Argon vuam siv lub argon raws li kev tiv thaiv roj vuam txheej txheem, kuj hu ua argon roj vuam.Ntawd yog, nyob ib ncig ntawm lub arc ntawm argon roj los ntawm cov huab cua cais tawm ntawm thaj chaw vuam, tiv thaiv oxidation ntawm thaj chaw vuam.

Argon welding txheej txheem yog raws li lub hauv paus ntsiab lus ntawm arc vuam siv argon rau hlau vuam consumables, welding consumables los ntawm siab tam sim no yuav tsum tau welded rau ib tug substrate los ua ib tug kua yaj rau hauv lub pas dej ua ke, ua welded hlau thiab welding ib tug welding khoom mus cuag metallurgical. Cov txheej txheem kev sib txuas, cov molten solder ntawm qhov kub siab hauv cov roj argon tsis tu ncua, tsis ua rau cov khoom siv vuam thiab cov cua nyob rau hauv kev sib cuag nrog oxygen, yog li tiv thaiv oxidation ntawm cov khoom siv vuam, vuam tuaj yeem yog cov hlau tsis muaj hlau, hlau-raws li hlau. kho vajtse.

Raws li qhov sib txawv vuam electrodes, nws tuaj yeem muab faib ua MIG thiab TIG ob hom tsis siv hluav taws xob.

Tsis yog-MIG ua hauj lwm hauv paus ntsiab lus thiab cov yam ntxwv: non-TIG welding yog ib qho arc nyob rau hauv ib tug uas tsis yog-consumable electrode (feem ntau tungsten) thiab lub workpiece hlawv nyob ib ncig ntawm lub vuam arc thiab hlau tsis ntws los ntawm cov tshuaj tiv thaiv inert gas (feem ntau argon), qhov tsim ntawm lub hood tiv thaiv, qhov kawg ntawm tungsten, thiab lub pas dej ua ke ntawm cov kub kub hlau arc nyob ib ncig ntawm lub tshav kub cuam tshuam cheeb tsam yog tsis nyob rau hauv kev sib cuag nrog huab cua, tiv thaiv oxidation thiab nqus cov pa phem.Welded pob qij txha los tsim ib tug ntom, zoo heev mechanical zog.

MIG ua hauj lwm hauv paus ntsiab lus thiab nta: hlau pub los ntawm cov hlau log, tip conductivity ntawm lub hauv paus hlau thiab vuam arc, thiaj li hais tias cov hlau thiab puag hlau melted thiab inert roj argon arc thiab molten hlau rau welded.Nws GTAW qhov txawv: ib qho yog ua kom cov hlau electrode, thiab tas li sau cov da dej melts, sib sau ua ib qho weld tom qab condensation;Lwm qhov yog siv cov roj tiv thaiv, nrog rau MIG cov kev siv thev naus laus zis, kev tiv thaiv argon roj los ntawm ib qho roj sib tov tsim muaj ntau yam kev siv, xws li melting thaum hu ua argon los yog helium raws li ib tug shielding gas inert gas shielded arc vuam (MIG thoob ntiaj teb hu ua. vuam);Inert gas Thaum cov oxidizing gases (O2, CO2) roj thaum sib xyaw shielding gas, los yog CO2 los yog CO2 + O2 roj sib tov rau kev tiv thaiv roj, hu ua hlau active gas shielded arc vuam (xa mus rau lub thoob ntiaj teb MAG vuam).Saib nws hom kev ua haujlwm, tam sim no yog siv ntau tshaj plaws thiab semi-automatic MIG vuam argon-nplua nuj roj sib tov, ua raws li tsis siv neeg MIG.