finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
topic 2189

Plating processes for contact pins


(1998)

I am a High School student at Palmyra Area High School who is looking for information about the plating processes for, specifically, contact pins that are used in electrical connectors. My problem is that all of the web sites that I contact about that subject are business sites of companies in that field, not databases of informational websites about that subject. Any information, reccomended web sites, of reccomended literature (as up to date as possible please) would be gladly appreciated

thank you

James M
high school - Palmyra Pennsylvania


I am interested in showing K-12 students how electroplating works. I might be willing to give my talk, Plating4Kids, via the internet, to your science class, gratis. Ask your teacher to contact me.

Regards,

tom pullizzi monitor
Tom Pullizzi
Falls Township,
   Pennsylvania 


(2000)

Contact pads and pins are usually a thin electroplating of hard gold over a thicker electroplating of nickel. Gold is used because it is one of the very few metals that does not tarnish (which would cause an electrically resistive layer). The alternative metals are either not as good as gold, or are more expensive, or are not practically electroplateable.

The nickel is required because gold is metallurgically similar to copper in such a way that if there were not a nickel layer between the gold and the copper that the contact runs are made of, the copper would diffuse into the gold, spoiling it.

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



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

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

Disclaimer: It's 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 & unvetted; 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 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.