Welcome to Boardsortâ„¢ - Learn - Sell - Profit -

Learn to properly Sort, Sell, and Profit from your electronic scrap material.
It is currently Thu Mar 28, 2024 5:40 am


Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Copper Heat sinks
PostPosted: Mon Jan 19, 2015 3:09 pm 

Joined: Fri Jan 16, 2015 1:01 am
Posts: 4
Hi guys,
would these heat sinks be considered 'Clean copper heat sinks' ?

thanks in advance


Attachments:
IMG_4446.JPG
IMG_4446.JPG [ 460.18 KiB | Viewed 3634 times ]
IMG_4445.JPG
IMG_4445.JPG [ 471.96 KiB | Viewed 3634 times ]
IMG_4444.JPG
IMG_4444.JPG [ 483.25 KiB | Viewed 3634 times ]
Top
 Profile  
 
 Post subject: Re: Copper Heat sinks
PostPosted: Mon Jan 19, 2015 6:11 pm 
User avatar

Joined: Sat Feb 22, 2014 11:16 am
Posts: 166
Location: Newell, Iowa
it has an aluminum plate on the bottom so not clean copper. remove the plate and it would be considered clean.


Top
 Profile  
 
 Post subject: Re: Copper Heat sinks
PostPosted: Mon Jan 19, 2015 9:01 pm 

Joined: Thu Jan 01, 2015 8:49 pm
Posts: 16
Check the base with a file before removing I have run into some that were still copper even though they look silver colored, This would be what they cll Tinned or plated. You have to file or hit with a grinder to verify if it is Aluminum Soft and stays Silver color), Stainless (this will stay silver but throw sparks on a grinder), Brass (will be Yellow under the coating) Or Copper (will be Pink under the coating)
That is something you really have to watch. While they give prices for all copper and also Silver coated Brass, I have never seen a silver coated Brass heatsink before. They have always been coated copper and if you say brass then that is what they will pay you which is 35-40% less.


Top
 Profile  
 
 Post subject: Re: Copper Heat sinks
PostPosted: Tue Jan 20, 2015 3:10 pm 
Reputable Seller

Joined: Fri Jan 31, 2014 10:22 am
Posts: 796
I believe silver is not a good material to be used in heatsinks. It's likely that base is aluminum. A Dremel with a cutoff wheel or angle grinder may be your best tool to separate the aluminum from the copper. If you're not selling the heatsink to boardsort, check with your local scrap yards to see how much they will pay for it. If you separate the aluminum and copper, expect #2 copper price. If leaving it as is, you will get aluminum/copper radiator pricing in most places. In some states, you may need to be a licensed A/C technician or have a permit from a licensed A/C tech to be able to get Al/Cu radiator pricing.

_________________
kgryczan
Forum Moderator


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

cron