Peipi ea tšepe e cheselitsoeng ke phala ea tšepe e seamed.Tlhahiso ea eona ke ho koba tube e se nang letho (poleiti ea tšepe le khoele ea tšepe) hore e be tube e nang le sebopeho le boholo bo hlokahalang ka likarolo tse fapaneng tsa ho etsa, ebe o sebelisa mekhoa e fapaneng ea ho cheselletsa ho cheselletsa seam hammoho.Mokhoa oa ho fumana lipeipi tsa tšepe.
Ha e bapisoa le phala ea tšepe e se nang moeli le phala e cheselitsoeng, e na le litšobotsi tsa ho nepahala ha lihlahisoa tse phahameng, haholo-holo ho nepahala ha lerako, lisebelisoa tse bonolo tse ka sehloohong, mehato e nyenyane, ts'ebetso e tsoelang pele ea tlhahiso, tlhahiso e feto-fetohang, le mefuta e mengata ea lihlahisoa tsa sehlopha.
E 'ngoe, Ts'ebetso ea tlhahiso ea phala ea tšepe ea spiral e batla e le ka tsela e latelang:
1. Thepa e tala ea spiral steel pipe ke strip steel coil, welding wire le flux.
2. Pele ho etsoa, tšepe ea marang-rang e behiloe, e fokotsoe, e hlophisitsoe, e hloekisoe holim'a metsi, e tsamaisoa le ho kobeha pele.
3. Sesebelisoa sa ho laola lekhalo la weld se sebelisoa ho etsa bonnete ba hore lekhalo la weld le finyella litlhoko tsa ho cheselletsa, 'me bophara ba phala, ho se lumellane le lekhalo la weld li laoloa ka thata.
4. Kamora ho seha liphaepheng tsa tšepe tse le 'ngoe, lipeipi tse tharo tsa pele tsa batch e' ngoe le e 'ngoe li tlameha ho kena tsamaisong e tiileng ea pele ea tlhahlobo ho lekola thepa ea mochini, sebopeho sa lik'hemik'hale, boemo ba motsoako oa li-welds, boleng ba bokaholimo ba lipeipi tsa tšepe le tlhahlobo e sa senyeheng. ho etsa bonnete ba hore mokhoa oa ho etsa lipeipi o tšoaneleha.Ka mor'a moo, e ka kenngoa ka molao tlhahiso.
Ea bobeli, seam e otlolohileng e kentsoeng ka har'a arc welded pipe:
The seam e otlolohileng submerged arc welded pipe (LSAW) ka kakaretso e sebelisa lipoleiti tsa tšepe e le lisebelisoa tse tala, 'me e etsa mekhoa e fapaneng ea ho theha liphaephe tse cheselitsoeng ka mahlakoreng a mabeli a kolobisitsoeng a arc le katoloso ea bophara ba morao-rao.
Thepa e ka sehloohong e kenyelletsa mochini oa ho roala ka bohale, mochini o kobehang pele, mochini o etsang mochini, mochini oa ho tjheseletsa pele, mochini o holisang bophara, joalo-joalo Ka nako e ts'oanang, mekhoa ea ho etsa liphaephe tsa LSAW li kenyelletsa UO (UOE), RB (RBE), JCO. (JCOE), joalo-joalo Letlapa la tšepe le hatelloa ka lekhetlo la pele hore le be le sebopeho sa U ka mokhoa oa ho theha, ebe le hatelloa ka sebopeho sa O, ebe ho etsoa welding ea ka hare le e ka ntle e qoelisoang ka metsing.Ka mor'a ho tjheseletsa, bophara (Ho Atolosoa) qetellong kapa bolelele bohle hangata ho bitsoa UOE welded pipe, 'me e se nang bophara ba katoloso e bitsoa UOE welded pipe.Bakeng sa UO welded pipe.Letlapa la tšepe le phuthoa ka sebopeho (Roll Bening), ebe ho etsoa welding ea arc e ka hare le kantle.Ka mor'a tjheseletsa, bophara e atolosoa ka RBE welded phala kapa RBE welded phala ntle le bophara katoloso.Letlapa la tšepe le thehoa ka tatellano ea mofuta oa JCO, 'me ka mor'a ho tjheseletsa, bophara bo atolosoa ka phala e entsoeng ka JCOE kapa phala e entsoeng ka JCO ntle le ho atolosa bophara.
Mokhoa oa ho etsa lipeipi tsa UOE LSAW:
Mekhoa e meraro ea mantlha ea ho etsa lipeipi tsa tšepe tsa UOE LSAW li kenyelletsa: ho kobeha poleiti ea tšepe pele, ho etsa U le ho etsa O.Ts'ebetso e 'ngoe le e' ngoe e sebelisa mochine o khethehileng oa ho etsa mochine oa khatiso ho phethela mekhoa e meraro ea pele ho kobeha bohale ba poleiti ea tšepe, U forming le O ho theha ka tatellano, le ho holofatsa poleiti ea tšepe hore e be tube e chitja.
Mokhoa oa ho etsa lipeipi tsa JCOE LSAW:
Ho theha: Ka mor'a ho hatakela ka mehato e mengata mochineng oa ho etsa JC0, halofo ea pele ea poleiti ea tšepe e hatelloa ka sebopeho sa "J", ebe halofo e 'ngoe ea tšepe e hatelloa hore e be sebopeho sa "J" ho theha. sebopeho sa C", 'me qetellong sa hatelloa ho tloha bohareng e le hore u thehe "0" sebopeho sa tube se bulehileng.
Papiso ea mekhoa ea ho bopa ea JCO le UO:
Ho theha JCO ke khatello e tsoelang pele ea ho theha, e fetolang mokhoa oa ho etsa pipe ea tšepe ho tloha mehatong e 'meli ea UO ho ea ho mehato e mengata.Nakong ea ts'ebetso ea ho theha, deformation ea tšepe ea tšepe e tšoana, khatello e setseng e nyenyane, 'me bokaholimo ha bo hlahise li-scratches.
Liphaephe tsa tšepe tse entsoeng ka tšepe li na le phetoho e kholoanyane ka boholo le boholo ba litlhaloso tsa bophara le botenya ba lerako, 'me li ka hlahisa lihlahisoa tse kholo le tse nyenyane;e ka hlahisa liphaephe tsa tšepe tse nang le bophara bo boholo ba matla a maholo, hape e ka hlahisa lipeipi tsa tšepe tse nang le bophara bo bonyenyane le tse teteaneng;haholo-holo tlhahisong ea liphaephe tse nang le marako a boima ba boemo bo phahameng, haholo-holo liphaephe tse nang le marako a teteaneng tse nyenyane le tse bohareng, tse nang le melemo e ke keng ea lekanngoa holim'a mekhoa e meng.
E ka finyella litlhoko tse ngata tsa basebelisi ho latela litlhaloso tsa lipeipi tsa tšepe.Matsete a manyane, empa katleho ea tlhahiso e tlase, 'me kakaretso ea selemo le selemo ke lithane tse 100,000 ho isa ho tse 250,000.
UO molding e thehoa ke U le O makhetlo a mabeli a khatello ea khatello.E khetholloa ke bokhoni bo boholo le tlhahiso e phahameng.Ka kakaretso, tlhahiso ea selemo le selemo e ka fihla ho lithane tse 300,000 ho isa ho tse limilione tse 1, tse loketseng tlhahiso e kholo ea tlhaloso e le 'ngoe.
3. Peipi e otlolohileng ea seam high frequency welded:
E otlolohileng seam high-frequency welded pipe (RW) ke ho futhumatsa le ho qhibilihisa bohale ba tube billet ka ho sebelisa phello ea letlalo le phello e haufi ea morao-rao ea morao-rao ka mor'a hore mochine o chesang o theohe ka mochine oa ho etsa, le khatello. welding e etsoa tlas'a ketso ea extrusion rolara ho finyella tlhahiso.
Welded steel pipe, eo hape e tsejoang e le welded pipe, ke phala ea tšepe e entsoeng ka poleiti ea tšepe kapa tšepe e hlobolisa ka mor'a ho qhekella le ho tjheseletsa.Pipe ea tšepe e cheselitsoeng e na le ts'ebetso e bonolo ea tlhahiso, katleho e phahameng ea tlhahiso, mefuta e mengata le litlhaloso, le lichelete tse fokolang tsa thepa, empa matla a eona a kakaretso a tlase ho feta a phala ea tšepe e se nang seamless.
Ho tloha lilemong tsa bo-1930, ka tsoelo-pele e potlakileng ea tlhahiso e tsoelang pele ea tšepe ea boleng bo holimo le tsoelo-pele ea theknoloji ea ho cheselletsa le ho hlahloba, boleng ba li-welds bo 'nile ba ntlafatsoa ka mokhoa o tsoelang pele,' me mefuta le litlhaloso tsa liphaephe tsa tšepe tse cheselitsoeng li eketsehile letsatsi le letsatsi. .Peipi ea tšepe ea seam.Lipeipi tsa tšepe tse cheselitsoeng li arotsoe ka liphaephe tse otlolohileng tsa seam, le liphaephe tse cheselitsoeng ka spiral ho ea ka sebopeho sa seam.
Khethollo ka mokhoa oa tlhahiso: mokhoa oa ho hlophisa - arc welded pipe, motlakase o hanyetsanang le phala e entsoeng ka motlakase, (maqhubu a phahameng, maqhubu a tlaase) phala e entsoeng ka khase, phala e entsoeng ka sebōpi.Ts'ebetso ea tlhahiso ea phala e otlolohileng ea seam welded e bonolo, katleho ea tlhahiso e phahame, litšenyehelo li tlase, 'me tsoelo-pele e potlakile.Matla a pipi e cheselitsoeng ka spiral ka kakaretso e phahame ho feta ea phala e otlolohileng ea seam, 'me phala e cheselitsoeng e nang le bophara bo boholo e ka hlahisoa ka billet e moqotetsane,' me liphaephe tse cheselitsoeng tse nang le bophara bo fapaneng li ka hlahisoa ka bophara bo tšoanang.Empa ha ho bapisoa le pipe e otlolohileng ea seam ea bolelele bo lekanang, bolelele ba weld bo eketseha ka 30 ~ 100%, 'me lebelo la tlhahiso le tlaase.
Melao ea Sehlahisoa
Lisebelisoa tse sebelisoang hangata bakeng sa liphaephe tse cheselitsoeng ke: Q235A, Q235C, Q235B, 16Mn, 20 #, Q345, L245, L290, X42, X46, X60, X80, 0Cr13, 1Cr17, 00Cr19Nir18Nir1Cr18 jj.
Likheo tse sebelisoang bakeng sa lipeipi tsa tšepe tse cheselitsoeng ke lipoleiti tsa tšepe kapa litšepe tse hlobolisang, tse arotsoeng ka liphaephe tse cheselitsoeng ka sebōpi, liphaephe tsa welding tsa motlakase (restance welding) le liphaephe tse othomathike tsa arc tse cheselitsoeng ka lebaka la ts'ebetso ea tsona e fapaneng ea tjheseletsa.Ka lebaka la mefuta ea eona e fapaneng ea tjheseletsa, e arotsoe ka mefuta e 'meli: phala e otlolohileng ea seam le phala e otlolohileng.Ka lebaka la sebopeho sa eona sa ho qetela, e arotsoe ka pipe e chitja e cheselitsoeng le phala e nang le sebōpeho se khethehileng (sekwere, sephara, joalo-joalo).Ka lebaka la lisebelisoa le ts'ebeliso ea tsona e fapaneng, liphaephe tse cheselitsoeng li arotsoe ka mefuta e latelang:
GB/T3091-2001 (peipi ea tšepe e entsoeng ka galvanized bakeng sa phetiso ea mokelikeli o tlase).Haholo-holo e sebelisoa bakeng sa ho tsamaisa metsi, khase, moea, oli le ho futhumatsa metsi a chesang kapa mouoane le maro a mang a mangata a tlase a khatello le merero e meng.Boitsebiso ba eona bo emelang ke: Q235A tšepe ea sehlopha.
GB/T14291-2006 (lipeipi tsa tšepe tse cheselitsoeng bakeng sa lipalangoang tsa mokelikeli oa morafo).E sebelisoa haholo bakeng sa liphaephe tsa tšepe tse otlolohileng tsa seam bakeng sa moea o hatelitsoeng oa morafo, drainage le khase ea ho ntša shaft.Boitsebiso ba eona bo emetseng ke tšepe ea Q235A le B grade.GB/T14980-1994 (liphaephe tsa tšepe tse nang le bophara bo boholo ba motlakase-welded bakeng sa lipalangoang tsa mokelikeli o tlaase).Haholo-holo e sebelisetsoa ho tsamaisa metsi, likhoerekhoere, khase, moea, mouoane o futhumatsang le maro a mang a khatello e tlase le merero e meng.Boitsebiso ba eona bo emetseng ke tšepe ea boleng ba Q235A.
GB/T12770-2002 (lipeipi tsa tšepe tse entsoeng ka tšepe tse sa hloekang bakeng sa meaho ea mochini).E sebelisoa haholo mechini, likoloi, libaesekele, thepa ea ka tlung, mekhabiso ea lihotele le lireschorente le likarolo tse ling tsa mochini le likarolo tsa meralo.Lisebelisoa tsa moemeli oa eona ke 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, joalo-joalo.
GB/T12771-1991 (lipeipi tsa tšepe tse entsoeng ka tšepe tse sa hloekang bakeng sa lipalangoang tsa mokelikeli).E sebelisoa haholo bakeng sa ho tsamaisa mecha ea litaba e senyang ka khatello e tlase.Lisebelisoa tsa moemeli ke 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, joalo-joalo.
Ho phaella moo, liphaephe tse cheselitsoeng tšepe e sa hloekang bakeng sa mokhabiso (GB/T 18705-2002), welded tšepe e sa jeleng liphaephe bakeng sa mokhabiso meralo (JG/T 3030-1995), bophara bophara ba motlakase tjheseletsa liphaephe tšepe bakeng sa phetiso tlaase-khatello mokelikeli (GB/ T 3091-2001), le Welded tšepe liphaephe bakeng sa ho fapanyetsana mocheso (YB4103-2000).
Theknoloji ea tlhahiso le ts'ebetso
Ts'ebetso ea tlhahiso ea phala e otlolohileng ea seam welded e bonolo, katleho ea tlhahiso e phahame, litšenyehelo li tlase, 'me tsoelo-pele e potlakile.Matla a pipi e cheselitsoeng ka spiral ka kakaretso e phahame ho feta ea phala e otlolohileng ea seam, 'me phala e cheselitsoeng e nang le bophara bo boholo e ka hlahisoa ka billet e moqotetsane,' me liphaephe tse cheselitsoeng tse nang le bophara bo fapaneng li ka hlahisoa ka bophara bo tšoanang.Empa ha ho bapisoa le pipe e otlolohileng ea seam ea bolelele bo lekanang, bolelele ba weld bo eketseha ka 30 ~ 100%, 'me lebelo la tlhahiso le tlaase.
Liphaephe tse cheselitsoeng tse nang le bophara bo boholo kapa li-diameter tse teteaneng hangata li entsoe ka li-billet tsa tšepe ka ho toba, ha liphaephe tse nyenyane tse cheselitsoeng le liphaephe tse tšesaane tse tšesaane li hloka feela ho ts'oaroa ka ho toba ka likhoele tsa tšepe.Ebe ka mor'a ho bentša ha bonolo, ho e hlatsoa holim'a eona.Ka hona, boholo ba liphaephe tse cheselitsoeng tse nang le li-diameter tse nyane li amohela welding ea seam e otlolohileng, 'me boholo ba liphaephe tse cheselitsoeng ka bophara li nka spiral welding.
Tlatsetso: Peipi e cheselitsoeng e cheselitsoe ka tšepe ea strip, kahoo boemo ba eona ha bo holimo ho feta ba phala e se nang seam.
Ts'ebetso ea phala e cheselitsoeng
Raw material decoiling-leveling-qetel cut and welding-loop-forming-welding-ho tloswa ha lifaha tse tjheseletsang ka hare le kantle-pre-calibration-induction heat-sing and straightening-eddy-current-teko-eddy-teko-teko-tlhahlobo ea khatello ea metsi-khatello ea metsi-pickling-final ho hlahloba (ts-chek-ha-law) - packing-shipping.
Nako ea poso: Jan-09-2023