| 摘要 |
Electroplated steel sheet suitable for soldering is provided herein by coating the plated steel sheet with a post-treatment solution in the range of 0.02 to 2 mu m in dry thickness. The post-treatment solution contains from 2 to 100 g/l of at least one water-soluble or water-dispersed material. Specified materials are fatty alcohols, alkylphenols, fatty acid/ ethylene oxide condensates, polyethylene glycol-alkylamines, sorbitan/fatty acid condensates, surfactants prepared from polypropylene glycol as a hydrophobic group and polyethylene glycol as a hydrophilic group, fatty acid/diethanolamine amides, fatty acid/sucrose esters, saponificates prepared from lanolin alcohol or lanolin fatty acid or as a flux, abietic acid, benzoic ecid, saturated fatty acids (C12-24), unsaturated fatty acids (C12-24), organic alcohols (C2-400), esters of fatty acids, derivatives of benzotriazoles and metalates, ammonium salts and amine salts of said materials, and phosphoric esters.
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