finishing.com -- The Home Page of the Finishing Industry

HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
Live! From beautiful Pine Beach New Jersey: Welcome to the world's most popular metal finishing website

topic 17096

Nickel plating that could pass one (1) cycle CASS Test?


2002

Our previous practice of corrosion resistance test for our purchased Nickel plated screw was 24 Hr SST, which gave us fair result.

Recently, the requirement of this test has been changed (upgraded?) to one cycle CASS Test. Thus, we experience corrosion quality problem for these.

I'd like to hear yours experience and ideas that could overcome this. (post-treatment, passivation?)

p/s: Cr plating after Ni is unlikely, appearance of the Ni finishing is required.

Regards

chee hong lee
Chee Hong, Lee
- Singapore


2002

There is but nothing in passivation or lacquering that will work on screws. The only way to meet the spec is to go for duplex nickel, with an 80% thickness of sulphur free layer and 20% bright layer.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind supporting advertiser
Bangalore, Karnataka, India

saify logo


2003

I'm testing on triplex nickel plating. Additional a thin high-sulphur nickel between the semi and bright nickel. Have yet to know the outcome.

Chee Hong, Lee
Chee Hong, Lee
- Singapore



If you have a question in mind which seems off topic, please Search the Site

ADD a Q, A, or Comment on THIS topic START an UNRELATED topicView CURRENT 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


©1995-2019 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.