| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper wire having a half-softening temperature lower than tough pitch copper (3N copper) and oxygen free copper (4N copper) and a tensile strength higher than high purity copper (6N copper), and a method for manufacturing the same.SOLUTION: The copper wire formed of a copper wire rod consisting of titanium of 5-55 massppm, sulfur of 3-12 massppm, oxygen of 2-30 massppm and the remainder of copper and inevitable impurities comprises: a first crystal having a crystal orientation [111] and including at least one of twin crystals in the crystal; and a second crystal being one or more crystals adjacent to the first crystal, having a crystal orientation [111] having a rotation angle on an atomic plane different from that of the first crystal and including at least one of twin crystals in the crystal. |
