Title:
METHOD FOR PRODUCING FINE CRYSTAL METAL FOR GOLF CLUB
Document Type and Number:
WIPO Patent Application WO/2004/078387
Kind Code:
A1
Abstract:
An iron base alloy, which is produced by a method comprising mixing a powder, fiber or foil of iron with at least one of stainless steel and Al in the form of a powder, fiber or foil and optionally with another metal such as Ni or Cr, and then subjecting the resultant mixture to mechanical alloying, to thereby prepare a metal powder comprising the above metals and having finely formed crystal grains; and a metallic material having a predetermined shape which is manufactured by forming the metal powder by plasma discharge sintering or the like. The resultant metal material has finely formed crystal grains, exhibits high strength and high hardness, and thus can be suitably used as a member for a golf club, particularly, for a face of a golf club head. Further, an iron base alloy having a specific gravity lower than that of a generally available iron base alloy, such as stainless steel, can be produced through using an appropriate additive element.
Inventors:
KUWANO HISASHI (JP)
KAWASE HARUO (JP)
SODA TAKEO (JP)
SASAKI YASUSHI (JP)
KAWASE HARUO (JP)
SODA TAKEO (JP)
SASAKI YASUSHI (JP)
Application Number:
PCT/JP2004/001754
Publication Date:
September 16, 2004
Filing Date:
February 17, 2004
Export Citation:
Assignee:
MARUMAN AND CO LTD (JP)
KUWANO HISASHI (JP)
KAWASE HARUO (JP)
SODA TAKEO (JP)
SASAKI YASUSHI (JP)
KUWANO HISASHI (JP)
KAWASE HARUO (JP)
SODA TAKEO (JP)
SASAKI YASUSHI (JP)
International Classes:
A63B53/04; A63B53/12; B22F1/00; B22F3/14; B22F7/08; C22C33/02; A63B102/32; (IPC1-7): B22F1/00; B22F3/14; B22F7/08; C22C33/02; C22C38/00; A63B53/04; A63B53/12
Foreign References:
| JPH10265867A | 1998-10-06 | |||
| JPH05117716A | 1993-05-14 | |||
| JPH1157081A | 1999-03-02 | |||
| JP2002263224A | 2002-09-17 | |||
| JP2002102398A | 2002-04-09 | |||
| JP2002058761A | 2002-02-26 | |||
| JP2003250936A | 2003-09-09 |
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