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    Ipayipi Lomthungo Wekhwalithi Ephezulu

    Isithombe Esifakiwe Sepayipi Lekhwalithi Eliphezulu Elivunguzayo Elifakiwe
    • Ipayipi Lomthungo Wekhwalithi Ephezulu

    Incazelo emfushane:

    Ipayipi lethu le-spiral seam lekhwalithi ephezulu lilungele ukusetshenziswa okuhlukahlukene, okubandakanya ukwakhiwa, uwoyela negesi, kanye nezinto zokuhamba zasolwandle. Ngamandla ayo aphakeme nokuqina, yakhelwe ukumelana nengcindezi futhi imelane nokugqwala, okuyenza ibe yisixazululo esihlala isikhathi eside sezidingo zakho zamapayipi.


    Imininingwane Yomkhiqizo

    Omaka bomkhiqizo

    Sethula ipayipi lethu lekhwalithi ephezulu le-spiral-seam, umkhiqizo ohlanganisa amandla, ukuqina kanye nobunjiniyela obunembayo. Eyenziwe kusetshenziswa inqubo ethuthukisiwe yokushisela okuvunguzayo, amapayipi ethu enziwa ngamakhoyili ensimbi agoqelwe ashisayo akhiwe ngokucophelela abe umumo oyisilinda futhi ashiselwe eduze komthungo ozungezayo. Le nqubo yokukhiqiza emisha ayigcini nje ngokuthuthukisa ubuqotho besakhiwo samapayipi, kodwa futhi iqinisekisa ukuthi angakwazi ukumelana nezicelo ezidinga kakhulu.

    Enkampanini yethu, siyaziqhenya ngokuzibophezela kwethu okungantengantengi ekwanelisekeni kwamakhasimende. Ngokuhamba kweminyaka, sizakhele udumo ngokwenza kahle ngokubeka phambili izidingo zamakhasimende ethu kuzo zonke izigaba zenqubo yokuthenga. Kusukela ekubonisaneni ngaphambi kokuthengisa kuya ekusekelweni kokuthengiswayo kanye nezinsiza eziphelele zangemuva kokuthengisa, sizibophezele ekuhlangabezaneni nazo zonke izidingo zamakhasimende ethu. Le ndlela yokugxila kumakhasimende isizuze ukwethenjwa nokwethembeka kwamakhasimende ethu, ahlala elazisa ikhwalithi yemikhiqizo yethu nokuthembeka kwamasevisi ethu.

    Ikhwalithi yethu ephezuluipayipi lomthungo elivunguzayoilungele ukusetshenziswa okuhlukahlukene, okuhlanganisa ukwakhiwa, uwoyela negesi, nezokuthutha zasolwandle. Ngamandla ayo aphakeme nokuqina, yakhelwe ukumelana nengcindezi futhi imelane nokugqwala, okuyenza ibe yisixazululo esihlala isikhathi eside sezidingo zakho zamapayipi.

    Ukucaciswa Komkhiqizo

     

    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-NbVTi 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-NbVTi 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 yebanga 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 acacisiwe okubamba 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

     

    Inzuzo Yomkhiqizo

    1. Enye yezinzuzo eziyinhloko zepayipi lomthungo elivunguzayo amandla ayo amahle kakhulu. Inqubo ye-welding ye-spiral yenza i-welding eqhubekayo, ngaleyo ndlela ithuthukise ubuqotho besakhiwo sepayipi. Lokhu kubenza balungele ukuthutha uketshezi namagesi ngaphansi kwengcindezi ephezulu.

    2. Inqubo yokukhiqiza iyasebenza, ivumela amapayipi amade ukuba akhiqizwe ngaphandle kwesidingo samalungu, okungaba amaphuzu angaba namandla.

    3. Enye inzuzo ephawulekayo yeipayipi le-helical seamukuguquguquka kwayo. Zingakhiqizwa ezinhlobonhlobo zama-diameters kanye nokuqina kwezindonga zokusetshenziswa okubanzi kusuka ekuthuthweni kwamafutha negesi kuya ezinhlelweni zamanzi.

    4. Izinkampani ezikhiqiza la mapayipi zibeka phambili ukwaneliseka kwamakhasimende futhi zihlinzeka ngezinsiza eziphelele zokuthengisa ngaphambi kwesikhathi, ngesikhathi sokuthengisa, kanye nangemuva kokuthengisa. Lokhu kuzibophezela kuqinisekisa ukuthi amakhasimende athola imikhiqizo efanelana nezidingo zawo ezithile, okuthuthukisa ukuzizwisa kukonke.

    Ukushoda komkhiqizo

    1. Inqubo yokushisela okuvunguzayo ingaba yinkimbinkimbi kunezindlela zendabuko zokushisela, okungaholela ezindlekweni zokukhiqiza eziphakeme.

    2. Nakuba amapayipi omthungo okuvunguza eqinile, angase amelane kancane nezinhlobo ezithile zokugqwala kunezinye izinto zamapayipi futhi adinga ukumbozwa okuyisivikelo noma ukwelashwa.

     

    ipayipi lensimbi elivunguzayo

     

     

    FAQ

    Q1: Liyini ipayipi lomthungo elivunguzayo?

    Ipayipi lomthungo elivunguzayo lakhiwa kusetshenziswa indlela ekhethekile ebizwa ngokuthi inqubo yokushisela okuvunguzayo. Lobu buchwepheshe obusha buhlanganisa amakhoyili ensimbi agoqelwe ashisayo akhiwe abe umumo oyisilinda futhi ashikelwe ngomthungo o-spiral. Ipayipi elibangelwayo alinawo amandla aphezulu kuphela kodwa futhi lihlala liqinile kakhulu, okwenza kube kuhle ezinhlobonhlobo zezicelo, kuhlanganise nokuthuthwa kwamafutha negesi, ukuhlinzekwa kwamanzi kanye nokusekelwa kwesakhiwo.

    Q2: Kungani ukhetha ipayipi lomthungo wekhwalithi ephezulu?

    Inzuzo eyinhloko yamapayipi e-spiral seam aphezulu ukwakhiwa kwawo okuqinile. Inqubo ye-welding ye-spiral ivumela ukuthungatha okuqhubekayo, okuthuthukisa ubuqotho nokumelana nokucindezela kwepayipi. Ngaphezu kwalokho, la mapayipi angenziwa ngosayizi nobukhulu obuhlukahlukene ukuze ahlangabezane nezidingo ezithile zamaphrojekthi ahlukene.

    Q3: Yini okufanele ngiyibheke kumphakeli?

    Lapho ukhetha umphakeli wamashubhu wothungo oluvunguzayo, kubalulekile ukukhetha inkampani ebeka ukwaneliseka kwamakhasimende kuqala. Bheka umphakeli ohlinzeka ngezinsiza eziphelele zokuthengisa kwangaphambili, ukuthengisa, kanye nangemuva kokuthengisa. Inkampani enedumela elihle izoqinisekisa ukuthi imikhiqizo yayo ihlangabezana nemibandela ebekiwe futhi ingahlangabezana nezidingo zakho ezihlukile, iqinisekise ukuthi uthola imikhiqizo namasevisi asezingeni eliphezulu amakhasimende akho azowazisa.

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