Liphaephe tsa tšepe ka kakaretso li arotsoe ka liphaephe tsa tšepe tse se nang moeli le lipeipi tsa tšepe tse cheselitsoeng ho latela mokhoa oa tlhahiso. Lekhetlong lena re hlahisa liphaephe tsa tšepe tse cheselitsoeng, ke hore, liphaephe tsa tšepe tse seamed. Tlhahiso ke ho koba le ho phutha likheo tsa lipeipi (lipoleiti tsa tšepe le litšepe) likarolong tse hlokahalang tsa ho kopanya ka mekhoa e fapaneng ea ho etsa. Ha ho bapisoa le seamless tšepe phala phala tjheseletsa phala, e na le phahameng sehlahiswa ho nepahala, haholo-holo phahameng lebota botenya ho nepahala, thepa e bonolo ka sehloohong, maoto a manyenyane, Litšobotsi tsa tshebetso e tsoelang pele le tlhahiso tenyetsehang tlhahiso, phala tjheseletsa lokela ho aroloa ka mekhahlelo e meraro: spiral submerged. arc welded pipe, seam e otlolohileng ka mahlakoreng a mabeli e kenelletseng ka tlas'a metsi arc phala e otlolohileng, le seam e otlolohileng e phahameng maqhubu a hanyetsang phala e kolobisitsoeng.

1. Pipe e kolobisitsoeng ea arc e kentsoeng ka metsing

Lisebelisoa tse tala tsa phala ea tšepe ea spiral (SSAW) ke coil e hlobolang, terata ea welding le flux. Pele o etsoa, ​​​​moqhaka o etsoa ka mokhoa o leka-lekaneng, ho fokotsa moeli, ho rala moeli, ho hloekisa holim'a metsi le ho tsamaisa le ho koba pele. Sesebelisoa sa ho laola lekhalo la tjheseletsa se sebelisetsoa ho etsa bonnete ba hore lekhalo la ho tjheseletsa le kopana le litlhoko tsa ho tjheseletsa Ho hlokahala ho laola ka thata bophara ba phala, ho se lumellane le lekhalo la weld. Kamora ho seha phala e le 'ngoe ea tšepe, liphaephe tse tharo tsa pele tsa sehlopha ka seng li tlameha ho kena tsamaisong e tiileng ea pele ea tlhahlobo ho lekola thepa ea mochini, sebopeho sa lik'hemik'hale, boemo ba ho kopana le bokaholimo ba cheseletso. Ka mor'a tlhahlobo ea boleng le e sa senyeheng ho netefatsa hore mokhoa oa ho etsa liphaephe o tšoaneleha, o ka kenngoa ka molao tlhahiso.

2. Seam e otlolohileng ka tlas'a metsi arc welded pipe

Ha re bua ka kakaretso, seam se otlolohileng se kentse phala ea arc welded pipe (LSAW) e entsoe ka tšepe ea tšepe. Ka mor'a mekhoa e fapaneng ea ho theha, phala e cheselitsoeng e thehoa ka mahlakoreng a mabeli a ka tlas'a metsi a marang-rang le katoloso ea ka morao ea weld. Mokhoa oa ho theha seam se otlolohileng se ka tlas'a metsi arc welded pipe ke UO (UOE). , RB (RBE), JCO (JCOE), joalo-joalo.

Mokhoa oa ho etsa phala e otlolohileng ea UOE e kentsoeng ka metsing:

Haholo-holo ho na le mekhoa e meraro ea ho etsa ts'ebetso ea ho etsa lipeipi tsa tšepe tsa UOE LSAW: tšepe ea tšepe pele e kobeha, 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 ho kobeha pele, ho etsa U le O ho etsa moeli oa poleiti ea tšepe ka ho latellana. Lits'ebetso tse tharo, poleiti ea tšepe e holofetse hore e be tube e chitja, mochini oa JCOE o otlolohileng o kenelletse ka har'a arc welded pipe process: kamora ho hatakela makhetlo a mangata mochining oa ho etsa JC0, halofo ea pele ea poleiti ea tšepe e hatelloa ka sebopeho sa J, ebe e 'ngoe. halofo ea poleiti ea tšepe e hatelloa hore e be sebopeho sa sebopeho sa J, se etsa sebopeho sa C, se hatelloa ho tloha bohareng ho etsa "O" e bulehileng e se nang letho.

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 etsa, tšepe ea tšepe e holofetse ka mokhoa o ts'oanang, khatello e setseng e nyane, 'me bokaholimo ha bo hlajoe. Ho na le ho feto-fetoha ho hoholo hoa boholo le mefuta e hlalosang ea botenya ba lerako, e ka hlahisang lihlahisoa tse ngata tse kholo le lihlahisoa tse nyenyane, eseng feela liphaephe tsa tšepe tse nang le bophara bo boholo ba matla a maholo, empa le liphaephe tsa tšepe tse nang le bophara bo bonyenyane, lipeipi tsa tšepe tse nang le marako, haholo-holo Ha ho etsoa liphaephe tsa boleng bo phahameng tse nang le marako a teteaneng, haholo-holo tlhahiso ea liphaephe tse nang le marako a manyane le a mahareng, li na le melemo e ke keng ea bapisoa le mekhoa e meng, 'me e ka finyella litlhoko tse ngata tsa basebelisi bakeng sa litlhaloso tsa liphaephe tsa tšepe. . Ho theha UO ho amohela khatello ea U le O ho etsa habeli, e khetholloang ka E na le bokhoni bo boholo le tlhahiso e phahameng. Ka kakaretso, tlhahiso ea selemo e ka fihla ho lithane tse 300,000 ho isa ho tse 1,000,000, tse loketseng tlhahiso e kholo ea tlhaloso e le' ngoe.

3. Ho otloloha seam phahameng maqhubu khanyetso welded phala

E otlolohileng seam high-frequency welded pipe (RW) e thehoa ka ho sebelisa phello ea letlalo le phello e haufi ea maqhubu a phahameng a maqhubu a hona joale ho futhumatsa le ho qhibiliha bohale ba tube e se nang letho ka mor'a hore coil e kenngoeng ka mocheso e thehoe ka mochine oa ho etsa, 'me joale. khatello-welded tlas'a ketso ea extrusion rolara.