JPS56116244A - Manufacturing method for electrode for electron gun - Google Patents

Manufacturing method for electrode for electron gun

Info

Publication number
JPS56116244A
JPS56116244A JP1781280A JP1781280A JPS56116244A JP S56116244 A JPS56116244 A JP S56116244A JP 1781280 A JP1781280 A JP 1781280A JP 1781280 A JP1781280 A JP 1781280A JP S56116244 A JPS56116244 A JP S56116244A
Authority
JP
Japan
Prior art keywords
area
electrode
burring
joint
inner diameter
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
JP1781280A
Other languages
Japanese (ja)
Other versions
JPS6310856B2 (en
Inventor
Satoru Endo
Minoru Yabe
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 JP1781280A priority Critical patent/JPS56116244A/en
Publication of JPS56116244A publication Critical patent/JPS56116244A/en
Publication of JPS6310856B2 publication Critical patent/JPS6310856B2/ja
Granted 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
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes

Abstract

PURPOSE:To obtain an electrode with a uniform cross section R by applying coining which thickness the joint of a projected cylindrical area between the projecting and burring of a principal lens electrode. CONSTITUTION:A lower hole 12 with an inner diameter d1 is perforated on a material plate 10 by punching 11. Then a projected area 14 is formed by projecting 13. Besides, bulging work in combination with ironing is applied to the side wall of the bulged area 14 and the height of the bulged area 14 is improved. Coining 26 is applied to the joint 25 of a projected cylindrical area 24 and the area 24 is made thick. Subsequently, a burring lower hole 17 with an inner diameter d3 is perforated by punching 16 and a lens area 20 with an inner diameter D is formed by burring 18. This permits the thickness of the burred joint area to be made uniform over all surfaces and obtains an electrode with a uniform cross section R.
JP1781280A 1980-02-18 1980-02-18 Manufacturing method for electrode for electron gun Granted JPS56116244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1781280A JPS56116244A (en) 1980-02-18 1980-02-18 Manufacturing method for electrode for electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1781280A JPS56116244A (en) 1980-02-18 1980-02-18 Manufacturing method for electrode for electron gun

Publications (2)

Publication Number Publication Date
JPS56116244A true JPS56116244A (en) 1981-09-11
JPS6310856B2 JPS6310856B2 (en) 1988-03-09

Family

ID=11954138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1781280A Granted JPS56116244A (en) 1980-02-18 1980-02-18 Manufacturing method for electrode for electron gun

Country Status (1)

Country Link
JP (1) JPS56116244A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58214254A (en) * 1982-06-04 1983-12-13 Hitachi Ltd Electrode for electron gun
JPS6047347A (en) * 1983-08-24 1985-03-14 Toshiba Corp Method of manufacturing parts of electron gun
JPS61296639A (en) * 1985-06-26 1986-12-27 Hitachi Ltd Processing method for electrode parts for electron gun
JP2009006392A (en) * 2007-06-29 2009-01-15 Yumex Corp Method of forming flange joint with cylinder part, and flange joint with cylindrical part

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58214254A (en) * 1982-06-04 1983-12-13 Hitachi Ltd Electrode for electron gun
JPH0379814B2 (en) * 1982-06-04 1991-12-20 Hitachi Ltd
JPS6047347A (en) * 1983-08-24 1985-03-14 Toshiba Corp Method of manufacturing parts of electron gun
JPS61296639A (en) * 1985-06-26 1986-12-27 Hitachi Ltd Processing method for electrode parts for electron gun
JP2009006392A (en) * 2007-06-29 2009-01-15 Yumex Corp Method of forming flange joint with cylinder part, and flange joint with cylindrical part

Also Published As

Publication number Publication date
JPS6310856B2 (en) 1988-03-09

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