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Cleaning aluminum heatsinks

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    scrappy888 started this thread.
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    Cleaning aluminum heatsinks

    Over the past 2 years or so, I have collected 4 55 gallon drums of these...everything out of tvs, cpus, monitors, power supplies, etc..to be honest I feel disappointed from a short breakdown period..i jist zpent two hours doing the cleaning n feel unsatisfied..ive done thiz in my spare time before, but the work now jist doesnt satisfy me after this breakdown..




    Should I just sell as dirty ali???.. thx


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    scrappy888 started this thread.
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    Fyi..i do this as a hobby, but have plenty of other stuff goin on..itz all about maximizing profits, bur I dont wana waste time..

    Who else cleans their ali??

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  4. #3
    Mechanic688's Avatar
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    Quote Originally Posted by scrappy888 View Post
    Fyi..i do this as a hobby, but have plenty of other stuff goin on..itz all about maximizing profits, bur I dont wana waste time..

    Who else cleans their ali??
    If you mean stripping off the transistors/chips fastened to them, and pins holding them to the boards, then yes I do. For extruded I get .70 now compared to about.25-.35 for dirty.
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    BRASSCATCHER's Avatar
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    Why not clean them up before putting in the barrels? I always clean all my extruded.
    I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-- The Shootist

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    I clean mine and get .65 per pound for extruded. The tiny ones I don't bother with and they go in a different bucket. If you get any that feel heavier than normal, grind the bottom a bit to make sure they are not Aluminum coated Copper.

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    little726's Avatar
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    I always take the nuts and bolts out my heatsinks.

    Thanks for the tip about the heatsinks being copper!
    Last edited by little726; 02-16-2013 at 10:46 AM.

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  11. #7
    greytruck's Avatar
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    I leave mine on the work bench untill there are to many so im forced to clean them before they get put away in the tote

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    same here I clean them before putting away for awhile at least till 500lbs to get a good check and ya extru price is a little lower here but still worth it

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    scrappy888 started this thread.
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    I think im going to just do a bucket here n there..i used to do a few now n then, but I got lazy n just started throwing all of my ali into the drums to get going on other stuff..

    Now im just overwhelmed with it all..since aluminum is so light, I have yet to bring anything but cans in..

    At least I have something to keep me busy..Time to drink some beer n prep some aluminum..thx

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    Aluminum may be light by the piece but so is paper....it all adds up though, pick up a stack of phone books if you doubt me.
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    I just use soap and water...gets cleaned up real nice!



    Sirscrapalot - Just kidding...or am i...

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    a small job today ends up being a huge job tomorrow

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    Quote Originally Posted by Sirscrapalot View Post
    I just use soap and water...gets cleaned up real nice!



    Sirscrapalot - Just kidding...or am i...
    And do you use a pot scrubber on your bare bright to keep it shiny.???

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    Don't go telling all my secrets now Mech.

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    Super easy way to clean heat sinks is by soaking them in a lye solution, doesn't have real strong, it strips them clean. Just make sure if you do, that you read about all the safety precautions in using lye first and use gloves, safety goggles/eye glasses, and keep some vinegar handy in case you need to neutralize the lye solution.

    Scott
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    Noble most of us don't want that "clean" of aluminum just getting rid of plastic/ferrous materials is good enough for us.

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    I have been putting my Ali heatsinks with transistors aside, but sorting them into extruded & sheet Ali first.

    The copper on a transistor back is worth about 2 cents, just my 2 cents.
    They all get put into one container, in which it will get burnt off one day, & cement mixer rumble to sort the copper & the carbon dust apart. Then tru a microwave door sieve. Coppers $7 a kg here.

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    A lye solution will not only turn your anodized Al into bright shiny Al, but it will eat off any glue or organic material as well. Not to mention the fact it will make it sterile and safe to handle if it's been associated with garbage, etc.

    I realize most are not looking to get the Al heat sinks, etc, that clean, but some yards do pay less if the Al is anodized.

    Anyway, if that is the case this method might help.

    Scott

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    Remember, the ERP system should be simple and straightforward. All you need is to define the requirements for a commercial cleaning business managemart software and choose the system that best suits them. Without unnecessary functionality, which only hinders users and increases the cost. This solution is easier to implement and easier to train employees. So everyone will understand the benefits of ERP.

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    9 out of 10 times your better off selling as is if you do the math if you cant clear $35+ per hour cleaning metal after you figure in tool or supply costs it just aint worth it

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