SILVER COATED MATERIAL

• Main Authors: KAWATA SHINGO, TACHIBANA AKIRA, OKUNO YOSHIKAZU, KITAGAWA SHUICHI
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2018
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS

PROBLEM TO BE SOLVED: To provide a silver coated material with a surface having a small coefficient of dynamic friction.SOLUTION: The silver coated material comprises a metallic substrate 1 and a silver coating film 2 composed of silver or silver alloy and coating a surface 1a of the metallic substrate 1. The silver coating film 2 is arranged on an outermost surface of the silver coated material. A plurality of granular projections 2b are formed on a surface 2a of the silver coating film 2, the surface 2a of the silver coating film 2 has an average spacing of local peaks of 0.3 μm to 3.0 μm and a ten point average roughness Rz of 0.3 μm to 10.0 μm.SELECTED DRAWING: Figure 1 【課題】表面の動摩擦係数が小さい銀被覆材料を提供する。【解決手段】銀被覆材料は、金属製基材１と、銀又は銀合金からなり金属製基材１の表面１ａを被覆する銀被膜２と、を備える。そして、銀被膜２は銀被覆材料の最表面に配されている。また、銀被膜２の表面２ａには粒状の突起２ｂが複数形成されていて、銀被膜２の表面２ａの局部山頂の平均間隔Ｓが０．３μｍ以上３．０μｍ以下であり且つ十点平均粗さＲｚが０．３μｍ以上１０．０μｍ以下である。【選択図】図１