Metal Inert Gas (MIG) welding is anwelding arcInkqubo esebenzisa i-electrode yocingo oluqinileyo oluqhubekayo olushushu kwaye londliwa kwi-weld pool ukusuka kumpu we-welding.Izinto ezimbini ezisisiseko zinyibilika kunye zenza ukudibanisa.Umpu wondla igesi ekhuselayo ecaleni kwe-electrode inceda ukukhusela i-weld pool kwizinto ezingcolisa umoya.
I-Metal Inert Gas (MIG) yokuwelda yaqala ukunikwa ilungelo elilodwa lomenzi wechiza e-USA ngo-1949 yokuwelda ialuminiyam.I-arc kunye ne-weld pool eyenziwe ngokusebenzisa i-electrode yocingo engenanto yayikhuselwe yigesi ye-helium, efumaneka lula ngelo xesha.Ukusukela malunga no-1952, inkqubo iye yaduma e-UK yokuwelda ialuminiyam isebenzisa i-argon njengegesi ekhuselayo, kunye neentsimbi zekhabhoni zisebenzisa i-CO2.I-CO2 kunye ne-argon-CO2 imixube eyaziwa ngokuba yinkqubo yegesi yensimbi esebenzayo (MAG).I-MIG yenye indlela enomtsalane kwi-MMA, enikezela ngamazinga aphezulu okubekwa kunye nemveliso ephezulu.
Iimpawu zeNkqubo
Ukuwelda kwe-MIG/MAG bubuchule obuguquguqukayo obulungele zombini iphepha elicekethekileyo kunye necandelo elishinyeneyo.I-arc ibethelwa phakathi kwesiphelo se-electrode yocingo kunye ne-workpiece, inyibilika zombini ukwenza i-weld pool.Ucingo lusebenza njengomthombo wobushushu (nge-arc kwincam yocingo) kunye nentsimbi yokuzalisawelding joint.Ucingo lutyiswa ngetyhubhu yoqhagamshelwano yobhedu (i-contact tip) eqhuba i-welding current kwi-wire.Idama le-weld likhuselwe kwi-atmosfera engqongileyo ngerhasi ekhuselayo efakwe ngombhobho ojikeleze ucingo.Ukukhusela igesi ekhethiweyo kuxhomekeke kwizinto ezifakwe kwi-welded kunye nesicelo.Ucingo lutyiswa ukusuka kwi-reel nge-motor drive, kwaye i-welder ihambisa itotshi ye-welding kumgca odibeneyo.Iingcingo zisenokuba qinile (iicingo ezitsaliweyo ezilula), okanye zibe ne-cored (ii-composites ezenziwe kwi-sheath yesinyithi kunye ne-flux engumgubo okanye i-metal filling).Izinto ezisetyenziswayo zidla ngokukhuphisana ngexabiso xa kuthelekiswa nezo zezinye iinkqubo.Inkqubo inika imveliso ephezulu, njengoko ucingo luhlala lutyiswa.
I-Manual MIG / MAG i-welding idla ngokubizwa ngokuba yinkqubo ye-semi-automatic, njengoko isantya sokutya kocingo kunye nobude be-arc bulawulwa ngumthombo wamandla, kodwa isantya sokuhamba kunye nesigxina socingo siphantsi kolawulo lwezandla.Inkqubo inokwenziwa ngoomatshini xa zonke iiparameters zenkqubo zingalawulwa ngokuthe ngqo ngumtshisi, kodwa zisenokufuna ukulungiswa ngesandla ngexesha lokuwelda.Xa kungekho ngenelelo lwesandla olufunekayo ngexesha le-welding, inkqubo ingabhekiswa ngokuzenzekelayo.
Inkqubo ngokuqhelekileyo isebenza ngocingo oluchanekileyo kwaye luqhagamshelwe kumthombo wamandla ohambisa i-voltage eqhubekayo.Ukukhethwa kwedayamitha yocingo (ngokuqhelekileyo phakathi kwe-0.6 kunye ne-1.6mm) kunye nesantya sokutya kweengcingo simisela i-welding current, njengoko isantya sokutshisa i-wire siya kwenza ukulingana kunye nesantya sokutya.
Ixesha lokuposa: Oct-18-2021