1. Tšepe ea Womic: Bokhoni ba Tlhahiso le Matla a Khamphani
Womic Steel Group e tsamaisa mela e mengata ea tlhahiso ea LSAW e nang le bokhoni bo tsoetseng pele bakeng sa tlhahiso ea X70 e matla haholo. X70 e hloka lipoleiti tse laoloang ka mokhoa oa thermomechanically (TMCP), ho pholisa ka potlako, le taolo e thata haholo ea ho kenya mocheso ka ho tjheseletsa.
●Mohala oa JCOE:Bakeng sa bophara ba 406mm – 1,422mm (16″–56″), botenya ba lebota bo fihlang ho 50.8mm. JCO e bopjwang mohato ka mohato ka katoloso ya mechini. Ho kenngwa ha mocheso nakong ya ho tjheseletsa SAW ho lekanyeditswe ho ≤ 2.5 kJ/mm.
● Mola oa UOE:Bakeng sa bophara ba 508mm – 1,220mm (20″–48″), botenya ba lebota bo fihlang ho 40mm. Ho etsa U ebe ho etsa O ka katoloso ea haeteroliki. Bophara bo phahameng (± 0.15% OD). E kgethwa bakeng sa X70 ka lebaka la thepa ea mechini e tsitsitseng.
● Poleiti e Menoang (Seam se le Seng):Bakeng sa bophara ba 600mm – 1,600mm (24″–63″), botenya ba lebota ho tloha ho 25mm ho isa ho 70mm. Poleiti e le 'ngoe e phuthoa ka har'a silindara. E sebelisoa bakeng sa lits'ebetso tse boima tsa lebota la X70.
● Poleiti e Menoang (Seam e Habeli):Bakeng sa botenya ba lebota > 50.8mm ho fihlela ho 80mm. E sebelisoa bakeng sa liphaephe tsa CO₂ tse nang le khatello e phahameng haholo.
Bokgoni bohle ba LSAW bo feta ditone tse 300,000 ka selemo, ka tlhahiso e inehetseng ya X70 e fetang ditone tse 50,000 ka selemo. Womic Steel e na le API 5L Monogram (e netefaditsweng ke X70 PSL2), ISO 9001, CE PED, tumello ya DNV GL, mme e hlahlojwa kgafetsa ke dikhamphani tse kgolo tsa oli. Rekoto ya lefatshe ka bophara ka diphaephe tsa X70 tse fetang 800 km tse fanweng.
Ho tenyetseha ha Tlhahiso bakeng sa X70:
● JCOE: 406–1,422mm OD × 6.0–50.8mm Boima × ≤ 18m
● UOE: 508–1,220mm OD × 6.0–40.0mm Boima × ≤ 24m (bophara ± 0.15%)
● Poleiti e phutholohileng (sehokelo se le seng): 600–1,600mm OD × 25–70mm Boima × ≤ 12m
● Poleiti e phutholohileng (sehokelo se habeli): 1,000–2,000mm OD × 25–80mm Boima × ≤ 12m
Liphaephe tsohle tsa X70 li fanoa ka UT e iketsang ea 100% e nang le TOFD, teko ea tšusumetso ea Charpy mochesong o boletsoeng, le DWTT bakeng sa taolo ea ho ata ha ho robeha. PWHT e sebelisoa ha ho hlokahala bakeng sa tšebeletso e bolila.
2. API 5L X70: Sebopeho sa thepa le litšobotsi tsa ts'ebetso
API 5L X70 (L485) ke mofuta oa phaephe ea mohala o matla o etselitsoeng phetiso ea khase e phahameng ea khatello e phahameng sebakeng se selelele. Matla a fokolang a tlhahiso ke 485 MPa (70,300 psi) le matla a ho thaepa a 570 MPa (82,700 psi). X70 e hlahisoa ho sebelisoa TMCP e tsoetseng pele e nang le pholiso e potlakileng ho hlahisa acicular ferrite kapa bainitic microstructure. PSL2 ke ea bohlokoa bakeng sa X70; PSL1 ha e sebelisoe le ka mohla.
Sebopeho sa Lik'hemik'hale (Tlhahlobo ea Lesela, % e phahameng ka boima - PSL2):
| Karolo | API 5L X70 PSL2 (max %) | Tšebeletso e Bolila (sepheo se tloaelehileng) |
| C | 0.12 | ≤ 0.08 |
| Mn | 1.70 | ≤ 1.50 |
| P | 0.025 | ≤ 0.015 |
| S | 0.015 | ≤ 0.002 |
| Si | 0.45 | 0.15-0.35 |
| V | 0.10 | ≤ 0.06 |
| Nb | 0.08 | 0.04-0.07 |
| Ti | 0.04 | ≤ 0.025 |
| Mo | Ha ea hlalosoa | ≤ 0.35 (bakeng sa bolila) |
| Ni | Ha ea hlalosoa | ≤ 0.50 (bakeng sa mocheso o tlase) |
| Cu | Ha ea hlalosoa | ≤ 0.30 |
| Cr | Ha ea hlalosoa | ≤ 0.30 |
| CEV | ≤ 0.43 (e tloaelehileng ≤ 0.41) | ≤ 0.40 (e tloaelehileng ≤ 0.38) |
| Pcm | ≤ 0.25 | ≤ 0.22 |
Bakeng sa tšebeletso e bolila, Womic e sebelisa khabone e tlase (C ≤ 0.06%), sebabole se tlase haholo (S ≤ 0.0015%), lipoleiti tse phekotsoeng ka calcium tse nang le CEV ≤ 0.38%.
Thepa ea Mekaniki (Mocheso oa Kamore - PSL2):
| Thepa | API 5L X70 PSL2 |
| Matla a Tekanyo (metsotso) | 485 MPa (70,300 psi) |
| Matla a Tekanyo (max) | 605 MPa (87,800 psi) |
| Matla a ho Tenyetseha (metsotso) | 570 MPa (82,700 psi) |
| Matla a ho Tenyetseha (max) | 760 MPa (110,200 psi) |
| Karolelano ea Tlhahiso (max) | 0.93 |
| Ho lelefatsa (metsotso) | 18% (bakeng sa gauge ea 50mm) |
| Bothata (boholo) | 90 HRB (e bolila: 85 HRB e tloaelehileng) |
| Matla a Tšusumetso (metsotso) | 27 J @ 0°C (e tloaelehileng: 100-200J) |
Papiso le X65 le X80:
| Sehlopha | Tekanyo ea MPa | MPa e tenyetsehang | Karolelano ea Tlhahiso | Tšebeliso e Tloaelehileng |
| X65 | 450 | 535 | ≤ 0.93 | Metsi a tebileng, a nang le kgatello e phahameng |
| X70 | 485 | 570 | ≤ 0.93 | Khatello e phahameng haholo, sebaka se selelele |
| X80 | 555 | 625 | ≤ 0.93 | Sebaka se selelele haholo, khatello e matla |
3. Ho Latela Maemo le Litekanyetso tsa Tekanyo
| Ntho | Tlhaloso |
| E tloaelehileng | API 5L PSL2 (X70 e fanoa feela e le PSL2 ka API 5L) |
| Mekhoa ea Tlhahiso | JCOE, UOE, poleiti e phutholohileng (sehokelo se le seng/se habeli) |
| Sebaka sa Bophara ba Kantle | 406mm – 1,600mm (16″ – 63″) |
| Botenya ba Lebota | JCOE/UOE: 6.0mm – 50.8mm; Poleiti e phutholohileng: 25mm – 70mm (ho fihlela ho 80mm ka mokhoa o ikhethileng) |
| Bolelele ba Nako | E tloaelehileng: 12m, 18m; E atolositsoe: ho fihlela ho 24m (UOE) |
| Qetello ea ho Qetela | Qetello e Beveled (BE) ka API 5L (bevel ea 30°, sefahleho sa motso sa 1.6mm) |
| Qetello ea Bokaholimo | Bare, 3LPE, 3LPP, FBE (ho hlokahala sekwahelo bakeng sa boholo ba liphaephe tsa X70) |
| Mamello | OD: ± 0.5% kapa ± 3.2mm; Boima: -0% / + 15%; Bolelele: + 50mm / -0mm |
| Ho ba le Ovality (UOE) | ≤ 0.2% bakeng sa lewatle, ≤ 0.3% bakeng sa lewatle |
4. Litekanyo le Litlhaloso tse Fumanehang – Pipe ea Tšepe ea API 5L X70 LSAW (Boholo bo Tloaelehileng bo Khethiloeng)
| OD (mm) | Dikgetho tsa WT (mm) | Tshebetso | Boima bo ka bang teng (kg/m2) | Bolelele bo Tloaelehileng | Tšebeliso e Tloaelehileng |
| 406 | 8.0, 10.0, 12.5, 14.0, 16.0 | JCOE/UOE | 78.5 – 153.9 | 12m / 18m | Mahlakore a khase |
| 508 | 10.0, 12.5, 14.0, 16.0, 19.0, 22.0 | UOE | 122.8 – 263.8 | 12m / 18m / 24m | Mohala oa kutu |
| 610 | 12.5, 14.0, 16.0, 19.0, 22.0, 25.4 | UOE | 184.2 – 366.2 | 12m / 18m / 24m | Kutu e kholo |
| 711 | 14.0, 16.0, 19.0, 22.0, 25.4, 28.0 | UOE | 240.7 – 471.7 | 12m / 18m | Lebelo la naheng |
| 813 | 16.0, 19.0, 22.0, 25.4, 30.0, 32.0 | JCOE/UOE | 314.4 – 616.2 | 12m / 18m | Khase e nang le molumo o phahameng |
| 914 | 19.0, 22.0, 25.4, 30.0, 35.0, 38.0 | JCOE/UOE | 419.5 – 820.9 | 12m / 18m | Ho romela kantle ho naha kantle ho naha |
| 1,016 | 22.0, 25.4, 30.0, 35.0, 40.0, 45.0 | JCOE/E phutholohileng | 539.2 – 1,078.2 | 12m | Metsi a tebileng |
| 1,220 | 25.4, 30.0, 35.0, 40.0, 45.0, 50.0 | E phutholohile (e le 'ngoe) | 748.4 – 1,450.5 | 12m | Sebaka se selelele |
| 1,422 | 30.0, 35.0, 40.0, 45.0, 50.0, 55.0 | E phutholohile (e le 'ngoe) | 1,030 – 1,856 | 12m | Khatello e phahameng haholo |
Liphaephe tsa X70 hoo e ka bang kamehla ke tsa PSL2 tse nang le teko ea ts'usumetso ea Charpy. Lebota le boima la X70 (≥ 30mm) le hloka PWHT bakeng sa ts'ebeletso e bolila. Liphaephe tsohle tsa X70 li hloka 100% UT e nang le TOFD le DWTT bakeng sa taolo ea ho robeha.
5. Maemo le Likereiti tse Tloaelehileng – Phaephe ea Mohala o Matla a Phahameng oa LSAW
| E tloaelehileng | Likereiti tsa Tšepe | Tšebeliso e Tloaelehileng | Mokhoa oa ho Theha |
| API 5L PSL2 | X70 (L485), X80 (L555) | Khase e tsamaeang sebaka se selelele | UOE/JCOE |
| ISO 3183 | L485, L555 | Merero ea machaba | UOE |
| DNV-OS-F101 | L485, L555 | Liphaephe tsa ka tlas'a leoatle | UOE |
| CSA Z245.1 | Sehlopha sa 483 (X70) | Liphaephe tsa Canada | UOE |
| GOST R 52079 | K60 (e lekanang le X70) | Liphaephe tsa Russia | JCOE |
| NORSOK M-120 | X70 | Liphaephe tsa sethala sa kantle ho naha | UOE |
Kakaretso ea tšebeliso:Mehala ea li-trunk tsa khase tse nang le khatello e phahameng haholo ea sebaka se selelele, liphaephe tse tšelang naha tse fetang 1,000 km, ho romelloa ha khase metsing a tebileng kantle ho naha, tšebeletso ea bolila, liphaephe tsa arctic, liphaephe tsa CO₂.
6. Mekhoa ea Tlhahiso – LSAW (UOE / JCOE / Poleiti e Mehelehileng) bakeng sa Phaephe ea Tšepe ea X70
X70 e hloka lipoleiti tsa TMCP tse nang le pholiso e potlakileng, ho kenya mocheso o tlase haholo nakong ea ho tjheseletsa SAW (≤ 2.2 kJ/mm), le taolo e tiileng ea mocheso oa interpass (≤ 150°C). UOE e khethoa ho feta JCOE bakeng sa X70 ka lebaka la taolo e betere ea litekanyo.
Ts'ebetso ea UOE (508–1,220mm OD, Boima ba 6.0–40mm) – E khothaletsoa bakeng sa X70:
● Ho sila ka bohale ba poleiti (J-bevel, ho nepahala ha ± 0.3mm)
● Ho tobetsa ka U (matla a 4000t)
● O-press (matla a 6000t)
● Katoloso ea mechine (likarolo tse 72, keketseho ea OD ea 1.0-1.2%)
● SAW ea ka Hare: ho kenya mocheso ≤ 2.2 kJ/mm, interpass ≤ 150°C
● Ho ntsha mokokotlo (ka mechine, eseng mocheso)
● SAW ea Kantle: ho fetisa ka bongata, ho kenya mocheso ≤ 2.2 kJ/mm, sekhahla sa ho pholisa se hlokometsoe
● Tlhahlobo ea ho qetela ea litekanyo: ovality ≤ 0.15-0.20%
Ts'ebetso ea JCOE (406–1,422mm OD, Boima ba 6.0–50.8mm):
● Ho theha mohato ka mohato ka tonnage e tlase
● E loketse X70 e lebōpong la leoatle moo ovality ≤ 0.3% e amohelehang
● Litaolo tse tšoanang tsa ho tjheseletsa joaloka UOE
Poleiti e Menoang (Seam se le Seng) bakeng sa Lebota le Boima X70 (600–1,600mm OD, Boima ba 25–70mm):
● Ho kobeha ha meqolo e 4 ka tekanyo ea ho potoloha ha ts'ebetso
● SAW ea ho fetisa ka makhetlo a mangata (bonyane makhetlo a 4 bakeng sa WT ea 40mm)
● PWHT e tlamang bakeng sa botenya ba lebota ≥ 25mm bakeng sa tšebeletso e bolila
● E sebelisoa bakeng sa CO₂ e nang le khatello e phahameng le ente ea metsi
Kalafo ea Mocheso Kamora ho Welded (PWHT):Bakeng sa tšebeletso ea bolila ea X70, PWHT e sebelisoa bakeng sa botenya bohle ba mabota ≥ 20mm (moreki hangata o totobatsa botenya bohle). Mocheso oa ho kolobisa 570-590°C (o ka tlase ho X65 ho qoba ho chesa ho feta tekano). Nako ea ho tšoara ke hora e le 'ngoe ka 25mm. Sekhahla sa ho pholisa ≤ 100°C ka hora. Bothata kamora PWHT: ≤ 85 HRB.
Teko ea Taolo ea ho Robeha ha Maqeba bakeng sa X70:
● Charpy V-Notch ho -20°C, -46°C, kapa -60°C (e tloaelehileng: 100-200J)
● DWTT (Teko ea ho lahla boima) ho -20°C kapa mocheso oa teko: sebaka sa ho kuta ≥ 85% bakeng sa 'mele oa phaephe, ≥ 70% bakeng sa ho tjheseletsa
● CTOD (Sebaka sa ho Bula sa Maqeba a Mapetso) bakeng sa liphaephe tse nyolohang lebōpong la leoatle (≥ 0.25mm ho -20°C)
7. Mekhoa ea Taolo ea Boleng le Liteko bakeng sa Pipe ea Tšepe ea API 5L X70 LSAW
| Sethaleng | Mokhoa oa Tlhahlobo | Morero |
| Poleiti | Tlhahlobo ea Lik'hemik'hale (OES) | Netefatsa meeli ea X70 (tlase C, CEV ≤ 0.43) |
| Poleiti | Ultrasonic (tlhahlobo ea lamination ea 100%) | Lemoha li-lamination |
| Poleiti | Ho tsikinyeha (L+T) + CVN ho -20°C | Thepa ea mechini, ho tiea |
| Poleiti | Boholo ba lijo-thollo (ASTM E112) | Lithollo tse ntle (ASTM 11 kapa tse ntle) |
| Nakong ea ho theha | Tlhokomelo e tsoelang pele ea litekanyo | OD, ovality, ho otlolla moeli |
| Sehokelo sa ho weld | UT e iketsang ka 100% e nang le TOFD | Lemoha mefokolo eohle ea ho tjheseletsa |
| Sehokelo sa ho weld | RT (10-100% joalo ka ha ho boletsoe) | Netefatso ea boleng ba ho weld |
| Sehokelo sa ho weld | MPI (menoana ea maoto/HAZ) | Mapetso a holim'a metsi |
| Sehokelo sa ho weld | Tsela ea ho tsamaea ka thata (BM, HAZ, WM) | Tšebeletso e bolila (≤ 85 HRB) |
| Phaephe e felileng | Teko ea Hydrostatic (90-100% SMYS) | Botšepehi ba khatello |
| Phaephe e felileng | Charpy V-Notch mochesong o boletsoeng (bonyane 27J) | Ho tiea ha mocheso o tlase |
| Phaephe e felileng | DWTT ka mocheso o itseng (≥ 85% SA) | Ho ata ha ho robeha |
| Phaephe e felileng | Kobeho e Tataisitsoeng / Ho Batalatsa | Bokgoni ba ho sebetsa |
| Phaephe e felileng | CTOD (bakeng sa mose ho maoatle) | Ho tiea ha ho robeha |
| Phaephe e felileng | Pono le ho tšoaea ka nomoro ea mocheso | Ho sala morao |
E tlamang bakeng sa X70 PSL2:
● 100% UT ea seam ea weld (e ke ke ea ba letheba)
● Teko ea metsi a sa fetoheng
● Tšusumetso ea Charpy (bonyane lisete tse 3)
● Bakeng sa tšebeletso e bolila: HIC, SSC, PWHT, boima ≤ 85 HRB
Bakeng sa mose ho maoatle: Teko ea CTOD, ovality ≤ 0.2%
8. Likopo tsa mantlha - Pipe ea tšepe ea API 5L X70 LSAW
●Methapo ea likutu tsa khase tse tsamaeang sebaka se selelele ka khatello e phahameng haholo– Dikgatello tse sebetsang ho fihlela ho 20 MPa (2,900 psi), bolelele ba diphaephe bo fetang 1,000 km
● Liphaephe tse kholo tse tšelang naha– OD 1,016-1,422mm, e tsamaisang khase ea tlhaho e ngata
● Liphaephe tsa ho romela khase kantle ho naha metsing a tebileng– Botebo ba metsi ho fihlela ho 3,000m, bo hlokang ho hanyetsa ho putlama ho hoholo le ho otloloha ho tiileng
●Phetisetso ea khase ea tšebeletso ea bolila– Masimo a nang le H₂S (PSL2 e nang le HIC/SSC, PWHT, CEV e tlase)
● Liphaephe tsa CO₂ tse nang le khatello e phahameng bakeng sa CCS- Merero ea ho hapa le ho boloka khabone e hlokang matla a phahameng le ho tiea mochesong o tlase
● Liphaephe tsa khase tsa Arctic– Libaka tse nang le serame se sa feleng tse hlokang ho angoa ke Charpy ho -60°C le taolo ea DWTT
● Merero ea katoloso ea liphaephe– Moralo o thehiloeng holim'a khatello bakeng sa libaka tsa litšisinyeho tsa lefatše kapa libaka tse nang le serame
● Liphaephe tsa sebaka sa lithaba– Bokgoni bo phahameng ba ho hula ka nako e telele (X70 ka karolelano e itseng ya chai)
9. Pakete le Thomello – Pipe ea Tšepe ea API 5L X70 LSAW
Ka lebaka la boleng bo phahameng ba liphaephe tsa X70 (hangata theko ea X52 e ka ba makhetlo a 2-3), Womic e sebelisa liphutheloana tse ntlafalitsoeng:
● Liphaephe tse arohaneng (ha ho na ho kopanngoa, ho qoba tšenyo ea ho roala)
● Sekoahelo sa lehong se boima se nang le rabara e tšehelitsoeng ka lehlakoreng le leng le le leng (metsotso e 4 ka phaephe ea 12m)
● Likhaba tsa tšepe tse nang le li-gasket tsa rabara le mekotla ea VCI kahare
● Bakeng sa liphaephe tse koahetsoeng: phutheloana ea foam + lakane ea polasetiki + lebokose le eketsehileng la lehong bakeng sa thepa ea likepe
● Liphaephe tsohle li ngotsoe ka li-tag tsa RFID bakeng sa ho latelwa ka botlalo
● Thomello ka likepe tse senyehileng tse nang le merero e khethehileng ea ho boloka liphaephe
● Litokomane li kenyelletsa litifikeiti tsa EN 10204 Type 3.2 bakeng sa mocheso o mong le o mong
10. Melemo le Lipotso Tse Botsoang Khafetsa ka Tšepe ea Womic - Pipe ea Tšepe ea API 5L X70 LSAW
Hobaneng Womic Steel e le ea X70 LSAW?
● Ts'ebetso ea UOE e fana ka ±0.15% OD roundness - ea bohlokoa bakeng sa khanyetso e phahameng ea ho putlama ha X70
● Lipoleiti tsa TMCP tse tsoetseng pele tse nang le CEV ≤ 0.40% (e tloaelehileng 0.35-0.38%) bakeng sa ho tjheseletsa hantle
● Tšusumetso e tlase mochesong ho fihlela ho -60°C (CTOD ea fumaneha)
● Tšebeletso e nang le setifikeiti sa bolila (HIC, SSC) e nang le setofo sa PWHT se bolelele ba limithara tse 12
● Tumello ea API 5L Monogram + DNV bakeng sa mose ho maoatle
● Liphaephe tsa X70 tse fetang 800 km li fanoe ntle le ho hloleha ho hang ha li ntse li sebetsa
● Ho latela ka botlalo ka ho latela RFID
Lipotso Tse Botsoang Khafetsa:
P: Ke hobane'ng ha u khetha X70 ho feta X65 bakeng sa phaephe ea khase e tsamaeang sebaka se selelele?
K: X70 e fana ka matla a ho hlahisa a phahameng ka 8% (485 vs 450 MPa), e leng se lumellang phokotso ea botenya ba lebota ba hoo e ka bang 10-12% bakeng sa khatello e tšoanang. Bakeng sa phaephe ea 1,000 km, sena se ka boloka lithane tse 50,000-80,000 tsa tšepe, e leng se fokotsang haholo litšenyehelo tsa thepa le khabone. Leha ho le joalo, X70 e hloka lipoleiti tsa TMCP tse turang haholo, taolo e thata ea ho tjheseletsa, le litšenyehelo tse phahameng tsa tlhahlobo. Sebaka sa ho qhaqha hangata se ka ba 500-800 km. Bakeng sa liphaephe tse khutšoane, X65 e theko e tlaase haholoanyane.
P: Na X70 e thata ho e tjheseletsa tshimong ho feta X65?
K: E. X70 e na le tekanyo e phahameng ea khabone (CEV 0.38-0.43% khahlano le X65 0.35-0.40%) 'me e bonolo ho e sebelisa ha haeterojene e petsoha. Ho tjheseletsa masimo ho hloka ho futhumatsoa pele ho nako (hangata 100-150°C bakeng sa X70 khahlano le 75-100°C bakeng sa X65) le taolo e tiileng ea mocheso o kenang le mocheso oa interpass. Leha ho le joalo, ka mekhoa ea ho tjheseletsa e tšoanelehang (WPS) le ba tjheseletsang ba nang le boiphihlelo, X70 e ka tjheselletsoa ka mokhoa o tšepahalang. Womic e fana ka likhothaletso tse ka sebelisoang tsa ho tjheseletsa 'me e ka fana ka li-coupon tse tšoanelehang.
P: Na X70 e ka sebelisoa bakeng sa tšebeletso ea sour (H₂S)?
K: E, empa ho hlokahala mehato e meng: CEV ≤ 0.38% (ka ho khetheha ≤ 0.36%), PWHT bakeng sa botenya bohle ba mabota, ho thatafala ≤ 85 HRB, HIC le teko ea SSC. Womic e fane ka tšebeletso ea sour X70 ho merero e nang le H₂S e fihlang ho 50 ppm. Hlokomela hore X70 e na le kutloelo-bohloko ho H₂S ho feta X65 kapa X60, kahoo basebetsi ba bangata ba ntse ba khetha X65 bakeng sa libaka tse nang le H₂S e phahameng.
P: Botenya ba lebota bo boholo ka ho fetisisa bakeng sa phaephe ea X70 LSAW ke bofe?
A: JCOE/UOE max 50.8mm, poleiti e phuthiloeng e le 'ngoe e fihlang ho 70mm. Bakeng sa botenya ba lebota > 40mm, lisebelisoa tsa UOE lia fokotseha, 'me poleiti e phuthiloeng ea khethoa. Haufinyane re fane ka X70 914mm OD × 60mm WT bakeng sa phaephe ea CO₂ e nang le khatello e phahameng (projeke ea CCS).
P: Ke teko efe ea ho thatafala ha ho robeha e hlokahalang bakeng sa X70?
A: API 5L e hloka teko ea Charpy V-Notch (metsotso e 27J) empa merero e mengata e totobatsa boleng bo holimo (mohlala, 100J ho -20°C). DWTT ea hlokahala bakeng sa taolo ea ho ata ha ho robeha (sebaka sa ho kuta ≥ 85% mochesong oa teko). Bakeng sa lipeipi tsa leoatleng kapa tsa arctic, tlhahlobo ea CTOD (≥ 0.25mm ho -20°C kapa -46°C) hangata e eketsoa. Womic e etsa liteko tsena tsohle ka tlung kapa ka lilaboratori tsa motho oa boraro tse ngolisitsoeng.
P: Nako e tloaelehileng ea ho etella pele phaephe ea X70 LSAW ke efe?
K: X70 e hloka lipoleiti tsa TMCP tse nang le linako tse telele tsa ho etella pele (libeke tse 8-12 ho tloha fekthering). Nako eohle ea ho etella pele: Matsatsi a 70-100 ho tloha odara ho isa thomellong ea FOB. Liodara tse potlakileng (matsatsi a 45-60) lia khoneha haeba lipoleiti li le teng setokong.
P: Na X70 e hloka PWHT bakeng sa tshebeletso e seng kotsi?
A: API 5L ha e laele PWHT bakeng sa X70 ka tlase ho 50.8mm WT. Leha ho le jwalo, basebetsi ba bangata ba sebedisa PWHT bakeng sa diphaephe tsa X70 ho sa tsotelehe botenya ba lebota ho fokotsa kgatello e setseng le ho netefatsa ho tiya ha HAZ. Womic e ka fana ka PWHT ha e kopuwa (ditjeo tse ding le nako ya pele).
Tšupiso ea Morero - Mohala oa Thupa ea Khase ea Tlhaho ea Bohareng ba Asia Bohareng
Naha:Moeli oa Uzbekistan – Tajikistan – Chaena (karolo ea Phaephe ea Khase ea Asia Bohareng le Chaena)
Maemo le Kereiti:API 5L X70 PSL2 (ha e na bolila, empa e na le litlhoko tsa mocheso o tlase)
Litekanyo le Bongata:
● OD 1,219mm (48″) × Boima 19.0mm – 85,000 metres (hoo e ka bang lithane tse 48,500) e entsoeng ka mokhoa oa UOE
● OD 1,219mm (48″) × Boima 22.2mm – limithara tse 15,000 (hoo e ka bang lithane tse 9,500) e entsoeng ka mokhoa oa UOE (lebota le letenya bakeng sa ho tšela lithaba le libaka tse nang le liphoso)
● OD 1,016mm (40″) × Boima 17.5mm – 40,000 metres (hoo e ka bang lithane tse 17,800) e entsoeng ka mokhoa oa JCOE (mohala oa lekala)
Kakaretso:Limithara tse 140,000 (140 km), hoo e ka bang lithane tse 75,800
Litlhaloso:Seaparo sa kantle sa 3LPE (kakaretso ea 3.0mm), lipheletso tse betlotsoeng 30°/1.6mm, teko ea hydrotest ho 19.5 MPa (khatello ea moralo 15.0 MPa). Tšusumetso ea Charpy e tlamang ho -20°C (ka tlase ho 80J, e fihletsoe ho 150-220J) le ho -46°C (ka tlase ho 50J, e fihletsoe ho 100-160J). DWTT ho -20°C: sebaka sa ho kuta ≥ 85% bakeng sa 'mele oa phaephe, ≥ 70% bakeng sa ho weld. UT ea 'mele o felletseng (100% ea bophahamo ba phaephe, eseng seam feela). Tlhahlobo ea motho oa boraro ke TÜV Rheinland nakong eohle ea tlhahiso. DNV e bone liteko tsa hydrostatic ho 10% ea tlhahiso.
Kopo:Katoloso ea Phaephe ea Khase ea Asia Bohareng-China (Mola oa D), e tsamaisang khase ea tlhaho ho tloha masimong a khase Uzbekistan ho pholletsa le Tajikistan ho ea moeling oa Chaena. Bolelele bohle ba mola ona: 140 km. Phaephe e haola lithaba tsa lithaba tsa Pamir, ho kenyeletsoa libaka tse 'ne tse sebetsang tsa ho thothomela ha lefatše, libaka tse tharo tse kholo tsa ho tšela linoka, le phetoho ea bophahamo ho tloha ho 400m ho isa ho 2,800m.
Liphephetso tsa Tekheniki le Litharollo:
● Phapang e feteletseng ea bophahamo le mocheso– Bophahamo ba phaephe bo tloha ho 400m ho isa ho 2,800m, ka mocheso o pakeng tsa -35°C mariha ho isa ho +45°C lehlabula. Liphaephe tsa 48" X70 li ne li hloka ho tiea ha mocheso o tlase ho fihlela ho -46°C (Charpy min 50J). Lipoleiti tsa TMCP tse khethiloeng ke Womic tse nang le nickel e ekelitsoeng (Ni ≤ 0.50%) ho fihlela tšusumetso ea Charpy ho -46°C ka karolelano ea 120J. Sebaka sa ho kuta sa DWTT ho -20°C: 92-96% bakeng sa 'mele oa phaephe, 82-88% bakeng sa ho weld. Liteko tsohle li fetisitsoe.
● Ho tšela liphoso tsa litšisinyeho tsa lefatše – moralo o thehiloeng holim'a khatello– Likarolo tse nne tsa liphaephe li tšela liphoso tse sebetsang tse ka bang le ho falla ha mobu ho fihlang ho 1.5m. Phaephe e entsoe ka ho sebelisa moralo o thehiloeng khatellong (eseng khatellong). Sena se hloka liphaephe tsa X70 tse nang le karolelano e boletsoeng ea chai ≤ 0.85 (API 5L PSL2 e lumella 0.93) le ho lelefatsa ka mokhoa o ts'oanang ≥ 15%. Womic e hlahisitse X70 e khethehileng ea "high-strain" e nang le karolelano ea chai 0.80-0.84 le ho lelefatsa ka mokhoa o ts'oanang 16-18%. Re boetse re fane ka liteko tsa ho thaepa ka karolo e felletseng (eseng feela ho lelefatsa) ho netefatsa bokhoni ba khatello.
● Sebaka se lithaba se nang le litlhoko tse feteletseng tsa ho kobeha– Phaephe ena e kenyelletsa phaephe ya 48" ya bolelele ba 22 km e kentsweng matsoapong a di-degree tse 20-30. Ho kobeha ha diphaephe tsa X70 ka serame ho lekanyeditswe (API 5L e dumella 1.5° ka 12m). Diphaephe tse fanweng ke Womic tse nang le manonyeletso a bolelele bo eketsehileng ba 18m bakeng sa dikarolo tse otlolohileng le manonyeletso a 12m bakeng sa dikarolo tse kobehileng. Re boetse ra etsa teko ya ho kobeha disampoleng tse feletseng: diphaephe tsa 48" × 19.0mm di ne di kobehile ka serame ho fihlela ho 2.0° ka 12m ntle le ho petsoha (e netefaditswe ke UT le MT kamora ho kobeha).
● Litšelo tsa noka tse hlokang botenya ba lebota le boima– Litšelo tse tharo tsa noka (linoka tse phallang tsa Oxus) li ne li hloka 22.2mm WT ho fapana le 19.0mm bakeng sa ho putlama le ho kobeha ho eketsehileng nakong ea ho kenngoa ha pullback. Womic e sebelisitse mokhoa oa UOE bakeng sa liphaephe tsena ho fihlela ovality ≤ 0.2% (0.12-0.18%) ea 'nete, ho netefatsa hore ho feta ho boreleli ka har'a mokoti. Liphaephe tse teteaneng tsa lebota le tsona li ne li hloka ho kenngoa ha mocheso o tlase nakong ea ho tjheseletsa (≤ 2.0 kJ/mm) ho boloka HAZ e tiile.
● Tsamaiso ea thepa ea maeto a malelele ho pholletsa le linaha tse tharo– Liphaephe li entsoe fekthering ea Womic ea Tianjin, li rometsoe ka terene ho ea Almaty (Kazakhstan), ebe li fetisetsoa literaka bakeng sa ho isoa libakeng tsa kaho Uzbekistan le Tajikistan. Sebaka sohle sa lipalangoang: ho feta 5,000 km. Womic e sebelisitse likoloi tse khethehileng tsa terene tse nang le litšehetso tse nang le masela le lebanta la tšepe. Phaephe ka 'ngoe e ne e hlahlojoa ka RFID sebakeng se seng le se seng sa phetisetso. Liphaephe tse se nang letho li ile tsa senyeha nakong ea phetisetso ho sa tsotellehe ho tšela meeli e 3 le ho fetisetsa thepa ka har'a liphaephe tse 6.
● Litlhoko tse feteletseng tsa ho koahela bakeng sa ho pepesehela mahlaseli a kotsi a UV sebakeng se phahameng– Ha e le bophahamong ba limithara tse 2,800, mahlaseli a UV a phahame ka 40% ho feta a leoatleng. 3LPE e tloaelehileng e ka senyeha ha e le boemong bo phahameng ba UV. Womic e sebelisitse 3LPE ka lera le holimo le tsitsitseng la UV (khabone e ntšo 2.5% khahlano le 2.0%). Sekoahelo se fetile teko ea ho tjhesa ha UV e potlakileng (lihora tse 1,000 tsa QUV, ho boloka khanya ≥ 80%). Matla a peel a ile a sala a le > 200 N/cm kamora ho pepesehela UV.
● Sephetho:Katoloso ea phaephe ea 140 km e phethiloe 'me ea kenngoa tšebetsong kotara ea bobeli ea 2025. Lithane tsohle tse 75,800 tsa liphaephe tsa X70 PSL2 li fetile tlhahlobo ea TÜV ntle le ho haneloa ke letho. Likarolo tsa moralo tse thehiloeng khatellong li pholohile liketsahalo tse peli tsa litšisinyeho tsa lefatše (boholo ba 4.2 le 5.1) nakong ea likhoeli tse 18 tsa pele tsa ts'ebetso ntle le matšoao a ho thella kapa ho lutla. Moreki (k'hamphani ea naha ea khase ea Uzbekistan) o fane ka thoriso ea semmuso ho Womic Steel bakeng sa "taolo e ikhethang ea boleng le tšehetso ea tekheniki." Hona joale Womic ke mofani ea khethiloeng bakeng sa likarolo tsa nakong e tlang tsa Line D.
Ikopanye le rona:
Webosaete: www.womicsteel.com
Imeile: sales@womicsteel.com
Mohala / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Molekane oa hau ea tšepahalang bakeng sa liphaephe tsa API 5L X70 LSAW bakeng sa mela ea lithupa tsa khase tse nang le khatello e phahameng haholo ea maeto a malelele, liphaephe tsa naha e tšelang naha, lits'ebetso tsa arctic, le libaka tse nang le khatello e phahameng ea litšisinyeho lefatšeng ka bophara.
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