Thread: Gas volume calculator

Hi, that sounds about right.
Kryn

Thanks man. I could expect about 5 hours from this size bottle?

Quote I've always been told thickness of wire x10. So 0.8mm wire = 8l gas/min, 0.6 = 6l/min etc. - which seem s to work well enough. Unquote

Link http://www.mig-welding.co.uk/forum/s...ad.php?t=32882

Yep 2.2m3 = 2,200 litres.
TIG welding will typically use between 6 and 12 lpm depending on cup size, how sensitive the metal is, etc. I typically use 8 lpm, that that means your cylinder would last me 2,200/8 = 275 minutes, or about 4.5 hours. When you factor in pre/post flow, gas purge or any other use, you might only have 3 to 4 hours of actual arc time.

Thanks again fellas. I thought my math skills weren't too shabby.

Originally Posted by distractor

Thanks again fellas. I thought my math skills weren't too shabby.

Nice to know your parents didn't waste money on your ejubacation.
Cheekily
Kryn

Originally Posted by crash486

Quote I've always been told thickness of wire x10. So 0.8mm wire = 8l gas/min, 0.6 = 6l/min etc. - which seem s to work well enough. Unquote

Link Flow rate for MIG - MIG Welding Forum

so my 3.2 ally rods should need 32L/m
10x wire dia. would be minimum MIG flow rates, Tig is a little lower

Originally Posted by WelderMick

Yep 2.2m3 = 2,200 litres.
TIG welding will typically use between 6 and 12 lpm depending on cup size, how sensitive the metal is, etc. I typically use 8 lpm, that that means your cylinder would last me 2,200/8 = 275 minutes, or about 4.5 hours. When you factor in pre/post flow, gas purge or any other use, you might only have 3 to 4 hours of actual arc time.

Does anyone have any experience with the Air liquide mini top oxy/acetylene cylinders? - when I went to tech we were taught to use (from memory) 5 p.s.i. of acetylene and 14 p.s.i. of oxy when welding panel steel -the regulators on the Minitops are apparently graduated in litres/min. and they have no delivery pressure gauge - Air liquide at this stage haven't been very helpful so can anyone advise me how to set my regulators in l/m to weld panel steel?