JPS54162954A - Hot-cathode - Google Patents

Hot-cathode

Info

Publication number
JPS54162954A
JPS54162954A JP7255278A JP7255278A JPS54162954A JP S54162954 A JPS54162954 A JP S54162954A JP 7255278 A JP7255278 A JP 7255278A JP 7255278 A JP7255278 A JP 7255278A JP S54162954 A JPS54162954 A JP S54162954A
Authority
JP
Japan
Prior art keywords
substrate
paste
heater
hot
groove
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
JP7255278A
Other languages
Japanese (ja)
Inventor
Masayasu Koitabashi
Morio Yamamoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7255278A priority Critical patent/JPS54162954A/en
Publication of JPS54162954A publication Critical patent/JPS54162954A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To obtain a hot-cathod featuring a high heat efficiency and excellent quick acting property by coating the paste composed of the heat-resistance metal powder or the like and the binder onto the insulating substrate and then fusing the paste with irradiation of the laser beam and the like and then solidification given to form the heater.
CONSTITUTION: Insulating substrate 1, featuring a disk shape, contains groove 11 on its surface. The paste composed of the organic binder and the heat-resistance metal powder is coated along groove 11 and in a fixed thickness. This paste is irradiated by the laser beam or the electron beam to be fused and then solidifed. As a result, heater 2 is buried into groove 11 on substrate 1 and at nearly the same level as the surface of the substrate. And the spot welding is given to the Ni plate of a fixed thickness at the center part of heater 2 in order to form cathod-type substrate 3. Then electron discharge material layer 4 is coated on substrate 3. In such way, a hot-cathode can be obtained with a high heat efficiency and excellent quick acting property.
COPYRIGHT: (C)1979,JPO&Japio
JP7255278A 1978-06-14 1978-06-14 Hot-cathode Pending JPS54162954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7255278A JPS54162954A (en) 1978-06-14 1978-06-14 Hot-cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7255278A JPS54162954A (en) 1978-06-14 1978-06-14 Hot-cathode

Publications (1)

Publication Number Publication Date
JPS54162954A true JPS54162954A (en) 1979-12-25

Family

ID=13492628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7255278A Pending JPS54162954A (en) 1978-06-14 1978-06-14 Hot-cathode

Country Status (1)

Country Link
JP (1) JPS54162954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172030A (en) * 1988-01-20 1992-12-15 Eev Limited Magnetron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172030A (en) * 1988-01-20 1992-12-15 Eev Limited Magnetron

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