I roto i te ao o ngā mahi ahumahi pāmahana teitei, he mea nui te whakamarumaru wera me te pumau o te hanganga, ā, he pānga tika ēnei ki te whai huatanga, te haumaru, me te whai huatanga o te utu.Pereki pōro kōhao arumina (AHB) kua puta hei otinga whakarerekētanga kēmu, e huri ana i te huarahi e aro atu ai ngā ahumahi ki ngā wero wera nui. He mea hanga mai i te alumina parakore teitei (Al₂O₃) mā roto i ngā tukanga rewa me te whakapūmau matatau, ka whakakotahihia e ēnei pereki te ātete wera tino pai, te kawe wera iti, me te kaha miihini whakamiharo—he mea nui mō te whānuitanga o ngā tono ahumahi. Ahakoa kei te whakahaere koe i te oumu sima, i te oumu karāhe, i te tauhohenga matū hinu rānei, ka tukuna e te AHB he mahi tino pai e hua mai ana ki te whakaiti i te whakapaunga pūngao, te roa o te ora o ngā taputapu, me te whakapakari ake i te pono o te mahi.
Ngā Āhuatanga Matua: He aha i Tūwhera ai ngā Pereki Pōro Kowhao Alumini
Ko te mahi pai rawa atu o ngā pereki poroporo kōhao alumina i ahu mai i tōna hanganga ahurei me te hanganga parakore teitei. Me te nui o te alumina e neke atu ana i te 99%, he tino pai te pumau o ēnei pereki i te pāmahana teitei, e mau tonu ana tōna āhua ahakoa i ngā pāmahana tae atu ki te 1800°C (3272°F)—he nui atu i ngā rauemi ātete-wera tuku iho pērā i te fireclay, i ngā pereki silica rānei. Ko tō rātou hanganga porowhita kōhao te mea nui ki ō rātou kaha whakamarumaru tino pai: ko ngā pute hau kua kati i roto i ia pōro ka whakaiti i te whakawhiti wera mā te kawe me te convection, ka hua ake he kawe wera iti iho i te 0.4-0.8 W/(m·K) i te 1000°C. Ko te tikanga o tēnei he penapena pūngao nui, nā te mea he iti ake te wera e ngaro ana i roto i ngā pakitara oumu, ka whakaiti i te whakapaunga wahie me ngā utu whakahaere.
Haunga te ārai wera, e whakamanamana ana a AHB ki te kaha miihini me te ātete ki te kakahu. Ko tōna hanganga matotoru, ōrite hoki e ārai ana i te ru wera, te pakū, me te waikura matū mai i ngā konganuku rewa, ngā para, me ngā hau ahumahi. Kāore i rite ki ngā rauemi ārai wera e pirau ana i te roanga o te wā, ka mau tonu te āhua me te mahi o ngā pereki porowhita konumohe ahakoa i raro i te whakamahana me te whakamatao huringa, ka whakaiti i te auau tiaki me te wā kore mahi. Hei tāpiri, ko tōna matotoru iti (1.2-1.6 g/cm³) ka whakangawari i te tāutanga me te whakaiti i te kawenga hanganga ki runga i ngā taputapu, me te kore e whakararu i te roa.
Ngā Whakamahinga Matua: Te Wāhi e Hiranga ai ngā Pereki Pōro Ārai Alumina
He maha ngā whakamahinga o ngā pereki poro kōhao konumohe hei whakatutuki i ngā hiahia o ngā ahumahi pāmahana teitei. Anei ngā whakamahinga tino whai hua:
1. Te Ahumahi Sima me te Raima
Ka mahi ngā oumu hurihuri sima i ngā pāmahana neke atu i te 1400°C, me ngā rauemi whakamahana e kaha ana ki te tu atu i te wera nui me te ahotea miihini. Ka whakamahia te AHB i roto i te arai oumu, i ngā pourewa whakamahana, me ngā pouaka whakamatao kirikini, ka whakaiti i te ngaronga wera tae atu ki te 30% ki te whakataurite ki ngā oumu wera tuku iho. Ehara i te mea ka whakaiti noa i ngā utu wahie engari ka roa ake te ora o te oumu mā te whakaiti i te kino o te ru wera.
2. Te Hanga Karāhe
Me whakahaere tika te pāmahana o ngā oumu whakarewa karāhe, me te pumau mō te wā roa. Ka whakarārangihia e te AHB te karauna o te oumu, ngā taha taha, me ngā kaiwhakaora, ka whakarato i te whakamarumaru pai e pupuri ana i ngā pāmahana whakarewa ōrite. Ko tōna ātete ki te waikura kawakore (mai i ngā rauemi puranga karāhe) ka whakarite kia iti te pakaru, ka whakaiti i te hiahia mō ngā whakatikatika auau, ā, ka whakapai ake i te pai o te whakaputa.
3. Te Ahumahi Matū me te Hinu
I roto i ngā tauhohenga matū hinu, ngā kaiwhakahou, me ngā waeine pakaru, ka tu atu a AHB i ngā pāmahana tae atu ki te 1700°C, ā, ka ātete hoki ki te waikura mai i ngā warowaihā, ngā waikawa, me ngā whakakorikori. Ka whakamahia hei whakapuru i ngā paipa pāmahana-tiketike, ngā rūma oumu, me ngā whakawhiti wera, kia mau ai te haumaru me te whai hua o te mahi me te whakaiti i te moumou pūngao.
4. Ahumahi Whakarewa
Ka whai hua ngā oumu hiko pewa hanga rino, ngā oumu pahū, me ngā mīhini whakarewa konganuku kore-ferrous i te ātete pāmahana teitei me te whakamarumaru o te AHB. Ka whakamahia ki roto i te arai oumu, ngā koko, me ngā rihi tunu, ka whakaiti i te ngaronga wera i te wā e whakarewa ana me te mahi whakarewa. Nā tōna kaha ki te ātete i ngā tauhiuhi konganuku rewa me te horo o te para, he whiringa pono tēnei mō ngā taiao whakarewa kino.
5. Ahumahi Uku me te Ārai
E whakamahia ana te AHB i roto i te hanga oumu uku pāmahana-tiketike me ngā hua ātete-wera. He rauemi whakamahana matua tēnei i roto i ngā arai oumu, e āhei ai te whakahaere tika i te pāmahana i te wā e tahuna ana. Ko tōna kawe wera iti ka whakaiti i te ngaronga wera, ka whakapai ake i te whai huatanga o te pūngao i roto i te hanga uku.
He aha koe i whiriwhiri ai i ngā pereki poro kōhao o te Alumina mō tāu mahi?
He painga nui te haumi ki ngā pereki pōro kōhao alumina mō ngā kaiwhakahaere ahumahi:
Te Whai Hua o te Pūngao:Whakaitihia te whakapaunga wahie mā te 20-40% nā te pai o te whakamarumaru, te whakaiti i ngā utu whakahaere me ngā tukunga waro.
Te roa o te ora:Mā te roa o te ora ratonga (e 2-3 ngā wā roa atu i ngā pūwero tahu tuku iho) ka whakaitihia te wā kore mahi me ngā utu whakakapinga.
Te Pūmautanga o te Wera:Ka ātete ki ngā pāmahana tino kino me te ru wera, kia mau tonu ai te mahi i roto i ngā taiao whakamahana hurihuri.
Ātete ki te Waikura:Ka ātete ki te whakaekenga matū mai i ngā para, ngā hau, me ngā rauemi rewa, ka whakaiti i ngā hiahia tiaki.
Ngā mahi maha:He pai mō ngā momo whakamahinga pāmahana teitei, he otinga ngāwari mō ngā momo ahumahi.
Whakamutunga: Whakarei ake i tō mahi ahumahi me ngā pereki poro kōhao Alumina
I roto i te ao ahumahi whakataetae o ēnei rā, he mea nui te arotau i te pai o te pūngao me te whakaiti i ngā utu whakahaere mō te angitu. Ka tutuki ngā mahi a ngā pereki pōro kōhao Alumina i ngā taha e rua, me te whakakotahi i te whakamarumaru pāmahana teitei, te pakari, me te whānui o te whakamahinga hei whakatutuki i ngā wero ahumahi tino uaua. Ahakoa kei te rapu koe ki te whakapai ake i te mahi oumu, ki te whakaroa i te roa o te ora o ngā taputapu, ki te tapahi rānei i ngā whakapaunga pūngao, ko AHB te otinga pono, whai hua hoki e akiaki ana i te hiranga o te mahi.
Kōwhiria he pereki pōro kōhao alumina mō āu tono pāmahana teitei, ā, ka wheako i te rerekētanga o te whai huatanga, te pono, me te hua. Mahi tahi me tētahi kaiwhakarato pono ki te tiki i ngā otinga ritenga e hāngai ana ki ō hiahia motuhake—me mahi i te taahiraa tuatahi ki tētahi mahi whai hua ake, pumau ake hoki i tēnei rā.
Wā tuku: Whiringa-ā-rangi 24-2025
