Ho na le mekhoa e meraro ea mantlha ea ho khetholla liphaephe tse cheselitsoeng le lipeipi tse se nang moroallo (smls):

1. Mokhoa oa Metallographic

Mokhoa oa Metallographic ke e 'ngoe ea mekhoa e ka sehloohong ea ho khetholla liphaephe tse cheselitsoeng le liphaephe tse se nang moeli.Pipe e entsoeng ka maqhubu a phahameng a maqhubu (RW) ha e kenye lisebelisoa tsa ho tjheseletsa, kahoo seam se cheselletsang phala ea tšepe e tšesaane haholo, 'me seam sa weld ha se bonahale ka ho hlaka haeba mokhoa oa ho sila le ho senya o sebelisoa.Hang ha phala ea tšepe e nang le maqhubu a phahameng e cheselitsoe ntle le kalafo ea mocheso, sebopeho sa seam sa weld se tla fapana haholo le thepa ea motsoali ea phala ea tšepe.Ka nako ena, mokhoa oa metallographic o ka sebelisoa ho khetholla phala ea tšepe e cheselitsoeng ho phala ea tšepe e se nang moeli.Nakong ea ho khetholla liphaephe tse peli tsa tšepe, ho hlokahala ho khaola sampuli e nyenyane ka bolelele le bophara ba limilimithara tse 40 sebakeng sa welding, ho tsamaisa ho sila ka thata, ho sila hantle le ho belisoa holim'a eona, ebe u hlokomela sebopeho tlas'a metallographic. microscope.Liphaephe tsa tšepe tse cheselitsoeng le lipeipi tsa tšepe tse se nang moeli li ka khetholloa ka nepo ha ferrite le widmansite, tšepe ea motheo le li-weld zone microstructures li hlokomeloa.

2. Mokhoa oa ho senya

Ts'ebetsong ea ho sebelisa mokhoa oa kutu ho tsebahatsa liphaephe tse cheselitsoeng le liphaephe tse se nang seam, seam se cheselitsoeng sa phala ea tšepe e entsoeng ka tšepe e lokela ho belisoa.Ka mor'a hore ho sila ho phethoe, litsela tsa ho sila li lokela ho bonahala, 'me joale sefahleho sa ho qetela sa seam se cheselitsoeng se lokela ho hloekisoa ka sandpaper.'Me u sebelise 5% nitric acid alcohol alcohol solution ho phekola sefahleho sa ho qetela.Haeba ho na le weld e totobetseng, e ka paka hore phala ea tšepe ke phala ea tšepe e cheselitsoeng.Leha ho le joalo, sefahleho sa ho qetela sa phala ea tšepe e se nang moeli ha se na phapang e totobetseng ka mor'a ho senyeha.

Thepa ea phala e cheselitsoeng
Pipe ea tšepe e cheselitsoeng e na le thepa e latelang ka lebaka la ho cheselletsa hangata, ho roala ha serame le lits'ebetso tse ling.
Ntlha ea pele, mosebetsi oa ho boloka mocheso o molemo.Tahlehelo ea mocheso ea liphaephe tsa tšepe tse cheselitsoeng e batla e le nyane, ke 25% feela, e sa thuseng feela lipalangoang, empa hape e fokotsa litšenyehelo.
Ea bobeli, e na le ho thibela metsi le ho senya.Ts'ebetsong ea kaho ea boenjiniere, ha ho hlokahale ho theha liforo tsa liphaephe ka thoko.
E ka patoa ka ho toba fatše kapa ka tlas'a metsi, kahoo e fokotsa bothata ba kaho ea morero.
Ea boraro, e na le khanyetso ea tšusumetso.Esita le sebakeng se tlaase sa mocheso, pipe ea tšepe e ke ke ea senyeha, kahoo ts'ebetso ea eona e na le melemo e itseng.

Thepa ea seamless pipe
Ka lebaka la matla a phahameng a matla a lisebelisoa tsa tšepe tsa phala ea tšepe e se nang moeli, bokhoni ba eona ba ho hanyetsa tšenyo bo matla, 'me bo na le mocha o se nang letho, kahoo o ka tsamaisa mokelikeli ka katleho.Pipe ea tšepe, 'me ho tiea ha eona ho batla ho le khōlō.Ka hona, ha phaephe ea tšepe e se nang seamless e ka jara mojaro, e ka sebelisoa haholo mererong e nang le litlhoko tse phahameng tsa kaho.

3. Khetholla ho latela ts'ebetso

Ts'ebetsong ea ho khetholla liphaephe tse cheselitsoeng le liphaephe tse se nang moeli ho latela ts'ebetso, liphaephe tsa tšepe tse cheselitsoeng li cheselitsoe ho latela mokhoa o batang, extrusion le lits'ebetso tse ling.Ha peipi ea tšepe e cheselitsoe, e tla etsa phala e tsoetsoeng ka spiral le phala e otlolohileng ea seam e otlolohileng, 'me e tla etsa phala ea tšepe e chitja, phala ea tšepe e sekoere, phala ea tšepe e oval, phala ea tšepe e khutlo-tharo, phala ea tšepe e nang le hexagonal, phala ea tšepe ea rhombus, phala ea tšepe e octagonal, esita le peipi ea tšepe e rarahaneng haholoanyane.

Ka bokhutšoanyane, lits'ebetso tse fapaneng li tla theha liphaephe tsa tšepe tsa libopeho tse fapaneng, e le hore liphaephe tsa tšepe tse cheselitsoeng le lipeipi tsa tšepe tse se nang moeli li ka khetholloa ka ho hlaka.Leha ho le joalo, ts'ebetsong ea ho khetholla liphaephe tsa tšepe tse se nang moeli ho latela ts'ebetso, e itšetlehile haholo ka mekhoa ea phekolo e chesang le e batang.Haholo-holo ho na le mefuta e 'meli ea liphaephe tsa tšepe tse se nang moroko, tse arotsoeng ka lipeipi tsa tšepe tse se nang moroko tse kentsoeng ka ho chesa le lipeipi tsa tšepe tse se nang moroko tse kentsoeng ka serame.Liphaephe tsa tšepe tse kentsoeng ka mocheso o chesang li entsoe ka ho phunya, ho bilika le lits'ebetso tse ling, haholo-holo lipeipi tsa tšepe tse bophara bo boholo le tse teteaneng tse se nang moroallo li entsoe ka mokhoa ona;liphaephe tse nang le serame li entsoe ka likheo tsa li-tube tse batang, 'me matla a thepa a fokotsehile, empa likarolo tsa eona tsa ka ntle le tse ka hare tsa taolo li boreleli.

4. Hlophisa ka tšebeliso

Liphaephe tsa tšepe tse cheselitsoeng li na le matla a holimo a ho kobeha le a torsional le matla a ho jara moroalo, kahoo hangata li sebelisoa haholo ha ho etsoa likarolo tsa mochini.Ka mohlala, liphaephe tsa ho phunya oli, litšepe tse khannang likoloi, liforeimi tsa libaesekele le sekafola ea tšepe e sebelisoang ha ho hahoa, kaofela li entsoe ka lipeipi tsa tšepe tse cheselitsoeng.Leha ho le joalo, liphaephe tsa tšepe tse se nang moroko li ka sebelisoa e le liphaephe tsa ho tsamaisa maro hobane li na le likaroloana tse sekoti le litšepe tse telele tse se nang meruko ho li potoloha.Ka mohlala, e ka sebelisoa e le liphaephe bakeng sa ho tsamaisa oli, khase ea tlhaho, khase, metsi, joalo-joalo. Ho phaella moo, matla a ho kobeha ha phala ea tšepe e se nang seamless e batla e le nyenyane, kahoo e sebelisoa ka kakaretso liphaepheng tsa mouoane o chesang haholo bakeng sa tlaase le ho feta. li-boilers tsa khatello e mahareng, liphaephe tsa metsi a belang le liphaephe tsa mouoane tse futhumetseng haholo bakeng sa liboiler tsa locomotive.Ka bokhutšoanyane, ka ho arola lisebelisoa, re ka khetholla ka ho hlaka liphaephe tsa tšepe tse cheselitsoeng le liphaephe tsa tšepe tse se nang moeli.