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    Iipayipi Ezinkulu Ezidityanisiweyo Ezinobubanzi Obukhulu Iinqwaba Zeetyhubhu Zentsimbi

    Iipayipi Ezinkulu Ezidityanisiweyo Ezinobubanzi Obukhulu Iinqwaba Zeetyhubhu Zentsimbi Umfanekiso Obonakalayo
    • Iipayipi Ezinkulu Ezidityanisiweyo Ezinobubanzi Obukhulu Iinqwaba Zeetyhubhu Zentsimbi
    • Iipayipi Ezinkulu Ezidityanisiweyo Ezinobubanzi Obukhulu Iinqwaba Zeetyhubhu Zentsimbi

    Inkcazo emfutshane:

    Siyavuya ukuqalisa imveliso yethu entsha yeengqumba zentsimbi, ezenzelwe ukubonelela ngokusebenziseka okuhle kakhulu kwiintlobo ngeentlobo zezicelo, ingakumbi ii-cofferdams. Ezi ngqumba zinoyilo olugobileyo okanye olujikelezayo oluhambelanayo ukuze lube namandla angenakuthelekiswa nanto kwaye luhlale ixesha elide, oluvala kwaye luthintele ukungena kwamanzi, umhlaba kunye nesanti.


    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    Iipayipu zentsimbiZenziwa kusetyenziswa izixhobo ezikumgangatho ophezulu kunye nobuchwepheshe obuphambili, nto leyo ezenza zithembeke kakhulu kuyo nayiphi na iprojekthi yokwakha. Ezi nqwaba zisetyenziswa rhoqo kwi-cofferdams kwaye uyilo lwazo oluqinileyo lwesakhiwo luqinisekisa ukhuseleko kunye nozinzo olufunekayo kwiziseko kunye neminye imisebenzi yeziseko.

    Umgangatho  

    Ibanga lentsimbi

    		 Izinto ezisetyenziswa kwiikhemikhali (%) Ipropati yokuThatha Charpy

    (Inotshi ye-V)

    Uvavanyo lweMpembelelo
    c Mn p s Si Okunye Unikeze Amandla

    (Mpa)

    		 Tensile strength

    (Mpa)

    		 （L0=5.65 √ S0）Isantya sokuNciphisa umzuzu （%）
    ubuninzi ubuninzi ubuninzi ubuninzi ubuninzi umzuzu ubuninzi umzuzu ubuninzi U-D ≤ 168.33mm U-D ＞ 168.3mm
     

     

     

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35  

     

    Ukongeza i-Nb\V\Ti ngokuhambelana 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    

     

     

    Ukukhetha ukongeza enye yezinto ze-Nb\V\Ti okanye nayiphi na indibaniselwano yazo

    		 175   310   27  

    Inye okanye ezimbini ze-toughness index

    amandla empembelelo kunye nendawo yokucheba ingakhethwa.

    L555, jonga umgangatho.
    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    

    Kwintsimbi yebanga B,

    I-Nb+V ≤ 0.03%;

    ngentsimbi ≥ grade B, ukongeza i-Nb okanye i-V okanye eyabo

    indibaniselwano, kunye ne-Nb+V+Ti ≤ 0.15%

    		 172   310    

    （L0=50.8mm）ukuba

    ibalwe ngokwefomula elandelayo:

    e=1944·A0 .2/U0 .0

    A: Indawo yesampulu kwi-mm2 U: Amandla amancinci okutsalwa kwe-tensile kwi-MPa

    		  

    Akukho nto okanye nayiphi na

    okanye zombini

    impembelelo

    amandla kunye

    ukucheba

    indawo iyimfuneko njengomlinganiselo wokuqina.
    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

    Zethuumbhobho odibeneyo onobubanzi obukhuluszingumqolo wezi mfumba zemibhobho yentsimbi, nto leyo ephucula ukuthembeka nokusebenza kwazo. Ngokusebenzisa iinkqubo zokuwelda ezicokisekileyo kunye nokulawula umgangatho, siqinisekisa ukuba imfumba nganye ihlangabezana nemigangatho ephezulu yoshishino. Ezi mfumba zibonelela ngokuguquguquka okumangalisayo kunye nokuqina, zivumela iimfumba zemibhobho yentsimbi ukuba zimelane neemeko ezinzima kunye neemeko ezinzima.

    Njengomvelisi okhokelayo kushishino, iCangzhou Spiral Steel Pipes Group Co., Ltd. inezixhobo zanamhlanje ezigubungela indawo engaphezulu kweemitha zesikwere ezingama-350,000. Ngexabiso lempahla elifikelela kwi-680 yezigidi zeeyuan, sityala imali kubuchwepheshe obuphambili kunye nezixhobo ukuqinisekisa imveliso esemgangathweni ophezulu. Ngaphezu koko, abasebenzi bethu abazinikeleyo abangama-680 baqinisekisa ukuba yonke imveliso ihlolwa ngokungqongqo ngaphambi kokuba ifikelele ezandleni zabathengi bethu abaxabisekileyo.

    Umbhobho we-SSAW

    Umzi-mveliso wethu uvelisa iitoni ezingama-400,000 zeepayipi zentsimbi ezijikelezayo ngonyaka kwaye ixabiso lemveliso liyi-1.8 yeebhiliyoni zeeyuan. Eli nqanaba libonisa ukuzinikela kwethu ekunikezeni inkonzo egqwesileyo kunye nokuhlangabezana neemfuno zabathengi bethu abaxabisekileyo ekuhlaleni nakwihlabathi liphela.

    Iipayipu zentsimbiIipayipi zethu ezidityanisiweyo ezinobubanzi obukhulu zibonelela ngokuguquguquka okugqwesileyo, nto leyo ezenza zifaneleke kwiintlobo ngeentlobo zezicelo. Ukongeza kwi-cofferdams, iipile zethu zisetyenziswa kakhulu ekwakhiweni kweebhulorho, kwiziseko zophuhliso lwezibuko nakwezinye iiprojekthi zaselwandle. Uyilo olukhethekileyo olugobileyo okanye olujikelezileyo lwezi pile luqinisekisa ukugcinwa kwamanzi nomhlaba ngokufanelekileyo ngelixa lubonelela ngesakhelo esomeleleyo sesakhiwo.

    Ukuzinikela kwenkampani yethu kumgangatho, ubungcali kunye nokwaneliseka kwabathengi kusishukumisela ukuba siqhubeke nokuphucula iinkqubo zethu zokuvelisa kunye nokuphuhlisa izisombululo ezintsha. Silandela imigangatho engqongqo yokulawula umgangatho ukuqinisekisa ukuba iimveliso zethu zikumgangatho ophezulu kwaye ziyahlangabezana okanye zidlula ulindelo lwakho.

    Isishwankathelo,iinqwaba zentsimbi eziziityhubhubaguqula ishishini lokwakha ngamandla nokuqina kombhobho wethu omkhulu odityanisiweyo. Ngenxa yokukwazi kwawo ukumelana neemeko ezinzima kunye nokusetyenziswa kwawo okukhethekileyo kwi-cofferdams, ezi pile zibonelela ngokhuseleko kunye nenkxaso engenakuthelekiswa nanto. Sebenzisana neCangzhou Spiral Steel Pipes Group Co., Ltd. ukuze ufumane iimveliso ezikumgangatho ophezulu eziphucula iiprojekthi zakho kwaye zibonelele ngezisombululo ezihlala ixesha elide.

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