To anneal (soften) copper, heat to a dull red & let cool. Doubt if you
can get it hot enough in the oven. Range burners or a torch or both may
be needed if the part is large. Obviously, don't get it hotter than dull
red or it will melt. Doesn't matter whether it air cools or is quenched,
it comes out the same. Quenching in water will remove most of the black
oxide coating if this matters. Or you can clean it up with steel wool.
Copper can only be hardened by work hardening.
> I'm posting this for a friend. Please let me know if you have any info, or
> write driectly to chuck.
> Allen Hefner
> - - - - - - - - - - - - - - -
> "ok engineer types! afterheating the copper gasket should it air dry? oil
> quench or water quench?
> to get a used copper gasket to swell and soften up for reuse?
> i can not rememberand i have one here that is going in the oven tomorrow!"
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