Tilt on Argon Mix bottle

[BBackSoon]

My recycled Welder cart is actually a gas bottle dolly. You lift the cart to load the bottle and then lay it back on the wheels to roll it around. It holds the bottle at around a 45-degree angle. I welded a bracket to the bottom and it holds my mig on the bottom with the bottle at the angle. Is there any problem with this?

I used to have the bottle chained to the wall before this cart and have not seen any change in performance since I moved it to the cart.

[Guest]

Leaning a tank of Argon or C25 is no problem....it's acetylene you don't want to lean.

[enlpck]

No problem. The only time there is a problem is when there is liquid involved, which would be a liquid CO2, liquid O2, acetylene (the acetylene is dissolved in acetone), etc.

[hankj]

There's been discussion on gas/CO² mixes, but I have never had any difficulty with my C-25. There is a belief that the CO² can return to liquid state under the right conditions, but I haven't had it happen to me yet!

Certainly, 45° is no problem!

Hank

[BBackSoon]

Man, am I glad to hear that. I may even have to post a picture of my recycled welder cart now.

[enlpck]

There is a belief that the CO² can return to liquid state under the right conditions, but I haven't had it happen to me yet!

For the CO2 to go to liquid requires temperatures lower than most people are ever going to see while welding. Even in the parts of Canada or Alaska where the temp drops to this point, I doubt it is often an issue, as anywhere where the mix is critical, the gas supply won't be that cold.

What temp?

From the phase diagram (http://scifun.chem.wisc.edu/chemweek...se_diagram.gif) we see that at 35ATM (approx 500PSI, approx the partial pressure of CO2 in a full bottle of C25 at -10 deg C), the temp needs to be about -10 deg C (about 10F) for liquid to begin to form. Liquification would stop as soon as the partial pressure of the CO2 drops. As the pressure in the bottle drops during use, the temperature also drops fairly rapidly.

[TozziWelding]

ALL my tanks, eccept for CO2, and LP are almost horizontal. No problems, and everything is honky dory. I have frozen CO2 and LP tanks running dualshield, and a big rosebud/scrap tip. Mixed gas is just that gas, no liquid, dont worry about it.