Patent ID: 6794616
Filing Date: 2004-09-21
Classification: F27B,F27D

Abstract:
A solder reflow oven comprising a reflow zone for heating a workpiece that includes a solder to a temperature effective to reflow said solder, and a pre-reflow zone and a post-reflow zone about said reflow zone, said solder reflow oven further comprising:a conveyor for transporting the workpiece in a travel direction sequentially through the pre-reflow zone, the reflow zone and the post-reflow zone; a plenum for supplying heated air to the reflow zone, said plenum comprising a front side and a rear side in spaced relationship transverse to the travel direction and defining a plenum opening therebetween, said plenum opening having a first dimension in said travel direction; and a nozzle for receiving heated air from said plenum and directing said heated air toward said conveyor, said nozzle comprising front and rear vanes in divergent relationship and defining a nozzle opening adjacent the conveyor having a second dimension in said travel direction less than or equal to the first dimension.