Ibisobanuro by'igicuruzwa
Ingano y'umuyoboro w'icyuma gitemba cya Super Duplex cyasutswe:Ingano yo hanze: 6.35mm – 1,219mm (1/4″ – 48″), Ubunini bw'urukuta: 0.5mm – 50mm (Gahunda 5S, 10S, 40S, 80S), Uburebure: 6m – 12m bisanzwe, uburebure bwihariye kugeza kuri 24m
Igipimo n'Ingano by'Umuyoboro wa Super Duplex Welded:ASTM A790 (umuyoboro) / ASTM A789 (umuyoboro) S32750; na UNS S32750; EN 10217-7 1.4410; Bingana na Super Duplex 2507
Imikoreshereze y'Umuyoboro wa Super Duplex Welded:Imbuga za peteroli na gaze zo mu mazi (ipompo ziterura amazi yo mu nyanja zishyuha cyane, sisitemu z'amazi yo kuzimya umuriro, imiyoboro ya hydraulic), gutunganya imiti (aside organic ifite chloride nyinshi, aside fosforike), imiyoboro ifata umwuka wa flue gaz desulfurization (FGD) n'imiyoboro isubiramo amazi, imiyoboro itwara umwuka wa SWRO (70-100 bar), gukora ingufu zikomoka ku bushyuhe (chloride nyinshi, amazi ashyushye cyane), imashini zisukura umwuka wo mu mazi (SOx removal), imiyoboro ishyushya amazi yo mu mazi, umbilicals za peteroli na gaze zo munsi y'inyanja n'imiyoboro igenzura, serivisi mbi ifite H₂S nyinshi na chloride nyinshi.
Womic Steel itanga ibiciro byiza kandi bishimishije bya ASTM A790 S32750 welded super duplex stainless steel pipe, ERW super duplex pipe, EFW super duplex pipe, umuyoboro ukomeye urwanya ingese, umuyoboro urwanya amazi yo mu nyanja, NACE MR0175 ikurikije amategeko. Icyemezo cy'uruganda EN 10204 3.1/3.2, hydro test, UT, solution annealed, beveled/plain ends, pickled finished finished. Irahari ku isoko ry'inganda ku mishinga yo mu nyanja, desalination, chemical, na geothermal ku isi yose.
Womic Steel: Ubushobozi bwo gukora n'imbaraga z'ikigo
Womic Steel Group ni ikigo gikomeye mu gukora no kohereza ibicuruzwa mu mahanga ku isi gifite ubunararibonye bw'imyaka irenga 20 mu gukora ibikoresho bya karuboni, ibitangiza ibyuma, na duplex (harimo na super duplex). Ikigo cyacu cyihariye cyo gukora imiyoboro ya super duplex ikoreshwa mu byuma bitangiza ibyuma gikoresha ikoranabuhanga rigezweho ryo gusudira hamwe no kugenzura cyane uburyo ubushyuhe bwinjira kugira ngo hagumane ingano ya ferrite/austenite ikenewe (40-60%) no gukumira intera hagati y'ibyuma (sigma, chi, na R-phase):
Umurongo wa ERW (Gusudira Ubudahangarwa bw'Amashanyarazi):Ku bijyanye n'umurambararo kuva kuri 6.35mm kugeza kuri 610mm (1/4″ – 24″), ubugari bw'urukuta kuva kuri 0.5mm kugeza kuri 12.7mm. Gusudira hakoreshejwe frequency nyinshi hamwe n'ubushyuhe buke cyane (≤ 1.2 kJ/mm) hamwe no gufunga umugozi nyuma yo gusudira. Ni byiza cyane ku miyoboro mito kugeza hagati ya super duplex.
Umurongo wa EFW (Electric Fusion Welding):Ku murambararo kuva kuri mm 219 kugeza kuri mm 1219 (8″ – 48″), ubugari bw'urukuta kuva kuri mm 4.0 kugeza kuri mm 50. Inzira y'imizi ya TIG (GTAW) ifite inzira zo gushyiramo SAW, ikoresha umwuka ukungahaye kuri azote (N₂ + Ar) hamwe n'icyuma gihuye na super duplex filler metal (ER2594).
Umurongo wa LSAW / SAWL kuri Super Duplex:Ku bunini bw'urukuta kuva kuri mm 406 kugeza kuri mm 1524 (16″ – 60″), ubugari bw'urukuta kugeza kuri mm 60. Gusudira SAW ifite impande ebyiri hamwe n'ubushyuhe bugenzurwa cyane (≤ 1.5 kJ/mm) n'ubushyuhe bwo hagati ≤ 100°C.
Imiyoboro yose ya super duplex stainless steel welded ikorerwa annealing (gushyuha) kuri 1070-1120°C hagakurikiraho kuzimya amazi kugira ngo hasubirwemo imiterere ya austenite-ferrite iringaniye, hashongeshwe ibyiciro byose by’ibyuma, kandi hakorwe neza uburyo bwo kurwanya ingese, hagakurikiraho gukaraba no gucika intege.
Impamyabumenyi z'Ubuziranenge n'Iyubahirizwa ry'Amategeko:
Icyemezo cya ISO 9001:2015
PED 2014/68/EU (Ibimenyetso bya CE)
Icyemezo cya EN 10204 3.2 gifite icyemezo cy’uruhande rwa gatatu (TÜV, BV, SGS, LR)
Ubugenzuzi bw'Uruhande rwa Gatatu (TPI) bwemewe na SGS, BV, ABS, DNV, TÜV
NORSOK M-650 (ni ngombwa ku bikoresho bya super duplex byo mu mazi)
Kwemererwa kwa DNV GL ku miyoboro ya super duplex
NACE MR0175 / ISO 15156 yo gutanga serivisi nziza (H₂S)
Womic Steel itanga imiyoboro ikomeye ivanze n’amashanyarazi mu bihugu birenga 40 biri mu nganda zikora mu mazi, mu nganda zikora imiti, mu nganda zitunganya umunyu, no mu nganda zikoresha ingufu z’amashanyarazi.
Uburyo bworoshye bwo gukora:
ERW: 6.35–610mm OD × 0.5–12.7mm UBUREBURE × ≤ 12m
EFW: 219–1219mm OD × 4.0–50mm WIT × ≤ 12m (ndetse iyo ubisabye)
LSAW: 406–1524mm OD × 6.0–60mm Uburemere × ≤ 18m
Amahitamo yo kurangiza: Yakuwemo ibirungo n'ibitonore, yakuwemo ibirungo by'umuyoboro w'amazi (wo gutekaho imiyoboro)
ASTM A790 S32750: Imiterere y'ibikoresho n'imikorere yabyo
UNS S32750 ni icyuma gikozwe mu buryo bwa super duplex gifite chromium nyinshi (25%), molybdenum nyinshi (4%), na azote nyinshi (0.27%). Itanga ubushobozi bwo kurwanya ingese nyinshi kurusha duplex isanzwe ya 2205, bigatuma ikoreshwa mu bintu birimo chloride na sulfide, harimo amazi yo mu nyanja ashyushye cyane, aside, na H₂S sour service nyinshi. Azote nyinshi kandi ituma austenite ishingwa kandi ikongera ubushobozi bwo gusudira.
Ibikubiye mu binyabutabire (Isesengura ry'inkombe, % ku bunini):
| Igice | UNS S32750 (ASTM A790) | UNS S32760 (kugereranya) |
| C | ≤ 0.030 | ≤ 0.030 |
| Mn | ≤ 1.20 | ≤ 1.00 |
| P | ≤ 0.035 | ≤ 0.030 |
| S | ≤ 0.020 | ≤ 0.010 |
| Si | ≤ 0.80 | ≤ 1.00 |
| Cr | 24.0 – 26.0 | 24.0 – 26.0 |
| Ni | 6.0 – 8.0 | 6.0 – 8.0 |
| Mo | 3.0 – 5.0 | 3.0 – 4.0 |
| N | 0.24 – 0.32 | 0.20 – 0.30 |
| Cu | ≤ 0.50 | 0.50 – 1.00 |
| W | — | 0.50 – 1.00 |
| Fe | Kuringaniza | Kuringaniza |
Imiterere ya mekanike (Ubushyuhe bw'icyumba, Umuti washyizwemo):
| Umutungo | S32750 (Super Duplex 2507) |
| Imbaraga z'umusaruro (uburemere, 0.2% by'igabanuka) | 550 MPa (79,800 psi) |
| Imbaraga zo Gufata (iminota) | 795 MPa (115,300 psi) |
| Uburebure (ubugari bwa minini, 50mm) | 25% |
| Ubukomere (ntarengwa) | 90 HRB (cyangwa 290 HV) |
| Ubukomere bw'ingaruka (iminota) kuri -46°C | 27 J (Charpy V-Notch, ubusanzwe 80-150J) |
Imiterere ifatika:
Ubucucike: 7.80 g/cm³
Modulus yo gucikagurika: 200 GPa (29 × 10⁶ psi)
Ubushobozi bwo gutwara ubushyuhe: 15 W/m·K kuri 100°C
Igipimo cy'ubushyuhe: 13.0 × 10⁻⁶/°C (20-100°C)
Ubudahangarwa ku ngaruka:
Umubare ungana wo kurwanya imiyoboro (PREN) = Cr% + 3.3 (Mo%) + 16 (N%) ≥ 40 (ubusanzwe 42-45)
Ubudahangarwa bwiza ku myobo n'ingufu mu duce twa chloride kugeza ku bushyuhe bwinshi (ubushyuhe bukomeye bw'imyobo > 80°C mu mazi yo mu nyanja)
Ubudahangarwa budasanzwe bwo kwangirika kw'ingufu za chloride stress (SCC)
Irwanya cyane sulfide stress cracking (SSC) kugira ngo ikoreshwe neza (NACE MR0175)
Ubudahangarwa bwiza ku bisubizo bya aside organic, aside fosforike, n'ibisubizo bya caustic
Ubudahangarwa buhanitse bwo kurwanya isuri n'ubukonje
Ibisabwa ku miterere mito (kuri ASTM A790):Ingano ya Ferrite igomba kuba 40-60% nyuma yo gukurura amazi. Womic ipima ferrite ikoresheje isesengura ry'ishusho kuri ASTM E562 kuri buri bushyuhe na buri gipimo cy'ubushuhe.
Iyubahirizwa ry'Uburebure bw'Ibipimo n'Amahame
| Ikintu | Ibisobanuro |
| Igisanzwe | ASTM A790 / ASME SA790 (umuyoboro); ASTM A789 (umuyoboro) |
| Uburyo bwo gukora | ERW, EFW, LSAW |
| Intera y'Ubugari bwo Hanze | ERW: 6.35 - 610mm; EFW / LSAW: 219 - 1524mm |
| Ubunini bw'urukuta | ERW: 0.5 - 12.7mm; EFW / LSAW: 4.0 - 50mm |
| Ingano y'ingengabihe | 5S, 10S, 40S, 80S (kuri NPS 1/8″ – 48″) |
| Intera y'uburebure | Uburebure busanzwe: 6m; Uburebure: 12m, 18m, kugeza kuri 24m |
| Irangizwa rya nyuma | Iherezo Risanzwe (PE), Iherezo Rifite Imirongo Igororotse (BE) |
| Kurangiza ubuso | Yakuwemo ibinure n'ibitonore, Yakuwemo ibinure by'akataraboneka |
| Kwihanganirana | OD: ± 0.5% cyangwa ± 3.2mm; Uburemere: ± 12.5% (kuri ASTM A999); Uburebure: +50mm / -0mm |
Ibipimo n'Ibisobanuro Bihari – Umuyoboro wa ASTM A790 S32750 Welded Super Duplex (Ingano Zisanzwe Zatoranijwe)
| NPS | OD (mm) | Gahunda | Uburemere (mm) | Uburemere (kg/m2) | Uburebure Busanzwe | Uburyo busanzwe bwo gukoresha |
| 1/2″ | 21.3 | 80S | 3.73 | 1.62 | 6m | Umuyoboro wo kugenzura munsi y'inyanja |
| 3/4″ | 26.7 | 80S | 3.91 | 2.20 | 6m | Gutera imiti |
| 1″ | 33.4 | 80S | 4.55 | 3.24 | 6m | Umuyoboro w'inkondo y'umura |
| 1-1/2″ | 48.3 | 80S | 5.08 | 5.41 | 6m | Umurongo wa Hydraulic |
| 2″ | 60.3 | 80S | 5.54 | 7.48 | 6m / 12m | Kuzamura amazi yo mu nyanja |
| 3″ | 88.9 | 40S | 5.49 | 11.3 | 6m / 12m | Amazi y'inkongi y'umuriro |
| 4″ | 114.3 | 40S | 6.02 | 16.1 | 6m / 12m | Umurongo w'amazi y'umunyu |
| 6″ | 168.3 | 40S | 7.11 | 28.3 | 6m / 12m | Umuvuduko ukabije wa SWRO |
| 8″ | 219.1 | 40S | 8.18 | 42.6 | Metero 12 | Imitwe y'amakuru yo mu mahanga |
| 10″ | 273.0 | 40S | 9.27 | 60.3 | Metero 12 | Umurongo wo gusubiramo FGD |
| 12″ | 323.9 | 40S | 10.31 | 79.8 | Metero 12 | Umunyu w'amazi ashyushye cyane |
| 16″ | 406.4 | 40S | 12.70 | 123.4 | Metero 12 | Ubunini bw'umurambararo |
| 20″ | 508.0 | 40S | 15.09 | 183.5 | Metero 12 | Amazi y'ingenzi yo mu nyanja |
| 24″ | 609.6 | 40S | 17.48 | 255.5 | Metero 12 | Ijwi rinini |
Ingano zihariye ziboneka hanze y’izi ntera. Imiyoboro ya Super duplex ikenera igihe kirekire cyo kuyikoresha bitewe n’uburyo bwihariye bwo kuyikoresha mu gukata plaque/strip.
Amahame n'Ibyiciro bya Common Super Duplex Stainless Steel byakozwe na Womic Steel
| Igisanzwe | Ibyiciro by'icyuma | Uburyo busanzwe bwo gukoresha | Uburyo bwo gusudira |
| ASTM A790 | S32750, S32760, S32550 | Inkombe z'inyanja, imiti, ubushyuhe | EFW/LSAW |
| ASTM A789 | S32750, S32760 | Umuyoboro w'amazi, umuyoboro uhindura ubushyuhe | ERW (irangiye ikonje) |
| ASTM A928 | S32750, S32760 | Imashini ihuza amashanyarazi ikoresheje amashanyarazi menshi | EFW |
| EN 10217-7 | 1.4410 (2507) | Intego z'igitutu | SAW/ERW |
| NORSOK M-630 | 25Cr (2507) | Urwego rwo mu nyanja ya Noruveje | EFW/LSAW |
Ikoreshwa:Amazi yo mu nyanja ashyushye cyane, umuvuduko mwinshi wa SWRO, ibinyabutabire bya FGD, amazi y'umunyu ashyushye cyane, serivisi y'umunyu irimo H₂S nyinshi na chloride nyinshi, umbilicals zo munsi y'inyanja.
Uburyo bwo gukora - Umuyoboro w'icyuma gitemba gitemba gikozwe mu cyuma gitemba gitemba gikozwe mu buryo bwa Super Duplex (ERW, EFW, LSAW)
Gusudira super duplex bisaba kugenzura cyane uburyo ubushyuhe bwinjira, ubushyuhe bwo hagati y’ibice, no gutunganya ubushyuhe nyuma yo gusudira. Ingano nyinshi ya alloy (25% Cr, 4% Mo, 0.27% N) ituma ibikoresho bishobora kugwa mu gihe cy’ubukonje (sigma, chi) iyo ubukonje butinze cyane cyangwa niba ubushyuhe bwinjira cyane.
Uburyo bwo gusudira ERW (Gusudira Ubudahangarwa bw'Amashanyarazi) – Ubugari Buto Kuva Kuri Hagati (6.35–610mm OD):
Igenzura ry'ibikoresho fatizo (Umurongo/Umwobo):Umugozi wa Super duplex wemejwe ko ugizwe na S32750 (Cr 24-26%, Mo 3-5%, N 0.24-0.32%). Buri coil ifite umubare wihariye w'ubushyuhe.
Gufungura no Kugorora
Gukata Inkombe z'Imirongo
Gukora:Gutunganya imizingo mu buryo buhoraho.
Gusudira inshuro nyinshi:Ubushyuhe buke cyane (≤ 1.2 kJ/mm). Umuvuduko wo gusudira wakozwe neza kugira ngo ugabanye ubugari bw'agace gashobora kwangizwa n'ubushyuhe.
Gufunga umushongi:Guhita ushyiramo induction annealing nyuma yo gusudira, hanyuma hagakurikiraho amazi yo kuzimya.
Ingano no Kugorora
Gukata kugeza ku burebure
NDT:Ikizamini cya Eddy current (100%) + UT y'ubushake.
Gufunga umuti (Umuyoboro wuzuye):1070-1120°C, amazi yo kuzimya (ni ngombwa kuri super duplex zose).
Ikizamini cy'amazi
Guteka no gushyuha
Igipimo cya Ferrite:40-60% by'ifuru.
Igenzura rya nyuma n'ibimenyetso
Uburyo bwo gusudira hakoreshejwe EFW (Electric Fusion Welding) – Ubugari bunini (219–1219mm OD, 4.0–50mm WIT):
Gutegura isahani:Isahani nini cyane ya duplex, impande zayo zikozwe mu buryo bwa X (bevel).
Gukora imizingo
Gusudira ku mpande
TIG (GTAW) Root Pass:Guhuza super duplex filler (ER2594), umwuka ushyigikira azote (nibura 5% N₂ muri Ar) kugira ngo hirindwe ibura rya azote.
Impamyabumenyi zo kurangiza SAW n'izijyanye n'umusozo:Ingufu zikoreshwa mu gushyushya ≤ 1.5 kJ/mm, ubushyuhe bwo hagati ≤ 100°C. Ingufu zidasanzwe zo gushyushya kuri super duplex.
Inner Weld (ku budahe bunini)
100% RT + UT(kuri ASTM A928)
Gufata umuti:Gutunganya ubushyuhe bw'umuyoboro wose mu itanura riva hasi mu modoka (1070-1120°C), icyuma cyo kuzimya amazi.
Guteka no gushyuha
Ikizamini cy'amazi
Igipimo cya Ferrite na PMI
Igenzura ry'ibipimo n'ibimenyetso
Uburyo bwa LSAW bwo gukoresha Super Duplex – Umurambararo munini cyane (406–1524mm OD, 6.0–60mm WIT):
UOE cyangwa JCOE ikora ikoresheje super duplex plate
Gusudira SAW ku mpande ebyiri hamwe n'ubushyuhe ≤ 1.5 kJ/mm
Gusudira umuti wose nyuma yo gusudira
Igipimo cya Ferrite kuri buri muyoboro
Ingingo z'ingenzi zo kugenzura Super Duplex Welding:
Ingufu zikoreshwa mu gushyushya: ≤ 1.5 kJ/mm (icyerekezo ≤ 1.2 kJ/mm kugira ngo habeho imiterere myiza)
Ubushyuhe bwo hagati y'inzira: ≤ 100°C (bushyirwa mu bikorwa cyane)
Gazi ifasha mu gushyuha: Nibura 5% N₂ muri Ar (cyangwa 10-20% N₂ kugira ngo ubone umusaruro mwiza)
Igipimo cyo gukonjesha nyuma yo gusudira: Byihuse (bifashijwe no gukonjesha umwuka nibiba ngombwa)
Gupfunyika umuti: 1070-1120°C, amazi yo kuzimya - ni ngombwa, ntibishobora gusibwa.
Ingano ya Ferrite: 40-60% (intego ni 45-55%)
Uburyo bwo kugenzura no gupima ubuziranenge bw'umuyoboro wa ASTM A790 S32750 Welded Super Duplex
| Urugendo | Uburyo bwo kugenzura | Intego |
| Ibikoresho fatizo | Isesengura ry'Ubutabire (OES) | Genzura S32750 (Cr 24-26%, Mo 3-5%, N 0.24-0.32%) |
| Ibikoresho fatizo | Isuzuma ry'umukandara | Umusaruro ≥ 550 MPa, Gufata ≥ 795 MPa |
| Ibikoresho fatizo | Igipimo cya Ferrite | Igice cyo gutangiraho 40-60% |
| Ibikoresho fatizo | Charpy kuri -46°C | ≥ 27 J (ubusanzwe 80-150 J) |
| Ibikoresho fatizo | Ikizamini cya kononekara hagati y'udukoko (ASTM A262) | Nta gukangurira abantu |
| Muri gahunda | Gukurikirana Ibyinjira mu Bushyuhe | ≤ 1.5 kJ/mm (EFW/LSAW) |
| Muri gahunda | Ubushyuhe bwo hagati y'inzira | ≤ 100°C |
| Muri gahunda | Igipimo cyo gukonjesha | Gukonjesha vuba hagati y'inzira |
| Gusudira (ERW) | Umuyoboro wa Eddy (100%) | Ubusudizi bw'ubudozi |
| Gusudira (EFW/LSAW) | PAUT 100% (Phased Array UT) | Kumenya ibice by'ubutare n'ibisembwa byo gusudira |
| Gusudira (EFW/LSAW) | RT (100% ku cyiciro cya 1) | Ubwiza bw'ubushude |
| Gusudira | Irangi rivamo irangi (PT) | Uduce tw'ubuso |
| Nyuma yo Gufata Umuti | Igipimo cya Ferrite (ASTM E562) | 40-60% (intego 45-55%) |
| Nyuma yo Gufata Umuti | Ikizamini cy'Ubukomere | ≤ 90 HRB (cyangwa 290 HV) |
| Nyuma yo Gufata Umuti | Imiterere mito (SEM/EDS) | Nta sigma, chi, cyangwa R-phase |
| Umuyoboro warangiye | Ikizamini cy'amazi | Ubusugire bw'igitutu |
| Umuyoboro warangiye | Charpy kuri -46°C (gusudira + HAZ) | ≥ 27 J (ubusanzwe 60-120 J) |
| Umuyoboro warangiye | Ikizamini cyo kwangirika kw'igisasu (Uburyo bwa ASTM G48 A) | Nta gupfunyikaho ibinogo kuri 40°C, amasaha 24 (bikabije kurusha kuri 2205) |
| Umuyoboro warangiye | CPT (Ubushyuhe Bukomeye bwo Gutemba) | Ubushyuhe burenze 80°C mu mazi y'inyanja (ku bwumvikane) |
| Umuyoboro warangiye | PMI (XRF) | Emeza amanota (Cr, Mo, N) |
| Umuyoboro warangiye | Ishusho n'Ibimenyetso | Gukurikirana |
Ibizamini by'ubushake kuri serivisi z'ingenzi zo mu mazi (NORSOK M-650):
Igipimo cya Ferrite ku isudira (imyanya 5 ku isudira)
Imiterere mito y'ibyiciro by'imitsi (sigma, chi, R-phase) – 500x na 1000x
Uburyo bwo gukomerera bunyura mu gusudira (nta bushobozi bwagutse bwa 320 HV)
Gupima ingese mu mazi yo mu nyanja yifashishijwe chlorine
Ikizamini cyo gucika kw'ibinure biterwa na hydrogen (HIC) (kugira ngo umenye serivisi yo gukaraba)
Porogaramu z'ibanze - Umuyoboro wa ASTM A790 S32750 Welded Super Duplex Stainless Steel Pipe
Ibikoresho bya peteroli na gaze byo mu mazi (amazi yo mu nyanja ashyushye cyane):Pompe zizamura amazi yo mu nyanja (umuvuduko wa bar 10-20, ubushyuhe bwa 30-50°C), sisitemu z'amazi yo kuzimya umuriro, imiyoboro y'amazi akonjesha. S32750 irwanya imyobo iyo ubushyuhe bwinshi burenze aho 2205 ishobora kwangirika.
Imiyoboro y'amazi yo mu nyanja ikoresha umuvuduko mwinshi wa osmosis (SWRO):Imirongo yo kugaburira no kwanga ikora kuri bar 70-100 (1,000-1,500 psi) hamwe n'amazi menshi ya chloride (kugeza kuri 70,000 ppm TDS). Ingufu nyinshi za S32750 zemerera inkuta zoroshye.
Sisitemu zo gukuraho imyuka ihumanya ikirere (FGD):Imirongo yo kugarura umwuka, imiyoboro yo gutera imiti, n'ibikoresho byo mu mwuka bigabanya ubushyuhe mu nganda zikoresha amakara. Irwanya aside chloride nyinshi (pH 1-3, Cl⁻ kugeza kuri 100.000 ppm).
Umusaruro w'ingufu zikomoka ku bushyuhe:Imirongo yo gukuramo amazi n'imiyoboro yo kuyashyiramo (ubushyuhe bwinshi kugeza kuri 150°C, koloride nyinshi, CO₂ nyinshi, trace H₂S). S32750 irwanya imyobo na SCC.
Imashini zo gukaraba umwotsi wo mu mazi (gukuraho SOx):Imashini zo gusukura zifunze zifite amazi yo mu nyanja. S32750 irwanya aside sulfuriki ihunduka na kloride.
Gutunganya imiti:Gukora aside fosforike (uburyo butose), dioxyde ya titanium (inzira ya kloride), na kloride y’umwimerere. S32750 irwanya ibitero bigabanya aside.
Imirongo yo munsi y'inyanja n'imirongo yo kugenzura:Umuyoboro muto w'ubugari (1/2″ kugeza 2″) wo guteramo amazi n'imiti mu bibanza bya peteroli na gaze mu mazi y'ubujyakuzimu.
Serivisi y'uburozi ifite H₂S nyinshi na chloride nyinshi:NACE MR0175 yujuje ibisabwa kugira ngo ikoreshwe mu gushyuha igice cya H₂S kugeza kuri bar 1 mu mazi akozwemo chloride nyinshi.
Gupakira no Kohereza – Umuyoboro wa ASTM A790 S32750 Welded Super Duplex Pipe
Gupfunyika:
Ubwirinzi bwo kurwanya ingese:Impapuro za VCI cyangwa plastike (nta mavuta akoreshwa mu bikoresho byoroshye). Ku mifuka ya plastike yo mu mazi, ifunze neza.
Ingofero z'inyuma:Ingofero z'icyuma kidasesagura cyangwa za pulasitiki zikomeye (zifite ibara ry'ibara rya super duplex - ubusanzwe ni ubururu cyangwa umuhondo).
Guhuza (Ubugari buto):Imipfunyika irimo imishumi y'icyuma n'impapuro zifatanye. Buri muyoboro utandukanye ukwawo.
Udupaki twihariye (Ubugari bunini):Igipfunyika cya pulasitiki kirimo impeta za foam hagati y'imiyoboro.
Amasanduku y'ibitiku mishinga y'ingenzi yo mu nyanja na NORSOK M-650.
Kohereza:
Ibikoresho bifite uburebure bwa ≤ 610mm, bigabanya ubunini ku ngano nini.
Inyandiko:MTC 3.1/3.2 (EN 10204), raporo y'ibizamini bya hydrotest, raporo za PAUT/RT, raporo y'ibipimo bya ferrite, raporo ya PMI, raporo za Charpy (base + weld), raporo y'ibice bya G48, raporo y'imiterere mito (niba bikenewe), raporo y'ibipimo, urutonde rw'ibipakiye, dosiye ya COO. NORSOK M-650 iyo ubisabye.
Ibyiza n'Ibibazo Bikunze Kubazwa mu byuma bya Womic Steel - Umuyoboro wa ASTM A790 S32750 Super Duplex Welded
Kuki wafatanya na Womic Steel kuri S32750 Super Duplex?
Ingano yuzuye: ERW 1/4″ – 24″, EFW/LSAW 8″ – 60″.
Gufunga byuzuye nyuma yo gusudira (1070-1120°C, kuzimya amazi).
Gupima ferrite mu nzu no gusuzuma imiterere mito (SEM/EDS).
NORSOK M-650 yujuje ibyangombwa byo mumirenge ya Noruveje.
Kwemererwa kwa DNV GL ku miyoboro ya super duplex.
Isuzuma ry'ubushyuhe bw'umuyoboro w'amazi (CPT) rirahari (ASTM G48 Uburyo D).
Icyemezo cya serivisi nziza (NACE MR0175/ISO 15156).
Igihe cyo gutanga serivisi: iminsi 40-50 kuri ERW, iminsi 50-70 kuri EFW/LSAW.
Ibibazo Bikunze Kubazwa (Ibibazo Bikunze Kubazwa) - Umuyoboro wa ASTM A790 S32750 Super Duplex Welded
Q: Ni irihe tandukaniro riri hagati ya S32750 na S32760?
A: Byombi ni ibintu bibiri bifite imiterere isa. S32760 ubusanzwe irimo umuringa muto (0.5-1.0%) na tungsten (0.5-1.0%), bishobora kongera ubushobozi bwo kurwanya ingese mu bintu bimwe na bimwe bigabanya aside. S32750 ikoresha azote nyinshi (0.24-0.32% ugereranije na 0.20-0.30%) kandi nta tungsten ifite. Byombi bifite PREN ≥ 40. S32750 ikunze kugaragara cyane muri Amerika na Aziya; S32760 ikunze kugaragara cyane mu Burayi. Womic ishobora gutanga byombi; garagaza icyo ukeneye.
Q: Ni ubushyuhe ntarengwa bwa serivisi ya S32750 ni ubuhe?
A: S32750 ikwiriye gukoreshwa mu mazi yo mu nyanja kugeza kuri 80°C (ubushyuhe bukomeye bwo gushyiramo imyobo > 80°C). Ku bidukikije bidafite chloride, ishobora gukoreshwa kugeza kuri 280°C. Hejuru ya 280°C, habaho gucika intege bitewe no gushinga sigma phase. Ku bipimo by'ubushyuhe bwinshi (> 300°C), ni byiza gukoresha alloys zishingiye kuri nikeli (Alloy 625, C-276).
Q: Kuki gufunga umuti ari itegeko ku muyoboro wa super duplex welded?
A: Super duplex ifite chromium na molybdenum nyinshi, bigatuma igwa cyane muri HAZ iyo ubukonje butinze cyane. Gushyira umuti ku bushyuhe bwa 1070-1120°C bishongesha ibice byose bya intermetallic kandi bigasubiza ferrite/austenite. Iyo hatabayeho gufunga neza umuti, umuyoboro ntuzakira ingese neza kandi ntugire ubukana bwinshi. Womic ikora gufunga neza umuti ku miyoboro yose ya super duplex welded.
Q: Ese S32750 ishobora gukoreshwa muri serivisi ya sour (H₂S)?
A: Yego, S32750 yujuje ibisabwa kugira ngo ikoreshwe muri NACE MR0175/ISO 15156 ku gitutu cy’igice cya H₂S kugeza kuri 1.0 bar (15 psi) mu byiciro byihariye by’ubukomere (≤ 28 HRC). Womic itanga S32750 ifite ubukomere ≤ 27 HRC n’isuzuma ryuzuye rya HIC/SSC iyo ubisabye. Ku bijyanye na H₂S iri hejuru cyane (> 1 bar), hashobora kuba hakenewe alloys zishingiye kuri nikeli.
Q: Ni iki gipimo cy’ubudahangarwa bw’imiyoboro y’amazi (PREN) cya S32750?
A: PREN = Cr% + 3.3 (Mo%) + 16 (N%). Kuri S32750 ifite imiterere y’amazina 25% Cr, 4% Mo, 0.27% N, PREN ≈ 25 + 13.2 + 4.3 = 42.5. PREN ntoya kuri ASTM ni 40. Ibi biri hejuru cyane kurusha 2205 (PREN 35-38) kandi biri hejuru cyane kurusha 316L (PREN 24-26). S32750 ishobora kwihanganira koga mu mazi yo mu nyanja kugeza kuri 80°C.
Q: Ese mutanga icyemezo cya NORSOK M-650?
A: Yego. Womic Steel yujuje ibisabwa kuri NORSOK M-650 ku miyoboro ya super duplex stainless steel welded. Dutanga inyandiko zuzuye zirimo gupima ferrite (weld, HAZ, base metal), uburyo bwo gukomereka, gusuzuma microstructure (500x na 1000x ku byiciro bya intermetallic), no gupima corruption. Ibi ni ngombwa ku mishinga yo mu nyanja iri ku mugabane wa Noruveje.
Q: Ni ryari igihe gisanzwe cyo gukoresha umuyoboro wa S32750 super duplex welded gikoreshwa?
A: Iminsi 40-50 kuri ERW (ubugari buto kugeza ku buringanire), iminsi 50-70 kuri EFW/LSAW (ubugari bunini). Inyandiko za NORSOK M-650 zongerera iminsi 15-20. Igenzura ry’umuntu wa gatatu ryongera iminsi 7-14. Igihe cyo gukoresha icyuma gipima ubugari ni kirekire kurusha icya kabiri bitewe n’uko icyuma cyihariye gikoreshwa mu gusana ibyuma biva mu nganda zemewe.
Q: Ni ubuhe buryo bwo gusudira busabwa kuri S32750?
A: Icyuma cyo gusogongera cya AWS A5.9 ER2594 (cyangwa ERNiCrMo-13) kirakenewe kugira ngo hahuzwe imiterere ya super duplex. Womic ikoresha ER2594 ku mizi ya TIG na SAW fill passes. Dutanga kandi ingero z'ubuziranenge bw'uburyo bwo gusudira (WPQ) hamwe na WPS isabwa mu gusudira mu murima.
Icyitonderwa cy'umushinga - Imashini zo kugabanya amazi yo mu nyanja zo mu karere ka Arabian Seawater Lift & Firewater System (UAE)
Igihugu:Ibihugu by'Abarabu (Abu Dhabi, ikibuga cya peteroli cyo mu nyanja)
Igipimo n'Icyiciro:ASTM A790 S32750 (Super Duplex 2507) – NORSOK M-650 yujuje ibisabwa
Ingano n'ingano:
OD 219.1mm (8″) × Gahunda ya 40S (Uburemere bwa 8.18mm) – metero 1.200 (hafi toni 40) – Uburyo bwa EFW
OD 323.9mm (12″) × Gahunda ya 40S (10.31mm WIT) – metero 800 (hafi toni 58) – Uburyo bwa EFW
OD 88.9mm (3″) × Gahunda 80S (7.62mm WIT) – metero 2,500 (hafi toni 35) – Uburyo bwa ERW
OD 60.3mm (2″) × Gahunda 80S (5.54mm WIT) – metero 3.000 (hafi toni 23) – Uburyo bwa ERW
Igiteranyo:Metero 7.500 (7.5 km), hafi toni 156
Ibisobanuro:Ingano ya ASTM A790 S32750 yakuwemo amazi n'ibinyampeke, ivanze n'amazi. Isuzuma rya Hydrostatic. PAUT 100% ku miyoboro ya EFW, umuyoboro wa eddy + UT kuri ERW. PMI kuri buri muyoboro. Igipimo cya ferrite gitegetswe (40-60%, cyagezweho 45-55%). Ingaruka za Charpy kuri -46°C (spec 27J, cyagezweho 90-160J). Isuzuma rya corrosion kuri ASTM G48 Uburyo A kuri 40°C (birenze 22°C bisanzwe) - nta mwobo. Ubushyuhe bw'imyobo (CPT) kuri ASTM G48 Uburyo D - bwagezweho CPT ≥ 85°C. Inyandiko za NORSOK M-650 zirimo gusuzuma imiterere mito (nta bice bya sigma/chi) n'ubukana. Igenzura rya gatatu ryakozwe na DNV UAE. NACE MR0175 iyubahirizwa rya serivisi ya sour (trace H₂S mu mazi yakozwe).
Porogaramu:Umuyoboro w'amazi yo mu nyanja uterura amazi n'umuyoboro w'amazi y'umuriro ku rubuga rukora peteroli mu nyanja mu kigobe cy'Abarabu. Ubushyuhe bw'amazi yo mu nyanja: 35-40°C mu mpeshyi (kugeza kuri 42°C), umunyu 45.000-50.000 ppm, hamwe na chlorine (0.5 ppm Cl₂ isigaye). Sisitemu itanga amazi akonje yo gutunganya ibikoresho n'amazi y'umuriro kugira ngo umutekano w'uru rubuga ukomeze. Imiyoboro ya kabiri ya 2205 yabanje yahuye n'ibinogo nyuma y'imyaka 5 bitewe n'ubushyuhe bwinshi bw'amazi yo mu nyanja n'chlorine. S32750 yatoranijwe kubera ubushyuhe bwayo bwo hejuru bw'ibinogo (> 80°C ugereranije na 2205's 50-60°C) n'imbaraga nyinshi.
Ibibazo bya tekiniki n'ibisubizo:
Amazi yo mu nyanja afite ubushyuhe bwinshi (kugeza kuri 42°C) hamwe na chlorine– Amazi yo mu nyanja yo mu nyanja ya Arabiya mu mpeshyi agera kuri 40-42°C, kandi chlorine yo kurwanya ogisijeni yongera ubushobozi bwo kugabanya ogisijeni. Duplex isanzwe ya 2205 ifite CPT ya 50-60°C, ikaba ari yo iri ku mupaka. S32750 ifite CPT ≥ 85°C itanga ikigereranyo. Womic yakoze G48 Uburyo D bwo gusuzuma CPT: ubushyuhe bukomeye bwapimwe 85-92°C. Yanakoze isuzuma ryo gupima imyobo kuri 40°C mu gihe cy'amasaha 72 – nta myobo yapimwe. Umukiriya arabyemerewe.
Kugenzura cyane ferrite n'imiterere mito– NORSOK M-650 isaba ferrite hagati ya 40-60% kandi nta n'ibyiciro by'ibyuma bivanze. Womic yapimye ferrite kuri 20% by'imiyoboro (weld + HAZ + base metal). Ibisubizo: weld 48-54%, HAZ 45-52%, base metal 47-56%. Isuzuma rya microstructure (500x na 1000x) nta sigma, chi, cyangwa R-phase ryagaragaje. Ubukomere ntarengwa bwa 285 HV10 (buri munsi cyane y'umupaka wa 320 HV).
Impamyabushobozi yo gusudira mu gusana imirima– Gushyiraho urubuga byasabaga gusudira super duplex. Womic yatanze WPS ikoresheje ER2594 filler, hamwe n'ubushyuhe butanga ≤ 1.5 kJ/mm, interpass ≤ 100°C, na azote backing gaze. Twatanze coupons 30 zo gusudira kugira ngo tumenye neza. Byose byatsindiye radiography, PT, Charpy kuri -46°C (weld 80-120J, HAZ 90-130J), hamwe n'ibipimo bya ferrite.
Igishushanyo mbonera cyoroheje gikoresheje Gahunda ya 40S– Ingufu nyinshi za S32750 (umusaruro wa 550 MPa) zemereraga ikoreshwa rya Schedule 40S aho gukoresha Schedule 80S nini yakoreshejwe muri 2205. Ibi byagabanyije uburemere bw'imiyoboro ho 35%, bigabanya toni 25 z'ibyuma by'ubwubatsi kuri urwo rukuta. Womic yatanze raporo zo kugenzura ingano.
Ibikoresho bijya ku rubuga rw'ibicuruzwa mu mahanga– Imiyoboro yoherejwe iva i Shanghai ijya Abu Dhabi, hanyuma ijyanwa ku kibuga cy’inyanja ikoresheje ubwato butanga ibicuruzwa. DNV yabonye uburyo bwo gupakira no kubika. Toni 156 zose zatanzwe mu buryo bubiri mu byumweru 6. Ipaki y’inyandiko ya NORSOK M-650 (amapaji 550) yatanzwe mu buryo bw’ikoranabuhanga mu minsi 10 uhereye igihe yoherejwe.
Ibisubizo:Sisitemu yo kuzamura amazi yo mu nyanja n'amazi yo kuzimya umuriro yashyizweho mu gihembwe cya kane cya 2023. Nyuma y'amezi 18 ikora, ubushyuhe bw'amazi yo mu nyanja bugera kuri dogere selisiyusi 42, igenzura ryakozwe hakoreshejwe imodoka ikoresha ikoranabuhanga rya kure (ROV) ryagaragaje ko nta mwobo warimo, nta kwangirika kw'imiyoboro, kandi nta kwangirika kwabyo byagaragaye. Iyi serivisi yavuguruye ibikoresho byayo byose ku mazi yo mu nyanja yo mu kigobe cya Arabiya kuri S32750 kugira ngo ikoreshwe ku mbuga nshya. Womic Steel yongewe ku rutonde rw'abatanga serivisi bemerewe n'iyi serivisi kugira ngo bakore imiyoboro minini ya duplex munsi ya NORSOK M-650.
Umuntu wo kuvugana nawe:
Urubuga: www.womicsteel.com
Imeri: sales@womicsteel.com
Terefone / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Umufatanyabikorwa wawe wizeye ku miyoboro ya ASTM A790 S32750 super duplex stainless steel welded yo mu mazi yo mu nyanja ashyushye cyane, ku mbuga zo mu nyanja, kugabanya umunyu, gukoresha FGD, no gukoresha ingufu z'amashanyarazi ku isi yose.
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