Ko ngā tikanga whakarewa e whakamahia whānuitia ana i roto i te hanganga o ngā paipa whānui-rahi e kawe ana i ngā wai pērā i te hau māori, te hinu rānei, ko te whakarewa pewa ruku taha-rua (DSAW) me te whakarewa pewa ruku roa (LSAW).
whakarewa porowhita
Paipa Rino DSAW:
Te Whakarewatanga Roa
Te Whakarewatanga Roa
Ko te LSAW tētahi o ngā momo DSAW.
Ko te DSAW he kupu whakarāpopoto mō te "double-sided submerged arc welding," he kupu e whakanui ana i te whakamahinga o tēnei tikanga.
Ko te tikanga o LSAW ko te "Longitudinal Submerged Arc Welding," he tikanga e tohuhia ana e ngā whakapiri e toro ana i te roanga o te paipa.
He mea nui kia mōhiotia kei roto i te DSAW ngā momo paipa SSAW (Spiral Submerged Arc Welding) me te LSAW.
Ko te tūhura i ngā āhuatanga ōrite me ngā āhuatanga rerekē i waenga i te DASW me te LSAW he whakataurite i waenga i te SSAW me te LSAW.
Ngā āhuatanga ōrite
Hangarau Whakarewa
E whakamahi ana a DSAW me LSAW i te tikanga whakarewa pewa ruku-rua (SAW), arā, ka mahia te whakarewa i ngā taha e rua o te maitai i te wā kotahi hei whakapai ake i te kounga me te urunga o te whakarewa.
Ngā tono
E whakamahia whānuitia ana i ngā horopaki e hiahiatia ana ngā paipa maitai kaha teitei, me te whānui nui, pērā i ngā paipa hinu me te hau.
Āhua o te Tuitui Whakarewa
He hononga whakarewa e kitea nuitia ana i roto, i waho hoki o te paipa rino.
Ngā Rerekētanga
Momo whakarewa
DSAW: Ka taea te hanga tika (whakapiripirihia i te roanga o te paipa) te hanga porowhita rānei (whakapiripirihia kia porowhita huri noa i te tinana o te paipa), i runga i te whakamahinga me ngā whakaritenga o te paipa.
LSAW: Ka taea anake te hononga whakarewa ki te taha roa, arā, ka mīhinihia te pereti maitai ki roto i te ngongo, ā, ka whakarewahia i tōna roanga roa.
Arotahi ki ngā tono paipa maitai
DSAW: I te mea he tika, he porowhita rānei te DSAW, he pai ake mō ngā momo pēhanga me ngā diameter rerekē, inā koa ka hiahiatia he paipa roa rawa. He pai ake te DSAW porowhita.
LSAW: He tino pai ngā paipa maitai LSAW mō ngā hanganga tāone me ngā tono pēhanga teitei pērā i te kawe wai me te hau.
Te Mahi Paipa
DSAW: Kāore te paipa whakarewa porowhita i te rite te mahi ki te LSAW e pā ana ki te manawanui ki te ahotea.
LSAW: Nā te tukanga hanga pereti maitai mā te whakamahi i te JCOE me ētahi atu tukanga hanga, ka taea e te pakitara paipa maitai LSAW te tu atu ki ngā āhuatanga miihini ōrite ake.
Te Utu me te Whai Hua o te Whakaputa
DSAW: He iti ake te utu, he tere ake hoki te hanga i te paipa DSAW ina whakapirihia ki te taura porowhita, ā, he pai hoki mō ngā paipa tawhiti.
LSAW: Ahakoa he kounga teitei ake te whakarewa tuitui tika, he nui ake te utu, he puhoi ake hoki te whakaputa, ā, he pai hoki mō ngā tono he tino kaha ake ngā whakaritenga kounga.
Ko te whiriwhiri i te DSAW, i te LSAW rānei, ka whakawhirinaki ki ngā whakaritenga motuhake o te kaupapa, tae atu ki te tahua, ngā pēhanga e tika ana kia tū atu te paipa, me te uaua o te hanga me te tāutanga. Mā te mārama ki ēnei āhuatanga ōrite me ngā rerekētanga matua ka āwhina i te whakatau tika ake mō tētahi tono hangarau motuhake.
Wā tuku: Paenga-whāwhā-24-2024