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    Izinzuzo Zamapayipi Ensimbi Angu-A252 Asezingeni Lesi-3 Asetshenziswa Ekwakhiweni Kwepayipi Lokuhambisa Indle kanye Nele-Petroleum

    Izinzuzo Zamapayipi Ensimbi Angu-A252 Asezingeni Lesi-3 Asetshenziswa Ekwakhiweni Kwepayipi Lokuhambisa Indle kanye Nele-Petroleum Isithombe Esifakiwe
    • Izinzuzo Zamapayipi Ensimbi Angu-A252 Asezingeni Lesi-3 Asetshenziswa Ekwakhiweni Kwepayipi Lokuhambisa Indle kanye Nele-Petroleum
    • Izinzuzo Zamapayipi Ensimbi Angu-A252 Asezingeni Lesi-3 Asetshenziswa Ekwakhiweni Kwepayipi Lokuhambisa Indle kanye Nele-Petroleum

    Incazelo emfushane:

    Ipayipi lensimbi le-A252 Grade 3, elaziwa nangokuthiipayipi le-arc elicwiliswe ngaphakathi elijikelezayo, kuyindlela ethandwayo yokwakha amapayipi endle kanye ne-oyela. Lawa mapayipi aklanyelwe ukumelana nezimo ezimbi kakhulu futhi anikeza izinzuzo eziningi kulezi zinhlelo zokusebenza.


    Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

    Enye yezinzuzo ezibalulekile ze-Ipayipi lensimbi le-A252 lebanga lesi-3 amandla ayo ayingqayizivele kanye nokuqina kwayo. Lawa mapayipi enziwe ngensimbi esezingeni eliphezulu futhi amelana kakhulu nokugqwala, ukuguguleka kanye nokushayeka. Lokhu kuwenza abe mahle kakhulu ukusetshenziswa emapayipini okuhambisa indle lapho angase achayeke khona ezintweni ezigqwalisayo kanye nemithwalo esindayo. Ngaphezu kwalokho, amandla awo nokuqina kwawo kuwenza afaneleke ukusetshenziswa ekwakhiweni kwamapayipi kawoyela, njengoba kumele amelane nokucindezeleka okuphezulu kanye nezimo zemvelo ezishintshayo.

    Okujwayelekile  Ibanga Lensimbi Izakhi Zamakhemikhali (%) Impahla Eqinile I-Charpy(Inotshi ye-V)

    Ukuhlolwa Komthelela
    c Mn p s Si Okunye Amandla Okukhiqiza(Mpa) Amandla Okudonsa(Mpa) （L0=5.65 √ S0）Isilinganiso Sokwelula esincane （%）
    ubuningi ubuningi ubuningi ubuningi ubuningi umzuzu ubuningi umzuzu ubuningi U-D ≤ 168.33mm U-D ＞ 168.3mm
      

     

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35   

    Ukungeza i-NbVTi ngokuhambisana ne-GB/T1591-94

    		 215   335   15 > 31  
    Q215B ≤ 0.15 0.25-0.55 0.045 0.045 0.035 215 335 15 > 31
    Q235A ≤ 0.22 0.30 ＜ 0.65 0.045 0.050 0.035 235 375 15 >26
    Q235B ≤ 0.20 0.30 ≤ 1.80 0.045 0.045 0.035 235 375 15 >26
    Q295A 0.16 0.80-1.50 0.045 0.045 0.55 295 390 13 >23
    Q295B 0.16 0.80-1.50 0.045 0.040 0.55 295 390 13 >23
    Q345A 0.20 1.00-1.60 0.045 0.045 0.55 345 510 13 >21
    Q345B 0.20 1.00-1.60 0.045 0.040 0.55 345 510 13 >21
      

     

     

    GB/

    T9711-

    2011

    (PSL1)

    		 L175 0.21 0.60 0.030 0.030     

     

    Ukwengeza okukodwa kwezinto ze-NbVTi noma noma iyiphi inhlanganisela yazo ngokuzithandela

    		 175   310   27  Okukodwa noma okubili kwenkomba yokuqina

    amandla omthelela kanye nendawo yokugunda kungakhethwa.

    L555, bheka okujwayelekile.
    L210 0.22 0.90 0.030 0.030 210 335 25
    L245 0.26 1.20 0.030 0.030 245 415 21
    L290 0.26 1.30 0.030 0.030 290 415 21
    L320 0.26 1.40 0.030 0.030 320 435 20
    L360 0.26 1.40 0.030 0.030 360 460 19
    L390 0.26 1.40 0.030 0.030 390 390 18
    L415 0.26 1.40 0.030 0.030 415 520 17
    L450 0.26 1.45 0.030 0.030 450 535 17
    L485 0.26 1.65 0.030 0.030 485 570 16
      

     

     

    I-API 5L (PSL 1)

    		 A25 0.21 0.60 0.030 0.030    Ngensimbi yebanga B,

    I-Nb+V ≤ 0.03%;

    ngensimbi ≥ grade B, ukwengeza i-Nb noma i-V noma eyabo ngokuzithandela

    inhlanganisela, kanye ne-Nb+V+Ti ≤ 0.15%

    		 172   310    （L0=50.8mm）ukuba

    kubalwe ngokwefomula elandelayo:

    e=1944·A0 .2/U0 .0

    A: Indawo yesampula ku-mm2 U: Amandla amancane okudonsa acacisiwe ku-Mpa

    		  Akukho lutho noma yini

    noma kokubili

    umthelela

    amandla kanye

    ukugunda izinwele

    indawo iyadingeka njengesici sokuqina.
    A 0.22 0.90 0.030 0.030   207 331
    B 0.26 1.20 0.030 0.030   241 414
    X42 0.26 1.30 0.030 0.030   290 414
    I-X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    I-X56 0.26 1.40 0.030 0.030   386 490
    I-X60 0.26 1.40 0.030 0.030   414 517
    I-X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

    Enye inzuzo yepayipi lensimbi le-A252 Grade 3 ukuthi lisebenza ngezindlela eziningi. Lawa mapayipi atholakala ngobukhulu obuhlukahlukene nobukhulu obuhlukahlukene, okwenza afaneleke ezinhlotsheni ezahlukene zokusebenza. Kungakhathaliseki ukuthi wakha ipayipi elincaneumugqa wendlenoma umugqa omkhulu wepayipi likawoyela, ipayipi lensimbi le-A252 Grade 3 lingenziwa ngokwezifiso kalula ukuze lihlangabezane nezidingo ezithile zephrojekthi. Ngaphezu kwalokho, la mapayipi angenziwa abeamapayipi esakhiwo anengxenye engenalutho, ukwandisa ukusetshenziswa kwazo emisebenzini yokwakha.

    Ngaphezu kwamandla ayo kanye nokuguquguquka kwayo, ipayipi lensimbi le-A252 Grade 3 laziwa nangokusebenzisa kahle izindleko. Lawa mapayipi kulula ukuwafaka futhi adinga ukulungiswa okuncane, okunciphisa izindleko zephrojekthi iyonke. Ngaphezu kwalokho, impilo yawo yenkonzo ende kanye nokumelana nokugqwala kuqinisekisa ukuthi anikeza imbuyiselo enamandla ekutshalweni kwezimali kwendle kanyeipayipi likawoyela umugqaamaphrojekthi okwakha.

    Ipayipi le-SSAW

    Enye inzuzo ebalulekile yepayipi lensimbi le-A252 Grade 3 ukuthi lihambisana nezindlela ezahlukahlukene zokwakha. Lawa mapayipi angafakwa kusetshenziswa izindlela zokumba zendabuko noma amasu angenamisele njengokubhoboza okuqondile, ukufaka amapayipi noma ukufaka imisele emincane. Lokhu kuguquguquka kuvumela ukufakwa okusebenzayo nokungabizi kakhulu ezindaweni ezahlukahlukene eziyinselele, kufaka phakathi izindawo zasemadolobheni, imigwaqo yamanzi kanye nezindawo ezizwela imvelo.

    Sekukonke, ipayipi lensimbi le-A252 Grade 3 linikeza izinzuzo ezahlukahlukene zokwakhiwa kwamapayipi endle kanye nephethiloli. Amandla awo, ukuqina, ukuguquguquka kanye nokusebenza kahle kwezindleko kuwenza afaneleke kakhulu kulezi zicelo ezidinga amandla. Kungakhathaliseki ukuthi asetshenziswa ekwakheni amapayipi endle noma amapayipi kawoyela, la mapayipi ahlinzeka ngokusebenza okuthembekile kanye nenani lesikhathi eside. Ngenxa yalokho, ahlala eyisisombululo esikhethwayo konjiniyela kanye nabakhi abafuna izixazululo zamapayipi eziqinile nezithembekile.

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