1. Ukuqhathanisa inqubo yokukhiqiza
Inqubo yokukhiqiza yeipayipi lensimbi eliqondile lomthungoilula uma kuqhathaniswa. Izinqubo zokukhiqiza eziyinhloko ziyi-high-frequency welded seam eqondileipayipi lensimbifuthii-arc engaphansi eshiselwe ipayipi lensimbi lomthungo oqondile. Ipayipi lensimbi lomthungo eliqondile linokukhiqiza okuphezulu, izindleko eziphansi kanye nentuthuko esheshayo.
Amandla weipayipi lensimbi elivunguzayongokuvamile liphakeme kunalelo le-straight seam steel pipe. Inqubo yokukhiqiza eyinhloko i-arc welding engaphansi kwamanzi. Amashubhu ensimbi okuvunguza angakhiqiza amashubhu ahlanganisiwe anama-diameter ahlukene amabhilidi anobubanzi obufanayo, nomaamashubhu ashiselwengamadayimitha amakhulu avela kumabhilidi amancane.
Kodwa-ke, uma kuqhathaniswa namapayipi ensimbi aqondile obude obufanayo, ubude be-welding bukhuphuke ngo-30% no-100% ngokulandelana, futhi isivinini sokukhiqiza siphansi. Ngakho-ke, amapayipi ensimbi amakhulu amakhulu ashiselwe kakhulu nge-spiral welding, futhi amapayipi ensimbi amancane ububanzi ngokuvamile ashiselwe nge-seam welding eqondile.
Lapho ukhiqizaamapayipi ensimbi omthungo omkhulu anobubanzi obuqondileembonini, kusetshenziswa ubuchwepheshe bokushisela obumise okwe-T, okungukuthi, inombolo encane yamapayipi ensimbi eqondile ahlanganiswe izinqe futhi axhunywe ukuhlangabezana nobude obudingekayo bephrojekthi. Ukukhubazeka kwepayipi lensimbi eliqondile elimise okwe-T kuzokwanda kakhulu, futhi ukucindezelwa okusalayo kokushisela kokushisela okumise okwe-T kukhulu. Insimbi yokushisela ngokuvamile ingaphansi kwengcindezi ye-triaxial, okwandisa amathuba okuqhekeka.
Ngaphezu kwalokho, ngokwemithetho yezobuchwepheshe ye-arc welding engaphansi kwamanzi, i-weld ngayinye izoba ngaphansi kwe-arc striking kanye nokwelashwa kokucisha i-arc. Kodwa-ke, ipayipi ngalinye lensimbi alikwazi ukuhlangabezana nalesi simo ngesikhathi sokushisela i-seam ejikelezayo, ngakho-ke ukukhubazeka okwengeziwe kwe-welding kungase kwenzeke ngesikhathi sokucisha i-arc.
2. Ukuqhathaniswa kwemingcele yokusebenza
Lapho ipayipi ingaphansi kwengcindezi yangaphakathi, izingcindezi ezimbili eziyinhloko zivame ukukhiqizwa odongeni lwamapayipi, okungukuthi ukucindezeleka kwe-radial kanye nokucindezeleka kwe-axial. Ukucindezeleka okuphelele ekushiseleni, lapho u-α Kuyi-engeli ye-weld spiralipayipi lensimbi elivunguzayo.
Ukucindezeleka okuphelele ekushiseleleni okuvunguzayo kuwukucindezeleka okuyinhloko kwepayipi lensimbi yomthungo oqondile. Ngaphansi kwengcindezi efanayo yokusebenza, ukujiya kodonga lwamapayipi ensimbi okuvunguzayo anobubanzi bepayipi obufanayo buncane kunalolo lwamapayipi ensimbi omthungo oqondile.
Isikhathi sokuthumela: Jan-03-2023
