B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
113/89
B23K 1/012 (2006.01)
Patent
CA 1167327
-1- ABSTRACT HOT AIR REWORK TOOL A method and apparatus for directing a stream of hot air to localized areas of a printed circuit assembly until a temperature sufficient to melt solder is achieved, thereby facilitating the soldering/desoldering of circuit components mounted thereon. The apparatus essentially com- prises a work station having upper and lower heat tubes through which a stream of turbulent hot air is directed, an adjustable support grid for supporting the pc assembly and a control means for controlling the temperature and flow of the air in the heat tubes. The method being dependent on the use of a heat sensitive lacquer for detecting when the solder holding the component to the pc assembly has achieved a desired temperature and at which temperature the component can be removed or replaced.
375069
Kirby Eades Gale Baker
Sperry Corporation
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