[TheForge] Etching Damascus

[James Binnion]

Hey Roger,

Quenching in acid makes for a nice clean part right away but if you  
have to go back and solder it can leave acid in tiny cracks and  
crevices in the work and cause difficulties with solder flow. It can  
also lead to stress crack corrosion problems in alloys that are  
susceptible to that phenomena.

Jim

On Nov 21, 2006, at 2:24 PM, Roger R Degner wrote:

> The PH minus is what a bunch of use who do copper vases are using  
> as the
> pickle and quench solution for the anneal.
> I think we have Tom Latane' convinced to switch from high strength
> vinegar to the ph minus for his descale soak for his steel work  
> between
> the forging operation and the filing stage.
>
> Roger R Degner
>
> .  They didn't have murriatic acid but they did have sodium bisulfate
> (27% solution) in a product called pH Minus, so I got that.  (They  
> also
> had a 92% powder in a much larger container.)
>
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James Binnion
jbin at well.com