Tiv tauj peb kom tau txais Cov Lus Qhia Tshwj Xeeb thiab Qhov Loj ntawm Cov Yeeb Nkab Hlau Tshiab.
ASTM A252 Qib 1/2/3 LSAW Cov Yeeb Nkab Hlau | OD 508-1422mm Loj Txoj Kab uas hla Lub Hauv Paus Cov Yeeb Nkab Hlau
| Cov Khoom Siv Txheem | ASTM A252 Qib 1, Qib 2, Qib 3 |
| Lub Zog Tawm | ≥207 MPa |
| Qhov Loj / Loj | Txoj kab uas hla sab nraud: 219 hli - 3000 hli (kho tau) |
| Phab ntsa tuab | 6 hli - 40 hli (kho tau) |
| Ntev | Tshuag rau 6 m & 12 m; Qhov Ntev Tshwj Xeeb Muaj |
| Hom Yeeb Nkab / Vuam | LSAW (Longitudinal SAW / EFW) |
| Kev kam rau siab ntawm qhov ntev | Ua raws li ASTM A252 |
| Daim Ntawv Pov Thawj Zoo | ISO 9001; SGS / BV Daim Ntawv Qhia Txog Kev Tshuaj Xyuas Sab Nraud Muaj |
| Qhov Chaw Tiav | Dub, Kub-Dip Galvanized, Pleev xim, lossis Kev Cai Txheej |
| Cov ntawv thov | Kev tsim cov hauv paus, cov choj, cov chaw nres nkoj, cov chaw ua liaj ua teb cua hauv hiav txwv thiab ntug dej hiav txwv, cov haujlwm tsim kho vaj tse hnyav |
Cov Ntaub Ntawv Txog Kev Siv
ASTM A252 Cov Yeeb Nkab HlauCov Tshuaj Lom Zem
| Khoom | Cov ntsiab lus (%) |
| Cov pa roj carbon (C) | 0.26 siab tshaj |
| Manganese (Mn) | 0.85 – 1.60 |
| Phosphorus (P) | 0.04 siab tshaj |
| Sulfur (S) | 0.05 siab tshaj |
| Silicon (Si) | 0.10 – 0.35 |
| Tooj liab (Cu) | 0.20 - 0.30 (xaiv tau rau kev tiv thaiv xeb) |
ASTM A252 Cov Yeeb Nkab HlauKhoom Siv Kho Tshuab
| Vaj tse | Qhov Yuav Tsum Tau Ua / Tus Nqi |
| Lub Zog Tawm (Min) | 207 MPa (30 ksi) |
| Lub zog tensile | 345 – 455 MPa (50-66 ksi) |
| Kev ntev (hauv 200 hli) | ≥20% |
| Kev Ntsuas Kev Cuam Tshuam (Charpy V-Notch) | Tsis tas yuav tsum muaj rau txhua qhov loj me; xaiv tau rau qhov kub qis lossis cov haujlwm hauv hiav txwv |
| Qhov nyuaj | Brinell ib txwm muaj: 110–180 HB |
| Vaj tse | Qib 1 | Qib 2 | Qib 3 |
| Lub Zog Tsawg Kawg Nkaus | 30,000 psi (207 MPa) | 35,000 psi (241 MPa) | 45,000 psi (310 MPa) |
| Lub Zog Tensile Yam Tsawg Kawg Nkaus | 50,000 psi (345 MPa) | 60,000 psi (415 MPa) | 66,000 psi (455 MPa) |
| Yam tsawg kawg nkaus Elongation (2-nti gauge) | 18% | 14% | 20% |
ASTM A252 Yeeb NkabQhov Loj
| Cov Lus Qhia Txog Kev Xa Khoom Mus Rau Lwm Lub Tebchaws (Qib 3 Nrov Tshaj Plaws) | |||||
| NPS | OD (hli) | Phab ntsa tuab | Qhov hnyav (kg/m2) | Lub Sijhawm Ib Txwm Muaj | Daim Ntawv Thov Tseem Ceeb |
| 16" | 406.4 | 0.375" (9.52mm) | 92.5 | Kab mob sib kis | Chaw nres nkoj, kev tsim kho dav dav |
| 16" | 406.4 | 0.500" (12.70 hli) | 121.8 | 40 | Lub hauv paus cua ntawm ntug dej hiav txwv, cov choj txuas |
| 18" | 457 | 0.500" (12.70 hli) | 137.4 | 40 | Cov qauv kev lag luam hnyav, cov hauv paus tob |
| 24" | 609.6 | 0.500" (12.70 hli) | 183.2 | 40 | Cov pawg loj uas muaj txoj kab uas hla loj, cov qauv dej hiav txwv |
| 24" | 609.6 | 0.750" (19.05mm) | 271.8 | XS | Cov ntawv thov thauj khoom hnyav heev, tsav tsheb pob zeb |
| 30" | 762 | 0.625" (15.88mm) | 287.5 | 40 | Cov platforms offshore, LNG terminal foundations |
| 36" | 914.4 | 0.750" (19.05mm) | 392.3 | 40 | Cov phiaj xwm loj, cov choj hla dej hiav txwv |
| Cov Txheej Txheem Tsim Khoom vs. Qhov Loj Muaj Peev Xwm | |||||
| Txheej Txheem | Qhov siab tshaj plaws OD (hli) | Qhov hnyav siab tshaj plaws (hli) | Qhov Ntev Ntau (m) | Kev Siv Nyiaj Zoo | Zoo Tshaj Plaws Rau |
| SSAW (Kauv) | 3200 | 30 | 6-18 | Qhov siab tshaj plaws | Txoj kab uas hla loj, phab ntsa nruab nrab tuab (16 "-48") |
| LSAW (JCOE) | 1422 | 50 | 6-15 | Siab | Phab ntsa tuab heev (≥1.0 "), qhov yuav tsum muaj zog siab |
| ERW | 660 | 25 | 6-12 | Nruab Nrab | Me me mus rau nruab nrab txoj kab uas hla, txheem phab ntsa tuab |
Nyem lub pob ntawm sab xis
1. Kev Tsim Lub Hauv Paus (Cov Txheej Txheem Lub Hauv Paus Sib Sib)
Siv ua cov ncej hauv paus tob rau cov tsev siab, cov chaw tsim khoom lag luam, cov chaw khaws khoom xa tuaj, cov chaw lag luam, thiab cov qauv vaj tse nyob. Cov ncej yeeb nkab hlau no muab lub peev xwm thauj khoom ntsug zoo thiab ua kom muaj kev ruaj khov mus sij hawm ntev hauv cov av tsis muaj zog lossis mos.
2. Kev Tsim Kho Choj
Zoo tagnrho rau cov choj loj, cov choj tsheb ciav hlau, cov kev hauv nroog, thiab cov qauv hla kev.ASTM A252 LSAW / EFW steel pilessiv dav hauv kev hla dej, hla pas dej, thiab hla dej hiav txwv, muab kev tiv taus zoo heev rau cov khoom thauj dynamic thiab kev txav av.
3. Kev Tsim Kho Chaw Nres Nkoj thiab Kev Ua Haujlwm Hauv Dej Hiav Txwv
Siv rau hauv cov chaw nres nkoj, cov chaw ntim khoom, cov chaw nres nkoj, cov chaw nres nkoj, thiab cov chaw thauj khoom hauv hiav txwv. Cov yeeb nkab hlau no yog tsim los txhawb cov cranes hnyav, cov tshuab thauj khoom, thiab cov chaw tsim kho hauv hiav txwv loj nrog kev ruaj khov siab hauv cov chaw ntug dej hiav txwv uas muaj xeb.
4. Lub zog cua hauv hiav txwv thiab Kev tsim kho dej hiav txwv
Siv dav hauv cov hauv paus cua turbine offshore, offshore platforms, marine pipelines, seawalls, thiab coastal protection structures. LubLSAW yeeb nkab hlauCov pawg muab kev tiv thaiv zoo heev rau kev cuam tshuam ntawm nthwv dej, lub zog tidal, thiab kev xeb ntawm dej hiav txwv, ua rau lawv tsim nyog rau cov chaw nyob hauv hiav txwv uas hnyav.
5. Cov Haujlwm Tsim Kho Vaj Tse Loj
Siv rau hauv cov pas dej, cov chaw nres tsheb hauv av, cov qhov av, cov qauv ruaj khov, thiab cov haujlwm loj uas xav tau kev txhawb nqa tob. Cov ncej no muaj peev xwm nqa cov khoom siv hauv kev lag luam hnyav thiab cov xwm txheej nyuaj ntawm cov qauv.
1) Chaw Ua Haujlwm Ceg - Kev txhawb nqa hais lus Mev, kev pab tshem tawm kev lis kev cai, thiab lwm yam.
2) Muaj ntau tshaj 5,000 tons ntawm cov khoom hauv Tshuag, nrog ntau yam ntau thiab tsawg
3) Tshawb xyuas los ntawm cov koom haum muaj cai xws li CCIC, SGS, BV, thiab TUV, nrog rau cov ntim khoom seaworthy txheem
1 Ntim:Cov hlau banding rau kev yooj yim tuav. Cov ntoo blocks lossis dunnage muab tso rau nruab nrab ntawm cov pawg kom tsis txhob muaj kev hloov pauv ntawm lub cev thaum lub sijhawm thauj mus los. Kev kho qhov chaw (xaiv tau): Pleev xim dub, roj tiv thaiv xeb, zaj duab xis yas. Cov pawg galvanized kub-dip yuav raug coated nrog zaj duab xis tiv thaiv ib ntus kom tsis txhob khawb rau ntawm qhov chaw. Kev ntim khoom raws li qhov xav tau tuaj yeem muab tau.
2 Kev Xa Khoom:Cov khoom lag luam ntev: 6m, 12m. Muaj ntau qhov ntev raws li koj xav tau. Los nrog Hiav Txwv Rail thiab Txoj Kev Siv Tau Haum rau kev thauj mus los hauv hiav txwv, tsheb ciav hlau lossis kev thauj mus los ntawm txoj kev. Lub sijhawm xa khoom feem ntau yog 15-30 hnub thaum tau txais kev them nyiaj, nyob ntawm seb muaj pes tsawg thiab qhov tshwj xeeb. Haum rau kev xa tawm thoob ntiaj teb, nrog rau daim ntawv pov thawj tiav (daim ntawv pov thawj tshuaj xyuas, daim ntawv teev cov khoom ntim khoom, daim ntawv them nqi).
3 Cov Lus Ceeb Toom Txog Kev Siv:Tsis txhob siv cov hlua khi lossis cov hlua khi uas tsis muaj cov ntaub qhwv los ua ncaj qha rau ntawm qhov chaw ntawm cov yeeb nkab kom tsis txhob ua rau cov yeeb nkab puas. Khaws cia rau qhov chaw txias, qhuav thiab muaj cua nkag tau zoo, tsis txhob xeb ua ntej teeb tsa. Cov khoom xa tuaj ntau dhau thiab hnyav dhau thov ua raws li cov cai xa khoom hauv zos.
1. ASTM A252 Qib 3 cov yeeb nkab hlau siv?
ASTM A252 Qib 3 LSAW cov kav hlau feem ntau yog siv rau kev sib sib zog nqus hauv kev tsim kho, xws li cov tsev, choj, chaw nres nkoj, ntug dej hiav txwv thiab lwm yam.
2. Qib 1, Qib 2 thiab Qib 3 txawv li cas?
Nws muaj lub zog thiab ruaj khov zoo tshaj plaws ntawm 3 qib, yog li nws zoo tagnrho rau cov hauv paus hnyav, thiab kev tsim kho hauv hiav txwv.
3. Yog dab tsiLSAW hlau raj?
Hloov kho los ntawm kev paub txog cov hlau, LSAW yeeb nkab yog cov yeeb nkab khoom uas tsim los ntawm kev tsim thiab vuam cov hlau phaj ntev, uas tseem hu ua "longitudinal weld steel yeeb nkab".
4. Muaj qhov loj thiab tuab li cas?
Cov kab uas hla 2 muaj nyob rau hauv qhov loj me ntawm OD 406 hli txog 2500 hli thiab phab ntsa tuab ntawm 6 hli txog 60 hli siv rau kev tsim kho hauv paus hnyav thiab kev tsim kho hauv hiav txwv.
5. Puas siv tau rau hauv cov dej hiav txwv thiab cov dej hiav txwv?
Yog. Nws feem ntau siv rau hauv lub zog cua hauv hiav txwv, phab ntsa dej hiav txwv, chaw nres nkoj, thiab cov chaw nres nkoj hauv dej hiav txwv, thiab lwm yam. Nws muaj cov txheej txheem suav nrog epoxy, 3PE, cement mortar rau kev tiv thaiv xeb.
Cov Ntaub Ntawv Tiv Tauj
Chaw Nyob
Kangsheng kev lag luam tsim kho cheeb tsam,
Wuqing koog tsev kawm ntawv, Tianjin nroog, Suav.
Xov tooj
Teev
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