Zhang Hongjun,Li Jiangtao.Study on improving corrosion resistance of silver coatings on aluminum and its alloys Wang Ting1,2,3, Li Xiaozheng1,2,3*, Shenxiao1,2,3, Lu Yajuan1,2,3,[J].Plating & Finishing,2025,(06):53-57.
doi: 10.3969/j.issn.1001-3849.2025.06.008铝及铝合金镀银层耐蚀性能提升工艺的研究
- Title:
- Study on improving corrosion resistance of silver coatings on aluminum and its alloys Wang Ting1,2,3, Li Xiaozheng1,2,3*, Shenxiao1,2,3, Lu Yajuan1,2,3,
- 分类号:
- TG17
- 文献标志码:
- A
- 摘要:
- 由于镀层与基材间电位差的影响，铝及铝合金类材料电镀银在实际应用过程中易出现腐蚀起泡故障。本文从铝及铝合金镀银工艺过程出发，对镀银前镀铜和预镀银工艺进行研究，确定影响镀层耐蚀性性能的最优工艺条件及配比。结果表明：降低镀铜溶液浓度，采用低浓度、小电流、长时间的预镀银工艺可获得致密性好、孔隙率低的镀层，从而使样块耐蚀时间从4 h提升至12 h，接头类零部件生产验证耐蚀时间从2 h提升至24 h，为提高铝及铝合金镀银层表面品质，提供了参考依据。
- Abstract:
- Due to the potential difference between the coating and the substrate, corrosion foaming is easy to occur in the process of silver electroplating of aluminum and aluminum alloy materials. Based on the process of silver plating on aluminum and aluminum alloy, the process of copper plating before silver plating and silver plating before silver plating were studied, and the optimal process conditions and ratio affecting the corrosion resistance of the coating were determined. The results show that the coating with good density and low porosity can be obtained by reducing the concentration of copper plating solution and adopting the pre-plating process with low concentration, low current and long time, so that the corrosion resistance time of sample blocks is increased from 4 h to 12 h, and the corrosion resistance time of joint parts production verification is increased from 2 h to 24 h, which provides a reference for improving the surface quality of aluminum and aluminum alloy silver plating layer
参考文献/References:
[1].许振明, 徐孝勉. 铝和镁的表面处理[M]. 上海: 上海科学技术文献出版社, 2005: 1-11.
[2].盛曦霆. 铝合金表面硬质阳极氧化制备工艺及性能研究[D]. 长春: 长春工业大学, 2022.
[3].张策, 张德忠, 郭俊灏, 等. 铝合金阳极氧化膜低温无镍封孔工艺及其封孔性能[J]. 电镀与精饰, 2024, 46(1): 20-27.
[4].王旗, 张尹航, 张晓云. 碱蚀对铝合金常温硬质阳极氧化膜性能的影响[J]. 材料保护, 2023, 56(10): 161-165.
[5].Liu Z H, Zheng X Y, Zhang H W, et al. Review on formation of biofouling in the marine environment and functionalization of new marine antifouling coatings[J]. Journal of Materials Science, 2022, 57(39): 18221-18242.
[6].韩克, 欧忠文, 蒲滕. 铝及铝合金硬质阳极氧化的研究进展[J]. 表面技术, 2011, 40(5): 92-96.
[7].郝留成, 廉继英, 周瑛, 等. 6063铝合金材料镀银层脱落原因及其解决途径[J]. 铸造技术, 2009, 30(10): 1350-1352.
[8].王斌, 李晓征, 张颖杰, 等. 一例元素富集引起的6A02铝合金电镀银层起泡故障分析和解决[J]. 电镀与涂饰, 2020, 39(1): 16-19.
[9].余爽, 赵科. 一起1 100 kV气体绝缘金属封闭开关设备母线放电故障分析[J]. 电气技术, 2021, 4(22): 1-4.
[10].路亚娟, 李晓征, 马迎春, 等. 一例放电事故造成硬氧膜脱落的原因分析[J]. 电镀与精饰, 2023, 45(1): 92-97.
[11].石大鹏, 付建建, 李少龙, 等. 无氰镀银层水性硅溶胶封闭工艺及镀层结构与耐蚀性[J]. 电镀与涂饰, 2024, 43(1): 35-42.
[12].祁海洋, 王海燕, 蒋成博, 等. 铝合金镀银过渡工艺研究[J]. 电镀与精饰, 2023, 45(10): 78-82.
[13].付国华, 张礼学. 铝合金微波腔体表面处理工艺[J]. 电镀与涂饰, 2022, 41(8): 571-573.
[14].宋超, 刘丽颖, 肖薇, 等. 电流密度对无氰镀银层性能的影响[J]. 电镀与精饰, 2019, 41(5): 21-26.
[15].孙费梅, 杨萍, 易伟红. 铝合金基体上多层组合镀层的耐蚀性研究[J]. 电镀与精饰, 2017, 39(12): 29-32.
[16].孙金虎, 李辉, 钟庆东, 等. 镍/铜/锌多层镀层的制备及其耐蚀性[J]. 腐蚀与防护, 2017, 38(12): 928-931.
[17].钟雪华, 方佳明. 影响金属材料耐蚀性因素的研究和探讨[J]. 科技创新与应用, 2017(9): 123.
[18].赵旭辉, 左禹, 赵景茂. 几种封闭方法处理后铝阳极氧化膜的耐蚀性比较[J]. 腐蚀与防护, 2006, 27(8): 400-403.
[19].石大鹏, 付建建, 李少龙, 等. 无氰镀银层水性硅溶胶封闭工艺及镀层结构与耐蚀性[J]. 电镀与涂饰, 2024, 43(1): 35-42.
[20].贾春燕, 刘海涛. 封闭处理对超声波辅助制备的锌系磷化膜耐蚀性的影响[J]. 电镀与精饰, 2024, 46(9): 48-55.
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