| 摘要 |
A nickel-iron alloy article having a solderability is obtained by electroplating a nickel-iron alloy material with nickel to an extent such that the resulting nickel-plated material exhibits a color tone intermediate between the color tone of the nickel-iron alloy and the color tone of nickel, and immediately thereafter, electro-plating the nickel-plated material with gold, silver or palladium, or an alloy thereof, to an extent such that the resulting plated material exhibits a color tone intermediate between the color tone of the nickel-plated material and the color tone of the gold, silver, palladium or alloy thereof used. |
