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    Imiyoboro minini ifite umurambararo uvanze n'ibyuma bicukura imiyoboro

    Imiyoboro minini ifite umurambararo uvanze n'ibyuma, imiyoboro y'ibyuma, ishusho yagaragaye
    • Imiyoboro minini ifite umurambararo uvanze n'ibyuma bicukura imiyoboro
    • Imiyoboro minini ifite umurambararo uvanze n'ibyuma bicukura imiyoboro

    Ibisobanuro bigufi:

    Twishimiye gutangiza ibikoresho byacu bishya by'icyuma gikozwe mu cyuma, byagenewe gutanga ingirakamaro cyane ku bikorwa bitandukanye, cyane cyane cofferdams. Ibi birundo bifite imiterere igoramye cyangwa izengurutse ifatanye kugira ngo bikomere kandi birambe neza, bikinga neza kandi bikarinda amazi, ubutaka n'umucanga kwinjira.


    Ibisobanuro birambuye ku gicuruzwa

    Ibirango by'ibicuruzwa

    Imiyoboro y'ibyumazikorwa hakoreshejwe ibikoresho byiza cyane n'ikoranabuhanga rigezweho, bigatuma zizewe cyane ku mushinga uwo ari wo wose w'ubwubatsi. Izi pile zikunze gukoreshwa muri cofferdams kandi imiterere yazo ikomeye y'inyubako ishimangira umutekano n'ituze bikenewe ku rufatiro n'ibindi bikorwa remezo.

    Igisanzwe  

    Ingano y'icyuma

    		 Ibinyabutabire (%) Umutungo wo gukurura Charpy

    (Inota ya V)

    Ikizamini cy'Ingaruka
    c Mn p s Si Ibindi Imbaraga z'umusaruro

    (Mpa)

    		 Imbaraga zo Gufata

    (Mpa)

    		 （L0=5.65 √ S0）Ingano y'iminota yo guhagarara (%)
    umubare ntarengwa umubare ntarengwa umubare ntarengwa umubare ntarengwa umubare ntarengwa umunota umubare ntarengwa umunota umubare ntarengwa D ≤ 168.33mm D ＞ 168.3mm
     

     

     

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35  

     

    Kongeramo Nb\V\Ti hakurikijwe 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    

     

     

    Urashobora kongeramo kimwe mu bintu bya Nb\V\Ti cyangwa ikindi kintu icyo ari cyo cyose kivanze

    		 175   310   27  

    Kimwe cyangwa bibiri by'ibipimo by'ubukomere

    Ingufu z'ingaruka n'ahantu ho gukata bishobora guhitamo.

    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    

    Ku byuma byo mu rwego rwa B,

    Nb+V ≤ 0.03%;

    ku byuma ≥ urwego rwa B, kongeramo Nb cyangwa V cyangwa ibyabo nta bushake

    guhuza, na Nb+V+Ti ≤ 0.15%

    		 172   310    

    （L0=50.8mm）kuba

    byabazwe hakurikijwe formula ikurikira:

    e=1944·A0 .2/U0 .0

    A: Ubuso bw'icyitegererezo muri mm2 U: Imbaraga nkeya zagenwe zo gukurura muri Mpa

    		  

    Nta na kimwe cyangwa ikindi

    cyangwa byombi

    ingaruka

    ingufu na

    gukata amatungo

    agace gakenewe nk'igipimo cy'ubukomere.
    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

    Ibyacuumuyoboro munini ushongeshejwesni inkingi y'iyi miyoboro y'ibyuma, bikongera ubwizerwe n'imikorere yayo. Binyuze mu gusudira neza no kugenzura ubuziranenge, dukora ibishoboka byose kugira ngo buri muyoboro wujuje ibisabwa mu nganda. Iyi miyoboro itanga ubworoherane budasanzwe kandi iramba, bigatuma imiyoboro y'ibyuma ishobora kwihanganira imimerere mibi n'ibidukikije bikomeye.

    Nk’inganda ikomeye mu nganda, Cangzhou Spiral Steel Pipes Group Co., Ltd. ifite ibikoresho bigezweho bifite ubuso bwa metero kare zisaga 350.000. Dufite agaciro ka miliyoni 680 z’amayuani, dushora imari mu ikoranabuhanga rigezweho n’ibikoresho kugira ngo dukore umusaruro mwiza cyane. Byongeye kandi, abakozi bacu b’intangarugero 680 bagenzura ko buri gicuruzwa gikorerwa igenzura rikomeye mbere yo kugera ku bakiriya bacu b’agaciro.

    Umuyoboro wa SSAW

    Uruganda rwacu rufite umusaruro wa toni 400.000 z'imiyoboro y'ibyuma bizunguruka buri mwaka n'umusaruro wa miliyari 1.8 z'amayuani. Iki gikorwa kigaragaza ubwitange bwacu mu gutanga serivisi nziza no guhaza ibyifuzo by'abakiriya bacu b'agaciro mu gihugu no ku isi yose.

    Imiyoboro y'ibyumahamwe n'imiyoboro yacu minini ivanze itanga ubushobozi bwo gukora ibintu bitandukanye, bigatuma ikoreshwa mu buryo butandukanye. Uretse cofferdams, imiyoboro yacu ikoreshwa cyane mu kubaka ibiraro, ibikorwa remezo by'icyambu n'indi mishinga yo mu mazi. Imiterere yihariye y'iyi miyoboro ituma amazi n'ubutaka bigumana neza mu gihe bitanga imiterere ikomeye.

    Ubwitange bw'ikigo cyacu mu kugira ireme, ubuhanga mu kazi no kunyurwa n'abakiriya bituma dukomeza kunoza uburyo dukoramo no guteza imbere ibisubizo bishya. Twubahiriza amahame akomeye yo kugenzura ubuziranenge kugira ngo turebe ko ibicuruzwa byacu ari byiza cyane kandi bihuye cyangwa birenga ibyo witeze.

    Muri make,imirundo y'ibyuma bininibarimo guhindura inganda z'ubwubatsi bakoresheje imbaraga n'ubudahangarwa by'imiyoboro yacu minini ivanze. Kubera ubushobozi bwayo bwo kwihanganira imimerere igoye hamwe n'ikoreshwa ryayo ryihariye muri cofferdams, iyi miyoboro itanga uburinzi n'ubufasha bidasanzwe. Fatanya na Cangzhou Spiral Steel Pipes Group Co., Ltd. kugira ngo ubone ibicuruzwa byiza binoze imishinga yawe kandi bitange ibisubizo birambye.

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