Ko te whakamahana i mua i te whakamahana he hononga nui ki te katoate tukanga whakaipoipo, e whai mana tika ana ki te whakapai akehanga hua, te whakarite i te kounga pai me te whakaiti i te whakapau kaha. Ko te kowhiringa tika o te pāmahana whakamahana ka pai ake te hanga o te pire ki te ahua kirihou pai ake. Forging single in thete tukanga whakaipoipoki te whakarewa whakawera whero pātea, kia rite ki te whakamahi o puna wera rerekē, ka taea te wehea ki whakawera hiko me te mura whakawera e rua ngā kāwai.

Tuatahi, whakawera hiko
Ka whakamahia te whakamahana hiko hei whakamahana i nga pire whakarewa mowhakangaomā te huri i te pūngao hiko ki te pūngao wera. Ko te taputapu ka huri i te hiko hiko ki te wera ki te whakamahana metara ka kiia ko te oumu hiko. Ko nga painga o te whakamahana hiko he tere te tere o te whakamahana, he ngawari ki te whakahaere i te pāmahana o te oumu wera, he iti ake te oxidation me te decarbonization, he ngawari ki te mohio ki te miihini, te miihini me nga tikanga mahi pai. Ko te ngoikoretanga ko te rahi me te ahua o te whakarereketanga huringa patea kaore i te kaha, he uaua te hanganga taputapu, he nui ake te utu haumi i te whakawera mura, he nui te mahi me te whakamahi i nga whakaritenga hangarau.

Tuarua, whakawera mura
Ko te whakamahana mura te tikanga whakamahana noa. Ka whakamahia e te whakamahana mura te hiko wera i puta mai i te pararihi wahie hei whakamahana i te pire whakarewa. Te hinu hinu Te waro, te coke, te hinu diesel, te hau, te hau maori, me era atu. Ko te painga o te whakamahana mura he watea te puna wahie, he ngawari te hanga o te oumu, he iti te utu whakamahana, he whanui te whakamahi mo te whakarewa. pire e whakamahia ana ki te hanga hanga. Na reira, ka whakamahia nuitia tenei whakamahana ki te whakaputa i nga momo rahi, reo me te itiwhakangao. Ko enei tikanga whakamahana kua whakamahia nuitia ki te hanga hanga. Ko te ngoikoretanga ko nga tikanga mahi he ngoikore, he puhoi te tere whakawera, he uaua ki te whakahaere i te kounga whakawera.