METHOD FOR TREATING SURFACE OF CASTING MOLD AND CASTING MOLD USING SAME

Title:

METHOD FOR TREATING SURFACE OF CASTING MOLD AND CASTING MOLD USING SAME

Document Type and Number:

WIPO Patent Application WO/2010/013770

Kind Code:

A1

Abstract:

Disclosed is a method for treating the surface of a casting mold. The method comprises covering the surface of a casting mold with a carbon film containing at least one nanocarbon compound selected from the group consisting of carbon nanocoils, carbon nanotubes, and carbon nanofilaments and coating fullerenes on the surface of the carbon film. The adoption of the method for a surface, such as a cavity surface of the casting mold, with which a molten molding material such as aluminum comes into contact can suppress sticking of the molten molding material to the mold and can reduce the mold release resistance of a product to improve mold releasing effect. The mold releasing effect can be maintained for a longer period of time than that in the conventional carbon film.

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Inventors:

FURUKAWA YUICHI (JP)
KAWAHARA FUMIO (JP)
MATSUOKA HIDENORI (JP)
KABASAWA HITOSHI (JP)

Application Number:

PCT/JP2009/063559

Publication Date:

February 04, 2010

Filing Date:

July 30, 2009

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
MEC INTERNATIONAL CO LTD (JP)
FURUKAWA YUICHI (JP)
KAWAHARA FUMIO (JP)
MATSUOKA HIDENORI (JP)
KABASAWA HITOSHI (JP)

International Classes:

B22C9/06; B22C3/00; B22D17/20; C01B31/02

Foreign References:

JP2008105082A	2008-05-08
JP2006306010A	2006-11-09
JP2007144499A	2007-06-14
JP2008105082A	2008-05-08

Other References: