CATHODE ELECTRODE MADE FROM TITANIUM FOR MANUFACTURING ELECTROLYTIC COPPER FOIL, ROTATION CATHODE DRUM USING THE CATHODE ELECTRODE MADE FROM TITANIUM, METHOD FOR MANUFACTURING TITANIUM MATERIAL USED FOR CATHODE ELECTRODE MADE FROM TITANIUM, AND CORRECTION OF TITANIUM MATERIAL FOR CATHODE ELECTRODE MADE FROM TITANIUM

摘要

PROBLEM TO BE SOLVED: To provide a cathode electrode for manufacturing an electrolytic copper foil, which can be continuously used stably for a long time of 3000 hours or more, reduces maintenance work as much as possible, and can contribute to reduction of running cost for manufacturing the electrolytic copper foil. SOLUTION: The cathode electrode made from titanium consisting of a titanium material used for obtaining the electrolytic copper foil with a copper electrolyte, is characterized in that the titanium material has a crystal size number of 7.0 or more, and an initial hydrogen content of 35 ppm or less. A method for manufacturing the titanium material used as the cathode electrode made from titanium or the like is also provided.