Cov Lus Teb Sai: Cov yeeb nkab JCOE LSAW zoo tagnrho rau kev siv phab ntsa hnyav vim nws muaj kev tsim khoom yooj ywm, qhov loj me raug, thiab qhov zoo ntawm kev vuam. Tsis zoo li kev tsim khoom UOE ib txwm muaj, JCOE tuaj yeem ua tau zoo rau kev tswj hwm qhov loj me, qhov tuab ntawm phab ntsa, thiab qhov ntau thiab tsawg raws li qhov project, ua rau nws yog qhov kev daws teeb meem zoo rau cov qauv tsim tawm hauv hiav txwv, cov kav dej hluav taws xob, thiab cov haujlwm tsim kho hnyav.
Cov Ntsiab Lus
- 1. JCOE LSAW Yeeb Nkab Yog Dab Tsi?
- 2. JCOE vs UOE Yeeb Nkab: Kev Sib Piv Txheej Txheem
- 3. Cov Kav Dej JCOE LSAW Siv Qhov Twg?
- 4. Cov Yeeb Nkab LSAW Ua Li Cas? JCOE Tsim Cov Kauj Ruam Yog Kauj Ruam
- 5. Piv txwv txog tus nqi: Ib qho kev txiav txim siab JCOE LSAW 75-Ton uas raug cai
- 6. Kev Tshuaj Xyuas Yeeb Nkab LSAW: Cov Kev Cai Ntsuas UT vs RT
- 7. Kev Ua Nroj Tsuag: Yuav Ua Li Cas Txo Cov Khoom Thauj Khoom Hauv Dej Hiav Txwv ntawm LSAW Shippings
- 8. Daim Ntawv Teev Npe RFQ rau Cov Yeeb Nkab LSAW
- 9. Cov Lus Nug Feem Ntau
- 10. Xaus Lus
1. JCOE LSAW Yeeb Nkab Yog Dab Tsi?
JCOE LSAW yeeb nkabyog ib lub yeeb nkab steel longitudinal submerged arc welded uas tsim los ntawm kev tsim cov hlau tiaj tiaj mus rau hauv ib lub cylindrical duab los ntawm JCO sequence, ua raws li kev nthuav dav tag nrho. Tsis zoo li cov yeeb nkab spiral welded, LSAW yeeb nkab muaj ib qho ncaj longitudinal weld seam, ua rau nws haum rau cov ntawv thov uas xav tau qhov tseeb siab thiab kev ntseeg siab ntawm cov qauv.
Hauv cov qauv tsim tawm hauv hiav txwv, cov kav dej fais fab, thiab cov haujlwm tsim kho hnyav, cov kav dej txheem feem ntau tsis txaus. Cov kws ua haujlwm yuav xav tau cov kab uas hla sab nraud, cov phab ntsa tuab, cov qib hlau tshwj xeeb, lossis cov kev cai tshuaj xyuas tshwj xeeb. Rau cov lus txib raws li qhov project no, kev tsim khoom loj UOE tuaj yeem tsis yooj ywm vim nws cov qauv tsim khoom ntau.
Kev tsim khoom JCOE muab kev ywj pheej ntau dua rau cov qhov loj me thiab cov khoom me me thaum tswj hwm cov kev xav tau zoo rau cov ntawv thov tseem ceeb. Yuantai Derun siv cov thev naus laus zis JCOE rau cov yeeb nkab loj thiab cov yeeb nkab phab ntsa hnyav, txhawb nqa cov ntawv thov hauv kev tsim kho vaj tse, lub zog, thiab kev tsim kho vaj tse.
2. JCOE vs UOE Yeeb Nkab: Kev Sib Piv Txheej Txheem
Ua ntej yuav piav qhia meej, nws yuav pab kom pom tias plaub txoj kev ua haujlwm tseem ceeb sib txawv li cas ntawm ob yam uas cov neeg yuav khoom xav txog: geometry uas lawv tuaj yeem ua tau, thiab lawv yuav txais qhov kev txiav txim me me npaum li cas.
| Rooj 1 — Kev sib piv ntawm cov txheej txheem tsim khoom thiab kev hloov pauv lag luam | ||||
| Kev Txawj Ntse & Kev Lag Luam | Cov Txheej Txheem JCOE (LSAW) | Cov Txheej Txheem UOE (LSAW) | Cov Txheej Txheem ERW | SSAW (Kauv) |
| Txoj Kev Tsim Qauv | Kev khoov kauj ruam zuj zus (JCOE) | Ib qho kev ua U-stamping + O-nias | Kev tsim cov khoom txias tas mus li | Kev sib txuas ntawm cov kauj vuam helical tas mus li |
| Kev Teeb tsa ntawm Seam | Ib txoj kab ncaj nraim longitudinal | Ib txoj kab ncaj nraim longitudinal | Ib txoj kab ncaj nraim longitudinal | Kev sib txuas ntawm cov xov hlau txuas ntxiv mus |
| Txoj kab uas hla sab nraud (OD) | 406 hli - 1422 hli (16″ - 56″) | 508 hli - 1422 hli (20″ - 56″) | 21.3 hli - 610 hli (1/2″ - 24″) | 219 hli - 3048 hli (8″ - 120″) |
| Max Phab Ntsa Thickness (WT) | Txog li 50 hli+ (hnyav / hnyav heev) | Zoo rau cov kav dej loj uas muaj phab ntsa hnyav (muaj peev xwm txawv ntawm lub zeb) | Feem ntau < 20 hli | Feem ntau < 25 hli |
| Kev Siv Tau Ntau Yam ntawm Cov Cuab Yeej | Universal nias tuag (flexible) | Cov khoom siv tuag tshwj xeeb | Cov khoom siv dov loj ruaj khov | Cov taub hau tsim lub kaum sab xis uas kho tau |
| MOQ Kev Lag Luam | Ua raws li qhov project; feem ntau haum rau cov khoom me me nyob ntawm seb lub zeb ua haujlwm li cas | 1,000 – 2,000+ Tons | 100+ Tons (nyob ntawm lub kauj) | 100+ Tons |
| Qib Kev Nyuaj Siab seem | Qis heev tom qab nthuav dav tag nrho | Qis (nthuav dav los ntawm tshuab) | Nyob ntawm txoj kev tsim thiab kev kho cua sov | Siab (kev ntxhov siab nyuaj) |
Kev xav ntawm tus engineer:ERW zoo heev rau cov kab nyias nyias, thiabSSAW siv dav rau cov ntawv thov loj uas qhov kev vuam sib txuas thiab cov kev xav tau ntawm qhov project yog qhov txais tau. Tab sisJCOE LSAW yog cov txheej txheem uas ua rau cov yeeb nkab OD, phab ntsa hnyav (hais OD 720 mm × WT 38 mm) hauv cov khoom me me raws li qhov project.yam tsis ua rau muaj kev nplua rau kev hloov pauv cuab yeej tsib daim duab. (Saib peb qhov kev dhia tob dua hauvLSAW vs. SSAW vs. Seamless.)
3. Cov Kav Dej JCOE LSAW Siv Qhov Twg?
Vim tias JCOE tswj cov hlau uas tsis yog tus qauv thiab cov phab ntsa hnyav uas muaj ntau qhov loj me, nws tshwm sim txhua qhov chaw uas cov hlau qauv xav tau qhov sib txuas ntev uas raug thiab tau ntawv pov thawj. Feem ntau siv rau qhov kawg:
- Cov cua ntsawj hiav txwv thiab cov khoom hloov pauv.Monopiles thawb 8–12 m hauv txoj kab uas hla thiab xav tau cov phab ntsa tuab thiab puag ncig sib xws; JCOE cia ib lub vaj ntaus cov qauv geometry tseeb yam tsis muaj kev cog lus UOE-scale.
- Cov qauv tsho thiab cov platforms offshore.Cov seem ceg, cov hlau txhawb nqa, thiab cov lus qhia ntawm tus neeg coj kav dej xav tau cov yeeb nkab phab ntsa hnyav uas muaj kev kam rau siab - raws nraim li JCOE qhov ntau thiab tsawg.
- Cov kav xa roj thiab roj av.Rau cov seem uas xav tau WT tshwj xeeb lossis qib tshwj xeeb ze ntawm qhov khi, JCOE muab cov khoom uas lub tshuab kauv tsis tuaj yeem ua tau.
- Cov ncej qauv hnyav.Cov ru tsev chaw ua si, cov chaw ua yeeb yam, thiab cov thav duab lag luam siv cov ntu loj thiab cov voj voog uas qhov kev tswj qhov ntev tseem ceeb dua qhov ntim.
Hauv txhua kis, tus neeg yuav khoom tsis yog yuav cov ton pheej yig tshaj plaws - lawv xav tau cov yeeb nkab uas haum rau daim duab kos thiab dhau qhov kev tshuaj xyuas thawj zaug. Qhov ntawd yog qhov sib txawv uas JCOE ua tiav.
4. Cov Yeeb Nkab LSAW Ua Li Cas? JCOE Tsim Cov Kauj Ruam Yog Kauj Ruam
Lub npeJCOEpiav qhia txog cov txheej txheem siv los ua kom lub phaj hlau hnyav zoo li no:
Phaj Hlau → J-Bending → C-Bending → O-Bending → ID/OD SAW Vuam → Kauj Ruam E (Nthuav Dav)
Cov pwm nias thoob ntiaj teb khoov lub phaj ib kauj ruam zuj zus (J → C → O) — tsis tas yuav siv cov cuab yeej tshwj xeeb rau txhua qhov loj me.
- Ntug ua ntej khoov:Kev siv tshuab crimping ua rau cov npoo ntawm lub phaj mus rau lub vojvoog uas xav tau, tshem tawm cov chaw tiaj tiaj uas yuav nyob ze ntawm cov xov.
- J-khoov:Ib lub tshuab hydraulic universal maj mam khoov ib ntug mus rau hauv ib daim duab "J".
- C-khoov:Ntug sab nraud raug nias ib kauj ruam zuj zus mus rau hauv qhov qhib "C".
- O-khoov:Lub tshuab nias kaw lub phaj rau hauv qhov qhib "O", sib dhos cov npoo rau kev vuam submerged-arc.
- Kev Vuam Arc Uas Muab Tso Rau Hauv Qab Av (SAW):Cov xov hlau sab hauv (ID) thiab sab nraud (OD) sib txuas ua ke. Kev kub siab ua rau muaj kev sib xyaw ua ke tob thiab hlawv cov kuab paug uas muaj peev xwm ua tau.
Cov Kauj Ruam Nthuav Dav (E): Kev Nthuav Dav Txias Tag Nrho
Tus "E" kawg yog kev nthuav dav. Lub taub hau hydraulic expander ntau ntu taug kev tag nrho sab hauv ntawm lub yeeb nkab, nthuav nws radially xaus rau qhov kawg. Qhov no yog kauj ruam uas cais JCOE ntawm cov khw muag phaj yooj yim.
[ Cov yeeb nkab vuam tsis nthuav dav ] → [ Lub taub hau hydraulic expander sab hauv ] → [Txhim kho qhov sib xws thiab qhov puag ncig]
Kev nthuav dav tag nrho ntawm lub tshuab ua rau txo qhov kev ntxhov siab seem thiab xauv qhov puag ncig thiab ncaj nraim thoob plaws hauv cov yeeb nkab.
- Txo cov kev ntxhov siab seem:Kev tsim thiab kev vuam ntau zaus ua rau muaj kev ntxhov siab ntawm lub cev thiab cua sov. Kev nthuav dav txias ua rau cov hlau dhau qhov elastic me ntsis, txo cov kev ntxhov siab seem thiab txhim kho kev ruaj khov ntawm qhov ntev thiab kev ua haujlwm vuam zoo ib yam.
- Kev lees paub qhov kev haum rau thaj chaw:Qhov kev nthuav dav ua rau cov yeeb nkab ua kom nws puag ncig thiab ncaj. Cov kav dej huv txhais tau tias yuav tsum tau kho kom haum rau ntawm qhov chaw es tsis txhob siv sijhawm vuam thiab sib dhos.
5. Piv txwv txog tus nqi: Ib qho kev txiav txim siab JCOE LSAW 75-Ton uas raug cai
Lus Cim: Cov duab hauv qab no yog cov piv txwv xwb, raws li cov khoom siv ua khoom siv uas hnyav 75-tuj. Tus nqi tiag tiag nyob ntawm qib hlau, cov kev cai ntawm daim ntawv pov thawj, thiab cov lus cog tseg. Lawv tau muab qhia los qhia txog tus nqi, tsis yog kev hais nqe.
Cov neeg yuav khoom nug peb tas li:Vim li cas tus nqi ib-tuj rau kev txiav txim me me JCOE thiaj siab dua li rau kev khiav ntau tus qauv?Cov lus teb ncaj ncees yog qhov tseebTus qauv nqi "Peb Pem Teb":
Tag Nrho Tus Nqi Yeeb Nkab Kev Cai = [ Teeb tsa & Tooling Pem Teb ] + [ Khoom Siv Pem Teb ] + [ NRE & Kev Tshuaj Xyuas Pem Teb ]
Piv txwv ua tau: kev faib nyiaj rau qhov project
Qhov Yuav Tsum Tau Ua:API 5L PSL2 X65Q LSAW yeeb nkab, OD 610 hli × WT 32 hli (phab ntsa hnyav raws li kev cai).
Ntim:75 metric tons (≈ 165 meters / 14 qhov ntev ntawm 11.8 m).
| Rooj 2 — 75-tuj kev faib nqi kev txiav txim siab & kev txo nqi ntawm cov khoom (piv txwv) | |||
| Tus Nqi Cheebtsam | Tag Nrho Cov Nqi Kab (USD) | Tus nqi ib chav (USD/Ton) | Kev Siv Nyiaj Rov Qab |
| Phaj Hlau Raw (X65Q) | $89,200 | $1190 / Ib toos | Tus nqi phaj puag ($1,100/t) kho rau ~7.5% kev poob ntawm cov qoob loo (kev txiav cov kav dej, kev khoov, & kev kuaj sim). |
| Kev Teeb tsa & Kev Kho Kab | $4,500 | $60 / Ib toos | Kev teeb tsa cov cuab yeej nias JCOE tshwj xeeb, kev ntsuas qhov sib txuas ntawm cov seam, & cov phaj khoov sim. |
| Cov Khoom Siv SAW Vuam | $6,000 | $80/ Tuj | Cov hlau uas muaj zog ntau dhau, cov dej ntws yooj yim, & lub zog thermal ua ntej cua sov/tom qab vuam. |
| Hydrotest & Kauj Ruam-E Kev Nthuav Dav | $3,750 | $50 / Ib toos | Kev nthuav dav tag nrho (Kauj Ruam-E) + 100% SMYS hydrostatic test tuav. |
| 100% AUT + Yeeb Nkab-Qhov Kawg RT | $4,500 | $60 / Ib toos | 100% Tag nrho lub cev AUT, yeeb nkab-kawg RT/UT, + MTR 3.1 kev xeem tsim nyog (DWTT/Charpy/HIC yog tias xav tau). |
| Tag Nrho Cov Nqi Tsim Khoom | $108,000 | $1,440 / Ib toos | Tus nqi khoom pob tshab rau 75-tuj kev cai luv luv. |
Kev pom ntawm qhov ntsuas: Thawb qhov kev txiav txim los ntawm 75→300 tons thiab tus nqi teeb tsa $4,500 tas li poob qis ntawm $60/ton mus rau $15/ton. Ua ke nrog kev ua haujlwm zoo me ntsis hauv kev txiav phaj thiab kev vuam txuas ntxiv mus, tus nqi ib chav tsev tau txo qis ntawm $1,440/ton mus rau kwv yees li $1,385/ton.—pov thawj tias "qhov them ua ntej" ntawm kev khiav lag luam yog tsav los ntawm kev them rov qab tas li, tsis yog cov nyiaj tau los ntxiv.
6. Kev Tshuaj Xyuas Yeeb Nkab LSAW: Cov Kev Cai Ntsuas UT vs RT
Cov pab pawg yuav khoom sib cav tsis kawg txog seb puas khiavob qho tib siKev Ntsuas Ultrasonic (UT) thiab Kev Ntsuas Radiographic (RT) ntawm cov kab sib txuas ntev yog qhov tsim nyog lossis tsuas yog tus nqi rov ua dua. Cov lus luv luv: lawv ntes tau ntau hom kev puas tsuaj sib txawv, yog li lawv sib pab, tsis yog rov ua dua.
| Rooj 3 — Daim ntawv txheeb xyuas NDT sib ntxiv | ||
| Kev Tshuaj Xyuas Tshwj Xeeb | Kev Ntsuas Ultrasonic (UT / UT) | Kev Kuaj Mob X-ray (RT / X-Ray) |
| Lub cev ua haujlwm | Cov cuab yeej ntsuas ultrasound shear-wave (2.25 - 5 MHz) | Kev siv hluav taws xob X-ray ionizing |
| Lub Hom Phiaj Tseem Ceeb | Cov teeb meem ntawm planar: tsis muaj fusion ntawm sab, vertical cracks | Volumetric defects: roj porosity, slag inclusions |
| Kev Pom Qhov Tob | Siab — qhia qhov tob tseeb hauv phab ntsa hnyav | Tsis muaj — 2D duab ntxoov ntxoo los ntawm sab saud mus rau hauv qab |
| Kev Tshawb Xyuas Ceev | Kev luam theej duab ceev ceev hauv kab (100% ntawm qhov ntev ntawm cov xov) | Kev sim qeeb dua offline (cheeb tsam tiv thaiv kev nyab xeeb los ntawm hluav taws xob) |
| Cov ntaub ntawv pov thawj | Cov ntaub ntawv digital hauv hluav taws xob (A-scan / C-scan) | Daim duab X-ray tas mus li lossis daim duab digital |
UT tsis siv neeg luam theej 100% ntawm qhov ntev ntawm cov xov; lub hom phiaj RT txheeb xyuas cov cim tsis meej ntawm qhov kawg ntawm cov yeeb nkab.
Vim li cas qhov vuam thiaj li hla tau UT tab sis ua tsis tiav RT (thiab rov qab)
Cov lus nug peb tau txais ntau heev:Puas muaj qhov tsis zoo ntawm cov yeeb nkab LSAW hla UT tab sis ua tsis tau RT?
Yog.Qhov me me ntawm cov porosity lossis cov slag tawg ua rau cov nthwv dej suab hla dhau nrog qhov cuam tshuam tsawg kawg nkaus (dhau UT) tab sis pom tseeb tias yog qhov khoob ntawm daim duab X-ray (tsis ua haujlwm RT). Tig nws ib ncig: qhov tawg ntawm phab ntsa ntsug nruj uas sib luag nrog lub teeb X-ray yuav tsis ua rau pom duab ntxoov ntxoo (dhau RT) tab sis cuam tshuam lub teeb ultrasonic ncaj qha rov qab mus rau lub transducer (tsis ua haujlwm UT). Kev qhia meejAPI 5L PSL2feem ntau xav tau ob qho tib si AUT puv npo scanning thiab qhov chaw RT verification, vim tias tus qauv teeb tsa cov kev cia siab ntawm kev sib txuas.EN 10219cov haujlwm, los ntawm qhov sib piv, ua raws li chav kawm tshuaj xyuas thiab cov kev cai ntawm tus neeg yuav khoom sau rau hauv daim ntawv xaj yuav khoom - uas tej zaum yuav xav tau lossis tsis xav tau tib yam kev sib xyaw ua ke. (Peb100% NDT kev sib txuas zoodaim ntawv no qhia txog yuav ua li cas teev ib qho twg kom raug.)
7Kev Ua Zes Yeeb Nkab: Yuav Ua Li Cas Txo Cov Khoom Thauj Khoom Hauv Dej Hiav Txwv ntawm LSAW Shippings
Kev thauj khoom hauv dej hiav txwv rau cov yeeb nkab loj yog tsav los ntawm cov khoom thaujntim, tsis yog qhov hnyav. Vim tias JCOE ua cov qhov ntev thiab txoj kab uas hla raws li koj xav tau, koj tuaj yeem tsim cov khoom xa tuaj kom txo tus nqi xa khoom ib 'meter'.
[ Yeeb nkab zes / telescoping] → yeeb nkab OD me dua sab hauv yeeb nkab OD loj dua = xoom qhov ntim ntxiv
[ Kev kho kom zoo dua ntawm lub thawv ] → qhov ntev raws li koj xav tau (5.8 m / 11.8 m) = 100% ntawm qhov ntim ntawm lub thawv
Kev nthuav dav ib lub yeeb nkab me dua-OD sab hauv ib lub loj dua yuav ua rau qhov chaw dawb mus rau hauv kev thauj khoom txuag tau.
Piv txwv txog kev txuag nyiaj: cov kav dej ua los ntawm cov hlau telescoping
Cov yeeb nkab sab nraud:OD 1016 hli × WT 25 hli LSAW (100 Tons)
Cov yeeb nkab sab hauv:OD 711 hli × WT 16 hli LSAW (70 Tons)
| Rooj 5 — Kev sib piv tus nqi thauj khoom hauv dej hiav txwv (tus qauv piv rau tus nqi sib koom ua ke) | |||||
| Txoj Kev Xa Khoom | Tag Nrho Cov Khoom Thauj Khoom | Qhov Ntim Khoom (CBM) | Tus nqi (/CBM) | Tag Nrho Cov Khoom Thauj Khoom Hauv Dej Hiav Txwv | Khoom thauj khoom / Tuj |
| Kev Thauj Khoom Sib Cais | 170 Tons | 280 CBM | $85 / CBM | $23,800 | $140.00 / Ib toos |
| Kev Xa Khoom Uas Muab Tso Rau Hauv Qhov Rooj (Telescoped) | 170 Tons | 155 CBM | $85 / CBM | $13,175 | $77.50 / Ib toos |
| Cov Nyiaj Txuag Tau Los Ntawm Kev Muag Khoom | — | −125 CBM | — | −$10,625 | Txo 44.6% |
Cov qhov ntev JCOE uas raug cai kuj tseem tuaj yeem txiav mus rau qhov loj me uas haum rau lub thawv (11.8 m rau 40HQ lub thawv) nrog cov khoom tiv thaiv - ua kom qhov chaw tso tawm ntau tshaj plaws thaum tiv thaiv cov kav dej kom tsis txhob sib chwv thaum thauj mus los.
8Daim Ntawv Teev Npe RFQ rau Cov Yeeb Nkab LSAW
Yuav kom tsis txhob muaj teeb meem kev sib txuas lus thaum lub sijhawm npaj RFQ thiab tau txais cov lus hais tseeb ntawm kev txiav txim LSAW, taug kev los ntawm daim ntawv teev npe no:
- Cov lus qhia txog qhov ntev:Hais qhov tseeb OD × qhov tseeb WT hauv millimeters (piv txwv li, 610 mm × 32 mm). Tsis txhob hu NPS/Schedule tsis meej rau cov khoom hnyav phab ntsa.
- Cov khoom qib & tus me nyuam mob:Sau lub npe qib thiab lub xeev (piv txwv li, API 5L PSL2 X65Q quenched/tempered, lossis EN 10219 S355J2H normalized).
- Kev kuaj thiab daim ntawv pov thawj:Kev them nqi NDT (100% AUT seam scan + pipe-end RT) thiab qib ntawv pov thawj (MTC 3.1, lossis MTC 3.2 tus neeg ua tim khawv thib peb los ntawm SGS / Lloyd's).
- Xaus kev npaj & qhov ntev:Lub kaum sab xis (30° – 35° rau kev teeb tsa thaj teb) thiab qhov ntev ntawm lub hom phiaj (11.8 m ±10 hli rau cov khoom tso tawm hauv thawv).
Cov Ntsiab Lus Tseem Ceeb
- JCOE LSAW ua cov yeeb nkab OD, phab ntsa hnyav (txog li 50 hli WT) hauv cov khoom me me dua li lub tshuab UOE feem ntau xav tau.
- Kev nthuav dav txias tag nrho (Kauj Ruam E) txo qhov kev ntxhov siab seem thiab lav qhov haum rau thaj chaw - tsawg dua qhov kev ncua sij hawm vuam.
- Rau ntau daim ntawv thov API 5L PSL2 tseem ceeb, kev kuaj ultrasonic tsis siv neeg thiab kev kuaj xyuas radiographic ntxiv yuav raug teev tseg nyob ntawm qhov kev qhia tshwj xeeb thiab cov kev cai ntawm tus neeg yuav khoom; EN 10219 cov haujlwm ua raws li lawv cov chav kawm tshuaj xyuas tshwj xeeb.
- Kev ua zes yeeb nkab tuaj yeem txo cov khoom thauj hauv dej hiav txwv ~ 45% los ntawm kev xa cov yeeb nkab OD me dua mus rau hauv cov yeeb nkab OD loj dua.
9Cov Lus Nug Feem Ntau (FAQ)
Q1: Qhov txawv tseem ceeb ntawm UOE thiab JCOE LSAW yeeb nkab tsim khoom yog dab tsi?
Qhov txawv yog nyob rau hauv cov txheej txheem tsim. UOE siv cov pwm ib zaug xwb los nias tag nrho cov phaj rau hauv cov duab U thiab O, yog li nws xav tau kev khiav ntau heev los them rau kev hloov pauv pwm. JCOE siv cov pwm nias thoob ntiaj teb los khoov cov phaj maj mam (J → C → O), ua rau muaj kev teeb tsa yooj yim haum rau qhov ntau thiab tsawg thiab cov pawg me me.
Q2: Vim li cas tus nqi ib-tuj thiaj siab dua rau cov xaj me me JCOE?
Cov khoom me me muaj cov nqi pib ruaj khov - kev ntsuas tshuab, kev tsim phaj sim, kev sim hydrostatic, kev teeb tsa NDT - kis mus rau ntau dua tons. Cov chaw tsim hlau nyoos kuj ntxiv cov nqi khiav me me qis dua lawv cov cua sov tsawg kawg nkaus. Cov ntawd yog cov nqi kho saum toj kawg nkaus, tsis yog cov nyiaj ntxiv.
Q3: Kev nthuav dav ntawm lub tshuab (Kauj Ruam E) tiv thaiv cov teeb meem vuam hauv thaj teb li cas?
Qhov kev nthuav dav txias tag nrho ua rau cov yeeb nkab muaj qhov loj me, puag ncig (ovality), thiab ncaj nraim thoob plaws nws qhov ntev. Qhov ntawd tshem tawm qhov sib koom ua tsis sib xws thaum lub sijhawm haum, txuag cov neeg vuam zog thiab tiv thaiv kom tsis txhob muaj kab nrib pleb.
Q4: Kuv puas xav tau ob qho tib si UT thiab RT ntawm cov xov?
Rau API 5L PSL2 kev pabcuam tseem ceeb, feem ntau yog - tus qauv feem ntau xav tau ob qho tib si AUT puv npo scanning thiab qhov chaw RT. EN 10219 ua haujlwm ua raws li chav kawm tshuaj xyuas sau rau hauv daim ntawv yuav khoom. UT ntes cov qhov tsis zoo ntawm planar (cov kab nrib pleb, tsis muaj fusion) thiab muab qhov tob; RT ntes cov qhov tsis zoo volumetric (porosity, slag).
10Xaus Lus
Cov txheej txheem JCOE txuas qhov sib txawv ntawm kev tsim khoom ntau thiab kev xav tau ib zaug xwb. Los ntawm kev sib txuas ua ke kev tsim khoom yooj ywm, kev nthuav dav txias tag nrho, kev tswj hwm dual-NDT, thiab kev txhim kho kev xa khoom, JCOE muab cov haujlwm LSAW phab ntsa hnyav rau kev txhim khu kev qha thiab txoj hauv kev pheej yig - tsis muaj kev tswj hwm ntau ntawm lub tshuab UOE.
Rau cov neeg yuav khoom EPC uas xav tau kev pabLSAW vs. SSAW vs. Seamless, lossis npaj cov kev pab cuam cua ntsawj hauv hiav txwv thiab cov qauv hnyav, qhov kev txav mus los tiag tiag yog npaj RFQ kom meej (siv daim ntawv teev npe saum toj no) thiab cia cov lej - tsis yog txoj cai MOQ ntawm lub Hoobkas - txiav txim siab.
Xav tau cov yeeb nkab LSAW tshwj xeeb rau cov haujlwm Offshore lossis Infrastructure?
Qhia koj qhov OD, phab ntsa tuab, qib hlau, thiab cov qauv uas yuav tsum tau ua nrog peb pab neeg ua haujlwm engineering. Peb yuav soj ntsuam qhov ua tau ntawm peb txoj kab JCOE thiab xa rov qab cov kev daws teeb meem thiab cov lus hais - txawm tias nws yog kev txiav txim siab ntawm cov qauv lossis qhov seem ntawm txoj kab xa hluav taws xob uas tau ntawv pov thawj.
Thov Kev Hais Nqe Txog Kev Siv Tshuab →
Cov duab qhia tau qhia txog Yuantai Derun's JCOE/LSAWkev paub txog kev tsim khoom (API 5L PSL2/ EN 10219) thiab tsuas yog rau kev siv tus nqi xwb. Raws li tus nqi hlau thiab cov khoom thauj khoom hloov pauv tas li, thov tsom mus rau qhov sib txawv ntawm tus nqi. Tiv tauj peb txhua lub sijhawm rau kev hais nqe raws li koj xav tau.
Lub sijhawm tshaj tawm: Lub Yim Hli-06-2026
