One advantage of air-cooled GTAW torches is continuous operation without overheating.
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Q7: _ torches have three hoses connecting to
Q8: High gas flow rates waste shielding gases.
Q9: The cleaning action by electrons leaving the
Q10: Cerium oxide (CeO2) is added to tungsten
Q11: Argon and helium are noble inert gases.
Q13: Preflow is the time during which gas
Q14: Nitrogen is used to increase surface tension
Q15: The gas tungsten arc welding (GTAW) process
Q16: The advantages of water-cooled torches make them
Q17: GTA welding is efficient for welding metals
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