AT113272B - Process for the manufacture of electrodes for dry copper oxide rectifiers. - Google Patents
Process for the manufacture of electrodes for dry copper oxide rectifiers.Info
- Publication number
- AT113272B AT113272B AT113272DA AT113272B AT 113272 B AT113272 B AT 113272B AT 113272D A AT113272D A AT 113272DA AT 113272 B AT113272 B AT 113272B
- Authority
- AT
- Austria
- Prior art keywords
- copper oxide
- electrodes
- manufacture
- dry copper
- carbon
- Prior art date
Links
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 title claims description 7
- 239000005751 Copper oxide Substances 0.000 title claims description 7
- 229910000431 copper oxide Inorganic materials 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 2
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 claims description 2
- 238000005087 graphitization Methods 0.000 claims description 2
Landscapes
- Ceramic Products (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Elektroden für trockene Kupferoxydgleichrichter.
Bei der Herstellung der Elektroden für trockene Kupferoxydgleichrichter pflegt man die im wesentlichen aus rotem Kupferoxyd (Kupferoxydul) bestehende wirksame Schicht mit fein verteilter Kohle zu behandeln. Man will dadurch einerseits den Kontakt mit der darauf zu legenden Gegenelektrode verbessern und anderseits die Reduktion des Kupferoxyduls erschweren.
Es hat sich gezeigt, dass derartig behandelte Elektroden in vielen Fällen einen unerwünscht grossen Rückstrom (d. h. Stromstärke in der dem gleichgerichteten Strom entgegengesetzten Richtung) aufweisen. Darunter leidet aber der Wirkungsgrad der Gleichrichter. Der erwähnte Übelstand lässt sich nun dadurch beseitigen, dass man bei der Behandlung der Elektrode mit Kohle (Graphitierung) den Elektrodenrand von der Berührung mit der fein verteilten Kohle ausschliesst. Auf diese Weise wird dem Rückstrom der Kriechweg über den Elektrodenrand versperrt und so die Stärke des Rückstromes ganz erheblich vermindert. Je vollständiger dies gelingt, um so brauchbarer ist die Elektrode zur Verwendung als Gleichrichter und um-so höher der Wirkungsgrad der Gleichrichtung.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the manufacture of electrodes for dry copper oxide rectifiers.
In the manufacture of electrodes for dry copper oxide rectifiers, the effective layer, consisting essentially of red copper oxide (copper oxide), is usually treated with finely divided carbon. The aim is on the one hand to improve the contact with the counter electrode to be placed on it and on the other hand to make the reduction of the copper oxide more difficult.
It has been found that electrodes treated in this way in many cases have an undesirably large reverse current (i.e. current intensity in the direction opposite to the rectified current). The efficiency of the rectifier suffers as a result. The disadvantage mentioned can now be eliminated by excluding the electrode edge from contact with the finely divided carbon when the electrode is treated with carbon (graphitization). In this way the leakage path of the return current is blocked over the edge of the electrode and the strength of the return current is reduced considerably. The more fully this is achieved, the more useful the electrode is for use as a rectifier and the higher the efficiency of the rectification.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE113272X | 1927-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT113272B true AT113272B (en) | 1929-05-25 |
Family
ID=5653284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT113272D AT113272B (en) | 1927-05-21 | 1928-04-20 | Process for the manufacture of electrodes for dry copper oxide rectifiers. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT113272B (en) |
-
1928
- 1928-04-20 AT AT113272D patent/AT113272B/en active
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