Metal treatment – Compositions – Fluxing
Patent
1974-12-20
1976-08-31
Rosenberg, Peter D.
Metal treatment
Compositions
Fluxing
148 22, 228207, B23K 3534
Patent
active
039779165
ABSTRACT:
Wax-flux compositions for use in low-temperature soldering processes comprise (A) a major amount of a wax and (B) an effective amount to cause fluxing, at or below the soldering temperature of the piece to be soldered, of a wax-soluble alkylaryl sulfonic acid. A process for soldering electrical components to a printed circuit board comprises (A) applying a molten wax-flux composition as described above to the metal pattern side of the board, (B) allowing the wax-flux composition to solidify, (C) trimming the component leads, and (D) soldering the components to the printed circuit board.
REFERENCES:
patent: 2279828 (1942-04-01), Liberthson
patent: 2508501 (1950-05-01), DiGiulio
patent: 2553226 (1951-05-01), Williams
patent: 2581820 (1952-01-01), Stright
patent: 2687362 (1954-08-01), Rueggeberg
patent: 2879195 (1959-03-01), Speed
patent: 3000769 (1961-09-01), Melchiors
patent: 3321339 (1967-05-01), Schulze
Fox Richard C.
Jones Thorton K.
Stayner Robert A.
Brooks J. Tedd
Chevron Research Company
Magdeburger G. F.
Rosenberg Peter D.
Tonkin C. J.
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