Metal treatment – Compositions – Fluxing
Patent
1975-01-31
1976-06-01
Rosenberg, P. D.
Metal treatment
Compositions
Fluxing
148 22, B23K 3534
Patent
active
039606139
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 amine salt of an alpha-bromo aliphatic carboxylic 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 components leads, and (D) soldering the components to the printed circuit board.
REFERENCES:
patent: 2672479 (1954-03-01), Doerr
patent: 2898255 (1959-08-01), Thompson
patent: 2978369 (1961-04-01), Battle
patent: 3099590 (1963-07-01), Laudenslager
patent: 3459606 (1969-08-01), Becker
patent: 3832242 (1974-08-01), Cuthbert
Brooks J. T.
Chevron Research Company
Magdeburger G. F.
Rosenberg P. D.
Tonkin C. J.
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