Wāhanga 1: Te Toi o te Whakatakoto
Te haerenga o tētahipounamu karāheKa tīmata te mahi i te tari puranga. I konei, ka purangahia ngā maunga o te onepu silica, te kōhatu, te dolomite, te feldspar, te pungarehu houra, me te nui o te cullet hangarua (te karāhe pakaru) me ētahi atu rauemi mata kohuke me te matū. I raro i te mana whakahaere o ngā pūnaha aunoa, ka paunatia me te whakaranua ēnei rauemi mata, ka hurihia hei "puranga" ōrite. He mea nui tēnei taahiraa, nā te mea ka whakatau tika i te parakore me te kounga o te karāhe rewa e whai ake nei. Hei tāpiri, kia tino mārama me te kanapa te karāhe, me tino tangohia ngā paru rino i roto i ngā rauemi mata.
Wāhanga 2: Te Rewa o te Ahi
Ka haria te puranga kua oti te whakarite mā roto i ngā kaikawe ki te awheawhe rewa, ka tukuna ki roto i tētahi oumu karāhe nui. I konei, ka piki te pāmahana ki te 1450°C ki te 1600°C. I roto i tēnei "oumu matū" e mura ana, ka rewa haere ngā rauemi paura, ka pāngia e ngā tauhohenga matū uaua, ā, ka mutu ka hanga he karāhe wai matotoru, kāore he mirumiru—te karāhe rewa. Ko tēnei wāhanga te uho o te tukanga whakaputa katoa, ā, me mahi tonu. Kia tahuna te oumu karāhe, ka rere tonu mō ngā tau maha, neke atu rānei.
Wāhanga 3: Te Makutu o te Hanga
Ka tukuna te karāhe rewa mā roto i tētahi whāngai ki te taputapu hanga—te mīhini hanga pounamu (mīhini IS). Koinei te peke nui e puta ai te āhua o te karāhe kore āhua. I tēnei wā, e rua ngā tukanga hanga matua, e tohu ana i te "toi makutu" o te ahumahi hou:
Ko te tuatahi ko te tukanga "Blow & Blow". Ko tēnei tikanga te mea nui hei hanga pounamu kaki-whaiti pērā i ngā pounamu pia. Tuatahi, ka rere te karāhe rewa ki roto i tētahi pokepokea ai, ka whakamahia te hau kōpeke hei hanga i te whakaotinga (te waha o te pounamu) me te parison tuatahi (he āhua tuwhera). Kātahi ka whakawhitia tēnei "gob" wera ki tētahi pokepokea ai pupuhi whakamutunga, ka whakamahia anō te hau kōpeke, ka pupuhihia ki ngā pakitara o roto o te pokepokea ai hei hanga i te āhua pounamu e mōhiotia ana.
Ko te tuarua ko te tukanga "Pēhi me te Pupuhi". He hangarau matatau ake tēnei, he tino pai mō te hanga ipu waha whānui pērā i ngā ipu, ā, kua whānuitia te whakamahi ināianei mō te hanga pounamu pia māmā. Kāore i rite ki te tikanga Pupuhi me te Pupuhi, ina uru te ipu karāhe ki te pokepokea kore, ka pēhia tuatahitia te karāhe e te pūwero whakarewa, ka hangaia te mutunga o te pounamu me te parison i te wā kotahi. Kātahi ka oti te hanga i te pupuhi whakamutunga. Ka hua ake i tēnei tukanga he tohatoha matotoru pakitara ōrite ake, he kaha ake hoki. Ka taea e ngā pounamu e hangaia ana i tēnei ara te 20% ki te 50% te mama ake i ērā i hangaia me te tikanga Pupuhi me te Pupuhi tuku iho, ka penapena rauemi mata me te whakaiti i ngā utu kawe.
Wāhanga 4: Te Whakakore i te Taumahatanga
He tino wera tonu, he pakarukaru hoki ngā pounamu karāhe hou mai i te mīhini hanga. I tēnei wā, ka whakarārangihia pai ki runga i te whitiki kawe, ka haere tonu ki roto i te werawera roa. He taahiraa nui te werawera i roto i te hanga karāhe. Ko tōna kaupapa he whakamatao āta haere i ngā pounamu, kia kore ai e pāngia e ngā ahotea o roto i puta mai i te whakamatao tere i te wā e hanga ana. Ki te kore tēnei tukanga, ka pakaru noa te pounamu karāhe i te rerekētanga iti o te pāmahana, i te pānga iti rānei. Whai muri i te whakapaunga o ngā haora maha i roto i te tukanga whakamatao whakahaere, ōrite, ka whiwhi ngā pounamu karāhe i ō rātou āhuatanga ā-tinana pumau.
Wāhanga 5: Tirotiro Pūmau
I te putanga mai i te raina whakaputa, me aro atu ngā pounamu karāhe ki tētahi raupapa o ngā "kanohi" matatau. Ka whakamahia e ngā raina whakaputa hou ngā taputapu tirotiro aunoa hei whakahaere i tētahi "whakamātautau tinana" whānui mō ia pounamu: Te matawai i te tinana mō ngā hapa pēnei i te pakaru, te mirumiru, te kōhatu rānei (ngā matūriki kua whakauruhia); te tirotiro i te mata hiri o te whakaotinga mō te papatahi; me te whakamātautau i te ātete o te pounamu ki te pēhanga ā-roto me te kawenga poutū. Ko ngā hua anake e paahitia ana ēnei tirotiro me te reiti tohu 100% ka haere ki te wāhanga tākai whakamutunga.
Mai i te onepu noa ki ngā pounamu karāhe kanapa, mārama, e whakaatu ana ia taahiraa i te tika o te pūtaiao rauemi me te hanga ahumahi. Ahakoa ko te tikanga Blow & Blow kua roa e whakamahia ana, ko te tukanga Press & Blow rānei e tohu ana i te ia o te whakamama, kei te whanake tonu te hangarau i muri i te hanga pounamu karāhe, e whakarato ana i ngā ipu tākai tuku iho me te hou, he pai ki te taiao me te haumaru.
Wā tuku: Maehe-12-2026
