Automatic wave soldering machine

Details Automatic wave soldering machine Automatic wave soldering machine

H - Electricity

05

K

356/22

H05K 3/34 (2006.01) B23K 1/08 (2006.01) B23K 3/06 (2006.01)

Patent

CA 1217571

ABSTRACT OF THE DISCLOSURE Automatic wave solder apparatus having a fluxer section, preheater section and wave soldering section through which circuit boards are passed by a conveyor. All of the major process para- meters are monitored by a microprocessor. One specific parameter controlled is the temperature of the boards exiting from the preheater system. Preheating is carried out by two axially spaced banks of heaters, the upstream one supplying the major quantity of heat and the downstream one supplying sufficient heat to boost the temperature to the desired value. A pyrometer located in the zone between the two banks of heaters measures the heat radiated from the boards and this information is converted by the microprocessor to an appropriate instruction to the second bank of heaters. The soldering section has a solder pot assembly particularly adapted to the automatic nature of the apparatus. The pot can be jacked to the correct height according to the length of leads projecting from the boards under control of the microprocessor. Irrespective of the solder pot height the struc- ture of the solder nozzle ensures constant values for the rear flowing portion of the wave. The pot may be swung out for cleaning.

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