1. Molao-motheo oa ts'ebetso
Electrode arc welding ke mokhoa oa ho tjheseletsa oa arc o sebelisang molamu o sebelisoang ka letsoho.Letšoao la letšoao E bakeng sa welding ea electrode arc le letšoao la linomoro 111.
Mokhoa oa ho tjheseletsa oa li-electrode arc welding: ha ho tjheseletsa, molamu oa welding o kopana le workpiece hang ka mor'a potoloho e khutšoanyane, e hotetsa arc.Thempereichara e phahameng ea arc ka mokhoa o sa fellang qhibilihisa eleketrode le workpiece, 'me melted konokono liphetoho ho karolo e itseng melted workpiece holim'a sebōpeho sa lerotholi le qhibilihisitsoeng, e leng fused hammoho ho theha letamo qhibilihile.The tjheseletsa electrode flux hlahisa palo e itseng ea khase le mokelikeli slag nakong ea ho qhibiliha, 'me khase e hlahisoang e tlatsa arc le sebaka se potolohileng letamo le qhibilihisitsoeng, se bapala karolo ea ho arola sepakapaka ho sireletsa tšepe ea metsi.Mokelikeli slag segokanyipalo e nyenyane, ka letamo qhibiliha kamehla phaphametseng, koahetsoeng ka tšepe mokelikeli ka holimo, ho sireletsa karolo ea tšepe mokelikeli.Ka nako e ts'oanang, letlalo la flux le qhibilihisa khase, slag le ho qhibiliha mokokotlo oa weld, workpiece letoto la liketso tsa metallurgical ho etsa bonnete ba hore ts'ebetso ea weld e thehoa.
2. Melemo ea li-electrode arc welding
1) Lisebelisoa tse bonolo, tlhokomelo e bonolo.Mechini ea welding ea AC le DC e sebelisetsoang ho cheselletsa li-electrode arc e batla e le bonolo ebile ha e hloke lisebelisoa tse thusang tse rarahaneng bakeng sa ts'ebetso ea molamu oa welding, 'me e hloka feela ho ba le lisebelisoa tse bonolo tse thusang.Mechini ena ea tjheseletsa e bonolo ka sebopeho, e theko e tlase ebile e bonolo ho e hlokomela, mme letsete la ho reka thepa le tlase, e leng le leng la mabaka a ts'ebeliso ea eona e pharaletseng.
2) Ha ho na tšireletso ea khase e thusang e hlokahalang, molamu oa welding ha o fane feela ka tšepe ea ho tlatsa, empa hape o khona ho hlahisa khase e sireletsang ho sireletsa letamo le qhibilihisitsoeng le weld ho tloha ho oxidation nakong ea ts'ebetso ea welding, 'me e na le khanyetso e matla ea moea.
3) Ts'ebetso e feto-fetohang le ho ikamahanya le maemo ho matla.Stick arc welding e loketse bakeng sa ho tjheseletsa likotoana tse le 'ngoe kapa lihlahisoa tse nyane, tse khutšoane ebile li sa tloaeleha, tse fumanehang sebakeng se sepakapakeng le li-welding tse ling tseo ho seng bonolo ho li fihlela welding ea mochini.Welding e ka etsoa kae kapa kae moo molamu oa welding o ka fihlang teng, ka phihlello e ntle le ts'ebetso e bonolo haholo.
4) Lisebelisoa tse fapaneng tse fapaneng, tse loketseng ho tjheseletsa litšepe tse ngata tsa indasteri le li-alloys.Khetha molamu o nepahetseng oa ho tjheseletsa o ke ke oa kenya tšepe ea carbon feela, tšepe e tlase ea alloy, empa hape le tšepe e phahameng ea alloy le litšepe tse se nang ferrous;ha se feela ka tjheseletsa tšepe e tšoanang, empa hape ka tjheseletsa litšepe tse sa tšoaneng, empa hape lahla tšepe tokiso tjheseletsa le thepa e sa tšoaneng tšepe tse kang tjheseletsa overlay.
3. mefokolo ea li-electrode arc welding
1) litlhoko tsa theknoloji ea li-welders li phahame haholo, litšenyehelo tsa koetliso ea li-welders.Boleng ba ho tjheseletsa ha li-electrode arc welding ho kenyelletsa khetho ea li-electrode tse loketseng tsa welding, litekanyetso tsa ts'ebetso ea welding le lisebelisoa tsa welding, haholoholo ke mekhoa ea ts'ebetso ea li-welders le boiphihlelo ho netefatsa hore boleng ba tjheseletsa ba li-electrode arc welding ho isa bohōleng bo itseng bo khethoa ke li-welders tse sebetsang. mekhoa.Ka hona, hangata li-welders li tlameha ho koetlisoa, litšenyehelo tsa koetliso tse hlokahalang li kholo.
2) Maemo a fokolang a mosebetsi.Stick arc welding haholo-holo e itšetlehile ka ts'ebetso ea matsoho ea li-welders le ho shebella mahlo ho phethahatsa ts'ebetso, matla a basebetsi ba li-welders.'Me kamehla mocheso o phahameng oa ho baka le mosi o chefo, maemo a basebetsi a batla a fokola, kahoo ho matlafatsa tšireletso ea mosebetsi.
3) Ts'ebetso e tlase ea tlhahiso.Welding rod arc welding e itšetlehile haholo ka ts'ebetso ea letsoho, le litekanyetso tsa ts'ebetso ea welding ho khetha mefuta e nyane.Ho phaella moo, electrode ea ho tjheseletsa e lokela ho fetoloa khafetsa, 'me ho hloekisoa ha slag ho lokela ho etsoa khafetsa, ha ho bapisoa le ho tjheseletsa ka mokhoa o itekanetseng, tlhahiso ea welding e tlaase.
4) Ha e sebetse ho litšepe tse khethehileng le welding e tšesaane ea poleiti.Bakeng sa litšepe tse sebetsang le litšepe tse sa tsitsang, hobane litšepe tsena li na le kutloelo-bohloko haholo ho tšilafalo ea oksijene, tšireletso ea eleketrode ha ea lekana ho thibela oxidation ea litšepe tsena, ts'ireletso ea ts'ireletso ha e lekane, boleng ba welding ha bo fihlelle litlhoko. kahoo u ke ke ua sebelisa electrode arc welding.Litšepe tse tlaase tse qhibilihisang le li-alloys tsa tsona li ke ke tsa chesoa ke li-electrode arc welding hobane mocheso oa arc o phahame haholo bakeng sa bona.
4. Lethathamo la kopo
1) E sebetsa ho tjheseletsa ea maemo ohle, botenya ba workpiece bo kaholimo ho 3mm
2) Letoto la tšepe le chesehang: litšepe tse ka chesetsoang li kenyelletsa tšepe ea carbon, tšepe e tlaase ea alloy, tšepe e sa hloekang, tšepe e thibelang mocheso, koporo le lisebelisoa tsa eona;litšepe tse ka chesetsoang empa li ka futhumatsoa pele, ka mor'a ho futhumatsoa kapa ka bobeli li kenyelletsa tšepe e entsoeng ka tšepe, tšepe e matla haholo, tšepe e timang, joalo-joalo;litšepe tse tlase tse qhibilihang tse ke keng tsa chesetsoa joalo ka Zn/Pb/Sn le li-alloys tsa eona, litšepe tse sa keneng tse kang Ti/Nb/Zr, joalo-joalo.
3) Sebopeho se loketseng ka ho fetisisa sa sehlahisoa le tlhaho ea tlhahiso: lihlahisoa tse nang le mehaho e rarahaneng, e nang le maemo a sa tšoaneng a sebaka, li-welds tse sa sebelisetsoeng habonolo kapa tse ikemetseng;lihlahisoa tse cheselitsoeng ka theko e le 'ngoe kapa tse tlase haholo le mafapha a ho kenya kapa ho lokisa.
Nako ea poso: Oct-27-2022