METALLIC MATERIAL FOR PLASTIC WORKING WITH GRADIENT TWO-LAYER LUBRICANT COATING FILM AND PROCESS FOR PRODUCING THE SAME

Title:

METALLIC MATERIAL FOR PLASTIC WORKING WITH GRADIENT TWO-LAYER LUBRICANT COATING FILM AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2002/072345

Kind Code:

A1

Abstract:

A metallic material for plastic working which has excellent lubricating properties. The metallic material for plastic working has a gradient two-layer lubricant layer which comprises a base layer located on the metal side, having a thickness of 0.1 to 15.0 $g(m)m, and comprising an inorganic compound as the main component and a lubricant layer located on the surface side, having a thickness of 0.1 to 10.0 $g(m)m, and comprising a lubricant as the main component and in which the ratio of the thickness of the lubricant layer to that of the base layer is from 0.2 to 3.0. The inorganic compound is preferably a phosphate, sulfate, borate, silicate, molybdate, tungstate, etc. The lubricant is preferably a metal soap, wax, polytetrafluoroethylene, molybdenum disulfide, graphite, etc. The metallic material may be iron, steel, stainless steel, etc. The gradient two-layer lubricant layer can be formed by bringing the surface of a metallic material into contact with a water-based treating liquid containing an inorganic compound and a lubricant as major ingredients and then drying the surface.

Inventors:

YAMAGUCHI HIDEHIRO (JP)
IMAI YASUO (JP)
YOSHIDA MASAYUKI (JP)

Application Number:

PCT/JP2002/002072

Publication Date:

September 19, 2002

Filing Date:

March 06, 2002

Export Citation:

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Assignee:

NIHON PARKERIZING (JP)
YAMAGUCHI HIDEHIRO (JP)
IMAI YASUO (JP)
YOSHIDA MASAYUKI (JP)

International Classes:

B32B15/04; B32B9/00; C10M103/02; C10M103/06; C10M105/24; C10M107/04; C10M107/06; C10M107/38; C10M109/00; C10M111/00; C10M111/04; C23C22/07; C23C22/40; C23C22/42; C23C22/83; B05D5/08; C10N10/02; C10N10/04; C10N10/06; C10N10/12; C10N40/24; C10N50/02; C10N50/08; (IPC1-7): B32B15/08; B05D7/14; C23C22/07; C23C22/40; C23C22/42

Foreign References:

JP2001049454A	2001-02-20
JPH09239896A	1997-09-16
JPH09156030A	1997-06-17
JPH0971873A	1997-03-18
JPH0332783A	1991-02-13
JPH10217394A	1998-08-18
EP0024062A1	1981-02-18

Attorney, Agent or Firm:

Tanaka, Hiroshi (Toranomon 1-chome Minato-ku, Tokyo, JP)

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