Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1986-05-27
1988-08-30
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34242, F26B 1512
Patent
active
047666773
ABSTRACT:
A system is provided for vapor phase soldering of articles, in a hot vapor, in which the articles are preheated prior to being delivered to a vapor zone, to raise the temperature of the wires or other contact points that are to be soldered together, to be compatible. Techniques are employed to prevent escape of the soldering vapor, including controlled opening of inlet and outlet closures to the system, sloped inlet and outlet tunnels, heated inlet and outlet zones, the condensation of vapor at transition locations and an air screen or air shield system just inside the openable closures to the system. A control of the locations of condensation of the vapors is provided, with delivery of the condensate for re-use. A condensate flash tray is provided in the system for substantially immediate re-vaporization of some of the condensate. An electric fluid boil system and a still are provided. A conveying system is provided for delivering articles into, through and out of the vapor zone, from positions above the vapor line, through the vapor, and back above the vapor line upon discharge.
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Brooks Terrill W.
Gerard Donald R.
Detrex Chemical Industries, Inc.
Schwartz Larry I.
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