| 摘要 |
A continuous vapor phase processing machine of the type wherein work is selectively heated by a processing vapor in a processing vapor zone to a selected temperature for vapor phase processing. The machine has a tank containing a processing vapor, and a throat is in communication with the tank. The throat communicates with the air, and cooling coils extend along at least a portion of the throat. Openings are defined in the throat across the throat at a location substantially spaced from the outer end of the throat and a manifold communicates with these openings. Means are connected to the manifold for drawing air from the throat through the openings defined in the throat and for removing processing vapor therefrom, the flow of air being drawn into the throat through the throat exit aperture and being pulled through the opening comprising a barrier to the flow of processing vapor to the throat exit aperture.
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