Ko te hangarau hanga ZTF he tukanga hanga paipa honohono roa i whakawhanakehia e ZTZG. Kua tātarihia e ia ngā hangarau hanga momo-roera me te momo-roera rarangi, ā, kua whakatūria he ariā hanga whaitake. I te tau 2010, i whakawhiwhia ki a ia te 'Tohu Auaha Hangarau' e te 'China Cold Forming Steel Association' i te tau 2010. Whai muri i te tango i ngā hangarau hanga paipa matatau mai i tāwāhi me te kāinga, ko tā mātou raina hanga auaha me ia waeine o te raina hanga ehara i te mea he ohanga anake engari he whai hua hoki.
Ka akohia e ia ngā āhuatanga rerekētanga nui o te hanga hurihuri. E rima ngā rōra papatahi, e whā ngā rōra poutū, e rua ngā hanga tino tika, me te kotahi te whata whakaputa. Ko te tikanga hanga he piko hanga whānui maha-taahiraa, ko ia piko he tata ki te radius whakarewa, ā, ka wehea kia rima ngā ara hanga taratara hei piko mārire mai i te taha ki waenganui o te rīpene maitai, ā, ko ia piko he tata ki te 1/10 o te whānui o te rīpene maitai. Hei tango i tētahi kōhao whānui, ka whakaarohia e te pihi hurihuri he āhua porowhita me te huringa piko tonu. Nō reira, kāore te piko o ia wāhanga piko i te ōrite. I muri i te whakarōpūtanga, ka hangaia he porowhita tata me te piko kore taurite, ā, ka whakauruhia ki roto i te anga whakarewa i muri i ngā anga hanga pai e rua. He tukanga hanga motumotu te pūnaha, ā, he āhua ki te totoro i te taha o te rīpene maitai. Hei whakaiti i te teitei hanga, ka whakamahia te tikanga hanga W. I roto i ēnei, e rima ngā huinga rōra papatahi me te whā ngā huinga rōra poutū he rōra tiritahi. Mō ngā paipa maitai o ngā whakaritenga rerekē, kāore he take ki te whakakapi i ngā rōra, me whakatikatika noa iho. Ka whakatauhia e ia te raruraru o te maha o ngā rōra hanga-hurihuri me te wā roa mō te whakawhiti rōra.
Painga：
Ka taea e te huinga rōra te whakaputa i ngā ngongo porowhita o tētahi whakatakotoranga i roto i te awhe Ф89~Ф165 i mua i te rōra kati.
Ko te tikanga hanga ZTF e whakamahi ana i tētahi tukanga hanga ngāwari i te wāhanga noa, e whakapai ake ana i te roa o te ora o te rōra.
He poto te wā huri-pōkai, ka whakaiti i te kaha o te mahi, ā, ka whakapai ake i te pai o te whakaputa.
Wā tuku: Hui-tanguru-04-2023
