I roto i ngā mara o te hanga me te miihini ā-iwi, he pānga nui ngā rauemi e whakamahia ana ki te roa me te haumaru o te kaupapa. Ko tētahi o ngā rauemi e tino whakautehia ana i roto i te umanga ko ngā puranga paipa rino, inā koa ko ērā e tutuki ana i te paerewa ASTM A252. He mea nui te mārama ki tēnei paerewa mō ngā miihini, ngā kaimahi kirimana, me ngā kaiwhakahaere kaupapa, nā te mea ka whakarite kia tutuki ngā rauemi e whakamahia ana i ngā paerewa kounga me te mahi motuhake.
Ko te paerewa ASTM A252 e pā ana ki ngā puranga paipa maitai pakitara ingoa porotaka. Kua hangaia ēnei puranga hei whakamahi hei mema pikau kawenga tuturu, hei whare rānei mō ngā puranga raima kua makahia ki te wāhi. Nā tēnei whānuitanga o te whakamahinga, he mea nui ēnei i roto i ngā momo mahi hanga, tae atu ki ngā turanga o ngā piriti, ngā whare, me ētahi atu hanganga e hiahia ana ki ngā turanga hohonu.
Ko tētahi o ngā kaupapa matua o teASTM A252Ko te paerewa matua ko tōna arotahi ki ngā āhuatanga ā-pūkaha o te maitai e whakamahia ana i roto i ngā puranga paipa. E whakamārama ana te paerewa i ngā whakaritenga mō te kaha tuku, te kaha kume, me te roa kia taea ai e te maitai te tu atu i ngā kawenga me ngā ahotea ka pā ki a ia i roto i tōna roanga mahi. Hei tāpiri, e whakamārama ana te paerewa i ngā tikanga e whakaaetia ana mō te whakamātautau i ēnei āhuatanga, e whakarato ana i tētahi anga mō te whakapumautanga kounga.
Mō te hanga, me tutuki e ngā kamupene e hanga ana i ngā puranga paipa rino te paerewa ASTM A252 kia pono ai, kia haumaru ai hoki ā rātou hua mō te hanga. Hei tauira, he kamupene e 680 miriona tāra te nui o ngā rawa me te 680 kaimahi e whakaputa ana i te 400,000 tāne o ngā paipa rino porowhita i ia tau, ā, ko te uara whakaputa he 1.8 piriona tāra RMB. He mahi nui tā ēnei kamupene i roto i te mekameka tuku, e whakarato ana i ngā rauemi kounga teitei e tutuki ana i ngā paerewa ahumahi.
Te tukanga whakaputa opuranga paipa maitaihe maha ngā mahi e whai wāhi ana ki tēnei, tae atu ki te whiriwhiri rauemi mata, te hanga paipa me te paninga tiaki. Me tino whakahaere ia mahi kia tutuki ai ngā whakaritenga e ai ki te paerewa ASTM A252. Hei tauira, me ahu mai te maitai e whakamahia ana i ngā kaiwhakarato rongonui e taea ai te whakarato tiwhikete mira e whakaatu ana kei te tutuki te rauemi i ngā whakaritenga e hiahiatia ana.
Hei tāpiritanga, e kapi ana te paerewa ASTM A252 i ngā tukanga whakarewa me te hanga e whakamahia ana hei hanga i ngā pou ngongo. He mea nui ngā tikanga whakarewa tika hei pupuri i te hanganga o ngā pou ngongo, ā, e whakarato ana te paerewa i ngā aratohu hei whakarite kia tika te mahi whakarewa me te tirotiro pai.
I te katoa, he mea nui te paerewa ASTM A252 mō te hunga katoa e mahi ana i roto i te umanga hanga, inā koa mō te whakamahinga o ngā puranga paipa maitai. Mā te mārama ki ngā whakaritenga o tēnei paerewa ka āwhina kia mau tonu te pakari o ngā kaupapa, kia whakamahia hoki ngā rauemi ka tu tonu i roto i te whakamātautau o te wā. He mea nui te mahi a ngā kamupene e whakaputa ana i ēnei rauemi, pērā i ngā mea kua whakahuatia i mua ake nei, i roto i te umanga mā te whakarato i ngā hua kounga teitei e tutuki ana i ngā paerewa pakari. I te whanaketanga tonu o ngā kaupapa hanga, he mea nui te noho tonu ki ngā paerewa pērā i te ASTM A252 mō te angitu i roto i te mara.
Wā tuku: Paenga-whāwhā-10-2025