DE974207C - Process for the formation of traveling baths of electrode foils for electrolytic capacitors, preferably made of aluminum - Google Patents
Process for the formation of traveling baths of electrode foils for electrolytic capacitors, preferably made of aluminumInfo
- Publication number
- DE974207C DE974207C DES16094D DES0016094D DE974207C DE 974207 C DE974207 C DE 974207C DE S16094 D DES16094 D DE S16094D DE S0016094 D DES0016094 D DE S0016094D DE 974207 C DE974207 C DE 974207C
- Authority
- DE
- Germany
- Prior art keywords
- formation
- aluminum
- electrolytic capacitors
- preferably made
- traveling
- 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
- 230000015572 biosynthetic process Effects 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 7
- 239000003990 capacitor Substances 0.000 title claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 5
- 229910052782 aluminium Inorganic materials 0.000 title claims description 5
- 239000011888 foil Substances 0.000 title claims description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 8
- 239000004327 boric acid Substances 0.000 claims description 7
- 229910021538 borax Inorganic materials 0.000 claims description 6
- 239000004328 sodium tetraborate Substances 0.000 claims description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 3
- 239000012047 saturated solution Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 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
- H01G9/0029—Processes of manufacture
- H01G9/0032—Processes of manufacture formation of the dielectric layer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
Verfahren zur Wanderbad-Formierung von vorzugsweise aus Aluminium bestehenden Elektrodenfolien für elektrolytische Kondensatoren Aluminiumfolien für elektrolytische Kondensatoren werden bekanntlich in verschiedenen Bädern im sogenannten Wanderbadverfahren vorformiert, wobei das Bad, in welchem hauptsächlich die Bildung der dielektrischen Schicht erfolgt, aus einer Lösung von Borsäure und Borax in destilliertem Wasser besteht. Während es bekannt ist, als Betriebselektrolyt auch gesättigte oder sogar übersättigte Borsäurelösung zu verwenden, werden für die Vorformierung im Wanderbadverfahren im allgemeinen Lösungen von etwa 18 bis 2o °/o Borsäure und o, i °/o Borax verwendet. Das Bad arbeitet bei Siedetemperatur, so daß, abgesehen von den Borsäureverlusten durch den eigentlichen Formiervorgang, ein großer Verbrauch an destilliertem Wasser sowie auch ein Verlust an den gelösten Substanzen durch mitgerissene und herausgespritzte Anteile entsteht. Um die Formierungsbedingungen stets konstant zu halten, ist es notwendig, das Bad durch Analysen genau zu überwachen. Es stellte sich heraus, daß eine Überwachung des Bades mit direkt anzeigenden Instrumenten etwa auf der Basis von Leitfähigkeits- und pH-Messungen technisch nicht ohne weiteres durchführbar ist. Daher mußten stets zeitraubende und teure chemische Analysen durchgeführt werden.Method for forming a traveling bath, preferably made of aluminum existing electrode foils for electrolytic capacitors aluminum foils for electrolytic capacitors are known in various baths in the so-called Wandering bath process preformed, the bath in which mainly the formation The dielectric layer is made from a solution of boric acid and borax in distilled Water exists. While it is known as operating electrolyte, it is also saturated or Even using supersaturated boric acid solution will be necessary for preforming in the Traveling bath processes in general solutions of about 18 to 20% boric acid and o, i ° / o borax used. The bath operates at the boiling point, so that apart from the boric acid losses due to the actual forming process, a large consumption of distilled water as well as a loss of the dissolved substances entrained and splashed out parts arise. To the formation conditions To keep it constant at all times, it is necessary to carefully monitor the bath by means of analyzes. It turned out that a monitoring of the bath with direct reading Instruments On the basis of conductivity and pH measurements, for example, this is technically not straightforward is feasible. Therefore, time-consuming and expensive chemical analyzes always had to be carried out will.
Es wird daher ein Verfahren zur Wanderbadformierung von vorzugsweise aus Aluminium bestehenden Elektrodenfolien für elektrolytische Kondensatoren, bei dem die Formierungsbedingungen während des Betriebes möglichst konstant gehalten werden, vorgeschlagen, bei dem das Formierungsbad bei Siedetemperatur betrieben wird und bei dieser Temperatur als eine gesättigte Lösung von Borsäure mit Bodenkörper aus Borsäure, gegebenenfalls mit geringem Zusatz von Borax, etwa o,1 °/o, benutzt wird. Es ist dann nur noch notwendig, durch Analysen lediglich den Boraxgehalt zu kontrollieren. Da der Boraxgehalt sich relativ wenig ändert, auch nicht von weittragendem Einfluß ist, wird die analytische Arbeit durch die vorgeschlagene Erfindung bedeutend herabgesetzt.It is therefore preferred to use a method for wandering pool formation made of aluminum electrode foils for electrolytic capacitors which kept the formation conditions as constant as possible during operation are proposed, in which the formation bath is operated at boiling temperature becomes and at this temperature as a saturated solution of boric acid with sediment from boric acid, optionally with a small addition of borax, about 0.1%, used will. It is then only necessary to only determine the borax content through analyzes check. Since the borax content changes relatively little, not even by far Is influence, the analytical work becomes significant by the proposed invention degraded.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES16094D DE974207C (en) | 1942-06-27 | 1942-06-27 | Process for the formation of traveling baths of electrode foils for electrolytic capacitors, preferably made of aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES16094D DE974207C (en) | 1942-06-27 | 1942-06-27 | Process for the formation of traveling baths of electrode foils for electrolytic capacitors, preferably made of aluminum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE974207C true DE974207C (en) | 1960-10-20 |
Family
ID=7475018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES16094D Expired DE974207C (en) | 1942-06-27 | 1942-06-27 | Process for the formation of traveling baths of electrode foils for electrolytic capacitors, preferably made of aluminum |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE974207C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1014721B (en) * | 1953-12-05 | 1957-08-29 | Algot Viebke | Locking device for elevator shaft doors |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1270784A (en) * | 1914-10-02 | 1918-07-02 | Westinghouse Electric & Mfg Co | Electrolyte for electrolytic cells, such as lightning-arresters, condensers, and the like. |
| US1710073A (en) * | 1927-03-21 | 1929-04-23 | Ruben Samuel | Electrical condenser |
| US1976700A (en) * | 1931-10-31 | 1934-10-09 | Ergon Res Lab Inc | Electrolyte for use with filmed electrodes |
| US2174841A (en) * | 1936-05-08 | 1939-10-03 | Sprague Specialties Co | Electrolytic device |
| US2193711A (en) * | 1937-12-14 | 1940-03-12 | Sprague Specialties Co | Electrolytic device |
-
1942
- 1942-06-27 DE DES16094D patent/DE974207C/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1270784A (en) * | 1914-10-02 | 1918-07-02 | Westinghouse Electric & Mfg Co | Electrolyte for electrolytic cells, such as lightning-arresters, condensers, and the like. |
| US1710073A (en) * | 1927-03-21 | 1929-04-23 | Ruben Samuel | Electrical condenser |
| US1976700A (en) * | 1931-10-31 | 1934-10-09 | Ergon Res Lab Inc | Electrolyte for use with filmed electrodes |
| US2174841A (en) * | 1936-05-08 | 1939-10-03 | Sprague Specialties Co | Electrolytic device |
| US2193711A (en) * | 1937-12-14 | 1940-03-12 | Sprague Specialties Co | Electrolytic device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1014721B (en) * | 1953-12-05 | 1957-08-29 | Algot Viebke | Locking device for elevator shaft doors |
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