukū, ngā paru parahi, me te onepu silica, he mea nui te ātete o te paipa ki te kakahu me te waikura matū mai i ngā paru waikawa, kawakore rānei. Hei tāpiri, i roto i ngā ahumahi sima, maitai, me te tongi matū, ka whakarite ēnei paipa i te haere tonu o te mahi i roto i ngā koropiko nui e pāngia ana e te pānga matūriki tere-teitei. Hei whakamutunga, ko te haumi ki ā mātou paipa uku alumina he whakatau rautaki - te whakakapi i te tiaki tauhohe ki te pono matatau, te whakaiti nui i te wā kore mahi i whakaritea, me te tuku i te utu katoa o te mana whakahaere i roto i te huringa ora katoa o te rawa.
Te wā tuku: Hurae-14-2026