Title:
SURFACE TREATMENT METHOD FOR ALUMINUM AND ALUMINUM ALLOY
Document Type and Number:
Japanese Patent JP2006336054
Kind Code:
A
Abstract:
To provide a surface treatment method for aluminum and an aluminum alloy where die marks can be removed with a reduced chemical consumption, and conditional control is facilitated.
In the surface treatment method for aluminum or an aluminum alloy, in an aqueous solution of an alkali metal salt having a concentration of ≥0.01 mol/L, energizing is performed using an aluminum or aluminum material as an anode in such a manner that voltage is controlled to ≥10 V and electric quantity is controlled to 1.5 to 9.0 A×hr/dm2, and etching is performed.
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Inventors:
TANABE YOICHI
Application Number:
JP2005159944A
Publication Date:
December 14, 2006
Filing Date:
May 31, 2005
Export Citation:
Assignee:
SANKYO TATEYAMA ALUMINIUM INC
International Classes:
C25D11/06; C25D11/04; C25D11/24
Domestic Patent References:
| JPH03207889A | 1991-09-11 | |||
| JPH0368101A | 1991-03-25 | |||
| JP2003183899A | 2003-07-03 |