The electrochemical behavior of three kinds of Schiff base brighteners (DL01,DL02, DL03) and CoSO4 in sulfate baths for electroplating of bright tin and tin-cobalt alloy coatings was investigated using linear potential sweep.

Studies on the effect of plating parameters on tin-lead alloy electroplating in alkylsulfonate baths;

Determination of tin and lead content in fluoborate tin-lead alloy plating baths;

Effects of technological parameters on methane-sulfonate tin-lead alloy electroplating;

The aluminum for light-grid material in lead-acid batteries was electroplated with Pb-Sn alloy from sulphamate bath,and the opitimum technology condition and electrolyte composition were determined.

Effects of tin content on the oxygen evolution behavior of Pb-Sn alloys;

A two-layered structure of eutectic-solid sulotion is formed in the microstructure of Pb-Sn alloy obtained from quasi-two-dimensional electrodeposition.

This article,using the diffusion theory in solid metals,discusses in detail the mechanism of hot-dip Pb-Sn alloy coating of the double-wall brazed tube,and analyzes the existing defects in the production of pb-Sn hot-dip coated double-wall brazed tube in line with the theory on Pb-Sn alloy corrosion resistance.