| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire-drawing method in which high rectilinear propagation performance can always be achieved by making a die follow the change of an ultra-fine wire during wire-drawing even if the hole shape or the like of a finishing die is subtly changed, and a wire-drawing device therefor. SOLUTION: The wire-drawing method for the ultra-fine wire is composed as follows. The ultra-fine wire is inserted into holes of a plurality of dies having the holes for reducing the diameter of the ultra-fine wire L. Constant tensile force is applied to the ultra-fine wire with a winding spool. A progress route of the ultra-fine wire, to which the tensile force is applied, is determined with at least a pair of guides. The ultra-fine wire is inserted into the hole of the finishing die 10 having the hole 11 for reducing the diameter of the ultra-fine wire to a final wire diameter. Accordingly, the ultra-fine wire is processed to the final wire diameter. Horizontal and/or vertical one end of the finishing die is held with a spring body of a horizontal angle adjusting mechanism and/or a vertical angle adjusting mechanism. On the other hand, the horizontal and/or vertical other end of the finishing die is brought into contact with the tip of a finely feeding means. As a result, the angle adjustment of the horizontal and/or vertical direction of the hole axis of the finishing die can be conducted. COPYRIGHT: (C)2005,JPO&NCIPI
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