ASTM A671 CC65 CL22 EFW Cov Yeeb Nkab Hlau: Kev Tsim Khoom & Cov Lus Qhia Tshwj Xeeb

Kev Piav Qhia Luv:

Womic Steelmuab ASTM A671 CC65 CL22 hluav taws xob-fusion-welded (EFW) cov yeeb nkab hlau rau qhov kub qis thiab qhov kub thiab txias. CC65 yog los ntawm A516 Gr.65 lub phaj siab. Chav Kawm 22 qhia txog kev kho cua sov uas txo kev ntxhov siab, kev kuaj xyuas radiographic ntawm cov kab sib txuas, thiab kev sim hydrostatic. Kev sib xyaw ua ke no tau teev tseg qhov twg xav tau kev tawv ntawm qhov kub qis nrog rau kev txheeb xyuas kev sib txuas tag nrho.

Xa email rau peb Cov Lus Qhia Txog Khoom

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Kev piav qhia txog khoom

Cov lus tseem ceeb uas siv rau hauv nplooj ntawv no: ASTM A671 CC65 CL22, A671 CC65 yeeb nkab, EFW yeeb nkab hlau CC65, EFW yeeb nkab kub qis, A516 Gr.65 yeeb nkab vuam, kev ntxhov siab txo cov yeeb nkab EFW, ASTM A671 Chav Kawm 22, A671 CC65 vs CC60, A671 ib txoj kab ncaj vs ob txoj kab ncaj.

ASTM A671 CC65 CL22 Txhais Li Cas

ASTM A671 suav nrog cov yeeb nkab hlau fais fab-fusion-welded nrog cov hlau ntxiv, ua los ntawm cov phaj siab, uas yog rau kev pabcuam siab ntawm huab cua thiab qis dua. Lub npe faib ua peb ntu.

Qib CC65qhia txog lub phaj hauv paus. CC65 sib raug rau ASTM A516 Gr.65 phaj, uas yog cov hlau carbon uas raug tua, zoo-grain siv rau hauv kev tsim cov hlab siab. Cov tshuaj lom neeg thiab cov khoom siv kho tshuab ntawm cov yeeb nkab tiav lawm ua raws li cov lus qhia ntawm lub phaj hauv paus.

Chav Kawm 22Txhais kev kho cua sov thiab kev sim. Chav Kawm 22 xav tau kev txo kev ntxhov siab tom qab vuam, kev kuaj xyuas radiographic ntawm cov kab sib txuas ntev, thiab kev sim hydrostatic ntawm cov yeeb nkab tiav. Nws nyob saum cov chav kawm as-welded (10, 12) thiab qis dua normalized (32) lossis quenched-and-tempered (42/52) chav kawm.

EFWqhia txog txoj kev tsim khoom: lub phaj yog tsim rau hauv lub cylindrical zoo li, thiab cov seam longitudinal yog welded siv cov txheej txheem hluav taws xob fusion nrog cov hlau filler. Qhov no txawv ntawm ERW yeeb nkab, uas tsis siv cov hlau filler thiab vam khom rau cua sov tiv thaiv kom forge cov npoo ua ke.

Cov Khoom Siv Tshuaj thiab Khoom Siv Kho Tshuab

Vim tias CC65 khi rau A516 Gr.65 phaj, cov yeeb nkab tiav lawm cov tshuaj lom neeg thiab lub zog ua raws li tus qauv phaj ntawd. Cov nqi ib txwm muaj:

Vaj tse	Tus nqi ib txwm muaj
Cov pa roj carbon (siab tshaj plaws)	0.24%
Manganese	0.85–1.20%
Silicon	0.15–0.40%
Phosphorus (max)	0.025%
Sulfur (max)	0.025%
Lub Zog Tawm (min)	240 MPa
Lub zog tensile	450–585 MPa

Cov txiaj ntsig xeem tiag tiag ntawm daim ntawv pov thawj zeb qhia txog qhov kub tshwj xeeb thiab phaj siv. Chav kawm 22 kev txo kev ntxhov siab tsis hloov pauv cov tshuaj lom neeg hauv paus.

Kev Sib Piv Qib: CC60 vs CC65 vs CC70

Cov neeg yuav khoom uas tab tom nrhiav CC65 feem ntau piv rau cov qib sib ze hauv tib A671 CC series. Peb qib sib koom tib txoj kev tsim khoom thiab cov kev xaiv Class 22; qhov sib txawv yog qib zog ntawm lub hauv paus phaj.

Qib	Phaj Pib	Yam Tsawg Kawg Nkaus Tau Los	Qhov ntau ntawm Tensile	Kev Siv Ib Txwm Muaj
CC60	A516 Qib 60	220 MPa	415–585 MPa	Qhov siab qis dua, qhov kub nruab nrab
CC65	A516 Qib 65	240 MPa	450–585 MPa	Kev pabcuam siab kub qis dav dav
CC70	A516 Qib 70	260 MPa	485–620 MPa	Siab dua, phab ntsa tuab dua

Rau ib qho kev tsim siab thiab kub, qhov kev ntxhov siab uas tso cai nce ntxiv ntawm CC60 mus rau CC70, uas tuaj yeem tso cai rau phab ntsa nyias dua lossis qhov ntsuas siab dua. Kev xaiv nyob ntawm cov lus qhia kev ntxhov siab uas tso cai ntawm cov lej tsim ntawm qhov kub ua haujlwm.

Chav Kawm 22 vs Lwm Chav Kawm A671

Feem ntau cov neeg yuav khoom yuav nug tias Class 22 muaj dab tsi ntxiv rau Class 10 lossis 12, thiab Class 32 muaj dab tsi ntxiv rau qhov ntawd. Cov lus hauv qab no qhia txog qhov sib txawv tseem ceeb.

Chav Kawm	Kev Kho Mob Kub	Kev thaij duab hluav taws xob	Kev kuaj dej	Cov Lus Qhia Tshwj Xeeb
10	Tsis muaj dab tsi	Tsis muaj dab tsi	Yog	Raws li-welded, tsis yog qhov tseem ceeb kev pabcuam
12	Tsis muaj dab tsi	Chaw RT	Yog	Raws li-welded, kev pabcuam nruab nrab
22	Kev Nyuaj Siab Txo	Tag Nrho RT	Yog	Kev pabcuam siab qis-kub
32	Ua kom zoo li qub	Tag Nrho RT	Yog	Kev thov kom muaj zog dua
42	Normalized + Tempered	Tag Nrho RT	Yog	Kev pabcuam hnyav

Chav Kawm 22 yog qhov kev xaiv uas siv ntau thaum cov yeeb nkab yuav pom qhov kub tsawg lossis qhov kub ntawm cov txheej txheem thiab qhov sib txuas ntawm cov xov yuav tsum tau kuaj xyuas tag nrho. Chav Kawm 32 yog teev tseg thaum tus qauv tsim xav tau cov khoom phaj zoo li qub hauv cov yeeb nkab tiav lawm. Chav Kawm 42/52 yog tseg rau kev sib xyaw ua ke ntawm cov tawv lossis cov tuab.

Qhov Loj thiab Kev Xaiv Tsim Khoom

Womic tsim cov yeeb nkab A671 CC65 CL22 siv LSAW (longitudinal submerged arc welding) nrog rau ib txoj kab ncaj lossis ob txoj kab ncaj, nyob ntawm seb lub cheeb thiab phab ntsa tuab li cas.

Cov Qauv	Ntau yam
Sab Nraud Txoj Kab uas hla	16″ txog 100″ (400 mm txog 2,540 mm)
Phab ntsa tuab	6 hli mus txog 80 hli (hnyav dua raws li qhov thov)
Ntev	6 m, 12 m tus qauv; txog li 18 m lossis 24 m yog tias thov
Txoj Kev Tsim Khoom	EFW / LSAW nrog cov hlau sau
Hom Seam	Ib txoj kab ncaj nraim los yog ob txoj kab ncaj nraim

ASTM A671 nominally npog cov yeeb nkab uas muaj 16 nti (400 mm) sab nraud txoj kab uas hla thiab loj dua nrog phab ntsa tuab ntawm 1/4 nti (6 mm) lossis ntau dua. Cov yeeb nkab sab nraud ntawm qhov ntau no tuaj yeem muab tau yog tias nws ua tau raws li txhua yam kev cai ntawm cov lus qhia.

Ib Txoj Kab Ncaj vs Ob Txoj Kab Ncaj

Qhov kev xaiv ntawm ib txoj kab ncaj thiab ob txoj kab ncaj yog tsav los ntawm txoj kab uas hla thiab phab ntsa tuab piv rau qhov dav ntawm lub phaj.

Ib txoj kab ncaj nraimsiv thaum ib lub phaj tuaj yeem dov mus rau hauv lub tog raj kheej puv. Ntawm Womic qhov no npog OD txog li 1,422 hli nrog phab ntsa tuab txog li 50.8 hli ntawm kab JCOE. Muaj ib qho vuam ntev, yog li kev tshuaj xyuas vuam yog tsom mus rau ib qho seam, thiab kev tsim khoom pheej yig dua rau cov qhov loj me.

Ob chav ncaj seamsiv thaum lub cheeb lossis phab ntsa tuab tshaj qhov uas ib lub phaj tuaj yeem tsim tau. Ob lub phaj raug dov ua ib nrab-lub tog raj kheej thiab txhua lub vuam ntev. Qhov no npog OD txij li ntawm 1,200 hli txog 2,540 hli nrog phab ntsa tuab txog li 80 hli. Qhov kev pauv pauv yog ob lub vuam seams los tshuaj xyuas thiab ntau lub sijhawm vuam, tab sis nws ua rau cov yeeb nkab loj thiab phab ntsa hnyav uas ib lub seams tsis tuaj yeem tsim tau.

Rau ib qho project, lub zeb xaiv qhov kev teeb tsa ntawm cov xov raws li qhov loj me uas tau xaj. Yog tias qhov kev qhia tshwj xeeb ntawm project txwv tsis pub siv hom xov, sau qhov no hauv daim ntawv xaj yuav khoom.

Kev vuam thiab kev kho cua sov

Cov kab sib txuas ntev yog welded los ntawm ntau txoj hlua submerged arc welding, nrog ib qho hla sab hauv thiab ib lossis ntau qhov hla sab nraud. Cov hlau filler thiab flux raug xaiv los phim A516 Gr.65 hlau puag thiab los tsim cov hlau weld nrog chemistry thiab toughness sib xws nrog lub phaj. Tom qab welding, cov yeeb nkab raug kev ntxhov siab raws li Chav Kawm 22 qhov yuav tsum tau ua: cua sov sib npaug rau qhov kub qis dua qhov tseem ceeb, tuav rau lub sijhawm sib npaug rau phab ntsa tuab, thiab txias hauv txoj kev tswj hwm.

Rau cov haujlwm uas xav tau kev sim kev cuam tshuam, kev sim Charpy V-notch tuaj yeem teev tseg ua qhov yuav tsum tau ua ntxiv, txawm tias ntawm theem phaj lossis ntawm cov yeeb nkab tiav lawm.

Kev Xeem Qib 22 Muaj Dab Tsi

Kev Txo Kev Nyuaj SiabTom qab vuam, cov yeeb nkab raug cua sov rau qhov kub qis dua qhov tseem ceeb thiab tuav kom txo cov kev ntxhov siab seem los ntawm kev tsim thiab vuam. Qhov no tseem ceeb rau cov yeeb nkab uas yuav raug tsim ntxiv lossis raug rau kev hloov pauv thermal hauv kev pabcuam.

Kev Tshuaj Xyuas X-ray: Qhov txuas ntawm qhov txuas ntev raug kuaj xyuas los ntawm X-ray lossis gamma ray kom pom cov qhov tsis zoo sab hauv xws li porosity, slag inclusion, lossis tsis muaj fusion. Qhov dav ntawm radiography ua raws li A671 qhov yuav tsum tau ua rau Chav Kawm 22.

Kev Ntsuas HydrostaticTxhua lub yeeb nkab raug ntim dej thiab muab siab rau qib uas txiav txim siab los ntawm qhov tuab thiab txoj kab uas hla ntawm phab ntsa uas tau teev tseg, tuav rau lub sijhawm teev tseg, thiab tshuaj xyuas seb puas muaj qhov xau lossis puas hloov pauv mus tas li.

Cov kev cai ntxiv hauv ASTM A671 tuaj yeem siv rau kev sim kev cuam tshuam, kev thaij duab ntxiv, lossis lwm yam kev kuaj xyuas thaum qhov project xav tau ntau dua li qhov Class 22.

Cov ntawv thov rau A671 CC65 CL22 Yeeb Nkab

Cov kav dej ua haujlwm kub tsawghauv cov chaw ua lag luam petrochemical thiab LNG qhov twg qhov kub ntawm cov kua dej poob qis dua qhov chaw ib puag ncig tab sis tsis xav tau qib qis dua

Cov kav dej fais fabrau cov dej txias, cov dej noo, thiab cov dej pub uas qhov kev tswj siab thiab qhov zoo ntawm vuam yog qhov tseem ceeb

Chaw nres tsheb compressor thiab cov kav dej ntsuashauv kev sib sau ua ke roj thiab roj av qhov twg qhov kev pabcuam kub qis mus rau qis tau teev tseg

Cov tshuab ua kom txias hauv kev lag luamnqa cov dej txias lossis cov pa roj liquefied

CC65 tsis yog rau kev pabcuam kub siab uas qhov kev nkag mus ua qhov kev xav tsim. Rau cov ntawv thov kub siab, ASTM A691 chrome-moly EFW yeeb nkab yog qhov kev qhia tshwj xeeb.

Cov Ntaub Ntawv Zoo

Txhua qhov kev xa khoom ntawm A671 CC65 CL22 yeeb nkab los ntawm Womic Steel muaj xws li:

Daim ntawv pov thawj xeem EN 10204 3.1 nrog cov tshuaj lom neeg sib xyaw thiab cov txiaj ntsig ntawm kev xeem kho tshuab uas taug qab mus rau tus lej cua sov ntawm lub phaj

Daim ntawv qhia txog kev kuaj mob radiographic rau qhov vuam seam
Cov ntaub ntawv xeem hydrostatic
Daim ntawv qhia txog kev tshuaj xyuas qhov ntev
Kev tshuaj xyuas los ntawm lwm tus neeg muaj thaum thov (SGS, BV, TÜV)

Cov saw hlau taug qab los ntawm tus lej cua sov ntawm lub phaj mus txog rau qhov cim yeeb nkab mus rau daim ntawv pov thawj kawg raug tswj hwm raws li qhov xav tau rau cov ntaub ntawv pabcuam siab.

Ntim thiab Xa Khoom

Cov kav dej muaj cov qhov kawg uas muaj cov hau yas los yog cov qhov kawg tiaj tiaj raws li tau teev tseg. Cov kav dej saum npoo tau txais ib txheej tiv thaiv uas tsim nyog rau kev thauj mus los thiab kev khaws cia rau lub sijhawm luv luv. Cov kav dej me thiab nruab nrab tau muab cov hlua hlau khi ua ke; cov kav dej loj thiab cov kav dej phab ntsa hnyav tau xa ib leeg nrog lub thawv ntoo. Cov ntsiab lus tsa thiab cov cim ua raws li cov kev cai yuav khoom. Kev tshuaj xyuas ua ntej xa khoom los ntawm lwm tus neeg tuaj yeem npaj tau.

Cov Lus Nug Feem Ntau

Q: Qhov txawv ntawm CC65 thiab CC60 hauv ASTM A671 yog dab tsi?

Ob qib siv A516 phaj, tab sis CC60 yog raws li A516 Gr.60 thiab CC65 ntawm A516 Gr.65. Qhov sib txawv tseem ceeb yog qhov tsawg kawg nkaus ntawm cov zis: Gr.60 phaj muaj 220 MPa tsawg kawg nkaus ntawm cov zis, thaum Gr.65 muaj 240 MPa. Cov kab tensile kuj txawv me ntsis. Rau feem ntau ntawm cov ntawv thov kub qis ob qho tib si yog txais tau; kev xaiv nyob ntawm qhov siab tsim thiab kev ntxhov siab tso cai ntawm qhov kub ua haujlwm.

Q: Koj puas tuaj yeem muab A671 CC65 nrog kev sim cuam tshuam?

Yog. Kev kuaj qhov cuam tshuam Charpy V-notch yog qhov yuav tsum tau ua ntxiv raws li ASTM A671. Qhia meej qhov kub thiab txias ntawm kev kuaj thiab cov qauv lees txais hauv daim ntawv xaj yuav khoom. Womic tuaj yeem npaj kev kuaj qhov cuam tshuam ntawm theem phaj lossis ntawm cov yeeb nkab tiav.

Q: Qhov siab tshaj plaws ntawm phab ntsa tuab rau CC65 CL22 yog dab tsi?

ASTM A671 tsis teeb tsa qhov txwv ntawm phab ntsa sab saud uas nruj heev, txawm hais tias qhov kev qhia tshwj xeeb nominally npog 6 hli thiab siab dua. Womic's LSAW txheej txheem tuaj yeem tsim CC65 CL22 yeeb nkab txog li 80 hli phab ntsa tuab siv cov phaj dov thiab ntau-pass submerged arc vuam. Cov phab ntsa tuab heev yuav xav tau lub sijhawm ua ntej ntev thiab kev tsim nyog ntawm cov txheej txheem vuam tshwj xeeb.

Q: A671 CC65 puas zoo ib yam li A516 Gr.65?

Tsis yog raws nraim. A516 Gr.65 yog cov hlau phaj specification. A671 CC65 yog cov yeeb nkab specification uas siv A516 Gr.65 phaj ua cov khoom pib, tsim thiab welds nws rau hauv yeeb nkab, siv cov cua sov kho uas xav tau los ntawm chav kawm, thiab ua qhov kev sim tshwj xeeb. Cov yeeb nkab tiav lawm muaj chemistry thiab lub zog sib xws nrog A516 Gr.65, tab sis cov khoom tsim thiab kev sim yog tswj hwm los ntawm A671.

Q: Kuv puas yuav tsum xaiv ib txoj kab ncaj nraim lossis ob txoj kab ncaj nraim?

Lub tshuab zeb xaiv qhov kev teeb tsa ntawm cov xov raws li qhov loj me uas tau txiav txim. Ib txoj xov ncaj nraim npog OD txog li 1,422 hli thiab phab ntsa tuab txog li 50.8 hli ntawm Womic. Ob txoj xov ncaj nraim npog cov kab uas loj dua thiab phab ntsa hnyav dua. Yog tias koj qhov kev qhia tshwj xeeb ntawm qhov project txwv tsis pub siv hom xov, hais qhov no hauv daim ntawv yuav khoom.

Q: Koj tuaj yeem muab dab tsi kawg?

Cov kawg tiaj tus, cov kawg beveled rau kev vuam taub qab, lossis cov kawg threaded. Cov kawg beveled yog tus qauv rau cov kav dej siab uas yuav raug vuam hauv thaj teb. Cov hau kawg thiab cov tiv thaiv muaj rau kev xa khoom.

Tiv tauj Womic Steelrau ASTM A671 CC65 CL22 EFW cov yeeb nkab hais txog. Muab qhov ntev ntawm sab nraud, phab ntsa tuab, qhov ntau npaum li cas, qhov ntev, qhov kawg tiav, thiab lwm yam kev xav tau ntxiv rau kev kuaj. Peb yuav paub meej tias muaj thiab lub sijhawm ua tiav hauv ib hnub ua haujlwm.

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