JPS55161331A - Manufacture of hot cathode - Google Patents

Manufacture of hot cathode

Info

Publication number
JPS55161331A
JPS55161331A JP6895179A JP6895179A JPS55161331A JP S55161331 A JPS55161331 A JP S55161331A JP 6895179 A JP6895179 A JP 6895179A JP 6895179 A JP6895179 A JP 6895179A JP S55161331 A JPS55161331 A JP S55161331A
Authority
JP
Japan
Prior art keywords
substrate metal
securing
created
sleeve
substrate
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.)
Granted
Application number
JP6895179A
Other languages
Japanese (ja)
Other versions
JPS6255256B2 (en
Inventor
Tadanori Taguchi
Yukio Honda
Toshiyuki Aida
Ushio Kawabe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6895179A priority Critical patent/JPS55161331A/en
Publication of JPS55161331A publication Critical patent/JPS55161331A/en
Publication of JPS6255256B2 publication Critical patent/JPS6255256B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE:To improve productivity by filling electron emissive substances in a hollow body consisting of the substrate metal for electron tube cathodes, performing machining, and securing it to a sleeve. CONSTITUTION:A single or a plurality of holes 2 are perforated in the substrate metal 1. Subsequently, after the composite body 4 where the electron emissive substances 3 are filled in this hole 2 and the cross section decreases into a desired cross-sectional shape by machining, the cathode 5 is created by slicing it. Then the indirectly heated cathode 7 is created by securing it in the sleeve 6. The substrate metal 1 can use all the substrate metals that are used as coated or impregnated oxide.
JP6895179A 1979-06-04 1979-06-04 Manufacture of hot cathode Granted JPS55161331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6895179A JPS55161331A (en) 1979-06-04 1979-06-04 Manufacture of hot cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6895179A JPS55161331A (en) 1979-06-04 1979-06-04 Manufacture of hot cathode

Publications (2)

Publication Number Publication Date
JPS55161331A true JPS55161331A (en) 1980-12-15
JPS6255256B2 JPS6255256B2 (en) 1987-11-19

Family

ID=13388474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6895179A Granted JPS55161331A (en) 1979-06-04 1979-06-04 Manufacture of hot cathode

Country Status (1)

Country Link
JP (1) JPS55161331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363055A2 (en) * 1988-10-05 1990-04-11 Fujitsu Limited Electron gun and process of producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363055A2 (en) * 1988-10-05 1990-04-11 Fujitsu Limited Electron gun and process of producing same

Also Published As

Publication number Publication date
JPS6255256B2 (en) 1987-11-19

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