B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
113/89
B23K 3/06 (2006.01) C23C 2/16 (2006.01) H05K 3/34 (2006.01)
Patent
CA 1057134
PNEUMATIC SYSTEM FOR SOLDER LEVELING APPARATUS ABSTRACT OF THE DISCLOSURE A solder levelling machine which uses a hot gas emanating from opposed gas knives to remove excess molten solder from a printed circuit board as the board is with- drawn from a bath of molten solder contained in a self- purging solder pot. The hot gas clears the through-holes in the circuit board and allows a controllable desired thickness of solder to remain on the board and in the through holes. A pair of heaters supplies the hot gas to the knives through a manifolding arrangement.
257619
Na
Xerox Corporation
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