He pānga nui tō te hangarau whakamahana ki te kounga o ngā wāhanga mekameka, inā koa ngā mekameka motopaika. Nō reira, kia taea ai te whakaputa mekameka motopaika kounga teitei, me whai hangarau me ngā taputapu whakamahana matatau.
Nā te rerekētanga i waenga i ngā kaihanga o te whare me te ao ke e pā ana ki te māramatanga, te whakahaere i te papaanga me ngā whakaritenga hangarau mō te kounga o te mekameka motopaika, he rerekētanga kei roto i te whakatakotoranga, te whakapai ake me te tukanga hanga o te hangarau maimoatanga wera mō ngā wāhanga mekameka.
(1) Ngā hangarau me ngā taputapu maimoatanga wera e whakamahia ana e ngā kaihanga o te rohe. Kei muri ngā taputapu maimoatanga wera i roto i te umanga mekameka o tōku whenua i ērā o ngā whenua kua whanake te ahumahi. Ina koa, he maha ngā raruraru o ngā oumu whitiki mata o te rohe pēnei i te hanganga, te pono me te pumau.
He mea hanga ngā pereti mekameka o roto, o waho hoki i ngā pereti maitai 40Mn me 45Mn, ā, he maha ngā hapa o ngā rauemi pēnei i te tango-waro me te pakaru. Ka whakamahia te oumu whitiki mata noa mō te tinei me te whakamahana, ā, ka nui rawa te paparanga tango-waro. Ka tinei-warohia, ka tineihia hoki ngā pine, ngā ringaringa me ngā roera, ko te hohonutanga whakapakeketanga whai hua o te tinei he 0.3-0.6mm, ā, ko te pakeketanga o te mata he ≥82HRA. Ahakoa e whakamahia ana te oumu roera mō te whakaputa ngāwari me te whakamahi taputapu nui, me mahi ngā tohunga hangarau i ngā tautuhinga me ngā huringa o ngā tawhā tukanga, ā, i roto i te tukanga whakaputa, kāore e taea te whakatika aunoa i ēnei uara tawhā kua whakaritea ā-ringa me te huringa ohorere o te hau, ā, ko te kounga o te maimoatanga wera kei te whakawhirinaki tonu ki ngā tohunga hangarau o te papaanga (ngā kaimahi hangarau). He iti te taumata hangarau, ā, he ngoikore te kounga o te whakaputa. I te whakaaro ki te putanga, ngā whakaritenga me ngā utu whakaputa, me ētahi atu, he uaua ki te whakarerekē i tēnei āhuatanga mō tētahi wā.
(2) Ko te hangarau me ngā taputapu maimoatanga wera e whakamahia ana e ngā kaihanga o tāwāhi. E whakamahia whānuitia ana ngā oumu whitiki mata tonu, ngā raina whakaputa maimoatanga wera mekameka whakarewa rānei ki tāwāhi. Kua tino pakari te hangarau whakahaere hau. Kāore he take mō ngā tohunga hangarau ki te whakatakoto i te tukanga, ā, ka taea te whakatika i ngā uara tawhā e tika ana i ngā wā katoa e ai ki ngā huringa ohorere o te hau i roto i te oumu; mō te kukū o te paparanga waro, ka taea te whakahaere aunoa i te tūnga tohatoha o te pakeke, te hau me te pāmahana me te kore e whakarerekē ā-ringa. Ka taea te whakahaere i te uara piki me te heke o te kukū waro i roto i te awhe o te ≤0.05%, ka taea te whakahaere i te piki me te heke o te uara pakeke i roto i te awhe o te 1HRA, ā, ka taea te whakahaere tika i te pāmahana i roto i te ± I roto i te awhe o te 0.5 ki te ±1℃.
Haunga te kounga pumau o te tinei me te whakamahana pereti mekameka o roto, o waho hoki, he tino pai hoki te whakaputa. I te wā e whakapūmau ana, e whakapūmau ana hoki i te rakau titi, te ringaringa me te roera, ka tatau tonuhia te huringa o te pihi tohatoha kukū kia rite ki te uara tauira tuturu o te pāmahana oumu me te pūmanawa waro, ā, ka whakatikatikaina te uara kua whakaritea o ngā tawhā tukanga me te arotau i ngā wā katoa kia mau tonu ai te kounga ā-roto o te paparanga whakapūmau.
I roto i tētahi kupu poto, he rerekētanga nui i waenganui i te taumata hangarau maimoatanga wera o ngā wāhanga mekameka motopaika o tōku whenua me ngā kamupene o tāwāhi, ko te take nui ko te kore e tino pakari te pūnaha whakahaere kounga me te taurangi, ā, kei te noho tonu i muri i ngā whenua whakawhanake, inā koa te rerekētanga o te hangarau maimoatanga mata i muri i te maimoatanga wera. Ko ngā tikanga tae māmā, whai hua, kāore hoki e poke i ngā pāmahana rerekē, te pupuri rānei i te tae taketake, ka taea te whakamahi hei whiringa tuatahi.
Wā tuku: Hepetema-08-2023