Electrical contact material, terminal fitting, connector, and wire harness
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorsYoshimasa Shirai, Yasushi Saito, Kingo Furukawa, Mitsuhiro Kumondai, Akihisa Hosoe
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Abstract
The electrical contact material includes a base material, a coating layer provided on a surface of the base material, and an oxide layer provided on a surface of the coating layer. The base material contains Cu. The coating layer includes an undercoat layer, a first layer, and a second layer that are provided in that order from the base material side. The undercoat layer contains Ni. The first layer contains Ni, Zn, Cu, and Sn. The second layer contains Sn. The oxide layer is constituted by an oxide containing Zn, Cu, and Sn. The undercoat layer has a thickness larger than 0.5 μm.
Claims9
An electrical contact material comprising:
- a base material;
- a coating layer that is provided on a surface of the base material;
- and
- an oxide layer that is provided on a surface of the coating layer,
- wherein the base material contains Cu,
- the coating layer includes an undercoat layer, a first layer, and a second layer that are provided in that order from the base material side,
- the undercoat layer contains Ni,
- the first layer contains Ni, Zn, Cu, and Sn,
- the second layer contains Sn,
- the oxide layer is constituted by an oxide containing Zn, Cu, and Sn, and
- the undercoat layer has a thickness larger than 0.5 μm.
Dependencies are inferred from the claim text.