Pankhani ya kuwotcherera kwa MIG, ndikofunikira kuti owotcherera atsopano ayambe ndi zoyambira kuti akhazikitse maziko olimba kuti apambane. Njirayi nthawi zambiri imakhala yokhululuka, ndikupangitsa kukhala kosavuta kuphunzira kuposa kuwotcherera kwa TIG, mwachitsanzo. Imatha kuwotcherera zitsulo zambiri ndipo, monga njira yodyetsera mosalekeza, imapereka liwiro lalikulu komanso luso kuposa kuwotcherera ndodo.
Pamodzi ndi kuchita, kudziwa zina zofunika kungathandize owotcherera atsopano kumvetsetsa bwino njira yowotcherera ya MIG
Kuwotcherera chitetezo
Kuganizira koyamba kwa ma welder atsopano ndi chitetezo chowotcherera. Ndikofunikira kuwerenga ndikutsata zolemba zonse ndi Maupangiri a Mwini zida mosamala musanayike, kugwiritsa ntchito, kapena kupangira zida zowotcherera. Owotcherera ayenera kuvala zoteteza maso moyenera kuti apewe kuyaka kwa arc ndi spark. Nthawi zonse muzivala magalasi otetezera chitetezo ndi chisoti chowotcherera chomwe chili pamlingo woyenera. Zovala zoyenera zodzitetezera ndizofunikiranso kuti ziteteze khungu ku kugwedezeka kwamagetsi ndi kupsa. Izi zikuphatikizapo:
· Nsapato zachikopa kapena nsapato.
· Magolovu owotcherera achikopa kapena osayaka moto
· Jekete yowotcherera yosagwira moto kapena manja owotcherera
Mpweya wokwanira ndi chinthu chofunikira kwambiri pachitetezo. Owotcherera zitsulo nthawi zonse asamalowe m'mutu mwawo ndikuonetsetsa kuti malo omwe akuwotchera ali ndi mpweya wokwanira. Mtundu wina wa utsi ungafunike. Mfuti zotulutsa fume zomwe zimachotsa mpweya pa arc zimathandizanso, ndipo zimakhala zogwira mtima kwambiri poyerekeza ndi kugwidwa kwapansi kapena padenga.
Njira zosinthira zowotcherera
Kutengera zinthu zoyambira komanso zotchingira gasi, ma welder amatha kuwotcherera m'njira zosiyanasiyana.
Dongosolo lalifupi ndilofala pazida zocheperako ndipo limagwira ntchito pang'onopang'ono wowotcherera komanso kuthamanga kwa waya, motero ndipang'onopang'ono kuposa njira zina. Imakondanso kupanga spatter yomwe imafuna kuyeretsa pambuyo pa weld, koma zonse, ndi njira yosavuta kugwiritsa ntchito.
Kutumiza kwa globular kumagwira ntchito pa liwiro lapamwamba la chakudya cha mawaya ndi ma voliyumu amawotcherera kuposa kagawo kakang'ono ndipo amagwira ntchito yowotcherera ndi waya wopangidwa ndi flux-cored 100% carbon dioxide (CO2) (onani zambiri pa CO2 mu gawo lotsatira). Itha kugwiritsidwa ntchito pazida 1/8-inch komanso zokulirapo. Monga kuwotcherera kwa MIG kwafupipafupi, njira iyi imatulutsa spatter, koma ndi njira yachangu.
Kutumiza kwa Spray kumapereka mawonekedwe osalala, okhazikika, kupangitsa kuti ikhale yosangalatsa kwa ma welder ambiri atsopano. Imagwira ntchito pamawotchi apamwamba komanso ma voltage, motero imathamanga komanso yothandiza. Zimagwira ntchito bwino pazinthu zoyambira zomwe zili 1/8 inchi kapena kupitilira apo.
Kuwotcherera kutchinga gasi
Kuphatikiza pa kuteteza dziwe la weld kuchokera mumlengalenga, mtundu wa mpweya wotchinga womwe umagwiritsidwa ntchito powotcherera MIG umakhudzanso magwiridwe antchito. Kulowa kwa weld, kukhazikika kwa arc ndi zida zamakina zimadalira mpweya woteteza.
Mpweya wowongoka wa carbon dioxide (CO2) umapereka malowedwe ozama kwambiri koma umakhala ndi arc yokhazikika komanso sipatter yambiri. Amagwiritsidwa ntchito powotcherera pafupipafupi MIG. Kuwonjezera argon ku CO2 osakaniza amalola kugwiritsa ntchito kutsitsi kutengerapo zokolola zambiri. Kuchuluka kwa 75% argon ndi 25% ndikofala.
Kupitilira zoyambira
Pamodzi ndi kuchita, kudziwa zina zofunika kungathandize owotcherera atsopano kumvetsetsa bwino njira yowotcherera ya MIG. Ndikofunikiranso kudziwa bwino zida, kuphatikiza mfuti zowotcherera za MIG ndi zowotcherera. Kumvetsetsa momwe mungasankhire ndi kusamalira zida izi kungathandize kwambiri kukhazikitsa magwiridwe antchito abwino, abwino komanso opindulitsa.
Nthawi yotumiza: Apr-04-2021
