Pipe e nang le bophara bo boholo ba longitudinally welded ke lentsoe le akaretsang. E hlahisoa ka tšepe ea tšepe. Liphaephe tse cheselitsoeng ka lisebelisoa tsa ho cheselletsa maqhubu a phahameng li bitsoa liphaephe tse cheselitsoeng ka longitudinally. (Lebitso le fanoe hobane litšepe tsa peipi ea tšepe li le moleng o otlolohileng). Har'a bona, ho ea ka merero e fapaneng, ho na le mekhoa e fapaneng ea tlhahiso ea morao-rao. (E batla e arotsoe ka phala ea scaffolding, pipe ea mokelikeli, casing ea terata, peipi ea bracket, pipe ea tšireletso, joalo-joalo)

Ka kakaretso,lipeipi tsa tšepe tse otlolohilengka bophara ka holimo ho 325 li bitsoa liphaephe tsa tšepe tse bophara bo boholo. Ts'ebetso ea tjheseletsa ea phala e kholo ea bophara ba bophara bo botenya ba longitudinal seam steel pipe ke theknoloji ea ho tjheseletsa ea arc e nang le mahlakoreng a mabeli, le ho tjheseletsa ka letsoho ho ka boela ha etsoa ka mor'a hore phala ea tšepe e thehoe. Mokhoa oa ho hlahloba ka kakaretso ke ho lemoha liphoso. Ka mor'a hore ho sibolloe bofokoli ho tšoaneleha, e ka fanoa. Lihlahisoa tsa maemo a tlase li hloka ho ts'oaroa hape. Liphaephe tsa tšepe tsa seam tse otlolohileng tse bophara bo boholo ka bophara bo boholo ka kakaretso li loketse ho tsamaisa maro, ho tšehetsa meaho ea litšepe le ho bokella liqubu. Li sebelisoa haholo petrochemical, kaho, boenjiniere ba metsi, indasteri ea matla, nosetso ea temo, kaho ea litoropo, joalo-joalo Pipe ea tšepe e lokela ho khona ho mamella khatello ea ka hare, 'me e etse tlhahlobo ea khatello ea 2.5Mpa,' me e boloke ntle le ho lutla. motsotso o le mong. Mokhoa oa ho lemoha liphoso tsa eddy hajoale o lumelloa ho nka sebaka sa tlhahlobo ea hydraulic. Mekhoa ea ho bopa haholo-holo e kenyelletsa UOE, RBE, JCOE, joalo-joalo, eo JCOE e nang le tekanyo e phahameng ea tšebeliso. Qetello ea liphaephe e ka boela ea kenngoa ho latela litlhoko tsa bareki, e boetse e bitsoa threaded le unthreaded.

Ts'ebetso ea tlhahiso ea phala e kholo e otlolohileng ea tšepe ea seam seam:

Ts'ebetso ea tlhahiso ea liphaephe tsa tšepe tse otlolohileng tsa bophara bo boholo ka kakaretso li kenyelletsa mekhoa ea tlhahiso e kang ho bilika ho chesang, ho kolobisa ho chesang le ho lahla. Liphaephe tsa tšepe tse bophara bo boholo tse nang le marako a maholo hangata li sebelisa mekhoa ea tlhahiso ea li-arc tse nang le mahlakore a mabeli. Lihlahisoa li kobehile, li cheselitsoe, li cheselitsoe ka hare, 'me li sebetsa ka ntle. Welding, ho otlolla, hlooho e bataletseng, le lits'ebetso tse ling li fihlela litlhoko tsa litekanyetso tsa petrochemical.

Tšebeliso ea lipeipi tsa tšepe tse otlolohileng tse bophara ba bophara bo boholo e sebelisoa haholo-holo bakeng sa likarolo tse tšehetsang 'mele, joalo ka ho bokella borokho, ho tlama ka tlas'a leoatle, le ho tlamisa meaho e phahameng.

Lisebelisoa tse sebelisoang bakeng sa liphaephe tsa tšepe tse otlolohileng tse bophara bo boholo ka kakaretso ke Q345B le Q345C. Q345D e boetse e sebelisoa libakeng tse nang le mocheso o tlase. Q345E liphaephe tsa tšepe tse otlolohileng tse bophara ba bophara bo boholo li sebelisoa haholo kahong ea meaho e meholo ea tšepe.