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 tonu te kamupene i tētahi tūranga nui i roto i ngā rāngai hanga me ngā hanganga. Ahakoa kei roto koe i tētahi kaupapa hanga nui, kei te hiahia rānei koe i tētahi otinga paipa pono, he kōwhiringa pai rawa atu te paipa ASTM A252 mō ō hiahia.