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    Ipayipi Lensimbi Elivunguza Ngensimbi Yamapayipi Amanzi Angaphansi Komhlaba

    Ipayipi Lensimbi Elivunguza Ngensimbi Yamapayipi Amanzi Angaphansi Komhlaba Isithombe Esifakiwe
    • Ipayipi Lensimbi Elivunguza Ngensimbi Yamapayipi Amanzi Angaphansi Komhlaba

    Incazelo emfushane:

    Sikwethulelaipayipi lomthungo elivunguzayo amapayipi amanzi angaphansi komhlaba.Ingqalasizinda yalokhu kuqanjwa kabusha iyipayipi lomthungo elivunguzayo, elishiselwe ngobungcweti lisebenzisa ubuchwepheshe bokushisela amapayipi ensimbi obusezingeni eliphezulu emakethe.


    Imininingwane Yomkhiqizo

    Omaka bomkhiqizo

    Iipayipi lamanzi angaphansi komhlabaiyipayipi lensimbi elivunguzayo elenziwe ngenqubo yokushisela ye-arc enezintambo ezimbili ezizenzakalelayo enezinhlangothi ezimbili.Ipayipi lenziwe ngamakhoyili ensimbi ye-strip futhi likhishwa ngezinga lokushisa elingaguquki ukuze kuqinisekiswe ukuqina kwalo nokuphila isikhathi eside.

    Izakhiwo Eziyinhloko Zomzimba Nezamakhemikhali Zamapayipi Ensimbi (GB/T3091-2008, GB/T9711-2011 kanye ne-API Spec 5L)

    		        

    Okujwayelekile

    Ibanga Lensimbi

    Amakhemikhali (%)

    I-Tensile Property

    Ukuhlolwa Komphumela we-Charpy(V notch)
    c Mn p s Si

    Okunye

    I-Yield Strength (Mpa)

    Amandla Okuqina (Mpa)

    (L0=5.65 √ S0 (iminithi Lokukala Lokunwebeka) (%)
    ubuningi ubuningi ubuningi ubuningi ubuningi imiz ubuningi imiz ubuningi D ≤ 168.33mm D ＞ 168.3mm

    I-GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35

    Ingeza i-Nb\V\Ti ngokuvumelana 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

    I-GB/T9711-2011 (PSL1)

    		 L175 0.21 0.60 0.030 0.030  

    Uma ukhetha ukungeza enye yezinto ze-Nb\V\Ti nanoma iyiphi inhlanganisela yazo

    		 175   310  

    27

    Inkomba eyodwa noma ezimbili zokuqina kwamandla kanye nendawo yokugunda ingase ikhethwe.Nge-L555, bona indinganiso.
    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  

    Okwensimbi yezinga B,Nb+V ≤ 0.03%;yensimbi ≥ grade B,ongakukhetha ukungeza i-Nb noma i-V noma inhlanganisela yakho, kanye ne-Nb+V+Ti ≤ 0.15%

    		 172   310  

    (L0=50.8mm) kufanele ibalwe ngokuvumelana nefomula elandelayo:e=1944·A0 .2/U0 .0 A:Indawo yesampula ku-mm2 U: Amandla amancane okubamba acacisiwe ku-Mpa

    Awekho noma amanye noma womabili amandla okuthinta nendawo yokugunda edingekayo njengombandela 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

    Ukwakhiwa okuhlanganisiwe kwepayipi kuqinisekisa ukuthi liqine kakhulu futhi alikwazi ukumelana nokucindezela, okulenza libe ukukhetha okuhle ezinhlelweni zamanzi angaphansi komhlaba.

    Ngaphandle kwamandla nokuqina, amapayipi amanzi angaphansi komhlaba aklanyelwe ukufakwa kalula.Ukwakhiwa kwe-Spiral seam kuyavumelana nezimo futhi kuyavumelana nezimo, okuvumela ukuhamba kalula nokuma endaweni eyinselele kakhulu.Lokhu kusho ukuthi ungabeka amapayipi ngokushesha nangempumelelo, wonge isikhathi nezindleko zabasebenzi.

    Ngaphezu kwalokho, ukusetshenziswa kwezinto ezisezingeni eliphezulu kanye nobuchwepheshe bokushisela obuphambili buqinisekisa ukuthi amapayipi amanzi angaphansi komhlaba amelana kakhulu nokugqwala nokugqwala.Lokhu kusho ukuthi izogcina ubuqotho nokusebenza kwayo iminyaka, ngisho nasezimeni ezinzima zangaphansi komhlaba.

    Izinqubo zokushisela amapayipi
    Ipayipi elifakwe nge-polyurethane

    Amapayipi ethu amanzi angaphansi komhlaba atholakala ngobukhulu obuhlukahlukene ukuze ahlangabezane nezidingo ezithile zephrojekthi yakho.Kungakhathaliseki ukuthi ubeka amanzi amancane asekhaya noma uhlelo olukhulu lwezimboni, sinepayipi eliphelele kuwe.Ithimba lethu lochwepheshe lingakunikeza ngezeluleko ezihambisanayo kanye nokwesekwa ukuze likusize ukhethe amapayipi afaneleka kangcono izidingo zakho.

    Uma kuziwa ezinhlelweni zamanzi angaphansi komhlaba, udinga ipayipi ongalethemba.Ngokwakhiwa okuhlangene okuvunguzayo okuthuthukisiwe, izinto zekhwalithi kanye nokushisela ochwepheshe, amapayipi ethu amanzi angaphansi komhlaba alungele noma iyiphi inethiwekhi yokuphakelwa kwamanzi.Ihlala isikhathi eside, ithembekile futhi kulula ukuyifaka, leli payipi lizomelana nesikhathi, likunikeze ukuthula kwengqondo nokusebenza okuphakeme.

    Sekukonke, amapayipi omthungo avunguzayo ayisinqumo esihle kunoma ubani odinga isisombululo sokusabalalisa amanzi esisezingeni eliphezulu, esithembekile, nesiqinile.Ngokwakhiwa kwayo kwe-spiral seam ethuthukisiwe kanye nochwephesheukushisela ipayipi lensimbi, ipayipi inikeza amandla angenakuqhathaniswa, ukuguquguquka nokumelana nokugqwala.Ungalibali ikhwalithi yohlelo lwakho lwamanzi angaphansi komhlaba – khetha amapayipi amanzi angaphansi komhlaba njengesixazululo ongalethemba.

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