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Solder Flux Removal Apparatus

IP.com Disclosure Number: IPCOM000083364D
Original Publication Date: 1975-May-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Kotrch, GS: AUTHOR [+3]

Abstract

Removal of solder flux after soldering operations in the production of electronic circuit components and the like is accomplished by various methods. For example, this operation can be performed in vapor degreasing type equipment and with the use of solvents such as FREON*-alcohol mixtures. However this type of flux removal is not adequate for modules with densely packaged electrical connections. In order to solve this problem, a method is required that not only permits a forced solvent application to the desired sites but also results in the lowest possible flux residue.

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Solder Flux Removal Apparatus

Removal of solder flux after soldering operations in the production of electronic circuit components and the like is accomplished by various methods. For example, this operation can be performed in vapor degreasing type equipment and with the use of solvents such as FREON*-alcohol mixtures. However this type of flux removal is not adequate for modules with densely packaged electrical connections. In order to solve this problem, a method is required that not only permits a forced solvent application to the desired sites but also results in the lowest possible flux residue.

A solder flux removal device has been devised through modification of vapor degreasing type equipment and depicted in the drawing. The flux removal device comprises a stand 10, a component holder 11, and a solvent distribution apparatus 12. The stand 10 is mounted in the boiling chamber 13 of a vapor degreaser and above the solvent level 14. The holder 11 includes a shaft 15 and a ring 16 with fins 17 attached thereto, which causes the holder 11 and component assembly to rotate during the solder flux removal operation.

The distribution pipe 12 directs the cleaning solution into critical areas of the component being cleaned. One jet of the pipe 12 is directed onto the fins 17 of the wheel 16 and serves to propel the holder 11 and component parts in a rotary fashion.

Features of the apparatus are the self-propelling of the component parts being cleaned, the distributi...