Metal fusion bonding – Solder form
Patent
1993-07-15
1994-11-01
Bradley, P. Austin
Metal fusion bonding
Solder form
228224, B23K 35365
Patent
active
053601580
ABSTRACT:
The present invention utilizes a novel flux-coated alloy member that is particularly adapted to be selectively positioned at the braze joints of a tube-and-center type heat exchanger. The flux-coated alloy member is suitably sized and shaped to place a predetermined quantity of flux compound and brazing alloy at the braze joints, so as to avoid the presence of excess flux compound and brazing alloy which may otherwise have a detrimental effect on the quality of the braze joints subsequently formed during a brazing operation. The flux coating of this invention is hard and durable, and is composed of potassium tetrafluoroaluminate particles which are dispersed in either a natural resin or a water soluble epoxy resin.
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patent: 4624866 (1986-11-01), Cheng et al.
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patent: 4807799 (1989-02-01), Myong et al.
patent: 4901909 (1990-02-01), George
"A Guide To Preform Soldering", Alloys Unlimited, Inc., Long Island City, N.Y., 1959.
Conn Paul J.
Schrameck William J.
Bradley P. Austin
Hartman Domenica N. S.
Hartman Gary M.
Knapp Jeffrey T.
The S.A. Day Mfg. Co., Inc.
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