Ko ngā pereki arai uku alumina ātete-kakahu he otinga tiaki matua i hangaia mō ngā taiao kakahu-nui pērā i ngā mira pōro, ngā mira whakaoho, ngā paipa, me ngā awaawa. He rerekē i ngā pereti arai papatahi tuku iho, he kōtaha honohono āwhata ā mātou pereki e tutuki ai te tāutanga raka ā-mīhini mā roto i ngā hononga arero-me-awa tika. Mā tēnei hoahoa ka whakakorea ngā āputa tika i waenga i ngā pereki, ka ārai i te paru me ngā matūriki iti kei pakaru te anga taputapu. He mea nui ake, ka tohatohahia ngā kawenga pānga ā-rohe kia ōrite ki ngā pereki tata, ka whakarei ake i te ātete whānui o te arai ki te pakaru me te ru ā-mīhini. I te whakakotahitanga me ngā piripiri kaha-teitei, ka whakarite te hanganga honohono āwhata kia mau tonu te hononga o te arai ki te papa ahakoa i raro i te hurihanga tere-tiketike, i te wiri nui rānei, ka tukuna he tiaki pumau me te roa.
Mō te mahi a ngā rauemi, he mea hanga ā mātou pereki arai uku alumina mai i te paura α-alumina tino parakore mā te pēhi isostatic me te sintering pāmahana-tino teitei, me te ihirangi alumina mai i te 92% ki te 99% me te taea te whakarite ki ngā āhuatanga mahi motuhake. Hei tauira, ko te pereki alumina 95% e whakamahia whānuitia ana, ko ngā āhuatanga noa ko: te kiato papatipu ≥ 3.65 g/cm³, te mimiti wai < 0.01%, te pakeke Rockwell HRA ≥ 86, te kaha pēhi ≥ 2000 MPa, te kaha piko ≥ 300 MPa, me te pakari whati > 3.5 MPa·m½. I roto i ngā whakamātautau ātete makuku paerewa, he iti ake te ngaronga papatipu i te maitai manganese tikanga, ā, ko te tere kakahu rōrahi he iti iho i te 0.02%. Ehara ēnei tatauranga i te rohe arorau engari he raraunga tirotiro noa iho mai i tā mātou pūnaha whakahaere kounga tino pakari, kia mōhio ai ko ia puranga e tukuna ana he rite tonu te ātete ki te kakahu, te ātete ki te waikura, me te pakari o te pānga, ā, ka iti ake te wā kore mahi me te nui ake o te wātea o ngā taputapu mō ā mātou kiritaki.
I ēnei rā, kua whānuitia te whakamahi i ā mātou pereki arai uku alumina ātete-mau kua honoa, puta noa i te maina, te sima, te whakaputa hiko, ngā uku, me ngā ahumahi matū pai mō ngā momo taputapu huri me te kawe. Ahakoa e manawanui ana ki te horoi kaha o ngā pōro maitai me te paru i roto i te mira huri rino, e manawanui ana ki te tapahi tonu o te paura tere-teitei i ngā tuke kawe hau, e manawanui ana rānei ki te kakahu waikura o ngā paru waikawa i roto i ngā paipa whakamātotoru, e whakaatu ana ēnei pereki hono i te roa o te ora ratonga e nui atu ana i ngā rauemi ātete-mau tuku iho.
Wā tuku: Pipiri-18-2026