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Old 03-16-2007, 07:43 PM
R.B. R.B. is offline
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Join Date: Jan 2003
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R.B.
Default help getting coverage with irregular part

I am having problems with a particular part when I am using my old version copy cad set-up. This is a throttle shaft for a carburetor, and also a picture of a typical successful plating job, which is a fuel inlet nut. So, here is what I am doing... FIrst I am electroplating the part, with a 75 degree solution, and .1 amps / sq inch (with 3amp caswell power supply), plating for about 5-6 minutes or so. Then I dip it in a (non-caswell) acid salt bath for 2 seconds, then rinse, then into a (non-caswell) yellow chromate for 30 seconds with vigorous movement, then into rinse tank, then blow it dry.

I am suspecting that the problem I am having stems from the anodes not "seeing" enough of the part. I have two anodes, 4 inches wide x 6 inches tall (from memory on that), positioned 180 degrees apart. Maybe I need to get more anodes and position them 360 degrees around the part? And from the bottom too?

I included one picture of how I run the wire to hang the part from the copper bar at the top of the tank. I am using really small wire, but it works fine for anything else, just having problems with the irregular shaped stuff.

I am all ears to suggestions. This is the older copy cad kit, and it is a 3 gallon pail size.
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help-getting-coverage-irregular-part-img_1394.jpg   help-getting-coverage-irregular-part-img_1393.jpg  
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