Method for braze flux application

Details Method for braze flux application Method for braze flux application

1998-01-26

2000-03-14

Ryan, Patrick

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228183, 228207, 228232, 2282332, 427458, 427475, B23K 120, B23K 3102, B05D 104

Patent

active

060360836

ABSTRACT:
The forming oil degreasing step and flux coating step are reversed as part of a basic fluxed heat exchanger brazing process. This allows the fluxed parts to be thermally degreased concurrently with the braze oven workpiece preheat process, eliminating a separate degrease step and apparatus entirely. Surprisingly, and contrary to all teaching as to electrostatic dry power coating, powdered flux was found to electrostatically bond to an oily surface as well as, or even better than, an oil free surface.

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