Amapayipi ensimbi ashiselwe ku-Spiral wonke asebenzisa inqubo yokushisela engaphansi kwamanzi, amapayipi ensimbi ashiselwe ngomthungo oqondile anamapayipi ensimbi ashiselwe i-arc aqondile e-UOE emfushane, kanye nokushisela okuqondile komthungo we-high-frequency ukumelana kwe-ERW emfushane.
Uma kuqhathaniswa ne-arc welding engaphansi kwamanzi, ipayipi lensimbi elishiselwe ukumelana ne-high-frequency (ERW steel pipe) alifaki noma yiziphi izinto zokushisela ngesikhathi senqubo yokushisela.Ngakho-ke, i-weld eyakhiwe ihambisana ngokuphelele nokwakheka kwamakhemikhali ensimbi eyisisekelo.Ngemva kokuba ipayipi lensimbi lishiselwe, liyathunjwa ukuze lenze ukucindezeleka kwangaphakathi kokusebenza okubandayo, futhi ukucindezeleka kwangaphakathi kwe-welding kuyathuthukiswa, ngakho izici ezibanzi zemishini yepayipi lensimbi ye-ERW zingcono.Kodwa okwamanje, abakhiqizi abamelwe yi-Shanghai Ellison kanye ne-Guangdong Panyu Zhujiang Steel Pipe Factory bakhiqiza kuphela amapayipi angaphansi kuka-φ355mm, futhi amapayipi egesi anobubanzi obukhulu awakwazi ukukhethwa.Ukushisela i-arc engaphansi kwe-longitudinal (ipayipi lensimbi le-UOE) lisebenzisa inqubo yokunweba ebandayo yangemva kokushisela ukuze kunwetshwe ipayipi, ukuze usayizi wejiyomethri wepayipi lensimbi le-UOE linembe uma kuqhathaniswa, kanye nekhwalithi yozakwabo lapho ipayipi lensimbi le-UOE lixhunywe lihle. ukuqinisekisa ikhwalithi yokushisela.Ingxenye yokucindezeleka kwangaphakathi iyaqedwa.Ngaphezu kwalokho, i-multi-wire welding (izintambo ezintathu, izintambo ezine) isetshenziselwa i-UOE steel pipe welding.Le nqubo yokushisela ikhiqiza amandla olayini amancane ngesikhathi sokushisela futhi inethonya elincane endaweni ethinteke ukushisa yensimbi eyisisekelo.I-post-pass welding wire ye-multi-wire welding ingadlala indima ekuqedeni ukucindezeleka okukhiqizwa ngesikhathi sokushisela ku-wire welding yangaphambilini, ngaleyo ndlela ithuthukise izakhiwo zemishini yepayipi yensimbi.
Uma kuqhathaniswa nepayipi elishiselwe okuvunguza, ubude bomthungo we-weld womthungo oqondile ongaphansi kwe-arc oshiselwe ipayipi lensimbi bufushane, ngakho-ke amaphutha namathonya okushisela mancane kakhulu.Ephayiphini elinomfutho ophezulu, isisekelo sensimbi yepayipi lomthungo oqondile singafinyelela ku-100% ukubonwa kwamapuleti ensimbi ngalinye ngalinye, lihlangabezane nezimfuneko zepayipi elinomfutho ophezulu wensimbi eyisisekelo.Nokho, nakuba ukusebenza okuphelele kwepayipi lensimbi le-UOE kungcono kunamanye amapayipi ensimbi, intengo yawo ephezulu yenza abasebenzisi abangenayo imali badikibale.Ama-welds wepayipi lensimbi elivunguzayo asabalaliswa ngendlela ezungezayo.Ngokuvamile, indawo yokushisela yepayipi lensimbi, kuhlanganise nendawo ethinteke ukushisa ye-weld, ingxenye enezakhiwo ezimbi zemishini yepayipi lensimbi, kuyilapho ukucindezeleka okukhulu kwangaphakathi kwepayipi lokucindezela kusakazwa eduze kwesiqondiso se-axial, futhi the spiral welded pipe will Izingxenye ezibuthakathaka zigwema ukuqondiswa kokucindezeleka okukhulu kwangaphakathi, ngaleyo ndlela zithuthukise ukusebenza kwepayipi lensimbi.Ngaphezu kwalokho, ngenxa yokwakhiwa kwe-welding seam yepayipi lensimbi elivunguzayo kanye nokuphakama kwe-welding seam, kunzima kakhulu ukwenza i-anti-corrosion yangaphandle, futhi kungase kube negebe phakathi kwama-welding seams amabili.Ubuchwepheshe bungaxazulula i-anti-corrosion yepayipi lensimbi elivunguzayo.
Isikhathi sokuthumela: Nov-02-2022