| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner electrode for inner plating of a long-sized body capable of uniformly plating the inner surface of a long tubular article.SOLUTION: A long inner electrode 10 inserted into a tubular article 20 and used to electroplate the inner surface of the tubular article 20 includes: an inner electrode wire 11 formed with an electric conductor having linear flexibility; and an inner electrode insulator 12 for preventing the inner electrode wire 11 and a plating solution 2 from contacting with each other as well as for preventing the inner surface of the tubular article 20 and the inner electrode wire 11 from contacting with each other. The inner electrode 10 includes a feeding point 16 for supplying a current to a root portion 17 in the inner electrode 10 and supplying a current to a part of the inner electrode wire 11 away from the root portion 17. |
