API 5L X70 LSAW Steel Pipe: Kugona Kugadzira & Magadzirirwo Echigadzirwa

Tsananguro pfupi:

Womic Steel inopa pombi yesimbi yemhando yepamusoro yeAPI 5L X70 (L485) LSAW yekutapurirana gasi remhepo ine simba rakawanda, tambo dzematrunk dzakakura, uye mapurojekiti anoda simba rekunze kwenyika. X70 inopa simba rekugadzira goho re485 MPa (70,300 psi), zvichiita kuti ukobvu hwemadziro huderere ne25-30% zvichienzaniswa neX60 uye 35-40% zvichienzaniswa neX52. Maitiro eLSAW anosanganisira nzira dzeJCOE, UOE, uye nzira dzekubatanidza maplate akaputirwa, zvese zvichipa musono wakatwasuka une hunhu hwepamusoro hweweld. Kune dhayamita hombe kana ukobvu hwemadziro hwakakura (kusvika 50.8mm yeJCOE/UOE, kusvika 70mm yeplate yakaputirwa), Womic inoshandisa mapurati eTMCP epamusoro uye welding yearc yakaputirwa ine multi-pass ine control yakasimba yekupisa. Dhayamita yekunze kubva pa406mm kusvika 1,600mm (16″ - 63″), ukobvu hwemadziro kubva pa6.0mm kusvika 70mm, kureba kusvika 24m. Chitupa chemugayo, bvunzo yemvura, 100% ultrasonic ine TOFD, magumo akachekwa, uye anti-corrosion coating (3LPE, 3LPP, FBE) zviripo. Zvakakodzera mitsetse yemagetsi ine pressure yakanyanya (kusvika 20 MPa), mapaipi emuchadenga anofamba daro refu (anopfuura 1,000 km), sour service (PSL2 ine HIC/SSC), uye mashandisirwo eArctic ane tembiricha yakaderera kusvika -60°C.

Saizi yepombi yesimbi yeLSAW:Dhayamita yekunze: 406mm – 1,600mm (16″ – 63″), Ukobvu hwemadziro: 6.0mm – 70.0mm (JCOE/UOE yakanyanya 50.8mm, plate yakakungurutswa yakanyanya 70mm), Kureba: 6m – 18m yakajairwa, urefu hwakatarwa hunosvika 24m

Standard & Grade yeLSAW Steel Pipe:API 5L X70 PSL2 (PSL1 haiwanzo shandiswa paX70); zvakare yakapihwa L485 zvichienderana neISO 3183; DNV-OS-F101 L485 yekunze kwenyika

Kushandiswa kweLSAW Steel Pipe:Mitsetse yekutakura gasi rechisikigo inomanikidzwa zvakanyanya kure (15-20 MPa), mapaipi makuru epakati penyika, mapaipi ekuburitsa gasi kunze kwenyika mumvura yakadzika, kutakurwa kwegasi rinopisa (nzvimbo yeH₂S), mapaipi eCO₂ ane simba guru rekutora nekuchengetera kabhoni (CCS), mapaipi egasi reArctic, mapurojekiti ekuwedzera mapaipi anoda dhizaini yakavakirwa pastrain.

Simbi yeWomic inopa mitengo yepamusoro uye inokwikwidzana yemapaipi esimbi eAPI 5L X70 LSAW, pombi yakasungirirwa yesimbi yakasungirirwa yakatwasuka, pombi yemutsetse weUOE, pombi yekabhoni inorema pamadziro, pombi yemutsetse weganda reJCOE, pombi yebasa rakakora. Chitupa chemugayo EN 10204 3.1/3.2, bvunzo yemvura, UT/TOFD, magumo akachekwa, 3PE/3LPP/FBE coating iripo. Kuwanikwa kwepombi yeEPC nemapurojekiti ekunze kwenyika pasi rese.

Tumira email kwatiri Zvimiro zveChigadzirwa

Ruzivo rweChigadzirwa

Matagi eChigadzirwa

1. Simbi yeWomic: Kugona Kugadzira & Simba reKambani

Womic Steel Group inoshandisa mitsetse yakawanda yekugadzira yeLSAW ine hunyanzvi hwepamusoro hwekugadzira X70 yakasimba. X70 inoda maplate akagadziriswa nethermomechanically controlled (TMCP), inotonhodza nekukurumidza, uye inogadzirisa zvakanyanya kupisa.

●Mutsetse weJCOE:Kune dhayamita 406mm – 1,422mm (16″–56″), ukobvu hwemadziro hunosvika 50.8mm. Kugadzira JCO nhanho nhanho nekuwedzera kwemuchina. Kupinza kupisa panguva yekubatanidza SAW kunogumira pa ≤ 2.5 kJ/mm.

● Mutsetse weUOE:Kune dhayamita 508mm – 1,220mm (20″–48″), ukobvu hwemadziro hunosvika 40mm. Kugadzira U kunotevera O-forming nekuwedzera kwe hydraulic. Kutenderera kwepamusoro (±0.15% OD). Inofarirwa neX70 nekuda kwehunhu hwayo hwemakanika hwakafanana.

● Purati Yakamonerwa (Musono Mumwe Chete):Kune dhayamita 600mm – 1,600mm (24″–63″), ukobvu hwemadziro hunobva pa25mm kusvika pa70mm. Pureti imwe chete inomonererwa musirindiri. Inoshandiswa pakushandisa madziro ane huremu hweX70.

● Purati Yakamonerwa (Musono Wakakombama):Kune ukobvu hwemadziro > 50.8mm kusvika 80mm. Inoshandiswa pamapaipi eCO₂ ane simba rakawanda.

Huwandu hwese hweLSAW hunopfuura matani 300,000 pagore, nekugadzirwa kweX70 kwakatsaurirwa kunodarika matani 50,000 pagore. Womic Steel ine API 5L Monogram (yakasimbiswa neX70 PSL2), ISO 9001, CE PED, DNV GL mvumo, uye inoongororwa nguva dzose nemakambani makuru emafuta. Rekodhi yepasi rose nemapaipi eX70 anodarika 800 km anopiwa.

Kuchinjika Kwekugadzira kweX70:

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

● UOE: 508–1,220mm OD × 6.0–40.0mm Uzito × ≤ 24m (kutenderera ±0.15%)

● Pureti yakamonerwa (musono mumwe chete): 600–1,600mm OD × 25–70mm Uremu × ≤ 12m

● Pureti yakamonerwa (musono wakakombama): 1,000–2,000mm OD × 25–80mm Uremu × ≤ 12m

Mapaipi ese eX70 ane 100% automated UT ine TOFD, Charpy impact testing patembiricha yakatarwa, uye DWTT yekudzivirira kupararira kwemapundu. PWHT inoiswa kana ichidikanwa kuti ishandiswe seyakakora.

2. API 5L X70: Kuumbwa kweZvinhu & Hunhu hweKushanda

API 5L X70 (L485) ipombi ine simba guru yakagadzirirwa kutapurirana gasi rinomanikidzwa zvakanyanya kure. Simba shoma rekupa gasi rinosvika 485 MPa (70,300 psi) uye simba rekudhonza rinosvika 570 MPa (82,700 psi). X70 inogadzirwa uchishandisa TMCP yepamusoro ine kutonhora kwakanyanya kuti igadzire acicular ferrite kana bainitic microstructure. PSL2 inosungirwa kuX70; PSL1 haimboshandiswi.

Kuumbwa kweMakemikoro (Kuongororwa kweMatanda, % yepamusoro nehuremu - PSL2):

Chinhu	API 5L X70 PSL2 (yakanyanya %)	Basa reSour (chinangwa chakajairika)
C	0.12	≤ 0.08
Mn	1.70	≤ 1.50
P	0.025	≤ 0.015
S	0.015	≤ 0.002
Si	0.45	0.15-0.35
V	0.10	≤ 0.06
Nb	0.08	0.04-0.07
Ti	0.04	≤ 0.025
Mo	Hazvina kutaurwa	≤ 0.35 (yezvinovava)
Ni	Hazvina kutaurwa	≤ 0.50 (yekupisa kwakaderera)
Cu	Hazvina kutaurwa	≤ 0.30
Cr	Hazvina kutaurwa	≤ 0.30
CEV	≤ 0.43 (yakajairika ≤ 0.41)	≤ 0.40 (yakajairika ≤ 0.38)
Pcm	≤ 0.25	≤ 0.22

Kuti ishandiswe zvakanaka, Womic inoshandisa low-carbon (C ≤ 0.06%), ultra-low sarufa (S ≤ 0.0015%), maplates ane calcium ane CEV ≤ 0.38%.

Zvimiro zveMichina (Kupisa Kwemukamuri - PSL2):

Pfuma	API 5L X70 PSL2
Simba reKubereka (min)	485 MPa (70,300 psi)
Simba reKubereka (rakanyanya)	605 MPa (87,800 psi)
Simba reKusimba (miniti)	570 MPa (82,700 psi)
Simba reKusimba (rakanyanya)	760 MPa (110,200 psi)
Chiyero cheGoho (chakanyanya)	0.93
Kureba (miniti)	18% (yegeji ye50mm)
Kuoma (kwakanyanya)	90 HRB (yakaonda: 85 HRB yakajairika)
Kusimba Kwemhedzisiro (min)	27 J @ 0°C (kazhinji: 100-200J)

Kuenzanisa neX65 neX80:

Giredhi	Goho reMPa	MPa inonamira	Chiyero cheGoho	Kushandiswa Kwakajairika
X65	450	535	≤ 0.93	Mvura yakadzika, ine kumanikidzwa kwakanyanya
X70	485	570	≤ 0.93	Kumanikidzwa kwakanyanya, daro refu
X80	555	625	≤ 0.93	Kureba kwazvo, kumanikidzwa kwakanyanya

3. Kutevedzera Dimensional Range & Standards

Chinhu	Tsanangudzo
Zvakajairika	API 5L PSL2 (X70 inongopihwa sePSL2 paAPI 5L)
Maitiro Ekugadzira	JCOE, UOE, ndiro yakakungurutswa (musono mumwe chete/wakapetwa kaviri)
Dhayamita Yekunze	406mm – 1,600mm (16″ – 63″)
Ruvara rweMadziro	JCOE/UOE: 6.0mm – 50.8mm; Ndiro yakamonerwa: 25mm – 70mm (kusvika 80mm yakagadzirwa)
Hurefu hwehurefu	Yakajairwa: 12m, 18m; Yakatambanudzwa: kusvika 24m (UOE)
Kupedzisa Kupedzisa	Mugumo Wakachekwa (BE) pa API 5L (muganho we30°, 1.6mm)
Kupedzisa Kwepamusoro	Bare, 3LPE, 3LPP, FBE (kufukidza kunodiwa pamapaipi mazhinji eX70)
Kushivirira	OD: ±0.5% kana ±3.2mm; Huremu: -0% / +15%; Kureba: +50mm / -0mm
Kubuda kweOvality (UOE)	≤ 0.2% yegungwa, ≤ 0.3% yegungwa

4. Zviyero & Magadzirirwo Anowanikwa - API 5L X70 LSAW Steel Pipe (Saizi Dzakajairwa Dzakasarudzwa)

OD (mm)	Sarudzo dzeWT (mm)	Maitiro	Huremu hunenge (kg/m2)	Kureba Kwakajairwa	Kushandiswa Kwakajairika
406	8.0, 10.0, 12.5, 14.0, 16.0	JCOE/UOE	78.5 – 153.9	12m / 18m	Gas lateral
508	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	UOE	122.8 – 263.8	12m / 18m / 24m	Mutsetse wehunde
610	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	UOE	184.2 – 366.2	12m / 18m / 24m	Hunde huru
711	14.0, 16.0, 19.0, 22.0, 25.4, 28.0	UOE	240.7 – 471.7	12m / 18m	Kuyambuka makomo
813	16.0, 19.0, 22.0, 25.4, 30.0, 32.0	JCOE/UOE	314.4 – 616.2	12m / 18m	Gasi rine huwandu hwakawanda
914	19.0, 22.0, 25.4, 30.0, 35.0, 38.0	JCOE/UOE	419.5 – 820.9	12m / 18m	Kutumira kunze kwenyika
1,016	22.0, 25.4, 30.0, 35.0, 40.0, 45.0	JCOE/Yakamoneredzwa	539.2 – 1,078.2	12m	Mvura yakadzika
1,220	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Yakakungurutswa (imwe chete)	748.4 – 1,450.5	12m	Nhanho refu
1,422	30.0, 35.0, 40.0, 45.0, 50.0, 55.0	Yakakungurutswa (imwe chete)	1,030 - 1,856	12m	Kumanikidzwa kwakanyanya kwazvo

Mapaipi eX70 anowanzo kuve ePSL2 ane Charpy impact testing. Mapaipi eX70 anorema (≥ 30mm) anoda PWHT kuti ashande zvakanaka. Mapaipi ese eX70 anoda 100% UT ine TOFD neDWTT kuti adzore kutyoka.

5. Mitemo Yakafanana & Magiredhi - LSAW High-Strength Line Pipe

Zvakajairika	Magiredhi eSimbi	Kushandiswa Kwakajairika	Maitiro Ekuumba
API 5L PSL2	X70 (L485), X80 (L555)	Gasi rekufamba kure	UOE/JCOE
ISO 3183	L485, L555	Mapurojekiti epasi rose	UOE
DNV-OS-F101	L485, L555	Mapaipi epasi pegungwa	UOE
CSA Z245.1	Giredhi 483 (X70)	Mapaipi ekuCanada	UOE
GOST R 52079	K60 (yakaenzana neX70)	Mapaipi eRussia	JCOE
NORSOK M-120	X70	Mapombi epuratifomu yekunze kwenyika	UOE

Pfupiso yekushandiswa:Mitsetse yekutakura gasi inofamba nemhepo ine simba guru, mapaipi emunyika anopfuura 1,000 km, kutengeswa kwegasi mumvura yakadzika, sevhisi yemvura yakakora, mapaipi eCO₂.

6. Maitiro Ekugadzira - LSAW (UOE / JCOE / Rolled Plate) yeX70 Steel Pipe

X70 inoda ma TMCP plates ane kutonhora kwakakurumidza, kupisa kwakaderera zvakanyanya panguva yekubatanidza SAW (≤ 2.2 kJ/mm), uye kudzora tembiricha kwakasimba (≤ 150°C). UOE inofarirwa kupfuura JCOE yeX70 nekuda kwekudzora kuri nani.

Maitiro eUOE (508–1,220mm OD, 6.0–40mm WT) – Inokurudzirwa kuX70:

● Kugaya mativi eplate (J-bevel, ± 0.3mm chaiyo)

● Kudzvanya kweU (simba re4000t)

● O-press (simba re6000t)

● Kuwedzera kwemuchina (zvikamu 72, kuwedzera kweOD kwe1.0-1.2%)

● Inner SAW: kupisa kwemukati ≤ 2.2 kJ/mm, interpass ≤ 150°C

● Kuboora musana (kwemuchina, kwete kupisa)

● KUSAWWA KWEKUNZE: kupinza kwemhepo yakawanda, kupisa kwemhepo ≤ 2.2 kJ/mm, mwero wekutonhodza unotariswa

● Kuongorora kwekupedzisira kwehukuru: ovality ≤ 0.15-0.20%

Maitiro eJCOE (406–1,422mm OD, 6.0–50.8mm WIT):

● Kugadzira zvishoma nezvishoma ne toni yakaderera

● Yakakodzera X70 iri pamhenderekedzo yegungwa apo ovality ≤ 0.3% inogamuchirwa

● Zvinhu zvakafanana zvinodzora welding seUOE

Purati Yakamoneredzwa (Musono Mumwe Chete) weMadziro Anorema X70 (600–1,600mm OD, 25–70mm WIT):

● Kukotama kwe4-roll nekuyera kutenderera mukati mekuita

● Kuona mapasi akawanda (pasi 4 pa40mm WT)

● PWHT inosungirwa pakugadzira madziro ane ukobvu hwe ≥ 25mm kuti ashande zvakanaka

● Inoshandiswa pakushandisa CO₂ ine simba rakawanda uye kubaya mvura

Kurapa Kupisa Mushure meWeld (PWHT):Pabasa reX70 sour, PWHT inoiswa pamadziro ese akakora ≥ 20mm (mutengi anowanzo tsanangura ukobvu hwese). Kunyorova tembiricha 570-590°C (yakaderera pane X65 kudzivirira kutonhora zvakanyanya). Nguva yekubata awa imwe pa25mm. Mwero wekutonhodza ≤ 100°C paawa. Kuoma mushure mePWHT: ≤ 85 HRB.

Kuedzwa kweKudzora Kutyoka kweX70:

● Charpy V-Notch pa -20°C, -46°C, kana -60°C (kazhinji: 100-200J)

● DWTT (Kuyedzwa kweKudonhedza Kurema) pa -20°C kana tembiricha yekuyedza: nzvimbo yekuchekerera ≥ 85% yemuviri wepombi, ≥ 70% yeweld

● CTOD (Kubviswa Kwemaburi Epakona) yezvinokwira zvekunze kwegungwa (≥ 0.25mm pa -20°C)

7. Maitiro Ekuongorora Hunhu uye Kuedza Pipe yesimbi yeAPI 5L X70 LSAW

Danho	Nzira yekuongorora	Chinangwa
Ndiro	Kuongorora Makemikari (OES)	Simbisai miganhu yeX70 (C yakaderera, CEV ≤ 0.43)
Ndiro	Ultrasonic (100% lamination test)	Tsvaga ma lamination
Ndiro	Kusimba (L+T) + CVN pa -20°C	Hunhu hwemakanika, kuomarara
Ndiro	Saizi yezviyo (ASTM E112)	Tsanga yakanaka (ASTM 11 kana yakapfava)
Panguva yekuumbwa	Kutarisa kunoenderera mberi kwehukuru	OD, ovality, kurongeka kwemucheto
Musono we weld	100% UT otomatiki ine TOFD	Tarisa zvikanganiso zvese zve weld
Musono we weld	RT (10-100% sezvakatsanangurwa)	Kusimbiswa kwemhando ye weld
Musono we weld	MPI (zvigunwe/HAZ)	Matsemuka epamusoro
Musono we weld	Kuoma kwenzira (BM, HAZ, WM)	Basa remushonga (≤ 85 HRB)
Pombi yapera	Kuedzwa kweHydrostatic (90-100% SMYS)	Kutendeseka kwekumanikidzwa
Pombi yapera	Charpy V-Notch patembiricha yakatarwa (min 27J)	Kusimba kwekupisa kwakaderera
Pombi yapera	DWTT pane tembiricha yakatarwa (≥ 85% SA)	Kupararira kwekukuvara
Pombi yapera	Kukombama Kunotungamirirwa / Kukweva	Kugona kuita zvinhu
Pombi yapera	CTOD (yekunze kwenyika)	Kusimba kwekutyoka
Pombi yapera	Kuonekwa & kunyorwa nenhamba yekupisa	Kutevedzana

Zvinosungirwa kuX70 PSL2:

● 100% UT yemusono we weld (haigone kuva isina kujeka)

● Kuedzwa kwemvura

● Charpy impact (maseti matatu mashoma)

● Yebasa rine munyu: HIC, SSC, PWHT, kuomarara ≤ 85 HRB

Kuyedzwa kweCTOD, ovality ≤ 0.2%

8. Mashandisirwo Ekutanga - API 5L X70 LSAW Steel Pipe

●Mitsetse yehuni yegesi inomanikidzwa zvakanyanya kure– Kumanikidzwa kwekushanda kusvika ku20 MPa (2,900 psi), kureba kwemapaipi kunodarika 1,000 km

● Mapaipi makuru ekufamba munyika dzakasiyana-siyana– OD 1,016-1,422mm, inotakura huwandu hwakawanda hwegasi rechisikigo

● Mapaipi emafuta anotumirwa kunze kwenyika mumvura yakadzika- Kudzika kwemvura kusvika 3,000m, kunoda kuramba kudonha kwakanyanya uye kukwirira kwakasimba kweoval

●Kutapurirana kwegesi inonyungudutsa- Minda ine H₂S (PSL2 ine HIC/SSC, PWHT, CEV yakaderera)

● Mapaipi eCO₂ ane simba guru reCCS- Mapurojekiti ekutora nekuchengetedza kabhoni anoda simba rakawanda uye kusimba kwekupisa kwakaderera

● Mapaipi egasi eArctic– Nzvimbo dzinogara dzichitonhora dzinoda kukanganiswa kweCharpy pa -60°C uye kudzorwa kweDWTT

● Mapurojekiti ekuwedzera mapaipi- Dhizaini yakavakirwa pamhando ye "strain" yenzvimbo dzinopisa kudengenyeka kwenyika kana nzvimbo dzine chando chakawanda

● Mapaipi emakomo– Kukwanisa kukuru kwekushandisa tambo refu (X70 ine chiyero chakatarwa chegoho)

9. Kurongedza & Kutumira - API 5L X70 LSAW Steel Pipe

Zvichienderana nekukosha kukuru kwemapaipi eX70 (kazhinji mutengo weX52 unodarika kaviri kana katatu), Womic inoshandisa kurongedza kwakawedzerwa:

● Mapaipi ega ega (hapana kusungirirwa, kudzivirira kukuvara kwependi)

● Dunnage yemapuranga ine rabha pakutsigira kwega kwega (zvitsigiro zvidiki 4 papombi imwe neimwe ye12m)

● Zvivharo zvesimbi zvine magasket erabha nemabhegi eVCI mukati

● Yemapaipi akaputirwa: furo rakaputirwa + pepa repurasitiki + bhokisi remapuranga rekuwedzera rekutakura zvinhu mugungwa

● Mapaipi ese akanyorwa nematagi eRFID kuti anyatso teverwa

● Kutumira nemidziyo yekutakura zvinhu ine mapurani ekuisa pombi dzakagadzirirwa

● Magwaro anosanganisira EN 10204 Type 3.2 certificates yekupisa kwega kwega

10. Mabhenefiti eSimbi yeWomic & Mibvunzo Inowanzo bvunzwa - API 5L X70 LSAW Steel Pipe

Sei Womic Steel yeX70 LSAW?

● Maitiro eUOE anopa ±0.15% OD roundness - zvakakosha kuti X70 isanyanya kudonha

● Mapuratifomu eTMCP epamusoro ane CEV ≤ 0.40% (kazhinji 0.35-0.38%) kuti akwanise kusundirwa zvakanaka

● Kupisa kwakaderera kusvika -60°C (CTOD iripo)

● Yakanyoreswa sevhisi yesour service (HIC, SSC) ine PWHT furnace inokwanisa kureba mamita gumi nemaviri

● API 5L Monogram + DNV mvumo yekunze kwenyika

● Mapaipi eX70 anopfuura makiromita 800 akapihwa asina kutadza kushanda zvachose

● Kunyatsoteererwa neRFID tracking

Mibvunzo Inowanzo bvunzwa:

Mubvunzo: Sei kusarudza X70 pane X65 yepombi yegesi inofamba kure?
A: X70 inopa simba rekuwedzera goho ne8% (485 vs 450 MPa), zvichibvumira kudzikiswa kweukobvu hwemadziro ne10-12% yekumanikidzwa kwakafanana. Paipi yemakiromita chiuru, izvi zvinogona kuchengetedza matani 50,000-80,000 esimbi, zvichideredza zvakanyanya mutengo wezvinhu uye carbon footprint. Zvisinei, X70 inoda ma TMCP plates anodhura, kudzora kwakasimba kwewelding, uye mitengo yakakwira yekutarisa. Nzvimbo yekuputsa inowanzoita 500-800 km. Paipi pfupi, X65 inodhura zvishoma.

Mubvunzo: X70 yakaoma here kusonerera mumunda kupfuura X65?
A: Hongu. X70 ine kabhoni yakaenzana neyakakwira (CEV 0.38-0.43% vs X65 0.35-0.40%) uye inonyanya kubatwa nehaidrojeni inopwanyika. Kupinza simbi mumunda kunoda kupisa (kazhinji 100-150°C yeX70 vs 75-100°C yeX65) uye kudzora kupisa kwemukati nekupisa kwepakati. Zvisinei, nemaitiro ekupinza simbi ane hunyanzvi (WPS) uye vanopinza simbi vane hunyanzvi, X70 inogona kusungirirwa zvakavimbika. Womic inopa mazano ekushandisa pakupinza simbi uye inogona kupa makuponi ekufananidza.

Mubvunzo: X70 inogona kushandiswa here pakugadzira sour service (H₂S)?
A: Hongu, asi zvinoda mamwe matanho: CEV ≤ 0.38% (zviri nani ≤ 0.36%), PWHT yehukobvu hwemadziro ese, kuomarara ≤ 85 HRB, HIC uye kuyedzwa kweSSC. Womic yakapa sour service X70 kumapurojekiti ane kusvika 50 ppm H₂S. Cherechedza kuti X70 inonyanya kubatwa neH₂S kupfuura X65 kana X60, saka vazhinji vanoshanda vachiri kuda X65 yenzvimbo dzine H₂S yakakwira.

Mubvunzo: Upfumi hwakanyanya hwepamadziro epaipi yeX70 LSAW hwakaita sei?
A: JCOE/UOE ine musono wepamusoro we50.8mm, plate yakamonerwa ine musono mumwe chete unosvika 70mm. Kana madziro akobvu kupfuura 40mm, maturusi eUOE anova mashoma, uye plate yakamonerwa ndiyo inofarirwa. Munguva pfupi yapfuura takapa X70 914mm OD × 60mm WT yepombi yeCO₂ ine simba rakawanda (CCS project).

Mubvunzo: Ndedzipi bvunzo dzekuoma kwemakumbo dzinodiwa paX70?
A: API 5L inoda kuyedzwa kweCharpy V-Notch (27J min) asi mapurojekiti mazhinji anotaura kukosha kwakakwirira (semuenzaniso, 100J pa -20°C). DWTT inodiwa kuti pave nekudzora kupararira kwetsandanyama (nzvimbo yekuchekerera ≥ 85% patembiricha yekuyedza). Kune mapaipi ekunze kana eArctic, kuyedzwa kweCTOD (≥ 0.25mm pa -20°C kana -46°C) kunowanzowedzerwa. Womic inoita bvunzo idzi dzese mumba kana kuburikidza nemarabhoritari echitatu anogamuchirwa.

Q: Ndeipi nguva yakajairika yekuendesa pombi yeX70 LSAW?
A: X70 inoda maplate eTMCP ane nguva refu yekutungamira (mavhiki 8-12 kubva pakugaya). Nguva yese yekutungamira: mazuva 70-100 kubva pakutenga kusvika pakutumira FOB. Maoda ekukurumidzira (mazuva 45-60) anogoneka kana maplate aripo.

Mubvunzo: Ko X70 inoda PWHT here kuti ishandiswe zvisina kunaka?
A: API 5L haibvumiri PWHT yeX70 iri pasi pe50.8mm WT. Zvisinei, vazhinji vanoshandisa PWHT yemapaipi eX70 pasinei nekukora kwemadziro kuti vaderedze kushushikana kwakasara uye vaone kuti HAZ yakasimba. Womic inogona kupa PWHT kana yakumbirwa (mutengo wekuwedzera uye nguva yekutungamira).

Chirevo chePurojekiti - Mutsetse weGasi Rechisikigo weCentral Asia Unobva Kure

Nyika:Muganhu weUzbekistan - Tajikistan - China (chikamu cheCentral Asia-China Gas Pipeline)
Standard & Giredhi:API 5L X70 PSL2 (isina kuoma, asi ine zvinodiwa pakupisa kwakaderera)
Zviyero & Huwandu:

● OD 1,219mm (48″) × Huremu 19.0mm – 85,000 metres (anenge matani 48,500) yakagadzirwa neUOE process

● OD 1,219mm (48″) × Huremu 22.2mm – 15,000 metres (anenge matani 9,500) yakagadzirwa neUOE process (rusvingo rwakakora rwekuyambuka makomo nenzvimbo dzemafault)

● OD 1,016mm (40″) × Huremu 17.5mm – 40,000 metres (anenge matani 17,800) yakagadzirwa neJCOE process (mutsetse webazi)
Huwandu:Mamita 140,000 (140 km), matani angangoita 75,800

Magadzirirwo:Kuvhara kwekunze kwe3LPE (3.0mm yese), magumo akachekwa 30°/1.6mm, hydrotest pa19.5 MPa (dhizaini yekumanikidza 15.0 MPa). Kurovera kweCharpy kunodiwa pa -20°C (min 80J, yakasvika 150-220J) uye pa -46°C (min 50J, yakasvika 100-160J). DWTT pa -20°C: nzvimbo yekuchekwa ≥ 85% yemuviri wepombi, ≥ 70% yeweld. Full-body UT (100% yehuwandu hwepombi, kwete musono chete). Kuongororwa kwechitatu neTÜV Rheinland panguva yekugadzira. DNV yakaona kuyedzwa kwehydrostatic pa10% yekugadzira.

Kushandiswa:Kuwedzerwa kweCentral Asia-China Gas Pipeline (Mutsetse D), kutakura gasi rechisikigo kubva kuminda yegasi muUzbekistan kuburikidza neTajikistan kuenda kumuganhu weChina. Kureba kwemutsetse uyu: 140 km. Pombi iyi inopfuura nepamakomo ePamir, kusanganisira nzvimbo ina dzinoshanda dzekudengenyeka kwenyika, nzvimbo nhatu huru dzekuyambuka nzizi, uye kuchinja kwekukwirira kubva pa400m kusvika 2,800m.

Matambudziko ehunyanzvi nemhinduro:

● Kukwira zvakanyanya uye kuchinja kwekupisa– Kukwirira kwepaipi kunotangira pa400m kusvika 2,800m, nekupisa kwepakati kubva pa -35°C munguva yechando kusvika +45°C muzhizha. Mapaipi e48" X70 aida kusimba kwekupisa kushoma kusvika pa -46°C (Charpy min 50J). Womic yakasarudza ma TMCP plates ane nickel addition (Ni ≤ 0.50%) kuti Charpy impact isvike pa -46°C avhareji ye 120J. DWTT pa -20°C shear area: 92-96% yepombi body, 82-88% ye weld. Miedzo yese yakapasa.

● Kuyambuka zvikanganiso zvekudengenyeka kwenyika - dhizaini yakavakirwa pakumanikidzwa– Zvikamu zvina zvemapaipi zvinosangana nemakakatanwa anoshanda pamwe nekubviswa kwevhu kusvika 1.5m. Paipi yakagadzirwa uchishandisa dhizaini yakavakirwa pakusvuta (kwete pakusvuta). Izvi zvinoda mapaipi eX70 ane chiyero chakatsanangurwa chekukura ≤ 0.85 (API 5L PSL2 inobvumira 0.93) uye kureba kwakafanana ≥ 15%. Womic yakagadzira X70 yakakosha "yekusvuta kwakanyanya" ine chiyero chekukura 0.80-0.84 uye kureba kwakafanana 16-18%. Takapawo bvunzo yekudhonza yakazara (kwete kungosvuta chete) kuti tione kugona kwekusvuta.

● Nzvimbo ine makomo ine zvinodiwa zvakanyanya zvekukotama– Pombi iyi ine makiromita makumi maviri nemaviri emapaipi ane 48" akaiswa pamawere ane 20-30 degrees. Kukombama kwepombi dzeX70 kunotonhora kwakaganhurirwa (API 5L inobvumira 1.5° pa 12m). Mapaipi eWomic ane majoini akareba 18m ezvikamu zvakatwasuka uye majoini e12m ezvikamu zvakakotama. Takaitawo bvunzo yekukombama pasampuli dzakakwana: mapaipi e48" × 19.0mm akakombama achitonhora kusvika 2.0° pa 12m asina kutsemuka (zvakasimbiswa neUT neMT mushure mekukombama).

● Makwambuko erwizi anoda madziro akakora– Mapombi matatu ekuyambuka rwizi (Oxus rivbutaries) aida 22.2mm WT pachinzvimbo che19.0mm kuti awedzere kudonha nekukombama panguva yekuisa pullback. Womic yakashandisa nzira yeUOE yemapombi aya kuti asvike pakukwirira ≤ 0.2% (chaiyo 0.12-0.18%), zvichiita kuti pave nekufamba kwakatsetseka nepaburi. Mapombi emadziro akakora aidawo kudzikisa kupisa panguva yekubatanidza (≤ 2.0 kJ/mm) kuti HAZ irambe yakasimba.

● Kufamba kure kwenyika nhatu– Mapaipi akagadzirwa muWomic's Tianjin plant, akatumirwa nechitima kuenda kuAlmaty (Kazakhstan), ndokuzoendeswa kumarori kuti aendeswe kunzvimbo dzekuvaka muUzbekistan neTajikistan. Nhanho yese yekufambisa: anopfuura 5,000 km. Womic yakashandisa mota dzechitima dzakagadzirwa nehunyanzvi dzine zvitsigiro zvine machira uye simbi dzakasungirirwa. Pombi yega yega yakaskenwa neRFID panzvimbo yega yega yekufambisa. Hapana mapombi akakuvara panguva yekufambisa pasinei nekuyambuka miganhu mitatu uye 6 transshipments.

● Zvinodiwa zvakanyanya zvekupfeka kuti munhu awane UV yakakwirira munzvimbo dzakakwirira– Pakukwirira kwe2,800m, mwaranzi yeUV yakakwira ne40% kupfuura padanho regungwa. Standard 3LPE inogona kuora kana UV yakakwira. Womic yakaisa 3LPE ine UV-stabilized top layer yakawedzerwa (carbon black content 2.5% vs standard 2.0%). Coating yakapasa accelerated UV weathering test (1,000 hours QUV, gloss retention ≥ 80%). Simba reganda rakaramba riri > 200 N/cm mushure mekusvikwa neUV.

● Mhedzisiro:Kuwedzerwa kwepombi ye140 km kwakapedzwa uye kwakatangwa mukota yechipiri ya2025. Matani ese 75,800 emapaipi eX70 PSL2 akapfuura kuongororwa kweTÜV pasina kurambwa zvachose. Zvikamu zvekugadzira zvine simba zvakapona zviitiko zviviri zvekudengenyeka kwenyika (hukuru 4.2 na5.1) mukati memwedzi gumi nemisere yekutanga yekushanda pasina zviratidzo zvekudonha kana kubuda kwemvura. Mutengi (kambani yegesi yenyika yeUzbekistan) akapa rumbidzo kuWomic Steel nekuda kwe "kudzora kunaka kwemhando yepamusoro uye rutsigiro rwehunyanzvi." Womic ikozvino ndiyo mutengesi anodiwa wezvikamu zveLine D zvemangwana.

Bata nesu:
Webhusaiti: www.womicsteel.com
E-mail: sales@womicsteel.com

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

Womic Steel – Mubatsiri wako wakavimbika wemapaipi eAPI 5L X70 LSAW ekushandisa tambo dzemagasi dzinofamba kure dzine simba rakawanda, mapaipi emunyika, mashandisirwo eArctic, uye nzvimbo dzine simba rekudengenyeka kwenyika pasi rese.

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