浸锌过程中晶须现象及原因探讨  

Phenomenon of Crystal Whisker in Zincate Process and Exploration of Its Reasons

作　　者：蒋丽敏[1] 李宁[2] 黄晓梅 黎德育[2] 

机构地区：[1]上海宝钢设备检修有限公司宝钢机械厂,上海201900 [2]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001

出　　处：《电镀与环保》2006年第4期31-32,共2页Electroplating & Pollution Control

摘　　要：在铝上浸锌过程中,在浸锌最初20 s内晶粒之间存在晶须现象。通过晶粒与晶须处的成分分析,结果发现,晶须处铜、铁、镍的含量要高于晶粒处的含量,由此推测:晶须主要是由于在浸锌初期,铜、铁、镍离子优先于锌离子放电而产生,浸锌后期主要是锌离子的放电沉积。It is found that there is whisker phenomenon in the first 20 seconds after the beginning of zincate process. The composition analysis of the crystal grains and whiskers shows that the content of copper, iron and nickel in whisker area is higher than that in crystallization area. It is concluded that the reasons for the formation of crystal whiskers are due to the fact that the ions of copper, iron and nickel are prior to the discharge of zinc ions at the initial stage of zincate process while the deposition of zinc ions is dominant in the later stage of the process.

关 键 词：高硅铝合金 浸锌 晶须 形貌 成分 

分 类 号：TQ153[化学工程—电化学工业]