Method of and apparatus for solder coating a lead and a method of soldering a lead coated by the method

摘要

776,378. Coating with metals. ERIE RESISTOR CORPORATION". Nov. 26. 1954 [Jan. 25, 1954], No. 34359/54. Class 82(2) [Also in Groups XXII and XXXVI] A copper lead is coated with soft solder by passing the lead through a bath of soft solder and then through a column of heated oil floating on the surface of the solder, the oil being at such a temperature as ,to set the solder to the lead. A tinned copper wire 9, Fig. 6, is passed through a flux bath 10 under pulleys 11, through a molten solder bath 13 at 440-470‹F. under pulleys 14, 15 and then up through a cylinder 16 filled with palm oil floating on the solder, the average temperature of the oil being' 100- 200‹F. below the solder bath temperature to smooth and set the solder coating. The oil is circulated by a pump 22 and cooled in a heat exchanger 20. The coated wire is cleaned in a solvent bath 24. Two such coated wires are soldered to the ends of a condenser.