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Browse Prior Art Database

Contact Stripping

IP.com Disclosure Number: IPCOM000045971D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Nguyen, AD: AUTHOR

Abstract

This article describes an improved technique for desoldering and salvaging printed circuit boards.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Contact Stripping

This article describes an improved technique for desoldering and salvaging printed circuit boards.

Cards to be desoldered are loaded in a conveyor. The cards are passed at a predetermined rate through a heat station maintained at a predetermined temperature for reflowing the contacts. Thereafter, a downwardly directed jet of compressed air is used to remove solder from the printed circuit cards. The high velocity air flow condenses the solder immediately after it is removed from the card and thereby minimizes solder splash.

This technique is advantageous in that no mechanical contact with the solder contacts is required. It has been found that air pressure of approximately 40 pounds per square inch provides the best results.

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