> > > > > >
> > > > I have a bottle of Argoshield Heavy shielding gas. I thought it was > > pure
> > > > Argon when I got it, but after trying to weld Aluminium with an ac dc
> > TIG
> > > > welder I found that it won't weld with this gas. It seems to weld mild
> > > > steel but leaves a yellow like sooty coating on it.
> > > >
> > > > Bearing in mind that I am using TIG welder, what metals/useses is this
> > gas
> > > > suitable for welding with a TIG?
> > > >
> > > > Any help welcome,
> > > > sniffer
> > > >
> > > >
> > >
> > > PRODUCT IDENTIFICATION
> > > Product Name Shielding Gases
> > > Chemical Formula CO2 plus O2 plus Ar.
> > > Trade Name Argoshield Heavy
> > >
> > >
> > > What you have there is an Oxygen Trimix.
> > > Best used for MIG welding of stainless steel, but it will work for MIG
> > > welding steel as well and should give a really hot arc.
> > > It would work for Spray process steel pretty well.
> > >
> > > YOU CAN NOT TIG WELD WITH THIS GAS.
> > >
> > > It can only be used for MIG.
> >
> > Thanks Ernie, you know the answers to everything.
> >
> > I did get it to TIG weld mild steel. I noticed it was a very hot weld and
> > welded about 3 to 4 times faster than with pure Argon for the same amps, and
> > the gas flow was set to less than half of what it would be for pure Argon.
> > It did fiz a little though and always left a little pool hole at the end of
> > the weld beed. I'm assuming it's the 02 content that is producing all the
> > extra heat by burning the metal (fizzing a bit) as a fuel.
> >
> > Do you happen to know what the gases proportions are mixed at?
> > What is the Spray process?
> > Is there anything else other than MIG welding I can use this gas for? (I
> > can get it real cheap).
> >
> > Thanks,
> > sniffer.
> >
>
> The CO2 would be just as bad for the arc.
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