API 5L X70 Soudure Line Pipe Sɛgɛsɛgɛli

API 5L layini pipe grades bɛ fanga hakɛ caman dafa;X70bɛ sanfɛla bandi minɛ yɔrɔ min na dilanbagaw bɛ se ka foro soldacogo nafamaw se hali bi. Gazi sira jan-jan caman ani jagokɛlaw ka pibilikiw bɛ taa X70 la kɛrɛnkɛrɛnnenya la ka taatigɛ kogo janya ni nɛgɛ tɔni hakɛk’a sɔrɔ a ma dilancogo degun dɔgɔya. O fanga caman ni welda min bɛ se ka kɔrɔsi, o faralen ɲɔgɔn kan, o b’a ɲɛfɔ mun na X70 ka teli ka X60/X65 bila a nɔ na sira kura kan, sira kura minnu bɛ se ka kɛ{4}}seko ye.Dizayina bolifɛnw cogoyaw ye:

• Baarakɛ tansiyɔnba min ka bon gazi cili la yɔrɔjan-yɔrɔjan
• Aw bɛ pibiliki girinya dɔgɔya dugukolo nɔgɔlen kan walima yɔrɔ gɛlɛnw kan
• Jagokɛyɔrɔ minnu bɛ tali kɛ kɔgɔjida la yiriwaliw la, sira janya bɛ nɛgɛ musaka bonya yɔrɔ minnu na
• Aw bɛ kɔri minnu bɛ yen, aw bɛ olu siri walima ka u kɔrɔta ka sɔrɔ ka kogo janya to dan na min bɛ se ka jɔ

Ni poroze dɔ datugulen don X70 kɔnɔ dɔrɔn, a ka c’a la, fɛnw ɲɛfɔli bɛ ɲɛfɔPSL nivo, soudure produit form ani coating hakilinafaralen ɲɔgɔn kan, o kɔfɛ, a bɛ NDT, sɛbɛnni ni jɔli wajibiyalenw fara o sugandili jɔnjɔn lamini kan.

Sɛbɛn min bɛ tali kɛ o laAPI 5L X70 soudure layini pipeye API 5L sariya ye, min bɛ bɛn ISO 3183. Porozɛw ɲɛfɔli ka teli ka wele bila nin faralen ninnu dɔ ma:

• X70 PSL1 ye– layini pipe welded ka ɲɛsin transmission service general ma
• X70 PSL2 ye– layini pipe welded ni a danfara ka gɛlɛn, a gɛlɛya sariyaw ani a nɔfɛtaama

API 5L bɛ fɛnw bɛɛ lajɛlen ɲɛfɔ minnu tɛ sɔgɔsɔgɔ ani minnu dilannen don, nka yɔrɔ jan-yɔrɔjan,-janya sitɛmuw bɛ u jigi da u kan kosɛbɛsouded X70 ye. PSL2 welded pipe kama, a ka c’a la, poroze sɛbɛnw b’a fɔ ko:

• Jigincogo (TMCP walima Q+T, ka kɛɲɛ ni plati/bobine sira ye)
• Charpy ka kan ka nɔ bila funteni na ani fanga min bɛ minɛ
• NDT scope ani frequency ka ɲɛsin weld seam ni pipe farikolo ma
• Traceability sariyaw k’a ta nɛgɛ funteni na ka se pipe dafalen ma, sɛgɛsɛgɛli jaabiw ani finiko sɛbɛnw fana sen bɛ o la

O kɔfɛ, Mill procedures ani inspection & test plans (ITP) bɛ o wajibiw baara ka kɛ fɛn dilanni taabolo ye ani misali tacogo bolodalenw.

X70 ka taamaʃyɛn ye a ta yesɔrɔ fanga dɔgɔyalenba kofɔlen (SMYS) .ka70.000 psi (≈ 485 MPa) ye .API 5L kɔnɔ. Nin sɔrɔ hakɛ cayalenba in de b’a to dilanbagaw bɛ kogo janya dɔgɔya ni i y’a suma ni X60/X65 ye dilancogo degun kelen na.

Tablo 1 – Masina cogoya fitininw danmadɔw (reference):

Kɔrɔlen-fanga dilancogo kɔlɔsiliw:

• SMYS sanfɛla bɛ kogo finmanw kɛ se ka kɛ ni kɔnɔna tansiyɔn dilen ye, nka o kɔfɛ, dilanjɛkuluw bɛ u janto kosɛbɛ ovalité, local buckling ani kɛnɛma doni na, kɛrɛnkɛrɛnnenya la suturalenw ni kɔgɔjida la baara kama.
• SMTS bɛ fara ɲɔgɔn kan ni kari kɔlɔsili jatebɔw ye walasa ka faraw minɛcogo jateminɛ, o min nafa ka bon kosɛbɛ gazi sira janw kan.
• Janya ka kan ka to ka se foro nɛnɛma kuruli ma, siri-ins ani dugukolo lamagacogo ma; porozɛ caman bɛ se ka ben ni girth welds kɛ representative X70 pipe kan sanni full production welding ka daminɛ.

PSL2 X70 porozɛw ka teli ka ɲɛfɔli kɛCharpy V-notch ka sɛgɛsɛgɛliwfunteni hakɛ dantigɛlen dɔ la. Tuma caman na, kogo gɛlɛnw-kogo ni gazi cikanw bɛ fara ɲɔgɔn kanDWTT (drop-kisɛ ɲɛjibɔ sɛgɛsɛgɛliw) .walasa ka dɛmɛ don kariw jɛnsɛnni kunbɛnni na.

Fɛn dilanni sira jɔyɔrɔ ka bon X70 bɛ baara kɛ cogo min na ni a sigilen don. Gazi ni tulu porozɛbaw caman na, minnu janya ka bon, minnu ka bon-,LSAW (SAWL) bɛ jate i n’a fɔ sugandi fɔlɔ, k’a sɔrɔ ERW/HFW ni SSAW bɛ baara kɛ yɔrɔ minnu na u cɛmancɛ n’u bonya seko bɛ bɛn dilancogo anwɛlɛki ma.

1 LSAW / SAWL – Siraba min bɛ kɛ ka ɲɛsin jirisunw ma minnu fanga ka bon-

LSAW X70 pipe bɛ dilan ka bɔplati belebelebamin dilannen don ni UOE walima JCO baarakɛcogo ye ani ka welda nifila-kɛrɛfɛ submerged arc welding. O faralen ɲɔgɔn kan, o bɛ dɛmɛ doncɛmancɛ belebelebaw ani kogo girinmanw, yɔrɔ tigitigi min ka kan ka kɛ gazi jirisun janw ni kɔgɔjida la fɛnw bɔli siraw la minnu bɛ boli ni degunba ye. Foroko ni solda paramɛtɛrɛw bɛ sigi sen kan walasa plati fanga, welda fanga ani HAZ gɛlɛya bɛɛ ka X70 wajibiyalenw dafa lamini dafalen lamini na.

LSAW X70 ka fɛnsɛbɛnniw bɛ kɛ cogo min na, olu ye:

• UT dafalen-janya ye welda seam ni pipe farikolo ye, ni RT ye yɔrɔ ɲɛfɔlenw na yɔrɔ minnu na a mago bɛ a la
• Degun-funteni furakɛli min bɛ kɛ sababu ye ka funteni furakɛ kogow kan minnu ka bon- walasa ka degun tolenw dɔgɔya ani ka hakɛw kɔlɔsili ɲɛ
• Muɲuli gɛlɛnw kan out-of-roundness ani straightness kan walasa ka foro kɔrɔtacogo ni kɔgɔjida la sigili dɛmɛ
• Sampling yɔrɔ minnu ɲɛfɔlen don basigi nɛgɛ la, HAZ ani weld nɛgɛ la walasa ka sɔgɔsɔgɔninjɛ ni sɔgɔsɔgɔninjɛ sɛgɛsɛgɛliw kɛ

Nin ɲagaminen in nafanga caman, kogo-kɛrɛnkɛrɛnnenya seko ani jateminɛ kɛcogo ɲumanb’a ɲɛfɔ mun na LSAW ka teli ka kɛ fɛn dilanni sira fɔlɔ ye min bɛ jateminɛ ni porozɛ dɔ ye X70 ɲɛfɔ jirisun kuraw kama.

2 ERW / HFW ani SSAW – Sira dafalenw

LSAW tɛ cɛmancɛ ni kogo-janya faralen ɲɔgɔn kan, o bɛɛ datugu.ERW/HFW ani SSAWka yɔrɔw fa ani ka marabolow ka ɲininiw dɛmɛ :

ERW / HFW X70 ye

• A bɛ dilan ni bobine funteniman-kurulen ye, ka sɔgɔ ani ka dilan ka sɔrɔ ka sɔgɔli janya{1}}fɛrɛkan caman kɛ.
• A bɛ kɛ kɛrɛnkɛrɛnnenya la cɛmancɛ misɛnninw ni cɛmancɛw la minnu kogo janya bɛ se ka kɛ dugukolo-sisɛtiw la, jirisunw na ani garasi pibilikiw kɔnɔ.
• Weld seam quality bɛ kɔlɔsi ɛntɛrinɛti NDT fɛ ​​(UT/EC); PSL2 sɛgɛsɛgɛliw bɛ se ka wele bila sigida PWHT ma welda kɔnɔ ani HAZ.

SSAW / SAWH X70 ye

• A dilannen don ni bobine ye min dilannen don ni angle helical ye ni kɔnɔna ni kɛnɛma submerged arc welds ye.
• A bɛ fɛnw baaracogo ɲuman di diamètre belebelebaw ma yɔrɔ minnu na spiral seams bɛ sɔn ka kɛɲɛ ni design code ni poroze ɲɛfɔli ye.
• A ka c’a la, a bɛ di ni UT dafalen-janya ye spiral weld la, ka fara RT kan yɔrɔ min na poroze bɛ hakilisigi wɛrɛw ɲini.

Sira bɛɛ bɛ Labɛn walasawelda ni HAZ nafaw tɛ barika dɔgɔya ka tɛmɛ X70 bangebaga fɛnw kan, o ye yɔrɔ koloma ye ni kalasi bɛ kɛ ni degunba ye.

3 UOE ni JCOE Forming ka ɲɛsin X70 LSAW Pipe ma

Plate forming fɛɛrɛ bɛ nɔ tilennen bila ovalité (ovalité) kɔlɔsili la, residual stress distribution (degun tolenw tilatilali) ani dimensional stability (yɔrɔ bɛɛ lajɛlen) sabatili la. X70 LSAW ta la, u fila bɛɛUOEaniJCOE yelayiniw bɛ baara kɛ kosɛbɛ, wa porozɛ jɛkuluw bɛ ɲininkali kɛ tuma dɔw la u bɛ ɲɔgɔn sanga cogo min na ka bɔ ɛntɛrinɛti siratigɛ la.

Tablo 2 – UOE ni JCOE foroko sumalen X70 LSAW layini pibiliki la :

A ka c’a la, sugandili bɛ kɛ UOE ni JCOE cɛ, o bɛ bɔ mansinw labɛncogo ni porozɛw ɲagaminen na ka tɛmɛ baarakɛcogo danfara jɔnjɔnw kan. Ni foroko, solda ani farali taabolo bɛ se ka kɛ X70 ka wajibiw ye, sira fila bɛɛ bɛ se ka fanga caman-ovalisation pipe farikolo di, min ka kan ka kɛ trunkline baara ɲinini na.

X70 bɛ boli ka surunya pibiliki degun danma sanfɛla laban na, o la...kemikɛli dilannika kan ka fanga ni gɛlɛya di k’a sɔrɔ a ma weldacogo datugu. O la, carbone equivalent (CE) ani microalloying hakɛw bɛ ɲɛfɔ bandi fitininw kɔnɔ.

Tablo 3 – A kɛcogo jiralenw API 5L X70 weldalen na (PSL2, kunnafonisɛbɛn):

PSL2 wajibiyalenw cogoya caman na X70 welda pipe la, olu ye:

• Sanfɛla dantigɛliw CEIIW ni/walima PCM fɛ walasa ka funteni ɲɛfɛ ani tɛmɛsira ni ɲɔgɔn cɛ wajibiyalenw to u ka se ka kɛ cogo la min bɛ se ka kɛ
• Dan bɛ Nb+V+Ti bɛɛ lajɛlen na ani microalloy kelen-kelen bɛɛ kɔnɔ
• Contrôles optionnels sur Cu, Ni, Cr ani Mo walasa ka bɛn medium ni welding taabolo ma
• Gɛlɛya ni gɛlɛya sariya wɛrɛw kogo yɔrɔ girinmanw- walima funteni dɔgɔya siraw kan

O kuntigiya sugu bɛ kɛ nafama ye kɛrɛnkɛrɛnnenya la nisanfɛ-fanga X70bɛ fara ɲɔgɔn kan ni nɛnɛ waatiw ye, dilancogo kɔrɔlenw walima kɔgɔjida la jɛ-ka-baara.

X70 weldalen bɛ se ka dilan ni anwɛlɛki ye min janya ka bon. Mill seko bɛ dan dafalenw sigi, nka poroze sugandili danmadɔw bɛ don duguma yɔrɔw kɔnɔ.

Tablo 4 – Hakɛ hakɛ danmadɔ min bɛ kɛ X70 layini pipe weldalen na (a jiralen don):

Dilanbagaw ka...dugukolo kan gazi layini minnu ka bon-deguntuma caman na, u bɛ cɛmancɛ belebelebaw ni kogo janya danmadɔw fara ɲɔgɔn kan walasa ka seko ni dɔnko nafa bɛn ɲɔgɔn ma. X70 bɛ baara kɛ ni a yekɔgɔjida la fɛnw bɔli walima dugukolo jiginni sirawa ka c’a la, kogo belebelebaw bɛ a jira walasa ka kɛnɛma degun, kɔrɔta ani sigili doni kɛlɛ, ka fara dan gɛlɛnw kan ovali ni sigida jateminɛ dafabaliya kan.

Coating systems-i n’a fɔFBE, 3LPE, 3LPP ani bɛton girinya dacogo-w ɲɛfɔlen don o kɔfɛ walasa ka sɔgɔsɔgɔninjɛ farati ɲɛnabɔ, kan-dugukolo sabatili ani funteni baarakɛcogo sira kan.

X70 bɛ baara kɛ ni degunba ye ka tɛmɛ a hakɛ dɔgɔmanw kan, o la, sɛgɛsɛgɛli ni sɛgɛsɛgɛli bɛ kɛ ka ɲɛ. Siginidenw ka fɛɛrɛ dɔ bɛ se ka kɛ X70 pipe weldalen na, o bɛ se ka lajɛ nin cogo la:

Tablo 5 – Misali sɛgɛsɛgɛli ni sɛgɛsɛgɛli matiriyali API 5L X70 weldalen na :

A ka c’a la, jɔli jɛkuluw bɛ u janto kosɛbɛ o lasoudure procédure ka setigiya (WPS/PQR) .ni baara bɛ kɛ ni X70 ye. Fɛn minnu bɛ sinsin tuma caman na, olu ye:

• Funteni doncogo ni tɛmɛsira cɛ funteni danw
• Weld nɛgɛ fanga bɛnkan walima dɔɔni tɛmɛnen vs X70 basigilen nɛgɛ
• Gɛlɛya ni HAZ gɛlɛya sɛgɛsɛgɛli, kɛrɛnkɛrɛnnenya la masinw ka welda la
• Misaliw kɔlɔsili, welda barika bonya ani degun tolenw kɔlɔsili welda laminiw na

Taabolo minnu bɛ se kosɛbɛ ani baarakɛlaw minnu kalanna, olu b’a to X70 jogindaw ka sigi senkan ni sɛnɛfɛnw dilanni hakɛ ye, k’a sɔrɔ u bɛ jogoɲumanya wajibiyalen gɛlɛnw dafa hali bi.

Tuma caman na, pibiliki tigiw ka lisi surunAPI 5L X70 soudure layini pipeni kalasi kelen ka kan ka dilancogo degunba, sira jan ani kogo janya min bɛ se ka ɲɛnabɔ, olu fara ɲɔgɔn kan. Ko minnu bɛ kɛ tuma caman na, olu ye gazi jirisun kuraw ye minnu bɛ tɛmɛ yɔrɔjanw fɛ, fɛnw bɔli ni dugukolo jiginni siraw minnu sirilen bɛ kɔgɔjida la forow la, ani jirisunw wulilenw walima yɔrɔ minnu bɛ bila u nɔ na, ​​sira minnu bɛ yen, seko ni fanga hakɛ fila bɛɛ ka kan ka bonya yɔrɔ minnu na, k’a sɔrɔ pibiliki girinya ma tɛmɛ.

Octal Pipe bɛ nin porozɛ ninnu dɛmɛ ni X70 weldalen ye ka se API 5L PSL1 ni PSL2 ma ERW/HFW, LSAW ani SSAW cogoyaw la, minnu bɛ bɛn cɛmancɛ ma, kogo janya, finimugu sigicogo ani sɛgɛsɛgɛli hakɛ bɛ bɛn porozɛ ɲɛfɔli ma. BV, DNV, SGS walima jɛkulu sugandilen wɛrɛw ka seereya sabanan-seereya bɛ se ka labɛn walasa X70 fɛnw sɛbɛnw minnu fanga ka bon-, olu ka don saniya la pibiliki dilancogo bɛɛ lajɛlen na ani QA/QC hukumu kɔnɔ.

Ɲininkaliw

 

 

01.Danfara jumɛn bɛ API 5L X70 PSL1 ni PSL2 cɛ ka ɲɛsin welded line pipe ma?

A1:PSL2 ka gɛlɛn ka tɛmɛn chimie kɔlɔsili ni sɛgɛsɛgɛli/sɔn kan, wa a ka teli ka ɲɛfɔ pibiliki porozɛ kɔrɔlenw kama.

02.Ne bɛ se ka ERW ni LSAW ni SSAW sugandi cogo di API 5L X70 solded line pipe kama?

A2:Sugandili ka da OD/kogo janya wajibiyalen kan, poroze spec, ani weld/NDT wajibiyalenw-LSAW/SSAW bɛ sɔrɔ cɛmancɛbaw la, ERW bɛ sɔrɔ hakɛ fitininw na ka se cɛmancɛ ma.

03.Ne ka kan ka mun ɲini walasa ka API 5L X70 welded line pipe quality sɛgɛsɛgɛ sani a ka san?

A3:Aw ye MTC/traceability ɲini, PSL hakɛ wajibiyalen, carbone equivalent values, NDT jaabiw, hydrotest, ani poroze o poroze-kɛrɛnkɛrɛnnenya la, impact/fracture testing