He maha ngā wā ka waikura, ka memeha, ka pakaru te mata hiri o te takirere e te reo, nō reira he wāhanga ngāwari te pakaru o te takirere. Pērā i te takirere pōro hau me te takirere pūrerehua hiko me ētahi atu takirere aunoa, nā te whakatuwheratanga me te kati pinepine me te tere, ka pāngia tika te kounga me te roa o te mahi. Ko te whakaritenga matua o te mata hiri takirere ko te whakarite kia haumaru, kia pono hoki te hiri i raro i ngā tikanga mahi kua tohua. Nō reira, me whai i ngā āhuatanga e whai ake nei te rauemi o te mata:
(1) He pai te mahi hiri, arā, me āhei te mata hiri ki te ārai i te turuturu o te reo;
(2) He kaha motuhake, me kaha te mata hiri ki te tu atu i te uara pēhanga motuhake o te hiri i hangaia e te rerekētanga pēhanga reo;
(3) Ātete ki te waikura, i raro i te ratonga roa o te reo waikura me te ahotea, me kaha te ātete waikura o te mata hiri e rite ana ki ngā whakaritenga hoahoa;
(4) Ko te kaha ki te ātete i ngā karawarawa, he hiri hihiri katoa te hiri takirere, ā, he waku kei waenganui i te hiri i te wā e whakatuwhera ana, e kati ana hoki;
(5) Ātete ki te horo, me āhei te mata hiri ki te ātete i te horo o ngā mea tere-rahi me te tukinga o ngā matūriki totoka;
(6) He pai te pumau o te wera, me nui te kaha o te mata hiri me te ātete ki te waikura i te pāmahana teitei, ā, me pai te ātete ki te pakarukaru makariri i te pāmahana iti;
(7) He pai te mahi tukatuka, he ngāwari ki te hanga me te tiaki, he mea whakamahi te takirere hei wāhanga whānui, ā, he mea whakamana kia whai uara ōhanga.
Ngā tikanga whakamahi me ngā mātāpono whiriwhiri o ngā rauemi mata hiri takirere. E rua ngā wāhanga o ngā rauemi mata hiri: te mea whakarewa me te mea kore-whakarewa. Ko ngā tikanga e pā ana ki ngā rauemi e whakamahia whānuitia ana koia ēnei:
(1) Rapa. E whakamahia whānuitia ana mō te hiri o ngā takirere kuaha hiri-ngāwari pēhanga-iti, ngā takirere diaphragm, ngā takirere pūrerehua, ngā takirere tirotiro me ētahi atu takirere.
(2) Kirihou. Ko ngā kirihou e whakamahia ana mō te mata hiri ko te nairona me te PTFE, ā, he pai te ātete ki te waikura me te iti o te tauwehenga waku.
(3) Babbitt. E mōhiotia ana ko te koranu whāriki, he pai tōna ātete ki te waikura, ā, he pai hoki tōna kaha ki te rere ki roto. He pai mō te mata hiri o te takirere kati mō te haukini me te pēhanga iti me te pāmahana o -70-150℃.
(4) Koranu parahi. He pai te ātete ki te kakahu, ā, he ātete ki te wera. He pai mō te takirere porowhita, te takirere kēti rino maka, me te takirere tirotiro, me ētahi atu. Ko te tikanga he mea whakamahi mō te wai me te mamaoa me te pēhanga iti me te pāmahana kāore e neke ake i te 200℃.
(5) He maitai kore waikura Chrome-nickel. He pai tōna ātete ki te waikura, ki te horo, ki te wera hoki. He pai mō ngā mea pērā i te waikawa hauota kohu.
(6) He kowiri tira Chrome. He ātete pai ki te waikura, ā, e whakamahia ana i roto i ngā takirere he pēhanga teitei me te pāmahana kāore i te neke ake i te 450 ℃ mō te hinu, te mamaoa wai me ētahi atu mea.
(7) He maitai mata chromium teitei. He pai te ātete ki te waikura me te kaha whakapakeke mahi, ā, he pai mō te hinu pēhanga teitei, te hinu pāmahana teitei, te mamaoa me ētahi atu mea.
(8) Rino hauota. He pai tōna ātete ki te waikura me te rakuraku, ā, e whakamahia ana i roto i ngā takirere keti o ngā teihana hiko wera. Ka taea hoki te whiriwhiri i tēnei rauemi mō te porowhita o ngā takirere pōro hiri-mārō.
(9) Carbide. He pai ngā āhuatanga whānui pēnei i te ātete ki te waikura, te ātete ki te horo me te ātete ki te rakuraku, ā, he roa te ora mahi. He rauemi hiri tino pai. Ko ngā irahiko mata koranu tungsten me te koranu turanga keri e whakamahia whānuitia ana, ka taea te hanga i te mata hiri pēhanga tino teitei, pāmahana tino teitei, e tika ana mō te hinu, te hinu, te hau, te hauwai me ētahi atu mea.
(10) Koranu whakarewa rehu. Kei reira ngā koranu e ahu mai ana i te cobalt, ngā koranu e ahu mai ana i te nickel, me ngā koranu e ahu mai ana i te kauae, he pai te ātete ki te waikura me te ātete ki te kakahu.
Hei whakarite i te haumaru me te pono o te hiri takirere, me whakatau te rauemi kua tīpakohia kia rite ki ngā tikanga mahi motuhake. Mena he tino waikura te reo, i te wā e tīpakohia ana ngā rauemi, me tutuki i te tuatahi te mahi waikura, kātahi ka tutuki i ngā whakaritenga o ētahi atu āhuatanga; me aro te hiri o te takirere kuaha ki te ātete pai ki te rakuraku; ko ngā takirere haumaru, ngā takirere whakatere me te takirere whakahaere ka tino ngawari te waikura e te reo, ā, me tīpako ngā rauemi he ātete waikura pai; mō te hanganga whakarārangi o te mowhiti hiri me te tinana, me whakaaro ngā rauemi he pakeke teitei hei mata hiri; ko ngā takirere whānui he iti te pāmahana me te pēhanga me tīpako te rapa me te kirihou he pai te mahi hiri hei hiri; i te wā e tīpakohia ana te rauemi hiri, me mōhio ko te pakeke o te mata o te nohoanga takirere me teitei ake i te mata hiri o te kōpae takirere.
Wā tuku: Whiringa-ā-rangi-02-2022