Uyimisa kanjani i-weldamashubhu ensimbi

Ukushisela i-MIG kanye negesi njengento ephakathi nendawo ukuze kuvikelwe i-droplet yensimbi, ukushisela ichibi elincibilikisiwe lensimbi ye-arc indlela yokushisela kanye nendawo yokushisela, ebizwa nge-MIG arc welding.Ngentambo eqinile ewumgogodla wegesi engasebenzi (Ar noma He) indlela yokushisela i-arc evikelekile ebizwa ngokuthi ukuncibilika kwegesi encibilikayo yokushisela.Ukushisela kwe-MIG ngaphezu kokusebenzisa intambo yensimbi esikhundleni sokushisela ithoshi le-tungsten electrode ngaphandle.Okunye kanye nokushisela kwe-TIG.Ngakho-ke, i-welding wire yenziwa ngokuncibilika kwe-arc endaweni yokushisela.I-roller yokushayela kagesi ngokuya ngentambo yokushisela esuka ku-spool edingekayo iye kwithoshi yokushisela.Umthombo wokushisa we-arc kagesi we-Dc, kodwa i-polarity ne-TIG welding isetshenziselwa okuphambene.Igesi elivikelayo lihlukile futhi lifuna ukujoyina igesi ye-argon ukuze libe yi-1% oksijini ukuze kuthuthukiswe ukuzinza kwe-arc.

I-MIG welding ingasetshenziswa i-semi-automatic noma i-othomathikhi, ububanzi bezinhlelo zokusebenza.Ukushisela kwe-MIG kungakwazi ukushisela izinto ezihlukahlukene, kodwa eminyakeni yamuva nje ngenxa ye-carbon nensimbi ephansi ye-alloy, futhi ngaphezulu kusetshenziswa i-argon-rich hybrid GMAW welding, kanye nokushisela igesi ye-inert engavamile, igesi ye-inert yensimbi, ngakho-ke, ukushisela kuvame ukusetshenziswa. yokushisela i-aluminium, i-magnesium, ithusi, i-titanium nama-alloys ayo nensimbi engagqwali.Ukushisela kwe-MIG kungashisela ukushuba okuhlukahlukene kwe-workpiece, kodwa ukukhiqizwa kwangempela ngokuvamile kuwukushisela ipuleti elincanyana, njengokujiya kweshidi 2mm ngezansi kusetshenziswa ukushisela igesi ye-inert yensimbi kangcono.I-MIG welding ingafinyelela ukulawula okuhlakaniphile kwakho konke ukushisela isikhundla.

I-MIG welding ine-semi-automatic ne-automatic modes.I-Automatic MIG welding iyasebenza emithethweni ye-longitudinal seam, i-girth kanye nesimo esivundlile se-welding;Ukushisela okufushane kwe-MIG okufushane kusetshenziselwa kakhulu ukushisela i-tack, i-weld discontinuous welding kanye nekhanda lesitsha se-aluminium, ukuhlangana kwepayipi nokuqinisa ukushisela indandatho yokushisela.Kanye nokwandiswa kwezicelo zokushisela ze-MIG, kuphela ngu-Ar noma Nguye onzima ukuhlangabezana nesidingo sokuvikela igesi, ngaleyo ndlela ithuthukiswe ngegesi ye-inert ukujoyina inani elincane lamagesi asebenzayo njenge-oxygen, i-carbon dioxide gas ingxube njengegesi evikelayo.Okuvame ukubizwa nge-melt reactive gas, welding noma MAG.Esakhiweni sokushisela sokukhiqiza, ikakhulukazi ku-alloy ephezulu nezinsimbi ezingenayo insimbi kanye nama-alloys azo ekukhiqizeni ukushisela, ukushisela kwe-MIG kuthatha isikhundla esibaluleke kakhulu.