Golf club head and manufacturing method thereof
AssigneeSumitomo Rubber Industries, Ltd.
InventorMinoru Saeki
Life of this patent
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Abstract
A partially or entirely exposed metal portion of a club head body is formed with a foundation layer on the surface thereof by means of electroplating, and the foundation layer is covered with a non-electrolytic nickel-boron plating. Moreover, this non-electrolytic nickel-boron plating has a chromate film applied to the surface thereof by using a chromate treatment. The foregoing foundation layer comprises a first electrolytic nickel plating for preventing rust of the head body and a second electrolytic nickel plating for improving the close contact of the non-electrolytic nickel-boron plating with the foundation layer.
Claims9
A golf club head comprising:
- a head body coated with an electrolytic foundation layer on a partial or entire outer surface thereof, the foundation layer being covered with a non-electrolytic nickel-boron plating, said non-electrolytic nickel-boron plating being covered with a chromate film.
A method for manufacturing a golf club head, comprising the steps of:
- forming an electrolytic foundation layer on an outer surface of a head body by using electroplating, immersing the head body in a nickel-boron solution to form a non-electrolytic nickel-boron plating over the foundation layer, and subjecting said head body to a chromate treatment to allow a chromate film to be formed over the non-electrolytic nickel-boron plating.
Dependencies are inferred from the claim text.