Method for minimizing the clogging of a cooling zone heat exchan

Details Method for minimizing the clogging of a cooling zone heat exchan Method for minimizing the clogging of a cooling zone heat exchan

1996-02-14

1997-06-24

Chiesa, Richard L.

Gas separation: processes

Filtering

Plural separate media

55267, 95288, 165 95, 228 46, 228200, 228219, B01D 2956

Patent

active

056413416

ABSTRACT:
A method for minimizing the clogging of a cooling zone heat exchanger of a reflow solder apparatus that includes the steps of: removing a gas/flux mixture from an exhaust zone (20) that is located adjacent a heated zone and/or a cooling zone; conducting the gas/flux mixture to and through a first filter chamber (22), conducting the filtered gas from the filter chamber (22) through a low pressure portion of a blower housing of a cooling zone (16), then subsequently to and through a high pressure portion (44) of the cooling zone that includes a collection tray (38), a mesh filter (48), a heat exchanger (46) and at least one perforated plate (50). The heat exchanger is thermostatically controlled at a preset tempering temperature that minimizes the collection of flux on its exterior surfaces while allowing a solder joint of an article to solidify.

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patent: 5526978 (1996-06-01), Nagatsuka et al.
patent: 5573174 (1996-11-01), Pekol
patent: 5573688 (1996-11-01), Chanasyk et al.

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