GB440221A - Improvements in and relating to the production of electrodes for electrolytic condensers and like apparatus - Google Patents
Improvements in and relating to the production of electrodes for electrolytic condensers and like apparatusInfo
- Publication number
- GB440221A GB440221A GB32523/34A GB3252334A GB440221A GB 440221 A GB440221 A GB 440221A GB 32523/34 A GB32523/34 A GB 32523/34A GB 3252334 A GB3252334 A GB 3252334A GB 440221 A GB440221 A GB 440221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- etching
- relating
- electrodes
- production
- indiana
- 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
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 238000005530 etching Methods 0.000 abstract 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 238000005406 washing Methods 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Weting (AREA)
Abstract
440,221. Electrolytic condensers. MAGNAVOX CO., 2131, Bueter Road, Fort Wayne, Indiana, U.S.A.-(Assignees of Barrett, J. J. ; 914, Kensington Boulevard, Fort Wayne, Indiana, U.S.A.) Nov. 12, 1934, No. 32523. Convention date, Nov. 11, 1933. [Class 37] An electrode for an electrolytic condenser is prepared by etching the surface in an aqueous solution of copper chloride. Preferably the process comprises cleaning the electrode in sodium hydroxide etching in copper chloride solution immersing in nitric acid to stop the etching and then washing. Reference has been directed by the Comptroller to Specification 433,818.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US440221XA | 1933-11-11 | 1933-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB440221A true GB440221A (en) | 1935-12-23 |
Family
ID=21930118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32523/34A Expired GB440221A (en) | 1933-11-11 | 1934-11-12 | Improvements in and relating to the production of electrodes for electrolytic condensers and like apparatus |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR781144A (en) |
| GB (1) | GB440221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1033781B (en) * | 1954-07-28 | 1958-07-10 | Aluminium Walzwerke Singen | Process for the production of chemically or electrochemically strongly roughened aluminum surfaces for electrolytic capacitors |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976532C (en) * | 1935-12-09 | 1963-10-24 | Radio Patents Company | Method and device for the artificial surface enlargement of the electrodes for electrolytic capacitors |
| DE756216C (en) * | 1936-12-19 | 1952-10-13 | Siemens & Halske A G | Electrolytic process for roughening the surface of an electrode, especially for electrolytic capacitors |
| US4101112A (en) * | 1976-11-24 | 1978-07-18 | Conners John A | Pipe line coupling system |
-
1934
- 1934-11-10 FR FR781144D patent/FR781144A/en not_active Expired
- 1934-11-12 GB GB32523/34A patent/GB440221A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1033781B (en) * | 1954-07-28 | 1958-07-10 | Aluminium Walzwerke Singen | Process for the production of chemically or electrochemically strongly roughened aluminum surfaces for electrolytic capacitors |
Also Published As
| Publication number | Publication date |
|---|---|
| FR781144A (en) | 1935-05-09 |
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