AT90359B - Graphite arc light electrode and process for its manufacture. - Google Patents
Graphite arc light electrode and process for its manufacture.Info
- Publication number
- AT90359B AT90359B AT90359DA AT90359B AT 90359 B AT90359 B AT 90359B AT 90359D A AT90359D A AT 90359DA AT 90359 B AT90359 B AT 90359B
- Authority
- AT
- Austria
- Prior art keywords
- graphite
- manufacture
- arc light
- light electrode
- graphite arc
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 10
- 229910002804 graphite Inorganic materials 0.000 title claims description 10
- 239000010439 graphite Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011233 carbonaceous binding agent Substances 0.000 claims 1
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
- Carbon And Carbon Compounds (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
Bekannt sind Elektroden. insbesondere negative für Scheinwerfer, die teilweise und auch ganz aus Graphit bestehen. Die letzteren werden aus unreinem Kohlenmaterial hergestellt, das im elektrischen Ofen vollkommen in Graphit übergeführt wird. Obwohl diese Art Elektroden gegenüber den mit Graphitzusatz eine Verbesserung bedeuten, zeigen sie doch im hochbelasteten Scheinwerfer auch den Nachteil. dass der Graphit auf grössere Länge abzundert und eine unnatiirliche Spitze bildet. Eingehende Unter- suchungen haben den Beweis erbracht, dass diese Erscheinung mit der Struktur der Elektrode zusammen- hängt. Die aus unreinem Kohlenmaterial hergestellten und nachträglich graphitierten Elektroden zeigen
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tung auszuüben.
Nach der vorliegenden Erfindung wird kristallinischer Flockengraphit so gepresst. dass seine Schuppen in der Längsrichtung des Stiftes liegen. Dies ist sowohl durch eine Einzelpressung, als auch in der Strangpresse möglich und muss die einzeln gepresste Elektrode nachher il d den bestimmten Durehmesser abge-
EMI1.3
dieses Rohres liegen auf Kosten der auf diese senkrechten Dimensionen vergrössert werden. Die so vo rbereitete Graphitmasse wird sodann in die Strangpresse so eingelegt dass die verlängerte Dimension in die Richtung des aus der Strangpresse austretenden Stranges fällt.
Gegenüber den bekannten Elektroden, die im ganzen im elektrischen Ofen in Graphit übergeführt
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keinerlei Widerstand entgegensetzt: auch Einfluss auf den spezifischen Widerstand, der bei läng. sgeschich- teten Flockengraphitelektroden unter 4 liegt. ist fesiztstellen.
PATENT-. SPRÜCHE-
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
EMI1.1
Electrodes are known. especially negative for headlights that are partly or entirely made of graphite. The latter are made from impure carbon material that is completely converted into graphite in an electric furnace. Although this type of electrodes is an improvement over those with added graphite, they also have the disadvantage in highly stressed headlights. that the graphite scales over a greater length and forms an unnatural point. In-depth studies have shown that this phenomenon is related to the structure of the electrode. The electrodes made from impure carbon material and subsequently graphitized show
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exercise.
According to the present invention, crystalline flake graphite is so pressed. that its scales lie in the longitudinal direction of the pen. This is possible both by means of a single pressing and in an extrusion press and the individually pressed electrode must then be measured by the specified diameter.
EMI1.3
of this pipe are at the expense of being enlarged to these perpendicular dimensions. The graphite mass prepared in this way is then placed in the extruder in such a way that the extended dimension falls in the direction of the strand emerging from the extruder.
Compared to the known electrodes, which are converted into graphite in the electric furnace
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does not offer any resistance: also has an influence on the specific resistance, which at long. layered flake graphite electrodes is below 4. is fixed.
PATENT-. CLAIMS-
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** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE27922X | 1918-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT90359B true AT90359B (en) | 1922-12-11 |
Family
ID=5621368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT90359D AT90359B (en) | 1918-09-24 | 1919-06-13 | Graphite arc light electrode and process for its manufacture. |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT90359B (en) |
| CH (1) | CH87470A (en) |
| DK (1) | DK27922C (en) |
-
1919
- 1919-03-13 DK DK27922D patent/DK27922C/en active
- 1919-06-13 AT AT90359D patent/AT90359B/en active
- 1919-07-09 CH CH87470D patent/CH87470A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH87470A (en) | 1920-12-01 |
| DK27922C (en) | 1921-07-04 |
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