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 18961

Solderability problem


2003

What can be the cause for the poor solderability for a bright tin plated pin, brass pin with copper underlayer.

Ken Soh
- Singapore


2003

The brighteners use in bright tin baths are organic, as such they co-deposit with the tin and can interfere with solderability. This is usually the case. However also over time intermetallics will form between the tin and the copper, rendering the part less solderable.

Jon Quirt
- Fridley, Minnesota


2003

Apparently the copper and/or zinc are migrating up thru the tin when heat is applied. Try increasing the thickness of the tin plate or use a nickel diffusion barrier between the brass and tin.

robert probert
Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
Editor's note: Mr. Probert is the author of Aluminum How-To / Aluminio El Como
and co-author of The Sulfamate Nickel How-To Guide



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.