Pipe ea tšepe ea spiral e entsoe ka ho theola tšepe e nang le khabone e tlase kapa tšepe e nang le alloy e tlase ho phala, ho latela angle e itseng ea spiral line (e bitsoang forming angle), ebe e tjheseletsa seams tsa liphaephe.
E ka sebelisoa ho hlahisa phala e kholo ea tšepe e nang le bophara bo boholo ka tšepe e moqotetsane.
Tlhaloso ea phala ea tšepe ea spiral e hlahisoa ka bophara bo ka ntle * botenya ba lebota.
Pipe e cheselitsoeng e tla lekoa ka tlhahlobo ea hydrostatic, matla a thata le ho kobeha ho batang, ts'ebetso ea seam ea welding e tla fihlela litlhoko tsa litlhaloso.
Sepheo se seholo:
Pipe ea tšepe ea spiral e sebelisoa haholo-holo bakeng sa phetisetso ea oli le khase ea tlhaho.
Mokhoa oa tlhahiso:
(1) Lisebelisoa tse tala: khoele ea tšepe, terata ea welding le flux.Tlhahlobo e matla ea 'mele le ea lik'hemik'hale e tla etsoa pele ho tlhahiso.
(2) The butt tjheseletsa hlooho le mohatla oa khoele ho etsa hore likhoele tse peli li kopane, ebe li nka terata e le 'ngoe kapa lithapo tse peli tse ka tlas'a metsi,' me ho tjheseletsa ka metsi ho amohetsoe bakeng sa ho tjheseletsa ka mor'a ho pitika ka phala ea tšepe.
(3) Pele ho etsoa, tšepe ea strip e tla lekanngoa, e fokotsoe, e hlophisitsoe, e hloekisoe holim'a metsi, e tsamaee le ho kobeha pele.
(4) Tekanyo ea khatello ea khatello ea motlakase e sebelisoa ho laola khatello ea moqomo oa oli o hatellang mahlakoreng ka bobeli a sepalangoang ho netefatsa ho tsamaisoa ha tšepe ea strip hantle.
(5) Bakeng sa ho etsa moqolo, sebelisa taolo ea kantle kapa taolo ea kahare.
(6) Sebelisa sesebelisoa sa ho laola lekhalo la weld ho etsa bonnete ba hore lekhalo la weld le finyella litlhoko tsa ho tjheseletsa, joale bophara ba phala, ho se lumellane le lekhalo la weld li ka laoloa ka thata.
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(8) Li-welding seams tsohle li hlahlojoa ke mochine o tsoelang pele oa ultrasonic othomathike oa marang-rang ho netefatsa tlhahlobo ea 100% ea NDT e koahelang likarolo tsohle tsa spiral welding.Haeba ho na le mefokolo, e tla lla le ho fafatsa matšoao ka bo eona, 'me basebetsi ba tlhahiso ba tla fetola mekhoa ea ts'ebetso ka nako efe kapa efe ho felisa liphoso ka nako.
(9) Pipe ea tšepe e khaotsoe ka karolo e le 'ngoe ka mochine oa ho itšeha.
(10) Kamora ho seha ka phala e le 'ngoe ea tšepe, karolo e' ngoe le e 'ngoe ea phala ea tšepe e tla ba tlas'a tsamaiso e tiileng ea pele ea tlhahlobo ho hlahloba thepa ea mochine, sebopeho sa lik'hemik'hale, boemo ba fusion, boleng ba holim'a phala ea tšepe le NDT ho netefatsa hore mokhoa oa ho etsa liphaephe. e tšoaneleha pele e ka kenngoa ka molao tlhahisong.
(11) Likarolo tse nang le matšoao a tsoelang pele a ho lemoha liphoso tsa acoustic holim'a seam sa welding li tla hlahlojoa hape ka ultrasonic manual le X-ray.Haeba ho e-na le mefokolo, ka mor'a ho lokisoa, phala e tla boela e be tlas'a NDT ho fihlela ho netefatsoa hore mefokolo e felisitsoe.
(12) Phaephe ea seam ea tjheseletsa ea butt le seam ea tjheseletsa ea T-joint intersecting intersecting spiral seam e tla hlahlojoa ka thelevishene ea X-ray kapa tlhahlobo ea filimi.
(13) Pipe e 'ngoe le e' ngoe ea tšepe e tlas'a teko ea hydrostatic.Khatello ea teko le nako li laoloa ka thata ke mochine oa ho lemoha k'homphieutha oa khatello ea metsi ea pipe ea tšepe.Litekanyetso tsa liteko li hatisoa le ho rekotoa ka bo eona.
(14) Qetello ea phala e entsoe ka mokhoa o nepahetseng ho laola perpendicularity, angle ea bevel le sefahleho sa motso.
Nako ea poso: Jul-13-2022