MANUFACTURING METHOD OF ALUMINUM MATERIAL FOR ELECTROLYTIC CAPACITOR ELECTRODE, THE ALUMINUM MATERIAL FOR THE ELECTROLYTIC CAPACITOR ELECTRODES, ANODE MATERIAL FOR ALUMINUM ELECTROLYTIC CAPACITORS, AND THE ALUMINUM ELECTROLYTIC CAPACITOR

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing an aluminum material for an electrolytic capacitor electrode with superior etching properties for solving such a problem that the etching properties of the aluminum material, after final annealing is not sufficient owing to the inhomogeneous melting of the aluminum material surface in melting the aluminum material surface layer, by cleaning in the manufacturing method of conventional aluminum materials for electrolytic capacitors. SOLUTION: After heating an aluminum material in an oxidizing atmosphere, an aluminum material surface layer is removed by cleaning. Then, final annealing is performed after that. COPYRIGHT: (C)2005,JPO&NCIPI