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.
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