| 摘要 |
<p>PURPOSE:To elute solder and to recover phosphor bronze and Fe-Ni alloy with high grade, by electrolyzing phosphor bronze and Fe-Ni alloy as anode to which solder is adhered, in silicofluoride or borofluoride bath. CONSTITUTION:A basket shaped stainless steel receptable 2 having many holes is hung revolvably by a supporting rod 4 in an electrolytic cell 1. Cathode plates 8 made of stainless steel are arranged inside the cell 1. Electrolytic bath such as silicofluoride or borofluoride bath used for plating Pb-Sn alloy is fed in the cell 1, the receptacle 2 is dipped therein, scraps of phosphor bronze and Fe-Ni alloy to which Ps-Sn solder is adhered is fed therein. The receptacle 2 is connected to positive pole of DC source while being revolved, and scrap itself as anode is electrolyzed while bringing electricity conductng rods 6 joined to the receptable 2 in to contact with scrap. Solder adhered to scrap is dissolved into electrolyte bath, precipitated at cathode, and phosphor bronze and Fe-Ni free from solder adhesion can be recovered.</p> |
