SELELEKELA
Ho na le mefuta e mengata e fapaneng ea li-electrode tse sebelisoang ts'ebetsong ea ho tjheseletsa tšepe e sirelelitsoeng (SMAW). Sepheo sa tataiso ena ke ho thusa ka ho tseba le ho khetha li-electrode tsena.
Tlhahlobo ea Elektrode
Li-electrode tsa ho tjheseletsa tsa arc li khetholloa ho sebelisoa sistimi ea linomoro ea AWS, (Mokhatlo oa Amerika oa ho tjheseletsa) 'me li entsoe ka boholo ho tloha ho 1/16 ho isa ho 5/16. Mohlala e ka ba thupa ea ho tjheseletsa e khetholloang e le electrode ea 1/8" E6011.
Electrode e bophara ba 1/8".
"E" e emetse electrode ea ho tjheseletsa ea arc.
E latelang e tla ba nomoro ea linomoro tse 4 kapa tse 5 e hatisitsoeng holim'a electrode. Linomoro tse peli tsa pele tsa nomoro ea linomoro tse 4 le linomoro tse 3 tsa pele tsa nomoro ea linomoro tse 5 li bontša matla a fokolang a ho thaepa (ka liponto tse likete ka lisenthimithara tse sekwere) tsa weld eo thupa e tla e hlahisa, khatello ea maikutlo e fokotsoe. Mehlala e ka ba e latelang:
E60xx e ne e tla ba le matla a ho thaepa a 60,000 psi E110XX e ne e tla ba 110,000 psi.
Nomoro e latelang ho ea ho ea ho qetela e bontša sebaka seo electrode e ka sebelisoang ho sona.
1.EXX1X e sebelisetsoa maemo ohle
2.EXX2X e sebelisetsoa ho sebelisoa maemong a bataletseng le a bataletseng
3.EXX3X ke ea ho tjheseletsa ka tsela e bataletseng
Linomoro tse peli tsa ho qetela hammoho, li bontša mofuta oa pente holim'a electrode le motlakase oa ho tjheseletsa oo electrode e ka sebelisoang ka oona. Joalo ka DC e otlolohileng, (DC -) DC reverse (DC+) kapa AC
Nke ke ka hlalosa mofuta oa lipeiti tsa li-electrode tse fapaneng, empa ke tla fana ka mehlala ea mofuta oa hona joale oo e 'ngoe le e 'ngoe e tla sebetsa le oona.
Li-electrode le maqhubu a motlakase a sebelisitsoeng
● EXX10 DC+ (DC reverse kapa DCRP) electrode e ntle.
● EXX11 AC kapa DC- (DC e otlolohileng kapa DCSP) electrode e mpe.
● 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+
Mefuta ea Hona Joale
SMAW e etsoa ho sebelisoa AC kapa DCcurrent. Kaha DC current e phalla ka lehlakoreng le le leng, DC current e ka ba DC straight, (electrode negative) kapa DC reversed (electrode positive). Ha DC reversed, (DC+ KAPA DCRP) weld e kenella e tla ba tebileng. DC straight (DC- KAPA DCSP) weld e tla ba le sekhahla se potlakileng sa ho qhibiliha le ho beha. Weld e tla ba le medium interception.
Motlakase oa AC o fetola polarity ea oona makhetlo a 120 ka motsotsoana ka boona 'me o ke ke oa fetoloa joalo ka motlakase oa DC.
Boholo ba li-electrode le li-amps tse sebelisitsoeng
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 bahlahisi ba fapaneng ba li-electrode bakeng sa molamu oa boholo bo tšoanang. Hape mofuta oa ho koahela electrode o ka ama mefuta ea amperage. Ha ho khoneha, hlahloba tlhaiso-leseling ea moetsi oa electrode eo u tla e sebelisa bakeng sa litlhophiso tsa bona tsa amperage tse khothaletsoang.
Tafole ea li-electrode
| DIAMETER EA ELEKTRODE (BOTENYANE) | LEBAKA LA AMP | POLEITE |
| 1/16" | 20 - 40 | HO FIHLELA HO 3/16" |
| 3/32" | 40 - 125 | HO FIHLELA HO 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! Ha thepa e tla kopanngwa e le teteaneng, motlakase o tla eketseha mme motlakase o tla hlokahala o moholo.
Mefuta e meng ea li-electrode
Karolo ena e tla hlalosa ka bokhutšoanyane li-electrode tse 'ne tse sebelisoang hangata bakeng sa tlhokomelo le ho lokisa ho tjheseletsa tšepe e bobebe. Ho na le li-electrode tse ling tse ngata tse fumanehang bakeng sa ho tjheseletsa mefuta e meng ea litšepe. Buisana le morekisi oa phepelo ea ho tjheseletsa oa lehae bakeng sa electrode e lokelang ho sebelisoa bakeng sa tšepe eo u batlang ho e tjheseletsa.
E6010Electrode ena e sebelisetsoa ho tjheseletsa maemo ohle ho sebelisoa DCRP. E hlahisa tjheseletso e tebileng e kenellang 'me e sebetsa hantle holim'a litšepe tse litšila, tse rusitseng, kapa tse pentiloeng.
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 ka maqhubu a AC le a DC. E hlahisa weld e kenellang ka mokhoa o mahareng e nang le ponahalo e ntle ea weld bead.
E7018Electrode ena e tsejoa e le electrode e nang le haeterojene e tlase 'me e ka sebelisoa le AC kapa DC. Seaparo se holim'a electrode se na le mongobo o tlase o fokotsang ho kenngoa ha haeterojene ka har'a weld. Electrode e ka hlahisa li-weld tsa boleng ba x-ray ka ho kenella ho mahareng. (Hlokomela, electrode ena e tlameha ho bolokoa e omme. Haeba e koloba, e tlameha ho omisoa ka ontong ea molamu pele e sebelisoa.)
Ho tšeptjoa hore tlhahisoleseling ena ea motheo e tla thusa motjhini o mocha kapa oa lapeng ho tseba mefuta e fapaneng ea li-electrode le ho khetha e nepahetseng bakeng sa merero ea bona ea ho tjheseletsa.
Nako ea poso: Tshitwe-23-2022