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
|