1.Khetho ea thepa le ho etsa tjheseletsa ho tsamaellana le ASME Boiler le Pressure Vessel Code le ANSI Pressure Pipeline Code .
2. Sebopeho sa lik'hemik'hale tsa tšepe ea likarolo tse cheselitsoeng le lisebelisoa tse cheselitsoeng li tlameha ho lumellana le litokisetso tsa maemo.Thepa ea motheo e lokela ho lumellana le lipehelo tsa tekheniki tsa ASTM tsa lingoliloeng tse amehang B165, B164, B127.thepa ea ho tlatsa e lokela ho lumellana le thepa ea ho tlatsa ea ASME A-42 bakeng sa ER-NiCu-7 kapa ER-ENICu-4 e boletsoeng.
3. The weld bevel le sebaka se potolohileng letheba (oli ester, filimi ea oli, mafome, joalo-joalo) e lokela ho hloekisoa ka tharollo ea ho hloekisa.
4. Ha mocheso oa thepa ea motheo o le ka tlase ho 0 ℃, ho hlokahala hore u chese pele ho 15.6-21 ℃, 'me bevel ea weld ea thepa e futhumetse ho 16-21 ℃ ka hare ho 75mm.
5. The weld bevel prefabricated haholo-holo itšetlehile ka boemo tjheseletsa le botenya ba lintho tse bonahalang tse, Monel motsoako hloka angle bevel ea tjheseletsa ho feta thepa e 'ngoe, bohale lerootho ho feta lisebelisoa tse ling ho ba nyenyane, bakeng sa monel motsoako poleiti bokima jwa 3.2. -19mm, angle ea bevel ke 40 ° angle e nang le bohale bo sa hlakang ba 1.6mm, lekhalo la motso ke 2.4mm, ka tlase ho 3.2mm weld mahlakoreng ka bobeli ho khaola ka mahlakoreng a mabeli kapa bevel hanyenyane, eseng bevel.Mahlakore a weld a qala ho etsoa ka mekhoa ea mochini, kapa mekhoa e meng e nepahetseng, joalo ka ho rala arc gas planing kapa plasma cutting, arc cutting.Ho sa tsotellehe mokhoa oo, lehlakoreng la weld e lokela ho ba junifomo, boreleli le burr-mahala, bevel e ke ke ea e-ba le slag, mafome le litšila tse kotsi, haeba ho na le mapetsong a slag le liphoso tse ling li hloka ho belisoa ebe li hlahlojoa ka hloko pele li cheselletsa. .
6. Litokisetso tsa botenya ba poleiti ea botsoali, botenya ba thepa bo khothalelitsoeng (4-23mm) ho fihla ho 19mm e lumelletsoeng weld, botenya bo bong le bona bo ka kolobisoa empa bo hloka sehokelo sa sekeche se qaqileng.
7. Welding ka pel'a molamu oa tjheseletsa ho omisa kalafo, ho omisa taolo ea mocheso ho 230 - 261 C.
8. Maemo a tjheseletsa: bokaholimo ba likarolo tse cheselitsoeng li ke ke tsa kolobisoa ka lebaka la pula le mongobo, matsatsi a lipula, matsatsi a moea a ke keng a ba le tjheseletsa e bulehileng, ntle le haeba ho thehwa lesaka le sireletsang.
9. Ha ho phekolo ea mocheso e hlokahalang ka mor'a ho tjheseletsa.
10. Boholo ba theknoloji ea ho tjheseletsa e na le tšepe ea arc welding (SMAW), e ka boela ea sebelisoa ka khase e sirelelitsoeng tungsten arc welding (GTAW), welding othomathike keha e khothalletsoe.Haeba tjheseletsa othomathike e sebelisoa, joale argon arc tjheseletsa, tshebediso ya tjheseletsa molamu ha e sisinyeha tshebetso tjheseletsa, e le hore ho etsa hore tšepe tjheseletsa fluidity tshebetso, e ka ba hanyenyane swing ho thusa phallo ea tšepe tjheseletsa, empa palo e kahodimodimo swing bophara etsa ha e fete ka makhetlo a mabeli bophara ba molamu oa welding, ka tšebeliso ea mokhoa oa SMAW oa ho tjheseletsa o bonoloparamethara ke:Phepelo ea matla: khokahanyo e tobileng, e ka morao, ts'ebetso e mpeVoltage: 18-20VCurrent: 50 - 60AElectrode: ka kakaretso φ2.4mm ENiCu-4 (Monel 190) electrode
11. Spot welding e lokela ho kopanngoa motsong oa mocha oa chese.
12. Ka mor'a hore weld e thehoe, ha ho na moeli o lumelloang ho ba teng.
13. The butt weld e lokela ho matlafatsoa, bophahamo ba matlafatso ha boa lokela ho ba tlase ho 1.6mm le ho feta 3.2mm, tlhahiso ha ea lokela ho feta 3.2mm, mme e se ke ea feta 3.2mm ea bevel pipe.
14. Ka mor'a tjheseletsa mong le e mong lera la tjheseletsa, e lokela ho ba tjheseletsa flux le adhesion le tjheseletsa tšepe terata borashe ho tlosa hloekileng, pele tjheseletsa lera latelang.
15. Ho lokisa sekoli: Ha boleng ba bothata ba weld, kopo ea ho sila le ho itšeha kapa khase ea arc e tla chekoa mefokolo ho fihlela 'mala oa tšepe oa pele, ebe o kenngoa hape ho ea ka mekhoa ea pele ea tjheseletsa le litokisetso tsa theknoloji, u se ke ua etsa joalo. lumella mokhoa oa hammering ho koala sekoti sa tšepe ea weld kapa ho tlatsa sekoti ka lintho tse tsoang linaheng tse ling.
16. Carbon steel overlay tjheseletsa Monel alloy e tla sebelisa p2.4mm welding rod, hobane the welded Monel alloy layer e lokela ho ba bonyane 5mm e teteaneng, e le ho qoba mapetsong, e lokela ho aroloa bonyane likarolo tse peli tsa tjheseletsa.Lera la pele ke lera la phetoho ea motsoako oa Monel o kopantsoeng le tšepe ea carbon.Karolo ea bobeli ka holim'a lera le hloekileng la Monel alloy, ka mor'a ho sebetsa ho etsa bonnete ba hore ho na le Monel alloy e hloekileng ea 3.2mm, e 'ngoe le e' ngoe e nang le welded e lokela ho pholile mocheso oa kamore, ka brush ea tšepe e sa hloekang ho tlosa tjheseletsa pele ho tjheseletsa. ka lera.
17. Botenya ho feta 6,35 limilimithara tsa Monel motsoako poleiti, butt tjheseletsa ho arotsoe ka le dikarolo tse 'nè kapa ho feta tsa tjheseletsa.Likarolo tse tharo tsa pele li fumaneha molamu o motle oa tjheseletsa (φ2.4mm) welding, likarolo tse seng kae tsa ho qetela tse fumanehang molamu o mahoashe oa tjheseletsa (φ3.2mm) welding.
18. Monel alloy welding pakeng tsa AWS ENiCu-4 welding rod ER NiCu-7 terata, carbon steel le Monel alloy welding le EN NiCu-1 kapa EN iCu-2 welding rod litokisetso tse ling le tse tšoanang le mantsoe a ka holimo.
taolo ya boleng
Ho netefatsa boleng ba welding, tlhahlobo ea mekhoa e sa senyeheng ea tlhahlobo e bolela ho laola boleng, joalo ka radiation, particle particle, ultrasonic, penetration le mekhoa e meng ea tlhahlobo bakeng sa tlhahlobo.Li-welds tsohle li boetse li lokela ho hlahlojoa bakeng sa liphoso tsa ponahalo, tse kang mapetsong a holim'a metsi, ho loma, ho lumellana le ho kenella ha weld, joalo-joalo.Li-welld tsohle tsa metso li lokela ho hlahlojoa bakeng sa ho mebala, 'me haeba ho fumanoa mefokolo, li lokela ho lokisoa pele li-welds tse setseng li hlahlojoa.
Nako ea poso: Feb-13-2023