JPS5514876A - Woodgrain pattern forming method of aluminum or aluminum alloy material - Google Patents
Woodgrain pattern forming method of aluminum or aluminum alloy materialInfo
- Publication number
- JPS5514876A JPS5514876A JP8793478A JP8793478A JPS5514876A JP S5514876 A JPS5514876 A JP S5514876A JP 8793478 A JP8793478 A JP 8793478A JP 8793478 A JP8793478 A JP 8793478A JP S5514876 A JPS5514876 A JP S5514876A
- Authority
- JP
- Japan
- Prior art keywords
- polarity inverting
- woodgrain
- electrolytic bath
- waveforms
- anode
- 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 form extremely clear and beautiful woodgrain pattern on Al material, by treating Al material by polarity inverting waveforms of pulses to form a barrier film, and electrolyzing by using polarity inverting waveforms at a voltage less than the peak voltage of the previous treatment, then further applying cathode electrolysis and anode electrolysis.
CONSTITUTION: Al or Al alloy material is degreased in an ordinary method, and is electrolyzed in a specified barrier type film forming electrolyte by using polarity inverting waveforms of pulses or alternating currents, and a barrier film possessing woodgrain lines is formed on the surface. Thus foregoing processed Al material is put in an electrolytic bath containing mainly sulfuric acid, and a colored oxide film is produced in the woodgrain part by using DC or pulse current or DC polarity inverting waveforms at a voltage less than the peak voltage of the current used in the previous process. Next, in the same electrolytic bath, the barrier film formed in the first process is exfoliated by cathode electrolysis to expose the ground surface of Al material, and by anode oxidation in the same electrolytic bath, anode oxide film is formed on the ground surface of the Al material.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8793478A JPS601957B2 (en) | 1978-07-19 | 1978-07-19 | Method of forming wood grain pattern on aluminum or aluminum alloy material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8793478A JPS601957B2 (en) | 1978-07-19 | 1978-07-19 | Method of forming wood grain pattern on aluminum or aluminum alloy material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5514876A true JPS5514876A (en) | 1980-02-01 |
JPS601957B2 JPS601957B2 (en) | 1985-01-18 |
Family
ID=13928727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8793478A Expired JPS601957B2 (en) | 1978-07-19 | 1978-07-19 | Method of forming wood grain pattern on aluminum or aluminum alloy material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS601957B2 (en) |
-
1978
- 1978-07-19 JP JP8793478A patent/JPS601957B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS601957B2 (en) | 1985-01-18 |
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