Previous in Forum: Monitoring Carbon Black in Silos   Next in Forum: How to Measure Dimension Without Disassembling the Lathe?
Close
Close
Close
2 comments
Active Contributor

Join Date: Dec 2006
Posts: 11

Preparation of oxidation electronic component leads for solderability

12/12/2006 1:08 PM

Was wondering if someone could educate me on the process/procedures industry accepted for preparing older date code components that may be heavily or moderately oxidized for quality solder joints at the next assembly. Parts of interest may be built prior to 1999.

Ron

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
Hobbies - HAM Radio - New Member United Kingdom - Big Ben - New Member Fans of Old Computers - Altair 8800 - New Member Canada - Member - New Member

Join Date: Jun 2006
Location: Toronto
Posts: 3968
Good Answers: 119
#1

Re: Preparation of oxidation electronic component leads for solderability

12/13/2006 12:23 PM

organic acids, like oleic can do this at 80C or so.

You will need to dip, heat and solvent wash the parts and be prepared to condense any fumes. Normal production with these agents has been phased out.

Another way is an ultrasonic bath with pumice which will erode the oxides.

some other stuff in here.

http://www.google.ca/search?hl=en&q=%22cleaning+electronic+parts%22+%2Bsolder&btnG=Search&meta=

__________________
Per Ardua Ad Astra
Register to Reply
Active Contributor

Join Date: Dec 2006
Posts: 11
#2
In reply to #1

Re: Preparation of oxidation electronic component leads for solderability

12/13/2006 1:13 PM

Thanks! That is really useful info. I have passed along internally. Gratefully, Ron

Register to Reply
Register to Reply 2 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Previous in Forum: Monitoring Carbon Black in Silos   Next in Forum: How to Measure Dimension Without Disassembling the Lathe?

Advertisement