Thaum lub Cuaj Hlis, Tuam Tshoj thiab Russia tau kos npe rau daim ntawv cog lus rau Lub Hwj Chim ntawm Siberia-2 natural gas pipeline. Lub raj xa dej, tsim los ntawm Mongolia, lub hom phiaj muab cov pa roj ntuj los ntawm Russia thaj av sab hnub poob mus rau Tuam Tshoj. Nrog lub peev xwm xa tawm txhua xyoo ntawm 50 billion cubic meters, nws xav tias yuav ua haujlwm nyob ib puag ncig xyoo 2030.
Lub zog ntawm Siberia-2 yog ntau tshaj li lub zog kav dej; nws yog lub tswv yim lever rau reshaping lub ntiaj teb no kev txiav txim. Nws undermines Western lub zog hegemony, sib sib zog nqus kev sib koom tes ntawm Tuam Tshoj thiab Russia, thiab invigorates lub regional economic tseem ceeb. Nws kuj tseem muab cov piv txwv zoo ntawm kev sib tw yeej-yeej hauv lub ntiaj teb multipolar. Txawm hais tias ntsib ntau yam kev sib tw, geopolitical, thiab ecological cov teeb meem, qhov project txoj kev muaj txiaj ntsig zoo hla ciam teb ua lag luam, dhau los ua qhov project tseem ceeb hauv kev txhawb nqa lub tsev hauv zej zog nrog kev sib koom yav tom ntej rau noob neej. Raws li Putin tau hais hauv kev kos npe, "Lub raj xa dej no yuav khi peb lub neej yav tom ntej ua ke."
Raws li lub tuam txhab kev lag luam txawv teb chaws tshwj xeeb hauv cov kav dej thiab cov hlau tshwj xeeb, Royal Steel Group tau koom nrog "Power of Siberia 2" natural gas pipeline project, thaum tseem txhawb zog kev koom tes thiab kev loj hlob hauv cheeb tsam txoj cai ntawm Tuam Tshoj, Russia, thiab Mongolia.
X80 steel yog cov qauv ntsuas rau cov kav dej muaj zog, ua raws li API 5L 47th tsab qauv. Nws muaj qhov tsawg kawg nkaus tawm lub zog ntawm 552 MPa, lub zog tensile ntawm 621-827 MPa, thiab ib qho kev tawm los-rau-lub zog piv ntawm 0.85 lossis tsawg dua. Nws cov txiaj ntsig tseem ceeb yog nyob rau hauv kev tsim qauv hnyav, zoo heev toughness, thiab optimized weldability.
Cov ntawv thov ib txwm muaj xws li:
Tuam Tshoj-Russia East Line Natural Gas Pipeline: Siv X80 steel thoob plaws, nws kis tau 38 billion cubic meters ntawm roj ib xyoos ib zaug thiab hla permafrost thiab seismically active cheeb tsam, teeb tsa lub ntiaj teb no benchmark rau onshore pipeline siv tshuab.
West-East Gas Pipeline III Project: X80 steel kav nyiaj ntau dua 80% ntawm tag nrho cov kev siv, txhawb nqa kev thauj mus los ntawm cov roj av zoo los ntawm Tuam Tshoj sab hnub poob mus rau thaj tsam Yangtze River Delta.
Deepwater roj thiab roj kev txhim kho: Nyob rau hauv Liwan 3-1 gas teb project nyob rau hauv South Tuam Tshoj Hiav Txwv, X80 seamless steel kav yog siv rau submarine pipelines ntawm cov dej tob tshaj 1,500 meters, nrog ib tug sab nraud compressive zog ntawm 35 MPa.
X90 steel sawv cev rau tiam thib peb ntawm cov kav dej muaj zog, ua raws li API 5L 47th tsab qauv. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 621 MPa, lub zog tensile ntawm 758-931 MPa, thiab cov pa roj carbon sib npaug (Ceq) ntawm 0.47% lossis tsawg dua. Nws cov txiaj ntsig tseem ceeb suav nrog kev muaj zog ntau dua, kev sib tw weldability, thiab qis-kub adaptability.
Cov xwm txheej uas siv tau xws li:
Lub zog ntawm Siberia 2 Pipeline: Raws li cov khoom siv tseem ceeb ntawm txoj haujlwm, X90 steel yeeb nkab yuav nqa cov roj tsheb thauj mus los ntawm Russia lub West Siberian roj av mus rau North China. Raws li kev ua haujlwm hauv 2030, cov roj xa tawm txhua xyoo yuav tsum suav txog ntau dua 20% ntawm Tuam Tshoj tag nrho cov kav xa hluav taws xob xa mus.
Central Asia Natural Gas Pipeline Kab D: Nyob rau hauv cov av saline heev nyob rau hauv Uzbek seem, X90 steel yeeb nkab, ua ke nrog ib tug 3PE + cathodic tiv thaiv system, muaj nws cov kev pab cuam lub neej txuas mus rau 50 xyoo.
3PE txheej muaj cov epoxy hmoov txheej (FBE) primer, cov nplaum nruab nrab txheej, thiab polyethylene (PE) topcoat, nrog rau tag nrho cov thickness ntawm ≥2.8mm, tsim ib tug "rigid + saj zawg zog" composite tiv thaiv system:
FBE puag txheej, nrog lub thickness ntawm 60-100μm, chemically bonds rau steel yeeb nkab nto, muab zoo adhesion (≥5MPa) thiab cathodic disbondment kuj (peel vojvoog ≤8mm ntawm 65 ° C / 48h).
Intermediate Adhesive: 200-400μm tuab, ua los ntawm hloov EVA resin, lub cev entangles nrog FBE thiab PE, nrog lub zog tev ntawm ≥50N / cm2 los tiv thaiv interlayer sib cais.
Sab nrauv PE: ≥2.5mm tuab, ua los ntawm high-density polyethylene (HDPE), nrog rau Vicat softening point ≥110 ° C thiab UV aging kuj proven los ntawm 336-teev xenon arc teeb kuaj (tensile zog tuav ≥80%). Haum rau siv nyob rau hauv Mongolian grasslands thiab permafrost ib puag ncig.
Royal Steel Group, nrog rau nws lub luag haujlwm ntawm "Cov Khoom Siv Tshiab Tsav Tsheb Tsav Tsheb Hluav Taws Xob," txuas ntxiv muab kev ua haujlwm siab, txhim khu kev qha steel yeeb nkab khoom thiab cov kev pabcuam rau kev tsim kho hluav taws xob thoob ntiaj teb.
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