成品退火升温速率对中高压电子铝箔性能的影响  

The effect of finished product annealing heating rate on the properties of medium and high voltage electronic aluminum foil

作　　者：邓玉萍 覃雪 Deng Yuping;Qin Xue(Guangxi Guangtou Zhengrun New Material Technology Co.,Ltd.,Hezhou 542800,China)

机构地区：[1]广西广投正润新材料科技有限公司,贺州542800

出　　处：《铝加工》2024年第1期58-62,共5页Aluminium Fabrication

摘　　要：采用不同的退火升温速率对铝电解电容器用中高压电子铝箔进行成品退火,并利用EBSD技术、蚀坑法分析其晶粒尺寸、立方织构含量及分布规律。结果表明,电子铝箔的平均晶粒尺寸随着升温速率的增大呈减小趋势,当升温速率为10℃/min时,平均晶粒尺寸最小;小角度晶界占比随退火升温速率的增加呈增大趋势;立方织构占有率随着升温速率的增大呈先升高后减小的趋势,在8℃/min时获得的立方织构占有率最高,且腐蚀箔上由立方织构腐蚀得到的正方形蚀坑数量多且分布均匀。研究结果为实际生产工艺的设计和改善产品性能、质量提供理论指导。The finished product of medium and high voltage electronic aluminum foil for aluminium electrolytic capacitor was an⁃nealed at different annealing heating rates,and its grain size,cubic texture content and distribution were analyzed by EBSD technology and etch pit method.The results showed that the average grain size of electronic aluminum foil decreases with the increase of heating rate;when the heating rate is 10℃/min,the average grain size is the smallest;the proportion of small angle grain boundaries increases with the increase of annealing heating rate;the occupancy rate of cubic texture shows a trend of increasing firstly and decreasing later with the increase of heating rate;the occupancy rate of cubic texture obtained at 8℃/min is the highest,and the number of square corrosion pits obtained from cubic texture corrosion on the corroded foil is large and evenly distributed.The research results provide theoretical guidance for the design of actual production processes and the improvement of product performance and quality.

关 键 词：中高压电子铝箔 成品退火 升温速率 立方织构 晶粒尺寸 

分 类 号：TG166.3[金属学及工艺—热处理] TG146.21[金属学及工艺—金属学]