another new starter

[londonsean69]

Originally Posted by Spikehaus

The main problem of the machine mart gas was not lasting six min's, just simply not being able to get enough heat into the component. I have refillable bottle of gas that is new an unused. It holds 4 x the disposables. If you need one I will ask South West Welding Supplies to get you one. I paid £40. on let 60 I think? Hope it helps

A lot of the small disposable bottles of gas only hold 60L of gas. CO2 is measured in grams, but CO2/AR mix and Ar are measured in litres. The "big" bottles they sell hold 110 litres.

At a flow rate of 10L/min the small bottles will last 6 minutes or so. Which is, scarily enough, about a metre of weld.

I'm not sure the MM gas gives problems getting heat into a weld, I have welded plenty of stuff with disposible bottles, it's just they are VERY uneconomical.

And I have used a gasless MIG as well. The weld pool is pants but at least gasless meant I was able to weld some gates outside, in Lanzarote (very breezy).

If I were to weld outside now I would still use my gas mig, just crank up the flow rate (20l/min is cool when you have a 47L bottle)

Sean