Email Alert  RSS
工艺探讨

户外隔离开关用银 - 石墨烯镀层的制备及性能研究

展开
  • 1. 国网江西省电力有限公司电力科学研究院; 2. 国网江西省电力有限公司; 3. 南昌航空大学材料科学与工程学院
裴 锋(1978-),教授级高级工程师,主要从事电力系统材料腐蚀防护研究,电话:13970033897,E - mail: 26067852@qq.com

收稿日期: 2021-09-18

  修回日期: 2021-10-20

  录用日期: 2021-11-24

  网络出版日期: 2023-12-27

Study on Preparation and Properties of Silver - Graphene Coating for Outdoor Isolating Switch

Expand
  • 1. State Grid Jiangxi Electric Power Research Institute, Nanchang 330006, China; 2. State Grid JiangXi Electric Power Co., Ltd., Nanchang 330096, China; 3. School of Materials Science and Engineering, Nanchang Aeronautical University, Nanchang 330063, China

Received date: 2021-09-18

  Revised date: 2021-10-20

  Accepted date: 2021-11-24

  Online published: 2023-12-27

摘要

为提高电网隔离开关用纯银镀层的综合性能,采用无氰环保电镀法分别制备了纯银、银 - 石墨烯复合镀层,对比研究了无氰电镀纯银镀层、银 - 石墨烯复合镀层的微观组织及基本性能。结果表明:石墨烯较均匀地分布在银镀层中,随着石墨烯含量的增加,部分区域出现团聚现象;加入石墨烯后镀层仍能保持良好的导电率,改善了镀层的导热性能,同时,显著提升了材料的硬度、耐磨性能和耐腐蚀性能,相比纯银镀层,复合镀层的耐磨性能提高了1倍以上,耐腐蚀性提高了约40%,复合镀层具备优异的综合性能,有助于提升开关触头的使用寿命。

本文引用格式

裴锋, 周宇, 田旭, 刘欣, 叶志国 . 户外隔离开关用银 - 石墨烯镀层的制备及性能研究[J]. 材料保护, 2022 , 55(3) : 87 -92 . DOI: 10.16577/j.issn.1001-1560.2022.0072

Abstract

For improving the comprehensive performance of pure silver coating for power grid isolating switch, pure silver and silver - graphene composite coatings were prepared by cyanide - free environmental protection electroplating method, respectively. The microstructure and basic properties of pure silver and silver - graphite composite coatings prepared by cyanide - free electroplating method were studied. Results showed that graphene was evenly distributed in the silver coating, and with increasing the content of graphene, the aggregations of graphene were observed in some regions. Furthermore, with the addition of graphene, the coatings could still maintain good conductivity and the thermal conductivity of the coating was improved. Meanwhile, the hardness, wear resistance and corrosion resistance of the material were significantly improved. Compared with pure silver coatings, the wear resistance of composite coatings increased by more than 1 time, and the corrosion resistance increased by more than 40%. In general, the silver - graphene composite coating possessed excellent comprehensive performances, which was conducive to improve the service life of the switch contact.
文章导航

/