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Unread 04-20-2003, 02:28 PM   #11
pelle76
Cooling Savant
 
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Join Date: Apr 2003
Location: Sweden, Skovde
Posts: 101
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Quote:
Originally posted by hydrogen18
i dont think it would make much of a diff...but if u I would just get harder copper, mill it(or however u plan to do it), then anneal it. If u have a acetelen or oxyacetelene torch this is easy. Heat till it glows red hot then let it cool. The black stuff will flake off due to diff expansion rates and all the other black stuff can be flaked off with a knife. Now u have a layer of cupric oxide over the copper, just use a light hand and some sand paper(cupric oxide is very delicate) and basically just wipe it off.
Yep... I've made this once with a copperplate for my boat. It was some cheezy alloy that was used in a press befor I got hand on it. It was rock hard I tell U. Didn't think copper got that hard ever.
Anywayz... I Ust heated it upp with a nice torch of mine and when it had cooled i smashed it against a doorpost Ust to see if it had made any difference... It dident even 'CLONK', Ust folded itself neatly round the corner
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