1. I-Womic Steel: Amandla okuvelisa kunye namandla enkampani
I-Womic Steel Group isebenzisa imigca emininzi yemveliso ye-LSAW enezakhono eziphambili zokuvelisa i-X70 enamandla aphezulu. I-X70 ifuna iipleyiti ezicutshungulwayo ezilawulwa ngobushushu (TMCP), ukupholisa okukhawulezileyo, kunye nolawulo lokufaka ubushushu oluqinileyo kakhulu.
●Umgca we-JCOE:Kwiidayamitha ezingama-406mm – 1,422mm (16″–56″), ubukhulu bodonga bufikelela kwi-50.8mm. I-JCO isenziwa ngokukhula koomatshini. Ukufakwa kobushushu ngexesha lokuwelda kwe-SAW kulinganiselwe kwi-≤ 2.5 kJ/mm.
● Umgca we-UOE:Kwiidayamitha ezingama-508mm – 1,220mm (20″–48″), ubukhulu bodonga bufikelela kwi-40mm. Ukwakheka kwe-U emva koko ukwakheka kwe-O kunye nokwandiswa kwe-hydraulic. Ukujikeleza okuphezulu (± 0.15% OD). Kukhethwa kwi-X70 ngenxa yeempawu zoomatshini ezihlala zihleli.
● Ipleyiti Eqengqelekayo (Umthungo Omnye):Kwiidayamitha ezingama-600mm – 1,600mm (24″–63″), ubukhulu bodonga buqala kwi-25mm ukuya kwi-70mm. Ipleyiti enye iqengqelwe kwisilinda. Isetyenziselwa ukusetyenziswa kodonga olunzima lwe-X70.
● Ipleyiti Eqengqelekayo (I-Double Seam):Ubukhulu bodonga > 50.8mm ukuya kuthi ga kwi-80mm. Isetyenziselwa imibhobho ye-CO₂ enoxinzelelo oluphezulu kakhulu.
Umthamo we-LSAW uwonke udlula iitoni ezingama-300,000 ngonyaka, kunye nemveliso ye-X70 ezinikeleyo edlula iitoni ezingama-50,000 ngonyaka. I-Womic Steel ine-API 5L Monogram (eqinisekiswe yi-X70 PSL2), i-ISO 9001, i-CE PED, imvume ye-DNV GL, kwaye ihlolwa rhoqo ziinkampani ezinkulu zeoyile. Irekhodi lomhlaba wonke ngemibhobho ye-X70 engaphezulu kwe-800 km ebonelelweyo.
Ukuguquguquka kwemveliso ye-X70:
● I-JCOE: 406–1,422mm OD × 6.0–50.8mm Ubunzima × ≤ 18m
● I-UOE: 508–1,220mm OD × 6.0–40.0mm Ubunzima × ≤ 24m (ubungqindilili ± 0.15%)
● Ipleyiti eqengqekileyo (umthungo omnye): 600–1,600mm OD × 25–70mm Ubunzima × ≤ 12m
● Ipleyiti eqengqelekayo (umthungo ophindwe kabini): 1,000–2,000mm OD × 25–80mm Ubunzima × ≤ 12m
Zonke iipayipi ze-X70 zibonelelwa nge-100% ye-UT ezenzekelayo ene-TOFD, uvavanyo lwe-Charpy impact kumaqondo obushushu athile, kunye ne-DWTT yokulawula ukwanda kwe-fracture. I-PWHT isetyenziswa xa kufuneka kwinkonzo ye-sour.
2. I-API 5L X70: Iimpawu zoBume beZinto kunye nokuSebenza
I-API 5L X70 (L485) yipayipi yomgca enamandla aphezulu eyenzelwe ukuhanjiswa kwegesi enoxinzelelo oluphezulu kumgama omde. Amandla amancinci okuvelisa yi-485 MPa (70,300 psi) kunye namandla okutsalwa yi-570 MPa (82,700 psi). I-X70 iveliswa kusetyenziswa i-TMCP ephucukileyo enokupholisa okukhawulezileyo ukuvelisa i-acicular ferrite okanye i-bainitic microstructure. I-PSL2 iyimfuneko kwi-X70; i-PSL1 phantse ayisetyenziswa.
Ulwakhiwo lweeKhemikhali (Uhlalutyo lweeLadle, ubuninzi be-% ngobunzima - i-PSL2):
| I-elementi | I-API 5L X70 PSL2 (ubuninzi %) | Inkonzo emuncu (injongo eqhelekileyo) |
| 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 | Ayichazwanga ngqo | ≤ 0.35 (kwi-muncu) |
| Ni | Ayichazwanga ngqo | ≤ 0.50 (kwiqondo lobushushu eliphantsi) |
| Cu | Ayichazwanga ngqo | ≤ 0.30 |
| Cr | Ayichazwanga ngqo | ≤ 0.30 |
| I-CEV | ≤ 0.43 (eqhelekileyo ≤ 0.41) | ≤ 0.40 (eqhelekileyo ≤ 0.38) |
| I-Pcm | ≤ 0.25 | ≤ 0.22 |
Kwinkonzo yesour, iWomic isebenzisa i-low-carbon (C ≤ 0.06%), i-ultra-low sulfur (S ≤ 0.0015%), iipleyiti eziphathwe nge-calcium ezine-CEV ≤ 0.38%.
Iipropati zoomatshini (Ubushushu begumbi - PSL2):
| Ipropati | I-API 5L X70 PSL2 |
| Amandla Okuvelisa (umzuzu) | I-485 MPa (70,300 psi) |
| Amandla okuvelisa (ubuninzi) | I-605 MPa (87,800 psi) |
| Amandla okuThamba (umzuzu) | I-570 MPa (82,700 psi) |
| Amandla okuThamba (ubuninzi) | I-760 MPa (110,200 psi) |
| Umlinganiselo weNzuzo (ubuninzi) | 0.93 |
| Ukwandiswa (umzuzu) | 18% (kwigeyiji engama-50mm) |
| Ubunzima (ubuninzi) | 90 HRB (emuncu: 85 HRB eqhelekileyo) |
| Ukuqina kwempembelelo (umzuzu) | 27 J @ 0°C (ngokuqhelekileyo: 100-200J) |
Thelekisa ne-X65 kunye ne-X80:
| Ibanga | I-MPa yemveliso | I-MPa ethambileyo | Umlinganiselo wesivuno | Isicelo esiqhelekileyo |
| X65 | 450 | 535 | ≤ 0.93 | Uxinzelelo oluphezulu, amanzi anzulu |
| X70 | 485 | 570 | ≤ 0.93 | Uxinzelelo oluphezulu kakhulu, umgama omde |
| X80 | 555 | 625 | ≤ 0.93 | Umgama omde kakhulu, uxinzelelo olukhulu |
3. Ukuthobela uLuhlu lweeDimensional kunye neMigangatho
| Into | Inkcazo |
| Umgangatho | I-API 5L PSL2 (i-X70 inikezelwa kuphela njenge-PSL2 nge-API 5L nganye) |
| Iinkqubo zoMveliso | I-JCOE, i-UOE, ipleyiti eqengqekileyo (umthungo omnye/ophindwe kabini) |
| Uluhlu lweDayamitha yangaphandle | 406mm – 1,600mm (16″ – 63″) |
| Uluhlu Lobukhulu Bodonga | I-JCOE/UOE: 6.0mm – 50.8mm; Ipleyiti eqengqekileyo: 25mm – 70mm (ukuya kuthi ga kwi-80mm ngokwezifiso) |
| Uluhlu lobude | Umgangatho: 12m, 18m; Yandisiwe: ukuya kuthi ga kwi-24m (UOE) |
| Isiphelo Sokugqiba | Isiphelo Esibekiweyo (BE) nge-API nganye yi-5L (i-bevel engama-30°, ubuso obuyi-1.6mm ingcambu) |
| Umphezulu Ukugqiba | I-Bare, 3LPE, 3LPP, FBE (imfuneko yokwaleka kwiipayipi ezininzi ze-X70) |
| Ukunyamezelana | I-OD: ±0.5% okanye ±3.2mm; Ubunzima: -0% / +15%; Ubude: +50mm / -0mm |
| Ukuqanda (UOE) | ≤ 0.2% kwiindawo ezikude nolwandle, ≤ 0.3% kwiindawo ezikude nolwandle |
4. Ubukhulu kunye neenkcukacha ezikhoyo – Ipayipi yentsimbi ye-API 5L X70 LSAW (Ubungakanani obuqhelekileyo obukhethiweyo)
| OD (mm) | Iinketho ze-WT (mm) | Inkqubo | Ubunzima obumalunga (kg/m2) | Ubude obuqhelekileyo | Isicelo esiqhelekileyo |
| 406 | 8.0, 10.0, 12.5, 14.0, 16.0 | JCOE/UOE | 78.5 – 153.9 | 12m / 18m | Icala legesi |
| 508 | 10.0, 12.5, 14.0, 16.0, 19.0, 22.0 | I-UOE | 122.8 – 263.8 | 12m / 18m / 24m | Umgca wesiqu |
| 610 | 12.5, 14.0, 16.0, 19.0, 22.0, 25.4 | I-UOE | 184.2 – 366.2 | 12m / 18m / 24m | Isiqu esiphambili |
| 711 | 14.0, 16.0, 19.0, 22.0, 25.4, 28.0 | I-UOE | 240.7 – 471.7 | 12m / 18m | Nqumla iliawe |
| 813 | 16.0, 19.0, 22.0, 25.4, 30.0, 32.0 | JCOE/UOE | 314.4 – 616.2 | 12m / 18m | Igesi enomthamo ophezulu |
| 914 | 19.0, 22.0, 25.4, 30.0, 35.0, 38.0 | JCOE/UOE | 419.5 – 820.9 | 12m / 18m | Ukuthumela kwamanye amazwe ngaphandle |
| 1,016 | 22.0, 25.4, 30.0, 35.0, 40.0, 45.0 | I-JCOE/Eqengqiweyo | 539.2 – 1,078.2 | 12m | Amanzi anzulu |
| 1,220 | 25.4, 30.0, 35.0, 40.0, 45.0, 50.0 | Iqengqelekile (inye) | 748.4 – 1,450.5 | 12m | Umgama omde |
| 1,422 | 30.0, 35.0, 40.0, 45.0, 50.0, 55.0 | Iqengqelekile (inye) | 1,030 – 1,856 | 12m | Uxinzelelo oluphezulu kakhulu |
Iipayipi ze-X70 phantse zihlala ziyiPSL2 enovavanyo lokuchaphazela iCharpy. Iipayipi ezinzima ze-X70 (≥ 30mm) zifuna i-PWHT ukuze zisebenze kakuhle. Zonke iipayipi ze-X70 zifuna i-100% UT ene-TOFD kunye ne-DWTT ukuze kulawulwe ukwaphuka.
5. Imigangatho Eqhelekileyo kunye namaBanga – Umbhobho woMgca oMandla aphezulu we-LSAW
| Umgangatho | Amanqanaba eNsimbi | Isicelo esiqhelekileyo | Inkqubo Yokwenza |
| I-API 5L PSL2 | X70 (L485), X80 (L555) | Igesi ekude | I-UOE/JCOE |
| I-ISO 3183 | L485, L555 | Iiprojekthi zamazwe ngamazwe | I-UOE |
| I-DNV-OS-F101 | L485, L555 | Imibhobho engaphantsi kolwandle | I-UOE |
| I-CSA Z245.1 | Ibanga 483 (X70) | Iipayipi zaseKhanada | I-UOE |
| I-GOST R 52079 | I-K60 (elingana ne-X70) | Imibhobho yaseRashiya | I-JCOE |
| I-NORSOK M-120 | X70 | Imibhobho yeqonga laselwandle | I-UOE |
Isishwankathelo sokusetyenziswa:Imigca yepetroli enoxinzelelo oluphezulu kakhulu yomgama omde, imibhobho enqumla ilizwe edlula i-1,000 km, ukuthunyelwa kwegesi emanzini anzulu, inkonzo emuncu, imibhobho ye-arctic, imibhobho ye-CO₂.
6. Iinkqubo zoMveliso – LSAW (UOE / JCOE / Rolled Plate) yeX70 Steel Pipe
I-X70 ifuna iipleyiti ze-TMCP ezinokupholisa ngokukhawuleza, ubushushu obuphantsi kakhulu ngexesha lokuwelda kwe-SAW (≤ 2.2 kJ/mm), kunye nolawulo oluqinileyo lobushushu phakathi kwe-interpass (≤ 150°C). I-UOE ikhethwa ngaphezu kwe-JCOE kwi-X70 ngenxa yolawulo olungcono lobukhulu.
Inkqubo ye-UOE (508–1,220mm OD, 6.0–40mm WT) – Icetyiswa kwi-X70:
● Ukugaya umphetho wepleyiti (i-J-bevel, ukuchaneka kwe-± 0.3mm)
● U-press (amandla e-4000t)
● I-O-press (amandla e-6000t)
● Ukwandiswa koomatshini (amacandelo angama-72, ukunyuka kwe-OD eyi-1.0-1.2%)
● I-SAW yangaphakathi: igalelo lobushushu ≤ 2.2 kJ/mm, i-interpass ≤ 150°C
● Ukusika umqolo (ngoomatshini, kungekhona ngobushushu)
● I-SAW yangaphandle: i-multi-pass, i-heat input ≤ 2.2 kJ/mm, i-cooling rate ijongiwe
● Uvavanyo lokugqibela lobukhulu: i-ovality ≤ 0.15-0.20%
Inkqubo ye-JCOE (406–1,422mm OD, 6.0–50.8mm WIT):
● Ukwakheka ngokulandelelana ngetoni ephantsi
● Ifanelekile kwi-X70 eselunxwemeni apho i-ovality ≤ 0.3% yamkelekile
● Izilawuli zokuwelda ezifanayo nezo ze-UOE
Ipleyiti Eqengqelekayo (I-Single Seam) yoDonga Olunzima X70 (600–1,600mm OD, 25–70mm WIT):
● Ukugoba okune-roll ezine kunye nokulinganisa ukujikeleza kwenkqubo
● I-SAW edlula ngeendlela ezininzi (ubuncinane iipasi ezi-4 ze-40mm WT)
● I-PWHT iyimfuneko kubukhulu bodonga ≥ 25mm kwinkonzo emuncu
● Isetyenziselwa i-CO₂ enoxinzelelo oluphezulu kunye nokufakwa kwamanzi
Unyango Lobushushu Emva Kokushintshwa Kwesinyithi (PWHT):Kwinkonzo ye-X70 sour, i-PWHT isetyenziswa kuzo zonke iindonga ezinobukhulu obuyi-≥ 20mm (umthengi uhlala echaza zonke iindonga ezinobukhulu obuyi-570-590°C). Ubushushu bokuntywila yi-570-590°C (bungaphantsi kune-X65 ukuze kuthintelwe ukuxinana). Ixesha lokubamba yiyure e-1 kwi-25mm nganye. Izinga lokuphola yi-≤ 100°C ngeyure. Ubunzima emva kwe-PWHT: ≤ 85 HRB.
Uvavanyo loLawulo lokuQhawuka kweMpazamo kwi-X70:
● I-Charpy V-Notch kwi -20°C, -46°C, okanye -60°C (ngokuqhelekileyo: 100-200J)
● I-DWTT (Uvavanyo lokukrazula ngobunzima bokulahla) kwi -20°C okanye ubushushu bovavanyo: indawo yokucheba ≥ 85% yomzimba wombhobho, ≥ 70% kwi-weld
● I-CTOD (Indawo Yokufuduka Kwi-Crack Tip Opening) yee-risers ezisuka elwandle (≥ 0.25mm kwi -20°C)
7. Iinkqubo zoLawulo loMgangatho kunye noVavanyo lwePipe yeNsimbi ye-API 5L X70 LSAW
| Iqonga | Indlela yokuhlola | Injongo |
| Ipleyiti | Uhlalutyo lweeKhemikhali (OES) | Qinisekisa imida ye-X70 (i-C ephantsi, i-CEV ≤ 0.43) |
| Ipleyiti | I-Ultrasonic (ukuhlolwa kwe-lamination eyi-100%) | Fumana ii-laminations |
| Ipleyiti | Ukutsalwa (L+T) + CVN kwi -20°C | Iimpawu zoomatshini, ukuqina |
| Ipleyiti | Ubungakanani beenkozo (ASTM E112) | Iinkozo ezicolekileyo (ASTM 11 okanye ezicolekileyo) |
| Ngexesha lokwakheka | Ukubeka iliso rhoqo ngobukhulu | I-OD, i-ovality, ulungelelwaniso lomphetho |
| Umthungo wokuwelda | I-UT ezenzekelayo eyi-100% ene-TOFD | Fumanisa zonke iziphene ze-weld |
| Umthungo wokuwelda | RT (10-100% njengoko kuchaziwe) | Ukuqinisekiswa komgangatho we-Weld |
| Umthungo wokuwelda | I-MPI (iinzwane/i-HAZ) | Imingxunya yomphezulu |
| Umthungo wokuwelda | Indlela yokuqina (BM, HAZ, WM) | Inkonzo emuncu (≤ 85 HRB) |
| Umbhobho ogqityiweyo | Uvavanyo lwe-Hydrostatic (90-100% SMYS) | Ukunyaniseka koxinzelelo |
| Umbhobho ogqityiweyo | I-Charpy V-Notch kubushushu obuchaziweyo (ubuncinane 27J) | Ukuqina kobushushu obuphantsi |
| Umbhobho ogqityiweyo | I-DWTT kubushushu obuchaziweyo (≥ 85% SA) | Ukwanda kwamathambo aqhekekileyo |
| Umbhobho ogqityiweyo | Ukugoba okukhokelwayo / ukuThatyathwa | Ubuchule |
| Umbhobho ogqityiweyo | I-CTOD (yaselwandle) | Ukuqina kokwaphuka |
| Umbhobho ogqityiweyo | Imbonakalo kunye nophawu olunenombolo yobushushu | Ukulandeleka |
Okuyimfuneko kwi-X70 PSL2:
● I-100% UT yomthungo we-weld (ayinakuba yindawo ecacileyo)
● Uvavanyo lwe-hydrostatic
● Impembelelo yeCharpy (ubuncinane iiseti ezi-3)
● Kwinkonzo emuncu: HIC, SSC, PWHT, ubulukhuni ≤ 85 HRB
Kwamanye amazwe: Uvavanyo lwe-CTOD, i-ovality ≤ 0.2%
8. Izicelo eziphambili – Ipayipi yentsimbi ye-API 5L X70 LSAW
●Imigca yemithwalo yegesi yoxinzelelo oluphezulu kakhulu yomgama omde– Uxinzelelo olusebenzayo ukuya kuthi ga kwi-20 MPa (2,900 psi), ubude bepayipi budlula i-1,000 km
● Iipayipi ezinkulu ezinqumla ilizwe– OD 1,016-1,422mm, ithutha igesi yendalo eninzi
● Imibhobho yokuthumela igesi kwamanye amazwe emanzini anzulu– Ubunzulu bamanzi ukuya kuthi ga kwi-3,000m, obufuna ukumelana nokuwa okuphezulu kunye ne-oval eqinileyo
●Ukuhanjiswa kwegesi yenkonzo emuncu– Amasimi aqulethe i-H₂S (i-PSL2 ene-HIC/SSC, i-PWHT, i-CEV ephantsi)
● Iipayipi ze-CO₂ ezinoxinzelelo oluphezulu ze-CCS- Iiprojekthi zokubamba nokugcina ikhabhoni ezifuna amandla aphezulu kunye nokuqina okuphantsi kobushushu
● Imibhobho yegesi yeArctic– Iindawo ezihlala ziqhwa zifuna impembelelo yeCharpy kwi -60°C kunye nolawulo lwe-DWTT
● Iiprojekthi zokwandiswa kwemibhobho– Uyilo olusekelwe kwiingxaki zeendawo ezineenyikima okanye kwiindawo ezineqhwa
● Iipayipu zomhlaba ezikwiintaba– Umthamo ophezulu woxinzelelo olude (X70 kunye nomlinganiselo othile wesivuno)
9. Ukupakishwa kunye nokuthunyelwa – Ipayipi yentsimbi ye-API 5L X70 LSAW
Ngenxa yexabiso eliphezulu leepayipi ze-X70 (ngesiqhelo ixabiso eliphindwe kabini ukuya kwelesithathu le-X52), i-Womic isebenzisa ukupakisha okuphuculweyo:
● Imibhobho nganye (akukho kubopha, ukuze kuthintelwe umonakalo wokwaleka)
● I-dunnage yomthi enzima ene-rubber padding kwinkxaso nganye (ubuncinane izixhaso ezi-4 kwipayipi nganye ye-12m)
● Iikhaphu zentsimbi ezinee-gasket zerabha kunye neengxowa ze-VCI ngaphakathi
● Kwimibhobho egqunyiweyo: isigqubuthelo sefoam + iplastiki + ikreyiti yomthi eyongezelelweyo yokuthutha imithwalo elwandle
● Zonke iipayipi ziphawulwe ngeethegi zeRFID ukuze zilandeleke ngokupheleleyo
● Ukuthunyelwa ngeenqanawa eziqhekezayo ezinezicwangciso zokubeka iipayipi ezizinikeleyo
● Amaxwebhu aquka izatifikethi ze-EN 10204 Uhlobo lwe-3.2 zobushushu ngabunye
10. Iingenelo zeWomic Steel kunye neFAQ – API 5L X70 LSAW Steel Pipe
Kutheni iWomic Steel isetyenziswa kwi-X70 LSAW?
● Inkqubo ye-UOE inika ubungqindilili be-OD obuyi-±0.15% – ibaluleke kakhulu ekuchaseni okuphezulu kwe-X70
● Iipleyiti zeTMCP eziphambili ezine-CEV ≤ 0.40% (eqhelekileyo yi-0.35-0.38%) ukuze kube lula ukuwelda
● Ubushushu obuphantsi bufikelela kwi -60°C (i-CTOD iyafumaneka)
● Inkonzo eyomileyo eqinisekisiweyo (HIC, SSC) ene-PWHT furnace enobude obuziimitha ezili-12
● Imvume ye-API 5L Monogram + DNV yokufikelela elunxwemeni
● Iipayipi ze-X70 ezingaphezu kwe-800 km zibonelelwe ngaphandle kokusilela emsebenzini
● Ukulandeleka ngokupheleleyo ngokulandelela i-RFID
Imibuzo ebuzwa qho:
Q: Kutheni ukhethe i-X70 kune-X65 kumbhobho wegesi ohamba umgama omde?
A: I-X70 inika amandla aphezulu esivuno nge-8% (485 vs 450 MPa), okuvumela ukunciphisa ubukhulu bodonga malunga ne-10-12% kuxinzelelo olufanayo. Kwipayipi ye-1,000 km, oku kunokonga iitoni zentsimbi ezingama-50,000-80,000, okunciphisa kakhulu iindleko zezinto kunye nomgangatho wekhabhoni. Nangona kunjalo, i-X70 ifuna iipleyiti ze-TMCP ezibizayo, ulawulo oluqinileyo lokuwelda, kunye neendleko eziphezulu zokuhlola. Indawo yokuqhekeza idla ngokuba malunga ne-500-800 km. Kwipayipi emfutshane, i-X65 iyonga kakhulu.
Q: Ingaba i-X70 kunzima ukuyishibiliza ebaleni kune-X65?
A: Ewe. I-X70 inexabiso eliphezulu lekhabhoni (i-CEV 0.38-0.43% xa ithelekiswa ne-X65 0.35-0.40%) kwaye ibuthathaka ngakumbi ekuqhekekeni kwe-hydrogen. Ukuwelda kwentsimi kufuna ukufudunyezwa kwangaphambili (ngesiqhelo yi-100-150°C kwi-X70 xa ithelekiswa ne-75-100°C kwi-X65) kunye nolawulo oluqinileyo lokufaka ubushushu kunye nobushushu obuphakathi. Nangona kunjalo, ngeenkqubo zokuwelda ezifanelekileyo (i-WPS) kunye nabawelda abanobuchule, i-X70 inokuwelda ngokuthembekileyo. I-Womic inikezela ngeengcebiso ezisetyenziswayo zokuwelda kwaye inokubonelela ngeekhuphoni zokufaneleka.
Q: Ngaba i-X70 ingasetyenziselwa inkonzo emuncu (H₂S)?
A: Ewe, kodwa ifuna amanyathelo ongezelelweyo: I-CEV ≤ 0.38% (kungcono ≤ 0.36%), i-PWHT kuzo zonke iindonga ezinkulu, ubulukhuni ≤ 85 HRB, uvavanyo lwe-HIC kunye ne-SSC. I-Womic inikezele ngenkonzo ye-sour X70 kwiiprojekthi ezine-50 ppm H₂S. Qaphela ukuba i-X70 inovelwano ngakumbi kwi-H₂S kune-X65 okanye i-X60, ngoko ke uninzi lwabaqhubi basakhetha i-X65 kwiindawo ezine-H₂S ephezulu.
Q: Bungakanani ubukhulu bodonga obuphezulu kwipayipi ye-X70 LSAW?
A: I-JCOE/UOE max 50.8mm, ipleyiti egoqiweyo enye ifikelela kwi-70mm. Ukuze udonga lube nobukhulu obungaphezulu kwe-40mm, izixhobo ze-UOE ziyancitshiswa, kwaye ipleyiti egoqiweyo iyathandwa. Kutshanje sinikezele nge-X70 914mm OD × 60mm WT yombhobho we-CO₂ oxinzelelo oluphezulu (iprojekthi ye-CCS).
Q: Luluphi uvavanyo lokuqina kokuqhekeka olufunekayo kwi-X70?
A: I-API 5L ifuna uvavanyo lweCharpy V-Notch (27J min) kodwa uninzi lweeprojekthi luchaza amaxabiso aphezulu (umz., 100J kwi -20°C). I-DWTT iyafuneka kulawulo lokusasazeka kwee-fracture (indawo yokucheba ≥ 85% kubushushu bovavanyo). Kwimibhobho eselunxwemeni okanye ese-arctic, uvavanyo lwe-CTOD (≥ 0.25mm kwi -20°C okanye -46°C) luhlala longezwa. I-Womic yenza zonke ezi mvavanyo ngaphakathi okanye ngeelabhoratri ezivunyiweyo zomntu wesithathu.
Q: Lingakanani ixesha eliqhelekileyo lokuqalisa umbhobho we-X70 LSAW?
A: I-X70 ifuna iipleyiti ze-TMCP ezinexesha elide lokutsala (iiveki ezi-8-12 ukusuka kwindawo yokusila). Ixesha elipheleleyo lokutsala: Iintsuku ezingama-70-100 ukusuka kwiodolo ukuya ekuthunyelweni kwe-FOB. Iiodolo ezingxamisekileyo (iintsuku ezingama-45-60) zinokwenzeka ukuba iipleyiti zikho esitokhweni.
Q: Ngaba i-X70 ifuna i-PWHT kwinkonzo engenamsebenzi?
A: I-API 5L ayigunyazisi i-PWHT kwi-X70 engaphantsi kwe-50.8mm WT. Nangona kunjalo, uninzi lwabaqhubi lusebenzisa i-PWHT kwimibhobho ye-X70 nokuba ubukhulu bodonga bunjani ukunciphisa uxinzelelo olushiyekileyo nokuqinisekisa ukuqina kwe-HAZ. I-Womic inokubonelela nge-PWHT xa iceliwe (indleko ezongezelelweyo kunye nexesha lokuqalisa).
Isalathiso seProjekthi – Umgca weSithungo seGesi yendalo esikuMbindi weAsia
Ilizwe:Umda wase-Uzbekistan – eTajikistan – eTshayina (inxalenye yeMbhobho weGesi e-Asia eseMbindini)
Imigangatho kunye neBanga:I-API 5L X70 PSL2 (ayimuncu, kodwa ineemfuno zobushushu obuphantsi)
Ubukhulu kunye nobungakanani:
● OD 1,219mm (48″) × Ubunzima 19.0mm – 85,000 metres (malunga neetoni ezingama-48,500) ezenziwe ngenkqubo ye-UOE
● OD 1,219mm (48″) × Ubunzima 22.2mm – 15,000 yeemitha (malunga neetoni ezingama-9,500) ezenziwe ngenkqubo ye-UOE (udonga olujiyileyo lokuwela iintaba kunye neendawo ezineziphene)
● OD 1,016mm (40″) × Ubunzima 17.5mm – 40,000 yeemitha (malunga neetoni ezili-17,800) ezenziwe yinkqubo ye-JCOE (umgca wesebe)
Isimbuku:Iimitha ezili-140,000 (iikhilomitha ezili-140), malunga neetoni ezingama-75,800
Iinkcukacha:Ingubo yangaphandle ye-3LPE (i-3.0mm iyonke), iziphelo ezibengezelayo ziyi-30°/1.6mm, uvavanyo lwe-hydro kwi-19.5 MPa (uxinzelelo loyilo yi-15.0 MPa). Impembelelo yeCharpy enyanzelekileyo kwi--20°C (ubuncinci be-80J, ifikelelwe kwi-150-220J) nakwi--46°C (ubuncinci be-50J, ifikelelwe kwi-100-160J). I-DWTT kwi--20°C: indawo yokucheba ≥ 85% yomzimba wepayipi, ≥ 70% kwi-weld. I-UT yomzimba opheleleyo (i-100% yomthamo wepayipi, hayi nje umthungo). Ukuhlolwa komntu wesithathu yi-TÜV Rheinland kuyo yonke imveliso. I-DNV ibone uvavanyo lwe-hydrostatic kwi-10% yemveliso.
Isicelo:Ulwandiso lweMbhobho yeGesi ye-Asia eseMbindini-China (Umgca D), ethwala igesi yendalo esuka kwiindawo zegesi e-Uzbekistan idlula eTajikistan ukuya kumda waseTshayina. Ubude bomgca opheleleyo wolu lwandiso: 140 km. Lo mbhobho unqumla kwiintaba zentaba zasePamir, kuquka iindawo ezine ezisebenzayo zokuphambuka kwenyikima, iindawo ezintathu ezinkulu zokuwela umlambo, kunye notshintsho lokuphakama ukusuka kwi-400m ukuya kwi-2,800m.
Imingeni yoBugcisa kunye neZisombululo:
● Ukuphakama okuphezulu kunye nokuguquguquka kwamaqondo obushushu– Ukuphakama kwepayipi kuphakathi kwe-400m ukuya kwi-2,800m, kunye namaqondo obushushu aphakathi ukusuka kwi--35°C ebusika ukuya kwi-+45°C ehlotyeni. Iipayipi ze-X70 ezingama-48" zazifuna ukuqina kobushushu obuphantsi ukuya kwi--46°C (i-Charpy min 50J). Iipleyiti ze-TMCP ezikhethwe yi-Womic zongezelelwe nge-nickel (Ni ≤ 0.50%) ukuze kufezekiswe impembelelo yeCharpy kwi--46°C umyinge we-120J. I-DWTT kwindawo yokucheba ye--20°C: 92-96% yomzimba wepayipi, 82-88% kwi-weld. Zonke iimvavanyo ziphumelele.
● Uyilo olusekelwe kuxinzelelo olusekelwe kwi-seismic fault crossing– Amacandelo amane emibhobho anqumla iimpazamo ezisebenzayo kunye nokufuduka komhlaba okunokwenzeka ukuya kuthi ga kwi-1.5m. Umbhobho wenzelwe uyilo olusekelwe kuxinzelelo (olusekelwe kuxinzelelo). Oku kufuna imibhobho ye-X70 enomlinganiselo othile wesivuno ≤ 0.85 (API 5L PSL2 ivumela i-0.93) kunye nokwandiswa okufanayo ≥ 15%. I-Womic ivelise i-X70 ekhethekileyo "enoxinzelelo oluphezulu" enomlinganiselo wesivuno 0.80-0.84 kunye nokwandiswa okufanayo 16-18%. Sikwabonelele ngovavanyo lokuxinana olupheleleyo (hayi nje umcu) ukuqinisekisa amandla oxinzelelo.
● Indawo yeentaba eneemfuno ezigqithisileyo zokugoba– Lo mbhobho uquka i-22 km yepayipi engama-48" efakwe kwiindawo ezinamathambeka angama-20-30 degrees. Ukugoba okubandayo kwepayipi ye-X70 kunqongophele (i-API 5L ivumela i-1.5° nge-12m nganye). Iipayipi ezibonelelwe yi-Womic ezineejoyinti ezinde kakhulu ze-18m kwiindawo ezithe tye kunye neejoyinti ze-12m kwiindawo ezigobileyo. Sikwaqhube uvavanyo lokugoba kwiisampuli ezipheleleyo: iipayipi ezingama-48" × 19.0mm zazigobile kubanda ukuya kwi-2.0° nge-12m nganye ngaphandle kokuqhekeka (kuqinisekiswe yi-UT kunye ne-MT emva kokugoba).
● Ukuwela umlambo okufuna udonga olunzima– Iindlela ezintathu zokuwela umlambo (ii-Oxus ributaries) zazifuna i-22.2mm WT endaweni ye-19.0mm ukuze kubekho ukuwohloka okongezelelweyo kunye nokumelana nokugoba ngexesha lokufakelwa kokutsalwa. I-Womic isebenzise inkqubo ye-UOE kwezi payipi ukuze ifikelele kwi-ovality ≤ 0.2% (i-0.12-0.18%) yokwenyani, ukuqinisekisa ukuba idlula kakuhle kwimbobo. Iipayipi ezityebileyo zodonga nazo zazifuna ukufakelwa kobushushu obuphantsi ngexesha lokuwelda (≤ 2.0 kJ/mm) ukuze kugcinwe ukuqina kwe-HAZ.
● Uthutho olude kumazwe amathathu– Iipayipi zenziwa kwisityalo saseWomic eTianjin, zathunyelwa ngololiwe ukuya eAlmaty (eKazakhstan), zaza zathunyelwa kwiilori ukuze zithunyelwe kwiindawo zokwakha eUzbekistan naseTajikistan. Umgama opheleleyo wokuhamba: ngaphezulu kwe-5,000 km. IWomic isebenzise iimoto zikaloliwe ezikhethekileyo ezineenkxaso ezifakwe i-pad kunye ne-banding yentsimbi. Ipayipi nganye yaskenwa nge-RFID kuyo yonke indawo yokudluliselwa. Akukho payipi yonakele ngexesha lokuhanjiswa nangona imida emithathu yayiwela kwaye i-6 yayidluliselwa.
● Iimfuneko ezigqithisileyo zokugquma ukuze kubonakale i-UV kwindawo ephakamileyo– Kwi-2,800m ukuphakama, imitha ye-UV iphezulu ngama-40% kunakwinqanaba lolwandle. I-3LPE esemgangathweni inokonakala kwi-UV ephezulu. I-Womic ifake i-3LPE kunye nomaleko ophezulu ozinzileyo we-UV (umxholo omnyama wekhabhoni yi-2.5% xa kuthelekiswa nomgangatho we-2.0%). Ingubo iphumelele uvavanyo olukhawulezileyo lwe-UV weathering (iiyure ezili-1,000 ze-QUV, ukugcinwa kwe-gloss ≥ 80%). Amandla e-UV ahlala > 200 N/cm emva kokuvezwa yi-UV.
● Iziphumo:Ulwandiso lombhobho oluziikhilomitha ezili-140 lwagqitywa lwaza lwaqaliswa ukusebenza kwikota yesibini ka-2025. Zonke iitoni ezingama-75,800 zeepayipi ze-X70 PSL2 ziphumelele ukuhlolwa kwe-TÜV ngaphandle kokulahlwa. Amacandelo oyilo olusekelwe kuxinzelelo asinde kwiziganeko ezibini zenyikima (ubukhulu obuyi-4.2 kunye no-5.1) kwiinyanga zokuqala ezili-18 zokusebenza ngaphandle kwezimpawu zokugoba okanye ukuvuza. Umthengi (inkampani yegesi yesizwe yase-Uzbekistan) unike indumiso esemthethweni kwi-Womic Steel "ngolawulo lomgangatho olubalaseleyo kunye nenkxaso yobugcisa." I-Womic ngoku ngumthengisi okhethwayo wamacandelo exesha elizayo e-Line D.
Qhagamshelana:
Iwebhusayithi: www.womicsteel.com
I-imeyile: sales@womicsteel.com
Ucingo / WhatsApp / WeChat:
UVictor: +86 15575100681
UJack: +86 18390957568
I-Womic Steel – Iqabane lakho elithembekileyo leepayipi ze-API 5L X70 LSAW zemigca yegesi enoxinzelelo oluphezulu kakhulu, iipayipi ezinqumla ilizwe, ukusetyenziswa kwe-arctic, kunye neendawo ezineenyikima ezinoxinzelelo olukhulu kwihlabathi liphela.
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