[TowerTalk] Silver Solder

[Roger (K8RI) on TT]

Using Oxy-Hydrogen is little different than Oxy-Acetylene except for the 
cost, invisible flame and lower flame temp.  It takes a lot of H2 to get 
the BTUs required and no real reason to use it.  I used it for welding 
glass where we didn't want any other elements added.  IE: for purity.

73

Roger  (K8RI)



On 8/7/2015 11:00 PM, Jim Lux wrote:
> 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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-- 

73

Roger (K8RI)


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