Multifunctional soldering flux with borneol

Details Multifunctional soldering flux with borneol Multifunctional soldering flux with borneol

1997-06-23

2000-01-04

Andrews, Melvyn

Metal treatment

Compositions

Fluxing

148 25, B23K 3536

Patent

active

060105771

ABSTRACT:
A soldering flux containing borneol, which is also referred to as bornyl alcohol. A method soldering using such a flux is also disclosed. Even minor proportions of borneol in the flux help reduce ionic residue from the flux after soldering. Larger proportions of borneol can give the flux tackiness for wave soldering operations. The flux preferably comprises borneol and an organic acid activator that volatilizes during soldering. The flux is applied as a solution of borneol and the organic acid activator in a solvent that substantially evaporates before soldering without leaving any measurable solvent residue.

REFERENCES:
patent: 5004508 (1991-04-01), Mace et al.
patent: 5004509 (1991-04-01), Bristol
patent: 5127968 (1992-07-01), Gomi et al.
patent: 5507882 (1996-04-01), Bristol et al.
patent: 5747217 (1998-05-01), Zaklika et al.
Pengelly, M I et al Ann OccupHyg vol.38 No. 5 pp. 753-763, Mar. 8, 1994.

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