Umahluko phakathi kwe-TIG, i-MIG kunye ne-MAG welding
1. I-TIG ye-welding ngokuqhelekileyo i-torch ye-welding ebanjwe ngesandla esinye kunye nocingo lwe-welding olubanjwe kwelinye, olulungele ukuwelda ngesandla kwemisebenzi encinci kunye nokulungiswa.
2. Kwi-MIG kunye ne-MAG, ucingo lwe-welding luthunyelwa kwi-torch ye-welding ngokusebenzisa i-automatic wire feeding mechanism, efanelekileyo kwi-welding ngokuzenzekelayo, kwaye ngokuqinisekileyo inokusetyenziswa ngesandla.
3. Umahluko phakathi kwe-MIG kunye ne-MAG ikakhulu kwigesi ekhuselayo. Isixhobo siyafana, kodwa eso sangaphambili sikhuselwe ngokubanzi yi-argon, efanelekileyo kwi-welding metal non-ferrous; Le yokugqibela ixutywe ngokubanzi ne-carbon dioxide gas esebenzayo kwi-argon, kwaye ifanelekile ukuwelda intsimbi ephezulu kunye nentsimbi ephezulu.
4. I-TIG kunye ne-MIG yi-inert gas shielded welding, eyaziwa ngokuba yi-argon arc welding. Irhasi ye-inert ingaba yi-argon okanye i-helium, kodwa i-argon ingabizi, ngoko isetyenziswa ngokuqhelekileyo, ngoko ke i-inert gas arc welding ibizwa ngokuba yi-argon arc welding.
Ukuthelekiswa kwe-MIG welding kunye ne-TIG welding
Ukuthelekiswa kwe-MIG welding kunye ne-TIG welding ye-MIG (i-melting inert gas shielded welding) ngesiNgesi: i-metal inert-gas welding isebenzisa i-electrode enyibilikayo.
Indlela ye-arc welding esebenzisa i-gas eyongeziweyo njenge-arc medium kwaye ikhusela i-droplets yetsimbi, i-welding pool kunye ne-high-temperature metal kwi-welding zone ibizwa ngokuba yi-gas metal shielded arc welding.
Irhasi ye-inert (Ar okanye He) ekhuselweyo ye-arc yendlela yokuwelda ngocingo oluqinileyo ibizwa ngokuba yi-molten inert gas shielded welding, okanye i-MIG welding ngokufutshane.
Ukuwelda kwe-MIG kuyafana nokuwelda kwe-TIG ngaphandle kokuba ucingo lusetyenzisiwe endaweni ye-electrode ye-tungsten kwitotshi. Ngaloo ndlela, ucingo lwe-welding luyancibilika nge-arc kwaye londliwa kwindawo ye-welding. Iirola eziqhutywa ngombane zondla ucingo ukusuka kwi-spool ukuya kwitotshi njengoko kufunwa ukuwelda, kwaye umthombo wobushushu ukwayi-DC arc.
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Kodwa i-polarity ichasene naleyo isetyenziswa kwi-TIG welding. Igesi ekhuselayo esetyenzisiweyo nayo ihluke, kwaye i-oxygen ye-1% yongezwa kwi-argon ukuphucula ukuzinza kwe-arc.
Njengokuwelda kwe-TIG, inokuwelda phantse zonke iintsimbi, ingakumbi ezilungele izixhobo zokuwelda ezifana ne-aluminiyam kunye ne-alloys ye-aluminiyam, i-alloys yobhedu kunye ne-copper, kunye nentsimbi engenasici. Kukho phantse akukho lahleko evuthayo ye-oxidation kwinkqubo ye-welding, kuphela inani elincinci lokulahlekelwa ngu-evaporation, kwaye inkqubo ye-metallurgical ilula.
I-TIG welding (i-Tungsten Inert Gas Welding), ekwabizwa ngokuba yi-non-melting inert gas tungsten shielded welding. Nokuba i-welding ye-manual okanye i-welding ye-othomathikhi ye-0.5-4.0mm yentsimbi eshinyeneyo, ukuwelda kwe-TIG yeyona ndlela isetyenziswa kakhulu.
Indlela yokongeza ucingo lokuzalisa nge-TIG welding isoloko isetyenziselwa ukuxhasa i-welding yemikhumbi yoxinzelelo, kuba ukuxinana komoya we-TIG welding kungcono kwaye kunokunciphisa i-porosity ye-weld seam ngexesha le-welding yeenqanawa zoxinzelelo.
Umthombo wokushisa we-TIG welding yi-DC arc, i-voltage esebenzayo yi-10-95 volts, kodwa okwangoku inokufikelela kuma-amps angama-600.
Indlela echanekileyo yokudibanisa umatshini we-welding kukudibanisa i-workpiece kwisibonda esilungileyo sonikezelo lwamandla, kunye ne-tungsten pole kwi-torch ye-welding njenge-pole negative.
Irhasi ye-inert, eqhelekileyo, i-argon, yondliwa ngetotshi ukwenza ikhaka elijikeleze i-arc nangaphezulu kwe-weld pool.
Ukwandisa igalelo lokushisa, ngokuqhelekileyo i-5% ye-hydrogen yongezwa kwi-argon. Nangona kunjalo, xa i-welding ferritic steel stainless, i-hydrogen ayinakongezwa kwi-argon.
Ukusetyenziswa kwegesi malunga ne-3-8 ilitha ngomzuzu.
Kwinkqubo ye-welding, ngaphezu kokuvuthela igesi ye-inert kwi-welding torch, kungcono ukuvuthela igesi esetyenziselwa ukukhusela umva we-weld ukusuka phantsi kwe-weld.
Ukuba unqwenela, i-puddle ye-weld inokuzaliswa ngocingo lokubunjwa okufanayo kunye ne-austenitic material edibeneyo. Uhlobo lwe-316 lokugcwalisa lusetyenziswa ngokuqhelekileyo xa udityaniswa neentsimbi ze-ferritic ezingenasici.
Ngenxa yokukhuselwa kwegesi ye-argon, iyakwazi ukwahlula impembelelo eyingozi yomoya kwisinyithi esinyibilikisiweyo, ngoko ke i-TIG isetyenziswa kakhulu kwi-welding.
Ngokulula oxidized iintsimbi non-ayoni ezifana aluminiyam, magnesium kunye nengxubevange yazo, intsimbi engatyiwa, ubushushu obuphezulu ingxubevange, titanium kunye titanium ingxubevange, kunye nesinyithi refractory esebenzayo (ezifana molybdenum, niobium, zirconium, njl.), ngelixa carbon eqhelekileyo yesiqhelo. intsimbi, intsimbi ephantsi ye-alloy, njl. izixhobo, i-TIG welding ayisetyenziswanga ngokubanzi ngaphandle kwezihlandlo ezifuna umgangatho ophezulu we-welding.
Ixesha lokuposa: Aug-24-2023
