LIEKETSENG
Ho na le mefuta e mengata e fapaneng ea li-electrode tse sebelisoang ts'ebetsong ea tšepe e sirelelitsoeng ea arc, (SMAW).Sepheo sa tataiso ena ke ho thusa ka ho khetholla le ho khetha li-electrode tsena.
LEHLOHONOLO ELECTRODE
Li-electrode tsa li-arc welding li khetholloa ho sebelisoa mokhoa oa ho bala oa AWS, (American Welding Society) 'me o entsoe ka boholo ho tloha 1/16 ho ea ho 5/16.Mohlala e ka ba molamu oa ho cheselletsa o tsejoang e le electrode ea 1/8" E6011.
Electrode ke 1/8" bophara.
"E" e emetse arc welding electrode.
E latelang e tla ba nomoro ea 4 kapa 5 e hatisitsoeng holim'a electrode.Linomoro tse peli tsa pele tsa nomoro ea 4 le linomoro tsa pele tse 3 tsa nomoro ea 5 li bonts'a matla a fokolang (ka liponto tse likete ka lisenthimithara tse lisekoere) ea weld eo molamu o tla e hlahisa, khatello ea maikutlo e imolohile.Mehlala e ka ba ka tsela e latelang:
E60xx e ne e tla ba le matla a matla a 60,000 psi E110XX e ne e tla ba 110,000 psi.
Nomoro e latelang ho isa ho ea ho qetela e bontša boemo boo eleketrode e ka sebelisoang ho eona.
1.EXX1X ke ea ho sebelisoa maemong ohle
2.EXX2X ke ea ho sebelisoa maemong a bataletseng le a rapameng
3.EXX3X ke ea ho tjheseletsa sephara
Linomoro tse peli tsa ho qetela hammoho, li bonts'a mofuta oa ho roala holim'a eleketrode le hona joale oa welding eleketrode e ka sebelisoang le eona.Tse kang DC straight, (DC -) DC reverse (DC+) kapa AC
Ha ke na ho hlalosa mofuta oa liaparo tsa li-electrode tse fapaneng, empa ke tla fana ka mehlala ea mofuta oa hona joale oo e mong le e mong a tla sebetsa le oona.
ELECTRODE LE LITABA TSE SEBELISANG
● EXX10 DC + (DC reverse kapa DCRP) electrode e ntle.
● EXX11 AC kapa DC- (DC straight or DCSP) electrode negative.
● EXX12 AC kapa DC-
● EXX13 AC, DC- kapa DC+
● EXX14 AC, DC- kapa DC+
● EXX15 DC+
● EXX16 AC kapa DC+
● EXX18 AC, DC- kapa DC+
● EXX20 AC ,DC- kapa DC+
● EXX24 AC, DC- kapa DC+
● EXX27 AC, DC- kapa DC+
● EXX28 AC kapa DC+
LIEKETSENG LEKHOANE
SMAW e etsoa ho sebelisoa AC kapa DCcurrent.Kaha DC hajoale e phalla ka lehlakoreng le le leng, DC ea hona joale e ka ba DC e otlolohileng, (electrode negative) kapa DC reversed (electrode positive).Ha DC e khutlisetsoa morao, (DC+ KAPA DCRP) ho kenella ha weld ho tla teba.DC straight (DC- KAPA DCSP) weld e tla ba le lebelo la ho qhibiliha le depositi kapele.Weld e tla ba le ho kenella ha mahareng.
Ac e fetoha polarity makhetlo a 120 ka motsotsoana ka boeona 'me e ke ke ea fetoloa joalo ka ha DC ea hajoale.
BOKOLO BA ELECTRODE LE AMPS SEBELISA
Lintlha tse latelang li tla sebetsa e le tataiso ea motheo ea mefuta ea amp e ka sebelisoang bakeng sa li-electrode tsa boholo bo fapaneng.Hlokomela hore litekanyetso tsena li ka fapana pakeng tsa lihlahisoa tse fapaneng tsa li-electrode bakeng sa molamu oa boholo bo tšoanang.Hape mofuta oa ho roala holim'a electrode o ka ama mefuta e mengata ea amperage.Ha ho khoneha, hlahloba lintlha tsa moetsi oa eleketrode eo u tla e sebelisa bakeng sa litlhophiso tsa bona tse khothaletsoang.
Tafole ea Electrode
| ELECTRODE DIAMETER (Botenya) | AMP RAELE | PLATE |
| 1/16" | 20-40 | HO FIHLELA 3/16" |
| 3/32" | 40 - 125 | HO FIHLELA 1/4" |
| 1/8 | 75-185 | HO FETA 1/8" |
| 5/32" | 105 - 250 | HO FETA 1/4" |
| 3/16" | 140 - 305 | HO FETA 3/8" |
| 1/4" | 210 - 430 | HO FETA 3/8" |
| 5/16" | 275 - 450 | HO FETA 1/2" |
Hlokomela!Thepa e teteaneng e lokelang ho chesetsoa, e phahame hona joale e hlokahalang le elektrode e kholoanyane e hlokahalang.
LIEKETSENG ELECTRODE MEFUTA
Karolo ena e tla hlalosa ka bokhutšoanyane li-electrode tse 'nè tse atisang ho sebelisoa bakeng sa tlhokomelo le ho lokisa welding ea tšepe e bonolo.Ho na le li-electrode tse ling tse ngata tse fumanehang bakeng sa ho cheselletsa mefuta e meng ea litšepe.Sheba le morekisi oa thepa ea tjheseletsa sebakeng sa heno bakeng sa eleketrode e lokelang ho sebelisoa bakeng sa tšepe eo u batlang ho e cheseletsa.
E6010Electrode ena e sebelisetsoa ho tjheseletsa maemo ohle ho sebelisa DCRP.E hlahisa tjheseletso e tebileng e kenang mme e sebetsa hantle hodima dimetale tse ditshila, tse mafome kapa tse pentilweng
E6011Electrode ena e na le litšobotsi tse tšoanang tsa E6010, empa e ka sebelisoa le maqhubu a AC le DC.
E6013Electrode ena e ka sebelisoa le maqhubu a AC le DC.E hlahisa tjheseletso e kenang mahareng e nang le sefaha se hodimo sa weld.
E7018Electrode ena e tsejoa e le electrode e tlase ea hydrogen mme e ka sebelisoa le AC kapa DC.Ho roala holim'a electrode ho na le mongobo o fokolang o fokotsang ho kenngoa ha hydrogen ka har'a weld.Electrode e ka hlahisa li-welds tsa boleng ba x-ray ka ho kenella ha mahareng.(Hlokomela, electrode ena e tlameha ho lula e omme. Haeba e koloba, e tlameha ho omisoa ka ontong ea rod pele e sebelisoa.)
Ho na le tšepo ea hore tlhahisoleseding ena ea motheo e tla thusa setsebi se secha kapa sa lapeng ho khetholla mefuta e sa tšoaneng ea li-electrode le ho khetha e nepahetseng bakeng sa merero ea bona ea ho tjheseletsa.
Nako ea poso: Dec-23-2022