H - Electricity – 05 – K
Patent
H - Electricity
05
K
356/22, 356/8
H05K 3/34 (2006.01) B23K 3/06 (2006.01)
Patent
CA 1196426
ABSTRACT OF THE DISCLOSURE Wave soldering apparatus particularly adapted for soldering printed circuit boards which have closely packed chip components adhesively mounted on one side of the boards is described. A novel nozzle assembly is dimensioned to be mounted to the solder supply conduit of a conventional wave soldering reservoir. The nozzle assembly comprises a first nozzle which delivers a turbulent jet to the undersides of the printed circuit boards as they are conveyed over the nozzle assembly, and a second nozzle which delivers a smooth laminar wave through which the undersides of the printed circuit boards immediately subsequently pass. The turbulent jet forces solder into the restricted spaces at which chip component contact pads are located and the smooth wave completes this soldering action by building of additional solder in a manner which discourages the formation of solder "icicles" and bridging.
407740
Electrovert Limited
Smart & Biggar
LandOfFree
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