Sometimes the choice of protective gas contradicts these factors. When choosing welding shielding gas, we must focus on cost, quality, productivity and other factors. So when implementing flux-cored wire gas shielded welding, which shielding gas should be chosen, CO2 or Ar/CO2 mixed gas? Each type of shielding gas has its own advantages and disadvantages. FCAW-G welding process often uses 100% pure CO2 or 75%~80% Ar and 20%~25% CO2 mixed gas as shielding gas. It is widely used in the welding of low carbon steel, low alloy steel and other various alloy materials in heavy manufacturing, construction, shipbuilding, offshore facilities and other industries. Flux-cored wire gas shielded welding (FCAW-G for short) is a very widely used welding process.
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