高稳定性无氰镀银工艺研究

何光耀, 刘 燕, 丁运虎, 黄朝志, 黄兴林, 王一品, 马爱华

doi:10.16577/j.issn.1001-1560.2023.0173

材料保护 >

2023 , Vol. 56 >Issue 7: 141 - 144

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0173

工艺探讨

高稳定性无氰镀银工艺研究

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1.中国机械总院集团武汉材料保护研究所有限公司，湖北武汉 430030；2.航天精工股份有限公司，天津 300300

何光耀(1994-)，硕士研究生，助理工程师，主要从事方向为电化学沉积，电话:18734125616，E-mail:13554538658＠163.com

收稿日期: 2023-01-18

修回日期: 2023-02-19

录用日期: 2023-03-20

网络出版日期: 2023-08-23

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Research on High Stability Cyanide-Free Silver Plating Process

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1.Wuhan Research Institute of Materials Protection，Wuhan 430030，China；2.Aerospace Seiko Co.，Ltd.，Tianjin 300300，China

Received date: 2023-01-18

Revised date: 2023-02-19

Accepted date: 2023-03-20

Online published: 2023-08-23

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摘要

针对传统氰化镀银工艺存在的毒性及职业健康风险，开展了无氰镀银工艺研究。通过Hull Cell 试验以及对试验现象的观察比较，确定并优化了无氰镀银的工艺参数。结果表明:该工艺在35～45 ℃，pH 值为9.0～10.0，0.1～1.2 A/dm2的电流密度下，可以获得外观平整、纯度高、均匀光亮的镀银层，且镀液具有稳定性好、电流效率高等优点，具有市场应用潜力。

关键词： 无氰镀银; 氰化镀银; 镀层性能

本文引用格式

何光耀, 刘燕, 丁运虎, 黄朝志, 黄兴林, 王一品, 马爱华 . 高稳定性无氰镀银工艺研究[J]. 材料保护, 2023 , 56(7) : 141 -144 . DOI: 10.16577/j.issn.1001-1560.2023.0173

Abstract

In view of the toxicity and occupational health risks associated with the traditional cyanide silver plating process，a study of the cyanide-free silver plating process was carried out.Through Hull Cell experiments and observation and comparison of experimental phenomena，the process parameters of cyanide-free silver plating were determined and optimized.Results showed that when the process conditions were temperature of 35～45 ℃，pH value of 9.0～10.0 and current density of 0.1～1.2 A/dm2，the as-prepared silver plating coating with a flat appearance，high purity，and uniform brightness was obtained.Moreover，the plating bath had the advantages of good stability and high current efficiency，which possessed market application potential.

Key words： cyanide-free silver plating; cyanide silver plating; coating properties

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