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    Inyungu za A252 Imiyoboro ya Steel Yicyuma ikoreshwa mubwubatsi bwamateka na peteroli

    Inyungu za A252 Imiyoboro ya Steel Yicyuma ikoreshwa mumyanda na peteroli yumuyoboro wa peteroli yagaragaye
    • Inyungu za A252 Imiyoboro ya Steel Yicyuma ikoreshwa mubwubatsi bwamateka na peteroli
    • Inyungu za A252 Imiyoboro ya Steel Yicyuma ikoreshwa mubwubatsi bwamateka na peteroli

    Ibisobanuro bigufi:

    A252 umuyoboro wa 3 wicyuma, uzwi kandi nkaspiral yazimiye arc umuyoboro, ni amahitamo akunzwe yo kubaka imiyoboro ya peteroli hamwe na peteroli. Iyi miyoboro yagenewe kwihanganira ibihe bikabije kandi itanga inyungu nyinshi muriyi porogaramu.


    Ibisobanuro birambuye

    Ibicuruzwa

    Imwe mu nyungu zingenzi zaA252 Umuyoboro wa 3 nimbaraga zidasanzwe kandi ziramba. Iyi miyoboro ikozwe mubyuma ireme kandi irwanya cyane ruswa, kwambara n'ingaruka. Ibi bituma bakora neza kugirango zikoreshwe mumiyoboro yamaganye aho zishobora guhura nibintu byangiza hamwe nubushyuhe buremereye. Byongeye kandi, imbaraga zabo nukurira bituma bikwiranye no kubaka mubwubatsi bwa peteroli, kuko bagomba kwihanganira imikazo yo hejuru no guhindura imiterere y'ibidukikije.

    Bisanzwe  Icyicaro Abashinzwe imiti (%) Umutungo wa Tensile Chapy(V noch)

    Ikizamini
    c Mn p s Si Ikindi Imbaraga Zitanga umusaruro(MPA) Imbaraga za Tensile(MPA) (L0 = 5.65 √ S0) Umuyoboro wa Min (%)
    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     

     

    Kureka kongeramo kimwe mu bintu bya NBVTI cyangwa guhuza ibyo aribyo byose

    		 175   310   27  Imwe cyangwa ebyiri z'uburaha

    Ingaruka hamwe no kogosha ahantu hashobora guhitamo. Kuri

    L555, reba bisanzwe.
    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    Ku cyiciro b steel,

    Nb + v ≤ 0.03%;

    kuri steel ≥ icyiciro b, guhitamo kongeramo 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

    A: Agace ka sample muri MM2 U: Imbaraga zidasanzwe za tensile muri MPA

    		  Nta na kimwe cyangwa icyaricyo cyose

    cyangwa byombi

    Ingaruka

    imbaraga na

    kogoshe

    agace gasabwa nkibipimo bikomeye.
    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

    Indi nyungu ya A252 umuyoboro wicyuma 3 ni byinshi. Iyi miyoboro iraboneka muburyo butandukanye nubunini, bigatuma bakwiranye nibisobanuro bitandukanye. Niba wubaka ntoUmurongo wa owerCyangwa umurongo munini wa peteroli, umuyoboro wicyiciro cya 3 wo mu cyiciro cya steel kirashobora gutangwa byoroshye kugirango wuzuze ibisabwa byihariye. Byongeye kandi, iyi miyoboro irashobora gukorwaUmuyoboro wa Hollow-Igice, kurengera imbaraga zabo mu mishinga yo kubaka.

    Usibye imbaraga zayo no guhinduranya, umuyoboro wo mu cyiciro cya 3 wo mu cyicaro gizwi cyane ku buryo buhebuje. Iyi miyoboro yoroshye kwishyiriraho kandi igasaba kubungabunga bike, kugabanya ikiguzi cyumushinga muri rusange. Byongeye kandi, ubuzima bwabo burebure hamwe no kurwanira ruswa kwemeza ko batanga inyungu zikomeye ku ishoramari ryumuboshye kandiumuyoboro wa peteroli umurongoImishinga yo kubaka.

    Umuyoboro wa Ssaw

    Ikindi nyungu zingenzi zo mu cyiciro cya 3 cyo mu cyiciro cya 3 cy'icyuma ni uguhuza nuburyo butandukanye bwo kubaka. Iyi miyoboro irashobora gushyirwaho hakoreshejwe uburyo bucukuzi bwicukuzi cyangwa tekiniki zimwose nka horizontal icyerekezo, umuyoboro wa pipa cyangwa micro-tunneling. Iri hugora ryemerera kwishyiriraho neza kandi bitanga isoko murwego rwibidukikije bitoroshye, harimo ahantu h'imijyi, inzira y'amazi n'ibidukikije.

    Muri rusange, umuyoboro wo mu cyiciro cya 3 utanga inyungu zitandukanye mubwubatsi bunyuranye bwamateka na peteroli. Imbaraga zabo, kuramba, guhinduranya no gukora neza-gukora neza kugirango ibyo bisaba gusaba. Niba ikoreshwa mubwubatsi cyangwa umuyoboro wa peteroli, iyi miyoboro itanga imikorere yizewe nigihe kinini. Nkigisubizo, bakomeje gukemura amahitamo kuba injeniyeri n'abashoramari bashaka ibisubizo birambye kandi byizewe.

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