铸铝合金镀银前浸锌工艺的研究  

Study on Zinc Dipping Process of Casting Aluminum Alloy Before Silver Plating

作　　者：邓乐萍 徐曦 胡文博 DENG Leping;XU Xi;HU Wenbo(Xi'an XD Switchgear Electric Co.Ltd,Xi'an 710077,China)

机构地区：[1]西安西电开关电气有限公司,陕西西安710077

出　　处：《电镀与精饰》2020年第6期27-29,共3页Plating & Finishing

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。In order to solve the problem of coating adhesion of casting aluminum alloy with silver plat⁃ing,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.

关 键 词：铸铝合金 二次浸锌 结合力 热震实验 

分 类 号：TQ153.15[化学工程—电化学工业]