DENG Leping*,XU Xi,HU Wenbo.Study on Zinc Dipping Process of Casting Aluminum Alloy Before Silver Plating[J].Plating & Finishing,2020,(6):27-29.[doi:10.3969/j.issn.1001-3849.2020.06.0060]
铸铝合金镀银前浸锌工艺的研究
- Title:
- Study on Zinc Dipping Process of Casting Aluminum Alloy Before Silver Plating
- 文献标志码:
- A
- 摘要:
- 为解决铸铝合金镀银件镀层结合力的问题,研究了镀银前浸锌工艺中退锌时间对镀层结合力的影响。通过扫描电子显微镜观察了不同退锌时间下浸锌锌层的表面形貌,通过热震法对镀层结合力进行了测试和评价。结果表明,在退锌时间为15 s时,二次浸锌能得到均匀、致密、较薄的锌层,其镀层结合力最好。
- Abstract:
- In order to solve the problem of coating adhesion of casting aluminum alloy with silver plating, the influence of zinc removal time on the bonding strength of the coating was studied. The surface morphology of dipping zinc was observed by scanning electron microscopy at different demineralization time. The bonding strength of the coating was tested and evaluated by thermal shock method. The results showed that when the zinc removal time was 15 s, the secondary zinc immersion can obtain a uniform, dense and thin zinc layer, and the coating adhesion was the best.
参考文献/References:
[1] 张彦, 杜利峰. B81D缸体气孔、砂眼缺陷的防止措施[J]. 现代铸铁, 2014, 34(2):53-57.
Zhang Y, Du L F. Measures to prevent blowhole and sand inclusion defects of B81D cylinder block[J]. Modern Cast Iron, 2014, 34(2): 53-57 (in Chinese).
[2] 焦承东, 李宾. 粗糙度对镀银层导电性能的影响[J]. 电镀与精饰, 2018, 40(12):20-22.
Jiao C D, Li B. Influence of roughness on the conductivity of silver coating[J]. Plating & Finishing, 2018, 40(12):20-22 (in Chinese).
[3] 黄晓梅, 张密林. 浸锌条件对铝合金浸锌层显微组织的影响[J]. 电镀与精饰, 2008, 30(2):34-37.
Huang X M, Zhang M L. Effect of process conditions on the microstructure of the immersion zinc layer on aluminium alloys[J]. Plating & Finishing, 2008, 30(2): 34-37 (in Chinese).
[4] 黄晓梅, 李宁, 黎德育, 等. 高硅铝铸件镀前浸锌溶液的研究[J]. 表面技术, 2004, 33(6): 72-74.
Huang X M, Li N, Li D Yet al. Study on zinc dipping solution for high Si-Al casting before plating[J]. Surface Technology, 2004, 33(6): 72-74 (in Chinese).
[5] 马静, 李强, 李永刚, 等. Zr-8.8Al合金化学镀前浸锌处理工艺研究[J]. 稀有金属材料与工程, 2015, 44(2):433-437.
Ma J, Li Q, Li Y Get al. Zn-dipping pre-plating process for electro-less plating on Zr-8.8Al alloy[J]. Rare Metal Materials and Engineering, 2015, 44(2):433-437 (in Chinese).
备注/Memo
收稿日期: 2019-11-01;修回日期: 2020-01-28
通信作者: 邓乐萍,email:544292175@qq.com