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    Nkag siab qhov tseem ceeb ntawm Cov Khoom Siv Hluav Taws Xob Zoo: X42 SSAW Yeeb Nkab, ASTM A139 thiab EN10219

    Nkag siab qhov tseem ceeb ntawm Cov Khoom Siv Hluav Taws Xob Zoo: X42 SSAW Yeeb Nkab, ASTM A139 thiab EN10219 Featured Duab
    • Nkag siab qhov tseem ceeb ntawm Cov Khoom Siv Hluav Taws Xob Zoo: X42 SSAW Yeeb Nkab, ASTM A139 thiab EN10219

    Lus piav qhia luv luv:

    Thaum nws los txog rau kev thauj mus los ntawm cov roj av, cov raj xa dej ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab muaj txiaj ntsig zoo ntawm cov peev txheej no.natural gas pipe kev xaiv yog qhov kev txiav txim siab tseem ceeb vim nws cuam tshuam ncaj qha rau kev ntseeg tau thiab kev nyab xeeb ntawm tag nrho cov roj xa hluav taws xob network.Nyob rau hauv no blog, peb yuav delve rau hauv qhov tseem ceeb ntawm zoo natural gas yeeb nkab, tsom rau X42 SSAW yeeb nkab, ASTM A139, thiab EN10219.


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    Khoom cim npe

     X42SSAWcevyog ib hom ntawm cov pa roj carbon monoxide feem ntau siv hauv kev lag luam roj thiab roj.Nws yog tsim los siv cov txheej txheem submerged arc vuam uas tsim cov kav dej zoo thiab ruaj khov.X42 SSAW yeeb nkab muaj lub zog siab thiab cov khoom siv tshuaj zoo heev, ua rau nws zoo tagnrho rau cov kev xav tau ntawm kev thauj mus los ntawm cov roj av.Nws zoo heev tiv thaiv corrosion thiab cracking ua rau nws yog thawj qhov kev xaiv rau pipeline tsim tej yaam num.

     ASTM A139 Cov khoom lag luamyog lwm tus qauv tseem ceeb rau cov kav dej ntuj.Cov lus qhia no suav nrog electrofusion (arc) welded ncaj lossis kauv seam steel yeeb nkab siv rau kev xa cov pa roj, chav dej, dej thiab lwm yam kua.ASTM A139 yeeb nkab tau paub txog nws txoj kev ntseeg siab thiab kev ua haujlwm ntev hauv kev ua haujlwm hnyav tshaj plaws.Cov kav dej no tau tsim los tiv thaiv kev kub ntxhov thiab qhov kub thiab txias, ua rau lawv zoo tagnrho rau kev sib kis thiab kev siv roj av.

    Txuj Qib hlau Tshuaj muaj pes tsawg leeg Tensile zog Charpy Impact Test thiab Drop Weight Tear Test
    C Mn P S Ti Lwm yam CEV 4 (%) Rt0.5 Mpa Yield zog Rm Mpa Tensile zog A% L0 = 5.65 √ S0 Elongation
    max max max max max   max max min max min max  
    API Spec 5L (PSL2) B 0.22 1.20 0.025 ib 0.015 ib 0.04 ib Rau txhua qib steel: Kev xaiv ntxiv Nb lossis V lossis ib qho kev sib xyaw ua ke
    ntawm lawv, tab sis
    Nb+V+Ti ≤ 0.15%,
    thiab Nb + V ≤ 0.06% rau qib B    		 0.25 0.43 ib 241 448 ib 414 ib 758 ib Yuav suav tau
    raws li cov
    cov qauv hauv qab no:
    e=1944·A0.2/U0.9
    A: Hla ntu
    thaj tsam ntawm cov qauv hauv mm2 U: Tsawg kawg tensile zog hauv
    Mpa    		 Muaj cov kev xeem uas yuav tsum tau muaj thiab cov kev xeem xaiv tau.Yog xav paub ntxiv, saib tus qauv qub.
    X42 0.22 1.30 Nws 0.025 ib 0.015 ib 0.04 ib 0.25 0.43 ib 290 496 ib 414 ib 758 ib
    X46 0.22 1.40 Nws 0.025 ib 0.015 ib 0.04 ib 0.25 0.43 ib 317 524 ib 434 ib 758 ib
    X52 0.22 1.40 Nws 0.025 ib 0.015 ib 0.04 ib 0.25 0.43 ib 359 ib 531 ib 455 758 ib
    X56 0.22 1.40 Nws 0.025 ib 0.015 ib 0.04 ib 0.25 0.43 ib ib 386 544 ib 490 ib 758 ib
    X 60 0.22 1.40 Nws 0.025 ib 0.015 ib 0.04 ib 0.25 0.43 ib 414 ib 565 ib 517 ib 758 ib
    X 65 0.22 1.45 Nws 0.025 ib 0.015 ib 0.06 ib 0.25 0.43 ib 448 ib 600 531 ib 758 ib
    X 70 0.22 1.65 ib 0.025 ib 0.015 ib 0.06 ib 0.25 0.43 ib 483 ib 621 ib 565 ib 758 ib
    X80 0.22 1.65 ib 0.025 ib 0.015 ib 0.06 ib 0.25 0.43 ib 552 ib 690 ib 621 ib 827 ib
                   Si  Mn+Cu+Cr  Ni  Tsis muaj   V
    1) CE(Pcm) = C+30+20+60+15+10+58
                                 Mn  Cr+Mo+V     Ni+Cu 
    2) CE(LLW)= C+6+5+15

     TS EN 10219yog tus qauv European uas qhia txog cov txheej txheem kev xa khoom rau cov khoom txias-tsim welded structural hollow seem ntawm cov hlau tsis-alloy thiab nplua-grained steel.Txawm hais tias EN10219 tsis yog tshwj xeeb tsim rau cov kav dej nkev, nws cov kev cai nruj rau kev ua haujlwm ntev, qhov tseeb thiab cov khoom siv tshuab ua rau nws muaj kev xaiv tsim nyog rau qee qhov kev siv roj av.Siv cov kav dej uas ua raws li EN10219 cov qauv tuaj yeem txhim kho tag nrho kev ncaj ncees thiab kev pabcuam lub neej ntawm koj cov khoom siv hluav taws xob.

    Qhov tseem ceeb ntawm kev xaiv cov pa roj carbon zoo tsis tuaj yeem ua dhau los.Cov kav dej tsis zoo lossis cov kav dej tsis zoo tuaj yeem ua rau muaj kev pheej hmoo loj rau ib puag ncig, kev nyab xeeb rau pej xeem thiab kev ntseeg tau tag nrho ntawm cov khoom siv roj.Yog li ntawd, cov khoom siv hluav taws xob hluav taws xob, cov neeg ua haujlwm kav dej thiab cov thawj coj ua haujlwm yuav tsum ua ntej siv cov ntaub ntawv pov thawj thiab tsim tau zoo xws li X42 SSAW yeeb nkab, ASTM A139 thiab EN10219.

    SSAW Tube

    Hauv cov ntsiab lus,natural gas pipekev xaiv yog ib qho tseem ceeb ntawm kev tsim cov kav dej thiab kev tsim kho.Kev txiav txim siab zoo, xws li cov khoom siv zog, kev tiv thaiv corrosion, thiab ua raws li cov qauv kev lag luam, yuav tsum tau tsav txoj kev txiav txim siab.Los ntawm kev xaiv cov kav dej txhim khu kev qha thiab muaj npe nrov, xws li X42 SSAW pipeline, ASTM A139, thiab EN10219, cov neeg muaj feem xyuam tuaj yeem ua kom muaj kev nyab xeeb mus ntev thiab kev nyab xeeb ntawm kev thauj mus los ntawm cov roj av.

    Thaum kawg, nws yog ib qho tseem ceeb uas yuav tsum tau ua qhov tseem ceeb rau kev siv cov raj xa hluav taws xob zoo uas ua tau raws li cov qauv kev lag luam thiab muaj cov khoom tsim nyog thiab cov khoom siv tshuaj lom neeg.Los ntawm kev xaiv cov kev xaiv txhim khu kev qha xws li X42 SSAW pipeline, ASTM A139 thiab EN10219, cov neeg ua haujlwm kav dej tuaj yeem ua kom muaj kev ncaj ncees mus ntev thiab kev nyab xeeb ntawm lawv lub tshuab xa hluav taws xob.

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