ES314933A1 - Method of producing sintered electrodes - Google Patents

Method of producing sintered electrodes

Info

Publication number
ES314933A1
ES314933A1 ES0314933A ES314933A ES314933A1 ES 314933 A1 ES314933 A1 ES 314933A1 ES 0314933 A ES0314933 A ES 0314933A ES 314933 A ES314933 A ES 314933A ES 314933 A1 ES314933 A1 ES 314933A1
Authority
ES
Spain
Prior art keywords
activated
electrode body
activated mass
peroxides
tantalum
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
ES0314933A
Other languages
Spanish (es)
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.)
Andritz Hydro GmbH Austria
Original Assignee
Andritz Hydro GmbH Austria
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 Andritz Hydro GmbH Austria filed Critical Andritz Hydro GmbH Austria
Publication of ES314933A1 publication Critical patent/ES314933A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Powder Metallurgy (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A process for the manufacture of synthesized electrodes, in particular for low voltage steam discharge tubes, which are activated with peroxides and/or oxides of the alkaline earth metals, optionally mixed with iron, tantalum, tungsten, zirconium, molybdenum or the like, characterized in that iron powder, tantalum, tungsten, zirconium, molybdenum, or the like is mechanically intimately mixed with peroxides and/or oxides of the alkaline earth metals and the mixture is introduced into the electrode body, especially a metal cup, in such a way, that the activated mass is connected conductively to the wire of the electrode, after which the activated mass is embedded under pressure inside the electrode body and is then heated, for example with a high frequency generator, the time necessary for a small explosion to take place, the pressure of the explosion being directed in one direction in such a way that only or an inconsequential part of the activated mass is projected outside the electrode body and the visible part of the activated mass shows after the sintering a porous and rough surface. (Machine-translation by Google Translate, not legally binding)
ES0314933A 1964-07-08 1965-07-05 Method of producing sintered electrodes Expired ES314933A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT586464A AT247460B (en) 1964-07-08 1964-07-08 Process for the manufacture of sintered electrodes

Publications (1)

Publication Number Publication Date
ES314933A1 true ES314933A1 (en) 1966-02-01

Family

ID=3580368

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0314933A Expired ES314933A1 (en) 1964-07-08 1965-07-05 Method of producing sintered electrodes

Country Status (11)

Country Link
US (1) US3325281A (en)
AT (1) AT247460B (en)
BE (1) BE666308A (en)
CH (1) CH449117A (en)
DE (2) DE1120016B (en)
DK (1) DK111333B (en)
ES (1) ES314933A1 (en)
FR (1) FR1456547A (en)
GB (1) GB1119224A (en)
NL (1) NL148435B (en)
SE (1) SE308760B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120016B (en) * 1964-07-08 1961-12-21 Elger 1 Alpenlaendisches Unter Unheated electrode, especially for low-voltage fluorescent lamps, as well as lamps with such electrodes
NL6411355A (en) * 1964-09-30 1966-03-31
US3458913A (en) * 1966-04-19 1969-08-05 Siemens Ag Supply cathode for electrical discharge vessels and method for its production
US4135286A (en) * 1977-12-22 1979-01-23 United Technologies Corporation Sputtering target fabrication method
DE3232802A1 (en) * 1982-09-03 1984-03-08 Alfred Prof. Dr.-Ing. 7830 Emmendingen Walz METHOD AND DEVICE FOR PRODUCING ULTRAVIOLETTER RADIATION
US4710344A (en) * 1983-10-07 1987-12-01 Union Carbide Corporation Method of forming a getter assembly
US4822312A (en) * 1983-12-05 1989-04-18 Gte Products Corporation Electrode for high intensity discharge lamps
US5585694A (en) * 1990-12-04 1996-12-17 North American Philips Corporation Low pressure discharge lamp having sintered "cold cathode" discharge electrodes
DE19616408A1 (en) * 1996-04-24 1997-10-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electrode for discharge lamps

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE838031C (en) * 1952-03-27 Loewe Opta Aktiengesellschaft, Berlin-Steglitz Discharge vessel, in particular fluorescent tube
DE642722C (en) * 1931-12-19 1937-03-13 Claude Lumiere Sa Pour Les App Electric gas discharge lamp with noble gas, in particular helium gas, and positive column discharge
DE637206C (en) * 1932-09-07 1936-10-23 Lon Ladislaus Von Kramolin Gas or vapor-filled electric discharge lamp, in particular high-pressure lamp, with glow electrodes heated by the discharge
US2006081A (en) * 1934-03-02 1935-06-25 Hanovia Chemical & Mfg Co Electrode for vapor electric devices
US2117636A (en) * 1934-03-24 1938-05-17 Gerald B Tjoflat Thermionic electrode
US2175345A (en) * 1935-07-12 1939-10-10 Gen Electric Electric gaseous discharge device
FR50165E (en) * 1938-11-26 1940-01-17 Improvements in the manufacture of tubes and lamps, for electric discharges, on low voltage networks, for domestic use
BE511706A (en) * 1951-06-08
DE917860C (en) * 1951-11-01 1954-09-13 Patra Patent Treuhand Activation material for electrodes of electrical discharge vessels
DE894289C (en) * 1951-12-12 1953-10-22 Neon Baecker Explosion-proof fluorescent tube
AT183479B (en) * 1953-03-07 1955-10-10 Joseph Carl Dr Pole Electrode for discharge tubes
DE1686466U (en) * 1953-08-19 1954-11-04 Patra Patent Treuhand CATHODE FOR ELECTRIC DISCHARGE FLASH TUBES.
US2953443A (en) * 1957-02-11 1960-09-20 Alloyd Engineering Lab Inc Chemical heating composition, heating unit containing the same and method of manufacture
DE1120016B (en) * 1964-07-08 1961-12-21 Elger 1 Alpenlaendisches Unter Unheated electrode, especially for low-voltage fluorescent lamps, as well as lamps with such electrodes

Also Published As

Publication number Publication date
DE1120016B (en) 1961-12-21
CH449117A (en) 1967-12-31
SE308760B (en) 1969-02-24
DE1225757B (en) 1966-09-29
AT247460B (en) 1966-06-10
NL6508707A (en) 1966-01-10
US3325281A (en) 1967-06-13
DK111333B (en) 1968-07-29
GB1119224A (en) 1968-07-10
NL148435B (en) 1976-01-15
FR1456547A (en) 1966-07-08
BE666308A (en) 1965-11-03

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