ANODIC OXIDE FILM OF ALUMINUM STOCK AND METHOD FOR PRODUCING THE SAME

Title:

ANODIC OXIDE FILM OF ALUMINUM STOCK AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

Japanese Patent JP2014025126

Kind Code:

A

Abstract:

To provide the one having film pores with a pore diameter of 100 to 300 nm in the anodic oxide film on the surface of an aluminum stock.

In the method for producing an anodic oxide film, an anode 14 and a cathode 15 are immersed into an electrolyte 11 to produce an anodic oxide film on the surface of a workpiece. The production method is characterized in that, using the workpiece of an aluminum stock for the anode 14 and using a mixed solution of phosphoric acid concentration of 0.1 to 3.0 mol/L and a citric acid concentration of 0.1 to 1.5 mol/L at an electrolyte temperature of 10 to 65°C, the workpiece 14 is subjected to anode oxidation treatment under the electrolytic condition satisfying a current density of 5 to 35 A/dm² to produce an anode oxide film in which the pore size of film pores is 100 to 300 nm.

Inventors:

FUJITA MASAHIRO
UMEMOTO YOHEI
TANAKA HIROOMI
NAGASHIMA HIROAKI
FUKAMI YUNOSUKE
NOMURA MASAYA

Application Number:

JP2012167862A

Publication Date:

February 06, 2014

Filing Date:

July 30, 2012

Export Citation:

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Assignee:

SUZUKI MOTOR CORP

International Classes:

C25D11/04; C25D11/06

Domestic Patent References:

JP2003013799A	2003-01-15
JP2005179730A	2005-07-07
JP2004035930A	2004-02-05
JP2008038237A	2008-02-21

Attorney, Agent or Firm:

Patent business corporation Tokyo International Patent Office

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