Silver-plated product and method for producing same
AssigneeDowa Metaltech Co., Ltd.
InventorsYutaro Hirai, Kentaro Arai, Yosuke Sato
Life of this patent
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Abstract
A silver-plated product which has more excellent minute sliding abrasion resistance property than that of conventional silver-plated products, and a method for producing the same. The silver-plated product is produced by electroplating a base material 10 of copper or a copper alloy to form an underlying plating layer 12 of nickel or a nickel alloy, a first silver-plating layer of silver (lower silver-plating layer) 14, a zinc-plating layer 16 of zinc serving as an intermediate plating layer, and a second silver-plating layer of silver (upper silver-plating layer) 18 serving as a surface layer, in this order from the base material 10.
Claims25
A silver-plated product comprising:
- a base material made of copper or a copper alloy;
- a first silver-plating layer;
- a zinc-plating layer serving as an intermediate plating layer;
- and
- a second silver-plating layer serving as a surface layer, and
- wherein the first silver-plating layer, the zinc-plating layer and the second silver-plating layer are formed in this order from the base material.
A silver-plated product comprising:
- a base material;
- a first silver-plating layer;
- a zinc-plating layer serving as an intermediate plating layer;
- and
- a second silver-plating layer serving as a surface layer,
- wherein the first silver-plating layer, the zinc-plating layer and the second silver-plating layer are formed in this order from the base material, and
- wherein the surface layer has a Vickers hardness HV of 80 to 220, the Vickers hardness HV being measured in accordance with JIS Z2244 by applying a measuring load of 10 gf for 10 seconds.
Dependencies are inferred from the claim text.