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Re: Light-duty oxy-gas setup?

To: Roland Wilhelmy <rwil@sbcglobal.net>
Subject: Re: Light-duty oxy-gas setup?
From: Doug Braun <doug@dougbraun.com>
Date: Thu, 30 Mar 2006 20:14:12 -0800 (PST)
Well, the neutral flame thing turned out to
be pretty obvious, once I knew what to look for.

Do you have any tips on how to tell if the overall
gas flow is correct for the size tip you are using?

Thanks,
Doug


--- Roland Wilhelmy <rwil@sbcglobal.net> wrote:

> getting the gauge pressures set low enough to have a
> usable neutral
> flame is important, and then adjusting the
> combination of O and
> acetylene for a neutral flame (just enough oxygen to
> eliminate the
> 'feather' at the tip of the flame; more O will give
> you an oxidizing
> flame that is fine for cutting but bad for welding).
>  You might start
> at 5 psi each and tweak to the point where you have
> a good point on
> your flame with both torch valves opened wide.  Get
> a hunk of 3/16" or
> 1/4" steel scrap and make a puddle of molten steel
> on it with your
> torch.  Then move the puddle along, writing your
> name on the steel
> with a trail of puddled steel.  Good practice.  Then
> try welding two
> hunks of 3/16" or 1/4" steel together (you need
> filler rod for this).
> After you get a strong joint (try bending it in the
> vise), then go to
> 1/16" steel and do the same.  After that you will be
> ready for sheet
> metal.  have fun.
> 
> -Roland




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