1. Khetho e nepahetseng ea li-parameter tsa welding
(1) Welding current le arc voltage Ka CO2 khase e sirelelitsoeng welding, bakeng sa bophara bo bong le bo bong ba terata ea ho tjheseletsa, ho na le molao o itseng pakeng tsa sekhahla sa spatter le hona joale oa welding. Sebakeng se khuts'oane sa phetoho ea nako e nyane, sekhahla sa spatter ea welding se nyane. Ka mor'a ho kena sebakeng se setle sa phetoho ea likaroloana tse phahameng tsa hona joale, tekanyo ea li-welding spatter le eona e nyenyane, 'me sekhahla sa ho senya sekontiri se seholo ka ho fetisisa sebakeng se bohareng. Ho nka terata e nang le bophara ba 1.2 mm e le mohlala, ha motlakase oa welding o ka tlaase ho 150A kapa o moholo ho feta 300A, spatter ea welding e nyenyane, 'me pakeng tsa tse peli, spatter ea welding e kholo. Ha u khetha motlakase oa ho tjheseletsa, sebaka sa hona joale sa welding se nang le sekhahla se phahameng sa ho tjheseletsa se lokela ho qojoa ka hohle kamoo ho ka khonehang, 'me motlakase o loketseng oa arc o lokela ho bapisoa ka mor'a hore hona joale ho behoe qeto.
(2) Bolelele ba katoloso ea terata ea welding: Bolelele ba terata ea welding (ke hore bolelele bo omeletseng) bo boetse bo na le phello ho tjheseletsa spatter. Ha bolelele ba katoloso ea terata ea welding bo ntse bo eketseha, spatter ea welding e kholoanyane. Ka mohlala, bakeng sa terata e nang le bophara ba 1.2mm, ha motlakase oa ho tjheseletsa o le 280A, ha bolelele ba terata bo eketseha ho tloha ho 20mm ho ea ho 30mm, palo ea li-welding spatter e eketseha ka hoo e ka bang 5%. Ka hona, ho hlokahala hore bolelele bo atolositsoeng ba terata ea welding bo khutsufatsoe
2. Ntlafatsa mohloli oa matla a tjheseletsa
Lebaka la ho phatloha ha khase ea CO2 e sirelelitsoeng ka tjheseletsa ke haholo-holo mothating oa ho qetela oa phetoho ea potoloho e khutšoanyane, ka lebaka la keketseho e matla ea nako e khutšoanyane ea potoloho, tšepe ea borokho ea metsi e futhumala ka potlako, e bakang ho bokella mocheso, 'me qetellong, borokho ba mokelikeli bo phatloha ho hlahisa li-splashes. Ha ho nahanoa ka ntlafatso ea mohloli oa matla a tjheseletsa, mekhoa e kang letoto la khokahano ea li-reactor le li-resistors, phetoho ea hona joale, le taolo ea hona joale ea waveform ka potoloho ea tjheseletsa e sebelisoa haholo ho fokotsa ho phatloha ha borokho ba mokelikeli 'me kahoo ho fokotsa spatter ea ho cheselletsa. Hona joale, mechine ea ho tjheseletsa e sirelelitsoeng ea mofuta oa thyristor-mofuta oa leqhubu la CO2 le mochini oa ho tjheseletsa oa mofuta oa inverter-mofuta oa transistor o laoloang ke CO2 o 'nile oa sebelisoa,' me o atlehile ho fokotsa ho phatloha ha CO2 khase e sirelelitsoeng.
3. Eketsa argon (Ar) ho khase ea CO2:
Ka mor'a ho eketsa tekanyo e itseng ea khase ea argon khase ea CO2, thepa ea 'mele le ea lik'hemik'hale ea khase ea CO2 e ile ea fetoloa. Ka keketseho ea karo-karolelano ea khase ea argon, spatter ea welding e ile ea fokotseha butle-butle, 'me phetoho ea bohlokoa ka ho fetisisa ho tahlehelo ea spatter e ne e le ha bophara ba karoloana bo ne bo le boholo ho feta 0. 8mm spatter, empa e na le phello e fokolang ho spatter e nang le bophara ba karoloana e ka tlaase ho 0.8mm.
Ho feta moo, ts'ebeliso ea khase e sirelelitsoeng e sirelelitsoeng welding eo ho eona argon e kenyelletsoang khase ea CO2 e ka boela ea ntlafatsa sebopeho sa weld. Phello ea ho eketsa argon ho CO2 khase ka ho kenella ha weld, bophara ba fusion le bophahamo bo setseng, le argon ka khase ea CO2. Ha likahare tsa khase li ntse li eketseha, botebo ba ho kenella bo fokotseha, bophara ba fusion boa eketseha, 'me bophahamo ba weld boa fokotseha.
4. Sebelisa terata e tlaase ea ho tjheseletsa ka spatter
Bakeng sa terata e tiileng, molemong oa ho netefatsa thepa ea mochini oa lenonyeletso, ho fokotsa khabone ka hohle kamoo ho ka khonehang, 'me ka nepo ho eketsa likarolo tsa alloying joalo ka titanium le aluminium ho ka fokotsa spatter ea welding ka katleho.
Ntle le moo, ts'ebeliso ea terata e sirelelitsoeng ka khase ea CO2 e sirelelitsoeng e ka fokotsa haholo spatter ea welding, 'me spatter ea welding e hlahisoang ke terata e nang le flux-cored e ka bang 1/3 ea terata e tiileng ea terata.
5. Taolo ea ho tjheseletsa toche angle:
Ha toche ea tjheseletsa e le perpendicular ho weldment, palo e fokolang ea tjheseletsa spatter e hlahisoa, 'me ha lehlakoreng le leholo la tšekamelo, spatter e eketsehileng. Ha o tjheseletsa, angle e sekametseng ea toche ea welding ha ea lokela ho feta 20º.
Nako ea poso: Jun-22-2022
