Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.
铁件在由硫酸铜、硫酸亚锡、络
剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡
金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

路基自重外荷载作用,使路基达到最终


