JPS5511184A - Surface treating method of copper or copper alloy or plated product by these metals - Google Patents
Surface treating method of copper or copper alloy or plated product by these metalsInfo
- Publication number
- JPS5511184A JPS5511184A JP8478378A JP8478378A JPS5511184A JP S5511184 A JPS5511184 A JP S5511184A JP 8478378 A JP8478378 A JP 8478378A JP 8478378 A JP8478378 A JP 8478378A JP S5511184 A JPS5511184 A JP S5511184A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- plated products
- metals
- anode
- produced
- 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 color chemical conversion coating films of superior adhesion and corrosion resistance through PR electrolysis treatment of plated products of copper and copper alloys.
CONSTITUTION: Copper, copper alloys or plated products of these metals are subjected to PR electrolysis in an aqueous solution by alternately supplying direct current and inverse current. Then, copper melts first at the anode and active surfaces are exposed. At the same time, oxygen of nascent state is produced. When polarity changes to the cathode, the copper does not change and hydrogen is produced. Namely, oxidation progresses in the state of being normally activated by the anode and the colored film such as of metal suboxides, etc. such as of cuprous oxide, etc. is formed on the surface of the plated products. The color tone of this film changes to brown-blue-gold-red-dark blue along with progress of oxidation. This method facilitates control of color tones and evens the quality.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53084783A JPS5927398B2 (en) | 1978-07-11 | 1978-07-11 | Surface treatment method of copper or copper alloy or plated products with these metals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53084783A JPS5927398B2 (en) | 1978-07-11 | 1978-07-11 | Surface treatment method of copper or copper alloy or plated products with these metals |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5511184A true JPS5511184A (en) | 1980-01-25 |
JPS5927398B2 JPS5927398B2 (en) | 1984-07-05 |
Family
ID=13840286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53084783A Expired JPS5927398B2 (en) | 1978-07-11 | 1978-07-11 | Surface treatment method of copper or copper alloy or plated products with these metals |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5927398B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173988A (en) * | 1981-04-20 | 1982-10-26 | Matsushita Electric Ind Co Ltd | Magnetic sensor |
JPS61131429U (en) * | 1985-02-01 | 1986-08-16 | ||
JPH06264518A (en) * | 1993-03-16 | 1994-09-20 | Ozawa Concrete Kogyo Kk | Connection structure of plate material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49123448A (en) * | 1973-04-03 | 1974-11-26 | ||
JPS51144346A (en) * | 1975-06-09 | 1976-12-11 | Uemura Kogyo Kk | Process for coloring copper and its alloy |
JPS5248587A (en) * | 1975-09-06 | 1977-04-18 | Imris Pavel | Ozone generator |
-
1978
- 1978-07-11 JP JP53084783A patent/JPS5927398B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49123448A (en) * | 1973-04-03 | 1974-11-26 | ||
JPS51144346A (en) * | 1975-06-09 | 1976-12-11 | Uemura Kogyo Kk | Process for coloring copper and its alloy |
JPS5248587A (en) * | 1975-09-06 | 1977-04-18 | Imris Pavel | Ozone generator |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173988A (en) * | 1981-04-20 | 1982-10-26 | Matsushita Electric Ind Co Ltd | Magnetic sensor |
JPS61131429U (en) * | 1985-02-01 | 1986-08-16 | ||
JPH06264518A (en) * | 1993-03-16 | 1994-09-20 | Ozawa Concrete Kogyo Kk | Connection structure of plate material |
Also Published As
Publication number | Publication date |
---|---|
JPS5927398B2 (en) | 1984-07-05 |
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