CONTINUOUS SOLDER PLATING METHOD OF ALUMINUM STRIP

摘要

PURPOSE: To easily and continuously plate an Al strip with solder without adding a flux by preheating the Al strip delivered at a specified speed, then bringing the Al strip into contact with gushing solder while ultrasonically vibrating the Al strip. ;CONSTITUTION: The Al strip 2 is delivered from a supply roller 1a to a take-up roller 1b in a specified direction at a specified speed via guide rollers 3a to 3d. After this Al strip 2 is preheated at a prescribed temp. by a heater 6, the Al strip is passed over a jet type solder tank 4. The solder 4d housed in the tank 4a is spouted from a nozzle 4c by a fan 4b at this time. The Al strip 2 is pressed from above the horn 5b of an ultrasonic generator 5 and while ultrasonic vibrations are applied from a vibrator 5a to the Al strip, the Al strip is brought into contact with the solder 4d gushing in a jet part 41d. The front end of the horn 5b is preferably formed to a rounded groove part so that the strip 2 is smoothly and stably slid. As a result, the Al strip is continuously and uniformly plated with the solder.;COPYRIGHT: (C)1994,JPO&Japio