Owotcherera amagwiritsa ntchito kuwotcherera kwa MIG m'mafakitale ambiri - kupanga, kupanga, kupanga zombo ndi njanji kutchula ochepa. Ngakhale kuti ndizochitika wamba, zimafunikira chisamaliro chatsatanetsatane, ndipo ndizothandiza kudziwa mawu ofunikira okhudzana nawo. Mofanana ndi njira iliyonse, kumvetsetsa bwino, zotsatira zake zimakhala zabwino.
Kuweta mbalame
Kumangirira kwa waya wowotcherera mu mipukutu yoyendetsera mawaya. Izi zimachitika nthawi zambiri ngati waya alibe njira yodyetsera yosalala chifukwa cha liner kukhala lalifupi kwambiri, kukula kolakwika kapena nsonga yomwe imagwiritsidwa ntchito, kapena makonda olakwika pagalimoto. Konzani nkhaniyi podula liner moyenera ndikuwonetsetsa kuti njira ya mawaya ndi yosalala komanso yowongoka momwe mungathere.
Burnback
Zimachitika pamene waya amasungunuka mkati mwa nsonga yolumikizana isanafike pa workpiece. Zimachokera ku kukhudzana kolakwika-tip-to-work distance (CTWD) - mtunda pakati pa mapeto a nsonga ndi zitsulo zoyambira - kapena kuthamanga kwambiri kwa waya (WFS). Zithanso kuyambitsidwa ndi liner yokonzedwa molakwika komanso magawo olakwika. Konzani vutoli powonjezera WFS, kusintha CTWD, kudula liner molingana ndi malingaliro a wopanga ndikusintha magawo a weld.
Deposition rate
Imatanthawuza kuchuluka kwa zitsulo zazitsulo zomwe zimayikidwa mu cholumikizira chowotcherera kwa nthawi yodziwika, yoyezedwa mu mapaundi kapena ma kilogalamu pa ola (lbs/hr kapena kg/hr).
Kusiya
Cholakwika mu kapangidwe ka weld chomwe sichimayika chiopsezo cholephera. Zimasiyana ndi vuto la weld lomwe lingakhudze kukhulupirika kwa weld kamodzi muutumiki.
Ntchito yozungulira
Amatanthauza kuchuluka kwa nthawi mu mphindi 10 mfuti ingagwiritsidwe ntchito pa amperage (arc-on time) osatentha kwambiri kuti musagwire kapena kutenthedwa. Kuzungulira kwamfuti kumakhudzidwa ndi mtundu wa mpweya wotchinga womwe umagwiritsidwa ntchito powotcherera. Mwachitsanzo, mfuti ya MIG ikhoza kuvoteredwa pa 100% yozungulira ntchito ndi 100% CO2 yotchinga mpweya, kutanthauza kuti imatha kuwotcherera mphindi zonse za 10 popanda zovuta; kapena ikhoza kukhala ndi mfuti ya 60% yozungulira ntchito ndi mpweya wosakanikirana.
Electrode yowonjezera
Mtunda wa waya wowotcherera umachokera kumapeto kwa nsonga yolumikizana mpaka pomwe waya amasungunuka. Pamene kuwonjezeka kwa electrode kumawonjezeka, amperage imachepa, zomwe zimachepetsa kulowa kwapakati. Amatchedwanso kuti tip-to-workpiece distance.
Zone yokhudzidwa ndi kutentha
Nthawi zambiri amatchedwa HAZ, ndi gawo la zinthu zoyambira zozungulira chowotcherera zomwe sizinasungunuke koma zidasinthidwa pamlingo wa microstructure chifukwa cha kutentha. Kusweka kutha kuchitika pano.
Kuphatikizika kosakwanira
Zomwe zimatchedwanso kusowa kwa kuphatikizika, zimachitika pamene weld amalephera kuphatikizira kwathunthu ndi zinthu zoyambira kapena chiphaso cham'mbuyo chowotcherera pamipikisano yodutsa. Nthawi zambiri, ndi zotsatira za ngodya yolakwika ya MIG.
Porosity
Kusiya kokhala ngati zibowo komwe kumachitika mpweya ukatsekeredwa mu weld pakulimba kwa dziwe losungunuka. Nthawi zambiri zimayamba chifukwa cha kusatetezedwa bwino kwa gasi kapena kuipitsidwa ndi zinthu zoyambira.
Weld kulowa
Zimatanthawuza mtunda wa ma weld fuse pansi pa zinthu zoyambira. Kulowa kwa weld kosakwanira kumachitika pamene weld sadzaza muzu wa olowa.
Nthawi yotumiza: Jun-03-2017
