Apparatus for application of flux

Details Apparatus for application of flux Apparatus for application of flux

1989-01-05

1990-06-19

Woo, Jay H.

Coating apparatus

With means to prepare work surface for coating

Liquid treatment

118410, 228 37, 228 43, B05C 502

Patent

active

049343076

ABSTRACT:
An apparatus for the application of foam flux in a system for soldering printed boards, including a flux tank, a partition possessing a top portion rising above the fixed level of flux liquid and containing near the bottom portion thereof a perforated portion, serving to divide the interior of the flux tank into an inner tank portion and an outer tank portion, and a plurality of porous tubes disposed inside the inner tank portion having one end thereof communicating with an external compressed air feed mechanism and the other end thereof closed, the improvement wherein the porous tubes are porous ceramic tubes and are each obtained by molding an aggregate of uniform and fine ceramic-forming particles into the shape of a tube with the aid of an organic plasticizer and an inorganic binder and calcining, the porous tubes possessing pore diameters in the range of 10 to 30 microns and a porosity in the range of 35 to 55%.

REFERENCES:
patent: 2267877 (1941-12-01), Schell
patent: 3135630 (1964-06-01), Bielinski et al.
patent: 3218193 (1965-11-01), Isaacson
patent: 3724418 (1973-04-01), McLain
patent: 4684544 (1987-08-01), Amett
patent: 4796558 (1989-01-01), Chartrand et al.

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