Browse Prior Art Database

Hand-Held Gas-Assisted Soldering Iron

IP.com Disclosure Number: IPCOM000113518D
Original Publication Date: 1994-Sep-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Christner, GL: AUTHOR [+4]

Abstract

A soldering iron possessing an integrated cover gas fixture in which an inert or reactive gas blankets the area being soldered is described. This was developed in order to provide for more consistent manual soldering, solder joint formation, heat uniformity, and elimination of flux residues normally present on post-soldered surfaces.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 64% of the total text.

Hand-Held Gas-Assisted Soldering Iron

      A soldering iron possessing an integrated cover gas fixture in
which an inert or reactive gas blankets the area being soldered is
described.  This was developed in order to provide for more
consistent manual soldering, solder joint formation, heat uniformity,
and elimination of flux residues normally present on post-soldered
surfaces.

      In order to eliminate the presence of flux residues and provide
for consistent component to pad soldering, a soldering iron with an
incorporated gas shroud was developed for use with no-clean fluxes or
no flux soldering operations.  The Figure shows that the tool is a
conventional soldering iron or pen (A) with an attached soldering tip
(B) that is used to reflow solder  which comprises the solder joint.
Attached to the soldering iron is a length of stainless steel tubing
which forms a shroud (C) that encompasses a majority of the length of
the soldering tip.  A feed line (D) is attached to the back of the
shroud and provides a pathway for inert or reactive gasses and
mixtures thereof.  The gas entering from the feed line through the
shroud is heated as it flows through a mass of fine metal turnings
(E) that are placed within the interior of the shroud and are in
partial contact with the hot soldering tip.  A circular washer
fitting (F) possessing small holes around its circumference is
attached to the front end of the shroud and serves to keep the metal
turnings in place while a...