Lipeipi tse cheselitsoeng ka tšepe ea carbon li arotsoe haholo-holo ka mekhoa e meraro: tjheseletsa ea motlakase (ERW), spiral submerged arc welding (SSAW) le seam e otlolohileng ea arc welding (LSAW).Liphaephe tse entsoeng ka carbon steel welded tse hlahisoang ke mekhoa ena e meraro li na le boemo ba tsona tšimong ea kopo ka lebaka la lisebelisoa tsa bona tse sa tšoaneng tse tala, mekhoa ea ho etsa mekhoa, boholo ba caliber le boleng.

1. Peipi e otlolohileng ea seam electric resistance welded pipe (ERW)

Motlakase ho hanyetsa welded pipe ke mofuta oa pele oa phala ea tšepe e hlahisoang naheng ea heso, e nang le mefuta e mengata ka ho fetisisa ea likopo, palo e kholo ka ho fetisisa ea lihlopha tsa tlhahiso (ho feta 2,000), le tlhahiso e phahameng ka ho fetisisa (e ikarabellang bakeng sa hoo e ka bang 80% ea kakaretso ea bokhoni ba tlhahiso. tsa lipeipi tse cheselitsoeng).Tlhaloso ea sehlahisoa ke Ф20 ~ 610mm.e phethile karolo ea bohlokoa.Ho tloha lilemong tsa bo-1980, lihlopha tse ka bang 30 tsa ERW219-610mm li tlisitsoe kantle ho naha.Kamora lilemo tsa boikoetliso ba tlhahiso, boemo ba theknoloji ea lisebelisoa bo hatetse pele haholo, 'me boleng ba sehlahisoa le bona bo ntse bo ntlafala kamehla.Ka lebaka la matsete a eona a tlase, phello e potlakileng le mefuta e mengata ea lisebelisoa, e tsoetse pele ka potlako.Ka nts'etsopele ea ts'ebetso ea tlhahiso ea poleiti ea CSP, e fana ka thepa e tala e theko e tlase, e tšepahalang, 'me e theha maemo a matle bakeng sa nts'etsopele ea eona e tsoelang pele nakong e tlang.Karolo ena ea lihlahisoa e 'nile ea ntlafatsoa ho tloha tšimong ea lipalangoang tsa mokelikeli le sebopeho ho ea ho phala ea seliba sa oli le pipe ea mohala tšimong ea kopo ea phala e se nang moeli.

2. Spiral submerged arc welded pipe (SSAW)

Thepa ea thepa matsete a spiral submerged arc welded pipe e fokotsehile, hobane tshebediso ya theko e tlase e moqotetsane hlobolisa (poleiti) coil continuous welding ho hlahisa phala e kholo-bophara (Ф1016 ~ 3200mm) welded pipe, mokhoa oa tlhahiso o bonolo, litšenyehelo tsa ho sebetsa ke e tlase, 'me e na le molemo oa ts'ebetso e theko e tlase.naha ea heso phetiso ea oli le khase spiral welded pipe e thehile sebopeho sa motheo haholo-holo se thehiloeng fekthering ea lipeipi tsa tšepe e amanang le tsamaiso ea peterole.Ho amohela mahlale a tsoetseng pele joalo ka ho theha khatello e tlase ea masala le katoloso ea mochini oa liphaephe, boleng ba phala e tsoetsoeng ka spiral e bileng taolong e tiileng ea boleng bo bapisoa le phala e otlolohileng ea seam e cheselitsoeng.Ke mofuta oa liphaephe tse kholo tse sebelisoang mererong ea naha ea heso ea libaka tse telele tsa lipeipi tsa oli le khase.Bokhoni ba eona ba tlhahiso bo khonne ho khahlametsa litlhoko tsa khaho ea lipeipi tsa oli le khase libakeng tse telele tsa naha ea heso, ’me li rometsoe ka bongata linaheng tse ling.

3. Seam e otlolohileng ka tlas'a metsi arc welded pipe (LSAW)

Longitudinal submerged arc welding ke theknoloji e tsoetseng pele ea ho etsa liphaephe e ntlafalitsoeng morao tjena naheng ea heso, 'me theknoloji ea UOE e ne e sebelisoa haholo nakong e fetileng.Lilemong tsa morao tjena, JCOE e ntseng e tsoela pele butle-butle e fetohile theknoloji e ncha e tloaelehileng naheng ea heso le lefats'e.Longitudinal submerged arc welded liphaephe ke tsa boleng bo ka tšeptjoang 'me li sebelisoa haholo mehalang ea kutu ea lipalangoang tsa oli le khase.Ka lebaka la matsete a batlang a le mangata a yuniti ena ea liphaephe tse cheselitsoeng, lisebelisoa tse tala tse sebelisoang ke lipoleiti tse pharaletseng le tse teteaneng tse nang le litšenyehelo tse phahameng, mokhoa ona o rarahane, katleho ea tlhahiso e tlaase, 'me theko ea lihlahisoa e phahame.