GB1097769A - Improvements in or relating to etchings of aluminium foil - Google Patents
Improvements in or relating to etchings of aluminium foilInfo
- Publication number
- GB1097769A GB1097769A GB476065A GB476065A GB1097769A GB 1097769 A GB1097769 A GB 1097769A GB 476065 A GB476065 A GB 476065A GB 476065 A GB476065 A GB 476065A GB 1097769 A GB1097769 A GB 1097769A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foil
- passes
- passing
- ionized water
- roll
- 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
- 239000005030 aluminium foil Substances 0.000 title abstract 2
- 238000005530 etching Methods 0.000 title abstract 2
- 239000011888 foil Substances 0.000 abstract 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000008367 deionised water Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000012487 rinsing solution Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/055—Etched foil electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/04—Etching of light metals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
<PICT:1097769/C6-C7/1> High purity aluminium foil is etched for the production of electrolytic condensers by passing the foil through an etching solution at a rate up to 250 feet per hour and applying a current in the range 0.39 to 9.36 amps/sq. inch. The solution, e.g. 10% NaCl in de-ionized water is at an elevated temperature such as 90 DEG C. - 100 DEG C. Foil from roll 11 passes through cleaning tanks 12 and 13 containing respectively a chlorinated hydrocarbon solvent and de-ionized water. The foil passes over a power roll 18 which is connected to one pole of a source of electric current and then into the electrolyte in which it passes in succession between pairs of cathode plate 22, the potential drop between the foil and the successive adjacent cathode plates reducing due to resistance of the foil. Tanks 30-38 contain rinsing solutions and after passing through drier 40 the foil is wound on reel 42.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34229864A | 1964-02-03 | 1964-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1097769A true GB1097769A (en) | 1968-01-03 |
Family
ID=23341218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB476065A Expired GB1097769A (en) | 1964-02-03 | 1965-02-03 | Improvements in or relating to etchings of aluminium foil |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1097769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140326595A1 (en) * | 2013-05-02 | 2014-11-06 | Chung Shan Institute of Science and Technology, Armaments Bureau, Ministry of National Defense | Roll-to-roll electrochemical polish apparatus |
-
1965
- 1965-02-03 GB GB476065A patent/GB1097769A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140326595A1 (en) * | 2013-05-02 | 2014-11-06 | Chung Shan Institute of Science and Technology, Armaments Bureau, Ministry of National Defense | Roll-to-roll electrochemical polish apparatus |
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