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topic 3882

Chromium electroplating industry facts for uni project


(1999)

Hello, I am doing some research for a mini-project at uni on the chromium electroplating industry and I need some information on plating baths : what they are, what chemicals are used in them, how long the electroplating process actually takes, etc...I have not been able to find out these basic facts, although there is a lot of really technical stuff on the net. Any help anyone can offer will be greatly appreciated. Thank you.

Bethany Mason
- Bangor, Gwynedd, UK


The conventional bath: Chromic acid (CrO3) 28 oz./gal (U.S.), 0.28 opg sulfate ion (100:1 ratio)
110 degrees F, 100 Amperes/square foot cathode current density, lead anodes, three minutes plate over bright nickel for a few millionths of an inch of decorative plate.

Best wishes,

tom pullizzi monitor
Tom Pullizzi
Falls Township,
   Pennsylvania 


February 26, 2009

Hi, Bethany. You may also find our Chrome Plating FAQ helpful to give you a quick understanding of the different types and applications, and to clarify Tom's reference to nickel plating.

Regards,

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



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