Peipi ea tšepe e cheselitsoeng e bolela phala ea tšepe e nang le meruko holim'a metsi e entsoeng ka likhoele tse kobehang kapa lipoleiti tsa tšepe hore e be libōpeho tse chitja, tse lisekoere le tse ling ebe li li tjheseletsa. Billet e sebelisetsoang liphaephe tsa tšepe tse cheselitsoeng ke poleiti ea tšepe kapa tšepe ea hlobolisa. Ho tloha lilemong tsa bo-1930, ka tsoelo-pele e potlakileng ea tlhahiso ea boleng bo phahameng ba tšepe e tsoelang pele le tsoelo-pele ea theknoloji ea ho tjheseletsa le ho hlahloba, boleng ba li-welds bo 'nile ba ntlafatsoa ka mokhoa o tsoelang pele, mefuta e fapaneng le litlhaloso tsa liphaephe tsa tšepe tse entsoeng ka tšepe li eketsehile,' me li nkile sebaka. lipeipi tsa tšepe tse se nang moroalo masimong a mangata le ho feta. Lipeipi tsa tšepe tse cheselitsoeng li na le litšenyehelo tse tlase le katleho e phahameng ea tlhahiso ho feta liphaephe tsa tšepe tse se nang moeli.

Liphaephe tsa tšepe li arotsoe ka liphaephe tse se nang moroallo le tse cheselitsoeng. Lipeipi tse cheselitsoeng li arotsoe ka liphaephe tsa tšepe tse otlolohileng tsa seam le lipeipi tsa tšepe tse spiral. Liphaephe tse otlolohileng tsa seam li arotsoe ka phala ea tšepe ea ERW (chesello e phahameng ea maqhubu) le phala ea tšepe ea LSAW (seam e otlolohileng e kenngoeng ka har'a arc welding). Ts'ebetso ea tjheseletsa ea liphaephe tsa spiral hape ke phapang pakeng tsa ho tjheseletsa arc ka tlas'a metsi (phala ea tšepe ea SSAW bakeng sa nako e khutšoanyane) le phala ea tšepe ea LSAW ka mokhoa oa li-welds, 'me phapang le ERW ke phapang ea ts'ebetso ea ho tjheseletsa. Submerged arc welding (SAW iron pipe) e hloka ho eketsoa ha seaplane (welding terata, flux), empa ERW ha e e hloke. ERW e qhibilihisoa ke ho futhumatsa maqhubu a mahareng. Liphaephe tsa tšepe li ka aroloa ka mekhahlelo e 'meli ho latela mokhoa oa tlhahiso: liphaephe tsa tšepe tse se nang moeli le lipeipi tsa tšepe tse cheselitsoeng. Liphaephe tsa tšepe tse se nang moroallo li ka aroloa ka liphaephe tse se nang moroallo tse chesang, lipeipi tse huloang ke serame, lipeipi tsa tšepe tse nepahetseng hantle, liphaephe tse atolositsoeng ka mocheso o chesang, liphaephe tse ohliloeng ka serame le liphaephe tse pharalletseng ho latela mokhoa oa tlhahiso. Liphaephe tsa tšepe tse sa tsitsang li entsoe ka tšepe ea boleng bo phahameng ba carbon kapa alloy steel 'me li arotsoe ka ho chesa le ho kolobisoa ka serame (ho huloa).

Ts'ebetso ea tlhahiso ea liphaephe tse otlolohileng tsa seam welded e bonolo, e nang le ts'ebetso e phahameng ea tlhahiso, theko e tlase, le nts'etsopele e potlakileng. Matla a lipeipi tse cheselitsoeng ka spiral hangata a phahame ho feta a liphaephe tse otlolohileng tsa seam. Li-billet tse tšesaane li ka sebelisoa ho hlahisa liphaephe tse cheselitsoeng tse nang le li-diameter tse kholoanyane, 'me li-billet tsa bophara bo lekanang le tsona li ka sebelisoa ho hlahisa liphaephe tse cheselitsoeng tse nang le bophara bo fapaneng. Leha ho le joalo, ha ho bapisoa le liphaephe tsa seam tse otlolohileng tsa bolelele bo lekanang, bolelele ba weld bo eketseha ka 30 ~ 100%, 'me lebelo la tlhahiso le tlaase. Ka hona, liphaephe tse cheselitsoeng ka bophara bo nyane hangata li chesetsoa ka ho otloloha ha seam, ha liphaephe tse cheselitsoeng ka bophara bo boholo hangata li chesetsoa ka li-spiral welding.