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    Inyungu za A252 Icyiciro cya 3 Imiyoboro yicyuma ikoreshwa mukubaka imiyoboro ya peteroli na peteroli

    Inyungu za A252 Icyiciro cya 3 Icyuma Cyuma Cyakoreshejwe Mubikorwa Byimyanda na peteroli Kubaka imiyoboro Yerekanwe
    • Inyungu za A252 Icyiciro cya 3 Imiyoboro yicyuma ikoreshwa mukubaka imiyoboro ya peteroli na peteroli
    • Inyungu za A252 Icyiciro cya 3 Imiyoboro yicyuma ikoreshwa mukubaka imiyoboro ya peteroli na peteroli

    Ibisobanuro bigufi:

    A252 Icyiciro cya 3 Umuyoboro wicyuma, uzwi kandi nkaUmuyoboro wuzuye arc umuyoboro, ni amahitamo azwi yo kubaka imiyoboro y'amazi na peteroli. Iyi miyoboro yagenewe guhangana nuburyo bukabije kandi itanga ibyiza byinshi muribi bikorwa.


    Ibicuruzwa birambuye

    Ibicuruzwa

    Imwe mu nyungu zingenzi zaA252 Icyiciro cya 3 Umuyoboro wibyuma ni imbaraga zidasanzwe kandi ziramba. Iyi miyoboro ikozwe mubyuma byujuje ubuziranenge kandi birwanya cyane kwangirika, kwambara n'ingaruka. Ibi bituma bakoreshwa neza mu miyoboro y'amazi aho bashobora guhura nibintu byangirika n'imitwaro iremereye. Byongeye kandi, imbaraga zabo nigihe kirekire bituma bikoreshwa muburyo bwo kubaka imiyoboro ya peteroli, kuko bagomba guhangana n’umuvuduko mwinshi no guhindura ibidukikije.

    Bisanzwe  Icyiciro Ibigize imiti (%) Umutungo wa Tensile CharpyNot V notch）

    Ikizamini Ingaruka
    c Mn p s Si Ibindi Gutanga ImbaragaMpa） ImbaragaMpa） 0 L0 = 5.65 √ S0） min Ikigereranyo cyo Kurambura （%）
    max max max max max min max min max D ≤ 168.33mm D ＞ 168.3mm
      

     

    GB / T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35   

    Ongeraho NbVTi ukurikije 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     

     

    Guhitamo wongeyeho kimwe mubintu bya NbVTi cyangwa icyaricyo cyose cyo guhuza

    		 175   310   27  Kimwe cyangwa bibiri byerekana ubukana

    Ingaruka zingufu nogukata ahantu hashobora gutorwa. Kuri

    L555, reba ibisanzwe.
    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
      

     

     

    API 5L （PSL 1）

    		 A25 0.21 0.60 0.030 0.030    Icyiciro cya B ibyuma,

    Nb + V ≤ 0,03%;

    ku byuma ≥ urwego B, guhitamo kongera Nb cyangwa V cyangwa ibyabo

    guhuza, na Nb + V + Ti ≤ 0.15%

    		 172   310    （L0 = 50.8mm） kuba

    kubarwa ukurikije formula ikurikira:

    e = 1944 · A0 .2 / U0 .0

    Igisubizo: Agace k'icyitegererezo muri mm2 U: Ntarengwa ntarengwa imbaraga za Mpa

    		  Nta na kimwe

    cyangwa byombi

    Ingaruka

    ingufu na

    kogoshesha

    agace karasabwa nkigipimo cyo gukomera.
    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
    X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    X56 0.26 1.40 0.030 0.030   386 490
    X60 0.26 1.40 0.030 0.030   414 517
    X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

    Iyindi nyungu ya A252 Icyiciro cya 3 cyicyuma nicyuma cyinshi. Iyi miyoboro iraboneka mubunini butandukanye n'ubunini, bigatuma ikoreshwa muburyo butandukanye. Niba kubaka bikeumwandacyangwa umurongo munini wa peteroli, A252 Icyiciro cya 3 cyicyuma gishobora guhindurwa byoroshye kugirango byuzuze ibisabwa byumushinga. Byongeye kandi, iyi miyoboro irashobora gukorwaimiyoboro yubusa, kurushaho kwagura imikoreshereze yabo mumishinga yubwubatsi.

    Usibye imbaraga zayo kandi zinyuranye, umuyoboro wa A252 Icyiciro cya 3 nicyuma kizwi cyane. Iyi miyoboro iroroshye kuyishyiraho kandi isaba kubungabunga bike, kugabanya ibiciro byumushinga. Ikigeretse kuri ibyo, ubuzima bwabo burambye hamwe no kurwanya ruswa byemeza ko bitanga inyungu zikomeye ku ishoramari ry’imyanda kandiumuyoboro w'amavuta umurongoimishinga yo kubaka.

    Umuyoboro wa SSAW

    Iyindi nyungu ikomeye ya A252 Icyiciro cya 3 cyicyuma nicyuma gihuza nuburyo butandukanye bwo kubaka. Iyi miyoboro irashobora gushyirwaho hakoreshejwe uburyo bwo gucukura gakondo cyangwa tekiniki zidafite umwobo nko gucukura icyerekezo cya horizontal, gutobora imiyoboro cyangwa micro-tunnel. Ihinduka ryemerera kwishyiriraho uburyo bunoze kandi buhendutse mugace k’ibidukikije bigoye, harimo imijyi, inzira y’amazi n’ahantu hita ku bidukikije.

    Muri rusange, umuyoboro wa A252 wo mu cyiciro cya 3 utanga ibyiza bitandukanye byo kubaka imiyoboro ya peteroli na peteroli. Imbaraga zabo, kuramba, guhinduranya no gukoresha-igiciro bituma bakora neza kubyo basaba. Yaba ikoreshwa mu kubaka imiyoboro y'amazi cyangwa iyubakwa rya peteroli, iyi miyoboro itanga imikorere yizewe nagaciro kigihe kirekire. Nkigisubizo, bakomeza kuba igisubizo cyo guhitamo kubashakashatsi naba rwiyemezamirimo bashaka ibisubizo birambye kandi byizewe.

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