-- The Home Page of the Finishing Industry
HomeFAQsBooksHelpWantedsForum letter 1661
Serious Education ... plus the most fun you can have in metal finishing.

Electroplating small parts


I want to know the best system to electroplating screws, nuts and small parts under zinc plating.

Is the cyanide system better than acid system?

Julio TÈllez PÈrez
MÈxico, DF


Cyanide systems are easier to operate, require less critical control, and offer better throwing power. Acid systems are less dangerous, more environmentally benign, and can plate directly on cast iron and high carbon steels whereas cyanide can't.

To cut to the chase, cyanide is still quite widely used on rack lines, but I get around a lot and haven't seen a cyanide barrel line in a few years now. Since screws, nuts, and small parts are barrel plated, where throwing power isn't critical, and where high carbon parts could be encountered, this is a pretty easy call: acid.

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

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It is not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2017     -    Privacy Policy
How Google uses data when you visit this site.