Karabo e Potlakileng: Phaephe ea JCOE LSAW e loketse lits'ebetso tse entsoeng ka lebota le boima hobane e fana ka tlhahiso e tenyetsehang, litekanyo tse nepahetseng, le boleng bo tšepahalang ba weld. Ho fapana le tlhahiso ea setso ea UOE, JCOE e ka sebetsana ka katleho le bophara bo ikhethileng, botenya ba lebota, le bongata bo thehiloeng mererong, e leng se etsang hore e be tharollo e sebetsang bakeng sa meaho ea lebopong la leoatle, liphaephe tsa matla le merero e boima ea kaho.
Tafole ea likateng
- 1. Phaephe ea JCOE LSAW ke Eng?
- 2. JCOE vs UOE Pipe: Papiso ea Ts'ebetso
- 3. Liphaephe tsa JCOE LSAW li Sebelisoa Hokae?
- 4. Phaephe ea LSAW e Etsoa Joang? Ho Theha JCOE Mohato ka Mohato
- 5. Mohlala oa Karohano ea Litšenyehelo: Odara ea JCOE LSAW ea Lithane tse 75 e Ikhethileng
- 6. Tlhahlobo ea Liphaephe tsa LSAW: Litlhoko tsa Teko ea UT khahlanong le ea RT
- 7. Ho Beha Diphaephe: Mokhoa oa ho Fokotsa Thepa ea Leoatle ho Romelloang Liphaepheng tsa LSAW
- 8. Lethathamo la Litlhahlobo tsa RFQ tsa Pipe ea LSAW e Ikhethileng
- 9. Lipotso Tse Botsoang Khafetsa
- 10. Qetello
1. Phaephe ea JCOE LSAW ke Eng?
Phaephe ea JCOE LSAWke phaephe ya tshepe e tjheseditsweng ka arc e telele e entsweng ka ho etsa poleiti e bataletseng ya tshepe butle-butle ho ba sebopeho sa cylindrical ka tatellano ya JCO, e latelwang ke katoloso ya metjhini ya bolelele bo felletseng. Ho fapana le phaephe e tjheseditsweng ka spiral, phaephe ya LSAW e na le seam e le nngwe e otlolohileng ya weld e telele, e etsang hore e lokele ditshebediso tse hlokang ho nepahala ho hoholo le ho tshepahala ha sebopeho.
Meahong e lebōpong la leoatle, liphaepheng tsa eneji, le mererong e meholo ea kaho, boholo ba liphaephe tse tloaelehileng hangata ha boa lekana. Baenjiniere ba ka 'na ba hloka bophara ba kantle bo ikhethileng, botenya ba mabota a boima, limaraka tse khethehileng tsa tšepe, kapa litlhoko tse khethehileng tsa tlhahlobo. Bakeng sa liodara tsena tse thehiloeng mererong, tlhahiso e kholo ea UOE e ka ba bonolo ho e tenyetseha ka lebaka la mohlala oa eona oa tlhahiso o phahameng.
Tlhahiso ea JCOE e fana ka ho tenyetseha ho hoholo bakeng sa litekanyo tse ikhethileng le lihlopha tse nyane tsa tlhahiso ha ka nako e ts'oanang e boloka litlhoko tsa boleng tse hlokahalang bakeng sa lits'ebetso tsa bohlokoa. Yuantai Derun e sebelisa theknoloji ea JCOE bakeng sa merero ea liphaephe tse bophara bo boholo le tse boima, e tšehetsa lits'ebetso tsa meralo ea motheo, matla le boenjiniere ba meaho.
2. JCOE vs UOE Pipe: Papiso ea Ts'ebetso
Pele ho hlakisa, ho thusa ho bona kamoo lits'ebetso tse 'ne tse kholo li kopanang kateng le lintho tse peli tseo bareki ba hlileng ba li tsotellang: hore na ba ka etsa jiometri efe, le hore na ba tla amohela odara e nyane hakae.
| Tafole ea 1 — Ts'ebetso ea tlhahiso le papiso ea ho tenyetseha ha khoebo | ||||
| Tšobotsi ea Botekgeniki le ea Khoebo | Ts'ebetso ea JCOE (LSAW) | Ts'ebetso ea UOE (LSAW) | Ts'ebetso ea ERW | SSAW (Spirale) |
| Mokhoa oa ho Theha | Ho kobeha mohato ka mohato (JCOE) ho tsoelang pele | Ho hatakela U ka ketso e le 'ngoe + ho tobetsa O | Ho etsa moqolo o batang o tsoelang pele | Ho kobeha ha koili e helical e tsoelang pele |
| Tlhophiso ea Seam | Seam e le 'ngoe e otlolohileng ea longitudinal | Seam e le 'ngoe e otlolohileng ea longitudinal | Seam e le 'ngoe e otlolohileng ea longitudinal | Sehokelo se tswelang pele sa ho potoloha |
| Bophara ba Kantle (OD) | 406 mm – 1422 mm (16″ – 56″) | 508 mm – 1422 mm (20″ – 56″) | 21.3 mm – 610 mm (1/2″ – 24″) | 219 mm – 3048 mm (8″ – 120″) |
| Botenya ba Lebota bo Holimo (Boima) | Ho fihlela ho 50 mm+ (e boima / e boima haholo) | E ntlafalitsoe bakeng sa liphaephe tsa phetiso ea matla tse nang le mabota a boima a phahameng (bokhoni bo fapana ho ea ka polasi) | Ka tlwaelo < 20 mm | Ka tlwaelo < 25 mm |
| Ho Feto-fetoha ha Lisebelisoa | Mochini oa khatiso oa bokahohle oa shoa (o tenyetseha) | Lisete tsa die tse tiileng tse inehetseng | Lisete tsa meqolo ea boholo bo tsitsitseng | Lihlooho tse ka fetoloang tsa ho etsa likhutlo |
| MOQ ea Moruo | E thehiloe morerong; hangata e loketse lihlopha tse nyane ho latela maemo a feme | Lithane tse 1,000 – 2,000+ | Lithane tse 100+ (tse itšetlehileng ka coil) | Lithane tse 100+ |
| Boemo ba Khatello ea Matšoenyeho a Masala | E tlase haholo kamora katoloso e felletseng | Tlase (e atolositsoe ka mechine) | Ho itshetlehile ka mokhoa wa ho bopa le kalafo ya mocheso | Khatello e phahameng (e rarahaneng ea helical) |
Maikutlo a moenjiniere:ERW e ntle bakeng sa mela e tloaelehileng ea mabota a masesaane, 'meSSAW e sebediswa haholo bakeng sa ditshebediso tsa bophara bo boholo moo ditlhoko tsa ho tjheseletsa ka sekoting le tsa projeke di amohelehang.JCOE LSAW ke mokhoa o etsang phaephe e entsoeng ka OD e ikhethileng, e nang le lebota le boima (mohlala, OD 720 mm × WHET 38 mm) ka lihlopha tse nyane tse thehiloeng morerong.ntle le ho baka kotlo ea phetoho ea lisebelisoa tsa lipalo tse hlano. (Sheba ho teba ha rona ho tebileng hoLSAW khahlanong le SSAW khahlanong le Seamless.)
3. Liphaephe tsa JCOE LSAW li Sebelisoa Hokae?
Hobane JCOE e sebetsana le bophara bo sa tlwaelehang le mabota a boima ka boholo bo laolehang, e hlaha kae kapa kae moo tšepe ea sebopeho e hlokang moalo o nepahetseng, o netefalitsoeng oa bolelele bo bolelele. Tšebeliso e tloaelehileng haholo:
- Li-monopile tsa moea tsa leoatleng le likotoana tsa phetoho.Li-monopile li sututsa bophara ba 8-12 m 'me li hloka botenya le chitja tse tsitsitseng; JCOE e lumella jarete ho fihlela sebopeho se nepahetseng ntle le boitlamo ba UOE-scale.
- Meaho ea baki le liforomo tsa leoatleng.Likarolo tsa maoto, li-braces, le litataiso tsa conductor li hloka phaephe e leboteng le boima e nang le mamello e tiileng - e leng sebaka seo JCOE e leng ho sona.
- Mehala ea phetisetso ea oli le khase.Bakeng sa likarolo tse hlokang WT e ikhethileng kapa sehlopha se itseng haufi le ho tlamahana, JCOE e fana ka karolo eo spiral mill e ke keng ea e fana.
- Litšiea tse boima tsa meaho.Marulelo a lebala la lipapali, liholo tsa lipontšo le liforeimi tsa indasteri li sebelisa likarolo tse kholo tse nang le sekoti tse khutlonnetsepa le tse chitja moo taolo ea boholo e leng ea bohlokoa ho feta bophahamo.
Maemong ohle moreki ha a reke tone e theko e tlase haholo — ba hloka phaephe e lekanang le setšoantšo mme e feta tlhahlobo ka lekhetlo la pele. Ke sona sekheo seo JCOE e se tlatsang.
4. Phaephe ea LSAW e Etsoa Joang? Ho Theha JCOE Mohato ka Mohato
LebitsoJCOEe hlalosa tatellano ea mechine e sebelisoang ho bopa poleiti e boima ea tšepe:
Poleiti ea Tšepe → Ho Kobeha ka J → Ho Kobeha ka C → Ho Kobeha ka O → Ho Welding ka ID/OD SAW → Mohato oa E (Katoloso)
Di-dies tsa khatiso tsa bokahohle di koba poleiti kgato ka kgato (J → C → O) — ha ho hlokahale disebediswa tse inehetseng bakeng sa boholo bo bong le bo bong.
- Ho kobeha pele ho moedi:Ho qhaqha ka mechine ho bopa mathoko a poleiti ho ea ho radius e reriloeng, ho tlosa matheba a bataletseng ao ho seng joalo a neng a tla lula haufi le moalo.
- Ho kobeha ha J:Mochini o hatisang oa hydraulic o kobeha lehlakore le leng butle-butle ho ba profil ea "J".
- Ho kobeha ha C:Moeli o fapaneng o hatelloa kgato ka kgato ho "C" e bulehileng.
- Ho kobeha ha O:Mochini o kwala poleiti hore e be "O" e bulehileng, o hokahanya mathoko bakeng sa ho tjheseletsa ka hara arc e ka tlasa metsi.
- Ho Welding ea Arc e Kenelletseng ka Tlase (SAW):Liphase tsa kahare tse nang le terata e ngata (ID) le kantle (OD) li ikopanya le seam. Mocheso o phahameng o kenyang o khanna ho kopana ho tebileng mme o chesa litšila tse ka bang teng.
Mohato oa Katoloso (E): Katoloso ea Mechini e batang ea Bolelele bo Felletseng
“E” ea ho qetela ke katoloso. Hlooho ea expander ea hydraulic ea likarolo tse ngata e tsamaea bolelele bohle ba ka hare ba phaephe, e e atolosa ho tloha pheletsong ho ea qetellong. Ena ke mohato o arolang JCOE le mabenkele a bonolo a kobang lipoleiti.
[ Phaephe e sa atolosoang e welletsoeng] → [Hlooho ea ka hare ea hydraulic expander] → [Ho tsitsa ha boholo le ho chitja ho ntlafetseng]
Katoloso e felletseng ea mechini e imolla khatello e setseng 'me e notlela ho chitja le ho otloloha ho potoloha phaephe eohle.
- Ho imolla khatello ea maikutlo e setseng:Ho etsa le ho tjheseletsa ka diphaseje tse ngata ho siya kgatello ya mechine le ya mocheso sebakeng seo. Katoloso e batang e etsa hore tshepe e fete hanyane ntlha ya yona ya ho tenyetseha, e imolla kgatello e setseng le ho ntlafatsa botsitso ba boholo le botsitso ba tshebetso ya ho tjheseletsa.
- Tiisetso ea ho lokisa sebaka:Katoloso e qobella phaephe ho ba chitja ka thata (ovality) le ho otloloha. Lipheletso tse hloekileng tsa phaephe li bolela ho lekana sebakeng seo ho e-na le ho loana ka nako ea ho tjheseletsa masimong le ho lokisa likhohlano.
5. Mohlala oa Karohano ea Litšenyehelo: Odara ea JCOE LSAW ea Lithane tse 75 e Ikhethileng
Ela Hloko: Lipalo tse ka tlase ke tsa mohlala, li thehiloe holim'a sehlopha se ikhethileng sa lithane tse 75. Theko ea 'nete e itšetlehile ka boleng ba tšepe, litlhoko tsa setifikeiti, le li-incoterms. Li arolelanoa ho bontša sebopeho sa litšenyehelo, eseng e le khotheishene.
Bareki ba re botsa khafetsa:"Ke hobane'ng ha theko ea tonne ka tonne e phahame bakeng sa odara ea JCOE ea sehlopha se senyenyane ho feta bakeng sa ho matha ka bongata ho tloaelehileng?"Karabo e tšepahalang ke e hlakilengMohlala oa litšenyehelo tsa "Mafatše a Mararo":
Theko ea Phaephe e Ikhethileng ka Kakaretso = [Seta le Mokato oa Lisebelisoa] + [Mokato oa Thepa] + [Mokato oa NRE le Mokato oa Tlhahlobo]
Mohlala o sebetsang: kabo ea litšenyehelo tsa projeke
Tlhokahalo:Phaephe ea API 5L PSL2 X65Q LSAW, OD 610 mm × Boima ba 32 mm (lebota le boima le ikhethileng).
Molumo:Lithane tse 75 tsa metric (≈ limithara tse 165 / bolelele ba 14 ba 11.8 m).
| Tafole ea 2 — Kabo ea litšenyehelo tsa odara ea lithane tse 75 le ho fokotsa litšenyehelo tsa yuniti (e hlalosang) | |||
| Karolo ea Litšenyehelo | Kakaretso ea Litšenyehelo tsa Mohala (USD) | Theko ea Yuniti (USD/Tone) | Mekhaniki ea ho Fokotsa Chelete |
| Poleiti ea Tšepe e Tala (X65Q) | $89,200 | $1190 / Tone | Litšenyehelo tsa poleiti ea motheo ($1,100/t) li lokisitsoe bakeng sa tahlehelo ea chai ea ~7.5% (ho khaola ka har'a lipeipi, ho beveling, le ho nka sampole ea liteko). |
| Seta le Tekanyo ea Mela | $4,500 | $60 / Tone | Setaele se inehetseng sa lisebelisoa tsa khatiso tsa JCOE, tlhahlobo ea seam-tracker, le lipoleiti tse kobehang liteko. |
| Lintho tse sebelisoang tsa ho tjheseletsa tsa SAW | $6,000 | $80/ Tone | Terata e matla e nang le diphase tse ngata, phallo ya motheo, le matla a mocheso a pele ho mocheso/kamora ho weldwa. |
| Katoloso ea Teko ea Metsi le Mohato oa E | $3,750 | $50 / Tone | Katoloso ea mechine ea bolelele bo felletseng (Step-E) + 100% SMYS hydrostatic test holding. |
| 100% AUT + Phaello ea Phaephe RT | $4,500 | $60 / Tone | Liteko tsa 100% tsa AUT ea 'mele o felletseng, RT/UT ea pheletso ea phaephe, + MTR 3.1 (DWTT/Charpy/HIC haeba ho hlokahala). |
| Kakaretso ea Litšenyehelo tsa Tlhahiso | $108,000 | $1,440 / Tone | Theko ea yuniti e bonaletsang bakeng sa lebelo le lekhutšoanyane la lithane tse 75 tse ikhethileng. |
Temoho ea sekala: Sutumelletsa odara ho tloha ho 75→Lithane tse 300 'me setaele se tsitsitseng sa $4,500 se fokotseha ho tloha ho $60/ton ho ea ho $15/ton. Ha se kopantsoe le keketseho e nyane ea ts'ebetso ea ho seha lipoleiti le ho tjheseletsa ho tsoelang pele, theko ea yuniti e fokotseha ho tloha ho $1,440/ton ho ea ho hoo e ka bang $1,385/ton.—bopaki ba hore "premium" ho tsamaiso e ikgethileng e susumetsoa ke ho fokotseha ha tjhelete ho sa fetoheng, eseng phaello e phahamisitsweng.
6. Tlhahlobo ea Liphaephe tsa LSAW: Litlhoko tsa Teko ea UT khahlanong le ea RT
Lihlopha tsa theko li pheha khang ka ho sa feleng mabapi le hore na li tsamaisaka bobeliTeko ea Ultrasonic (UT) le Teko ea Radiographic (RT) holim'a moalo o molelele lia hlokahala kapa lia ipheta feela. Mofuta o mokhutšoanyane: li tšoara lihlopha tse fapaneng tsa liphoso, kahoo lia tlatsana, ha li hlokehe.
| Tafole ea 3 — Matrix ea tlhahlobo ea NDT e tlatsetsang | ||
| Tšobotsi ea Tlhahlobo | Teko ea Ultrasonic (UT / AUT) | Teko ea X-ray (RT / X-Ray) |
| Mokhoa oa 'Mele | Li-probe tsa ultrasound tsa maqhubu a shear (2.25 - 5 MHz) | Mahlaseli a X-ray a ionizing |
| Sepheo sa Sekoli sa Motheo | Liphoso tsa planar: ho hloka ho kopana ha mahlakore, mapetso a otlolohileng | Liphoso tsa volumetric: porosity ea khase, li-inclusions tsa slag |
| Temoho ea Botebo | Holimo — ho supa botebo bo nepahetseng leboteng le boima | Ha ho letho — Pontšo ea moriti oa 2D ho tloha holimo ho ea tlase |
| Lebelo la Tlhahlobo | Sekena se iketsang se potlakileng ka ho fetisisa se kenang ka hare (bolelele ba moalo ka 100%) | Teko e liehang ea inthanete (libaka tse hlakileng tsa polokeho ea mahlaseli) |
| Litokomane | Li-log tsa dijithale tsa elektroniki (A-scan / C-scan) | Filimi ea X-ray e sa feleng kapa setšoantšo sa dijithale |
UT e iketsang e hlahloba bolelele ba moalo ka 100%; RT e shebiloeng e netefatsa matšoao a sa hlakang lipheletsong tsa phaephe.
Hobaneng ha weld e ka feta UT empa ea hloleha RT (le ka morao)
Potso eo re e fumanang haholo:"Na phoso e ka bang teng phaepheng ea LSAW e ka feta UT empa ea hloleha ho sebetsa RT?"
E.Ho ba le masoba a manyane kapa slag e hasaneng e dumella maqhubu a modumo ho feta ka ponaletso e nyane (e feta UT) empa e hlahella ka ho hlaka e le diphoso filiming ya X-ray (e hloleha RT). E phetle: lepetso le tiileng la lehlakore le otlolohileng le bapileng le lebone la X-ray le ka nna la se ke la hlahisa moriti o bonahalang (le feta RT) empa le bonahatsa lebone la ultrasonic ka ho toba ho transducer (le hloleha UT).API 5L PSL2Hangata ho hlokahala hore ho skenwe ka botlalo ka AUT le netefatso ya spot RT, hobane tekanyetso e beha ditebello tse thata tsa weld-integrity.EN 10219diporojeke, ka lehlakoreng le leng, di latela sehlopha sa tlhahlobo le ditlhoko tsa moreki tse ngotsweng ka hara odara ya theko — tse ka hlokang kapa tsa se hloke motswako o tshwanang. (Ya ronaBotšepehi ba weld ba 100% NDTsengoloa se akaretsa mokhoa oa ho totobatsa e 'ngoe ea tsona ka nepo.)
7Ho Beha Diphaephe: Mokhoa oa ho Fokotsa Thepa ea Leoatleng ho Romelloang Liphaepheng tsa LSAW
Thepa ea leoatle bakeng sa phaephe e bophara bo boholo e tsamaisoa ke thepabophahamo ba modumo, eseng boima. Hobane JCOE e etsa bolelele le bophara bo ikhethileng, o ka hlophisa thomello ho fokotsa litšenyehelo tsa ho fihla ka mithara.
[ Ho haha sehlaha sa liphaephe / telescoping ] → phaephe e nyane ea OD ka har'a phaephe e kholo ea OD = bophahamo bo sa eketsoang
[ Ntlafatso ea setshelo ] → bolelele bo ikhethileng (5.8 m / 11.8 m) = chai ea bophahamo ba setshelo ea 100%
Ho shebella phaephe e nyane ea OD ka hare ho e kholoanyane ho fetola sebaka se lokolohileng hore e be thepa e bolokiloeng.
Mohlala o sebetsang oa ho boloka chelete: liphaephe tsa sebopeho tse nang le telescoping
Phaephe ea kantle:OD 1016 mm × Boima ba 25 mm LSAW (Lithane tse 100)
Phaephe ea ka hare:OD 711 mm × Boima ba 16 mm LSAW (Lithane tse 70)
| Tafole ea 5 — Papiso ea litšenyehelo tsa thepa ea leoatleng (e tloaelehileng khahlanong le e kentsoeng sehlaheng) | |||||
| Mokhoa oa ho Romela | Kakaretso ea Thepa | Bophahamo ba Thepa (CBM) | Sekhahla (/CBM) | Kakaretso ea Thepa ea Leoatle | Thepa / Tone |
| Thomello e Arohileng ea Thepa | Lithane tse 170 | 280 CBM | $85 / CBM | $23,800 | $140.00 / Tone |
| Thomello e nang le sehlaha (e nang le telescope) | Lithane tse 170 | 155 CBM | $85 / CBM | $13,175 | $77.50 / Tone |
| Poloko ea Net e Fanoe | — | −125 CBM | — | −$10,625 | Phokotso ea 44.6% |
Bolelele ba JCOE bo ikhethileng bo ka boela ba sehoa ho ea ka litekanyo tse loketseng lijana (11.8 m bakeng sa mabokose a 40HQ) ka li-spacer tse sireletsang - ho eketsa chai ea sebaka ha ka nako e ts'oanang ho thibela liphaephe ho ama tsela.
8Lethathamo la RFQ la Pipe ea LSAW e Ikhethileng
Ho qoba mathata a tloaelehileng a puisano nakong ea ho lokisetsa RFQ le ho fumana khotheishene e nepahetseng ho odara ea LSAW e ikhethileng, tsamaea ka lethathamo lena la lintlha:
- Litlhaloso tsa litekanyo:Bolela OD e nepahetseng × WT e nepahetseng ka limilimithara (mohlala, 610 mm × 32 mm). Qoba ho letsa NPS/Kemiso e sa hlakang linthong tse leboteng le boima.
- Boemo ba thepa le ho fana ka thepa:Bolela sehlopha le boemo (mohlala, API 5L PSL2 X65Q e timme/e halefisitsoeng, kapa EN 10219 S355J2H e tlwaelehileng).
- Teko le setifikeiti:Kabo ea NDT ea taelo (100% AUT seam scan + pipe-end RT) le boemo ba setifikeiti (MTC 3.1, kapa paki ea motho oa boraro ea MTC 3.2 ke SGS / Lloyd's).
- Tokiso le bolelele ba qetello:Sekhutlo sa bevel (30° – 35° bakeng sa ho lekana tshimo) le bolelele ba sepheo (11.8 m ± 10 mm bakeng sa chai ya setshelo).
Lintlha tsa Bohlokoa
- JCOE LSAW e etsa phaephe e entsoeng ka mokhoa o ikhethileng oa OD, e nang le lebota le boima (ho fihlela ho 50 mm WT) ka lihlopha tse nyane tse thehiloeng morerong ho feta kamoo sile ea UOE e hlokang ka tloaelo.
- Katoloso e feletseng ea serame (Mohato oa E) e imolla khatello e setseng 'me e tiisa ho lekana ha tšimo - ho fokotsa tieho ea ho tjheseletsa.
- Bakeng sa lits'ebetso tse ngata tsa bohlokoa tsa liphaephe tsa API 5L PSL2, liteko tsa ultrasonic tse iketsahalletseng le tlhahlobo e eketsehileng ea radiographic li ka hlalosoa ho latela litlhaloso tse sebetsang le litlhoko tsa moreki; merero ea EN 10219 e latela sehlopha sa eona sa tlhahlobo se boletsoeng.
- Ho haha diphaephe ho ka fokotsa thepa ya lewatleng ka ~45% ka ho romela phaephe e nyane ya OD ka hara phaephe e kgolo ya OD.
9Lipotso Tse Botsoang Khafetsa (Lipotso Tse Botsoang Khafetsa)
P1: Phapang e kgolo ke efe pakeng tsa tlhahiso ya diphaephe tsa UOE le JCOE LSAW?
Phapang e teng mekheniking ea ho bopa. UOE e sebelisa li-dies tse thata tse sebetsang ka bonngoe ho hatella lipoleiti tse felletseng ho libopeho tsa U le O, kahoo e hloka ho matha ho hoholo ho lefa phetoho ea li-die. JCOE e sebelisa li-dies tsa khatiso tsa bokahohleng ho koba lipoleiti butle-butle (J → C → O), e nolofalletsang litlhophiso tse tenyetsehang tse loketseng boholo bo ikhethileng le lihlopha tse nyane.
P2: Ke hobane'ng ha theko ka tonne e phahame bakeng sa liodara tse nyane tsa JCOE tse entsoeng ka mokhoa o ikhethileng?
Lihlopha tse nyane li na le litšenyehelo tse tsitsitseng tsa motheo - ho lekanya mochini, ho etsa poleiti ea teko, tlhahlobo ea hydrostatic, ho seta NDT - ho hasane holim'a lithane tse fokolang. Li-mill tsa tšepe tse tala le tsona li eketsa litefiso tse nyane tse sebetsang ka tlase ho bonyane ba tsona ba mocheso bo tloaelehileng. Tsena ke litšenyehelo tse tsitsitseng, eseng phaello e eketsehileng.
P3: Katoloso ea mechini (Mohato oa E) e thibela mathata a ho tjheseletsa masimo joang?
Katoloso e batang ea bolelele bohle e qobella phaephe ho ea bophara bo nepahetseng, ho chitja (ovality), le ho otloloha ka bolelele bohle ba eona. Seo se felisa ho se lumellane hantle ha manonyeletso a ho lekana, ho boloka mosebetsi oa ho kopanya litšepe le ho thibela ho petsoha ha seam.
P4: Na ke hloka UT le RT ka bobeli holim'a seam?
Bakeng sa tšebeletso ea bohlokoa ea API 5L PSL2, ka kakaretso e, — hangata maemo a hloka ho hlahlojoa ha AUT ka bolelele bo felletseng le ho bona RT. Mosebetsi oa EN 10219 o latela sehlopha sa tlhahlobo se ngotsoeng ka tatellano ea theko. UT e tšoara liphoso tse planar (mapetso, ho hloka ho kopana) 'me e fana ka botebo; RT e tšoara liphoso tsa volumetric (mapetso, slag).
10Qetello
Ts'ebetso ea JCOE e koala sekheo pakeng tsa tlhahiso ea bongata bo boholo le litlhoko tsa boenjiniere tse etsoang hang feela. Ka ho kopanya sebopeho se tenyetsehang, katoloso e batang ea bolelele bo felletseng, taolo ea NDT e habeli, le ntlafatso ea thepa, JCOE e fa merero ea LSAW e entsoeng ka mokhoa o ikhethileng tsela e tšepahalang le e theko e tlaase - ntle le tlhokomelo e kholo ea tšilo ea UOE.
Bakeng sa bareki ba EPC ba lekanyangLSAW khahlanong le SSAW khahlanong le Seamless, kapa ho rera mananeo a moya o fokang lewatleng le a sebopeho se boima, mohato o sebetsang ke ho lokisa RFQ e hlakileng (sebelisa lenane la ho hlahloba le ka hodimo) mme o tlohele dinomoro - eseng leano la MOQ la feme - di etse qeto.
Na o hloka Pipe ea LSAW e Ikhethileng bakeng sa Merero ea Offshore kapa ea Meralo ea Motheo?
Abelana OD ea hau, botenya ba lebota, boemo ba tšepe, le litlhoko tse tloaelehileng le sehlopha sa rona sa boenjiniere. Re tla lekola monyetla oa tlhahiso moleng oa rona oa JCOE 'me re khutlise tharollo ea tekheniki le khotheishene - ebang ke odara ea sebopeho kapa karolo ea mohala oa phetisetso e netefalitsoeng.
Kopa Khoteshene ea Tekheniki →
Lipalo tse bontšitsoeng li bontša JCOE/ ea Yuantai DerunLSAWphihlelo ea tlhahiso (API 5L PSL2/ EN 10219) mme ke tsa tshupiso ya sebopeho sa ditjeo feela. Ha ditheko tsa tshepe le thepa di ntse di fetoha kamehla, ka kopo tsepamisa maikutlo hodima mekgwa ya ditjeo. Ikopanye le rona neng kapa neng bakeng sa khotheishene e phelang, e ikgethileng.
Nako ea poso: Phato-06-2026
