He aha te rerekētanga i waenganui i te Astm A53 me te A252?

He aha te paipa ASTM A252?

Ko te ASTM A252 he whakaritenga whai mana i hangaia e te American Society for Testing and Materials (ASTM), mō ngā paipa rino e whakamahia ana i roto i ngā mahi taraiwa pou me ngā mahi tautoko hanganga hohonu. E āta whakaritea ana e tēnei paerewa te hanganga matū, ngā āhuatanga miihini, ngā ātete ā-ahu me ngā tikanga whakamātautau o ngā paipa rino, kia tino tika ai te hanganga, te pakari me te kaha ki te kawe kawenga. He kōwhiringa pai mō ngā kaupapa turanga pēnei i ngā Piriti, ngā whare teitei me ngā tauranga.

Ngā Ahu Paipa Astm A252ngā ine me ngā whakaritenga

E toru ngā momo o ngā paipa ASTM A252 e ai ki ngā whakaritenga kaha: GR 1, GR 2, me GR 3, ā, ko te momo GR 3 te mea tino kaha. He ngāwari te whānuitanga o tōna rahi, ā, ka taea te whakatutuki i ngā whakaritenga hangarau rerekē.

Diameter o waho (OD): Mai i te 6 inihi ki te 60 inihi, ā, ka taea te whakaputa i ngā rahi nui ake.

Te matotoru o te pakitara (WT): I te nuinga o te wā kei waenganui i te 0.188 inihi me te 0.500 inihi, ā, ka taea te whakarite kia rite ki ngā whakaritenga o te ātete pēhanga me te ātete piko.

Roa: Ko te roa paerewa he 20 putu, 40 putu rānei. Ka tautokona hoki te hanga ritenga kia rite ki ngā whakaritenga o te kaupapa.

Mā te whānuitanga o ngā rahi ka taea e ngā kaihangarau te whiriwhiri i ngā whakaritenga tino whai hua mō ngā kaupapa motuhake.

He maha ngā whakamahinga o te paipa ASTM A252, tae atu ki:

1. Te poupou: He maha ngā wā ka whakamahia ēnei paipa hei pou whenua i roto i ngā kaupapa hanga hei whakarato i te pumau me te tautoko i te hanganga.
2. Ngā Piriti: Nā te kaha me te pakari o te paipa ASTM A252 he mea tino pai mō te hanga piriti, ka taea te tu atu i ngā kawenga taumaha me ngā āhuatanga taiao.
3. Ngā Hanganga Moana: Nā te ātete o ēnei paipa ki te waikura ka taea te whakamahi i roto i ngā mahi moana pēnei i ngā tauranga me ngā pou.
4. Hinu me te Hau: Nā te kaha o tōna hanganga, ka whakamahia hoki te paipa ASTM A252 i roto i te umanga hinu me te hau hei kawe i ngā wai me ngā hau.

Hei whakarāpopototanga

He whakarāpopototanga noa iho, he wāhanga nui te paipa ASTM A252 mō te whānuitanga o ngā mahi hanganga, e whakarato ana i te pono me te kaha. Ko tēnei wheketere i Cangzhou, Porowini o Hebei, he kaihanga matua o tēnei momo paipa, e whakarite ana kia tutuki i ana hua ngā paerewa kounga teitei. Me te whakapau kaha ki te hiranga me te arotahi ki te auahatanga, kei te whai wāhi tonu te kamupene ki ngā rāngai hanga me ngā hanganga. Ahakoa kei te whai wāhi koe ki tētahi kaupapa hanga nui, kei te hiahia rānei koe ki tētahi otinga paipa pono, he kōwhiringa pai rawa atu te paipa ASTM A252 mō ō hiahia.