GB / T 3091 "Welded steel pipe for low pressure fluid transport" (2015 version of the standard version) ua ʻae ʻia e ka National Standardization Committee a hoʻokuʻu ʻia, mai Iune 01, 2016 ka hoʻokō maʻamau;I ka manawa like, ʻaʻole kūpono ka mana maʻamau GB/T 3091-2008!
Ka wehewehe ʻana i nā mea nui o ka National Standard hou:
1. Kaumaha galvanized - "Laina lalo"
Ma ke kūlana aupuni hou, ma ka papa kuhikuhi zinc paona o ka paipu kila galvanized no ka manawa mua e kau i mua i nā "koi laina lalo"!ʻO ia hoʻi: ma ka mana kahiko o ka maʻamau "mau huaʻōlelo kūkākūkā" wale nō ma ke kumu o ka hoʻonui ʻia ʻana o ka "paipu kila i loko a me waho o ka ʻili galvanized layer ʻāpana āpau ʻaʻole pono e emi iho ma mua o 300g/m²" nā koi maʻamau.
ʻO ka hopena, ua hoʻonui ʻia ke ola maʻamau o ka paipu kila ma ka liʻiliʻi loa he 30%!!
2. Hopena paipu
ʻO nā paipu kila me ke anawaena o waho ʻaʻole i ʻoi aku ma mua o 114.3mm(4 iniha a i ʻole ka liʻiliʻi) pono e palahalaha me ka mīkini (me ka ʻole o nā burrs ma ka hopena).
3. Hoʻoponopono hoʻoponopono i nā hemahema
Ma hope o ka hoʻoponopono hou ʻana i ka maʻamau hou, ua hoʻololi ʻia ka hoʻoponopono ʻana i nā hemahema i: ʻaʻole ʻae ʻia ka hoʻoponopono ʻana i ka wiliwili uila me ka anawaena o waho ma lalo o 219.1mm.
Hoʻohālikelike: ʻAʻole ʻae ʻia ʻo GB / T3091-2008 "ʻaʻole ʻae ʻia ka paipu kila me ke anawaena o waho ma mua o 114.3mm e hoʻoponopono i ka welding, paipu kila me ke anawaena o waho ʻaʻole i emi iho ma lalo o 114.3mm, hiki ke hoʻoponopono i nā hemahema ma ke kumu metala a weld."
4. Ka mānoanoa o ka pā
ʻO ka maʻamau hou e kuhikuhi ana i ka waiwai liʻiliʻi o ka mānoanoa o ka paia o ka paipu kila, ʻo ia hoʻi, ʻo ka Papa 1 "Nominal anawaena, waho anawaena, Nominal Wall mānoanoa a me uncircularity o Steel paipu me ka waho anawaena aole i oi aku mamua o 219.1mm" ua hoʻohuiʻia, e hāʻawi ana i kahi. kumu pololei no ka hoʻolālā ʻana a me ke koho ʻana i nā mea o nā ʻāpana hoʻolālā ʻenekinia.
Ø ʻAʻole ʻae ʻia ka paipu kila me ka mānoanoa o ka paia ma lalo o ** liʻiliʻi e hana maʻamau GB/T3091-2015!!
5. Hoailona paipu kila
'Ōlelo ke kūlana hou: "ʻO ka hōʻailona ʻana i nā paipu kila e loaʻa i ka liʻiliʻi ma lalo iho nei: ka inoa o ka mea hana a i ʻole ka inoa inoa, ka helu maʻamau o ka huahana, ka helu brand kila, ka kikoʻī o ka huahana a me ka helu ʻike hiki."
Aia ka hōʻailona paipu kila i ka lepili huahana a me ke code kino paipu.Inā nalo kekahi o nā ʻike ma luna, he kānāwai ʻole ia.
Ka manawa hoʻouna: Jul-09-2022