I need a copper washer. So, I've got a box of new ones of various sizes. All
the wrong sizes.
I've got a box of sundry old flat washers amongst which is an old copper
washer of the right size. But it's old and has presumably ceased being soft
and malleable.
I'm not even sure that I can even spell "annealing" at this time of night,
but isn't it the process by which one applies heat to restore metal's
previous malleability? Do I heat it cherry red and then quench it in water
or is it oil or what?
It's a lot to ask for one copper washer, but a)my daughter* pinches my daily
tintop to go to work so I can't go and buy one and b) I like to know these
things.
*If she can't use my car, she can't earn enough to buy her own car! I'm
going to pay half, but she's got to learn!
Simon
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