Title:
MATERIAL FOR TRILAMINAR STAINLESS STEEL CLAD STEEL SHEET, PROCESS FOR PRODUCING THICK SHEET OR STEEL SHEET FOR SOLID POLYMER TYPE FUEL CELL SEPARATOR, AND SOLID POLYMER TYPE FUEL CELL SEPARATOR
Document Type and Number:
WIPO Patent Application WO/2007/032439
Kind Code:
A1
Abstract:
A process in which a material for clad steel sheet composed of a 0 to 0.3% B stainless steel
as an inside layer material combined with, superimposed on both major surfaces thereof,
0.3 to 2.5% B stainless steels as an outer layer material is produced through the
following steps of: step (1): disposing on side faces of the outer layer material
protection materials with a length greater than those of the side faces, disposing
a tab material on each end portion of the protection materials, and effecting
bonding between tab material and protection material and between outer layer
material and protection material, step (2): superimposing the outer layer material
having portions of the protection materials bonded to the tab materials removed
therefrom on the inside layer material to thereby obtain a combined material,
and step (3): bonding together boundary regions of peripheral four side faces
of the combined material. Further, the material produced by the above process
is heated and subjected to preliminary rolling, hot rolling and cold rolling
into a trilaminar stainless steel clad steel sheet for fuel cell separator, or
solid polymer type fuel cell separator.
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Inventors:
KANBE MOTOMICHI (JP)
USHIO KUNIHIKO (JP)
YAZAWA TAKEO (JP)
YAMAMOTO HIDEAKI (JP)
TARUTANI YOSHIO (JP)
SEKI AKIRA (JP)
USHIO KUNIHIKO (JP)
YAZAWA TAKEO (JP)
YAMAMOTO HIDEAKI (JP)
TARUTANI YOSHIO (JP)
SEKI AKIRA (JP)
Application Number:
PCT/JP2006/318275
Publication Date:
March 22, 2007
Filing Date:
September 14, 2006
Export Citation:
Assignee:
SUMITOMO METAL IND (JP)
KANBE MOTOMICHI (JP)
USHIO KUNIHIKO (JP)
YAZAWA TAKEO (JP)
YAMAMOTO HIDEAKI (JP)
TARUTANI YOSHIO (JP)
SEKI AKIRA (JP)
KANBE MOTOMICHI (JP)
USHIO KUNIHIKO (JP)
YAZAWA TAKEO (JP)
YAMAMOTO HIDEAKI (JP)
TARUTANI YOSHIO (JP)
SEKI AKIRA (JP)
International Classes:
B23K20/00; B21B1/38; B21B3/02; B23K15/00; B23K26/21; B23K26/32; B32B15/01; C22C38/00; C22C38/54; C22C38/58; H01M8/02; H01M8/10; B23K101/36; B23K103/04
Foreign References:
| JPH04253506A | 1992-09-09 | |||
| JP2001239364A | 2001-09-04 | |||
| JPH04305384A | 1992-10-28 | |||
| US3795042A | 1974-03-05 |
Other References:
See also references of EP 1925390A4
None
None
Attorney, Agent or Firm:
MORI, Michio (Amagasaki Building 17-23, Higashinaniwa-cho 5-chom, Amagasaki-shi Hyogo, JP)
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