【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。更多还原

【Abstract】 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.更多还原