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    Qhov zoo ntawm kev siv kauv submerged arc welded steel kav rau hauv av kav dej

    Qhov zoo ntawm kev siv kauv submerged arc welded steel kav rau hauv av kav dej pipelines featured duab
    • Qhov zoo ntawm kev siv kauv submerged arc welded steel kav rau hauv av kav dej

    Cov lus piav qhia luv luv:

    Thaum tso cov dej hauv av hauv av, nws yog ib qho tseem ceeb kom xaiv hom yeeb nkab raug kom ntseeg tau ntev thiab ntev. Qhov kev xaiv nrov rau cov dej hauv av yog muab cov yeeb nkab welded, tseem hu ua cov yeeb nkab swsaw steel yeeb.


    Khoom Qhia Qhia

    Khoom Ntawv

     SSAW steel yeeb nkabyog hom kauv submerged arc Welded yeeb nkab kheev siv ntau yam kev siv, suav nrog cov kab hauv av. Nws cov txheej txheem sib txawv vuam ua cov kav dej loj ua rau cov kav dej loj

    Cov Cuab Yeej Cuab Yeej Cuab Yeej

    qib hlau

    Yam tsawg kawg nkaus xwb Zog
    MPa

    Lub zog tensile

    Yam tsawg kawg nkaus elongation
    %

    Yam tsawg kawg nkaus cuam tshuam lub zog
    J

    Teev cov tuab
    mm

    Teev cov tuab
    mm

    Teev cov tuab
    mm

    Ntawm sim ntsuas qhov kub ntawm
     

    <16

    > 1605

    <3

    ≥40

    		 I≤40

    -20 ℃

    0 ℃

    20 ℃
    S235jrh

    235

    22

    360-510

    360-510

    24

    -

    -

    27
    S275j0h

    275

    26

    430-580

    410-560

    20

    -

    27

    -
    S275j2h

    27

    -

    -
    S355j0h

    365

    345

    510-680

    470-630

    20

    -

    27

    -
    S355j2h

    27

    -

    -
    S355k2h

    40

    -

    -

    Ib qho ntawm qhov zoo ntawm kev siv kauv submerged arc welded steel yeeb nkab rau cov dej hauv av yog nws lub zog siab thiab lub zog. Cov txheej txheem vuam tsim cov yeeb nkab muaj zog thiab txhim khu kev qha uas tuaj yeem tiv thaiv lub siab thiab qhov hnyav ntawm kev faus av. Lub zog no yog qhov tseem ceeb rau kev tiv thaiv kom xau thiab ua kom muaj kev ntseeg siab ntev ntawm cov kav dej.

    Ib qho ntxiv, SSAW cov yeeb nkab steel yog tiv taus corrosion, ua rau nws xaiv zoo rau cov dej noo thiab cov dej num ib puag ncig. Qhov kev tiv thaiv corrosion no yuav pab ntev lub neej ntawm koj cov kav dej thiab txo qhov xav tau kev tu ncua thiab kho ntau zaus.

    Yeeb Nkab Rau Cov Dej Av

    Lwm qhov txiaj ntsig ntawm kev siv kauv submerged arc welded steel yeeb nkab rau cov dej hauv av yog nws qhov yooj thiab hloov tau. Cov txheej txheem vuam tuaj yeem tsim cov kav dej uas tsim cov kab sib txawv, ua kom haum rau ntau yam dej xaim cov ntaub ntawv thov. Tsis tas li ntawd, qhov yooj ntawm swsaw steel yeeb nkab ua rau nws yooj yim rau nruab ob qho kev txhim kho thiab ua haujlwm, tshwj xeeb tshaj yog nyob hauv thaj chaw muaj kev sib tw lossis cov nyom.

     

    Tshuaj Muaj Tshuaj

    Qib hlau

    Hom de-oxidation a

    % los ntawm huab hwm coj, siab tshaj plaws

    Hlau Npe Hlau

    Hlau tooj

    C

    C

    Si

    Mn

    P

    S

    Nb

    S235jrh

    1.0039

    FF

    0,17

    -

    1,40

    0,040

    0,040

    0.009

    S275j0h

    1.0149

    FF

    0,20

    -

    1,50

    0,035

    0,035

    0,009

    S275j2h

    1.0138

    FF

    0,20

    -

    1,50

    0,030

    0,030

    -

    S355j0h

    1.0547

    FF

    0,22

    0,55

    1,60

    0,035

    0,035

    0,009

    S355j2h

    1.0576

    FF

    0,22

    0,55

    1,60

    0,030

    0,030

    -

    S355k2h

    1.0512

    FF

    0,22

    0,55

    1,60

    0,030

    0,030

    -

    a. Cov txheej txheem Deagidation yog tsim raws li hauv qab no:

    FF: Nkaus tua cov hlau uas muaj cov khoom siv nitrogen khi rau hauv cov nyiaj muaj peev xwm khi muaj nitrogen (piv txwv li min lossis 0,015% soluble al).

    b. Tus nqi siab tshaj plaws rau Nitrogen tsis siv yog tias cov tshuaj lom neeg muaj pes tsawg leeg ntawm 0,020% nrog tsawg kawg AL / N piv txog 2: 1, lossis yog tias muaj lwm cov n-khi cov khoom n-khi tam sim no. Cov n-khi cov ntsiab yuav tsum tau sau cia hauv daim ntawv tshuaj xyuas.

    Ntxiv rau lub zog, durability, thiab yooj-muab kauv submerged arc welded steel yeeb nkab raug nqi rau lwm hom yeeb nkab. Cov nqi vuam muab txo cov nqi ntau lawm, ua rau nws cov kev xaiv nyiaj txiag ntau dua rau cov dej ntws loj. Lub sijhawm ntev divility thiab kev saib xyuas me me ntawm SSAW steel yeeb quav tshuaj kuj pab txhawb nqa cov nqi ntawm lub neej ntawm kab dej.

    Ssaw yeeb nkab

    Zuag qhia tag nrho, muaj ntau ntau qhov zoo los siv kauv submerged arc welded steel welded steel welded, duretity, yooj yim, thiab tus nqi-ua hauj lwm zoo. Cov yeeb yam no ua rau nws muaj kev xaiv txhim khu kev qha thiab siv tau rau hauv av tsheb thauj khoom, cov ntawv thov kev lag luam, lossis cov phiaj xwm kev ua liaj ua teb.

    Hauv cov ntsiab lus xaus, thaum nws los xaiv cov yeeb nkab zoo tshaj plawsRau cov kav dej hauv av, kauv submerged arc welded steel yeeb nkab yog qhov kev xaiv zoo tshaj plaws. Nws cov kauv Welded kev tsim kho muab lub zog, durability thiab corrosion tsis kam rau kev xaiv cov yeeb nkab rau txhua qhov ntau thiab tsawg. Los ntawm xaiv kauv submerged arc welded steel yeeb nkab, koj tuaj yeem ua kom muaj kev ntseeg siab steel, koj tuaj yeem ua rau koj muaj kev thaj yeeb nyab xeeb thiab kev tso siab rau koj cov dej.

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