1. Womic Steel: Kev Muaj Peev Xwm Tsim Khoom & Lub Zog ntawm Lub Tuam Txhab
Womic Steel Group ua haujlwm ntau txoj kab ntau lawm LSAW uas tau tsim tshwj xeeb rau cov phab ntsa hnyav thiab cov ntawv thov piling loj. ASTM A252 Qib 3 cov kav dej xav tau kev ua haujlwm siab thiab cov khoom siv kho tshuab zoo sib xws rau kev tsav tsheb hauv thaj teb (hammering) yam tsis muaj kev tawg.
● Kab JCOE:Rau cov txoj kab uas hla 406mm – 1,422mm (16″–56″), phab ntsa tuab txog li 50.8mm. Haum rau choj thiab cov ncej hauv paus tsev.
●Kab UOE:Rau cov kab uas hla 508mm – 1,220mm (20″–48″), phab ntsa tuab txog li 40mm. Tsim cov pawg puag ncig heev rau kev tsav tsheb nruj.
●Phaj Dov (Ib Leeg Sib Dhos - Phab Ntsa Hnyav):Rau cov txoj kab uas hla 600mm - 3,500mm (24″–138″), phab ntsa tuab ntawm 25mm txog 100mm. Ib daim phaj dov thiab vuam ntev. Zoo tagnrho rau cov pawg loj hauv dej hiav txwv thiab cov pawg tsho hauv hiav txwv.
● Phaj dov (Ob chav sib txuas):Rau cov txoj kab uas hla 1,200mm - 3,500mm (48″–138″), phab ntsa tuab txog li 100mm. Ob txoj kab sib txuas ntev. Siv rau cov pawg loj tshaj plaws hauv hiav txwv.
Tag nrho cov peev xwm LSAW tshaj 300,000 tons txhua xyoo, nrog rau kev tsim cov yeeb nkab piling tshwj xeeb tshaj 120,000 tons hauv ib xyoos. Womic Steel tuav ISO 9001, CE (EN 10219, EN 10248), thiab tuaj yeem muab kev tshuaj xyuas thib peb los ntawm SGS, BV, ABS, DNV, thiab TÜV. Tshaj 500 km ntawm cov yeeb nkab piling muab thoob ntiaj teb rau cov chaw nres nkoj, choj, thiab cov hauv paus hauv hiav txwv.
Kev Yooj Yim Tsim Khoom rau ASTM A252 Qib 3:
●JCOE: 406–1,422mm OD × 6.0–50.8mm WT × ≤ 18m
●UOE: 508–1,220mm OD × 6.0–40.0mm WT × ≤ 24m
●Phaj dov (ib txoj kab sib txuas): 600–3,500mm OD × 25–100mm WT × ≤ 18m (txog li 60m los ntawm kev vuam ntau ntu)
●Phaj dov (ob chav sib txuas): 1,200–3,500mm OD × 25–100mm WT × ≤ 18m
Rau qhov ntev heev txog li 60m, Womic tuaj yeem vuam ntau ntu los ntawm qhov kawg mus rau qhov kawg siv cov vuam SAW circumferential tag nrho (100% UT tshuaj xyuas). Cov pawg ntev no txo cov kev sib txuas thaum lub sijhawm teeb tsa.
2. ASTM A252 Qib 3: Cov Khoom Siv Sib xyaw & Cov yam ntxwv ua tau zoo
ASTM A252 Qib 3 yog qib muaj zog tshaj plaws hauv A252 cov lus qhia rau cov yeeb nkab hlau welded thiab seamless. Qhov tsawg kawg nkaus ntawm yield zog ntawm 345 MPa (50,000 psi) thiab tensile zog ntawm 455 MPa (66,000 psi). Tsis zoo li API 5L, A252 tsis muaj PSL1 / PSL2 kev faib tawm tab sis xav tau zoo ductility (elongation) thiab weld soundness rau kev tsav tsheb hauv thaj teb.
Cov Tshuaj Lom Zem (qhov siab tshaj plaws % los ntawm pawg - ib txwm muaj rau Qib 3, ASTM A252 tsis yuam kom muaj kev txwv tsis pub dhau):
| Khoom | Qhov ntau yam (Womic Steel) |
| C | 0.20 – 0.26 |
| Mn | 0.80 – 1.30 |
| P | ≤ 0.030 |
| S | ≤ 0.030 |
| Si | 0.15 – 0.40 |
| CEV | ≤ 0.45 (feem ntau ≤ 0.42) |
Womic siv cov pa roj carbon thiab manganese uas tswj tau kom ua tiav qib 3 lub zog thaum tseem tswj tau qhov ductility zoo heev thiab weldability hauv thaj teb.
Cov Khoom Siv Kho Tshuab (Chav Kub):
| Vaj tse | ASTM A252 Qib 3 |
| Lub Zog Tawm (min) | 345 MPa (50,000 psi) |
| Lub zog Tensile (min) | 455 MPa (66,000 psi) |
| Kev ntev (min) | 20% (rau 50 hli gauge) |
| Qhov nyuaj (ib txwm) | 75-85 HRB |
Kev sib piv nrog ASTM A252 Qib:
| Qib | Cov qoob loo MPa (min) | Tensile MPa (min) | Daim Ntawv Thov Ib Txwm Muaj |
| Qib 1 | 205 | 310 | Kev ua haujlwm sib zog, kev teeb tsa ib ntus |
| Qib 2 | 240 | 415 | Kev tsim kho lub hauv paus dav dav |
| Qib 3 | 345 | 455 | Lub luag haujlwm hnyav, lub hauv paus tob, marine |
Qib 3 muaj zog dua li Qib 2 kwv yees li 40%, uas ua rau cov phab ntsa nyias dua lossis muaj peev xwm thauj khoom ntau dua rau tib lub cheeb.
3. Kev Ua Raws Li Qhov Ntev thiab Cov Qauv
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Tus Qauv | ASTM A252 Qib 3 (kuj muaj Qib 1, Qib 2) |
| Cov Txheej Txheem Tsim Khoom | JCOE, UOE, phaj dov (ib leeg/ob leeg sib txuas) |
| Sab Nraud Txoj Kab uas hla | 219mm – 3,500mm (8″ – 138″) |
| Phab ntsa tuab ntau yam | JCOE/UOE: 6.0mm – 50.8mm; Phaj dov: 25mm – 100mm |
| Qhov Ntev Ntau | Txheem: 6m, 12m, 18m; Txuas ntxiv: txog li 60m (cov seem vuam) |
| Xaus tiav | Plain End (PE), Beveled End (BE), lossis threaded nrog coupling (thaum thov) |
| Qhov Chaw Tiav | Liab qab, Roj, Dub Txheej, Epoxy, Thee Tar Epoxy, Zinc (galvanized) |
| Kev kam rau siab | OD: ±0.75% lossis ±3.2 hli; WT: -0% / +15%; Ntev: +100 hli / -0 hli rau kev sib dhos (tsis nruj dua li API) |
| Kev Ncaj Ncees | ≤ 0.2% ntawm qhov ntev (feem ntau) |
4. Qhov Loj & Cov Lus Qhia Tshwj Xeeb - ASTM A252 Qib 3 LSAW Cov Yeeb Nkab Hlau (Xaiv Cov Loj Ib Txwm)
| OD (hli) | Kev Xaiv WT (hli) | Txheej Txheem | Kwv yees li qhov hnyav (kg / m2) | Tus Qauv Ntev | Daim Ntawv Thov Ib Txwm Muaj |
| 219 | 6.4, 8.0, 10.0, 12.5 | JCOE | 33.6 – 63.6 | 12m / 18m | Lub hauv paus tsim kho |
| 273 | 6.4, 8.0, 10.0, 12.5 | JCOE | 42.1 – 80.1 | 12m / 18m | Choj pier |
| 324 | 8.0, 10.0, 12.5, 14.0 | JCOE | 62.4 – 107.1 | 12m / 18m | Kev tsim cov ncej chaw nres nkoj |
| 406 | 8.0, 10.0, 12.5, 14.0, 16.0 | JCOE/UOE | 78.5 – 153.9 | 12m / 18m | Lub hauv paus chaw nres nkoj |
| 508 | 10.0, 12.5, 14.0, 16.0, 19.0 | UOE | 122.8 – 229.1 | 12m / 18m / 24m | Kev tsim cov ncej dej hiav txwv |
| 610 | 12.5, 14.0, 16.0, 19.0, 22.0 | UOE | 184.2 – 319.1 | 12m / 18m / 24m | Kev nthuav dav ntawm chaw nres nkoj |
| 711 | 12.5, 14.0, 16.0, 19.0, 22.0, 25.4 | JCOE/UOE | 215.3 – 429.4 | 12m / 18m | Lub platform offshore |
| 813 | 14.0, 16.0, 19.0, 22.0, 25.4, 30.0 | JCOE | 275.9 – 579.8 | 12m / 18m | Lub hauv paus tob |
| 914 | 16.0, 19.0, 22.0, 25.4, 30.0, 35.0 | JCOE/Kuav | 354.4 – 759.2 | 12m / 18m | Choj caisson |
| 1,016 | 19.0, 22.0, 25.4, 30.0, 35.0, 40.0 | Dov | 467.1 – 963.9 | 12m / 18m | Chaw nres nkoj Marine |
| 1,220 | 22.0, 25.4, 30.0, 35.0, 40.0, 45.0, 50.0 | Dov | 650.0 – 1,450.5 | 12m / 18m | Lub tsho tiv no hauv hiav txwv |
| 1,422 | 25.4, 30.0, 35.0, 40.0, 45.0, 50.0, 60.0 | Dov | 875.1 – 2,016.8 | 12m / 18m | Cov pawg loj hauv hiav txwv |
| 1,600 | 30.0, 40.0, 50.0, 60.0, 70.0, 80.0 | Dov (ob npaug) | 1,162 – 3,000 | 12m / 18m | Lub hauv paus dej tob |
| 2,000 | 40.0, 50.0, 60.0, 70.0, 80.0, 90.0 | Dov (ob npaug) | 1,933 – 4,240 | 12m | Qhov project chaw nres nkoj loj |
| 2,500 | 50.0, 60.0, 70.0, 80.0, 90.0, 100.0 | Dov (ob npaug) | 3,023 – 5,917 | 12m | Cov qauv dej hiav txwv loj |
| 3,000 | 60.0, 70.0, 80.0, 90.0, 100.0 | Dov (ob npaug) | 4,351 – 7,149 | 12m | Lub zog cua ua liaj ua teb hauv hiav txwv |
Cov kav dej phab ntsa hnyav (≥ 50mm) yuav xav tau PWHT los txo cov kev ntxhov siab seem. Rau cov chaw nyob hauv dej hiav txwv, kev tswj hwm qhov nyuaj ntxiv tuaj yeem muab tau thaum thov.
5. Cov Qauv & Qib Sib Xws - Cov Yeeb Nkab Tsim Kho
| Tus Qauv | Cov Qib Hlau | Daim Ntawv Thov Ib Txwm Muaj | Cov Txheej Txheem Tsim |
| ASTM A252 | Qib 1, 2, 3 | Kev tsim cov hauv paus, marine | JCOE/UOE/Kuav |
| EN 10248 | S235GP, S275GP, S355GP | Cov ntawv dov kub (yeeb nkab) | Dov |
| EN 10219 | S235JRH, S275JRH, S355JRH, S355J2H | Cov seem hollow uas tau vuam txias | JCOE/Kuav |
| API 5L | GR.B, X42, X52 | Kev tsim cov platform roj / roj av | JCOE/UOE |
| ASTM A500 | GR.B, GR.C | Lub raj kheej kheej kheej | JCOE |
| BS 7191 | S275, S355 | Cov qauv tsim kho hauv hiav txwv | Dov |
Kev siv luv luv:Cov hauv paus choj, chaw nres nkoj thiab chaw nres nkoj piling, offshore platform jacket piles, lub hauv paus turbine cua, lub hauv paus tsev tob, cofferdams, marine fender systems.
6. Cov Txheej Txheem Tsim Khoom - LSAW rau ASTM A252 Qib 3 Cov Yeeb Nkab Hlau
Womic Steel xaiv cov txheej txheem raws li txoj kab uas hla thiab phab ntsa tuab. Rau cov ntawv thov piling, qhov kev kam rau siab tsis nruj dua li API 5L, tab sis kev sib txuas ruaj khov thiab kev ywj pheej yog qhov tseem ceeb rau kev tsav rauj.
Txheej Txheem JCOE (406–1,422mm OD, 6.0–50.8mm WT):
● Kev txiav ntug phaj (kab nkhaus yooj yim, tsis tas yuav tsum muaj X lossis J nruj)
● Kev tsim cov JCO sib law liag
● SAW vuam (sab hauv thiab sab nraud)
● Kev nthuav dav ntawm lub tshuab (xaiv tau - feem ntau cov kav dej tsis tas yuav nthuav dav)
● Haum rau feem ntau cov ncej hauv paus
Cov Txheej Txheem UOE (508–1,220mm OD, 6.0–40mm WT):
● U-nias thiab O-nias nrog kev nthuav dav
● Tsim cov pawg puag ncig heev - pab tau rau kev tsav tsheb nruj hauv cov qhov uas tau tho ua ntej
● Siv rau cov platform piles hauv hiav txwv
Phaj Dov (Ib Leeg Sib Dhos) rau Phab Ntsa Hnyav & Txoj Kab Uas Loj (600–3,500mm OD, 25–100mm WT):
● 4-yob khoov rau hauv lub tog raj kheej
● Kev vuam SAW ntev (ntau txoj kev hla rau cov phab ntsa tuab)
● Tsis muaj kev nthuav dav ntawm lub cev (kev kam rau siab ntawm ovality ± 0.75% yog qhov siv tau rau kev sib sau ua ke)
● Zoo tagnrho rau cov pawg loj hauv dej hiav txwv uas qhov puag ncig tsis tseem ceeb npaum li qhov muaj peev xwm thauj khoom tau
Phaj Dov (Ob Chav Sib Dhos) rau Txoj Kab Uas Loj Heev (1,200–3,500mm OD, 25–100mm WT):
● Ob lub phaj dov thiab vuam raws ob txoj kab sib txuas
● Txhua qhov sib txuas 100% UT thiab RT kuaj xyuas
● Siv rau cov pawg loj tshaj plaws (cov pawg cua ua liaj ua teb uas loj txog li 10m OD)
Kev Tsim Khoom Ntev (txog li 60m):Rau cov haujlwm uas xav tau cov pawg ntev heev (piv txwv li, cov cua ntsawj hiav txwv), Womic tuaj yeem vuam ntau ntu 12m lossis 18m los ntawm qhov kawg mus rau qhov kawg siv cov kev sib txuas tag nrho SAW circumferential butt welds. Txhua qhov kev sib txuas circumferential yog 100% UT thiab RT tshuaj xyuas. Cov pawg tiav lawm yog kev ntxhov siab-relievered (PWHT) yog tias phab ntsa tuab tshaj 40mm.
7. Kev Tswj Xyuas Zoo & Cov Txheej Txheem Ntsuas rau ASTM A252 Qib 3 LSAW Steel Pipe
| Theem | Txoj Kev Tshuaj Xyuas | Lub Hom Phiaj |
| Phaj | Kev Tshuaj Xyuas Tshuaj | Txheeb xyuas cov pa roj carbon/manganese |
| Phaj | Kev Ntsuas Tensile | Txheeb xyuas qhov tawm los thiab lub zog tensile (≥ 345/455 MPa) |
| Phaj | Kev Ntsuas Khoov | Kev txheeb xyuas qhov du |
| Nyob rau hauv-Txheej Txheem | Qhov Loj (OD, WT, ovality) | Xyuas kom meej tias cov yeeb nkab sib npaug |
| Weld seam | Kev Ntsuas Ultrasonic (100% rau cov pawg tseem ceeb) | Tshawb nrhiav qhov tsis zoo ntawm vuam |
| Weld seam | RT (qhov chaw - 10% feem ntau rau kev piling) | Kev txheeb xyuas qhov zoo ntawm vuam |
| Weld seam | MPI (cov ntiv taw vuam) | Cov kab nrib pleb ntawm qhov chaw (qhov tseem ceeb rau cov pawg tsav) |
| Cov yeeb nkab tiav lawm | Kev Ntsuas Hydrostatic (xaiv tau - tsis tshua xav tau kev sib dhos) | Tsuas yog tias tau teev tseg xwb |
| Cov yeeb nkab tiav lawm | Kev Ntsuas Khoov Qhia (weld) | Weld ductility rau kev tsav tsheb |
| Cov yeeb nkab tiav lawm | Kev Ntsuas Kom Sib Nqus | Lub cev yeeb nkab ductility |
| Cov yeeb nkab tiav lawm | Kev Pom thiab Kev Cim | Qhov xwm txheej ntawm qhov chaw, qhov ntev cim |
Rau cov pawg tsav (kev teeb tsa rauj):Kev ntsuam xyuas Weld MPI thiab kev ntsuas khoov uas coj los ntawm kev coj ua yog qhov tseem ceeb heev kom ntseeg tau tias qhov vuam muaj sia nyob ntawm kev cuam tshuam.
Xaiv tau rau cov chaw nyob hauv dej hiav txwv lossis cov chaw muaj kuab paug:
● Kev tshuaj xyuas txheej (kev kuaj pom hnub so, kev nplaum, tuab)
● Kev kuaj qhov nyuaj (rau cov chaw nyob hauv dej hiav txwv uas muaj kua qaub)
● PWHT rau cov phab ntsa tuab (> 50 hli)
8. Cov Ntawv Thov Tseem Ceeb - ASTM A252 Qib 3 LSAW Cov Yeeb Nkab Hlau
●Lub hauv paus choj- Cov pawg sib sib zog nqus rau cov ncej choj hauv cov dej ntws thiab cov av mos
● Chaw nres nkoj thiab chaw nres nkoj piling- Cov chaw nres nkoj, cov phab ntsa ntug dej hiav txwv, cov hauv paus ntawm cov thawv ntim khoom
● Cov pawg tsho tiv no ntawm ntug dej hiav txwv- Cov ncej hauv paus rau cov roj / roj av hauv qhov tob tob mus rau qhov nruab nrab
● Lub hauv paus ntawm lub tsev cua turbine- Monopiles rau cov liaj teb cua hauv hiav txwv (feem ntau yog txoj kab uas hla loj, phab ntsa tuab)
● Lub hauv paus tob ntawm lub tsev siab- Cov pawg khoom thauj khoom rau cov skyscrapers hauv nroog
● Cov khoom txhawb nqa Marine fender- Cov tshuab fender rau kev nres nkoj
● Cov qhov dej thiab cov phab ntsa uas tuav tau- Kev khaws cia lub ntiaj teb ib ntus lossis mus tas li
● Cov paib kev loj thiab cov ncej teeb pom kev zoo- Cov piling me me rau kev thauj mus los hauv paus
● Cov ncej ruaj khov av- Cov haujlwm txhim kho av
● Lub hauv paus choj tsheb ciav hlau- Cov kev tsim kho tsheb ciav hlau hnyav
9. Ntim & Xa Khoom - ASTM A252 Qib 3 LSAW Cov Yeeb Nkab Hlau
Cov kav dej piling feem ntau raug xa mus rau ntau qhov chaw, feem ntau ncaj qha mus rau qhov chaw tsim kho.
Ntim:
● Cov kab uas hla me me (≤ 610mm): Muab khi nrog cov hlua hlau (3-5 txoj hlua ib pob) nrog cov ntaub thaiv ces kaum tiv thaiv.
● Cov kav dej loj (> 610mm): Cov kav dej ib leeg, sib cais los ntawm cov ntoo dunnage.
● Cov pawg phab ntsa hnyav: Cov kav dej ib leeg nrog cov khoom txhawb nqa ntawm 3-4 qhov chaw.
● Lub hau kawg: Lub hau yas rau cov kawg uas nkhaus; cov kawg uas tiaj tus yuav tsum qhib cia.
● Kev tiv thaiv txheej: Rau cov pawg coated, roj hmab padding lossis ua npuas ncauj qhwv ntawm cov khaubncaws sab nraud povtseg.
Kev Xa Khoom:
● Cov thoob khib nyiab rau cov pawg loj thiab ntev (txog li 60m)
● Cov txee tiaj tiaj lossis cov thawv qhib rau saum toj rau qhov ntev txog li 18m
● Cov thawv rau cov khoom me me (< 610mm, ≤ 12m)
● Tsheb ciav hlau los yog tsheb thauj khoom rau kev xa khoom mus rau hauv av
Cov ntaub ntawv pov thawj:Daim Ntawv Pov Thawj Xeem Zeb (EN 10204 Hom 3.1), daim ntawv qhia qhov ntev, daim ntawv qhia UT/RT (yog tias teev tseg), daim ntawv teev cov khoom ntim khoom, daim ntawv xa nqi lag luam, COO.
10. Cov txiaj ntsig ntawm Womic Steel & FAQ - ASTM A252 Qib 3 LSAW Steel Pipe
Vim li cas Womic Steel rau ASTM A252 Qib 3 Piling Pipe?
●Muaj peev xwm loj txog li 3,500 hli (138″) - zoo tagnrho rau cov monopiles thiab cov marine piles loj
●Phab ntsa hnyav txog li 100 hli - txhawb nqa cov khoom thauj axial thiab sab siab heev
●Kev tsim cov pawg ntev txog li 60m - txo cov kev sib txuas hauv thaj teb thiab lub sijhawm teeb tsa
●Ntau yam txheej txheem (JCOE, UOE, dov phaj) rau kev tsim khoom tsim nyog
●Kev tshuaj xyuas sab nraud muaj (SGS, BV, ABS, DNV)
●Muaj ntau tshaj 500 km ntawm cov kav dej piling xa mus thoob ntiaj teb
●Kev sib tw nqi rau cov haujlwm loj hauv kev tsim kho vaj tse
Cov Lus Nug Feem Ntau:
Q: Qhov txawv ntawm ASTM A252 Qib 3 thiab API 5L X52 rau kev piling yog dab tsi?
A: Qib 3 muaj zog qis dua (345 MPa vs X52's 360 MPa) tab sis nws yog tsim tshwj xeeb rau kev tsav piling. Nws muaj qhov siab dua ductility thiab elongation xav tau (20% min) thiab muaj kev kam rau siab dua ntawm kev cuam tshuam thaum lub sijhawm tsav rauj. API 5L X52 kuj tseem siv tau rau kev piling, tab sis Qib 3 yog tus qauv kev lag luam rau cov foundation piles hauv North America thiab ntau qhov project thoob ntiaj teb.
Q: Koj puas tuaj yeem muab cov pawg ntev dua 18m?
A: Yog. Peb tuaj yeem vuam ntau ntu 12m lossis 18m ua ke kom ua tau ntev txog 60m. Txhua qhov vuam ncig yog 100% UT tshuaj xyuas thiab tuaj yeem tshuaj xyuas RT thaum thov. Cov pawg ntev no feem ntau siv rau cov cua hiav txwv monopiles (ntev 30-50m).
Q: Qhov siab tshaj plaws ntawm phab ntsa tuab rau Qib 3 LSAW yeeb nkab yog dab tsi?
A: Cov phaj dov ib txoj kab txuas mus txog 100 hli, ob txoj kab txuas kuj mus txog 100 hli. Rau cov phab ntsa tuab tshaj 100 hli (piv txwv li, 120 hli), thov hu rau peb kom tau txais kev soj ntsuam tshwj xeeb. Peb tau muab 120 hli WT pawg rau cov hauv paus dej tob tshwj xeeb.
Q: Cov kav dej no puas xav tau kev kuaj hydrostatic?
A: ASTM A252 tsis tas yuav tsum tau kuaj hydrostatic vim tias cov kav dej piling tsis yog cov uas muaj kev siab. Txawm li cas los xij, yog tias koj qhov project xav tau kev kuaj hydrostatic (piv txwv li, rau kev sib xyaw ua ke ntawm piling thiab kev thauj mus los ntawm cov kua dej), peb tuaj yeem ua nws ntawm tus nqi ntxiv.
Q: Cov txheej txheem twg raug pom zoo rau kev teeb tsa nkoj?
A: Rau cov chaw nyob hauv dej hiav txwv, cov thee tar epoxy (tuab 600-800 microns) lossis iav flake epoxy yog cov khoom siv ntau. Rau cov cheeb tsam dej txaws, peb pom zoo kom siv FBE lossis 3LPE nrog kev tiv thaiv kev sib txhuam ntxiv. Rau cov dej tshiab lossis av, cov yeeb nkab dub lossis cov nplaim roj feem ntau txaus.
Q: Koj ua li cas thiaj paub tseeb tias cov welds muaj sia nyob rau kev tsav tsheb rauj?
A: Peb ua 100% UT ntawm cov kab txuas ntxiv rau MPI (kev tshuaj xyuas cov khoom sib nqus) ntawm cov ntiv taw txuas kom pom cov kab nrib pleb ntawm qhov chaw. Peb kuj ua qhov kev sim khoov coj ntawm cov qauv txuas kom paub tseeb tias nws ductility. Rau cov pawg tsav tseem ceeb, peb kuj tuaj yeem muab kev sim cuam tshuam Charpy ntawm 0 ° C lossis qis dua.
Q: Lub sijhawm ua cov kav dej qib 3 yog dab tsi?
A: Lub sijhawm ua tus qauv: 30-45 hnub rau cov kav dej uas muaj txoj kab uas hla ≤ 1,422 hli. Rau cov kav dej uas muaj txoj kab uas hla loj (> 1,422 hli): 45-60 hnub. Rau cov kav dej ntev uas vuam lawm (txog li 60m): ntxiv 2-3 lub lis piam rau kev vuam ncig thiab kev tshuaj xyuas.
Cov Lus Qhia Txog Qhov Project - Chaw Nres Nkoj Houston Container Terminal Expansion
Lub Tebchaws:Tebchaws Meskas (Houston, Texas)
Tus Qauv & Qib:ASTM A252 Qib 3 (nrog rau kev cuam tshuam Charpy ntxiv ntawm 0 ° C)
Qhov Loj & Qhov Ntau:
●OD 914mm (36″) × WT 19.0mm – 18,000 meters (kwv yees li 7,600 tons) tsim los ntawm JCOE txheej txheem
●OD 1,067mm (42″) × WT 22.2mm – 9,000 meters (kwv yees li 4,600 tons) tsim los ntawm cov phaj dov ib leeg
●OD 1,219mm (48″) × WT 25.4mm – 3,500 meters (kwv yees li 2,500 tons) tsim los ntawm cov phaj dov ib leeg (rau cov chaw nres dej tob)
Tag Nrho:30,500 meters (30.5 km) ntawm kev sib sau ua ke, kwv yees li 14,700 tons
Cov Lus Qhia:Cov xaus tiaj tiaj (txiav plaub fab) nrog chamfer, txheej epoxy (500 microns, hom thee tar epoxy) rau kev tiv thaiv xeb hauv cov dej brackish Houston Ship Channel. Yuav tsum tau kuaj flattening (tsis muaj kab nrib pleb tom qab 1/3 txoj kab uas hla flattening). Kev kuaj khoov qhia rau weld ductility. 100% UT ntawm weld seam ntxiv rau 10% RT qhov chaw. MPI ntawm weld toes. Charpy cuam tshuam ntawm 0 ° C (yam tsawg kawg nkaus 20J, ib txwm muaj 40-60J). Kev tshuaj xyuas sab nraud los ntawm SGS.
Daim Ntawv Thov:Kev nthuav dav ntawm Bayport Container Terminal ntawm Chaw Nres Nkoj Houston. Qhov project no suav nrog kev tsim ob lub chaw nres nkoj tshiab (1,200m tag nrho phab ntsa ntug dej) nrog thaj chaw cia khoom ntawm ntug dej. Cov kav dej hlau ua lub hauv paus rau cov qauv pob zeb ua vaj tse (cov kav dej ntsug) thiab ua cov kav dej txhawb nqa (kev thauj khoom sab nraud). Qhov tob ntawm dej ntawm cov chaw nres nkoj: 16m.
Cov Kev Sib Tw thiab Kev Dais Teeb Meem:
●Ib puag ncig dej ntsev uas muaj corrosive– Houston Ship Channel muaj cov chloride ntau (10,000-18,000 ppm) thiab pH qis (6.5-7.0) vim yog cov dej ntws los ntawm kev lag luam. Womic thov thee tar epoxy txheej (600 microns DFT) nrog ob txheej: primer (200 microns) + topcoat (400 microns). Txheej dhau 3,000 teev ntsev tsuag sim (ASTM B117) nrog <2 hli creep. Kev kuaj pom hnub so ua tiav ntawm 3.5kV nrog xoom qhov tsis ua haujlwm.
●Kev tsav tsheb siab heev hauv cov xuab zeb ntom ntom– Cov av ntawm qhov chaw nres tsheb muaj cov xuab zeb silty ntom ntom nrog rau qhov kev sim nkag mus rau hauv tus qauv (SPT) N-tus nqi ntawm 30-50. Kev tsav tsheb pawg tau mus txog 80% ntawm lub zog tso zis. Womic tau ua qhov kev sim khoov ntawm cov ntawv txuas (qhov khoov radius 4x tuab, 180 °) tsis muaj qhov tawg. Peb kuj tau muab qhov MPI vuam rau txhua lub pawg 50th kom ntseeg tau tias tsis muaj qhov tawg ntiv taw. Tus neeg cog lus tsav tsheb pawg ntawm tus neeg siv khoom tau tshaj tawm tias tsis muaj qhov vuam tawg thaum lub sijhawm teeb tsa 2,100 pawg.
●Cov kab ntev ntev rau cov chaw nres nkoj tob– Qhov chaw tob tshaj plaws yuav tsum tau muab cov ncej uas raug tsav mus rau qhov tob 32m (20m rau hauv qab dej hiav txwv + 12m saum av nplaum). Cov pob qij txha 12m ib txwm yuav tsum tau 3 qhov sib txuas hauv thaj chaw rau ib pawg. Womic muab cov pob qij txha ntev 18m (dov phaj ib leeg) rau cov pawg 1,067mm thiab 1,219mm, txo cov sib txuas hauv thaj chaw los ntawm 3 mus rau 2 rau ib pawg (txuag 35% lub sijhawm vuam). Peb kuj tau muab cov pawg ntev 36m rau lub kaw lus fender (tsis tas yuav muaj kev sib txuas) los ntawm kev vuam ob ntu 18m kawg-rau-kawg nrog SAW nkag mus tag nrho thiab 100% UT.
●Kev cuam tshuam rau kev tsav tsheb thaum lub caij ntuj no– Lub caij ntuj no kub hauv Houston tuaj yeem poob mus txog -5°C. Kev tsav pawg ntawm qhov kub qis yuav ua rau muaj kev tawg yooj yim. Womic muab Qib 3 nrog kev ua kom muaj zog dua hauv qhov kub qis: Charpy impact ntawm 0°C min 20J (tus qauv A252 tsis tas yuav kuaj kev cuam tshuam). Cov txiaj ntsig tiag tiag: 45-65J ntawm 0°C, 35-50J ntawm -10°C. Tus neeg siv khoom suav nrog qhov no ua qhov tsis tas yuav tsum ua tab sis muaj txiaj ntsig zoo.
●Kev xa khoom raws sijhawm– Qhov chaw tsim kho muaj thaj chaw tso khoom tsawg (tsuas yog 8,000 square meters). Womic teem sijhawm xa khoom plaub zaug (kwv yees li 3,700 tons txhua lub) dhau 5 lub hlis. Cov kav dej tau xa los ntawm lub nkoj tawg-tawg los ntawm Shanghai mus rau Houston, tom qab ntawd thauj khoom ua pawg ntawm 200 tons txhua 2 lub lis piam. Pab pawg logistics ntawm Womic tau sib koom tes nrog lub chaw haujlwm chaw nres nkoj kom muab qhov tseem ceeb rau kev tshem tawm thiab coj cov tsheb thauj khoom, zam kev khaws cia ntawm chaw nres nkoj. Tag nrho cov khoom xa tuaj txog hauv ± 3 hnub ntawm hnub teem tseg.
●Kev Ua Raws Cai nrog Kev Zam Txim Yuav Khoom hauv Asmeskas– Qhov project Chaw nres nkoj Houston xav tau kev zam rau cov hlau txawv teb chaws vim tias kev tsim khoom hauv Tebchaws Meskas tsis tuaj yeem ua raws li lub sijhawm teem tseg. Womic tau muab cov ntaub ntawv qhia txog cov ntaub ntawv suav nrog daim ntawv pov thawj zeb, lub tebchaws keeb kwm, thiab kev taug qab cov khoom siv. Daim ntawv zam tau pom zoo, thiab tag nrho 14,700 tons tau dhau los ntawm Tebchaws Meskas cov kev lis kev cai yam tsis muaj kev ncua.
● Qhov Tshwm Sim:Lub Chaw Nres Nkoj Bayport Container Terminal nthuav dav tau ua tiav hauv Q3 2024, ua ntej lub sijhawm teem tseg. Tag nrho 2,100 lub yeeb nkab steel piles tau dhau qhov kev sim thauj khoom (kev sim thauj khoom zoo li qub ntawm 5% ntawm cov piles: kev sib haum xeeb < 10mm ntawm 2x tsim load). Lub chaw haujlwm chaw nres nkoj tau tshaj tawm xoom qhov tsis ua haujlwm ntawm cov pile lossis teeb meem txheej. Womic Steel tau txais txiaj ntsig "Supplier Performance Excellence" los ntawm tus neeg cog lus dav dav (lub tuam txhab tsim kho vaj tse loj hauv Asmeskas). Lub davhlau ya nyob twg tam sim no ua haujlwm, tuav 1.5 lab TEU txhua xyoo.
Tiv tauj:
Lub Vas Sab: www.womicsteel.com
Email: sales@womicsteel.com
Xov tooj / WhatsApp / WeChat:
Victor: +86 15575100681
Nkaus: +86 18390957568
Womic Steel - Koj tus khub txhim khu kev qha rau ASTM A252 Qib 3 LSAW steel yeeb nkab piles rau choj foundations, marine piling, deep building foundations, thiab offshore wind farm monopiles thoob ntiaj teb.
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