E whakamārama ana te paerewa EN877 i ngā whakaritenga mahi ongā paipa rino maka, ngā taputapumeā rātou honongae whakamahia ana i roto i ngā pūnaha rerenga wai ā-papa i roto i ngā whare.EN877:2021koinei te putanga hou o te paerewa, hei whakakapi i te putanga EN877:2006 o mua. Ko ngā rerekētanga matua i waenga i ngā putanga e rua e pā ana ki te whakamātautau koia ēnei:
1. Whānuitanga whakamātautau:
EN877:2006: Te whakamātautau matua i ngā āhuatanga ā-pūkaha me ngā āhuatanga hiri o ngā paipa me ngā hononga.
EN877:2021: I runga anō i te whakamātautau taketake, i tāpirihia ngā whakaritenga whakamātautau mō te mahi ārai haruru, te ātete ki te waikura matū, te ātete ki te ahi me ētahi atu āhuatanga o te pūnaha paipa.
2. Ngā tikanga whakamātautau:
Ka whakahoutia e te EN877:2021 ētahi tikanga whakamātautau kia pai ake ai te pūtaiao me te whaitake, pēnei i:Whakamātautau ātete waikura matū: Ka whakamahia ngā otinga whakamātautau hou me ngā tikanga whakamātautau, pērā i te whakamahi i te otinga waikawa whanariki pH2 hei utu mō te otinga waikawa hauwai taketake, me te tāpiri i ngā whakamātautau ātete waikura mō ētahi atu matū.
Whakamātautau mahi oro: Kua tāpirihia ngā whakaritenga whakamātautau mō te mahi ārai oro o te pūnaha paipa, pērā i te whakamahi i te tikanga taumata pēhanga oro hei ine i te ārai oro o te pūnaha paipa.
Whakamātautau mahi ahi: Kua tāpirihia ngā whakaritenga whakamātautau mō te mahi ātete ahi o te pūnaha paipa, pērā i te whakamahi i te tikanga here ātete ahi hei whakamātautau i te pono o te pūnaha paipa i raro i ngā āhuatanga ahi.EN877:2021 e whakamahi ana i te peita ātete ahi me te tohu A1
3. Ngā whakaritenga whakamātautau:
Kua whakapiki ake a EN877:2021 i ngā whakaritenga whakamātautau mō ētahi tohu mahi, pēnei i:Kaha kume: kua piki ake mai i te 150 MPa ki te 200 MPa.
Te roa: kua piki ake i te 1% ki te 2%.
Ātete ki te waikura matū: Kua tāpirihia ngā whakaritenga ātete waikura mō ētahi atu matū, pērā i ngā whakaritenga ātete waikura mō ngā matū kawakore pērā i te hauwai konutai me te hauwai pāhare pāporo.
4. Pūrongo whakamātautau:
He tino kaha ake ngā whakaritenga a te EN877:2021 mō ngā ihirangi me te whakatakotoranga o te pūrongo whakamātautau, pēnei i:E hiahiatia ana kia whakaurua e te pūrongo whakamātautau ngā mōhiohio taipitopito pēnei i ngā tikanga whakamātautau, ngā tikanga whakamātautau, ngā hua whakamātautau, me ngā whakatau.
Me tuku te pūrongo whakamātautau e tētahi tari whakamātautau whai mana. Hei tauira,Kua whakamanahia a DINSEN e CASTCO.
He whānui ake, he pakari ake hoki te whakamātautau o te paerewa EN877:2021 i te paerewa EN877:2006, e whakaata ana i ngā whanaketanga hangarau hou me ngā tono mākete i roto i te umanga paipa rino maka. Mā te whakatinanatanga o te paerewa hou ka āwhina i te whakapai ake i te kounga o ngā hua paipa rino maka, ā, ka whakatairanga i te haumaru me te pono o ngā pūnaha waikeri whare.
EN877:2021 vs EN877:2006
Wā tuku: Maehe-17-2025
