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Cleaning tooling???

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  • Cleaning tooling???

    I have a ton of used acme taps I need to clean along with some other stuff.50 y/o cosmoline I can deal with no sweat.It's the film or "shelf" rust that has me baffled.In the past I have blasted it off with walnut hulls,but it is slow.Is there a better way without rounding cutting edges?
    I just need one more tool,just one!

  • #2
    Weird, search this forum for "electro de-rusting"
    Should be a ton of posts.
    All you need is a battery charger and some washing soda.
    Rgds, Lin

    here's one to start you
    http://bbs.homeshopmachinist.net/sho...ight=derusting
    Last edited by Swarf&Sparks; 12-26-2007, 12:59 AM.
    Just got my head together
    now my body's falling apart

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    • #3
      Life-saver

      Originally posted by Swarf&Sparks
      Weird, search this forum for "electro de-rusting"
      Should be a ton of posts.
      All you need is a battery charger and some washing soda.
      Rgds, Lin

      here's one to start you
      http://bbs.homeshopmachinist.net/sho...ight=derusting
      Lin,
      you are a life-saver.

      You must have either an encyclopedic memory or library or both.

      For which I am quite in awe and very pleased about.

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      • #4
        Weirdscience, You might want to try white vinegar as a starting point unless the rust is too heavy. I've used it on smaller items and it helps to heat and agitate the vinegar a bit.

        I've heard or read of using an acid bath to sharpen files (only a few times, then they become hardened shims ). If the bath has a flow, then I'd worry about taking the edge off, otherwise it can have a slight sharpening effect.

        The electrolysis method does seem to be the way to remove bulk rust. There have been some impressive images posted in the past. Here are a few:

        http://bbs.homeshopmachinist.net/sho...t+electrolysis

        Den

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        • #5
          I have had good luck with vinegar (cheapest) and a bettery charger. Then use scotch brite to scrub off the black residue. Dont foreget to oil the tools after.
          re
          Herm Williams

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          • #6
            Try the Vinegar. Find a plastic or glass container that will hold enough vinegar to cover the parts and let them set for as little as a couple of hours to over night depending on how much rust. Remove parts and clean with scotch bright pad under running water then oil. The is no need to use a battery charger.

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            • #7
              Fine steel wool or grey ScotchBrite and penetrating oil works a charm too.
              "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

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              • #8
                Ooops,I should have mentioned electrolisis and vinager,been there done that,it works,but it etches everything even the parts that aren't rusty.
                I just need one more tool,just one!

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                • #9
                  I have used Evapo Rust, and gotten really good results.

                  http://www.evapo-rust.com/

                  You can pick it up locally in small quantities, something like $10 a quart at AutoZone.
                  -Dan S.
                  dans-hobbies.com

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                  • #10
                    I'm a volume user of Evap-O-Rust too! You can find it for ~$32/gallon online, but shipping is not insignificant.
                    Like BadDog and I mentioned here a couple of weeks ago, if you leave the item in the Evapo-Rust too long, it leaves a dull grey finish on the parts.
                    But if you key an eye on the parts, and take them out before they start to dull, it's an amazing transformation.

                    You can see the dull grey finish on these before and after pictures. The guy left the parts in for several days by accident:

                    Before:
                    http://www.sltoa.org/members/massey/...eEvaporust.JPG

                    After:
                    http://www.sltoa.org/members/massey/...rEvaporust.JPG
                    "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

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                    • #11
                      Re: Cleaning tooling???

                      I went to their website, used my zip code (13650) and found that Autozone is a retail distributor. Seems that Autozone is one; I didn't check the industrial distributors....

                      Dave Young

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                      • #12
                        Originally posted by lazlo
                        You can see the dull grey finish on these before and after pictures. The guy left the parts in for several days by accident:
                        Do you know if he washed the parts of after taking them out of the bath?

                        A while back i read the blue/black/grey coating left on a part is caused by the chemical process, and that it is very simillar to bluing.

                        From the pictures it looks like the gentlemen didn't rince of the bolts after soaking them.
                        -Dan S.
                        dans-hobbies.com

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