Tianjin Brisk Metalwork Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm api 5l roj kis lsaw steel yeeb nkab hauv Suav teb. Peb muaj lub ntiaj teb- cov cuab yeej tsim khoom thiab muaj peev xwm tsim tau zoo. Thov koj xav tias dawb mus yuav bulk check api 5l roj kis tau tus mob lsaw steel yeeb nkab los ntawm peb lub hoobkas.
Tianjin Brisk Steel yog ib qho ntawm cov tuam ntxhab ntawm API 5L Roj Kis LSAW Steel Yeeb Nkab hauv Suav teb. Peb cov khoom raug xa tawm mus rau Middle East, Southeast Asia, Europe, New Zealand, thiab lwm thaj chaw.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov hu rau peb thiab xa koj daim ntawv yuav khoom.
Yog vim li cas LSAW rau Roj Kis Kab
LSAW (Longitudinal Submerged Arc Welded) yeeb nkab yog tsim los ntawm ib lub phaj steel, ntug-milled, tsim rau hauv lub tog raj kheej (feem ntau yog los ntawm JCOE lossis UOE xovxwm sib sau), thiab welded raws ib txoj kab ncaj nraim uas siv submerged arc vuam ntawm ob sab hauv thiab sab nraud ntawm cov yeeb nkab. Rau loj - txoj kab uas hla roj kis tau tus mob trunklines, cov txheej txheem no feem ntau nyiam tshaj kauv (SSAW) seam yeeb vim:
- Qhov ncaj seam geometry simplifies girth welding alignment ntawm khi -hauv cov ntsiab lus
- Phaj- cov khoom siv tso cai rau kev tswj xyuas nruj dua ntawm cov hlau huv huv thiab cov ntsiab lus suav nrog, cuam tshuam rau qaub lossis siab dua -H2S cov kwj deg
- Phab ntsa tuab tuaj yeem tswj tau ntau dua nyob rau hauv cov kab loj loj, uas tseem ceeb rau cov kav dej tsim los ze rau qhov siab tshaj plaws kev ua haujlwm siab (MAOP)
Seamless yeeb nkab tseem yog lwm txoj hauv kev rau cov kab me me, tab sis saum toj no roughly NPS 24, LSAW dhau los ua qhov kev xaiv zoo vim tias seamless ntau lawm ntawm txoj kab uas hla thiab phab ntsa thickness yog tsis muaj los yog nqi - txwv tsis pub los ntawm feem ntau mills.
Qib Kev Xaiv rau Kev Hloov Roj
API 5Lnpog qib qib ntaiv los ntawm Qib B mus txog X80, tab sis cov phiaj xwm kis tau tus mob ua ke nyob ib ncig ntawm qhov nqaim dua:
| Qib | SMYS (min) | Kev siv roj sib txuas |
|---|---|---|
| X42–X52 | 42,000–52,000 psi | Tsawg-kev sib sau ua ke thiab cov kab hauv lub cev, cov kav dej qub hloov ntu |
| X60–X65 | 60,000–65,000 psi | Standard niaj hnub crude trunkline specification |
| X70 | 70,000 psi | Siab -siab, loj- txoj kab uas hla ntev- cov kab crude uas txo cov phab ntsa thickness rau ib tug muab MAOP txo cov khoom thiab vuam nqi |
Piv nrog rau kev sib kis ntawm cov roj, cov kev qhia tshwj xeeb ntawm cov roj kis tau zoo me ntsis yuav thawb mus rau hauv X70 / X80 thaj chaw, vim tias cov kav dej roj av feem ntau tsis tshua muaj siab dua - txwv tsis pub muaj kev txhawj xeeb txog compressibility ntau dua li cov roj kab yog - tab sis qhov no txawv ntawm qhov project economics thiab struts profile, thiab yuav tsum tau lees paub tiv thaiv koj cov raj xa dej tshwj xeeb tsim los ntawm ib leeg.
PSL1 vs PSL2 rau Kev Pabcuam Roj
API 5L txhais ob yam khoom tshwj xeeb, thiab qhov kev xaiv tseem ceeb rau cov phiaj xwm kis tau tus mob ntau dua li cov neeg yuav khoom qee zaum xav tias:
- PSL1- cov kev cai hauv qab no, tsis tas yuav tsum muaj kev sim tshuaj Charpy, txwv tsis pub siv tshuaj lom neeg tsawg
- PSL2- yuav tsum tau kuaj qhov cuam tshuam, nruj dua cov pa roj carbon sib npaug sib npaug, yuav tsum tau ntsuas hydrostatic ntsuas siab thiab cov ntaub ntawv ntev, ntxiv NDT cov cai
Feem ntau niaj hnub cov roj kis tau tus mob trunkline specifications hu rau PSL2, tshwj xeeb tshaj yog nyob rau hauv qhov chaw uas txoj kev hla tsawg - cheeb tsam kub (tshwj xeeb toughness teeb meem rau brittle fracture resistance) los yog qhov twg tus neeg teb xov tooj tus kheej pipeline cov qauv kev ncaj ncees tshaj API 5L hauv paus. Paub meej tias theem twg koj qhov kev qhia tshwj xeeb yuav tsum tau ua ua ntej thov zeb quotes - PSL1 cov khoom yuav tsis txaus siab rau PSL2 specification txawm nyob rau tib qib thiab txoj kab uas hla.
Seam Weld Quality: Dab tsi los kuaj xyuas
Vim hais tias cov seam ntev yog qhov siab tshaj plaws - qhov tshwm sim qhov chaw nyob ntawm LSAW yeeb nkab, cov neeg siv roj xa khoom yuav tsum paub meej txog cov kev tswj xyuas tshwj xeeb tshaj li qhov API 5L qhov ntsuas qhov tsawg kawg nkaus:
- 100% seam ultrasonic kuaj (UT)hla tag nrho cov yeeb nkab ntev,tsis ua piv txwv- raws li kev xeem
- 100% radiographic kuaj (RT)ntawm seam weld, tshwj xeeb tshaj yog nyob rau hauv girth weld khi- nyob rau hauv ib cheeb tsam
- Ob chav submerged arc vuam (DSAW)- ob sab hauv thiab sab nraud weld hla, txheeb xyuas hauv cov ntaub ntawv txheej txheem
- Hydrostatic xeem siab thiab tuav lub sijhawm- lees paub qhov kev sim siab thiab lub sijhawm ua tau raws li lossis tshaj koj qhov kev tsim cov raj xa dej, tsis yog API 5L qhov tsawg kawg nkaus
- Tshaj tawm -weld heat treatment los yog seam normalizing, qhov twg tau teev tseg - cuam tshuam rau qib siab dua -qib, tuab dua - cov yeeb nkab phab ntsa qhov twg qhov seem seem ntawm cov seam yog qhov kev txhawj xeeb ntau dua
FAQ
Q: LSAW yeeb nkab puas siv tau rau ob qho tib si roj av thiab cov khoom ua kom zoo hauv tib lub raj xa dej?
A: Yog, cov yeeb nkab nws tus kheej tsis yog cov khoom lag luam - tshwj xeeb - cov qauv tsim muaj feem xyuam yog siab, corrosivity, thiab ib qho kev txiav txim siab ntawm kev sib txuas / kev sib txuas rau ntau- cov khoom kab, uas tau hais los ntawm txheej txheej, tiv thaiv cathodic, thiab cov txheej txheem ua haujlwm ntau dua li cov yeeb nkab tsim.
Q: Vim li cas cov roj xa hluav taws xob LSAW yeeb nkab qee zaum qhia cov pa roj carbon tsawg dua li cov roj xa hluav taws xob ntawm tib qib?
A: Cov pa roj carbon tsawg feem ntau txhim kho weldability thiab txo hydrogen cracking kev pheej hmoo ntawm girth welds - qee cov roj pipeline specifications nruj qhov no dhau API 5L PSL2 lub hauv paus tshwj xeeb los txo qhov vuam qhov tsis xws luag ntawm qhov ntev -haul kev tsim kho tej yaam num nrog siab niaj hnub weld suav, txawm tias yuav tsum tau sib txawv ntawm qhov project.
Q: Puas yog LSAW yeeb nkab ua rau seam tsis ua haujlwm ntau dua li cov yeeb nkab seamless hla lub raj xa dej ua haujlwm?
A: Thaum tsim thiab sim rau PSL2 cov kev cai nrog tag nrho cov seam NDT kev pab them nqi, LSAW yeeb nkab muaj cov ntaub ntawv dav dav hauv kev pabcuam roj; seam- cuam tshuam txog kev ua tsis tiav hauv kev tsim khoom zoo thiab tshuaj xyuas LSAW yeeb nkab yog qhov tsawg thiab feem ntau txuas rau qhov tsis txaus NDT cov kev pab cuam lossis kev tsim khoom tswj tau zoo dua li kev tsim seam nws tus kheej.
Q: Dab tsi txoj kab uas hla yog feem ntau muaj nyob rau hauv API 5L LSAW yeeb nkab rau roj kis?
A: Feem ntau cov mills tsim API 5L LSAW yeeb nkab los ntawm roughly NPS 16 mus txog NPS 60 lossis loj dua, txawm tias qhov siab tshaj plaws txoj kab uas hla thiab phab ntsa thickness sib xyaw ua ke sib txawv heev los ntawm zeb xovxwm muaj peev xwm - lees paub qhov muaj peev xwm tshwj xeeb ncaj qha nrog koj tus neeg muag khoom rau koj qhov project txoj kab uas hla thiab thickness.
Cim npe nrov: api 5l roj kis tau tus mob lsaw steel yeeb nkab, Tuam Tshoj api 5l roj kis tau tus mob lsaw steel yeeb nkab manufacturers, lwm tus neeg, Hoobkas
