| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of electric contact material capable of improving fixing property of graphite contained in a metal body, and an electric contact material. SOLUTION: Silver plating 8 is formed on the surface of a parent material of the electric contact material 10 by electric plating. In doing so, powder of graphite 9 is mixed into a plating liquid, so that the graphite 9 is dispersed in the silver plating 8. Since the graphite itself has lubrication action, when a material with the silver plating 8 containing graphite 9 is used as an electric contact material 10, lubricants such as grease or oil do not have to be coated, therefore, the electric contact material 10 is used as grease-less sliding contacts. After forming the silver plating, the electric contact material 10 is put under temperature raising treatment to melt a surface 8a of the silver plating 8, and the graphite 9 on the surface 8a is fixed on the silver plating 8. COPYRIGHT: (C)2007,JPO&INPIT
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