Title:
ALUMINUM STRUCTURAL BODY ANODIZING METHOD AND ITS ANODIZER
Document Type and Number:
WIPO Patent Application WO/2003/029527
Kind Code:
A1
Abstract:
Especially, the entire inner surfaces of the aluminum fins arranged into a multilayer structure provided in a structural body are effectively anodized even if the density of aluminum fins is relatively high. An inner surface anodizing method for a structural body (11) has therein at least segmentalized aluminum fins (13) to be anodized of a multilayer structure and passage spaces (14) which are defined between the aluminum fins and through which an electrolyte can flow in a desired direction. By performing anodization while forcing an electrolyte to flow through the passage spaces (14) between the aluminum fins (13) of the structural body (11), a uniform oxide film is formed over the entire inner surfaces of the aluminum fins (13).
Inventors:
KIKUCHI SATORU (JP)
IGARASHI HIDEYUKI (JP)
TRAN TAN FON (JP)
HIROHARA TSUYOSHI (JP)
IGARASHI HIDEYUKI (JP)
TRAN TAN FON (JP)
HIROHARA TSUYOSHI (JP)
Application Number:
PCT/JP2002/010185
Publication Date:
April 10, 2003
Filing Date:
September 30, 2002
Export Citation:
Assignee:
ALUMI SURFACE TECHNOLOGIES CO (JP)
KIKUCHI SATORU (JP)
IGARASHI HIDEYUKI (JP)
TRAN TAN FON (JP)
HIROHARA TSUYOSHI (JP)
KIKUCHI SATORU (JP)
IGARASHI HIDEYUKI (JP)
TRAN TAN FON (JP)
HIROHARA TSUYOSHI (JP)
International Classes:
C25D11/04; (IPC1-7): C25D11/00
Foreign References:
| JPH08243408A | 1996-09-24 |
Attorney, Agent or Firm:
Kawasaki, Takao (Toranomon 1-chome Minato-ku, Tokyo, JP)
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