1. Tšepe ea Womic: Bokhoni ba Tlhahiso le Matla a Khamphani
Womic Steel Group e sebetsa mela e mengata ea tlhahiso ea LSAW e akaretsang mekhoa e meraro ea mantlha ea ho theha ho fihlela litlhoko tse fapaneng tsa projeke:
● 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. Bokgoni bo phahameng, ho teteana hantle.
●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. Ho nepahala ho hoholo ka tekanyo, ho khethoa bakeng sa tšebeletso ea metsi a tebileng le a bolila.
●Poleiti e Menoang (Seam e le 'Ngoe):Bakeng sa bophara ba 600mm – 1,600mm (24″–63″), botenya ba lebota ho tloha ho 25mm ho isa ho 60mm. Poleiti e le 'ngoe e phuthoa ka har'a silindara e nang le weld e le 'ngoe e telele. E loketse botenya ba lebota bo boima bo fetang bokhoni ba JCOE/UOE.
●Poleiti e Menoang (Seam e Habeli):Bakeng sa botenya ba lebota > 50.8mm ho fihlela ho 80mm, ho sebediswa dipoleiti tse pedi tse tjheselleditsweng ka bolelele. Hangata di sebediswa bakeng sa diphaephe tse ngata tsa oli tse nang le kgatello e phahameng.
Bokgoni bohle ba LSAW bo feta ditone tse 300,000 ka selemo. Womic Steel e na le API 5L Monogram, ISO 9001, CE PED, mme e hlahlojwa kgafetsa ke ABS, DNV, TÜV, le BV. Rekoto ya lefatshe ka bophara dinaheng tse fetang 80.
Ho tenyetseha ha Tlhahiso:
●JCOE: 406–1,422mm OD × 6.0–50.8mm Boima × ≤ 18m
●UOE: 508–1,220mm OD × 6.0–40.0mm Boima × ≤ 24m (katoloso ea mechini e ntlafatsa ho chitja)
●Poleiti e phutholohileng (sehokelo se le seng): 600–1,600mm OD × 25–60mm Boima × ≤ 12m (moeli oa boima)
●Poleiti e phutholohileng (sehokelo se habeli): 1,000–2,000mm OD × 25–80mm Boima × ≤ 12m
Liphaephe tsohle li ka fanoa ka PWHT (kalafo ea mocheso ea kamora ho weld) bakeng sa tšebeletso ea lebota le teteaneng kapa bolila.
2. API 5L X42: Sebopeho sa thepa le litšobotsi tsa ts'ebetso
API 5L X42 ke mofuta oa phaephe ea mohala o matla a mahareng o fanang ka matla a bonyane a tlhahiso ea 290 MPa (42,100 psi) le matla a bonyane a ho thaepa a 415 MPa (60,200 psi). E tlatsa sekheo pakeng tsa GR.B (245 MPa) le X52 (360 MPa), hangata e hlalosoang bakeng sa litsamaiso tsa pokello ea khase moo litlhoko tsa khatello li leng maemong a itekanetseng empa li phahame ho feta mela e tloaelehileng ea kabo.
Sebopeho sa Lik'hemik'hale (Tlhahlobo ea Lesela, % e phahameng ka boima):
| Karolo | API 5L X42 PSL1 (max %) | API 5L X42 PSL2 (max %) |
| C | 0.26 | 0.22 |
| Mn | 1.30 | 1.30 |
| P | 0.030 | 0.025 |
| S | 0.030 | 0.015 |
| Si | 0.45 | 0.45 |
| Nb+V+Ti | 0.05 | 0.05 (joalokaha ho lumellanoe) |
PSL2 e hloka tekanyo ea khabone (CEV) ≤ 0.43% bakeng sa ho tjheseletsa ho ntlafetseng maemong a tšimo.
Thepa ea Mekaniki (Mocheso oa Kamore):
| Thepa | API 5L X42 PSL1 | API 5L X42 PSL2 |
| Matla a Tekanyo (metsotso) | 290 MPa (42,100 psi) | 290–495 MPa |
| Matla a ho Tenyetseha (metsotso) | 415 MPa (60,200 psi) | 415–655 MPa |
| Ho lelefatsa (metsotso) | 23% (bakeng sa gauge ea 50mm) | 22% |
| Bothata (boholo) | Ha ea hlalosoa | 90 HRB |
| Matla a Tšusumetso (metsotso) | Ha ho hlokahale | 27 J @ 0°C (boikhethelo -20°C) |
Papiso le GR.B le X52:
| Sehlopha | Tekanyo ea MPa | Tšebeliso e Tloaelehileng |
| GR.B | 245 | Kabo e tloaelehileng ea metsi/khase |
| X42 | 290 | Pokello ea khase ea khatello e mahareng, ente ea metsi |
| X52 | 360 | Methapo ea kutu e nang le khatello e phahameng |
3. Ho Latela Maemo le Litekanyetso tsa Tekanyo
| Ntho | Tlhaloso |
| E tloaelehileng | API 5L PSL1 / PSL2 (hape le ISO 3183 L290) |
| Mekhoa ea Tlhahiso | JCOE, UOE, poleiti e phutholohileng (sehokelo se le seng/se habeli) |
| Sebaka sa Bophara ba Kantle | 219mm – 1,600mm (8″ – 63″) |
| Botenya ba Lebota | JCOE/UOE: 5.0mm – 50.8mm; Poleiti e phutholohileng: 25mm – 60mm (ho fihlela ho 80mm ka mokhoa o ikhethileng) |
| Bolelele ba Nako | E tloaelehileng: 6m, 12m, 18m; E atolositsoeng: ho fihlela ho 24m (JCOE/UOE) kapa 12m (lebota le boima la poleiti e phutholohileng) |
| Qetello ea ho Qetela | Qetello e se nang letho (PE), Qetello e Beveled (BE) ka API 5L |
| Qetello ea Bokaholimo | E hlobotse, e tlotsitsoe ka oli, 3LPE, FBE, Epoxy ea mashala, Epoxy ea metsi |
| Mamello | OD: ±0.5% kapa ±3.2mm (ho sa tsotelehe hore na e ka tlase ho eng); Boima: -0% / +15%; Bolelele: +50mm / -0mm |
4. Litekanyo le Litlhaloso tse Fumanehang – Pipe ea Tšepe ea API 5L X42 LSAW (Boholo bo Tloaelehileng bo Khethiloeng)
| OD (mm) | Dikgetho tsa WT (mm) | Tshebetso | Boima bo ka bang teng (kg/m2) | Bolelele bo Tloaelehileng |
| 273 | 6.4, 8.0, 10.0, 12.5 | JCOE | 42.1 – 80.1 | 12m |
| 324 | 6.4, 8.0, 10.0, 12.5, 14.0 | JCOE | 50.2 – 107.1 | 12m / 18m |
| 406 | 8.0, 10.0, 12.5, 14.0, 16.0 | JCOE/UOE | 78.5 – 153.9 | 12m / 18m |
| 508 | 8.0, 10.0, 12.5, 14.0, 16.0, 19.0 | UOE | 98.6 – 229.1 | 12m / 18m / 24m |
| 610 | 10.0, 12.5, 14.0, 16.0, 19.0, 22.0 | UOE | 148.0 – 319.1 | 12m / 18m / 24m |
| 711 | 10.0, 12.5, 14.0, 16.0, 19.0, 22.0, 25.4 | JCOE/UOE | 172.9 – 429.4 | 12m / 18m |
| 813 | 12.5, 14.0, 16.0, 19.0, 22.0, 25.4, 30.0 | JCOE | 246.7 – 579.8 | 12m / 18m |
| 914 | 14.0, 16.0, 19.0, 22.0, 25.4, 30.0, 35.0 | JCOE | 310.8 – 759.2 | 12m / 18m |
| 1,016 | 16.0, 19.0, 22.0, 25.4, 30.0, 35.0, 40.0 | JCOE/E phutholohileng | 394.6 – 963.9 | 12m |
| 1,220 | 19.0, 22.0, 25.4, 30.0, 35.0, 40.0, 45.0 | E phutholohile (sehokelo se le seng) | 563.0 – 1,304.2 | 12m |
| 1,422 | 25.4, 30.0, 35.0, 40.0, 45.0, 50.0 | E phutholohile (e le 'ngoe/e habeli) | 875.1 – 1,692.5 | 12m |
| 1,600 | 30.0, 40.0, 50.0, 60.0 | E phutholohile (sehokelo se habeli) | 1,162 – 2,280 | 10m / 12m |
Liphaephe tse boima tsa lebota (≥ 40mm) hangata li hloka PWHT ho fokotsa khatello e setseng le ho fihlela meeli ea ho thatafala bakeng sa ts'ebeletso e bolila.
5. Maemo a Tloaelehileng le Mekhahlelo – Phaephe ea Mohala ea LSAW le Phaephe ea Sebopeho
| E tloaelehileng | Likereiti tsa Tšepe | Tšebeliso e Tloaelehileng | Mokhoa oa ho Theha |
| API 5L PSL1/PSL2 | X42, X52, X60, X65, X70 | Phetiso ea oli/khase | JCOE/UOE/E phutholohileng |
| ASTM A53 | GR.B | Liphaephe tse nang le khatello e tlase | JCOE |
| ASTM A106 | GR.B/C | Mocheso o phahameng | JCOE/E phutholohileng |
| EN 10217-1 | S235JR, S275JR | Liphaephe tsa khatello | JCOE |
| EN 10219 | S355JRH, S355J2H | Likarolo tsa sebopeho | JCOE/E phutholohileng |
| DNV-OS-F101 | L290 (X42) | Liphaephe tsa ka tlas'a leoatle | UOE |
| BS 7191 | L290 (X42) | Meaho ea kantle ho naha | UOE/E phutholohile |
Kakaretso ea tšebeliso:Marangrang a ho bokella khase, mela e enteloang metsi, li-risers tsa leoatleng, liqubu tsa motheo oa borokho, liphaephe tsa lerōle, liphaephe tse boima tsa ho sebetsa maboteng libakeng tsa ho hloekisa.
6. Mekhoa ea Tlhahiso – LSAW (JCOE / UOE / Poleiti e Menoang) bakeng sa Phaephe ea Tšepe ea X42
Womic Steel e khetha mokhoa o loketseng ho latela bophara, botenya ba lebota, le litlhoko tsa thepa ea mechini.
Ts'ebetso ea JCOE (406–1,422mm OD, Boima ba 6.0–50.8mm):
● Ho sila ka poleiti (X kapa J bevel)
● Ho kobeha (ho kobeha) ha mathoko pele ho nako
● Ho etsa sebopeho sa J (ho tobetsa ka ho phunya)
● Ho bopa sebopeho sa C (letoto la die)
● Ho bopa sebopeho sa O (silindara ea ho qetela)
● Ho tjheseletsa lithapo (lithapo tse se nang letho tse pela moalo)
● SAW ea ka Hare (e le 'ngoe kapa e nang le terata e mengata)
● SAW ea Kantle (kamora ho cheka morao haeba ho hlokahala)
● Katoloso ea mechine (keketseho ea OD ea 1–1.5% bakeng sa ho chitja le ho imolla khatello ea maikutlo)
● E loketse boholo ba lits'ebetso tsa liphaephe tsa mohala, tekanyo e ntle ea litšenyehelo le boleng.
Ts'ebetso ea UOE (508–1,220mm OD, Boima ba 6.0–40mm):
● Ho tobetsa ka U ho etsa poleiti hore e be sebopeho sa U
● O-press e koala sebopeho sa cylindrical
● Katoloso (ea mechine) ho isa bophara ba ho qetela le ho chitja
● Ho tjheseletsa ho ts'oanang le JCOE empa ho na le phallo e phahameng
● E kgethwa bakeng sa liphaephe tsa metsi a tebileng le tšebeletso e bolila ka lebaka la ho chitja ho phahameng (± 0.2% OD) le khatello e tlase e setseng.
Poleiti e Menoang (Seam se le Seng) bakeng sa Lebota le Boima (600–1,600mm OD, Boima ba 25–60mm):
● Poleiti e le 'ngoe ea tšepe e phuthoa ka har'a silindara ho sebelisoa mochini o kobehang oa lirolo tse 3 kapa tse 4
● Sehokelo sa longitudinal se tjheselletswa ka SAW (se nang le diphase tse ngata, hangata se nang le mahlakore a mabedi)
● Ha ho katoloso ea mechine (ho potoloha ho finyelloa ka ho nepahala ha ho phutholoha)
● E loketse liphaephe tse teteaneng tsa lebota moo lisebelisoa tsa JCOE/UOE li lekanyelitsoeng
● Hangata ho hlokahala PWHT (ho imolla khatello ea maikutlo) ho fihlela litlhoko tsa ho thatafala bakeng sa tšebeletso e bolila.
Poleiti e Menoang (Seam e Habeli) bakeng sa Lebota le Boima Haholo / Bophara bo Boholo Haholo (1,000–2,000mm OD, Boima ba 25–80mm):
Lipoleiti tse peli li phuthoa ka halofo ea lisilindara 'me li kopanngoa hammoho le lithupa tse peli tse telele
Hangata e sebelisoa bakeng sa liphaephe tse nang le khatello e phahameng, li-penstock, le likamore tsa hamore tsa metsi tse bophara bo boholo.
Li-weld tsohle li hlahlobiloe ka 100% UT le RT.
Kalafo ea Mocheso Kamora ho Welded (PWHT):Bakeng sa botenya ba lebota > 32mm kapa bakeng sa tšebeletso e bolila (H₂S), Womic e fana ka kalafo e fokotsang khatello ea maikutlo ka ontong e ka tlase ho koloi kapa sebakeng seo ho sebelisoa ho futhumatsa ka induction. Ho thatafala ho laoloa ho ≤ 90 HRB (kapa ≤ 248 HV10).
7. Mekhoa ea Taolo ea Boleng le Liteko bakeng sa Pipe ea Tšepe ea API 5L X42 LSAW
| Sethaleng | Mokhoa oa Tlhahlobo | Morero | Mokhoa o Sebetsang |
| Poleiti | Tlhahlobo ea Lik'hemik'hale (OES) | Netefatsa meeli ea X42 | Kaofela |
| Poleiti | Ultrasonic (Tlhahlobo ea Lamination) | Lemoha mefokolo ea ka hare | Kaofela |
| Poleiti | Ho tenyetseha / ho kobeha | Netefatso ea mechini | Kaofela |
| Nakong ea ho theha | Tekanyo (bophara, ovality) | Netefatsa hore ho tšoana | Kaofela |
| Sehokelo sa ho weld | UT e Iketsang ka Bo eona ea 100% (kapa PAUT) | Lemoha khaello ea ho kopana, slag, le porosity | Kaofela |
| Sehokelo sa ho weld | RT (letheba kapa bolelele bo felletseng ho latela lintlha) | Netefatso ea boleng ba ho weld | Kaofela |
| Sehokelo sa ho weld | MPI (menoana ea maoto le HAZ) | Mapetso a holim'a metsi | Kaofela |
| Phaephe e felileng | Teko ea Hydrostatic (ka API 5L) | Botšepehi ba khatello | Kaofela |
| Phaephe e felileng | Charpy V-Notch (PSL2) | Ho tiea ha mocheso o tlase (27J @ 0°C) | PSL2 feela |
| Phaephe e felileng | Bothata (HRB/HV10) | Ho latela melao ea litšebeletso tse mpe | PSL2 / bolila |
| Phaephe e felileng | Kobeho e Tataisitsoeng / Ho Batalatsa | Bokgoni ba ho sebetsa | Kaofela |
| Phaephe e felileng | Pono le ho tšoaea | Boemo ba bokaholimo, ho latelwa ha bona | Kaofela |
Khetho bakeng sa tšebeletso ea bohlokoa:
● HIC ka NACE TM0284
● SSC ho latela NACE TM0177
● Tšusumetso e tlase mochesong ho -20°C, -40°C kapa -60°C
● DWTT (Teko ea ho lahla boima ba 'mele) bakeng sa taolo ea ho ata ha lesapo
'Mapa o felletseng oa ho thatafala ha karolo e tšekaletseng bakeng sa lebota le teteaneng
8. Likopo tsa mantlha - Pipe ea tšepe ea API 5L X42 LSAW
● Marangrang a ho bokella khase – ho bokella khase ea tlhaho ho tloha lithabeng tsa liliba ho ea lifemeng tsa ts'ebetso (khatello e fihlang ho 6 MPa)
● Methapo ea phallo ea oli e tala - lipalangoang tse hole ho tloha selibeng ho ea manifold
● Methapo ea ho kenya metsi – ho hlaphoheloa ha oli ea bobeli, metsi a khatello e phahameng (10–20 MPa)
● Li-caisson tsa riser tsa sethala sa kantle ho naha - sekoahelo se sireletsang bakeng sa li-riser sebakeng sa splash
● Liphaephe tsa lerōle – ho tsamaisoa ha tšepe, koporo e tiileng, le mesaletsa
● Ho bokellana ha marokho le koung – liqubu tsa liphaephe tse bophara bo boholo, tse boima tsa lebota bakeng sa metheo e tebileng
● Liphaephe tsa ts'ebetso ea indasteri - feme ea ho hloekisa le mela ea khatello e mahareng ea peterole
● Penstocks (poleiti e boima e phutholohileng leboteng) – lifeme tsa motlakase oa metsi
9. Pakete le Thomello – Pipe ea Tšepe ea API 5L GR.B LSAW
Sephutheloana:
● Bophara bo bonyenyane (≤ 24″): Liphutheloana tse nang le mahlakore a tšeletseng, tšepe e tlameletsoeng ka litšireletso tse ka thoko.
● Bophara bo boholo (> 24″): Liphaephe tse arohaneng, tse arotsoeng ka lepolanka la dunnage le li-pad tsa rabara.
● Likoahelo tsa ho qetela: Likoahelo tsa polasetiki kapa tsa tšepe tse boima (lipheletso tse betliloeng li sirelelitsoe).
● Tšireletso ea ho koahela: Bakeng sa liphaephe tse koahetsoeng ka 3LPE/FBE, lera ka leng le arotsoe ka masale a foam ho thibela ho khohlana nakong ea thepa ea leoatleng.
Mekhoa ea ho romella:
● Mekepe e robehileng ka boholo ba > lithane tse 500 kapa bophara bo boholo
● Lijana tsa 20ft/40ft bakeng sa bophara bo bonyenyane (tse kopantsoeng)
● Liraka tse bataletseng kapa lijana tse bulehileng bakeng sa bolelele bo bolelele (ho fihlela ho 24m)
● Lithomello tsohle li kenyelletsa litokomane tse felletseng: MTC (EN 10204 3.1 kapa 3.2), tlaleho ea teko ea metsi, litlaleho tsa UT/PAUT, setifikeiti sa ho koahela (haeba ho hlokahala), lethathamo la ho paka, invoice ea khoebo, COO.
10. Melemo le Lipotso Tse Botsoang Khafetsa ka Tšepe ea Womic - Pipe ea Tšepe ea API 5L X42 LSAW
Hobaneng Womic Steel e le ea X42 LSAW?
●Mekhoa e meraro e tlatsanang (JCOE, UOE, poleiti e phutholohileng) e akaretsang mefuta e mengata e fapaneng
●Bokgoni bo teteaneng ba lebota bo fihlang ho 60mm (seam se le seng) kapa 80mm (seam se habeli) bakeng sa ho enta metsi ka khatello e phahameng le ho kenya liphaephe tse ngata
●Setsi sa PWHT bakeng sa ho imolla khatello ea maikutlo maboteng a teteaneng le liphaephe tsa tšebeletso tse bolila
●Tlhahlobo ea API 5L Monogram + CE + ea motho oa boraro (SGS, BV, TÜV, DNV)
●Phetoho e potlakileng (ka tloaelo matsatsi a 30-50)
●Bolelele bo bolelele ho fihlela ho 24m bo fokotsa ho welds ha sebaka sa ho tjheseletsa ka 30–40%
Lipotso Tse Botsoang Khafetsa:
P: Ke lokela ho khetha UOE neng ho fapana le JCOE bakeng sa X42?
K: UOE e fana ka ho potoloha ho betere (± 0.2% khahlano le ± 0.5% bakeng sa JCOE) le khatello e tlase ea masala, e leng se etsang hore e ratoe bakeng sa lipeipi tsa leoatleng le tebileng (ka tlas'a leoatle) le tšebeletso e bolila moo botsitso bo boholo tlas'a khatello ea kantle bo leng bohlokoa. JCOE e na le litšenyehelo tse tlase bakeng sa merero e mengata ea leoatleng.
P: Na o ka etsa phaephe e boima ya lebota ya X42 e fetang 50mm?
K: E. Bakeng sa botenya ba lebota ho tloha ho 50mm ho isa ho 60mm, re sebelisa seam e le 'ngoe ea poleiti e phutholohileng e nang le PWHT. Bakeng sa seam e habeli ea bolelele ba 60–80mm. Tsena hangata li sebelisoa bakeng sa mela ea ente ea metsi ho 20–30 MPa kapa bakeng sa li-penstock tsa motlakase oa metsi.
P: Phapang ke efe pakeng tsa PSL1 le PSL2 bakeng sa X42?
A: PSL2 e na le meeli e thata ea C, P, S, tšusumetso ea Charpy e tlamang (27J @ 0°C), boima bo phahameng ka ho fetisisa ba 90 HRB, 'me e hloka NDT e eketsehileng. Bakeng sa mela ea pokello ea khase e ka bang le mocheso o tlase oa tikoloho kapa mesaletsa ea H₂S, PSL2 ea khothaletsoa.
P: Na le fana ka tšebeletso e bolila X42?
K: E. Re fana ka X42 PSL2 ka teko ea HIC (NACE TM0284) le SSC (NACE TM0177). Mekhoa e tloaelehileng ea kamohelo: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Re fane ka tšebeletso e bolila ea X42 mererong ea Bochabela bo Hare le Afrika Bophirimela.
P: U netefatsa boleng ba ho tjheseletsa joang bakeng sa liphaephe tse teteaneng tsa lebota (40–60mm)?
K: Re sebelisa SAW ea li-pass tse ngata e nang le taolo e nepahetseng ea ho kenya mocheso, tlhokomelo ea mocheso oa li-interpass, le UT e iketsang ea 100% e nang le nako ea ho fofa ha sefofane (TOFD) bakeng sa tlhahlobo ea volumetric. PWHT e sebelisoa ho imolla khatello e setseng.
Tšupiso ea Morero - Marang-rang a ho Bokella Khase ea Tlhaho ea Afrika Bophirimela
Naha:Nigeria (Sebaka sa Niger Delta)
Maemo le Kereiti:API 5L X42 PSL2 (tšebeletso e bolila, e lekoa ke HIC)
Litekanyo le Bongata:
OD 508mm (20″) × Boima 11.9mm – limithara tse 12,000 (hoo e ka bang lithane tse 1,800) e entsoeng ke ts'ebetso ea JCOE
OD 762mm (30″) × Boima 19.0mm – limithara tse 3,500 (hoo e ka bang lithane tse 1,550) e entsoeng ka seam e le 'ngoe ea poleiti e phuthiloeng e nang le PWHT
Litlhaloso:Seaparo sa kantle sa 3LPE (botebo bohle ba 2.8mm), lipheletso tse betliloeng 30° / 1.6mm sefahleho sa motso, teko ea hydro ho 8.5 MPa (khatello ea moralo 6.4 MPa). Tšusumetso ea Charpy e tlamang ho 0°C (bonyane 27J, e fihlelletsoe 65–90J). HIC ka NACE TM0284 Tharollo A, 96h - litekanyetso tsa kamohelo: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%.
Kopo:Ho bokelloa ha khase ea tlhaho ho tloha lithabeng tse tšeletseng ho ea setsing sa ts'ebetso se bohareng sebakeng se nang le mokhoabo sa Niger Delta. Phaephe e boima ea lebota ea lisenthimithara tse 30 e sebelisitsoe bakeng sa hlooho e kholo e tšelang karolo ea mokhoabo ea lik'hilomithara tse 1.2, ha liphaephe tsa JCOE tsa lisenthimithara tse 20 li ne li sebetsa e le mela ea makala.
Liphephetso tsa Tekheniki le Litharollo:
●Tšela mokhoabo o nang le phaephe e boima ea lebota– Liphaephe tsa 30″ × 19.0mm (hoo e ka bang 355 kg/m) li ile tsa tlameha ho kenngoa holim'a mokhoabo o nang le letsopa le bonolo haholo. Likepe tse tloaelehileng tsa ho betla li ne li sa khone ho kena sebakeng seo. Womic Steel e fane ka liphaephe tse nang le manonyeletso a malelele a le mong (18m ho fapana le 12m e tloaelehileng) ho fokotsa palo ea li-weld tsa field girth ka 33%, ho fokotsa ho tjheseletsa sebakeng seo maemong a thata. Re boetse re fane ka likhothaletso tse qaqileng tsa ho phahamisa le ho sebetsana le tsona ho kenyeletsoa le sebaka sa ho jala.
●Ho latela melao ea litšebeletso tse mpe (H₂S e teng)– Khase e amanang le yona e ne e na le ho fihla ho 30 ppm H₂S. Womic e entse teko ya HIC diphaepheng tsa poleiti tse phuthilweng tsa 20″ JCOE le 30″. Disampole tsohle di fetisitswe ka CLR 0%, CTR 0%, CSR 0%. Bakeng sa phaephe ya 30″ (19mm WT), moreki o ne a hloka boima bo ka tlase ho 85 HRB (bo thata ho feta API 5L's 90 HRB). Womic e ne e sebedisa ho futhumatsa ha induction sebakeng seo ho weld seam ho netefatsa hore boima bo tshwana. Diphetho: tshepe ya motheo 78–82 HRB, weld 80–85 HRB.
● Ho khomarela ha sekoahelo sa 3LPE mongobong o phahameng– Ho kenngwa ha metsi a metsi ho ne ho bolela hore diphaephe di tla qoelisoa ka metsing dibeke tse mmalwa pele ho tlatswa hape. 3LPE e tloaelehileng e ka ba le ho qhalana ha cathodic haeba mongobo o sebediswang o sa laolwe. Womic o ile a kenya lesela sebakeng sa mosebetsi se laolwang ke tlelaemete (max 60% RH) mme a etsa tlhahlobo ya matsatsi a phomolo ya 100% ho 5kV. Matla a ho ntsha a lekilweng ho 25°C a fane ka > 200 N/cm, e leng se fetang tlhoko ya ISO 21809 ya 100 N/cm.
●Thepa ea thepa ho ea sebakeng se hole– Liphaephe li ile tsa romelloa ho tloha Shanghai ho ea Tin Can Island Port, Lagos, eaba li tsamauoa ka literaka tse 380km ho ea sebakeng sa Niger Delta. Maemo a litsela a ne a le mabe ka lithibelo tsa boima. Womic o ile a rala moralo oa ho romela thepa a sebelisa bolelele bo tloaelehileng ba 12m bakeng sa liphaephe tsa 20″ (tse kopantsoeng) le manonyeletso a le mong a 18m bakeng sa liphaephe tsa 30″ holim'a litereilara tse bataletseng tse nang le likoloi tsa ba felehetsang. Ha ho na tšenyo ea ho koahela kapa ho kobeha ho etsahetseng nakong ea lipalangoang.
● Sephetho:Marangrang a pokello ea khase a ile a qala ho sebetsa kotara ea pele ea 2024. Lithane tsohle tse 1,550 tsa phaephe ea 30″ le lithane tse 1,800 tsa phaephe ea 20″ li fetile tlhahlobo ea motho oa boraro ke SGS Nigeria. Moreki o tlalehile hore ha ho na liphoso tsa ho tjheseletsa nakong ea ho tjheseletsa ha sebaka sa tšimo, tse bakoang ke geometry e tsitsitseng ea bevel le taolo ea ovality (≤ 0.3% bakeng sa liphaephe tsa JCOE, ≤ 0.5% bakeng sa liphaephe tsa poleiti tse phutholohileng). Womic Steel joale e thathamisitsoe e le mofani ea amohetsoeng bakeng sa katoloso ea liphaephe tsa moreki nakong e tlang.
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 X42 LSAW bakeng sa pokello ea khase ea khatello e mahareng, ente ea metsi, le lits'ebetso tsa tšebeletso e bolila.
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