GB893573A - Improvements in or relating to methods of electrolytically forming an oxide film on a tape of film-forming metal - Google Patents
Improvements in or relating to methods of electrolytically forming an oxide film on a tape of film-forming metalInfo
- Publication number
- GB893573A GB893573A GB15649/58A GB1564958A GB893573A GB 893573 A GB893573 A GB 893573A GB 15649/58 A GB15649/58 A GB 15649/58A GB 1564958 A GB1564958 A GB 1564958A GB 893573 A GB893573 A GB 893573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- strip
- tank
- aluminium
- electrode
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/005—Apparatus specially adapted for electrolytic conversion coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/024—Anodisation under pulsed or modulated current or potential
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Photovoltaic Devices (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
893,573. Anodizing metal strip. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 15, 1958 [May 18, 1957], No. 15649/58. Class 41. An apparatus for forming an oxide film on a metal strip 3, e.g. of aluminium, comprises a tank 1 containing a liquid electrolyte 2, a driving roller 4 ... 7 above the tank 1 and a driving roller 8 ... 10 near the bottom of the tank 1 for moving the strip continuously through the tank, a hollow electrode 11 ... 13 protruding above the liquid level in the tank 1 and disposed between the upper and lower rollers, flat plate electrodes 14, 15 below the electrode 11 ... 13, means, e.g. a pump 30 and conduits 31, 32, for withdrawing liquid from the tank and reintroducing it through the hollow electrode 11 ... 13 which has an insulating external layer 25 and has at its lower end a slot 22 for passage of the strip 3, and means for connecting the strip 3 as the anode and the electrodes 11 ... 15 as the cathode so that the voltage across the electrodes 11 ... 13 and the strip 3 is a fraction, e.g. one half of the voltage across the electrodes 14, 15 and the strip 3. The liquid circulated by the pump 30 may pass through a refrigerator and is delivered at such a rate as to inhibit the passage of an electric current between the electrodes 14, 15 and the electrodes 11 ... 13. The electrodes 14, 15 are of stainless steel and are connected to the tank 1, which is of aluminium and is connected to the negative of a supply source 16, the strip 13 being connected to the positive of two sources 16, 17, e.g. through a brush 23 engaging the roller 4, or by a brush engaging the roll 24 of untreated strip, the roller 4 being then, like the rollers 5 ... 10, of ceramic material. The voltage of the source 16 exceeds that of the source 17, to the negative of which the electrode 11 is connected, and a switch 19 which alters several times a second reverses the polarity of, or alters the negative potential of, the electrodes 12, 13 according to the setting of two switches 20, 21. The electrodes 11 ... 13 may be of a corrosion-resistant metal, e.g. stainless steel, nickel or a coppernickel alloy, and have a separate ceramic or vitreous layer 25, or they may have an oxide coating 25, e.g. where they are of aluminium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL893573X | 1957-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB893573A true GB893573A (en) | 1962-04-11 |
Family
ID=19856015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15649/58A Expired GB893573A (en) | 1957-05-18 | 1958-05-15 | Improvements in or relating to methods of electrolytically forming an oxide film on a tape of film-forming metal |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1103104B (en) |
| GB (1) | GB893573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447419A (en) * | 2019-09-04 | 2021-03-05 | 荥经县旭光电子有限公司 | Formation aluminium foil production drying device with automatic temperature control function |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2938340C2 (en) * | 1979-09-21 | 1982-12-09 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Process for the production of solid electrolytic capacitors |
| DE3911814A1 (en) * | 1989-04-11 | 1990-10-18 | Siemens Ag | Surface roughened aluminium foil mfr. - by raising through etching bath with initial electrodes compartment followed by electrolytic pulsed current compartment |
-
1958
- 1958-05-13 DE DEN15070A patent/DE1103104B/en active Pending
- 1958-05-15 GB GB15649/58A patent/GB893573A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447419A (en) * | 2019-09-04 | 2021-03-05 | 荥经县旭光电子有限公司 | Formation aluminium foil production drying device with automatic temperature control function |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1103104B (en) | 1961-03-23 |
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