Te pū parau, te hea parau, ngā wāhanga parau ahuwhenua, ngā wāhanga mīhini pāmu
• Whakamahia mō ngā parau, ngā parau whenua, me ngā mīhini whakarite oneone
• Ka uru ki roto, ka huri i te oneone hei whakatō me te mahi ahuwhenua
• Ka whakaiti i te waku me te pakaru i te wā e ngaki ana
• He mea nui mō te whakapai ake i te pai o te parau me te kounga o te oneone
1, He mea hanga ki te rauemi koranu tino ātete ki te kakahu, ka roa ake te roa o te ora mā te 30%
Ka whakamahia e tēnei hua te maitai manganese teitei, te maitai boron rānei hei anga, ā, ka tāpirihia ngā huānga koranu onge pērā i te chromium me te molybdenum. Whai muri i ngā tukanga maimoatanga wera maha (te tinei hinu whānui me te whakamahana pāmahana iti), ka taea e te pakeke o te mata te eke ki te HRC 45-52, ā, ka mau tonu te pakari o te matua. Ki te whakatauritea ki ngā pito parau maitai 65Mn noa, kua pai ake te ātete o tēnei hua ki te kakahu mā te neke atu i te 30% i roto i ngā āhuatanga mahi uaua pērā i te whenua onepu, kirikiri rānei, ā, ka whakaitihia te auau o te whakakapinga mara.
2, hoahoa whakakoi whaiaro koiora, he pai te wahie me te penapena mahi
I ahu mai i ngā piko o ngā maikuku o ngā kararehe oneone pērā i te kirikiti, ka whakamahia e te pito parau he hoahoa "kone parabolic". Mā tēnei hanganga ka taurite te pakaru o ngā parirau taha i te wā e whakamahia ana, ka mau tonu te pānga "whakakoi-ake" - ahakoa i muri i te wā e whakamahia ana, ka noho koi tonu te mata tapahi pērā i mua. Ehara i te mea ka whakaitihia te ātete ki te kukume o te tarakihana (tata ki te 15%) anake, engari ka tutuki hoki te penapena wahie, ka maeneene ake te mahi parau hohonu.
3, Ātete ki te pānga, kāore e pakaru, he pai mō ngā whenua uaua
Hei whakautu i ngā arai ohorere pērā i ngā toka huna me ngā pakiaka rākau i roto i ngā mara, kua whakapakarihia e mātou te matotoru o ngā pakiaka i roto i te hanganga hua, ā, kua arotauhia te whakawhiti piko. Ahakoa ka pāngia e ngā pānga kaha, ka "piko" te pito o te parau kaua e "pakaru", ka tino whakarite i te haumaru o te tarakihana me te tinana parau whakatārewatanga, me te karo i ngā pakaru o te miihini matua i puta mai i te pakaru.
4, Tāutanga Ao Whānui, hototahi ki ngā tauira matua
Me whai pūmau i ngā tūranga kōhao paerewa o te ao mō te miihini, me ngā taunga e whakahaeretia ana i roto i te ± 0.5mm. Hototahi ki a Reken, Gran, me ngā parau hurihuri me ngā parau matua o te whare. Mā ngā pūtu me ngā nati ārai-wetewete kua whakapakeketia ka kore e wetewete, e takahuri rānei i raro i te wiri kaha.
