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Title:
LUBRICANT FOR DIE LUBRICATION AND METHOD FOR PRODUCING HIGH DENSITY PRODUCT OF FORMING OF IRON BASE POWDER
Document Type and Number:
WIPO Patent Application WO/2001/072457
Kind Code:
A1
Abstract:
A lubricant for die lubrication, characterized in that it is a mixed powder of two or more lubricants having a melting point higher than a predetermined temperature of pressing; and a method for producing a high density product of forming of an iron base powder, which comprises providing a die of room temperature or preheated to a predetermined temperature, charging the above lubricant for die lubrication, attaching the charged lubricant to the wall of the die by introducing it into the die through spraying, introducing an iron base mixed powder containing a lubricant into the die having the above lubricant attached thereto, and molding the powder at room temperature or the predetermined temperature. The above two or more lubricants are preferably selected form among metal soaps, amide type waxes, polyamides, polyethylenes, polypropylenes, acrylic ester polymers, methacrylic ester polymers, fluororesins and laminated lubricants. The method can be employed for producing a high density formed product by one time operation of pressing.

Inventors:
Ozaki, Yukiko (Technical Research Laboratories Kawasaki Steel Corporation 1, Kawasaki-cho Chuo-ku, Chiba-shi Chiba-ken, 260-0835, JP)
Uenosono, Satoshi (Technical Research Laboratories Kawasaki Steel Corporation 1, Kawasakicho Chuo-ku, Chiba-shi Chiba-ken, 260-0835, JP)
Unami, Shigeru (Technical Research Laboratories Kawasaki Steel Corporation 1, Kawasakicho Chuo-ku, Chiba-shi Chiba, 260-0835, JP)
Application Number:
PCT/JP2001/002358
Publication Date:
October 04, 2001
Filing Date:
March 23, 2001
Export Citation:
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Assignee:
KAWASAKI STEEL CORPORATION (1-28, Kitahonmachi-dori 1-chome Chuo-ku Kobe-shi Kyogo-ken, 651-0075, JP)
International Classes:
C10M129/40; B22F1/00; B22F3/02; B22F3/035; B30B15/00; C10M103/02; C10M103/06; C10M129/44; C10M133/06; C10M133/16; C10M133/42; C10M143/02; C10M143/04; C10M145/14; C10M147/02; C10M149/18; C22C33/02; C10N10/02; C10N10/04; C10N10/12; C10N20/06; C10N40/36; (IPC1-7): B22F3/02
Foreign References:
US3995979A1976-12-07
EP0225803A11987-06-16
JPH02240202A1990-09-25
JPH11193404A1999-07-21
Other References:
See also references of EP 1199124A1
Attorney, Agent or Firm:
Ochiai, Kenichiro (Tokyo Head Office, Kawasaki Steel Corporation Hibiya Kokusai Bldg. 2-3, Uchisaiwaicho 2-chome Chiyoda-ku Tokyo, 100-0011, JP)
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