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Circuit Module Peeler Machine

IP.com Disclosure Number: IPCOM000090470D
Original Publication Date: 1969-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Kurbaba, MR: AUTHOR

Abstract

This machine is for peeling the circuit modules from a printed circuit board which are defective or damaged. The machine is particularly adapted for use in salvage operations.

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Circuit Module Peeler Machine

This machine is for peeling the circuit modules from a printed circuit board which are defective or damaged. The machine is particularly adapted for use in salvage operations.

The printed circuit card has one or more rows of circuit modules fixed to it and is considered to have become defective. It is desirable to remove the modules from the printed circuit cards. Such a printed circuit card is passed circuit-connecting side down over a roller immersed in a bath of hyderfoil glyceride or other wetting agent. The card is then passed through a bath of hot or molten solder to melt the solder connections. Lead straighteners immersed in the hot solder bath function to straighten the leads of the modules placing them in a position perpendicular to the printed circuit card surface. The card is then moved over a plurality of module lift bars which raise the circuit modules from the card. An air jet then blows the loose modules into a container and the stripped printed card is removed to a scrap pile.

In the module removal process, the printed circuit card is exposed to the heat of the hot solder bath for a relatively short time, three to five seconds. This reduces the number of modules lost or damaged due to excessive exposure to heat.

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