Printable View
Pulled these out of old Dell servers. The "copper" colored ones I presume are copper. What about the "stainless" ones? They look the same as the copper, I weighed them in my hand and they seem to be about the same weight. So copper too? I just thought that copper has always the same color.
http://i941.photobucket.com/albums/a...ps4af9de52.jpg
take a file to each one of them. should tell ya real quick if they are copper or aluminum
deep file test to expose base metals if plated
edit : aced again !
The ones that don't look like copper, but feel the same are plated. I think it is nickel or something along those lines. I always flip my stand grinder on and buff a little off so the scrap yard can see that they are indeed copper.
As your taking them apart the ones that feel the same just runn a screwdriver across it with a little pressure and you can see the copper quick and easy.
or sell them on ebay I get $5-10each for them all day long
The different colors is called "anodizing"
http://www.anodizing.org/Anodizing/w...anodizing.html
Check out these 3 I pulled two weeks ago from a projection tv
http://i1222.photobucket.com/albums/...4-30182538.jpg
nice :)Quote:
Originally Posted by cummins
The silver ones are copper with aluminum fins soldered with silver solder. Heat with a torch and knock the fins out. The other one is pure copper, but they use silver solder to hold the copper fins to the base. So goes as number 2.
The ones that are silver colored are copper base and the fins are stainless steel unless they came out with aluminum that sparks when hit with a grinder.