[BC] brazing

[Milton R. Holladay Jr.]

15%,10%, 7%, 5%, or even 0% silver, Sta-silv, Sil-phos, or whatever other
name it may go by, the flattened rods used by AC techs and plumbers, all
work fine, no flux required or needed, as long as there is no encrusted
stuff on the copper; a carburizing flame will remove the
tarnish.............
The toughest thing that I've attached to is galvanized steel. Usually, it
works to use a BIG torch and flow some brass rod onto/into the surface and
silver solder the copper to that..........
M
----- Original Message ----- 
From: "Clive Warner" <clive at citiria.com>
To: <broadcast at radiolists.net>
Sent: Friday, May 20, 2005 9:12 PM
Subject: [BC] brazing


> >I've brazed more #10 to .030 x 4" copper than I want to think about and
> have
> >always used bronze rod and a flux can. I've never needed a heat spreader
> for
> >that, just a careful touch with the torch and good heat control - plus a
> >calm day helps.
>
> - Brazing with bronze? Isn't that too close to the melting point of
copper?
> I have always made joints using silver solder and the appropriate flux.
> Of course it is more expensive, but the job will be out there a long
time..
> Clive
>
>
>
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