I roto i te ao o ngā mahi ahumahi pāmahana teitei, kāore e taea te tautohetohe i te hiahia mō ngā rauemi pakari, ātete wera. Mai i ngā oumu hanga maitai ki ngā oumu sima, me tiaki pono ngā taputapu e pāngia ana e te pāmahana tino nui, te horo matū, me te pakaru miihini kia pai ai te mahi me te roa o te wā. Koinei te wāhi e hiahiatia anakōrunuma ka taea te whakarewaHe rauemi tino rerekē tēnei e tū ana, e tuku ana i te mahi tino pai e tutuki ana i ngā paerewa ahumahi tino pakari.
Ko te kōrundum whakarewa he rauemi ātete-waikura i hangaia i te kōrundum (te waikura konumohe, Al₂O₃) hei whakakotahitanga me te hanganga, me ngā here me ngā tāpiringa kounga teitei. Ko ōna āhuatanga tino pai i ahu mai i ngā āhuatanga tūturu o te kōrundum, e whakamanamana ana ki te ira rewa neke atu i te 2000°C, te pumau wera pai rawa atu, me te kaha miihini pai rawa atu. He rerekē ki ngā rauemi ātete-waikura tuku iho, he ranunga ahurei o te ngāwari me te roa o te whakarewa korundum whakarewa—nā tōna āhua ringihanga ka taea te tāuta ngāwari ki ngā āhua me ngā hanganga uaua, ko tōna hanganga matotoru ka ātete ki te pakaru, te pakū, me te whakaeke matū mai i ngā para, ngā waikawa, me ngā kawakore.
Ko tētahi o ngā painga matua o te whakarewa korunamu ko tōna whānui o ngā mahi puta noa i ngā ahumahi. I roto i te umanga maitai, he whānuitia te whakamahinga i roto i ngā koko, ngā tuna, me ngā arai oumu pupuhi, e ātete ana ki ngā pāmahana maitai rewa me ngā tauhohenga para kaha. Ka whakawhirinaki ngā kaihanga maitai ki te whakarewa korunamu hei whakaiti i te wā kore mahi i puta mai i te pakaru o ngā rauemi, nā te mea he roa te ora ratonga ka iti ake ngā huringa tiaki me ngā utu whakahaere iti iho. Mō te umanga sima, ka whakamahia te whakarewa korunamu ki ngā rohe whakawhiti oumu sima me ngā awa hau tuatoru, e manawanui ana ki ngā pāmahana teitei me te clinker sima koi. Ko tōna ātete ki te ru wera ka whakarite kia noho tonu te rauemi ahakoa ngā huringa pāmahana tere, he wero noa i roto i te hanga sima.
Haunga te maitai me te sima, he tino pai te whakarewa korunamu i roto i te mahi whakarewa kore-ferrous, te hanga karāhe, me ngā whare tahu para. I roto i te whakarewa kore-ferrous (hei tauira, te parahi, te konumohe), ka ātete ki te waikura mai i ngā konganuku rewa me ngā rerenga wai, ka tiaki i ngā taputapu nui pēnei i ngā oumu whakarewa me ngā ipu whakarewa. Ka whakamahia e ngā wheketere karāhe te whakarewa korunamu i roto i ngā mīhini whakahou me ngā putanga oumu, ka mau tonu te hanganga i raro i te wera nui me te pānga matū tonu mai i te rewa karāhe. Ka whai hua ngā whare tahu para nā tōna ātete ki ngā hau paitini me te pakaru pungarehu, ka roa ake te roa o te ora o ngā arai o te oumu me te whakaiti i ngā mōrearea taiao.
Ko tētahi atu āhuatanga whakamīharo o te kōrundum whakarewa ko tōna mahi whakarite. Ka taea e ngā kaihanga te whakarite i te hanganga o te kōrundum (hei tauira, te kōrundum mā, te kōrundum parauri, te kōrundum ripanga) me ngā tāpiringa hei whakarite i te rauemi ki ngā hiahia tono motuhake. Hei tauira, ko te kōrundum whakarewa-konumohe teitei (te ihirangi Al₂O₃ ≥ 90%) ka tuku i te ātete wera nui ake mō ngā taiao pāmahana tino-tiketike, ko ngā hanganga sima-iti, sima-iti rawa rānei ka whakapai ake i te mātotoru me te whakaiti i te porosity, ka whakaiti i te urunga para. Hei tāpiri, ko ngā kōwhiringa kōrundum whakarewa-māmā ka whakarato i te whakamarumaru wera me te kore e whakararu i te kaha miihini, he mea pai mō ngā hoahoa ahumahi penapena pūngao.
I te wā e whiriwhiri ana i te korundum whakarewa, he mea nui kia mahi tahi me tētahi kaiwhakarato rongonui e piri ana ki ngā paerewa kounga o te ao (hei tauira, ISO, ASTM). Ka tirotirohia te kounga o te korundum whakarewa kounga teitei, kia mau ai te mahi pumau, te hanganga matū pumau, me ngā āhuatanga tāutanga pono. Ka taea hoki e ngā kaiwhakarato whai mātauranga hangarau te whakarato tautoko i te papaanga, tae atu ki te aratohu whiriwhiri rauemi, ngā tohutohu whakaranu, me ngā tohutohu tiaki i muri i te tāutanga, kia nui ake ai te uara o tō haumitanga.
I roto i te ao ahumahi whakataetae o ēnei rā, ko te whakaiti i te wā kore mahi, te whakaiti i ngā utu tiaki, me te whakapai ake i te whai huatanga o te mahi ngā mea matua. Ka tukuna e te Corundum castable ngā mahi katoa, ka tukuna he otinga utu-whai hua, roa-te-roa mō ngā tono pāmahana teitei. Nā tōna ātete wera, te ātete waikura, me te maha o ngā whakamahinga ka waiho hei rauemi whiriwhiri mā ngā ahumahi e rapu ana ki te whakarei ake i te hua me te pono.
Ahakoa kei te whakahaere koe i tētahi mira maitai, i tētahi wheketere sima, i tētahi wheketere karāhe, i tētahi whare tahu para rānei, ka taea e te whakarewa korundum te whakarerekē i ō mahi pāmahana teitei. Hokohoko ki tētahi whakarewa korundum kounga i tēnei rā, kia kite ai koe i te rerekētanga o te mahi a ngā taputapu, te roa o te ora, me ngā hua hua. Whakapā atu ki tā mātou tīma o ngā tohunga ātete ahi ki te ako atu mō ā mātou otinga whakarewa korundum ritenga, me te mahi i te taahiraa tuatahi ki te arotau i ō tukanga ahumahi.
Wā tuku: Whiringa-ā-rangi 14-2025
