B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
117/224, 148/59
B23K 35/363 (2006.01) B23K 35/36 (2006.01) H05K 3/28 (2006.01)
Patent
CA 2027570
A method and composition for protecting and enhancing the solderability of a metallic surface. A mixture which includes a chosen protective material and a dicarboxylic acid fluxing agent is applied to the metallic surface to form a protective film or coating which also enhances the solderability of the metallic surface. The mixture is applied to the metallic surface as a solution having a solvent carrier which evaporates to leave the film. The film is heat activated at soldering temperatures to release the fluxing agent.
Méthode et composition pour protéger et améliorer l'aptitude au brasage d'une surface métallique. Un mélange comprenant une substance protectrice choisie et un fondant à l'acide dicarboxylique est appliqué à la surface du métal pour former une pellicule ou un enduit protecteur qui améliore également l'aptitude au brasage de la surface métallique. Le mélange est appliqué à la surface métallique sous forme d'une solution comportant un véhiculeur de solvant qui s'évapore pour laisser seulement la pellicule. La pellicule est activée par chauffage à des températures de brasage de manière à libérer le fondant.
Hughes Aircraft Company
Sim & Mcburney
LandOfFree
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