[TowerTalk] Silver Solder

[Jim Lux]

On 8/7/15 4:15 PM, Paul Christensen wrote:

> After using oxy-acetylene (O2A) at the suggestion of a few list members,
> I would never again use either of the other gas types alone.  Once the
> acetylene valve is brought up to pressure and gas ignited, the O2 valve
> is then slowly turned to mix with acetylene to obtain a perfect blue
> cone; all other color and gas emission disappears.  It's an interesting
> experience to see for the first time.  With O2A, you can braze the
> silver bars with zero difficulty, even in a high heat-sink application.

No kidding.. there's a reason oxy-acetylene is popular.  Easy to adjust 
the flame, no soot (with an excess of oxygen), lots of heat. I totally 
agree. (and of course, a cutting torch is fun...fireworks in your hand)

I've always wanted to try oxy-hydrogen, but haven't had the chance. 
totally invisible flame, though.