| 摘要 |
PURPOSE:To remove residual stress of a hard drawn copper wire using a relatively simple means by passing the wire through a rotating device having bending members arranged at small spaces to give bending distortion to the wire and rotating the rotating device. CONSTITUTION:A rotary box 2 is rotated while pulling the hard drawn copper wire 1 in the direction of the arrow through a through hole 3, recessed parts 4', 5', 6' and a through hole 3'. When the copper wire 1 passes through the rotating device while rotating on its own axis, the bending distortion is given to the copper wire by the action of the recessed part 5' positioned at the deviated position of a bending member 5. Accordingly, the bending distortion that generates plastic deformation in all radial direction of the twisted wire is given by the presence of bending members 4, 5, 6, and the residual stress of the wire is removed. |
