| 摘要 |
PURPOSE:To obtain a conductive spring material having superior characteristic of spring as well as conductivity at low cost, by incorporating specific percentage of Ni, Be, and Si to Cu. CONSTITUTION:The Cu alloy consisting of, by weight ratio, 1.8-3.0% Ni, 0.15-0.35% Be, 0.2-1.2% Si, and the balance Cu with inevitable impurities is manufactured. In this way, the conductive spring manufactured at reduced material cost, gaining high strength and bending formability and having improved property of relaxation of stress can be obtained.
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