DE628380C - Meatlldampfentladungsgefaess with a wick-like insert inserted into the cathode - Google Patents

Meatlldampfentladungsgefaess with a wick-like insert inserted into the cathode

Info

Publication number
DE628380C
DE628380C DES107545D DES0107545D DE628380C DE 628380 C DE628380 C DE 628380C DE S107545 D DES107545 D DE S107545D DE S0107545 D DES0107545 D DE S0107545D DE 628380 C DE628380 C DE 628380C
Authority
DE
Germany
Prior art keywords
metal
cathode
wick
protective sleeve
meatlldampfentladungsgefaess
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
Application number
DES107545D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES107545D priority Critical patent/DE628380C/en
Application granted granted Critical
Publication of DE628380C publication Critical patent/DE628380C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/04—Main electrodes; Auxiliary anodes
    • H01J13/06—Cathodes
    • H01J13/12—Positioning or moving the cathode spot on the surface of the pool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
    • H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
    • H01J2893/0075—Cathodic cups
    • H01J2893/008—Means for stabilising the cathodic spot

Landscapes

  • Spark Plugs (AREA)

Description

Metalld'ampfentladungsgefäl3 mit einem in die Kathode eingesetzten dochtartigen Einsatzkörper Die Erfindung betrifft ,ein Metalldampf -entladungsgefäß mit :einem in der Kathode befindlichen Einsatzkörper.Metal vapor discharge gradient with an inserted into the cathode wick-like insert body The invention relates to a metal vapor discharge vessel with: an insert body located in the cathode.

Metalldampfentladungsgefäße mit einem in die Kathode eingesetzten, das Kathodenm!etall nach Arteines Dochtes bis zu der an seinem oberen Ende 'befindlichen Ansatzstelle emporziehenden Einsatzkörper, der bis auf die Lichtbogenansatzstelle von einer Schutzhülse aus einem Metall. von großer Temperaturbeständigkeit, geringer Neigung zur Zerstäübung in der Entladungsbahn und geringer Löslichkeit in dem flüssigen Kathodemnetall umgeben ist, wurden bereits früher vorgeschlagen. Die bekannten Entladungsgefäße haben jedoch den Nachteil, da,ß sie namentlich bei Entladungsapparaten sehr großer Leistung nach längerem Betrieb schadhaft werden. Die Schutzhülsen erhalten zunächst feine Risse und Sprünge, die schließlich zum Abplatzen des Sdhutzkörpers führen, so daß der Einsatzkörper in dem Entladungsapparat ungeschützt ist.Metal vapor discharge vessels with an inserted into the cathode, the cathode metal in the manner of a wick up to that at its upper end Attachment point pulling up insert body, which is up to the arc attachment point from a protective sleeve made of a metal. of high temperature resistance, lower Tendency to atomize in the discharge path and poor solubility in the liquid Cathode metal surrounds have been proposed earlier. The well-known discharge vessels however, they have the disadvantage that they are very large, especially in the case of discharge apparatus Performance can become defective after prolonged use. Get the protective sleeves initially fine cracks and fissures, which eventually lead to flaking of the protective body, so that the insert body is unprotected in the discharge apparatus.

Dieser Nachteil: wird gemäß der vorliegenden Erfindung dadurch behoben, da.ß die Schutzhülse vollkommen glatt ausgeführt ist und abgerundete Kanten aufweist, so daß keinerlei Angriffsstellen für im Entladungsapparat auftretende zerstörende Ers'cheinungten vorhanden 'sind.This disadvantage: is eliminated according to the present invention by da.ß the protective sleeve is completely smooth and has rounded edges, so that no points of attack for destructive ones occurring in the discharge apparatus Appearances are present.

Die neuen Schutzhülsen bestehen aus einem Metallrohr. Als Werkstoff für dieses Metallroter dient ein Metall, das eine große Temperaturbeständigkeit, geringe Zersitäubung in der elektrischen Entladung und geringe Löslichkeit im flüssigen Metall aufweist. Als Metall dieser Beschaffenheit eignet sich besonders Wolfram. Es ist bei der Herstellung von metallenen Schutzrohren für Elektrodendochte darauf zu achten, daß diese Wolframrohre keinerlei starke Krümmungen und Kanten aufweisen, an denen ein kapillares Hochsaugen der Elektrodenflüssigkeit eintreten könnte.The new protective sleeves consist of a metal tube. As a material for this metal roter a metal is used that has a high temperature resistance, low atomization in electrical discharge and low solubility in liquid Has metal. Tungsten is particularly suitable as a metal of this nature. It is used in the manufacture of metal protective tubes for electrode wicks make sure that these tungsten tubes do not have any sharp curves or edges, at which capillary suction of the electrode liquid could occur.

Claims (1)

PATENTANSPRÜCHE: i. Metalldainpfentladungsgefäß mit einem in die Kathode eingesetzten, das Kathodemnetall nach: Art eines, Dochtes bis -zu der an seinem oberen Ende befindlichen Lichtbogenansatzstelle emporziehenden Einsatzkörper, der bis auf die Lichtbogenansatzstelle von einer Schutzhülse aus einem Metall von großer Temperaturbeständigkeit, geringer Neigung zur Zerstäubung in der .elektrischen Entladung und geringer Löslichkeit in dem flüssigen Kathodenmetall umgeben ist, dadurch gekennzeichnet, daß die Schutzhülse vollkommen glatt ausgeführt ist und abgerundete Kanten aufweist. z. @Metalldampfentladungsgefäß nach Anspruch i, dadurch gekennzeichnet, daß die Schutzhülse aus Wolfram besteht.PATENT CLAIMS: i. Metal vapor discharge vessel with one in the cathode used, the cathode metal according to: type of a wick up to the one on his Upper end of the arc attachment point uplifting insert body, the except for the arc attachment point of a protective sleeve made of a metal of large size Temperature resistance, low tendency to sputter in the electrical discharge and low solubility in the liquid cathode metal, characterized in that that the protective sleeve is completely smooth and has rounded edges. z. @ Metal vapor discharge vessel according to claim i, characterized in that the Protective sleeve is made of tungsten.
DES107545D 1932-12-20 1932-12-20 Meatlldampfentladungsgefaess with a wick-like insert inserted into the cathode Expired DE628380C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES107545D DE628380C (en) 1932-12-20 1932-12-20 Meatlldampfentladungsgefaess with a wick-like insert inserted into the cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES107545D DE628380C (en) 1932-12-20 1932-12-20 Meatlldampfentladungsgefaess with a wick-like insert inserted into the cathode

Publications (1)

Publication Number Publication Date
DE628380C true DE628380C (en) 1936-04-02

Family

ID=7528184

Family Applications (1)

Application Number Title Priority Date Filing Date
DES107545D Expired DE628380C (en) 1932-12-20 1932-12-20 Meatlldampfentladungsgefaess with a wick-like insert inserted into the cathode

Country Status (1)

Country Link
DE (1) DE628380C (en)

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