Announcement

Collapse
No announcement yet.

Best Way To Prep & Plate Nuts & Bolts

Collapse
This is a sticky topic.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • seanc
    replied
    Re: Best way to prep & plate nuts&bolts

    Pictures link to larger images.

    I've done the plastic bead thing too. It works good for small batches of parts.



    Wiring up bolts individually is a royal pain though, so I tried a spring "rack", and IT works good too.



    See next post. Forum won't let me post more than 2 photos per message.
    Last edited by seanc; 01-26-2009, 08:19 AM.

    Leave a comment:


  • fxstcguy98
    replied
    Re: Best way to prep & plate nuts&bolts

    I've tried the basket thing too and it sucked, hard to rinse too. I know you are doing copy cad and this doesn't apply, but the shaker basket isn't worth a **** in the nickel because you temp loose connection with the part and it wont plate well. When I do nuts and bolts, I thread the nuts on a wire with plastic beads in between each one. Bolts, I take a long piece of wire, and wrap once around each bolt on the threaded area usually alternating the direction of the heads for balance. When I'm finished it looks like a string of popcorn.

    Leave a comment:


  • seanc
    replied
    Re: Best way to prep & plate nuts&bolts

    I've been down the road you're thinking of, maybe my experience can send you in a better direction. There's a few reasons why a dipping basket like you're thinking of aren't suitable.

    1) They have HUGE amounts of surface area which you have to include in your current calculations. If it's the one I think at McMasters (#32525K35 ?), I roughly calculate that basket at @ 145 sq-in.! The basket alone will need 7-14 amps!

    2) the walls of the basket are going to draw the majority of the plating current, and will in effect, shield the parts inside the basket. They won't plate well unless the current has a free path to them.

    3) since you're plating the basket along with the parts it contains, you waste a lot of anode on it! (as well as excess electricity).

    I first tried what you're thinking of too. See my "shaker" basket prototype

    That tiny little 3 x 5 piece of screen mesh was 22 sq-in!

    It worked well enough as a "shaker", if the parts were able to shift around easily, but bolts tend to "lock up" against each other and it's difficult to get them tumbled about adequately. That's why I attempted to build a rotating barrel to auto-tumble the parts.

    Sean
    Last edited by seanc; 01-26-2009, 08:17 AM.

    Leave a comment:


  • dweymer
    replied
    Re: Best way to prep & plate nuts&bolts

    ZERO labor is the key word. I hadn't thought of a tumbler, harbor freight here I come!!

    I got a steel basket from mcmaster carr($12) and hope it will work by just dumping them in and mixing them a few times during the process.

    Leave a comment:


  • seanc
    replied
    Re: Best way to prep & plate nuts&bolts

    Whatever it takes to get them squeaky clean and down to bare base metal.

    To do the initial clean/degrease/remove paint, etc. I use bulk carburetor cleaner, the kind that comes in a gallon can (or larger) and includes a dipping basket.

    For derusting, I use a vibratory tumbler w/rust cutting media. It takes a while, 12-36 hours, depending on how rusty the parts are, but there's ZERO manual labor involved , and the parts come out great. If there's tight spots that the tumbling doesn't get in to, then beadblasting gets the rest of it.

    For heavily rusted, or large items, I use electrolysis, with washing soda. Works great.

    An acid pickle, just before plating, takes care of any minute rust.

    When it comes to plating the parts, I've devised a crude "plating barrel". It needs improvement still, and a motor to make it "plug-n-play", but it works and is a lot faster/easier than trying to wire up hundreds of individual parts:

    DIY plating Barrel

    Sean
    Last edited by seanc; 01-26-2009, 08:15 AM.

    Leave a comment:


  • dweymer
    started a topic Best Way To Prep & Plate Nuts & Bolts

    Best Way To Prep & Plate Nuts & Bolts

    What is the best(fastest with good results) way to prep a lot(50+) of nuts and bolts for plating?

    Also, what is the best way to plate them?

    This is for CopyCad.
Working...
X