| 摘要 |
<p>Iron containing substrates are electrically polarized in a pre-plating composition containing one or more sulfonic acids and one or more grain refiners, the pre plating composition activates the surface of the steel substrate to receive thin tin or tin alloy. The thin tin or tin alloy is electroplated onto the activated surface of the steel substrate. The thin tinplate and alloy have reduced amounts of pores in the surface.</p> |
