Originally Posted by
gungatim
isn't there some kind of liquid in the copper tube for heat transfer? I tried getting one apart and couldn't get the Al off completely so I just chucked it in a mixed bucket, but I wonder if it's worth going after clean Cu?
If you heat it enough the solder will flow and allow you to separate the Al from the Cu.
THIS IS THE IMPORTANT BIT: CUT THE CU TUBING BEFORE YOU HEAT IT UP.
If you don't cut the tubing before heating it you will hear what sounds like a .22 round going off up close. There is air in the tubing which included what ever the amount of humidity was in the air the day it was manufactured.
If you are lucky like me all that will happen is you get startled, it could be seriously dangerous. Mike
HipoGear 
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