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Patent Searching and Data


Title:
IRON-BASE POWDER MIXTURE FOR POWDER METALLURGY, METHOD FOR PRODUCTION THEREOF AND METHOD FOR PREPARING FORMED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2001/049439
Kind Code:
A1
Abstract:
An iron-base powder mixture containing an iron-base powder, a lubricant having been fused and adhered to the iron-base powder, a powder for an alloy adhered to the iron-base powder through the lubricant, and a free lubricant powder, characterized in that one or more of the above iron-base powder, the above lubricant having been fused and adhered to the iron-base powder, the above free lubricant powder, and the above powder for an alloy have a surface which is coated with an organosiloxane with a covering percentage of 80 % or more; and a method for producing the iron-base powder mixture. The iron-base powder mixture is excellent in flowability and formability, and also is reduced in the temperature dependency of flowability and green density. It is preferred that the organosiloxane has a phenyl group, the lubricant having been fused and adhered to the iron-base powder is a co-molten product of a calcium soap with a lithium soap or a co-molten product of a calcium soap with an amide lubricant, and the free lubricant is a lithium soap or a mixed powder of an amide lubricant with a poly(methyl methacrylate) powder.

Inventors:
OZAKI YUKIKO
UENOSONO SATOSHI
OGURA KUNIAKI
Application Number:
PCT/JP2000/009243
Publication Date:
July 12, 2001
Filing Date:
December 26, 2000
Export Citation:
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Assignee:
KAWASAKI STEEL CO (JP)
International Classes:
B22F1/10; B22F1/102; B22F1/148; B22F3/02; C22C33/02; (IPC1-7): B22F1/02; B22F3/02; C10M105/22; C10M105/68
Foreign References:
EP0913220A11999-05-06
JPH08259847A1996-10-08
JPS5923801A1984-02-07
Other References:
See also references of EP 1160032A4
Attorney, Agent or Firm:
Ochiai, Kenichiro (Kawasaki Steel Corporation Hibiya Kokusai Bldg. 2-3, Uchisaiwaicho 2-chome Chiyoda-ku Tokyo, JP)
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