STUDIES ON NEW STABILIZERS FOR Tin(II) IN ACID Sn PLATING BATH

摘要

Bright Tin-plating in SnSO4 and H2SO4 solution is extensively used, which has advantages of high current efficiency, high deposition velocity, no need of heating, better abilities of throwing power & cover power, and the bright layer of anti-corrosion & welding ability. However, this kind of electroplating solution is very instable, and easily becomes turbidity or causes light yellow deposit. So it is of very important value to study stabilizers for Tin(II) in acid Sn-plating bath. A better stabilizer, including vanadium compound etc, was harvested through the orthogonal design.