Importance

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Abstract

A wire coating oven (2) is disclosed which includes a wire cooling apparatus (1) for cooling a wire (3) passing therethrough, while minimizing gaseous emissions. The cooling apparatus includes a wire cooling passage (10) having a wire entrance end (13) adjacent the oven and a wire exit end open to the atmosphere, with the wire cooling passage defined by a first wall (11) which surrounds the wire passing therethrough. A hot gas passage (15) is defined by a spacing between the first wall and a second wall (14) disposed adjacent thereto with hot gas entering the passage at about the wire exit end and exiting at the oven end. The first wall includes an outwardly tapered surface (19) near the wire entrance end for forming a venturi with the second wall, whereby a hot gas passing therebetween creates a negative pressure within the wire passage, drawing cool air (20) into the wire passage, cooling the wire and drawing any vaporous emissions into the oven. Utilizing the above described apparatus has resulted in substantial reductions in emissions while minimizing snagging problems during wire string-up.

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First Claim