Kōpae Hurihanga Wera 5 inihi mō te Hurihanga Koki Kōpae Tapahi Kowiri tira
Ko te mata tapahi motuhake o te kowiri tira he momo mata tapahi, e ai ki te ingoa, he mea hanga motuhake hei tapahi i te kowiri tira. He maha ngā rauemi e wātea ana mō tēnei momo mata tapahi, ā, ka whakamārama poto mātou i ēnei ki a koe.
1. Alumina mā: He mea hanga mai i te paura konumohe waikura ahumahi, ka rewahia i te pāmahana teitei neke atu i te 2000 nekehanga i roto i te pewa hiko, ā, ka whakamataohia. Ka kuruhia, ka hangaia, ka wehea mā te aukume hei tango i te rino, ā, ka tātarihia kia rerekē te rahi o ngā matūriki. He matotoru tōna kakano, he pakeke rawa, ā, he koi ngā kokonga o ngā matūriki. He pai mō te hanga uku, ngā mea whakakoi e piri ana ki te kapia, tae atu ki te huri, te whakakanapa, te pupuhi onepu, te maka tika (te maka tika o te alumina motuhake), ā, ka taea hoki te whakamahi hei hanga rauemi ātete matatau.
2. Ko te kōrunuma parauri: Ko te nuinga o te wā he mea hanga mai i te bauxite me te coke (anthracite) hei rauemi mata, ā, ka whakarewaina i te pāmahana teitei i roto i te oumu hiko. He pai te taputapu huri i hangaia mai i a ia mō te huri i ngā konganuku he kaha te kume, pērā i ngā momo maitai whānui, te rino maka ngāwari, te parahi mārō, me ētahi atu. Ka taea hoki te whakamahi hei hanga rauemi ātete matatau. He āhuatanga o te parakore teitei, te tioata pai, te kaha rere, te iti o te tauwehenga whānui raina, me te ātete ki te waikura.
3. Karāhe hiraka: Ka hangaia mā te whakarewa pāmahana teitei mā te whakamahi i te onepu quartz, te kōka hinu (te kōka waro rānei), me ngā maramara rakau hei rauemi mata i roto i te oumu ātete. I roto i ngā rauemi ātete hangarau teitei kore-waikura o ēnei rā pērā i te C, N, me te B, ko te karāhe hiraka te mea e whakamahia whānuitia ana, e ohanga ana hoki. Ka taea te kī he onepu maitai, he onepu ātete rānei.
