Chitoliro cha Chitsulo cha API 5L X42 LSAW: Mphamvu Zopangira & Zofotokozera Zamalonda Chithunzi Chowonetsedwa

Chitoliro cha Chitsulo cha API 5L X42 LSAW: Luso Lopanga & Zofotokozera Zamalonda

Kufotokozera Kwachidule:

Womic Steel imapereka chitoliro chachitsulo cha API 5L X42 LSAW chapamwamba kwambiri chotumizira mafuta ndi gasi pogwiritsa ntchito mphamvu yapakati, maukonde osonkhanitsa gasi, ndi mizere yojambulira madzi. X42 imapereka mphamvu yotsika mtengo ya 290 MPa (42,100 psi), zomwe zimapangitsa kuti ikhale yotsika mtengo kwambiri kuchokera ku GR.B pamapulojekiti omwe amafuna mphamvu yayikulu yogwirira ntchito popanda kufika pamtengo wa X52. Njira ya LSAW imaphatikizapo njira zolumikizira ma plate plate za JCOE, UOE, ndi rolled, zonse zomwe zimapereka msoko wowongoka wokhala ndi umphumphu wapamwamba wa weld, kutalika kwa weld kochepa, komanso kukhazikika kwabwino kwambiri. Pa mainchesi akuluakulu kwambiri kapena makulidwe olemera a makoma (mpaka 50.8mm), Womic imagwiritsa ntchito kuphatikiza kwa plate rolling ndi multi-pass submited arc welding. Mainchesi akunja kuyambira 219mm mpaka 1,600mm (8″ – 63″), makulidwe a makoma kuyambira 5.0mm mpaka 60mm (kutengera njira), kutalika mpaka 24m. Chiphaso cha mphero, mayeso a hydro, mayeso a 100% a ultrasonic kapena phased array, malekezero opindika, ndi chophimba chotsutsana ndi dzimbiri (3LPE, FBE, malasha tar) zilipo. Zoyenera kugwiritsidwa ntchito pa mizere yapakati ya kumtunda ndi kumtunda, kuyika zinthu m'makoma, ndi ntchito ya sour (PSL2).

Kukula kwa Chitoliro cha Chitsulo cha LSAW:Chipinda chakunja: 219mm – 1,600mm (8″ – 63″), Kukhuthala kwa Khoma: 5.0mm – 60.0mm (JCOE/UOE max 50.8mm, mbale yozungulira max 60mm), Kutalika: 6m – 18m muyezo, kutalika kwapadera mpaka 24m

Chitoliro cha Chitsulo cha LSAW Chokhazikika & Chachikulu:API 5L X42 PSL1 / PSL2; imapezekanso mu API 5L X42 kuti igwiritsidwe ntchito ngati sour (yoyesedwa ndi HIC/SSC); yofanana ndi ISO 3183 L290

Kugwiritsa Ntchito Chitoliro cha Chitsulo cha LSAW:Kusonkhanitsa mpweya wachilengedwe wapakati (2–6 MPa), mizere yoyendera mafuta osakonzedwa, zitsime zolowetsa madzi, ma caissons opopera madzi m'mphepete mwa nyanja, mayendedwe a matope, madzi othamanga kwambiri, mapaipi omangidwa a milatho ndi madoko, mapaipi opangira ntchito zamafakitale

Chitsulo cha Womic chomwe chimapereka mitengo yapamwamba komanso yopikisana ya chitoliro chachitsulo cha API 5L X42 LSAW, chitoliro cholumikizidwa cha arc cholumikizidwa molunjika, chitoliro cha mzere wa UOE, chitoliro cha kaboni cholemera pakhoma, chitoliro chosonkhanitsa gasi cha JCOE. Satifiketi ya Mill EN 10204 3.1/3.2, mayeso a hydro, UT/PAUT, malekezero opindika, zokutira za phula la 3PE/FBE/malasha zilipo. Kupereka mwachindunji kwa mafakitale kwa mapaipi a EPC ndi mapulojekiti omanga padziko lonse lapansi.

Tumizani imelo kwa ife Zofotokozera Zamalonda

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

1. Womic Steel: Mphamvu Zopangira ndi Mphamvu za Kampani

Womic Steel Group imagwiritsa ntchito mizere ingapo yopanga ya LSAW, yomwe imagwiritsa ntchito njira zitatu zazikulu zopangira kuti ikwaniritse zofunikira zosiyanasiyana za polojekitiyi:

● Mzere wa JCOE:Pa mainchesi 406mm – 1,422mm (16″–56″), makulidwe a khoma mpaka 50.8mm. Kupanga JCO pang'onopang'ono ndi kukula kwa makina. Kuchita bwino kwambiri, kuzungulira bwino.

●Mzere wa UOE:Pa mainchesi 508mm – 1,220mm (20″–48″), makulidwe a khoma mpaka 40mm. Kupanga U kenako kupanga O ndi kukulitsa kwa hydraulic. Kulondola kwabwino kwambiri, komwe kumakondedwa ndi ntchito yamadzi akuya komanso yowawasa.

●Mbale Yozungulira (Msoko Umodzi):Pa mainchesi 600mm – 1,600mm (24″–63″), makulidwe a khoma kuyambira 25mm mpaka 60mm. Mbale imodzi yokulungidwa mu silinda yokhala ndi weld imodzi yotalikirapo. Yabwino kwambiri pa makulidwe a khoma olemera kuposa mphamvu ya JCOE/UOE.

●Mbale Yokulungidwa (Msoko Wawiri):Kuti khoma likhale lolimba > 50.8mm mpaka 80mm, pogwiritsa ntchito mbale ziwiri zolumikizidwa mozungulira. Kawirikawiri zimagwiritsidwa ntchito popangira mapaipi amafuta ambiri.

Mphamvu yonse ya LSAW imaposa matani 300,000 pachaka. Womic Steel ili ndi API 5L Monogram, ISO 9001, CE PED, ndipo imawunikidwa nthawi zonse ndi ABS, DNV, TÜV, ndi BV. Mbiri yapadziko lonse lapansi m'maiko opitilira 80.

Kusinthasintha kwa Kupanga:

●JCOE: 406–1,422mm OD × 6.0–50.8mm WIT × ≤ 18m

●UOE: 508–1,220mm OD × 6.0–40.0mm WIT × ≤ 24m (kukula kwa makina kumathandizira kuti chizungulire chikhale chozungulira)

●Mbale yozungulira (msoko umodzi): 600–1,600mm OD × 25–60mm Kulemera × ≤ 12m (kulemera kocheperako)

●Mbale yozungulira (msoko wawiri): 1,000–2,000mm OD × 25–80mm Kulemera × ≤ 12m

Mapaipi onse akhoza kuperekedwa ndi PWHT (post-weld heat treatment) kuti agwiritsidwe ntchito pakhoma lokhuthala kapena losauka.

2. API 5L X42: Kapangidwe ka Zinthu ndi Makhalidwe Abwino

API 5L X42 ndi chitoliro chapakati champhamvu chomwe chimapereka mphamvu yocheperako ya 290 MPa (42,100 psi) ndi mphamvu yocheperako ya 415 MPa (60,200 psi). Imadzaza kusiyana pakati pa GR.B (245 MPa) ndi X52 (360 MPa), yomwe nthawi zambiri imatchulidwa pamakina osonkhanitsira mpweya komwe kufunikira kwa kupanikizika kumakhala kocheperako koma kokwera kuposa mizere yogawa wamba.

Kapangidwe ka Mankhwala (Kusanthula kwa Ndende, % yochuluka potengera kulemera):

Chinthu	API 5L X42 PSL1 (yosapitirira %)	API 5L X42 PSL2 (yosapitirira %)
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 (monga momwe mwavomerezera)

PSL2 imafuna carbon equivalent (CEV) ≤ 0.43% kuti igwirizane bwino ndi kusongoka m'munda.

Katundu wa Makina (Kutentha kwa Chipinda):

Katundu	API 5L X42 PSL1	API 5L X42 PSL2
Mphamvu Yopereka (mphindi)	290 MPa (42,100 psi)	290–495 MPa
Mphamvu Yokoka (mphindi)	415 MPa (60,200 psi)	415–655 MPa
Kutalika (mphindi)	23% (ya geji ya 50mm)	22%
Kulimba (kwambiri)	Zomwe sizinafotokozedwe	90 HRB
Kulimba kwa Mphamvu (mphindi)	Sikofunikira	27 J @ 0°C (ngati mukufuna -20°C)

Kuyerekeza ndi GR.B ndi X52:

Giredi	MPa yobereka	Ntchito Yachizolowezi
GR.B	245	Kugawa madzi/gasi mwachizolowezi
X42	290	Kusonkhanitsa mpweya wapakati, kulowetsa madzi
X52	360	Mizere ya thunthu yothamanga kwambiri

3. Kutsatira Miyeso ndi Magawo a Dimensional Range

Chinthu	Kufotokozera
Muyezo	API 5L PSL1 / PSL2 (komanso ISO 3183 L290)
Njira Zopangira	JCOE, UOE, mbale yozungulira (msoko umodzi/wawiri)
Kunja kwa Makulidwe Aakulu	219mm – 1,600mm (8″ – 63″)
Makulidwe a Wall	JCOE/UOE: 5.0mm – 50.8mm; Mbale yozungulira: 25mm – 60mm (mpaka 80mm mwamakonda)
Kutalika kwa Utali	Mulingo: 6m, 12m, 18m; Wotambasuka: mpaka 24m (JCOE/UOE) kapena 12m (khoma lolemera lopindidwa ndi mbale yozungulira)
Mapeto Omaliza	Mapeto Opanda Chilema (PE), Mapeto Opindika (BE) pa API 5L
Kumaliza Pamwamba	Wopanda kanthu, Wothira Mafuta, 3LPE, FBE, Coal Tar Epoxy, Liquid Epoxy
Kulekerera	OD: ±0.5% kapena ±3.2mm (yocheperapo); Kulemera: -0% / +15%; Kutalika: +50mm / -0mm

4. Miyeso ndi Mafotokozedwe Omwe Akupezeka - API 5L X42 LSAW Steel Pipe (Makulidwe Omwe Asankhidwa)

OD (mm)	Zosankha za WT (mm)	Njira	Kulemera pafupifupi (kg/m2)	Kutalika Kwanthawizonse
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/Yokulungidwa	394.6 – 963.9	12m
1,220	19.0, 22.0, 25.4, 30.0, 35.0, 40.0, 45.0	Wopindidwa (msoko umodzi)	563.0 – 1,304.2	12m
1,422	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Yopindidwa (imodzi/iwiri)	875.1 – 1,692.5	12m
1,600	30.0, 40.0, 50.0, 60.0	Wopindidwa (msoko wawiri)	1,162 – 2,280	10m / 12m

Mapaipi olemera a khoma (≥ 40mm) nthawi zambiri amafunikira PWHT kuti achepetse kupsinjika kotsalira ndikukwaniritsa malire a kuuma kuti ntchito ikhale yonyowa.

5. Miyezo ndi Magiredi Ofanana - Chitoliro cha Mzere cha LSAW & Chitoliro Chomangira

Muyezo	Magiredi a Zitsulo	Ntchito Yachizolowezi	Njira Yopangira
API 5L PSL1/PSL2	X42, X52, X60, X65, X70	Kutumiza mafuta/gasi	JCOE/UOE/Yokulungidwa
ASTM A53	GR.B	Mapaipi otsika mphamvu	JCOE
ASTM A106	GR.B/C	Kutentha kwambiri	JCOE/Yokulungidwa
EN 10217-1	S235JR, S275JR	Machubu opanikizika	JCOE
EN 10219	S355JRH, S355J2H	Zigawo za kapangidwe ka nyumba	JCOE/Yokulungidwa
DNV-OS-F101	L290 (X42)	Mapaipi a pansi pa nyanja	UOE
BS 7191	L290 (X42)	Kapangidwe ka nyumba za m'mphepete mwa nyanja	UOE/Yokulungidwa

Chidule cha kagwiritsidwe ntchito:Maukonde osonkhanitsira gasi, mizere yothira madzi, zokwezera madzi m'mphepete mwa nyanja, milu ya maziko a milatho, mapaipi otayira madzi, mapaipi olemera opangira makoma m'mafakitale oyeretsera.

6. Njira Zopangira - LSAW (JCOE / UOE / Rolled Plate) ya X42 Steel Pipe

Womic Steel imasankha njira yoyenera kutengera kukula kwake, makulidwe a khoma, ndi zofunikira pa kapangidwe ka makina.

Njira ya JCOE (406–1,422mm OD, 6.0–50.8mm WET):

● Chopukusira mbale m'mphepete (X kapena J bevel)

● Kupindika (kupindika) kwa m'mbali

● Kupanga mawonekedwe a J (kukanikiza ndi kubowola)

● Kupanga mawonekedwe a C (mndandanda wa ma dies)

● Kupanga mawonekedwe a O (silinda yomaliza)

● Kuwotcherera zikhomo (zomangira zikhomo pa msoko)

● Mzere wamkati (waya umodzi kapena yambiri)

● Kukonza kwakunja (mutatha kuchotsa zinthu zina ngati pakufunika)

● Kukulitsa kwa makina (kuwonjezeka kwa OD kwa 1–1.5% kuti munthu akhale wozungulira komanso womasuka kupsinjika maganizo)

● Yoyenera kugwiritsa ntchito mapaipi ambiri, mtengo ndi khalidwe labwino.

Njira ya UOE (508–1,220mm OD, 6.0–40mm WET):

● Kukanikiza kwa U kumapanga mbale kukhala mawonekedwe a U

● O-press imatseka kukhala mawonekedwe a cylindrical

● Chokulitsa (chamakina) mpaka m'mimba mwake womaliza komanso wozungulira

● Kuwotcherera kofanana ndi JCOE koma kokhala ndi mphamvu zambiri

● Amakonda mapaipi amadzi akuya komanso ntchito yowawa chifukwa cha kuzungulira bwino (± 0.2% OD) komanso kupsinjika kochepa.

Mbale Yozungulira (Msoko Umodzi) wa Khoma Lolemera (600–1,600mm OD, 25–60mm WIT):

● Mbale imodzi yachitsulo imakulungidwa mu silinda pogwiritsa ntchito makina opindika a ma roll atatu kapena anayi

● Msoko wautali wolukidwa ndi SAW (wodutsa mbali zambiri, nthawi zambiri mbali ziwiri)

● Palibe kukulitsa kwamakina (kuzungulira kumachitika kudzera mu kulondola kozungulira)

● Yoyenera mapaipi okhuthala a khoma komwe zipangizo za JCOE/UOE zili zochepa

● Nthawi zambiri pamafunika PWHT (kuchepetsa kupsinjika) kuti ikwaniritse zofunikira pakulimba kwa ntchito yowawa.

Mbale Yopindidwa (Msoko Wawiri) wa Khoma Lolemera Kwambiri / M'mimba mwake Waukulu Kwambiri (1,000–2,000mm OD, 25–80mm WIT):

Mapepala awiri adakulungidwa mu theka la masilinda ndikulumikizidwa pamizere iwiri yayitali

Kawirikawiri amagwiritsidwa ntchito popangira mapaipi ambiri opanikizika, ma penstock, ndi zipinda zazikulu zosungiramo madzi.

Ma weld onse ayesedwa 100% UT ndi RT.

Chithandizo cha Kutentha Pambuyo pa Kuwotcherera (PWHT):Pa makulidwe a khoma > 32mm kapena ntchito yowawasa (H₂S), Womic imapereka chithandizo chochepetsa kupsinjika mu uvuni wa galimoto kapena m'deralo pogwiritsa ntchito induction heating. Kulimba kumalamulidwa kufika pa ≤ 90 HRB (kapena ≤ 248 HV10).

7. Njira Zowongolera Ubwino ndi Kuyesa Chitoliro cha Chitsulo cha API 5L X42 LSAW

Gawo	Njira Yowunikira	Cholinga	Njira Yoyenera
Mbale	Kusanthula kwa Mankhwala (OES)	Tsimikizani malire a X42	Zonse
Mbale	Ultrasonic (Kuwunika kwa Lamination)	Dziwani zolakwika zamkati	Zonse
Mbale	Kokanira / Pinda	Kutsimikizira kwa makina	Zonse
Pa nthawi yopanga	Miyeso (m'mimba mwake, ovality)	Onetsetsani kuti zinthu zikugwirizana	Zonse
Msoko wolukidwa	100% Yodzipangira yokha UT (kapena PAUT)	Dziwani kusowa kwa fusion, slag, ndi porosity	Zonse
Msoko wolukidwa	RT (malo kapena kutalika konse pa spec)	Kutsimikizira khalidwe la weld	Zonse
Msoko wolukidwa	MPI (zala ndi HAZ)	Ming'alu pamwamba	Zonse
Chitoliro chomalizidwa	Mayeso a Hydrostatic (pa API 5L)	Kukhulupirika kwa kupsinjika	Zonse
Chitoliro chomalizidwa	Charpy V-Notch (PSL2)	Kulimba kwa kutentha kochepa (27J @ 0°C)	PSL2 yokha
Chitoliro chomalizidwa	Kuuma (HRB/HV10)	Kutsatira malamulo a ntchito ya Sour	PSL2 / wowawasa
Chitoliro chomalizidwa	Kupindika Kotsogozedwa / Kupindika	Kusinthasintha	Zonse
Chitoliro chomalizidwa	Zooneka ndi zolembera	Mkhalidwe wa pamwamba, kulondola	Zonse

Zosankha pa ntchito yofunika kwambiri:

● HIC pa NACE TM0284

● SSC pa NACE TM0177

● Kutentha kochepa pa -20°C, -40°C kapena -60°C

● DWTT (Kuyesa Kuchepetsa Kulemera kwa Misozi) kuti muchepetse kufalikira kwa ming'alu

Mapu athunthu a kuuma kwa khoma lokhuthala

8. Mapulogalamu Oyambirira - API 5L X42 LSAW Steel Pipe

● Maukonde osonkhanitsira gasi – kusonkhanitsa gasi wachilengedwe kuchokera ku zitsime kupita ku mafakitale okonzera (kupanikizika mpaka 6 MPa)

● Mizere yoyendera mafuta osakonzedwa - mayendedwe afupiafupi kuchokera pa malo osungiramo zitsime kupita ku malo enaake

● Mizere yothira madzi - kubwezeretsanso mafuta ena, madzi othamanga kwambiri (10–20 MPa)

● Ma caisson otchingira pulatifomu yakunja kwa dziko lapansi - chivundikiro choteteza ma risers m'dera la splash

● Mapaipi otayira matope - kunyamula miyala yachitsulo, mkuwa wambiri, ndi zinthu zina za m'mbuyo

● Kuyika mipiringidzo ya mlatho ndi madoko - mapaipi olemera okhala ndi mainchesi akuluakulu komanso olemera a makoma kuti maziko ake akhale olimba

● Mapaipi opangira zinthu zamafakitale - fakitale yoyeretsera ndi mizere ya petrochemical yapakati yopanikiza

● Penstocks (mbale yolemera yopindidwa pakhoma) – malo opangira magetsi pogwiritsa ntchito madzi

9. Kupaka ndi Kutumiza - API 5L GR.B LSAW Steel Pipe

Kupaka:

● Ma diameter ang'onoang'ono (≤ 24″): Ma bundle a hexagonal, omangidwa ndi zitsulo zoteteza m'mphepete.

● Ma diameter akuluakulu (> 24″): Mapaipi osiyanasiyana, olekanitsidwa ndi dunnage yamatabwa ndi mapepala a rabara.

● Zipewa zomaliza: Zipewa zapulasitiki kapena zachitsulo zolemera (zotetezedwa ndi malekezero opindika).

● Chitetezo cha kupaka: Pa mapaipi okhala ndi 3LPE/FBE, gawo lililonse limalekanitsidwa ndi mphete za thovu kuti lisawonongeke panthawi yonyamula katundu panyanja.

Njira zotumizira:

● Zombo zolemera zokwana matani okwana 500 kapena mainchesi akuluakulu

● Zidebe za 20ft/40ft za mainchesi ang'onoang'ono (zomangidwa pamodzi)

● Malo osungira zinthu okhala ndi mipando yosalala kapena ziwiya zotseguka pamwamba kuti zikhale zazitali kwambiri (mpaka mamita 24)

● Zotumiza zonse zikuphatikizapo zikalata zonse: MTC (EN 10204 3.1 kapena 3.2), lipoti la mayeso a hydro, malipoti a UT/PAUT, satifiketi yopaka utoto (ngati ilipo), mndandanda wa zolongedza, invoice yamalonda, COO.

10. Ubwino ndi Mafunso Ofunsidwa Kawirikawiri pa Chitsulo cha Womic - API 5L X42 LSAW Steel Pipe

Chifukwa chiyani Womic Steel ya X42 LSAW?

●Njira zitatu zowonjezera (JCOE, UOE, rolled plate) zomwe zimaphimba miyeso yosiyanasiyana

●Kukhoma kolimba mpaka 60mm (msoko umodzi) kapena 80mm (msoko wawiri) wothira madzi ndi mapaipi ambiri

●Malo opumulirako a PWHT ochepetsera kupsinjika kwa khoma lokhuthala ndi mapaipi oyeretsera

●Kuyang'anira kwa API 5L Monogram + CE + kwa chipani chachitatu (SGS, BV, TÜV, DNV)

●Kubwerera mwachangu (masiku 30–50 mwachizolowezi)

●Kutalika mpaka mamita 24 kumachepetsa ma welds a munda ndi 30–40%.

Mafunso Ofunsidwa Kawirikawiri:

Q: Ndi liti pamene ndiyenera kusankha UOE m'malo mwa JCOE pa X42?
A: UOE imapereka kuzunguliridwa bwino (±0.2% vs ±0.5% ya JCOE) komanso kuchepetsa kupsinjika kotsalira, zomwe zimapangitsa kuti ikhale yabwino kwambiri pamapaipi akuya a m'mphepete mwa nyanja (pansi pa nyanja) komanso ntchito yowuma komwe kukhazikika kwa magawo pansi pa kupsinjika kwakunja ndikofunikira. JCOE ndi yotsika mtengo kwambiri pamapulojekiti ambiri akunyanja.

Q: Kodi mungathe kupanga chitoliro cholemera cha khoma cha X42 chopitirira 50mm?
A: Inde. Pa makulidwe a khoma kuyambira 50mm mpaka 60mm, timagwiritsa ntchito msoko umodzi wopindidwa ndi PWHT. Pa msoko wa 60–80mm, wopindika kawiri. Izi nthawi zambiri zimagwiritsidwa ntchito popangira mizere yothira madzi pa 20–30 MPa kapena popangira ma hydroelectric penstocks.

Q: Kodi kusiyana pakati pa PSL1 ndi PSL2 pa X42 ndi kotani?
A: PSL2 ili ndi malire okhwima a C, P, S, Charpy impact (27J @ 0°C), kuuma kwakukulu kwa 90 HRB, ndipo imafuna NDT yambiri. Pa mizere yosonkhanitsa mpweya yomwe ingakumane ndi kutentha kochepa kapena ma H₂S traces, PSL2 ikulimbikitsidwa.

Q: Kodi mumapereka chithandizo cha sour X42?
A: Inde. Timapereka X42 PSL2 ndi mayeso a HIC (NACE TM0284) ndi SSC (NACE TM0177). Zofunikira zovomerezeka: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Tapereka chithandizo cha sour X42 ku mapulojekiti a Middle East ndi West Africa.

Q: Kodi mumatsimikiza bwanji kuti mapaipi okhuthala a khoma (40–60mm) ndi abwino?
Yankho: Timagwiritsa ntchito multi-pass SAW yokhala ndi njira yowongolera kutentha moyenera, kuyang'anira kutentha kwa interpass, komanso 100% automated UT yokhala ndi nthawi yowuluka (TOFD) poyesa volumetric. PWHT imagwiritsidwa ntchito pochepetsa kupsinjika kotsalira.

Chitsimikizo cha Pulojekiti - Network Yosonkhanitsira Gasi Wachilengedwe ku West Africa

Dziko:Nigeria (chigawo cha Niger Delta)
Muyezo ndi Giredi:API 5L X42 PSL2 (utumiki wowawasa, woyesedwa ndi HIC)
Miyeso ndi Kuchuluka:

OD 508mm (20″) × Kulemera 11.9mm – 12,000 mamita (pafupifupi matani 1,800) yopangidwa ndi njira ya JCOE

OD 762mm (30″) × Kulemera 19.0mm – 3,500 metres (pafupifupi matani 1,550) yopangidwa ndi msoko umodzi wa rolled plate wokhala ndi PWHT
Mafotokozedwe:Chophimba chakunja cha 3LPE (makulidwe onse a 2.8mm), malekezero opindika 30° / 1.6mm, hydrotest pa 8.5 MPa (kupanikizika kwa kapangidwe kake ndi 6.4 MPa). Kufunika kwa Charpy Impact pa 0°C (min 27J, kufika pa 65–90J). HIC pa NACE TM0284 Yankho A, 96h - njira zovomerezeka: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%.
Ntchito:Kusonkhanitsa gasi wachilengedwe kuchokera ku zitsime zisanu ndi chimodzi kupita ku malo oyeretsera mafuta pakati pa dambo la Niger Delta. Chitoliro cholemera cha khoma cha mainchesi 30 chinagwiritsidwa ntchito podutsa gawo la dambo la mainchesi 1.2, pomwe mapaipi a JCOE a mainchesi 20 anali ngati nthambi.

Mavuto ndi Mayankho a Ukadaulo:

●Malo owolokera dambo okhala ndi chitoliro cholemera cha khoma– Mapaipi a 30″ × 19.0mm (pafupifupi 355 kg/m2) anayenera kuyikidwa pa dambo lokhala ndi dothi lofewa kwambiri. Mabwato achikhalidwe sankatha kufika pamalowo. Womic Steel inapereka mapaipi okhala ndi malo olumikizirana amodzi (18m m'malo mwa 12m) kuti achepetse kuchuluka kwa ma welds a field girth ndi 33%, kuchepetsa kuwotcherera pamalopo m'mikhalidwe yovuta. Tinaperekanso malangizo atsatanetsatane okweza ndi kusamalira kuphatikizapo mtunda wa matabwa ofalikira.

●Kutsatira malamulo a ntchito ya Sour (H₂S ilipo)– Mpweya wogwirizana nawo unali ndi mphamvu yofika 30 ppm H₂S. Womic adachita mayeso a HIC pa mapaipi onse a 20″ JCOE ndi 30″ rolled plate. Zitsanzo zonse zidaperekedwa ndi CLR 0%, CTR 0%, CSR 0%. Pa chitoliro cha 30″ (19mm WT), kasitomala adafunikira kulimba pansi pa 85 HRB (kokhwima kuposa API 5L's 90 HRB). Womic adayika kutentha kwa induction komweko ku msoko wa weld kuti atsimikizire kulimba kofanana. Zotsatira: chitsulo choyambira 78–82 HRB, weld 80–85 HRB.

● Kumatira kwa 3LPE kuvala mu chinyezi chambiri– Kukhazikitsa dambo kunatanthauza kuti mapaipi azimizidwa m'madzi kwa milungu ingapo asanadzazidwenso. Standard 3LPE ikhoza kusokonezeka ngati chinyezi chomwe chimagwiritsidwa ntchito sichikulamuliridwa. Womic adapaka utoto pamalo ogwirira ntchito omwe amawongolera nyengo (osapitirira 60% RH) ndipo adazindikira 100% nthawi yopuma pa 5kV. Mphamvu yoyeretsedwa pa 25°C idapereka > 200 N/cm, zomwe zidapitilira ISO 21809 zomwe zimafunikira 100 N/cm.

●Kutumiza katundu kumalo akutali– Mapaipi anatumizidwa kuchokera ku Shanghai kupita ku Tin Can Island Port, Lagos, kenako ananyamula magalimoto akuluakulu 380km kupita ku malo a Niger Delta. Misewu inali yoipa komanso yoletsa kulemera. Womic adapanga dongosolo lotumizira katundu pogwiritsa ntchito kutalika kwa 12m kwa mapaipi a 20″ (olumikizidwa) ndi malo olumikizirana a 18m a mapaipi a 30″ pa mathireyala okhala ndi magalimoto operekeza. Palibe kuwonongeka kapena kupindika komwe kunachitika panthawi yoyenda.

● Zotsatira:Netiweki yosonkhanitsa mpweya inayamba kugwira ntchito mu kotala loyamba la 2024. Matani onse 1,550 a chitoliro cha mainchesi 30 ndi matani 1,800 a chitoliro cha mainchesi 20 adavomerezedwa ndi SGS Nigeria kuti ayang'anirenso ndi anthu ena. Kasitomalayo adanena kuti palibe cholakwika chilichonse pa weld panthawi yowelda, chifukwa cha mawonekedwe a bevel ndi ovality control (≤ 0.3% ya mapaipi a JCOE, ≤ 0.5% ya mapaipi ozungulira). Womic Steel tsopano yalembedwa ngati wogulitsa wovomerezeka pakukulitsa mapaipi mtsogolo mwa kasitomala.

Lumikizanani nafe:
Webusaiti: www.womicsteel.com
Imelo: sales@womicsteel.com

Foni / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568

Womic Steel – Mnzanu wodalirika wa mapaipi a API 5L X42 LSAW kuti azitha kusonkhanitsa mpweya wapakati, kulowetsa madzi, komanso kugwiritsa ntchito zinthu zouma.

Yapitayi: Chitoliro cha Chitsulo cha API 5L GR.B LSAW: Mphamvu Zopangira & Zofotokozera Zamalonda

Ena: Chitoliro cha Chitsulo cha API 5L X52 LSAW: Luso Lopanga & Zofotokozera Zamalonda