JPS5693246A - Production of magnetron cathode body - Google Patents

Production of magnetron cathode body

Info

Publication number
JPS5693246A
JPS5693246A JP16923879A JP16923879A JPS5693246A JP S5693246 A JPS5693246 A JP S5693246A JP 16923879 A JP16923879 A JP 16923879A JP 16923879 A JP16923879 A JP 16923879A JP S5693246 A JPS5693246 A JP S5693246A
Authority
JP
Japan
Prior art keywords
supporting members
magnetron
nonoxidative
gas
gaps
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
JP16923879A
Other languages
Japanese (ja)
Other versions
JPS6057653B2 (en
Inventor
Hideo Koizumi
Tadashi Morita
Koji Ishige
Tadashi Hayashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54169238A priority Critical patent/JPS6057653B2/en
Publication of JPS5693246A publication Critical patent/JPS5693246A/en
Publication of JPS6057653B2 publication Critical patent/JPS6057653B2/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microwave Tubes (AREA)

Abstract

PURPOSE:To improve the life of a magnetron by heating filament supporting members formed in a nonoxidative gas atmosphere with sintered high melting point metal, in order to substitute gases included in gaps between the supporting members with the nonoxidative gas. CONSTITUTION:Supporting members 3, 4 of a filament 1 for a magnetron cathode body is formed by molding and sintering molybdenum powder. The supporting members 3, 4 are heat treated at 1,000-1,400 deg.C for 1hr in a nonoxidative atomsphere such as hydrogen gas or mixture of hydrogen and nitrogen gas. Air or other gases in gaps between the supporting members 3, 4 are substituted with the nonoxidative gas through the heat treatment. Thus, gasious components in the supporting members are removed easily through a vacuum exhaust treatment in the production process of the magnetron, the evacuated state is maintained for long time, and the life of the magnetron can be improved.
JP54169238A 1979-12-27 1979-12-27 Manufacturing method of magnetron cathode body Expired JPS6057653B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54169238A JPS6057653B2 (en) 1979-12-27 1979-12-27 Manufacturing method of magnetron cathode body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54169238A JPS6057653B2 (en) 1979-12-27 1979-12-27 Manufacturing method of magnetron cathode body

Publications (2)

Publication Number Publication Date
JPS5693246A true JPS5693246A (en) 1981-07-28
JPS6057653B2 JPS6057653B2 (en) 1985-12-16

Family

ID=15882791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54169238A Expired JPS6057653B2 (en) 1979-12-27 1979-12-27 Manufacturing method of magnetron cathode body

Country Status (1)

Country Link
JP (1) JPS6057653B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110676137A (en) * 2019-09-16 2020-01-10 九江学院 Preparation method of cathode for magnetron

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52137968A (en) * 1976-05-14 1977-11-17 Hitachi Ltd Preparation for magnetron cathode construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52137968A (en) * 1976-05-14 1977-11-17 Hitachi Ltd Preparation for magnetron cathode construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110676137A (en) * 2019-09-16 2020-01-10 九江学院 Preparation method of cathode for magnetron
CN110676137B (en) * 2019-09-16 2022-05-27 九江学院 Preparation method of cathode for magnetron

Also Published As

Publication number Publication date
JPS6057653B2 (en) 1985-12-16

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