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Terminal plating material, and terminal, terminal-equipped electric wire and wire harness using the same

A terminal plating and plating technology, which is applied to the parts, circuits, coupling devices, etc. of connecting devices, can solve the problems of not very high heat resistance, high resistance of tin plating, and deterioration of tin plating.

Active Publication Date: 2018-08-07
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the tin plating typically used in gasoline vehicles has high electrical resistance, so it tends to generate heat
In addition, since the heat resistance is not very high, there is a concern that the tin plating may be deteriorated due to the heat

Method used

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  • Terminal plating material, and terminal, terminal-equipped electric wire and wire harness using the same
  • Terminal plating material, and terminal, terminal-equipped electric wire and wire harness using the same
  • Terminal plating material, and terminal, terminal-equipped electric wire and wire harness using the same

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Embodiment

[0070] Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.

[0071] First, a pretreatment of the metal substrate as the material to be plated is carried out. Specifically, the metal substrate was cleaned by alkali degreasing, and immersed in 10% sulfuric acid for 2 minutes for acid leaching, followed by cleaning with water. For the metal base, a C1020-H copper plate specified in JIS H3100:2012 (copper and copper alloy sheets, plates, and strips) was used.

[0072] Next, a nickel plating layer is formed on the surface of the metal substrate. Specifically, the pretreated metal substrate was immersed in the plating bath for nickel plating, and a DC stabilized power supply was used at 5A / dm 2 Under the conditions of the current density, the electrolysis time of 30 seconds, and the plating bath temperature of 55°C, it was subjected to constant current e...

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Abstract

A terminal plating material (1) includes a metal substrate (2), and a silver-tin alloy plating layer (3) containing a silver-tin alloy, arranged on the metal substrate (2). The silver-tin alloy plating layer (3) contains an inter-metallic compound of silver and tin, the Vickers hardness of the surface of the silver-tin alloy plating layer (3) in the terminal plating material is 250 Hv or more, andthe surface roughness of the silver-tin alloy plating layer (3) is 0.60 [mu]mRa or less. Further, a terminal (10) is formed from the terminal plating material (1). A terminal-equipped electric wire (20) includes the terminal (10). A wire harness (40) includes the terminal-equipped electric wire (20).

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the benefit of Japanese Patent Application No. 2017-010170 filed on January 24, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a terminal plating material, as well as a terminal, a terminal-equipped electric wire, and a wire harness using the terminal-equipped electric wire. More particularly, the present invention relates to a terminal plating material, and a terminal, a terminal-fitted wire, and a wire harness using the terminal-fitted wire, which have high abrasion resistance while minimizing an increase in contact resistance. Background technique [0004] In recent years, demands for hybrid vehicles and electric vehicles have increased, and high current flows through terminals of charging connectors used in these vehicles. [0005] However, the tin plating generally used in gasoline vehicles ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/03C25D3/64C25D5/12
CPCC25D3/64C25D5/12H01R13/035C25D5/611C25D7/00C25D3/12C25D3/46H01R13/03C22C5/06H01R4/184C25D7/0607
Inventor 田村畅之池谷隼人加山忍
Owner YAZAKI CORP