Hei rauemi ātete-kaha teitei,pereki mullite māmāe tino manakohia ana i roto i ngā mara ahumahi o te ao mō ō rātou ārai wera pai rawa atu, te ātete ki te pāmahana teitei, me ngā āhuatanga mama. I hangaia hei whakatutuki i ngā whakaritenga pakari o ngā taputapu pāmahana teitei, ehara i te mea ka whakaiti noa i te whakapaunga pūngao ēnei pereki engari ka whakaroa hoki i te roa o te mahi o ngā oumu ahumahi, ka waiho hei whiringa pai mō ngā umanga e whai ana i te whai huatanga me te whanaketanga pumau.
Kua whakapūmautia, ā, kua taea te whakarite i ngā whakatakotoranga o ngā pereki mullite māmā kia urutau ki ngā āhuatanga ahumahi rerekē. Ko ngā tauira matua ko JM23, JM25, JM26, JM27, JM28, JM30, me JM32, me te ihirangi alumina mai i te 40% ki te 77% me te ihirangi waikura rino kāore e neke ake i te 1.0% (ki raro ki te 0.5% mō ngā tauira parakore teitei). Ko tōna matotoru papatipu ko 0.55g/cm³ ki te 1.35g/cm³, ā, ko te kaha kuru matao ko 1.0MPa ki te 3.5MPa, e whakarite ana i te mahi pumau i raro i ngā āhuatanga kawenga rerekē. Ko te pāmahana whakarōpūtanga ko 1260℃ ki te 1760℃, ko te pāmahana tīmatanga whakangawari kawenga ko 1080℃ ki te 1570℃, ā, ko te tere huringa raina tuturu i muri i te whakamahana pāmahana teitei ko -1.5% ki te 0.5%. Ko te rahi paerewa ko 230x114x65mm, ā, e wātea ana ngā rahi ritenga kia rite ki ngā hiahia o te kiritaki mō te mahi pereki tuia.
Ko te kawe wera o ngā pereki mullite māmā he iti iho i te 0.18W/(m·K) i te 200℃, ka taea te whakaiti i te ngaronga wera me te whakapai ake i te whakamahinga pūngao—he painga matua i roto i te whakaputanga ahumahi. He mea hanga ēnei pereki ki te alumina me te silica tino parakore, ā, ka hangaia he hanganga tioata mullite pumau, kei roto he iti noa te wāhanga karāhe, te cristobalite, te corundum rānei, e tino whakarei ake ana i tō rātou ātete ki te ru wera me te ātete ki te waikura matū. Ka taea e rātou te pā tika ki ngā mura, ka kore e hiahiatia he paparanga whakamarumaru tāpiri, ā, ka māmā ake te tukanga kohatu.
He whānuitia ngā whakamahinga o ngā pereki mullite māmā, tae atu ki te mahi whakarewa, te uku, te karāhe, te hinu matū me ētahi atu ahumahi. I roto i te ahumahi whakarewa, ka whakamahia ēnei hei whakapuru i ngā oumu wera, ngā tinana me ngā raro o te oumu, me ngā tihi oumu hiko hanga maitai, e kore e taea anake te pupuri i te pāmahana pumau engari ka whakaiti hoki i te whakapaunga pūngao. I roto i te ahumahi uku, he rauemi pai ēnei mō ngā oumu hurihuri, ngā oumu whakawhiti, me ngā oumu tākai, e āhei ai te tere o te whakamahana me te whakamatao me te whakapai ake i te pai o te whakaputa.
I roto i te umanga karāhe, ka whakamahia ēnei ki ngā oumu whakahou oumu rewa karāhe me ngā awa whāngai, ka taea te ātete i ngā pāmahana teitei me te pirau matū hei whakarite i te kounga o te hua. I roto i te umanga hinu matū, ka whakamahia ēnei hei whakapuru i ngā oumu pakaru hinu, ngā oumu hurihanga haukini hangai, me ngā oumu whakapūngao hinu toenga, ka taea te ātete i ngā taiao mahi uaua. Hei tāpiri, ka whakamahia whānuitia ēnei i roto i ngā oumu hiko, ngā oumu tahu ahi, me ngā taputapu tauhohenga pāmahana teitei, e whakarato ana i te whakamarumaru wera pono me te tautoko hanganga.
Ki te whakaritea ki ngā pereki ātete-wai tuku iho, he mārama ngā painga o ngā pereki mullite māmā: ka taea e te iti o te mātotoru te whakaiti i te taumaha o te oumu me te kawenga hanganga, ka taea e te iti o te kawe wera te penapena i te 15%-20% o te wahie, ā, ka taea e te parakore teitei te whakarite i te mahi pumau i roto i ngā āhuarangi uaua. Ahakoa he whakatakotoranga paerewa, he whakatakotoranga ritenga rānei, ka taea e rātou te whakatutuki i ngā hiahia rerekē o ngā ahumahi rerekē. Kōwhiria ā mātou pereki mullite māmā kounga teitei hei āwhina i a koe ki te whakaiti i ngā utu whakahaere, te whakapai ake i te pai o te whakaputa, me te whakatutuki i te whanaketanga matomato me te pumau.
Wā tuku: Paenga-whāwhā-03-2026
