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Unread 04-21-2003, 01:20 PM   #9
pelle76
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Join Date: Apr 2003
Location: Sweden, Skovde
Posts: 101
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Golovko:

Yep.. that sounds right. I remember talking about 400 degrees when we looket at copper in metalurgy class (only basics)

Ok... So U say that thermal conductivity increases with the grainsize. Nice to have that settled out.

It will work to heat copper with a acetylene/oxygen torch. I've done it. The copperplate went from rock hard (some spooky alloy) to soft as a kitten .

If I remeber correct... As long as U heat the copper more than say the 400 degrees then there is no upper roof for the temperature. As long as U let it cool at a slow rate U will get big corns???
What I'm trying to say is that one dont have to be so precasious about heating it to much???
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