JPS57110696A - Electrodeposition painting method of aluminum or aluminum alloy - Google Patents
Electrodeposition painting method of aluminum or aluminum alloyInfo
- Publication number
- JPS57110696A JPS57110696A JP18499280A JP18499280A JPS57110696A JP S57110696 A JPS57110696 A JP S57110696A JP 18499280 A JP18499280 A JP 18499280A JP 18499280 A JP18499280 A JP 18499280A JP S57110696 A JPS57110696 A JP S57110696A
- Authority
- JP
- Japan
- Prior art keywords
- anode
- treatment
- electrodeposition painting
- preelectrolysis
- anodized
- 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 improve the uniformity of paint film thichness further by subjecting an anodized Al-based metal beforehand to temporary sealing then to an anode preelectrolysis treatment for growing a barrier type film in constant current electrodeposition painting of said metal.
CONSTITUTION: A surface conditioned Al or Al alloy is anodized and after the anodized film is rinsed, it is temporally sealed. For example, in a light treatment to the extent of warm washing with demineralizes water, the SO4 2-, etc. in the fine pores of the porous layer are washed off, and part of the fine pore surface layer is hydrated. Thereby, the reaction other than growth of a barrier layer in the next anode preelectrolysis treatment is prevented. Next, pieces 1W3 to be treated are arranged in parallel with an anode preelectrolysis bath 5, and with these as anode, electricity is conducted. The bath 5 is triethylamine or the like of pH of the extent of not breaking down the barrier film. The respective electrodeposition painting materials applied with this treatment are disposed in the same way as that in the above-described pretreatment, and are subjected to electrodeposition painting with constant DC current.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18499280A JPS607040B2 (en) | 1980-12-27 | 1980-12-27 | Electrodeposition coating method for aluminum or aluminum alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18499280A JPS607040B2 (en) | 1980-12-27 | 1980-12-27 | Electrodeposition coating method for aluminum or aluminum alloys |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57110696A true JPS57110696A (en) | 1982-07-09 |
JPS607040B2 JPS607040B2 (en) | 1985-02-21 |
Family
ID=16162890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18499280A Expired JPS607040B2 (en) | 1980-12-27 | 1980-12-27 | Electrodeposition coating method for aluminum or aluminum alloys |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS607040B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110798A (en) * | 1982-12-15 | 1984-06-26 | Hida Seisakusho:Kk | Method for partial electrodeposition painting of aluminum or aluminum alloy |
JPH06192888A (en) * | 1991-02-15 | 1994-07-12 | Takada Kenkyusho:Kk | High-corrosion-resistance surface treatment of aluminum alloy |
-
1980
- 1980-12-27 JP JP18499280A patent/JPS607040B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110798A (en) * | 1982-12-15 | 1984-06-26 | Hida Seisakusho:Kk | Method for partial electrodeposition painting of aluminum or aluminum alloy |
JPH06192888A (en) * | 1991-02-15 | 1994-07-12 | Takada Kenkyusho:Kk | High-corrosion-resistance surface treatment of aluminum alloy |
Also Published As
Publication number | Publication date |
---|---|
JPS607040B2 (en) | 1985-02-21 |
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