| 摘要 |
PROBLEM TO BE SOLVED: To obtain a conductor having excellent conducting properties and acoustic properties.SOLUTION: Provided is a method for producing a conductor for acoustic use where an oxygen-free copper wire is subjected to forging in such a manner that the crystal grains and crystal grain boundaries of a shape oriented to the radial direction of the oxygen-free copper wire are deformed to the longitudinal direction of the oxygen-free copper wire and diameter reduction is caused, thereafter, the oxygen-free copper wire is subjected to wire drawing so as to be distracted, and successively, the oxygen-free copper is annealed. By forming the crystal grain and grain boundaries oriented to the longitudinal direction, the flow of electricity is made smooth. |
