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    Mapaipi a Steel Welded Carbon Steel Amapaipi Apansi Pansi Pansi Pansi - EN10219

    Mapaipi a Steel Welded Carbon Steel Amapaipi Apansi Pansi Pansi Pansi - EN10219 Chithunzi Chowonetsedwa
    • Mapaipi a Steel Welded Carbon Steel Amapaipi Apansi Pansi Pansi Pansi - EN10219

    Kufotokozera Kwachidule:

    Kuyambitsa spiral welded carbon steel pipe yopangira mapaipi apansi panthaka. Chitoliro chapamwambachi chimagwirizana ndi miyezo ya EN10219 ndipo chimapereka maubwino angapo pazogwiritsa ntchito m'mafakitale ndi malonda.


    Tsatanetsatane wa Zamalonda

    Zolemba Zamalonda

    Mmodzi mwa ubwino waukulu waspiral welded carbon steel pipendikutha kupanga mipope ya ma diameter osiyanasiyana pogwiritsa ntchito mizere yofanana m'lifupi. Izi ndizopindulitsa makamaka pazogwiritsa ntchito zomwe zimafuna tizitsulo zopapatiza kuti zipange mapaipi achitsulo m'mimba mwake. Kupanga kwatsopano kumeneku kumatsimikizira kuti mapaipi omwe amapangidwa sakhala okhazikika komanso amphamvu, komanso amakhala abwino.

    Spiral welded carbon steel mapaipi amapangidwa mwapadera kuti akhazikitse mapaipi apansi panthaka ndipo amatsatira zofunikira zaEN10219. Muyezo uwu ukufotokoza zofunikira zaukadaulo zoperekera zigawo zazitsulo zokhala ndi zitsulo zopanda aloyi ndi zitsulo zowoneka bwino. Choncho chitolirocho ndi choyenera kugwiritsidwa ntchito m'mapaipi a gasi apansi panthaka pomwe kukana dzimbiri ndi kusakhazikika kwadongosolo ndikofunikira.

    Mechanical Property

    kalasi yachitsulo mphamvu zochepa zokolola
    Mpa    		 Kulimba kwamakokedwe Kutalikira pang'ono
    %    		 Mphamvu zochepa zomwe zimakhudzidwa
    J
    Makulidwe odziwika
    mm    		 Makulidwe odziwika
    mm    		 Makulidwe odziwika
    mm    		 pa kutentha kwa mayeso a
      ＜16 ＞16≤40 ＜3 ≥3≤40 ≤40 -20 ℃ 0 ℃ 20 ℃
    Chithunzi cha S235JRH 235 225 360-510 360-510 24 - - 27
    Chithunzi cha S275J0H 275 265 430-580 410-560 20 - 27 -
    Chithunzi cha S275J2H 27 - -
    Chithunzi cha S355J0H 365 345 510-680 470-630 20 - 27 -
    Chithunzi cha S355J2H 27 - -
    Chithunzi cha S355K2H 40 - -

    Chemical Composition

    Chitsulo kalasi Mtundu wa de-oxidation a % ndi misa, pazipita
    Dzina lachitsulo Nambala yachitsulo C C Si Mn P S Nb
    Chithunzi cha S235JRH 1.0039 FF 0,17 - 1,40 0,040 0,040 0.009
    Chithunzi cha S275J0H 1.0149 FF 0,20 - 1,50 0,035 0,035 0,009
    Chithunzi cha S275J2H 1.0138 FF 0,20 - 1,50 0,030 0,030 -
    Chithunzi cha S355J0H 1.0547 FF 0,22 0,55 1,60 0,035 0,035 0,009
    Chithunzi cha S355J2H 1.0576 FF 0,22 0,55 1,60 0,030 0,030 -
    Chithunzi cha S355K2H 1.0512 FF 0,22 0,55 1,60 0,030 0,030 -
    a. Njira ya deoxidation imayikidwa motere:

    FF: Chitsulo chophedwa kwathunthu chokhala ndi zinthu zomangira za nayitrogeni mu kuchuluka kokwanira kumanga nayitrogeni yomwe ilipo (mwachitsanzo min. 0,020 % okwana Al kapena 0,015 % sungunuka Al).

    b. Mtengo wapamwamba wa nayitrogeni sugwira ntchito ngati mankhwala akuwonetsa kuchuluka kwa Al zomwe zili 0,020 % ndi chiŵerengero chochepa cha Al/N cha 2:1, kapena ngati zinthu zina zokwanira za N-binding zilipo. Zinthu zomangiriza za N zidzalembedwa mu Inspection Document.

    Kuphatikiza pa kusinthasintha kwake popanga mapaipi akulu achitsulo m'mimba mwake, mapaipi achitsulo ozungulira ozungulira amapereka zabwino zina zambiri. Ukadaulo wake wowotcherera wozungulira umatsimikizira kuti chitolirocho chili ndi malo osalala amkati, kuchepetsa kutsika kwamphamvu ndikuwongolera mawonekedwe otaya. Izi ndizofunikira makamaka pamapaipi achilengedwe a gasi, pomwe kuyenda bwino komanso kosalephereka ndikofunikira kuti ntchitoyo igwire bwino ntchito.

    Kuphatikiza apo, spiral welded carbon steel chitoliro chimalimbana kwambiri ndi dzimbiri, kupangitsa kuti ikhale yabwino kwa makhazikitsidwe apansi panthaka pomwe kukhudzana ndi chinyezi ndi zinthu zadothi kungasokoneze kukhulupirika kwa chitoliro. Zomangamanga zake zolimba komanso zolimba zimapangitsa kuti ikhale yabwino kugwiritsidwa ntchito kwa nthawi yayitali m'malo ovuta a chilengedwe.

    Kugwiritsiridwa ntchito kwachitsulo cha carbon zitsulo kumatsimikizira kuti mapaipi ali ndi zida zabwino zamakina, kuphatikizapo mphamvu zowonongeka komanso kukana mphamvu. Izi zimapangitsa kukhala chisankho chodalirikapansi pa nthaka gasi chitoliromakhazikitsidwe, monga mapaipi akhoza kukhala pansi katundu wakunja ndi kuwonongeka zotheka.

    Mwachidule, mapaipi a spiral welded carbon steel ndiye njira yabwino kwambiri yopangira mapaipi apansi panthaka. Kapangidwe kake katsopano kamalola kupanga mapaipi akulu akulu achitsulo kuchokera kuzitsulo zopapatiza, kuwonetsetsa kusasinthika komanso kukhazikika. Chitolirocho chimakwaniritsa zofunikira za muyezo wa EN10219 ndipo chimakhala ndi kukana kwa dzimbiri, kusalala kwamkati mkati ndi zida zolimba zamakina, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito modalirika kwa nthawi yayitali pakuyika mapaipi achilengedwe apansi panthaka.

     

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