JPS577042A - Manufacture of electron gun cathode assembly - Google Patents

Manufacture of electron gun cathode assembly

Info

Publication number
JPS577042A
JPS577042A JP8020280A JP8020280A JPS577042A JP S577042 A JPS577042 A JP S577042A JP 8020280 A JP8020280 A JP 8020280A JP 8020280 A JP8020280 A JP 8020280A JP S577042 A JPS577042 A JP S577042A
Authority
JP
Japan
Prior art keywords
core metal
manufacture
core
electron gun
cathode assembly
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
JP8020280A
Other languages
Japanese (ja)
Other versions
JPH0140457B2 (en
Inventor
Misao Ishikawa
Shigeo Shimomura
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 JP8020280A priority Critical patent/JPS577042A/en
Publication of JPS577042A publication Critical patent/JPS577042A/en
Publication of JPH0140457B2 publication Critical patent/JPH0140457B2/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)

Abstract

PURPOSE:To obtain a product having high quality, by employing a core having the relief section at the rear side of a laser welding point to perform the welding thereby eliminating the fusion and the deformation of the core. CONSTITUTION:A relief section 4a having small diameter is provided at the rear side of the welding point of a core metal 4 welded by means of a laser beam 5. The sleeve 1, disc 2, and a cap 3 are positioned by said core metal 4, and welded by means of a laser beam 5, then the heat is dispersed through the relief section 4a while since the laser heat isn't transmitted directly to the core metal 4, the fusion and the deformation of the core metal 4 is prevented thereby the adhesion of the core metal 4 to the sleeve 1 is prevented.
JP8020280A 1980-06-16 1980-06-16 Manufacture of electron gun cathode assembly Granted JPS577042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8020280A JPS577042A (en) 1980-06-16 1980-06-16 Manufacture of electron gun cathode assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8020280A JPS577042A (en) 1980-06-16 1980-06-16 Manufacture of electron gun cathode assembly

Publications (2)

Publication Number Publication Date
JPS577042A true JPS577042A (en) 1982-01-14
JPH0140457B2 JPH0140457B2 (en) 1989-08-29

Family

ID=13711792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8020280A Granted JPS577042A (en) 1980-06-16 1980-06-16 Manufacture of electron gun cathode assembly

Country Status (1)

Country Link
JP (1) JPS577042A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517738A (en) * 1982-04-24 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Method for packaging electronic parts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5074962A (en) * 1973-11-02 1975-06-19
JPS50103250A (en) * 1974-01-11 1975-08-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5074962A (en) * 1973-11-02 1975-06-19
JPS50103250A (en) * 1974-01-11 1975-08-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517738A (en) * 1982-04-24 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Method for packaging electronic parts

Also Published As

Publication number Publication date
JPH0140457B2 (en) 1989-08-29

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