Cooling and exhaust unit for solder reflow system

Details Cooling and exhaust unit for solder reflow system Cooling and exhaust unit for solder reflow system

1989-07-12

1990-04-03

Joyce, Harold

Drying and gas or vapor contact with solids

Apparatus

Stationary press type

34 66, 34242, 981151, 228 46, F26B 2508

Patent

active

049128574

ABSTRACT:
A cooling and exhaust unit for an IR reflow soldering machine is arranged to be mounted on the soldering machine after the last heating zone. The unit has fans which direct cold air downwardly on to the conveyor and this cooling air divides into two streams, one moving with the conveyor and one counter to the movement of the conveyor. An exhaust inlet is provided near the front and the rear of the machine, the exhaust inlets being connected through an exhaust chamber to an exhaust outlet. To minimize the amount of hot process air sucked out of the soldering machine into the nearer exhaust inlet an additional cold air inlet is provided, this being located intermediate the rear end of the unit (i.e., the end abutting the soldering machine) and the nearer exhaust inlet.

REFERENCES:
patent: 2409298 (1946-10-01), Merrill
patent: 3727324 (1973-04-01), Melgaard
patent: 3851402 (1974-12-01), Turnbull et al.
patent: 4361967 (1982-12-01), Bahnsen et al.
patent: 4535548 (1985-08-01), Hyde
Research Inc. "Radiant Energy" (2 pages).
SPT International Inc. 770L-8 Zone (2 pages).
Dynapert RC-18 (2 pages).
Vitronics SMD 700 (2 pages).
Radiant Technology Corp. SMD-6000 (2 pages).
Radiant Technology Cor;. SMD-624-924-1224 (2 pages).
Radiant Technology Corp. SMD-3000 (2 pages).
SENJU (2 pages).
EXCEL (2 pages).

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