强立方织构超薄型高压阳极铝箔的研制及检测

Development and Examination of Ultra-Thin High Voltage Anode Aluminum Foil with Strong Cube Texture

采用增加冷轧道次、提高中间退火温度等手段改进了传统高压阳极铝箔的生产工艺,以制备超薄型高压阳极铝箔。并用三维取向分布函数织构定量检测和扫描电子显微镜观察、研究了超薄型高压阳极铝箔的立方织构及其对腐蚀比电容的影响。结果表明,增加冷轧道次有利于铝箔的均匀变形并促进立方织构的生成,较高的中间退火温度可以促使最终退火过程中立方取向晶粒的形核,最终获得很强的立方织构。

The conventional production technology for aluminum foil was modified by means of increasing cold rolling passes and rising intermediate annealing temperature to prepare ultra-thin high voltage anode aluminum foil. To investigate the evolution of cube texture and the specific capacity after corrosion treatment, the quantitative texture analysis was carried out based on 3-dimensional orientation distribution function and the microstructure was observed by scanning electron microscope. It was found that more rolling passes lead to homogenous rolling deformation and benefit the formation of final cube texture. The higher intermediate annealing temperature could promote the nucleation of cube grains, which will induce strong cube texture.