Teroera arako tētahi o ngā wāhanga tino taumaha te utaina i roto i te raro o te kerekere, o te puruta rānei.

He rerekē tēnei i te maha atu o ngā wāhanga o raro i te waka, he nui te wāhanga o te taumaha o te mīhini e haria ana e ngā roera ara, i a rātou e hurihuri tonu ana ki te mekameka ara.

Mā te paru, te wai, te onepu, ngā toka me te whenua kāore i te ōrite ki te whārite, ka tino uaua ngā āhuatanga mahi.

Koia te take kāore i te maha ngā take e puta ai te pakaru wawe o te roera ara nā te mea kotahi anake. Ko te kōwhiringa rauemi, te maimoatanga wera, te kaha hanganga me te hoahoa o roto o te peera e pā ana ki te roa o te mahi a te roera i te mara.

1. Tinana Roera 42CrMo i Hangaia mō ngā Mahi Taumaha

Mō te tinana roera, ka whakamahia e mātoumaitai 42CrMo i hangaiakaua ki te rauemi whakarewa noa.

Ka tineihia te tinana o te roera me te whakamahana i te tuatahi hei whakapai ake i tōna pakari whānui, me te pupuri i te pakeketanga i runga ake i teHRC 32.

Kātahi ka whakapakeketia te mata mahi kiaHRC 52–60, me te paparanga mārō o te tata ki6–12 mm.

He mea tino nui tēnei paparanga hōhonu kua whakapakeketia mō ngā mīhini e whakahaerehia ana i raro i ngā kawenga taumaha.

Kāore te takai ara e pāngia e te pakaru i te mata tonu anake. Mēnā ka takai tonu ki te ara, me ngā kōhatu mārō me ngā matūriki whakakoi, ka pakaru haere pea ki te mata mahi.

Mā te paparanga whakapakeke e whakahaeretia tika ana ka āwhina i te roera kia roa ake te ātete ki te kakahu, ā, ka whakaiti i te tūponotanga o te pakaru wawe o te mata, te ngatata rānei.

Mō ngā keri taumaha, ngā purutoha me ētahi atu mīhini e mahi ana i runga i ngā whenua uaua, ka nui haere te rerekētanga i ngā hāora mahi roa.

2. He tokotoko kaha ake mō ngā kawenga taumaha me te taipana auau

Ka pāngia te rakau e tētahi momo ahotea rerekē.

I te wā e whakahaerehia ana, ka pāngia te roera ara e te kawenga poutū mai i te mīhini, tae atu ki te taipana auau e puta mai ana i te hurihanga, te piki pari me te haere i runga i ngā whenua pārūrū.

Ka whakamahia e mātou42CrMo maitaimō te kakau.

I muri i te tinei me te whakamahana, ka mau tonu te pakeke o te matua ki runga ake i teHRC 28, i te wā e whakapakeketia ana te mata mahi kiaHRC 52–60.

Ka whakahaerehia te paparanga whakapakeke i te tata ki te3–5 mm.

Kua hangaia tēnei huinga hei whakataurite i ngā whakaritenga e rua:

Ātete kakahu mata + Pakari matua

Mā te mata mārō ka whakaiti i te pakaru i waenga i te rakau me te peera, ā, mā te matua pakari ka pai ake te ātete ki te piko me te pānga.

Mō ngā mahi taumaha, he mea nui tēnei taurite. Tērā pea ka ngoikore te rakau he tino mārō engari kāore i te pakari, ā, ka tere ake te pakaru o te mata nā te kore e pakari rawa.

3. Ngā Taupoki Pito me ngā Nohoanga i Hangaia hei Whakapai ake i te Kaha Hanganga

Ehara i te tinana roera anake te wāhanga hanganga he mea nui.

Tengā taupoki pito me ngā nohoanga pouhe mea hanga mai imaitai 45# i hangaiaā, ka whiwhi i te maimoatanga tinei me te whakamahana.

Ki te whakatauritea ki ngā wāhanga whakarewa tuku iho, ka kaha ake te pumau ā-mīhini o te hanganga whakarewa mō ngā āhuatanga mahi uaua.

He maha ngā wā ka tūtaki ngā roera ara ki ngā kōhatu, ki te whenua kāore i te ōrite me ngā kawenga pānga ohorere.

Mā te hanganga pito kaha ake ka whakaiti i te mōrearea o te whakarerekētanga o te ahua, te ngatata rānei i raro i ēnei āhuatanga.

Ka āwhina hoki ki te tiaki i te pūnaha whakahinuhinu o roto.

Ina pakaru te roera, ina kore rānei e hiritia te pito o te hanganga, ka uru pea te paru me te wai ki roto. Kia poke te pūnaha whakahinuhinu, ka tere te tere o te pakaru o te peera me te pou.

Nō reira, ka mahi tahi te kaha o te hanganga me te tiaki hiri.

4. Ngā Pūwero Whakarewa-rua mō te Mahi Taumaha Tonu

Ko te pūnaha whāriki ā-roto tētahi atu wāhanga e pā tika ana ki te pono o te roera ara.

Ka whakamahia e ā mātou roera arangā pū whakarara rua me te paparanga parahi neke atu i te 0.7 mm i te taha kotahi, i honoa kimowhiti pana parahi parakore.

He pai ngā āhuatanga o te hanganga peera parahi hei pupuri i te kawenga me te whakaiti i te waku.

He mea nui rawa tēnei mō ngā mīhini e mahi tonu ana i raro i ngā kawenga teitei.

Ko te whāinga kia mau tonu te hononga o te rakau me te pū, me te whakaiti i te waku me te whakaputa wera.

Mā te whakahinuhinu me te tiaki tika, ka āwhina te hoahoa ki te whakaiti i te mōrearea ote hopunga o te toki me te pakaru o te pūi te wā mahi roa.

I hangaia mō ngā āhuatanga e pakaru ai ngā roera ara

Tērā pea te āhua o te roera ara he wāhanga maitai noa iho.

Ko te mea pono, ka mahi ia i te wā e hono ana ngā āhuatanga maha:

• Taumaha mīhini taumaha
• Paa hurihuri tonu
• Oneone me te kirikiri whakakoi
• Te paru me te parahanga wai
• Te pānga mai i te whenua koretake
• Ngā kawenga hurihuri me te piki
• Te taipana me te wiri e whakahoutia ana

Koia mātou e kore ai e whakaaro ki te hanga i te roera ara he mahi whakapakeke noa iho.

Me taurite te hoahoa:

Kaha Rauemi → Maimoatanga Wera → Ātete Kakahu → Pakari Hanganga → Mahi Whawhai

Mai i te mea hangaTinana me te pou roera 42CrMoki ngā mata mahi kua whakapakeketia, ngā wāhanga pito kua hangaia me ngā pū whakapūwero-rua he parahi, kua hangaia ia wāhanga kia rite ki ngā āhuatanga mahi tuturu o te raro.

Nā te mea ina pakaru wawe te roera ara, kāore te utu e herea noa ki te whakakapi i te roera kotahi.

Mā te pakaru nui o te ara, te roa o te wā e kore ai e mahi te mīhini, me te tiaki wawe i te raro o te waka ka nui ake te utu tuturu.

Ehara i te mea he uaua noa iho te rōra ara pai ake. Engari he mea ka taea te noho pono i raro i te kawenga, te pānga me ngā āhuatanga pakaru mō te huringa mahi roa ake.