IRON BASE POWDER MIXTURE FOR POWDER METALLURGY EXCELLENT IN FLUIDITY AND MOLDABILITY, METHOD OF PRODUCTION THEREOF, AND METHOD OF PRODUCTION OF MOLDED ARTICLE BY USING THE IRON BASE POWDER MIXTURE

Title:

IRON BASE POWDER MIXTURE FOR POWDER METALLURGY EXCELLENT IN FLUIDITY AND MOLDABILITY, METHOD OF PRODUCTION THEREOF, AND METHOD OF PRODUCTION OF MOLDED ARTICLE BY USING THE IRON BASE POWDER MIXTURE

Document Type and Number:

WIPO Patent Application WO/1998/041347

Kind Code:

A1

Abstract:

An iron base powder mixture capable of providing excellent fluidity at room temperature and in a warm state and reducing an extruding force in molding and having improved moldability; a method of production of this mixture; and a method of production of a high density molded article by using the mixture. The iron base powder mixture contains iron base powder, a lubricant and alloying powder, and at least one of the components is coated with at least one surface treating agent selected from the group consisting of organoalkoxysilanes, organosilazanes, titanate coupling agents and fluorocoupling agents. The iron base powder mixture is press-molded at a temperature higher than the lowest melting point but lower than the highest melting point of the lubricants contained in the mixture.

Inventors:

OZAKI YUKIKO (JP)
UENOSONO SATOSHI (JP)
OGURA KUNIAKI (JP)

Application Number:

PCT/JP1998/001147

Publication Date:

September 24, 1998

Filing Date:

March 18, 1998

Export Citation:

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Assignee:

KAWASAKI STEEL CO (JP)
OZAKI YUKIKO (JP)
UENOSONO SATOSHI (JP)
OGURA KUNIAKI (JP)

International Classes:

B22F1/10; B22F1/102; B22F1/148; C22C33/02; (IPC1-7): B22F1/02; C22C33/02

Foreign References:

JPH09104901A	1997-04-22
JPH01255602A	1989-10-12
JPH03162502A	1991-07-12
JPH0456702A	1992-02-24
JPS62282418A	1987-12-08

Other References: