Title:
ELECTROLESS PLATED ALUMINUM ALLOY MEMBER AND ITS PRODUCTION METHOD
Document Type and Number:
Japanese Patent JP2002146559
Kind Code:
A
Abstract:
To provide an electroless plated aluminum alloy member which uses a high silicon based aluminum alloy as a base material and has excellent sliding characteristics, and to provide its production method.
The surface of an aluminum alloy base material 1 containing, by mass, 10 to 30% Si is formed with an anodized layer 2 with a thickness of 0.5 to 3.0 μm by anodizing treatment. After that, zincate treatment is performed to form a zinc layer 3 so as to bury the recessed parts 2a in the anodized layer 2. Further, an Ni-B electroless plated layer 4 with a thickness of ≥2.0 μm is formed. In the formation of the anodized layer 2, an sulfuric acid bath with a sulfuric acid concentration of 200 to 280 g/l is used.
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Inventors:
TAJIMA HIROSHI
MURATA YUZO
TANAKA SEIZO
MURATA YUZO
TANAKA SEIZO
Application Number:
JP2000342483A
Publication Date:
May 22, 2002
Filing Date:
November 09, 2000
Export Citation:
Assignee:
TAJIMA SEISAKUSHO KK
FUJISAKI KINZOKU KK
SOHO KIKAKU KK
FUJISAKI KINZOKU KK
SOHO KIKAKU KK
International Classes:
C25D11/00; C22C21/00; C22C21/02; C23C18/32; C23C28/00; C25D11/08; (IPC1-7): C23C28/00; C22C21/00; C22C21/02; C23C18/32; C25D11/00; C25D11/08
Attorney, Agent or Firm:
Masanori Fujimaki
Previous Patent: JP2002146558
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