Nā te rerekētanga o te hanganga o te takirere pūrerehua e wehewehe ana i ngā momo takirere pūrerehua e whā, arā:takirere pūrerehua porowhita, takirere pūrerehua rerekē kotahi,takirere pūrerehua rerekē takiruame te takirere pūrerehua rerekē-toru. He aha te ariā o tēnei rerekētanga? Me pēhea te whakatau i te wā e whakamahia ai te takirere pūrerehua porowhita, te wā e whakamahia ai te takirere pūrerehua rerekē-kotahi, te wā e whakamahia ai te takirere pūrerehua rerekē-rua me te takirere pūrerehua rerekē-toru? He maha ngā kaiwhakamahi kāore i te tino mārama. Me ako tahi tātou.
Ngā takirere pūrerehua porowhita, takirere pūrerehua rerekē kotahi, takiruangā takirere pūrerehua rerekēā, ko ngā takirere pūrerehua rerekē-toru e whakaata ana i te tukanga whakatuwheratanga me te kati me te iti haere o te kaha me te iti haere o te kakahu i runga i te mata hiri. Mā te whakatakoto i te tūranga o te pou hurihuri o te pereti takirere pūrerehua, ka taea te whakarerekē i ngā āhua hiri me te whakatuwheratanga o te takirere pūrerehua. I raro i ngā āhuatanga ōrite, ka piki haere te taipana o te takirere i te wā e whakatuwherahia ana. Ina whakatuwheratia te takirere, ka iti ake te koki hurihuri e hiahiatia ana kia wehea ai te pereti takirere mai i te hiri i roto i te raupapa.
Ko te āhuatanga hanganga o te takirere pūrerehua porowhita ko te pokapū o te kakau takirere, te pokapū o te pereti pūrerehua me te pokapū o te tinana takirere kei te tūranga kotahi. I te nuinga o te wā, ki te taea te whakamahi i ngā takirere pūrerehua porowhita, me whakamahi i te nuinga o te wā. Nā te mea kāore e hiahiatia he mahi hiri teitei mō te hanganga, te mahi rānei o te momo porowhita, he hua noa iho. Hei whakakore i te whakaputanga, te waru, me te whakarite i te mahi hiri, ko te nohoanga takirere o te takirere pūrerehua porowhita he mea hanga ki te rapa, ki te PTFE rānei me ētahi atu rauemi rapa, he takirere pūrerehua hiri ngohengohe. Nā tēnei ka taea te whakamahi i ngā takirere pūrerehua porowhita ki raro i ngā herenga pāmahana. Hei whakaoti i te raruraru whakaputanga o te pereti pūrerehua me te nohoanga takirere, i hangaia he takirere pūrerehua porowhita kotahi. Ko tōna āhuatanga hanganga ko te pokapū o te kakau takirere e peka ana mai i te pokapū o te pereti pūrerehua.
Ko te takirere pūrerehua takirua rerekē te mea e whakamahia whānuitia ana. Ko tōna āhuatanga hanganga ko te pokapū o te kakau takirere e peka ana mai i te pokapū o te pereti pūrerehua me te pokapū o te tinana takirere. E peka ana mai i ngā tūranga pokapū e rua, nō reira e kiia ana ko te takirere pūrerehua rerekē takirua. He maha o rātou he hiri raina. Ina kati te mata hiri, ka puta he waku i waenga i te pereti kōpae me te nohoanga takirere, ā, he tino pai te pānga hiri. He iti te wāhi me te kaha o te pēhanga. I muri i te whakatuwheratanga o te takirere, ka taea e te pereti pūrerehua te wehe atu i te nohoanga takirere, ka tino whakakorea te nui o te pupuhi me te waru i waenga i te pereti me te nohoanga, ka whakaiti i te tawhiti ātete whakatuwheratanga, te kakahu, ā, ka whakapai ake i te roa o te ora o te nohoanga takirere.
Ko te takirere pūrerehua rerekē-toru he tuatoru o ngā rerekētanga i runga i te pūtake o te takirere pūrerehua rerekē-rua. Ko te āhua o te takirua hiri ehara i te kōne pai, engari he kōne whakarara. Ko te nuinga o ēnei he kaha tawhiti poto me te hiri mata. Ko te kakau o te takirere pūrerehua rerekē-toru he hanganga kakau wāhanga-toru. Ko ngā wāhanga kakau e rua o te kakau takirere kakau wāhanga-toru he porowhita, ā, ko te raina pokapū o te kakau wāhanga pokapū e wehe ke ana i te tuaka o ngā pito e rua mā te tawhiti pokapū, ā, ko te pereti pūrerehua kei waenganui. i runga i te kakau. Nā tēnei hanganga rerekē ka hanga te pereti pūrerehua kia āhua rerekē-rua ina tuwhera katoa, me te āhua rerekē-kotahi ina tahuri te pereti pūrerehua ki te tūranga kati. Nā te pānga o te kakau rerekē, ina tata ki te kati, ka neke te pereti pūrerehua ki te mata kōne hiri o te nohoanga takirere, ā, ka ōrite te pereti pūrerehua ki te mata hiri o te nohoanga takirere kia tutuki ai te mahi hiri pono. Ka whakatikahia te whakahē he hiri ngoikore te hiri o te hiri mārō, ā, he pai te pānga hiri o te hiri ngohengohe engari kāore e ātete ki te pāmahana teitei.
Ko te wā e whakamahia ai te takirere pūrerehua porowhita, te wā e whiriwhiri ai i te takirere pūrerehua rerekē takirua, i te takirere pūrerehua rerekē takitoru rānei, ko te nuinga o te wā ka whakawhirinaki ki ngā tikanga mahi me te tahua.
Wā tuku: Whiringa-ā-rangi 28-2022