Gas knife cooling system

Details Gas knife cooling system Gas knife cooling system

1995-06-23

1996-11-26

Heinrich, Samuel M.

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228231, 228 46, H05K 334

Patent

active

055776582

ABSTRACT:
A gas knife cooling system for reflow soldering cools soldered articles by impinging a gas flow directly on the articles and as a result uses less cooling gas. A heater is associated with the cooling system to remove flux deposits. The cooling system is installed in the cooling section of a reflow soldering apparatus and comprises at least one gas knife to direct a gas stream at soldered products passing through the cooling section on a conveyor. A heater is associated with the gas knife which is activated for predetermined cleaning cycles to heat the gas knife to a temperature above flux vaporization temperature of flux deposits from the soldered products.

REFERENCES:
patent: 4771929 (1988-09-01), Bahr et al.
patent: 4912857 (1990-04-01), Parent et al.
patent: 5125556 (1992-06-01), Deambrosio
patent: 5364007 (1994-11-01), Jacobs et al.

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