Vuammixed shielding gasyog tsim los txhim kho qhov zoo ntawm welds. Cov roj uas xav tau rau cov roj sib xyaw kuj yog cov khoom siv vuam thaiv cov roj xws lioxygen, carbon dioxide, argon, thiab lwm yam. Siv cov roj sib xyaw es tsis txhob siv cov roj ib leeg rau kev tiv thaiv vuam muaj cov txiaj ntsig zoo ntawm kev ua kom zoo dua cov molten droplets, txhawb cov weld smoothness, txhim kho kev sib sau, thiab txo tus nqi ntawm qhov pores, thiab yog nrov heev hauv vuam, txiav thiab lwm yam lag luam.

Tam sim no, feem ntau sivcov pa roj sib xyawtuaj yeem muab faib ua binary mixed gases thiab ternary mixed gases raws li hom sib xyaw gases.

Qhov ratio ntawm txhua yam nyob rau hauv txhua yam ntawmsib xyaw gastuaj yeem sib txawv ntawm ntau yam, uas feem ntau txiav txim siab los ntawm ntau yam xws li cov txheej txheem vuam, cov khoom siv vuam, vuam hlau qauv, thiab lwm yam. Feem ntau hais lus, qhov siab dua qhov yuav tsum tau ua rau vuam zoo, qhov siab dua qhov yuav tsum tau ua rau cov roj ib leeg siv los npaj covsib xyaw gas.

Ob Cheebtsam Sib xyaw Gas

Argon + Oxygen

Ntxiv tus nqi tsim nyogoxygenrau argon tuaj yeem txhim kho qhov ruaj khov ntawm arc thiab ua kom cov molten droplets. Cov pa oxygen combustion-txhawb cov khoom tuaj yeem ua kom cov hlau kub hauv lub pas dej molten, txhawb cov hlau ntws, txo cov vuam tsis xws luag, ua kom cov vuam smoother, thiab ua kom cov vuam ceev thiab txhim kho vuam efficiency. Tsis tas li ntawd, cov pa oxygen + argon shielding gas muaj ntau yam kev siv thiab tuaj yeem siv rau vuam carbon steel, tsis tshua muaj hlau alloy thiab stainless hlau ntawm ntau yam thicknesses.

Argon + Carbon Dioxide

Cov pa roj carbon dioxide tuaj yeem txhim kho lub zog vuam thiab corrosion kuj, tab sis cov pa roj carbon dioxide ntshiab tiv thaiv cov roj tawg ntau dhau, uas tsis haum rau cov neeg ua haujlwm ua haujlwm. Kev sib xyaw nrog argon ruaj khov tuaj yeem txo cov hlau txaws tus nqi zoo. Siv qhov sib txawv ntawm cov pa oxygen + argon shielding gas muaj qhov zoo rau kev vuam carbon steel thiab stainless hlau.

Argon + Hydrogen

Hydrogenyog ib tug txo combustion-txhawb roj uas tsis tau tsuas yog nce arc kub, ceev vuam ceev, thiab tiv thaiv undercutting, tab sis kuj txo qhov tshwm sim ntawm CO pores tsim thiab tiv thaiv vuam tsis xws luag. Nws muaj cov txiaj ntsig zoo heev ntawm cov nickel-based alloys, nickel-tooj ​​liab alloys, thiab stainless hlau.

Peb Cheebtsam Mixed Gas

Argon + Oxygen + Carbon Dioxide

Qhov no yog qhov feem ntau siv peb lub Cheebtsam roj sib tov, uas muaj kev tiv thaiv kev sib xyaw ua ke ntawm cov khoom siv roj sib xyaw saum toj no.Oxygenpab combustion, tuaj yeem kho cov molten droplets, txhim kho weld zoo thiab vuam ceev; carbon dioxide tuaj yeem txhim kho lub zog vuam thiab corrosion kuj, thiab argon tuaj yeem txo qhov tawg. Rau qhov vuam ntawm cov hlau, cov hlau tsis tshua muaj hlau thiab cov hlau tsis muaj steel, cov roj sib xyaw ternary no muaj kev tiv thaiv zoo tshaj plaws.

Argon + Helium + Carbon Dioxide

Heliumtuaj yeem ua kom lub zog hluav taws xob ua kom sov, txhim kho lub pas dej molten fluidity thiab txhawb kev tsim cov vuam. Txawm li cas los xij, vim tias helium yog cov roj tsis muaj zog, nws tsis muaj kev cuam tshuam rau oxidation thiab alloy kub ntawm cov hlau. Yog li ntawd, nws tuaj yeem siv rau cov pa roj carbon steel thiab cov hlau tsis tshua muaj hlau pulse dav hlau arc vuam, cov hlau muaj zog, tshwj xeeb tshaj yog txhua txoj hauj lwm luv luv-circuit hloov vuam, thiab stainless hlau tag nrho txoj hauj lwm luv luv-circuit arc vuam los ntawm kev kho qhov sib txawv proportions.