Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Chime right in! (no registration req'd)

-----

"What can I plate over aluminum?"



2005

What can I plate over aluminum, conducts electricity, has corrosion resistance for 50 yrs, and is cheap?

This is for an electronic box that need to press against other things and make electrical contact. We don't want the electrical contact to go bad after a while.

The box sits in a factory. 0 to 70C. There could be moisture in the air. No acid in the air.

Electroless nickel?

George Weinstein
- Cambridge, Massachusetts
^


2005

1- Electroless nickel(EN). Yes (preferably high
phosphorous over 10-12% EN).
2- 50 years. Not very likely (20 perhaps), but we all may
be dead by then so what the heck.
3- Cheap. It depends. If you compare it against gold that
could last that long, it certainly is cheap.

Guillermo Marrufo
Monterrey, NL, Mexico
^


2005

What about yellow chromate? How will that hold up over time?

George Weinstein
- Cambridge, Massachusetts
^


2005

Poor conductor. Limited corrosion resistance. Limited life.

Guillermo Marrufo
Monterrey, NL, Mexico
^


2005

Dear Mr. Marrufo,

1) Where can I get data on corrosion resistance and conductor resistance (ohms) for both chromate and the different kinds of nickel plating?

2) Ideally, a table showing several options in columns and in the rows: corrosion resistance, electrical conductor, approx. relative price. Where on the web would one possibly find that?

3) How is corrosion resistance quantatively specified?

4) How is condoctor resistance quantatatively specified?

5) Is there a place on the internet that shows relative price for a variety of options?

We are working in an extruded AL box.

George Weinstein
- Cambridge, Massachusetts
^

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start NEW Thread

Disclaimer: It's not possible to fully 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 might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA