FR731184A - Procédé de fabrication de cathodes chauffées pour tubes à décharge électrique - Google Patents

Procédé de fabrication de cathodes chauffées pour tubes à décharge électrique

Info

Publication number
FR731184A
FR731184A FR731184DA FR731184A FR 731184 A FR731184 A FR 731184A FR 731184D A FR731184D A FR 731184DA FR 731184 A FR731184 A FR 731184A
Authority
FR
France
Prior art keywords
manufacturing process
electric discharge
discharge tubes
heated cathodes
cathodes
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
Other languages
English (en)
French (fr)
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.)
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG 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 Allgemeine Elektricitaets Gesellschaft, AEG AG filed Critical Allgemeine Elektricitaets Gesellschaft
Application granted granted Critical
Publication of FR731184A publication Critical patent/FR731184A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/047—Cathodes having impregnated bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/031—Pressing powder with other step
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/1216—Continuous interengaged phases of plural metals, or oriented fiber containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/1216—Continuous interengaged phases of plural metals, or oriented fiber containing
    • Y10T428/12174—Mo or W containing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
FR731184D 1931-02-14 1932-02-09 Procédé de fabrication de cathodes chauffées pour tubes à décharge électrique Expired FR731184A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE392678X 1931-02-14

Publications (1)

Publication Number Publication Date
FR731184A true FR731184A (fr) 1932-08-30

Family

ID=6387059

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731184D Expired FR731184A (fr) 1931-02-14 1932-02-09 Procédé de fabrication de cathodes chauffées pour tubes à décharge électrique

Country Status (4)

Country Link
US (1) US1902478A (pm)
FR (1) FR731184A (pm)
GB (1) GB392678A (pm)
NL (1) NL37166C (pm)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422439A (en) * 1943-01-29 1947-06-17 American Electro Metal Corp Method of manufacturing composite structural materials
US2934482A (en) * 1950-09-07 1960-04-26 Brooks Harvey Nuclear reactor fuel element and method of manufacture
US2881068A (en) * 1952-04-28 1959-04-07 Wargons Ab Method of treating a ferrous melt with a porous sintered metal body impregnated with a treating agent
US5007475A (en) * 1988-11-10 1991-04-16 Lanxide Technology Company, Lp Method for forming metal matrix composite bodies containing three-dimensionally interconnected co-matrices and products produced thereby

Also Published As

Publication number Publication date
NL37166C (pm)
GB392678A (en) 1933-05-25
US1902478A (en) 1933-03-21

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