There is solder made especially for aluminum, but the real secret is excluding
oxygen during the process, a function performed by the "flux" in the alumnimum
solder. I have heard, but not tried, that you can solder aluminum using
conventional soft solder if you cover it with a suitable oil while you solder.
(something that doesn't break down at solder temperatures, that is).
John Petrich wrote:
>
> All,
>
> Can anyone recommend a method to solder aluminum to aluminum and copper
> to aluminum? Am experimenting with a new antenna.
>
> Once I successfully soldered brass mesh over a vent hole in an aluminum
> chassis for a high power UHF amplifier. Cannot recall how I did that. Am
> interested in a soldering method that will improve the electrical
> conductivity of the connections over and above that possible using the usual
> clamping methods.
>
> Regards,
>
> John Petrich, W7FU
>
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