JPS5452629A - Bulb member - Google Patents

Bulb member

Info

Publication number
JPS5452629A
JPS5452629A JP11861177A JP11861177A JPS5452629A JP S5452629 A JPS5452629 A JP S5452629A JP 11861177 A JP11861177 A JP 11861177A JP 11861177 A JP11861177 A JP 11861177A JP S5452629 A JPS5452629 A JP S5452629A
Authority
JP
Japan
Prior art keywords
radiation
laser beam
metal
bulb member
temp
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
JP11861177A
Other languages
Japanese (ja)
Inventor
Toshiharu Matsuki
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 JP11861177A priority Critical patent/JPS5452629A/en
Publication of JPS5452629A publication Critical patent/JPS5452629A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To prevent the occurence of electric leak due to a rise in temp. accompanying gas release by covering the surface of a bulb member in the vicinity of a cathode with a different metal by radiation of laser beam.
CONSTITUTION: The surface of a bulb member in the vicinity of a cathode raising the temp. inside the member is covered with a different metal such as Ni, Cr, W, Fe or Co by radiation of leaser beam. At this time, powder, foil pellets, etc. of the above metal are mounted on the surface and irradiated with laser beam. The radiation of laser beam may be carried out while dropping powder of the above metal onto the surface. Thus, the metal with little gas release is simply covered at a low cost
COPYRIGHT: (C)1979,JPO&Japio
JP11861177A 1977-10-04 1977-10-04 Bulb member Pending JPS5452629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11861177A JPS5452629A (en) 1977-10-04 1977-10-04 Bulb member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11861177A JPS5452629A (en) 1977-10-04 1977-10-04 Bulb member

Publications (1)

Publication Number Publication Date
JPS5452629A true JPS5452629A (en) 1979-04-25

Family

ID=14740830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11861177A Pending JPS5452629A (en) 1977-10-04 1977-10-04 Bulb member

Country Status (1)

Country Link
JP (1) JPS5452629A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6036615A (en) * 1983-08-06 1985-02-25 Nippon Steel Corp Treatment of metallic surface layer by melting
JPS60121278A (en) * 1983-12-02 1985-06-28 Fuji Electric Corp Res & Dev Ltd Surface treatment of thick steel member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6036615A (en) * 1983-08-06 1985-02-25 Nippon Steel Corp Treatment of metallic surface layer by melting
JPH0372707B2 (en) * 1983-08-06 1991-11-19 Nippon Steel Corp
JPS60121278A (en) * 1983-12-02 1985-06-28 Fuji Electric Corp Res & Dev Ltd Surface treatment of thick steel member

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