High -} Cov Ntsiab Lus
API 5L PSL2 Seamlesshais txog lub siab -}}} Cov yeeb nkab steel, seamless steel nkig tsim rau cov hlua khi rau cov neeg Asmeskas cov roj av roj av (API) cov lus qhia tshwj xeeb 5L,Khoom Tshwj Xeeb Theem 2.
API 5L:Tus qauv tswj kev tsim cov khoom "kab yeeb" siv rau kev thauj cov roj, roj, thiab dej hauv cov kav dej.
Seamless (s):Cov yeeb nkab tsim los ntawm ib lub thawv ntim khoom uas tau chob thiab dov mus rau hauv lub pas dej hollow tsis muaj welds raws nws qhov ntev. Qhov no muaj lub zog zoo dua thiab kev sib dhos.
PSL2:Qhov no yog qib siab dua, yuav tsum tau ntau dua cov tshuaj sib xyaw ua kom nruj, cov cuab yeej kuaj xyuas cov khoom siv, thiab tsis yog {{} {{} {} {{{{} {{} {{} {{} {{{{{} {{} - kev dag ntxias tshaj PSL1.
PSL2 kav yog yuav tsum tau ua rau qhov tseem ceeb, siab - pa taws zoo li ntug dej, muaj h₂s), thiab arctic ib puag ncig.
Qhov tseem ceeb yuav tsum muaj api 5l PSL2 (seamless)
Cov ntawv sau npe PSL2 yog dab tsi uas teev cov kav dej sib nrug ntawm cov ntawv PSL1 kav.
1. Tshuaj lom neeg sib xyaw
PSL2 muaj ntau txoj kev tswj hwm kev tswj hwm cov tshuaj lom neeg los xyuas kom meej weldability, kev nruj, thiab corrosion tsis kam.
Qhov ntau tshaj plaws Carbon sib npaug (CE):Txwv tsis pub siv lub ce (xam siv cov qauv zoo li IIW lossis PCM) kom tiv thaiv kev tawg thaum vuam. Qhov siab tshaj plaws uas tau tso cai CE poob qis raws li lub phab ntsa tuab nce.
Kev tswj hwm lub sijhawm:Stricter txwv ntawm cov ntsiab lus zoo li phosphorus (p) thiab Sulfur (s) txhawm rau txhim kho kev ua haujlwm nruj thiab ua kom cov ntshav txhaws hluav taws xob (HIC).
Qaub kev pab qib:Rau cov qib nyiam L415ms (X60Ms), L450ms (x65ms), thiab lwm yam, tooj, tooj liab, thiab niobium los txhim kho kev ua tau zoo hauv cov chaw ntub dej.
2. Cov Khoom Siv Neeg Kho Tshuab
PSL2 kav dej yuav tsum ua kom tau raws li cov khoom siv neeg kho cov cuab yeej.
Cov yuav tsum tau ua: Charpy V - tsis tau (CVN) cuam tshuam kev xeem yog yuav tsum tau ua.Cov yeeb nkab yuav tsum nqus tau qhov tsawg kawg ntawm lub zog ntawm lub zog uas tau hais tseg (piv txwv li, 0℃lossis qis dua, nyob ntawm qhov yuav tsum tau ua) kom nws tsis poob rau hauv lub ntsej muag.
Lub zog thiab Ductility:Yuav tsum tau ua raws li cov txiaj ntsig tsawg kawg rau qhov muaj zog tensile thiab kom muaj zog, raws li qhov tsawg kawg nkaus elongation.
3. Kuaj thiab tshuaj xyuas
Qib ntawm qhov tsis - Kev sim siab (ndt) yog qhov siab dua rau PSL2.
100% tsis -} kev ntsuam xyuas kev ntsuam xyuas (NDE):Txhua qhov ntev ntawm seamless psl2 yeeb yuav tsum yog 100% tshuaj xyuas rau kev tsis txaus ntseeg. Qhov no feem ntau suav nrog:
Eddy kev sim tam sim no (li)lossisKev Kuaj Ultrasonic (ut)rau lub cev tag nrho.
Hydrostatic kuaj:Txhua cov yeeb nkab yuav tsum tau tiv thaiv qhov kev ntsuas hydrostatic tsis muaj kev txwv. Qhov kev ntsuas siab yog suav raws cov yeeb nkab lub taub, phab ntsa tuab, thiab tawm lub zog.
Ntxiv cov kev ntsuam xyuas rau sour kev pab:Yog hais tias teev, kev sim zoo liHIC TEST(Hydrogen inducts cracking) thiabSSC TEST(Sulfide kev ntxhov siab tawg) ibNACE MR0175 / ISO 15156yuav tsum tau.
Cov qib kawm rau API 5L PSL2 Seamless Yeeb Nkab
Cov qib qhia qhov tsawg kawg nkaus tau lees lub zog (hauv MPA lossis KSI). Cov qib kawm muaj xws li:
| Qib kev tsim | Yield zog (min) |
|---|---|
| L245N / L245Q | 245 MPa (35,500 psi) |
| L290N / L290Q | 290 mpa (42,100 psi) |
| L360N / L360Q | 360 MPa (52,200 PSI) |
| L415N / L415Q | 415 MPa (60,200 PSI) |
| L450N / L450Q | 450 MPa (65,300 PSI) |
| L485N / L485Q | 485 MPa (70,300 PSI) |
| L555N / L555Q | 555 MPa (80,500 psi) |
Nco tseg:Cov "N" lossis "SCOSIX feem ntau siv los txhais lus cov yam ntxwv hloov kho lossis quenched thiab tempered, feem. Cov "MS" Suffix (piv txwv li, L415ms) tshwj xeeb txhais tau tias yog ib qib haum rauQaub Kev Pab.
Cov txheej txheem tsim khoom (ua kom yooj yim rau seamless)
Cillet cua sov:Ib lub zog cylindrical billet yog rhuab mus rau qhov kub.
Tho:Lub based billet yog chob los ntawm mandrel los tsim lub hollow "plhaub."
Elongation / Dov:Lub khauj khaum yog dov thiab ncab dua ib lub mandrel thiab nruab nrab ntawm cov yob kom ua tiav cov kab uas xav tau thiab phab ntsa tuab (piv txwv li ntawm ib lub zeb plug zeb lossis mandrel).
Sizing & Wraftening:Cov yeeb nkab yog qhov loj me me kom haum qhov ntev thiab ncaj.
Kev Kho Cua Sov:PSL2 seamless kav yog yuav luag txhua zaus cua sov kho (li qub lossis quenched & tempered) kom ua tiav cov neeg kho tshuab hluav taws xob thiab microstructure.
Kev Soj Ntsuam & Tshuaj Xyuas:Cov yeeb nkab undergoes tag nrho suite ntawm PSL2 kev sim (hydrostatic, ndt, kev kuaj xyuas sab nrauv).
Xaus xov:Xaus yog bevelled thiab npaj rau vuam.
Kev soj ntsuam zaum kawg & kos cim:Txhua tus yeeb nkab yog stamped lossis stenciled nrog nws cov cim txawv, suav nrog qib kawm, PSL, cov chaw tsim cua.
Cov Kev Siv Raug Raug
PSL2 Seamless kav yog siv nyob rau hauv cov ntawv thov uas tsis xav tau tshaj plaws tsis yog ib qho kev xaiv:
High - siab hloov Pipelines:Main onshore thiab offshore roj thiab roj pob tw.
Qaub kev pabcuam pipelines:Thauj hydrocarbons muaj hydrogen sulfide (h₂s).
Offshore tej yaam num:Kev sam thiaj, risers, thiab cov pa hluav taws xob vim qhov siab siab sab nraud thiab kev thauj khoom zoo.
Arctic thiab qis - kub kev pab:Qhov twg siab tawv ntawm qhov kub tsawg yog qhov tseem ceeb.
Chaw tsim khoom thiab cov txheej txheem cog tsob nroj:Rau qhov tseem ceeb siab - qhov kev pabcuam siab.
Qhov tseem ceeb: PSL1 thiab PSL2 (Seamless)
| Yam zoo | PSL1 | PSL2 |
|---|---|---|
| Tshuaj Tswjhwm Siv Tshuaj | Tsawg nruj, tsis muaj qhov siab tshaj plaws Calce yuav tsum tau ua. | Tswj nruj nrog cov pa roj carbon ntau. |
| Kev Ntsuas Cov Khoom Sib Tw | Charpy Kev Kuaj Kev Ntsuas yogtsis yog yuav tsum tau ua. | Tseem ceebCharpy V - Cov lus cuam tshuam rau cov neeg yuav ntsuas. |
| Ndt / tshuaj xyuas | Piv txwv li -.} Raws lossis tsis tshua muaj txhij txhua. | 100%Tsis - kev ntsuam xyuas ntawm cov yeeb nkab lub cev. |
| Hydrostatic Kev Ntsuam Xyuas | Yuav tsum muaj, tab sis yuav muaj kev zam. | Yuav tsum muaj rau txhua qhov ntevNtawm yeeb nkab. |
| Tracelourility | Los ntawm tshav kub. | Los ntawm txhua tus neeg muaj feem ntev. |
| Daim ntawv thov | Tsawg dua tseem ceeb, qis {- qhov siab, tsis - | Qhov tseem ceeb, siab {- qhov siab, sour kev pabcuam, sab nrauv. |
Hauv cov ntsiab lus xaus,API 5L PSL2 Seamless Steel Yeeb Nkabsawv cev ntawm tus nqi khi ntawm kab yeeb, tsim nrog txhim kho kev nyab xeeb kom ua rau muaj kev nyab xeeb tshaj plaws, kev ncaj ncees, thiab kev ua tau zoo hauv lub ntiaj teb cov phiaj xwm pipeline feem ntau.
