脉冲电流对锌酸盐镀锌层的影响  

Effects of Pulse Current on the Zinc Coating Formed in Zincate Bath

作　　者：张景双[1] 翟淑芳[1] 屠振密[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《电镀与环保》2002年第5期5-6,共2页Electroplating & Pollution Control

摘　　要：研究了在锌酸盐镀锌体系中采用脉冲电流时 ,脉冲频率、脉冲的占空比、反向电流对镀层外观、耐蚀性的影响。发现在最佳脉冲条件下得到的镀锌层比直流电镀得到的镀层光亮、结晶细致 ,耐蚀性能有很大的提高。The effects of pulse current, frequency, duty ratio and inverse current in zincate system on the appearance and corrosion resistance of zinc coating are investigated. It is found that the zinc coating obtained under optimal pulse conditions in this system is brighter, finer in crystallization and much improved in corrosion resistance as compared with that gained from direct current process.

关 键 词：脉冲电流 锌酸盐 脉冲电镀 镀锌 耐蚀性 电镀 镀层影响 

分 类 号：TQ153.15[化学工程—电化学工业]