Cov lus qhia luv luv
API 5L Hlau Kab Yeeb Nkab yog rau cov roj thiab roj kev lag luam pipelines, tsim rau ib puag ncig ua haujlwm sib txawv. Cov hlau kab cov yeeb nkab cov khoom siv feem ntau hauv cov hlau thiab ua raws li API spec 5L specifications. Ua ntawv thov rau roj av thiab ntuj muaj kev lag luam, cov kev xav tau ntawm cov kev pabcuam hnyav, thiab rau cov kev pabcuam ntawm cov kev pabcuam H2S. Cov kav dej no muaj nyob hauv ob qib khoom tseem ceeb rau cov khoom lag luam tshwj xeeb (PSL):PSL 1 (Txuj Ci)thiabPSL 2 (txhim kho kom tau).
Cov menyuam kawm qib
Cov Qib Qauv Hlau: Muaj nyob rau hauv ntau qib, suav nrogA25, A, B, X42, X42, X46, X52, X60, X 10, X70, X80, thiab siab dua.
Qib Tshaj Tawm:
- Cov chav kawm ntau: API 5L Gr.b PSL1, PSL2, SOUR KEV PAB CUAM
- Nruab nrab: X42, x46
- Nruab Nrab: X52
- Nruab nrab thiab siab: X56
- Qib siab: API 5L X60 PSL1, PSL2 LSAW tawm kab yeeb
- Siab: API 5L X65 PSL1, PSL2 LSAW / SSAWW Kab Yeeb Nkab
- Hwm Siab: API 5L X70
- Hwm Siab: API 5L X80
PSL2 cov yeeb nkab los nrog tus tsiaj ntawv cuav ntawm N, Q, M, piv txwv li API 5L X52N, API 5 x.
Qaub Service flas nrog daim ntawv sau nyiaj NS, QS, MS, piv txwv li API 5L X65qs.
Tshuaj Muaj Tshuaj
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm API 5L PSL1 Pipes txawv nyob ntawm cov qib kawm tab sis feem ntau suav nrog cov ntsiab lus hauv qab no:
| Tshuaj lom neeg tshuaj lom neeg rau PSL 1 yeeb nkab nrog t tsawg dua lossis sib npaug rau 25.0 hli (0.984 hauv.) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Qib hlau (Steel Npe) |
Pawg Feem Ntau Txheej Txheem, raws li cov khoom kub thiab khoom lag luam tshuaj xyuas A, G % |
|||||||
| C | Mn | P | S | V | Nb | Ti | ||
| Max B | Max B | lub min | tus zuag | tus zuag | tus zuag | tus zuag | tus zuag | |
| Seamless Yeeb Nkab | ||||||||
| L175 lossis A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| L175p lossis A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 lossis a | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 lossis b | 0.28 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| L290 lossis X42 | 0.28 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| L320 lossis X46 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L360 lossis X52 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L390 lossis X56 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L415 lossis X60 | 0.28 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| L450 lossis x 65 | 0.28 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| L485 lossis X70 | 0.28 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| Welded Yeeb Nkab | ||||||||
| L175 lossis A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| L175p lossis A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 lossis a | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 lossis b | 0.26 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| L290 lossis X42 | 0.26 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| L320 lossis X46 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L360 lossis X52 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L390 lossis X56 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L415 lossis X60 | 0.26 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| L450 lossis x 65 | 0.26 e | 1.45 e | - | 0.030 | 0.030 | f | f | f |
| L485 lossis X70 | 0.26 e | 1.65 e | - | 0.030 | 0.030 | f | f | f |
|
a. Cu tsawg dua lossis sib npaug rau 0.50%; Ni tsawg dua los yog sib npaug rau 0.50%; Cur tsawg dua lossis sib npaug rau 0.50% thiab mo tsawg dua lossis sib npaug rau 0.15%. b. Rau txhua tus kom txo ntawm 0.01% hauv qab qhov kev xav tau ntawm cov pa roj carbon ntau dua, nce siab ntawm 0.05% rau qib L245 lossis B, tab sis tsawg dua los yog X 560; Txog rau qhov siab tshaj plaws ntawm 1.75% rau qib> L360 lossis X52, tab sis lossis x70. c. Ntshe tsis tau pom zoo, nb + v tsawg dua lossis sib npaug rau 0.06%. d. NB + v + ti tsawg dua lossis sib npaug rau 0. 15%. e. Yog tsis pom zoo. f. Ntshe yog lwm tus pom zoo, nb + v + tsawg dua lossis sib npaug rau 0. 15%. g. Tsis txhob txhob txwm ntxiv ntawm B raug tso cai thiab cov seem ntawm qhov chaw lossis muaj sib npaug nrog 0.001%. |
||||||||
- Cov pa roj carbon (c) & manganese (mn):
PSL1: Cov kev txwv ntau dua rau C thiab MN. Qhov no nce lub zog tab sis txo weldability thiab nruj.
PSL2: Stricter txwv. Txhim kho Weldability thiab txo cov kev pheej hmoo ua rau ib puag ncig hnyav.
- Sulphurur (s) & phosphorus (p):
PSL1: Tso cai siab dua impurities. Tuaj yeem txhawb tus brittleness thiab txo kev ua siab loj.
PSL2: Tighter tswj. Txhim kho ductility thiab tsis kam mus tawg.
- Microalloying (NB, V, TI):
PSL2Feem ntau suav nrog microalloying ntsiab rau cov nplej ua kom zoo, txhim kho lub zog thiab tawv.
Cov Khoom Siv Neeg Kho Tshuab
| Yuav tsum muaj rau cov kev ntsuam xyuas Tensile rau PSL 1 yeeb nkab | ||||
|---|---|---|---|---|
| Yeeb Nkab Qib | Yeeb Nkab Lub Cev Ntawm Seamless Thiab Welded Yeeb Nkab | Weld Seam ntawm EW, LW, pom, thiab nyuj Tus kav dej |
||
|
Paib zog a RT0.5 |
Tensile lub zog a Rm |
Elongation (ntawm 50 hli lossis 2 hauv.) Tus fab % |
Lub zog tensile Rm |
|
| lub min | lub min | lub min | lub min | |
| L175 lossis A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L175p lossis A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 lossis a | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 lossis b | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| L290 lossis X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| L320 lossis X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| L360 lossis X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| L390 lossis X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| L415 lossis X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| L450 lossis x 65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| L485 lossis X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
|
Ib qib nrab, qhov sib txawv ntawm qhov tsawg kawg tensile lub zog thiab tau teev tseg yam tsawg kawg zog zog lub zog rau lub cev nqaij yeeb yuav muab rau hauv cov lus rau qib tom ntej. B rau qib nrab qib kawm, lub zog tsawg tshaj plaws rau kev txiav txim siab Weld yuav txiav txim siab tib tus nqi uas siv cov raj xyoob siv cov lus taw qhia a). C Qhov kev teev tseg tsawg kawg, AF, qhia nyob rau feem pua thiab sib npaug rau feem pua ze tshaj plaws, yuav tsum yog txiav txim siab siv kab sib npaug hauv qab no:
qhov twg C yog 1940 rau kev xam siv cov kev siv SI thiab 625,000 rau kev suav siv USC units AXC yog qhov muaj feem xyuam Tensile sib txuas lus daim Cross- seem ntawm thaj chaw, qhia nyob rau hauv thaj av square (square millimeters (square ntiv tes), raws li hauv qab no: |
||||
- Tensile Lub Zog & Tshaj Tawm Lub Zog:
PSL1: Cov ntau ntau ntau, muaj peev xwm txo qis tsawg kawg zog.
PSL2: Ntau dua Guaranteed cov seem, ua kom zoo sib xws rau high - kev siv ntxhov siab.
- Kev Cuam Tshuam:
PSL1: Tsis muaj Charpy Charpy vitaly v - tsis txhob kuaj ntawm tsawg kub. Kev pheej hmoo ntawm brittle bacture hauv huab cua txias.
PSL2: Yuav tsum muaj kev cuam tshuam kev sim, kom ua tau zoo hauv Subzero.
- Qhov seem tsis ntev:
PSL2: Tighter tswj ntawm phab ntsa tuab thiab ovality, txo kev pheej hmoo tsis txaus ntshai hauv siab.
Cov txheej txheem tsim khoom
API 5L Welded kav yog tsim kev siv ntau hom vuam, suav nrog:
- Hluav Taws Xob Ua Chiv Fab (ERW)- Cov kav dej tsim los ntawm Rolling Hlau Coils thiab Vuam lub Seam Siv Hluav Taws Xob Hluav Taws Xob.
- Submerged Arc Vuam (pom)- Longitudinal (LSAWW) lossis KAUV (hsaw / ssaw / ssaw) vuam nrog arc sammerged nyob rau hauv flux.
Hluav taws xob tiv thaiv vuam (ERW) cov txheej txheem
- Uncoiling & leveling: Steel Coils yog ib tus neeg thiab plob.
- Kev sib sau: Lub strip hla dhau ntawm cov rollers los ua ib qho cylindrical puab.
- Vuam: High {- zaus hluav taws xob tam sim no (HFW / ERW) cua sov cov npoo, thiab siab fuses lawv tsis muaj tub lim hlau.
- Weld annealing: Lub Weld cheeb tsam yog cua sov -}}} nrhiav kev ntxhov siab thiab txhim kho kev ntxhov siab.
- Sizing & ncaj: Cov yeeb nkab yog ntsuas kom haum rau qhov ntev kawg.
- Txiav: Cov kav dej yog txiav kom teev ntev (piv txwv li, 6m, 12m).
Submerged arc vuam (pom) txheej txheem
(a) longitudinal pom (lsaw / uoe yeeb nkab)
- Phaj Ntug Milling: Steel daim hlau yog trimmed rau meej vuam.
- U {- o sib sau: Daim hlau tau nias rau hauv aU - duab, cesO -} zoo li tusnyob rau hauv ib hydraulic xovxwm.
- Sab Hauv & Sab Nraud Vuam:
Submerged Arc Vuam (pom) yog thov sab hauv thiab sab nraud siv tsis siv neeg vuam tshuab.
Flux tiv thaiv lub weld los ntawm oxidation.
- Kev nthuav dav (O → e): Cov yeeb nkab yog nthuav dav hydraulic kom txhim kho puag ncig thiab cov khoom siv neeg kho mob.
(b) Muab kauv kaw (ssaw / hsaw yeeb nkab)
- Muab Kauv Txoj Kev: Tus kab mob hlau yog Helically txhab ntawm kaum.
- Nruam Vuam: Submerged arc vuam koom nrog cov kauv seam.
- Qhov Zoo: Haum rau txoj kab uas ua diameters loj (txog li 120 ntiv taw).
Qhov sib txawv tseem ceeb ntawm pom (LSAWW, SSAW) thiab ERW YEEB NKAUJ
Raws li saum toj no cov txheej txheem peb tuaj yeem pom pom (lsaw, swsaw) thiab li erw thiab lwm yam kav hlau sib txawv hauv qab no:
1. Cov khoom lag luam zoo ntawm ERW tau zoo dua thaum piv rau pom (LSAWW (LSAW Nyob rau hauv feem ntau ntawm cov ntaub pom kav dej, nws yog feem ntau yog hais txog ntawm Weld txhawb rau hauv thiab sab nraud.
2. Cov tsis xws luag pom hauv ERW kav yog tsawg dua li pom kav dej. Raws li muaj cov kuab kev tso nyiaj hauv pom cov kav dej, nws ua rau cov tsis xws luag los ntawm qhov tsis xws luag hauv lub ntim. Cov tsis xws luag pom nyob rau hauv ERW kav yog tsuas yog tawm ntawm cov hlau - kab thiab nws tuaj yeem pom tau yooj yim. Cov tsis xws luag tuaj yeem pom tau yooj yim thiab cov ultrasonic xav txog saum npoo ua kom yooj yim los ntes.
3. Qhov seem uas muaj kev ntxhov siab nyob rau hauv ERW yog qis dua pom kav dej. Raws li cov ntawv pov tseg kev nyab xeeb tshwm sim ntau dua hauv ERW ua raws li los ntawm lub tiaj tus oval, nws ua tau nyob rau hauv ellipipical ntsug hloov thiab caj dab, yog li ua kev ntxhov siab me dua. Kev hloov pauv ntawm ERW me me thaum piv raws cov axial thiab transversts ntawm pom cov khoom siv tau siv tib yam thiab nws kuj yog qhov yooj yim pom.
4. Txawm hais tias tag nrho cov kev ua tau zoo ntawm ob lub ERW thiab pom cov kav dej yog tib yam, thaum nws yuav ua rau pom, uas yuav ua rau pom kev tawg lossis xeb, ua rau erw ntau ruaj.
Qhov Zoo thiab Cov Ntawv Thov
Qhov Zoo
- Lub zog siab - rau - qhov hnyav.
- Zoo heev Weldability thiab formability.
- Corrosion {{0-} Cov kev xaiv resistant (piv txwv li, coated lossis cov kav dej).
- Txhim khu kev qha ua tau zoo hauv huab cua sov thiab kev ntsuas.
Cov Ntawv Thov
Rau cov roj av thiab ntuj huab cua kev lag luam, cov yeeb nkab steel rau cov tshuab xa hluav taws xob.
Tag
API 5L Welded steel yeeb nkab yog ib qho tseem ceeb nyob rau hauv Zog infrastructure, muab cov nyiaj ruaj khov, thiab kev yoog raws li ntau yam kev lag luam. Nws cov kev tsim qauv kev tsim qauv thiab kev sim nruj heev ua kom muaj kev cia siab rau qhov siab ntawm- Kev siv kev cuam tshuam kev nyuaj siab pipeline.
Cim npe nrov: API 5L Welded Steel Yeeb Nkab, Tuam Tshoj, Tuam Tshoj Chaw Tsim Tshuaj, Chaw Tsim Tshuaj, Hoobkas, Nqe
