| 摘要 |
(task) Are equipped excellent curveproof properties and excellent bendproof properties at the same time. (solution) Multiple crystal faces in parallel with a main surface comprise {022} face, {002} face, {113} face, {111} face, and {133} face. An intensity ratio of a diffraction peak of each crystal face, which is obtained from an X-ray diffraction measurement with using a 2θ/θ method about the main surface, and also converted to make a total 100, is I {022} + I {002} ≥ 80.0, and I {111} ≤ 5.0. When a graph for depicting an average intensity of a diffraction peak of the {111} face, which is measured by using X-ray Pole-Figure method, is made, a vertical axis-intercept of a line, which connects between mutual average intensities of a diffraction peak of the {111} face at 47 degrees to 53 degrees of a tilt angle, is more than and equal to ¼ of a maximum value of an average intensity of a diffraction peak of the {111} face at 15 degrees to 90 degrees of a tilt angle. [Reference numerals] (AA) Start a process for manufacturing rolled copper foil;(BB) Repeated process;(CC) (Repetition a predetermined number of times) repeated process;(DD) End the process for manufacturing rolled copper foil;(S10) Process for preparing an ingot;(S20) Hot rolling process;(S31) Cold rolling process;(S32) Annealing process;(S40) Final cold rolling process;(S50) Surface treatment process |
