The alloys and corrosive products of the Pb-Sn alloy solders,existing in bronzes excavated from Jiuliandu site during Warring States Period,were analyzed by using techniques of energy spectrum,X-ray powder diffraction,X-ray fluorescence spectrometry and metallurgical analysis,etc.

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.

The paper reports a iiew method inwhich ammonium modybdate iS released totitrate the lead content in lead-tin alloy as these is appearomee of an acute notch on thedE/dt-E curve ofZn￣(2+) at the titration endpoint.

The reason lies in unable butt fusion between terne plating of the copper-insert surface and lead-tin alloy used for terminal post.