JPS57105938A - Manufacture of direct-heated cathode structure - Google Patents

Manufacture of direct-heated cathode structure

Info

Publication number
JPS57105938A
JPS57105938A JP18263080A JP18263080A JPS57105938A JP S57105938 A JPS57105938 A JP S57105938A JP 18263080 A JP18263080 A JP 18263080A JP 18263080 A JP18263080 A JP 18263080A JP S57105938 A JPS57105938 A JP S57105938A
Authority
JP
Japan
Prior art keywords
heater
board
auxiliary
supporting pin
weld
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.)
Pending
Application number
JP18263080A
Other languages
Japanese (ja)
Inventor
Yukio Tamaki
Ikuo Iwazawa
Hideo Nigimura
Kazumasa Nomura
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP18263080A priority Critical patent/JPS57105938A/en
Publication of JPS57105938A publication Critical patent/JPS57105938A/en
Pending 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

Abstract

PURPOSE:To facilitate the fixing of a heater by welding the heater to an auxiliary fixing board then arranging the auxiliary fixing board in the proximity of a cathode supporting pin to weld the heater to the cathode supporting pin thereafter removing the auxiliary fixing board. CONSTITUTION:An auxiliary fixing board 12 made of stainless steel formed with a hole 13 to be inserted with a coil heater and a bent section 14 extending across said hole 13 is prepared. A coiled heater 2 is wound around a molybdenum core then inserted into a hole 13 in the auxiliary board 12 and to weld the end section to the auxiliary board 12. Thereafter the core is fused and removed by the mixture of the sulfuric acid and the nitric acid. Then the auxiliary board 12 is fixed to a welder 18 arranged with the cathode supporting pins 6a, 6b planted on an insulated supporter 5, thereafter one end of the heater 2 is welded to the supporting pin 6a and the bent section 14 is developed to expand the heater 2 and to weld the other end to the supporting pin 6b. Consequently the fixing of the heater is facilitated.
JP18263080A 1980-12-23 1980-12-23 Manufacture of direct-heated cathode structure Pending JPS57105938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18263080A JPS57105938A (en) 1980-12-23 1980-12-23 Manufacture of direct-heated cathode structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18263080A JPS57105938A (en) 1980-12-23 1980-12-23 Manufacture of direct-heated cathode structure

Publications (1)

Publication Number Publication Date
JPS57105938A true JPS57105938A (en) 1982-07-01

Family

ID=16121642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18263080A Pending JPS57105938A (en) 1980-12-23 1980-12-23 Manufacture of direct-heated cathode structure

Country Status (1)

Country Link
JP (1) JPS57105938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6391928A (en) * 1986-10-03 1988-04-22 Matsushita Electric Ind Co Ltd Positioning device for linear cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6391928A (en) * 1986-10-03 1988-04-22 Matsushita Electric Ind Co Ltd Positioning device for linear cathode

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