全光亮镀铑添加剂的研究

Investigation of Completely Bright Additive for Rhodium Plating

为了适应饰品加工市场对高光亮镀铑添加剂国产替代进口的需要,在传统镀铑液配方及工艺的基础上,依据电化学原理,设计了全光亮镀铑添加剂的配方组合及工艺流程,并通过正交试验法对所获镀层的表观进行了评定,初步获得了一种新型全光亮镀铑添加剂。阐述了镀铑添加剂的作用机理,探索了最佳工艺用量。结果表明,采用本添加剂所得工艺配方简单,成本适中,操作方便,无毒无害,便于维护。在一定温度和电流密度条件下,所得镀铑层平整光亮,酷似白金,可作为仿白金装饰性镀层的理想工艺。

In order to meet the demand of replacing the import bright additive with domestic ones during rhodium plating, based on the traditional rhodium plating formula and techniques, the formula and process of completely bright additive for rhodium plating is investigated according to the electrochemistry theory. The optimal process of the novel and improved holo-bright rhodium plating is determined by orthogonal test. In addition, the function mechanism of bright additive for rhodium plating is discussed. The result shows that the process is simple, convenient to operate, nonpoisonous and easy to be maintained. Under a fixed temperature and current, the rhodium plating with the appearance of platinum is glossy and uniform. It is an ideal technology to imitate the decorative platinum plating.