ASTM A500 Qib C LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom

Kev Piav Qhia Luv:

Womic Steel muab cov yeeb nkab hlau ASTM A500 Qib C LSAW zoo rau cov qauv siv uas xav tau lub zog siab dua Qib B. Qib C muaj qhov tsawg kawg nkaus ntawm 345 MPa (50,000 psi) thiab qhov tsawg kawg nkaus ntawm 485 MPa (70,300 psi), ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev tsim cov kem, choj trusses, cov pej thuam kis, thiab cov khoom siv hnyav. Cov txheej txheem LSAW suav nrog JCOE, UOE, thiab dov phaj vuam txoj kev, xa cov seam ncaj nraim nrog kev ruaj khov zoo heev. Rau cov kav dej loj lossis phab ntsa hnyav (txog li 80mm phab ntsa tuab), Womic siv phaj dov thiab ntau-pass submerged arc vuam. Sab nraud txoj kab uas hla los ntawm 219mm txog 2,500mm (8″ - 98″), phab ntsa tuab los ntawm 5.0mm txog 80mm, ntev txog li 24m. Daim ntawv pov thawj zeb, 100% ultrasonic xeem (weld seam), beveled lossis tiaj tus kawg, thiab tiv thaiv xeb txheej (primer, epoxy, kub-dip galvanizing) muaj. Haum rau kev tsim cov thav duab, cov chords choj, crane booms, chaw ntau pob trusses, cov ceg ntawm lub pej thuam kis tau tus mob, cov qauv sab nraud ntawm ntug dej hiav txwv, thiab cov platform kev lag luam.

LSAW Hlau Yeeb Nkab Loj:Sab Nraud Txoj Kab uas hla: 219mm – 2,500mm (8″ – 98″), Phab Ntsa Thickness: 5.0mm – 80mm (JCOE/UOE siab tshaj 50.8mm, phaj dov siab tshaj 80mm), Ntev: 6m – 18m tus qauv, kev cai ntev txog li 24m

Tus Qauv & Qib ntawm LSAW Steel Pipe:ASTM A500 Qib B, Qib C; kuj ASTM A53 GR.B (cov ntawv thov kev tsim kho); ASTM A252 Qib 2, Qib 3 rau kev txhawb nqa

Kev siv LSAW Steel Pipe:Cov ncej thiab cov ntoo ntawm lub tsev, cov chords thiab diagonals ntawm tus choj, cov ceg ntawm lub tsev xa xov (lattice thiab monopole), cov crane booms thiab outriggers, cov ru tsev ntawm chaw ua si, cov modules sab nraud ntawm ntug dej hiav txwv, cov kev txhawb nqa platform hauv kev lag luam, cov thav duab khoom siv hnyav, cov paib thiab cov ncej teeb pom kev zoo, cov tswv cuab bracing hauv cov thav duab qauv.

Womic Steel muab cov khoom zoo thiab cov nqi sib tw ntawm ASTM A500 Qib C LSAW steel yeeb nkab, txias tsim welded structural tube, JCOE round structural tube, heavy wall structural tube. Mill daim ntawv pov thawj EN 10204 3.1, UT weld tshuaj xyuas, beveled/plain ends, anti-corrosion coating muaj. Lub Hoobkas ncaj qha muab rau kev tsim kho thiab engineering projects thoob ntiaj teb.

Xa email rau peb Cov Lus Qhia Txog Khoom

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

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 muaj peev xwm tsim cov kav dej ASTM A500 Qib C. A500 Qib C yog lub raj hlau carbon uas tau tsim los ntawm kev sib txuas ua ke txias ("txias tsim" txhais tau tias qhov kub thiab txias, tsis yog kev kho cua sov tom qab vuam). Cov txheej txheem LSAW zoo tagnrho rau cov kab sib dhos loj uas muaj qhov loj dua li lub peev xwm ntawm ERW lossis cov tshuab sib dhos.

●Kab JCOE:Rau cov txoj kab uas hla 406mm – 1,422mm (16″–56″), phab ntsa tuab txog li 50.8mm. Haum rau kev tsim cov kem thiab cov tswv cuab ntawm tus choj.

● Kab UOE:Rau cov txoj kab uas hla 508mm – 1,220mm (20″–48″), phab ntsa tuab txog li 40mm. Tsim cov hlau vaj tse uas nthuav tawm kom du thiab puag ncig.

● Phaj Dov (Ib Leeg Sib Dhos):Rau cov kab uas hla 600mm - 2,500mm (24″–98″), phab ntsa tuab ntawm 25mm txog 80mm. Zoo tagnrho rau cov kem phab ntsa hnyav thiab cov ceg ntawm lub pej thuam kis.

● Phaj dov (Ob chav sib txuas):Rau cov txoj kab uas hla 1,200mm - 2,500mm (48″–98″), phab ntsa tuab txog li 80mm.

Tag nrho cov peev xwm LSAW tshaj 300,000 tons txhua xyoo, nrog rau A500 Qib C ntau tshaj 80,000 tons ib xyoos. Womic Steel tuav ISO 9001, thiab tuaj yeem muab kev tshuaj xyuas thib peb los ntawm SGS, BV, TÜV. Txhiab tons ntawm A500 Qib C muab rau Asmeskas cov haujlwm tsim kho vaj tse (choj, chaw ua si, cov nroj tsuag kev lag luam).

Kev Yooj Yim Ntau Lawm rau A500 Qib C:

JCOE: 406–1,422mm OD × 5.0–50.8mm WT × ≤ 18m

UOE: 508–1,220mm OD × 5.0–40.0mm WT × ≤ 24m

Phaj dov (ib txoj kab sib txuas): 600–2,500mm OD × 25–80mm WT × ≤ 18m

Phaj dov (ob chav sib txuas): 1,200–2,500mm OD × 25–80mm WT × ≤ 18m

Cov kav dej tuaj yeem muab nrog cov txheej txheem primer (zinc-nplua nuj epoxy, 40-80 microns), liab qab (oiled), lossis kub-dip galvanized.

2. ASTM A500 Qib C: Cov Khoom Siv Sib xyaw & Cov yam ntxwv ua tau zoo

ASTM A500 Qib C yog qib muaj zog tshaj plaws hauv A500 cov lus qhia rau cov kav dej carbon steel uas ua los ntawm cov hlau txias. Qhov muaj zog tsawg kawg nkaus ntawm 345 MPa (50,000 psi) thiab lub zog tensile ntawm 485 MPa (70,300 psi). Nws muaj zog kwv yees li 25% dua li Qib B (qhov muaj zog 290 MPa, tensile 400 MPa). Qib C feem ntau yog teev rau cov ntawv thov hnyav.

Cov Tshuaj Lom Zem (qhov siab tshaj plaws % los ntawm pawg - ASTM A500 tsis yuam kom muaj kev txwv nruj, tab sis cov ntau yam ib txwm muaj):

Khoom	ASTM A500 Qib C (ntau yam)	Kev Tswj Xyuas Poj Niam
C	0.23 siab tshaj (feem ntau 0.20-0.23)	0.20-0.23
Mn	1.35 siab tshaj (feem ntau yog 1.10-1.30)	1.15-1.30
P	0.035 siab tshaj	≤ 0.030
S	0.035 siab tshaj	≤ 0.025
Si	0.30 siab tshaj (ib txwm)	0.15-0.30

Cov Khoom Siv Kho Tshuab (Chav Kub):

Vaj tse	ASTM A500 Qib C
Lub zog tawm los (min) rau cov kav dej puag ncig	345 MPa (50,000 psi)
Lub zog Tensile (min)	485 MPa (70,300 psi)
Kev ncua ntev (min) rau cov raj puag ncig - 50 hli gauge	21%
Kev ncua ntev (min) rau cov raj puag ncig - 200 hli ntsuas	13%

Kev sib piv nrog A500 Qib B thiab A53 GR.B:

Qib	Cov qoob loo MPa	Tensile MPa	Daim Ntawv Thov Ib Txwm Muaj
ASTM A53 GR.B	240	415	Cov qauv dav dav, lub zog qis
ASTM A500 Qib B	290	400	Nruab nrab lub zog qauv
ASTM A500 Qib C	345	485	Muaj zog heev, cov khoom hnyav

Qib C lub zog siab dua ua rau cov phab ntsa nyias dua lossis muaj peev xwm thauj khoom ntau dua piv rau Qib B.

3. Kev Ua Raws Li Qhov Ntev thiab Cov Qauv

Khoom	Cov Lus Qhia Tshwj Xeeb
Tus Qauv	ASTM A500 Qib B, Qib C
Cov Txheej Txheem Tsim Khoom	JCOE, UOE, phaj dov (ib leeg/ob leeg sib txuas)
Sab Nraud Txoj Kab uas hla	219mm – 2,500mm (8″ – 98″)
Phab ntsa tuab ntau yam	JCOE/UOE: 5.0mm – 50.8mm; Phaj dov: 25mm – 80mm
Qhov Ntev Ntau	Txheem: 6m, 12m, 18m; Ncua: txog li 24m
Xaus tiav	Plain End (PE), Beveled End (BE), los yog square cut
Qhov Chaw Tiav	Liab qab (oiled), Dub, Primer coated, Kub-dip galvanized
Kev kam rau siab (ASTM A500)	OD: ±0.5% rau qhov tseeb; WT: ±10%; Ntev: ±25 hli (rau kev txiav tus qauv)
Kev Ncaj Ncees	≤ 0.2% ntawm qhov ntev
Tsis yog puag ncig	≤ 2% (tus qauv qauv)

ASTM A500 qhov kev kam rau siab tsis nruj dua li API 5L, uas ua rau LSAW txoj kab uas hla loj dua pheej yig dua rau cov ntawv thov kev tsim kho.

4. Qhov Loj & Cov Lus Qhia Tshwj Xeeb - ASTM A500 Qib C 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	5.0, 6.0, 8.0, 10.0, 12.5	JCOE	26.4 – 63.6	12m	Lub tsev kem
273	6.0, 8.0, 10.0, 12.5, 14.0	JCOE	39.5 – 89.4	12m / 18m	Choj chord
324	8.0, 10.0, 12.5, 14.0, 16.0	JCOE	62.4 – 121.5	12m / 18m	Lub pej thuam kis tau hluav taws xob
406	8.0, 10.0, 12.5, 14.0, 16.0, 20.0	JCOE/UOE	78.5 – 190.4	12m / 18m	Crane boom
508	10.0, 12.5, 14.0, 16.0, 20.0, 25.0	UOE	122.8 – 297.8	12m / 18m / 24m	Lub tsev ua si
610	12.5, 14.0, 16.0, 20.0, 25.0, 30.0	UOE	184.2 – 429.1	12m / 18m	Kem hnyav
711	14.0, 16.0, 20.0, 25.0, 30.0, 35.0	JCOE/UOE	240.7 – 583.5	12m / 18m	Offshore topside
813	16.0, 20.0, 25.0, 30.0, 35.0, 40.0	JCOE	314.4 – 762.7	12m / 18m	Choj arch
914	20.0, 25.0, 30.0, 35.0, 40.0, 45.0	JCOE/Kuav	441.0 – 964.8	12m / 18m	Lub thav duab kev lag luam
1,016	20.0, 25.0, 30.0, 35.0, 40.0, 50.0	Dov	491.3 – 1,191.7	12m	Kev sib kis monopole
1,220	25.0, 30.0, 35.0, 40.0, 50.0, 60.0	Dov	736.5 – 1,716.9	12m	Kev lag luam hnyav
1,422	30.0, 35.0, 40.0, 50.0, 60.0, 70.0	Dov (ib leeg)	1,030 – 2,335	12m	Cov qauv loj heev
1,600	35.0, 40.0, 50.0, 60.0, 70.0, 80.0	Dov (ob npaug)	1,350 – 3,000	12m	Qhov project tshwj xeeb
2,000	40.0, 50.0, 60.0, 70.0, 80.0	Dov (ob npaug)	1,933 – 3,784	12m	Kev tsim vaj tsev
2,500	50.0, 60.0, 70.0, 80.0	Dov (ob npaug)	3,023 – 4,766	12m	Tseem Ceeb

Rau cov qauv hlau, qhov kev kam rau qhov ntev tsis nruj heev, ua rau muaj kev tsim khoom pheej yig dua. Rau cov hlau uas raug tso tawm, kev sib tsoo vuam thiab kev pleev xim primer yog qhov pom zoo.

5. Cov Qauv & Qib Sib Xws - Cov Hlab Hlau Sib Hloov (LSAW)

Tus Qauv	Cov Qib Hlau	Daim Ntawv Thov Ib Txwm Muaj	Cov Txheej Txheem Tsim
ASTM A500	Qib B, Qib C	Cov thav duab tsev, cov choj, cov pej thuam	JCOE/UOE/Kuav
ASTM A53	GR.B	Cov qauv dav dav, lub zog qis	JCOE
ASTM A252	Qib 2, Qib 3	Piling (kuj yog cov qauv)	JCOE/Kuav
EN 10219	S355JRH, S355J2H	Cov qauv European	JCOE/Kuav
CSA G40.21	350W, 350WT	Canadian kev tsim kho vaj tse	JCOE
AS/NZS 1163	C350L0, C450L0	Cov qauv tsim kho hauv tebchaws Australia	JCOE

Kev siv luv luv:Cov ncej tsev, cov tswv cuab ntawm tus choj truss, cov ceg ntawm lub pej thuam kis tau tus mob, crane booms, stadium ru tsev trusses, offshore topsides, thiab cov platforms kev lag luam.

6. Cov Txheej Txheem Tsim Khoom - LSAW rau ASTM A500 Qib C Cov Yeeb Nkab Qauv

Rau cov kev siv rau hauv cov qauv, qhov zoo ntawm qhov vuam yuav tsum zoo, tab sis qee zaum xav tau qhov zoo nkauj (qhov vuam du). Kev nthuav dav ntawm lub tshuab yog xaiv tau.

Txheej Txheem JCOE (406–1,422mm OD, 5.0–50.8mm WT):

● Kev tsim cov qauv JCO sib law liag

● Sab hauv thiab sab nraud SAW vuam

● Kev nthuav dav ntawm lub tshuab (xaiv tau - txhim kho qhov puag ncig rau cov qauv pom)

● Muaj kev sib tsoo vuam (ua tiav rau cov hlau uas raug nthuav tawm)

● Haum rau feem ntau ntawm cov ntu ntawm cov qauv

Cov Txheej Txheem UOE (508–1,220mm OD, 5.0–40mm WT):

● U-nias + O-nias nrog kev nthuav dav

● Tsim cov kav dej puag ncig heev - zoo rau cov ntawv thov kev tsim vaj tsev uas nthuav tawm

● Cov qauv vuam sib xws

Phaj Dov (Ib Leeg Sib Dhos) rau Phab Ntsa Hnyav (600–2,500mm OD, 25–80mm 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 - qhov ovality txog li 1-2% txais tau rau cov qauv

● Siv rau cov ncej phab ntsa hnyav thiab cov truss chords loj uas muaj txoj kab uas hla loj

Cov kev xaiv tiav tom qab vuam:

● Kev sib tsoo vuam:Rau cov hlau uas raug tsim los ntawm kev siv tshuab, peb zom cov hlau kom sib npaug.

● Txheej pleev xim thawj zaug:Cov txheej txheem epoxy nplua nuj zinc (40-80 microns) tus qauv rau kev tiv thaiv xeb.

● Kev kub-dip galvanizing:Muaj kev galvanizing yeeb nkab tag nrho (qhov ntev tshaj plaws 12.5m).

7. Kev Tswj Xyuas Zoo & Cov Txheej Txheem Ntsuas rau ASTM A500 Qib C LSAW Steel Pipe

Theem	Txoj Kev Tshuaj Xyuas	Lub Hom Phiaj
Phaj	Kev Tshuaj Xyuas Tshuaj	Xyuas kom meej tias ua raws li txoj cai (C, Mn, P, S txwv)
Phaj	Kev Ntsuas Tensile	Xyuas kom tseeb tias qhov tawm los ≥ 345 MPa, tensile ≥ 485 MPa
Nyob rau hauv-Txheej Txheem	Qhov Loj (OD, WT)	Xyuas kom ua raws li txoj cai
Weld seam	Kev Ntsuas Ultrasonic (100% rau cov qauv tseem ceeb, qhov chaw rau dav dav)	Tshawb nrhiav qhov tsis zoo ntawm vuam
Weld seam	Kev Ntsuas X-ray (qhov chaw - 5-10% thaum tus neeg siv khoom thov)	Qhov zoo ntawm vuam
Weld seam	Kev Tshuaj Xyuas Cov Khoom Sib Nqus (xaiv tau)	Kev kuaj pom qhov tawg ntawm qhov chaw
Cov yeeb nkab tiav lawm	Kev Ntsuas Flattening (yuav tsum muaj ib qho ASTM A500)	Lub cev yeeb nkab thiab qhov vuam ductility
Cov yeeb nkab tiav lawm	Kev Ntsuas Khoov Qhia (weld)	Kev vuam ductility
Cov yeeb nkab tiav lawm	Pom Kev & Qhov Loj	Qhov chaw, qhov ncaj, cim

Rau ASTM A500, kev sim ua kom tiaj tiaj yog qhov yuav tsum tau ua: ib ntu ntawm cov yeeb nkab raug tiaj tiaj mus rau 1/3 ntawm lub cheeb thawj (lossis kom vuam yog tias vuam nyob ntawm 90 ° txoj haujlwm). Tsis pub muaj kab nrib pleb lossis tawg.

8. Cov Ntawv Thov Tseem Ceeb - ASTM A500 Qib C LSAW Cov Yeeb Nkab Hlau

●Kev tsim cov kem- Cov tsev siab siab ntsug, cov kem cog kev lag luam

● Choj truss chords thiab diagonals- Cov choj arch, cov choj truss, cov choj neeg taug kev

● Cov ceg ntawm lub pej thuam kis tau hluav taws xob- Cov ceg ntawm lub tsev pheeb suab (ceg kaum sab xis nrog cov tswv cuab tubular), cov hauv paus monopole

● Crane booms thiab outriggers- Cov khoom siv ntawm cov mobile crane, cov masts ntawm lub pej thuam crane

● Cov trusses ntawm lub ru tsev ntawm chaw ua si- Cov trusses loj loj, cov thav duab chaw

● Cov modules sab saum toj ntawm Offshore- Cov ceg txhawb nqa ntawm lub lawj, txhawb nqa ntawm cov roj / roj platforms

● Kev txhawb nqa platform kev lag luam- Cov kav dej, cov khoom siv txhawb nqa, cov kem mezzanine

● Cov paib thiab cov ncej teeb pom kev zoo- Cov ncej puag ncig loj rau txoj kev loj thiab chaw ntau pob

● Cov thav duab khoom siv hnyav- Cov khoom siv ua vaj tse ntawm cov khoom siv tsuas

● Cov khoom siv txhawb nqa hauv cov thav duab- Diagonal bracing rau seismic tsis kam

9. Ntim & Xa Khoom - ASTM A500 Qib C LSAW Cov Yeeb Nkab Hlau

Ntim:

● Cov kab uas hla me me (≤ 610mm): Muab cov hlua hlau khi ua ke (5-10 tons ib pob) nrog cov tiv thaiv ntug

● Cov kav dej loj (> 610mm): Cov kav dej ib leeg nrog cov ntoo dunnage

● Cov kav dej uas nthuav tawm los ntawm kev tsim vaj tsev: Qhwv rau hauv zaj duab xis yas kom tiv thaiv cov xim pleev xim

● Lub hau kawg: Lub hau yas kom tiv thaiv cov khib nyiab nkag (yog tias xav tau rau kev ua tiav)

Kev Xa Khoom:

● Cov thawv rau cov qhov me me thiab cov qhov ntev luv (≤ 12m)

● Cov thoob khib nyiab loj rau cov kab uas hla loj (> 1,000 hli) thiab phab ntsa hnyav

● Cov khib tiaj tiaj rau cov kav dej ntev heev (txog li 24m)

● 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 (yog tias teev tseg), daim ntawv qhia kev sim ua kom tiaj tus, daim ntawv teev cov khoom ntim khoom, daim ntawv xa khoom lag luam, COO.

10. Cov txiaj ntsig ntawm Womic Steel & FAQ - ASTM A500 Qib C LSAW Steel Pipe

Vim li cas Womic Steel thiaj li siv ASTM A500 Qib C?

● Txoj kab uas hla loj txog li 2,500 hli (98″) - zoo tagnrho rau cov ncej hnyav thiab cov monopoles kis tau tus mob

● Phab ntsa hnyav txog li 80 hli - rau cov khoom siv hnyav

● Kev xaiv sib tsoo vuam rau cov hlau vaj tse uas tsis pom kev

● Muaj kev pleev xim thawj zaug thiab kev pleev xim kub-dip galvanizing

● Kev tshuaj xyuas los ntawm lwm tus neeg (SGS, BV, TÜV) tau txais

● Kev sib tw nqi rau cov haujlwm loj hauv kev tsim kho vaj tse

Cov Lus Nug Feem Ntau:

Q: Qhov txawv ntawm ASTM A500 Qib C thiab ASTM A53 GR.B rau cov yeeb nkab qauv yog dab tsi?
A: Qib C muaj zog dua: 345 MPa tawm los vs 240 MPa rau A53. Qib C kuj muaj kev kam rau siab dua thiab xav tau kev sim flattening. Rau cov kem thiab trusses uas muaj kev thauj khoom, Qib C yog qhov zoo dua. A53 GR.B yog qhov siv tau rau cov tswv cuab theem nrab thiab cov qauv tsis tseem ceeb.

Q: ASTM A500 puas xav tau kev sim kev cuam tshuam (Charpy)?
A: Tsis yog. ASTM A500 tsis yuam kom muaj kev sim Charpy impact. Txawm li cas los xij, rau cov ntawv thov kub qis (piv txwv li, Arctic, qee cov lej choj), cov engineers yuav ntxiv cov kev cai ntxiv. Womic tuaj yeem muab kev sim Charpy impact ntawm tus nqi ntxiv (feem ntau ntawm 0 ° C lossis -20 ° C) yog tias tau teev tseg.

Q: Koj puas tuaj yeem muab A500 Qib C nrog kub-dip galvanizing rau kev siv sab nraum zoov?
A: Yog. Peb muab kev kho galvanizing kub-dip raws li ASTM A123. Qhov ntev tshaj plaws rau peb lub dab dej galvanizing yog 12.5m. Yog tias cov kav dej ntev dua, peb tuaj yeem npaj kho galvanizing lossis siv lwm txoj hauv kev (zinc-rich epoxy). Thov qhia koj qhov ntev xav tau.

Q: Qhov ntev tshaj plaws uas koj tuaj yeem tsim tau rau A500 Qib C LSAW yeeb nkab yog dab tsi?
A: Qhov ntev tshaj plaws yog 18m (JCOE) lossis 24m (UOE) rau cov kab uas hla ≤ 1,220mm. Rau cov kab uas hla loj dua (phaj dov), qhov ntev tshaj plaws feem ntau yog 12-18m vim muaj kev txwv ntawm qhov loj ntawm phaj. Rau qhov ntev tshaj 18m, peb tuaj yeem vuam ntau ntu txij thaum pib mus txog thaum kawg (circumferential SAW welds). Tiv tauj peb nrog koj cov kev xav tau tshwj xeeb.

Q: Koj puas muab kev tshuaj xyuas sab nraud rau cov kav dej A500 Qib C?
A: Yog. Peb ua haujlwm nrog SGS, BV, TÜV, thiab lwm lub koom haum. Kev tshuaj xyuas tuaj yeem suav nrog kev pom thiab qhov ntev, kev sim flattening, UT lossis RT ntawm welds, thiab kev sim tshuaj lom neeg / tensile. Peb muab daim ntawv pov thawj EN 10204 Hom 3.1 ua tus qauv; Hom 3.2 muaj thaum thov.

Q: Lub sijhawm ua cov yeeb nkab A500 Qib C LSAW yog dab tsi?
A: Lub sijhawm ua tus qauv: 30-45 hnub rau JCOE/UOE qhov ntau thiab tsawg. Rau cov phab ntsa hnyav dov (> 50 hli): 45-60 hnub. Rau kev kub-dip galvanizing: ntxiv 1-2 lub lis piam. Rau kev sib tsoo weld (kev ua tiav architectural): ntxiv 2 lub lis piam.

Cov Qauv Siv - Los Angeles Stadium Transmission Tower Structures (Tebchaws USA)

Lub Tebchaws:Tebchaws Meskas (Inglewood, California - thaj chaw SoFi Stadium)
Tus Qauv & Qib:ASTM A500 Qib C (nrog rau kev cuam tshuam Charpy ntxiv ntawm 0 ° C)
Qhov Loj & Qhov Ntau:

OD 610mm (24″) × WT 16.0mm – 2,400 meters (kwv yees li 560 tons) tsim los ntawm UOE txheej txheem

OD 813mm (32″) × WT 20.0mm – 1,800 meters (kwv yees li 700 tons) tsim los ntawm JCOE txheej txheem

OD 1,016mm (40″) × WT 25.0mm – 900 meters (kwv yees li 550 tons) tsim los ntawm cov phaj dov ib leeg

OD 1,220mm (48″) × WT 30.0mm – 600 meters (kwv yees li 530 tons) tsim los ntawm cov phaj dov ib leeg
Tag Nrho:5,700 meters (5.7 km), kwv yees li 2,340 tons

Cov Lus Qhia:Cov kawg tiaj tiaj nrog chamfer (rau kev vuam taub qab), lub hau vuam av flush (qhov yuav tsum tau ua kom pom tseeb), zinc-nplua nuj epoxy primer txheej (60 microns). Yuav tsum tau kuaj flattening (tsis muaj kab nrib pleb ntawm 1/3 txoj kab uas hla flattening). Kev kuaj khoov qhia rau qhov vuam ductility. 100% UT ntawm weld seam. Charpy cuam tshuam ntawm 0 ° C (yam tsawg kawg nkaus 27J, ua tiav 60-90J). Kev ncaj ≤ 0.15% (nruj dua li tus qauv A500). Kev tshuaj xyuas sab nraud los ntawm SGS USA.

Daim Ntawv Thov:Cov qauv tsev xa hluav taws xob zoo nkauj thiab ua haujlwm tau zoo nyob ib puag ncig SoFi Stadium thiab Hollywood Park txoj kev loj hlob hauv Los Angeles. Cov kav dej LSAW ua haujlwm ua cov ncej ntsug tseem ceeb thiab cov kab pheeb ces kaum rau cov tsev xa hluav taws xob loj "super" (kwv yees li 60m qhov siab) uas txhawb nqa cov paib, teeb pom kev zoo, thiab tseem ua haujlwm ua cov cim qhia txog kev tsim vaj tsev. Qhov project xav tau cov hlau uas raug nthuav tawm nrog cov vuam du thiab zoo li qub.

Cov Kev Sib Tw thiab Kev Dais Teeb Meem:

● Cov hlau uas raug tsim los ntawm kev sib txhuam thiab ua kom tiav– Cov pej thuam pom tau los ntawm lub chaw ntau pob thiab thaj chaw ib puag ncig. Womic ua qhov kev sib tsoo vuam tsis siv neeg ua raws li kev ua tiav tes kom ua tiav qhov chaw du (Ra ≤ 6.3μm). Peb kuj tau siv cov txheej txheem primer sib xws (epoxy nplua nuj zinc, xim grey teeb uas tus kws kes duab vajtse teev tseg). Txhua lub yeeb nkab tau kuaj xyuas qhov du ntawm vuam los ntawm pab pawg QA ntawm tus neeg siv khoom.

● Cov kev cai ntawm thaj chaw av qeeg - kev ywj pheej thiab kev tawv– Los Angeles nyob rau hauv Seismic Design Category D (muaj kev pheej hmoo siab ntawm av qeeg). ASTM A500 Qib C feem ntau tsis tas yuav tsum tau kuaj kev cuam tshuam. Tus kws ua vaj tse ntxiv Charpy impact requirement ntawm 27J ntawm 0°C. Womic xaiv cov phaj nrog cov pa roj carbon tswj (0.20-0.22%) thiab manganese (1.15-1.25%) thiab ua tiav 60-90J ntawm 0°C, zoo dua qhov yuav tsum tau ua.

●Cov ntu loj uas muaj cov kab uas sib txuas– Qee cov ceg ntawm lub tsev pheeb suab tau tapered (zoo li lub khob hliav qab). Womic tau muab cov kav dej ncaj uas tom qab ntawd tau tsim los ntawm tus neeg cog lus ua cov ntu tapered. Peb tau muab kev tswj hwm qhov ovality nruj (≤ 0.5%) los pab txhawb cov txheej txheem tapering. Cov kav dej tau cim nrog cov kab kev taw qhia kom ntseeg tau tias muaj kev vuam sib xws.

●Txheej txheem primer rau ib puag ncig ntug dej hiav txwv– SoFi Stadium nyob 5 km ntawm Dej Hiav Txwv Pacific, nrog rau kev txau ntsev. Cov xim pleev epoxy nplua nuj zinc (60 microns) tau siv rau txhua lub kav dej. Kev txheej txheem dhau 1,000 teev kev sim txau ntsev (ASTM B117) nrog tsawg dua 2 hli nkag los ntawm tus sau. Kev kuaj pom hnub so ntawm 2kV nrog xoom qhov tsis ua haujlwm.

●Kev xa khoom mus rau qhov chaw tsim kho uas siv tau– Kev tsim kho Hollywood Park yog ib qho ntawm cov haujlwm tsim kho hauv nroog loj tshaj plaws hauv Tebchaws Meskas. Kev xa khoom ntawm 2,340 tons ntawm cov kav dej loj uas yuav tsum tau ua tiav. Womic tau xa cov kav dej hauv 6 qhov kev xa khoom dhau 8 lub hlis, txhua qhov teem sijhawm tuaj txog ua ntej kev teeb tsa. Cov kav dej tau xa los ntawm Shanghai mus rau Chaw nres nkoj ntawm Los Angeles, tom qab ntawd thauj khoom 8 km mus rau qhov chaw. Peb siv cov thawv tiaj tiaj rau cov kav dej 1,016mm thiab 1,220mm kom tsis txhob puas tsuaj.

●Tebchaws Meskas Yuav Khoom Asmeskas cov kev cai– Qhov project xav tau kev zam rau cov hlau txawv teb chaws vim tias cov chaw tsim khoom hauv Tebchaws Meskas tsis tuaj yeem tsim cov hlau loj (1,220mm) hauv qhov tuab ntawm phab ntsa uas xav tau hauv lub sijhawm teem tseg. Womic tau muab cov ntaub ntawv tag nrho suav nrog daim ntawv pov thawj ntawm chaw tsim khoom, lub tebchaws keeb kwm, thiab kev taug qab cov khoom siv. Tus tswv tau pom zoo rau daim ntawv zam.

●Qhov Tshwm Sim:Cov qauv tsev xa hluav taws xob tau ua tiav rau xyoo 2022. Lawv tau dhau los ua ib qho tseem ceeb ntawm SoFi Stadium complex. Tus neeg cog lus tau tshaj tawm tias txhua lub kav dej LSAW haum zoo kawg nkaus yam tsis muaj kev kho dua tshiab. Cov hlau tiav uas raug nthuav tawm tau txais kev qhuas los ntawm tus kws kes duab vajtse. Txij li thaum ntawd los Womic Steel tau raug caw tuaj twv rau cov haujlwm hlau tsim vaj tsev ntxiv hauv Tebchaws Meskas.

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Womic Steel - Koj tus khub txhim khu kev qha rau ASTM A500 Qib C LSAW cov kav hlau rau kev tsim cov kem, cov choj trusses, cov pej thuam kis, thiab cov ntawv thov hnyav thoob ntiaj teb.

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