I. Fa'amatalaga o oloa
GB/T9948-2013paipa u'amea seamless o se paipa u'amea sili ona lelei e fa'aaoga faapitoa mo le ta'eina o le suauu, ma e fa'aaogaina lautele i meafaigaluega autu e pei o fa'aauumu, exchangers vevela ma paipa mamafa i le suau'u refineries. O lenei tulaga faʻatonuina faʻatonuina le meafaitino, gaosiga o gaosiga ma le faʻatinoga o manaʻoga o paipa uʻamea e faʻamautinoa ai lo latou faʻaogaina mautu i le maualuga o le corrosion, maualuga le vevela ma le maualuga o le siosiomaga.
2. Meafaitino ma faatinoga
1. Mea autu
GB/T9948-2013o paipa u'amea lamolemole e faia i le tele o mea u'amea maualuga, e aofia ai:
Uamea faufale kaponi:20G, 20MnG, 25MnG
u'amea fa'ameamea:15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB
u'amea uamea ma u'amea fa'avevela: 1Cr18Ni9, 1Cr18Ni11Nb
2. Fa'atinoga autu
Tete'e maualuga o le vevela: E fetaui mo faiga maualuga-vevela e pei ole ta'e ole suauu (e o'o ile 600°C pe sili atu).
Faʻasagaga maualuga: O mea e faʻamalosia ai le malosi e faʻamautinoa ai le saogalemu o le faʻaogaina o paipa i lalo ole siosiomaga maualuga.
Tete'e a'e: O vaega fa'amea fa'apitoa e fa'afitia lelei ala fa'a'ala'au e pei ole hydrogen sulfide ma carbon dioxide.
Faʻalagolago maualuga: Faʻatonuina lelei le faʻamautinoaina o mea faʻainisinia ma vailaʻau faʻapipiʻi o paipa uʻamea e fetaui ma le tulaga GB / T9948.
3. Fa'agasologa o le gaosiga
GB/T9948-2013 paipa u'amea seamless e gaosia e ta'avale vevela ma ata malulu (ta'avale):
Fa'asagaga ta'avale vevela: pili fa'a'au'au lapotopoto → fa'avevela → ta'avale → ta'avale → sizing → malulu → fa'asa'o → asiasiga lelei → teuina.
Fa'asologa o ata (ta'avale) malulu: fa'aoso → pikiina → ata malulu → togafitiga vevela → fa'asa'o → iloa o mea leaga → maka → teuina.
O faiga uma e lua e mautinoa ai le maualuga o le saʻo, lamolemole luga ma mea faʻainisinia sili ona lelei o paipa uʻamea.
4. Fa'aoga fanua
GB/T9948 suauu ta'e paipa e lautele faaaogaina i:
Alamanuia Petrochemical: ta'e iunite, hydrogenation reactor, catalytic toe fuataina meafaigaluega
Alamanuia fa'amama suau'u: fa'aauaumu vevela maualuga, fa'afesuia'i vevela, paipa maualuga
Felauaiga kasa fa'alenatura: fa'a'a'a'a'e, maualuga-omiga kasa felauaiga paipa
Fa'afuga faufale: fa'afuga eletise, faiga fa'aapa paipa faufale fa'apisinisi
5. Fa'amoemoega maketi
Faatasi ai ma le televave o le atinaʻeina o pisinisi petrochemical i totonu o le atunuʻu ma le faʻatupulaia o manaʻoga maketi faavaomalo, o le faʻatauga o le GB / T9948 paipa uamea e faʻaauau pea ona tulaʻi mai. O lona maualuga maualuga le tete'e o le vevela ma le corrosion e avea ma mea e sili ona fiafia i ai paipa i fanua o le suauu ta'e ma faamamaina.
6. Puipuiga mo le faʻatau ma le faʻaaogaina
Filifiliga meafaitino: Filifili mea talafeagai GB / T9948 (e pei o 12CrMoG, 15CrMoG, ma isi) e tusa ai ma tulaga faigaluega (vevela, mamafa, corrosiveness).
Tulaga lelei: Faʻamautinoa o le paipa uʻamea e fetaui ma le GB / T9948-2013 tulaga ma tuʻuina atu se lipoti o asiasiga a isi vaega.
Fa'apipi'i ma le tausiga: Aloese mai le fa'aleagaina o masini i le taimi o felauaiga ma fa'apipi'i, ma siaki pea le pala o paipa ma tulaga mamafa.
GB / T9948-2013 suauu ta'e paipa ua avea ma se filifiliga lelei mo petrochemical, faamamaina, kesi faalenatura ma isi alamanuia ona o lona lelei o le maualuga o le vevela tetee, maualuga le mamafa tetee ma corrosion tetee. Filifilia o mea talafeagai (pei o le 12CrMoG, 15CrMoG, ma isi) ma le mulimulitaʻi i tulaga faʻataʻitaʻiga e mafai ona faʻamautinoa ai le saogalemu ma le mautu o le paipa.
upu autu:#Petroleum ta'e paipa, #GB/T9948, #GB/T9948-2013 paipa u'amea seamless, #Petroleum ta'e paipa u'amea, #12CrMoG, #15CrMoG, #O le vevela maualuga ma le maualuga o le mamafa o paipa u'amea, #Petrochemical pipeline
Taimi meli: Iuni-09-2025
