JPS5754298A - Forming method for colored film of aluminum material - Google Patents
Forming method for colored film of aluminum materialInfo
- Publication number
- JPS5754298A JPS5754298A JP12823780A JP12823780A JPS5754298A JP S5754298 A JPS5754298 A JP S5754298A JP 12823780 A JP12823780 A JP 12823780A JP 12823780 A JP12823780 A JP 12823780A JP S5754298 A JPS5754298 A JP S5754298A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum material
- coloring
- constant value
- voltage
- subjected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
PURPOSE: To carry out uniform coloring without color irregularity by a method wherein an aluminum material is subjected to anodic oxidation treatment, and, thereafter, electrolytic coloring treatment is at first carried out when a cathode potential comes to a constant value, electrolytic voltage is changed to hold said constant value.
CONSTITUTION: An aluminum material is subjected to anodic oxidation treatment in an electrolyte such as a sulfuric acid solution to form a primary film. Subsequently, in an electrolyte such as a nickel solution, the treated aluminum material is subjected to secondary electrolysis to carry out the coloring thereof. In carrying out the secondary electrolysis, at first, said electrolysis is carried out at constant voltage of A.C. or D.C. and, within 1min after starting, when cathode potential comes to show a constant value, electrolytic voltage is changed next so as to keep said constant value. Thereby, a coloring extent can be freely controlled by length of a constant potential keeping time. Further, either in A.C. or D.C., first voltage is pref. about 10W18V and current density is pref. about 0.2W1.0A/dm2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12823780A JPS5815560B2 (en) | 1980-09-16 | 1980-09-16 | Colored film formation method for aluminum materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12823780A JPS5815560B2 (en) | 1980-09-16 | 1980-09-16 | Colored film formation method for aluminum materials |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5754298A true JPS5754298A (en) | 1982-03-31 |
JPS5815560B2 JPS5815560B2 (en) | 1983-03-26 |
Family
ID=14979876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12823780A Expired JPS5815560B2 (en) | 1980-09-16 | 1980-09-16 | Colored film formation method for aluminum materials |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5815560B2 (en) |
-
1980
- 1980-09-16 JP JP12823780A patent/JPS5815560B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5815560B2 (en) | 1983-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56136996A (en) | Production of colored aluminum material | |
DE3278119D1 (en) | Process of electroforming screen material, material as obtained and apparatus for executing said process | |
JPS5760099A (en) | Method for forming colored stripe on aluminum surface | |
JPS5754298A (en) | Forming method for colored film of aluminum material | |
JPS5644795A (en) | Anodic oxidation of aluminum | |
JPS566000A (en) | Electrolytic coloring method of aluminum | |
JPS55125299A (en) | Electrochemical sand setting method for aluminum sheet | |
JPS5754297A (en) | Formation of colored film to aluminum material | |
JPS5675595A (en) | Anodic oxidized film coloring method of aluminum or aluminum alloy | |
JPS5798698A (en) | Coloring method for aluminum or aluminum alloy | |
JPS5565388A (en) | Electric manganese plating method of steel strip | |
JPS5620194A (en) | Electrolytic coloring method for aluminum | |
JPS55119194A (en) | Method for coloration of aluminum | |
JPS5677393A (en) | Coloring method for anodic oxidation film of aluminum or its alloy | |
JPS56156795A (en) | Electrolytic pigmentation for aluminum | |
JPS5662989A (en) | Method for electrodeposition of lead dioxide onto anode plate surface incorporated in electrolytic bath | |
JPS579895A (en) | Method of forming selective absorption membrane for solar heat energy on surface of aluminum material | |
JPS5675594A (en) | Anodic oxidized film coloring method of aluminum or aluminum alloy | |
JPS5677392A (en) | Coloring method for anodic oxidation film of aluminum or its alloy | |
JPS5569293A (en) | Coloring method of aluminum anodic oxidation film | |
JPS563695A (en) | Treatment of electrolytic coloring of aluminum | |
JPS5554594A (en) | Anodic oxidation treating method of magnesium and magnesium alloy | |
JPS55131195A (en) | Electrolytic coloring method for aluminum | |
JPS5613498A (en) | Electrolytic coloring method for aluminum or aluminum alloy | |
JPS5521503A (en) | Coloring of aluminium |