Asahi Chemical Research Laboratory Co., Ltd.

Atsushi Kabe

Yoichi Oba

Yamahiro Iwasa

The invention relates to a method and a device of cleaning a soldering iron having melted solder attached thereto in which the method includes sticking the soldering iron into irregularly entangled strip elements which may be continuous, heatproof and elastic, and axially reciprocating the soldering iron in the entangled strip elements to scrape the melted solder off the soldering iron by means of the edges of the strip elements, whereby the scraped-off melted solder drops from the soldering iron as these are cooled and hardened by the strip elements. On the other hand, the device includes irregularly entangled strip elements which may be continuous, heatproof and elastic, and a case for accommodating therein the entangled strip elements, said case having a bottom and being open at the top thereof so that the strip elements may be operatively accessible thereat, and said irregularly entangled strip elements being so formed as to cooperate with the soldering iron to scrape the melted solder off the soldering iron.

Method of cleaning soldering iron and device therefor

An automatic soldering apparatus and method thereof is described, wherein a flux is heated up to a predetermined temperature, and is then contacted to a face of a printed base board to thereby coat the base board and to simultaneously heat the latter with the heated flux and then the heated base board is contacted to a melted solder, and wherein provided in combination are apparatus for transporting the base board, apparatus for coating the base board with the heated flux, the flux coating apparatus including a tank in which the flux is stored, heating elements for heating the flux up to a predetermined temperature such that the heated flux is coated on the face of the base board, the heated flux simultaneously heating the base board when the latter is transported to the flux storing tank, and apparatus for soldering the flux coated and heated base board, the soldering apparatus including a tank in which a melted solder is stored which is contacted to the base board when the latter is transported to the tank, and wherein the flux is a solution or a mixture of a solvent which is incombustible and of low evaporability, an activator which may be activated by a temperature higher than that of the heated flux and is stabilized with the temperature of the heated flux and an additive which is easily soluble with the solvent and the activator.

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Hachioji, Japan

Atsushi Kabe