Ngā Taputapu Mīhini Ahuwhenua – Te Upoko Parai Ātete-Kakahu Kaha-Teitei
I roto i ngā mahi ahuwhenua o ēnei rā, ko te hea parau, te wāhanga tino ngoikore o mua o ngā mīhini parau, e whakatau tika ana i te mahi uru ki te oneone, te pai o te mahi, me te roa o te ora o te mīhini. Ko tā mātou hea parau kaha, ātete ki te kakahu, he mea hanga motuhake mō ngā taiao oneone uaua me ngā hiahia mahi auau teitei, ko te whāinga he whakaiti i ngā utu ahuwhenua me te whakapai ake i te pai o te mahi mō ngā kaiwhakamahi mā tōna pakeke me tōna pakari.
Ka whakamahia e tēnei hua te maitai konupora-nui (Mn13) te maitai puna 65Mn rānei hei rauemi turanga (kāore he whiringa, i runga i ngā hiahia o te kiritaki). Whai muri i te tinei i te pāmahana teitei me te whakamahana i te pāmahana iti, ka hangaia he hanganga austenitic, martensitic rānei i roto i te rauemi, ka hua ake he pakeke o te mata o te mata parau o te HRC 38-45, ā, ka mau tonu te pakari o te matua. Mā tēnei āhuatanga "pakari i waho, pakari i roto" ka taea e ia te ātete pai i te kakahu me te tu atu i ngā kawenga pānga kino ina pa ana ki ngā poraka oneone pakeke, kirikiri, oneone onepu rānei, ka ārai pai i te mōrearea o te pakaru.
II. Te Arotautanga Hanganga, Te Whakataurite i te Ātete ki te Pakaru me te Whakakoi-ā-Whaiaro
Mā roto i ngā tukanga hanga, whakarewanga rānei tino tika, ka whakarite mātou kia ōrite te mata piko o te parau ki te paerewa o ngā wāhanga taketake.
1, Mata tapahi kua whakangawaritia: Ka arotau i te ara rere o te oneone i runga i te mata o te pito parau, ka whakaiti nui i te ātete waku me te whakapaunga wahie tarakihana, ka taea ai te parau maeneene i roto i te oneone maroke, kikī me ngā mara raihi mākū, piri.
2, Hoahoa whakakoi-ake: Ko te wāhi matua i mua o te pito parau ka matotoru, ka whakapakarihia ki te paparanga koranu ātete-kakahu. I te wā e whakamahia ana, ka mau tonu te koki tapahi koi o te pito parau, ka tutuki ai te pānga "whakakoi-ake" me te whakarite kia kaha te urunga o te oneone puta noa i tōna roanga oranga, ka whakatau i te raruraru o te puhoi haere o ngā pito parau noa i te kakahu.
He mea hanga te hua nei kia rite ki ngā tūnga pū kōhao paerewa o ngā tarakihana o roto me tāwāhi, ngā parau hurihuri, me ngā parau papa pokepoke, ā, he tino whai hua, he tino hototahi hoki ki ngā waitohu kawemai pērā i a Recon me Gran, tae atu ki te nuinga o ngā tauira o roto. He mea tā matao ngā pū kōhao whakairi, me ngā āheinga ā-ahu e whakahaeretia ana i roto i te awhe tino iti, kia kore ai e hiahiatia he huri tuarua, he whakanui pū kōhao rānei i te wā whakakapinga, kia taea ai te whakamahi tonu, ā, kia whakaitihia ai te wā kore mahi mō te tiaki mara.
