He wāhanga nui te hiko karāpiti o te hanga maitai EAF, engari he iti noa iho te utu mō te hanga maitai. E 2 kg o te hiko karāpiti e hiahiatia ana hei hanga i te kotahi tana o te maitai.
He aha i whakamahia ai ngā irahiko karāhe?
Ko te irahiko karāpiti te hononga matua o te oumu pewa. Ko ngā EAF te tukanga whakarewa i ngā para mai i ngā motuka tawhito, i ngā taputapu kāinga rānei hei hanga maitai hou.
He iti iho te utu hanga o te oumu hiko pewa i tērā o te oumu pupuhi tuku iho. Ka hangaia te maitai e ngā oumu pupuhi tuku iho mai i te rino, ā, ka whakamahia te waro kōkō hei wahie. Heoi, he nui ake te utu o te hanga maitai, ā, he kino te parahanga o te taiao. Heoi, ka whakamahia e te EAF te maitai para me te hiko, kāore e pā ki te taiao.
Ka whakamahia te hiko karāpiti hei whakakotahi i te hiko me te taupoki oumu kia kotahi, ā, ka taea te whakahaere i te hiko karāpiti ki runga, ki raro. Kātahi ka haere te iahiko mā roto i te hiko, ka hanga he pewa pāmahana teitei e whakarewa ana i te maitai para. Ka taea e ngā hiko te whānui ki te 800mm (2.5 putu) me te roa ki te 2800mm (9 putu). Ko te taumaha mōrahi neke atu i te rua tāne metara.
Te whakamahinga o te hiko graphite
E rua kirokaramu (4.4 pauna) o ngā irahiko karāpeti e hiahiatia ana hei hanga i tētahi tana maitai.
Te pāmahana hiko graphite
Ka eke te pito o te hiko ki te 3,000 nekehanga Celsius, te haurua o te pāmahana o te mata o te rā. He mea hanga te hiko ki te karāpiti, nā te mea ko te karāpiti anake ka taea te tu atu i aua pāmahana teitei.
Kātahi ka hurihia te oumu ki tōna taha, ka ringihia te maitai rewa ki roto i ngā oko nunui. Kātahi ka tukuna e te koko te maitai rewa ki te mīhini whakarewa o te mira maitai, ka hurihia te para hangarua hei hua hou.
Ka pau te hiko i te hiko graphite
E hiahiatia ana te hiko hei whakakaha i tētahi tāone e 100,000 te taupori mō tēnei tukanga. I roto i tētahi oumu hiko hou, e 90 meneti te roa o ia rewa, ā, ka taea te whakaputa i te 150 tana o te maitai, he nui hei hanga i te 125 waka.
Rauemi mata
Ko te kōka ngira te rauemi matua mō ngā irahiko, e toru ki te ono marama te roa o te hanga. Ko te tukanga he tunu me te whakakī anō kia huri ai te kōka hei karāpeti, e ai ki te kaihanga.
Kei reira te ngira kōka hinu me te ngira kōka waro, ā, ka taea te whakamahi i ēnei hei hanga i ngā irahiko karāpeti. Ko te "kōka pet" he hua taha o te tukanga whakamahine hinu, ko te waro-ki-kōka ka hangaia mai i te tāra waro e puta ana i te tukanga hanga kōka.
Wā tuku: Oketopa-30-2020