[remy_martian]

I was saying it should be directed into the contact area. Merely blasting it into a coolant inlet I'm not sure will do much to deter/quench a plasma/arc as it initiates. The cooling is a secondary benefit.

 

[piotrsko]

Misunderstood the arc quench aspect then. I thought flooding the entire area with semi-liquid C02 would accomplish that.

 

[remy_martian]

Might...

But the main reason for adding CO2 to Argon for MiG is conductivity, isn't it?