Ko ngā paipa whakarewa-ā-roto-roa mō te paipa LSAW he momo paipa rino e hono ana te hononga whakarewa ki te paipa rino, ā, ko ngā rauemi mata he pereti rino, nō reira ka nui ake te matotoru o te pakitara o ngā paipa LSAW hei tauira 50mm, ko te diameter o waho he 1420mm te teitei rawa. Ko te painga o te paipa LSAW he māmā te tukanga whakaputa, he pai te whakaputa, he iti te utu.
Ko te paipa DSAW he momo paipa maitai honohono porowhita i hangaia ki te koiri maitai hei rauemi mata, he maha ngā wā ka whakamahanahia, ka whakapirihia mā te tukanga whakapiri pewa rua-taha aunoa. Nō reira, ko te roa kotahi o te paipa DSAW ka taea te 40 mita, ko te roa kotahi o te paipa LSAW he 12 mita noa iho. Engari ko te matotoru mōrahi o te pakitara o ngā paipa DSAW ka taea te 25.4mm nā te iti o ngā koiri hurihuri wera.
Ko tētahi āhuatanga tino pai o te paipa rino porowhita ko te whānui o waho ka taea te hanga kia tino nui, ka taea e Cangzhou Spiral Steel Pipes Group Co.ltd te whakaputa paipa diameter nui me te diameter o waho 3500mm te tino. I te wā e hangaia ana, ka rite te ahua o te koiri rino, he iti te ahotea toenga, ā, kāore te mata e rakuraku. He nui ake te ngāwari o te paipa rino porowhita kua tukatukahia i roto i te whānuitanga rahi o te diameter me te matotoru o te pakitara, inā koa i roto i te hanga paipa kounga teitei, matotoru pakitara nui, me te diameter iti me te matotoru pakitara nui, he painga kore e taea te whakataurite ki ētahi atu tukanga. Ka taea e ia te whakatutuki i ngā whakaritenga paipa rino porowhita. Ka taea e te tukanga whakarewa pewa rua-taha matatau te whakatutuki i te whakarewa i te tūranga pai rawa atu, ehara i te mea ngawari ki te whai hapa pēnei i te he o te whakatakotoranga, te pekapeka whakarewa me te kore e oti te uru, ā, he ngawari ki te whakahaere i te kounga whakarewa. Heoi, ki te whakataurite ki te paipa tuitui tika me te roa rite, ka piki ake te roa whakarewa mā te 30 ~ 100%, ā, he iti te tere whakaputa.
Wā tuku: Whiringa-ā-rangi 14-2022