JPS57130342A - Production of electron tube - Google Patents

Production of electron tube

Info

Publication number
JPS57130342A
JPS57130342A JP1432781A JP1432781A JPS57130342A JP S57130342 A JPS57130342 A JP S57130342A JP 1432781 A JP1432781 A JP 1432781A JP 1432781 A JP1432781 A JP 1432781A JP S57130342 A JPS57130342 A JP S57130342A
Authority
JP
Japan
Prior art keywords
stem
ring
glass
metal
metal ring
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
JP1432781A
Other languages
Japanese (ja)
Inventor
Hiromitsu Kawamura
Hiroshi Oki
Kazumasa Hirai
Kimimitsu Nakai
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 JP1432781A priority Critical patent/JPS57130342A/en
Publication of JPS57130342A publication Critical patent/JPS57130342A/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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/26—Sealing together parts of vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To improve the accuracy of relative positioning by a method wherein the contact portions of a glass bulb and a glass stem are joined together via a metal ring coated with glass having a low melting point, and then the bulb and the stem are melted and tightly joined together by heating the metal ring through the high-frequency heating method. CONSTITUTION:A ring-shaped projection 3g is formed above a stem 3e. A ring- shaped sealing member 10 consisting of a thin ring metal 10a and a low melting point glass member 10b covering the surface of the metal ring are concentrically provided between the end surface of a neck tube 1a and the projection 3g to be sealed together. A high frequency dielectric heating coil 12 is also concentrically provided on the periphery of and centering around a portion 11 to be sealed and power is supplied to heat and melt the portion for sealing purposes. In so doing, the positioning of the neck tube and the stem can be made highly accurate.
JP1432781A 1981-02-04 1981-02-04 Production of electron tube Pending JPS57130342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1432781A JPS57130342A (en) 1981-02-04 1981-02-04 Production of electron tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1432781A JPS57130342A (en) 1981-02-04 1981-02-04 Production of electron tube

Publications (1)

Publication Number Publication Date
JPS57130342A true JPS57130342A (en) 1982-08-12

Family

ID=11857970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1432781A Pending JPS57130342A (en) 1981-02-04 1981-02-04 Production of electron tube

Country Status (1)

Country Link
JP (1) JPS57130342A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63152842A (en) * 1986-12-17 1988-06-25 Toshiba Corp Vacuum vessel and its manufacture
JPS647451A (en) * 1987-06-30 1989-01-11 Nec Corp Stem for electronic tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63152842A (en) * 1986-12-17 1988-06-25 Toshiba Corp Vacuum vessel and its manufacture
JPS647451A (en) * 1987-06-30 1989-01-11 Nec Corp Stem for electronic tube

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