Ho tjheseletsa ha tube-to-sheet ho hloka ho kenella ha metso le ho theha mokokotlo o motle, kahoo ts'ebetso e thata haholoanyane. Ho ea ka maemo a fapaneng a sebaka, tjheseletsa ea li-tube-sheet e ka aroloa ka mefuta e meraro: welding e tsitsitseng e tsitsitseng e tsitsitseng, welding e tsitsitseng e tsitsitseng ea bophahamo le welding e tsitsitseng e tsitsitseng.
Kajeno ke tla bua le uena ka welding e tsitsitseng e tsitsitseng ea lakane ea ho palama.
Sheba setšoantšo se ka tlase bakeng sa angle pakeng tsa toche ea welding, terata ea welding le workpiece.
"Tack welding" hangata e etsoa ka mokhoa oa ho tlatsa terata ka nakoana. Bolelele le palo ea li-welds tsa tack li khethoa ho latela bophara ba phala, ka kakaretso likarolo tse 2 ho isa ho tse 4, karolo ka 'ngoe e bolelele ba 10 ho isa ho 20mm. Ha o tšehetsa welding, qala ka otla arc holim'a weld ea tack, sokela arc in situ, 'me u emele hore weld ea tack e qhibilihe ho etsa letamo le tsitsitseng le qhibilihisitsoeng, ebe u tlatsa terata le weld ka ho le letšehali ho netefatsa hore mokokotlo o phetse hantle. thehoa.
Nakong ea ts'ebetso ea ho cheselletsa, letamo le entsoeng ka ho qhibilihisoa le lokela ho hlokomeloa ka nako leha e le efe, 'me angle pakeng tsa toche ea welding le poleiti e ka tlaase e lokela ho lokisoa ka tsela e nepahetseng ho netefatsa hore boholo ba lesoba le qhibilihisitsoeng le lumellana le ho thibela ho chesa. Ha ho tjheseletsa ho li-welds tse ling, ho fepa ka terata ho lokela ho emisoa kapa ho fokotsoe ho qhibilihisa li-welds tsa tack le ho etsa phetoho e boreleli le li-welds tse fetileng.
Ha arc e tima, tobetsa konopo, hona joale e qala ho bola, 'me ho fepa ka terata ho emisa ka mor'a hore arc crater e tlatsoe. Ka mor'a hore arc e time, letamo le entsoeng ka ho qhibilihisoa lea tiea. Ka nako ena, toche ea welding le terata ea welding e lokela ho tsoela pele ho bolokoa, 'me lebone la welding le lokela ho tlosoa ka mor'a hore phepelo ea khase e emisoe. Ha o kopanya, otla arc sebakeng sa 10-15 mm ka morao ho arc crater, 'me u tsamaise arc ho lenonyeletso ka lebelo le potlakileng hanyenyane; ka mor'a hore arc crater ea pele e qhibilihe ho etsa letamo le qhibilihisitsoeng, ebe hangata le tlatsa wire welding. Haeba ho na le leqhutsu la sebakeng sefaha se ka tlase sa welding, sebelisa grinder ea angle ho e sila e bataletse pele u cheseletsa sekoahelo.
Nakong ea ho tlatsa welding kapa sekoahelo tjheseletsa, mefuta e fapaneng ya swing ea toche tjheseletsa e kholoanyane hanyane, e le hore groove metshetshe ya phala le poleiti e qhibiliha ka ho feletseng. Weld ea ho tlatsa ha ea lokela ho ba e pharaletseng kapa e phahame haholo, 'me bokaholimo bo lokela ho ba bo bataletseng.
Ka linako tse ling tjheseletsa e koahelang e hloka litšepe tse peli, 'me e ka tlaase e lokela ho chesetsoa pele, e lateloe ke e ka holimo. Ha ho chesetsoa sefaha se ka tlase, arc e pota-potile moeli o ka tlase oa sefaha se tlaase, 'me ntlha e ka holimo ea letamo le qhibilihisitsoeng e laoloa ho 1/2 ho isa ho 2/3 ea weld e tlase, ha karolo e ka tlase ea letamo le qhibilihisitsoeng e laoloa. e laoloang letsoapong la 0.5-1.5 limilimithara ka tlaase ho moeli o ka tlaase oa molomo. Ha ho chesetsoa sefaha se ka holimo, arc e lokela ho pota-pota ntlha e ka holimo ea sefaha se tlaase, e le hore ntlha e ka holimo ea letamo le qhibilihisitsoeng e fete ntlha e ka holimo ea groove ka 0.5-1.5mm, 'me ntlha e ka tlaase ea letamo le qhibilihisitsoeng le fetohe. ka thelelo ka sefaha se tlase ho etsa bonnete ba hore seam weld The bokaholimo bo boreleli ebile bo lekana.
Nako ea poso: Mar-01-2023
