GB485220A - Improvements in electrodes and other articles made from nickel or nickel alloy - Google Patents

Improvements in electrodes and other articles made from nickel or nickel alloy

Info

Publication number
GB485220A
GB485220A GB4515/37A GB451537A GB485220A GB 485220 A GB485220 A GB 485220A GB 4515/37 A GB4515/37 A GB 4515/37A GB 451537 A GB451537 A GB 451537A GB 485220 A GB485220 A GB 485220A
Authority
GB
United Kingdom
Prior art keywords
nickel
zirconium
alloy
electrodes
added
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
GB4515/37A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB485220A publication Critical patent/GB485220A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/002—Chemical composition and manufacture chemical

Landscapes

  • Discharge Lamp (AREA)

Abstract

An electrode or other component (other than a component acting as a resistance) of an electric discharge tube or incandescent lamp consists at least in part of a nickel-zirconium alloy which is free from manganese and silicon, has nickel as the major constituent and contains 0,05 to 3 per cent of zirconium. 1 Kilogramme of pure nickel may be melted at 1500 DEG C. in a non-oxidizing atmosphere in a crucible of aluminium oxide, magnesium oxide or zirconium oxide and 15 gms. of pure zirconium are added. The alloy is cast into rods which are cleaned and swaged or rolled at 750-800 DEG C. and shaped. The zirconium may be added in the form of its alloy with nickel or titanium.
GB4515/37A 1936-02-17 1937-02-15 Improvements in electrodes and other articles made from nickel or nickel alloy Expired GB485220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE485220X 1936-02-17

Publications (1)

Publication Number Publication Date
GB485220A true GB485220A (en) 1938-05-17

Family

ID=6543250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4515/37A Expired GB485220A (en) 1936-02-17 1937-02-15 Improvements in electrodes and other articles made from nickel or nickel alloy

Country Status (1)

Country Link
GB (1) GB485220A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168649B (en) * 1959-06-29 1964-04-23 Vacuumschmelze Ag Nickel-hafnium alloy
FR2401230A1 (en) * 1977-08-27 1979-03-23 Ngk Spark Plug Co NICKEL-BASED ALLOY SUITABLE PARTICULARLY FOR THE HEATING ELEMENT OF AN INCANDESCENT CANDLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168649B (en) * 1959-06-29 1964-04-23 Vacuumschmelze Ag Nickel-hafnium alloy
FR2401230A1 (en) * 1977-08-27 1979-03-23 Ngk Spark Plug Co NICKEL-BASED ALLOY SUITABLE PARTICULARLY FOR THE HEATING ELEMENT OF AN INCANDESCENT CANDLE

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