低压铝箔矩形波交流电预处理探析  

Pretreatment of Aluminum Electrode Foil for Low Voltage Capacitors by Square Wave AC

作　　者：殷禄华 王建中[1] 王广祥[1] 严季新[1] 

机构地区：[1]江苏中联科技集团,江苏通州226361

出　　处：《电子元件与材料》2003年第6期17-19,共3页Electronic Components And Materials

摘　　要：在低酸度电解液中对高纯低压电子铝箔采用低频矩形波交流电的预处理工艺,产生较为均匀的初期蚀孔,使得后段腐蚀过程铝箔表面溶解减少,海绵层厚度增加,比电容量提高。具体分析了预处理矩形波交流电电流频率f、电流密度J、处理时间t、处理温度θ以及cAl3+/ cH+值对比电容量C的影响。Aluminum foil for low voltage capacitors was pretreated in electrolytic solution of low acid concentration by square wave AC at low frequency. With the pretreatment, uniform nucleate pits are produced; therefore, in the following electrochemical corrosion, less foil surface is dissolved and spongy thickness and specific capacitance increase. The influence on specific capacitance of current frequency, current density, pretreatment time, solution temperature and the ratio of cAl3+/cH+ is analyzed.

关 键 词：低压铝箔 矩形波交流电 预处理 

分 类 号：TM535.2[电气工程—电器]