On Dec 3, 16:08, Carlos Murillo-Sanchez wrote:
> Tony Duell wrote:
> > Another warning. There's a stuff called 'silver solder' used by
> > engineers. This is _NOT_ the same stuff at all -- it's high melting
point
> > (you can use it on small steam engine boilers, etc). I'm not sure it
even
> > contains silver.
>
> I believe it does contain silver indeed. It is _very_ expensive.
> And you need acethylene+O2 in order to use it.
Not usually; the whole point of most silver solders is that they have a low
melting point compared to, say, brazing alloys, and can be used with a
butane or propane torch in air.
The cadmium-free ones, though, are used because they don't adversely affect
other materials (eg titanium) and they have rather higher melting points,
similar to brazing alloy or even higher.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Received on Fri Dec 03 1999 - 17:06:06 GMT