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KR870010593A - Dispenser cathode and method of manufacturing the same - Google Patents

Dispenser cathode and method of manufacturing the same Download PDF

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Publication number
KR870010593A
KR870010593A KR870003032A KR870003032A KR870010593A KR 870010593 A KR870010593 A KR 870010593A KR 870003032 A KR870003032 A KR 870003032A KR 870003032 A KR870003032 A KR 870003032A KR 870010593 A KR870010593 A KR 870010593A
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KR
South Korea
Prior art keywords
reservoir
tungsten
pellet
rhenium
molybdenum
Prior art date
Application number
KR870003032A
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Korean (ko)
Other versions
KR950002566B1 (en
Inventor
알ㆍ팔스 루이스
Original Assignee
죠엘 피ㆍ모스코위츠
세라딘, 인코포레이티드
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Publication date
Application filed by 죠엘 피ㆍ모스코위츠, 세라딘, 인코포레이티드 filed Critical 죠엘 피ㆍ모스코위츠
Publication of KR870010593A publication Critical patent/KR870010593A/en
Application granted granted Critical
Publication of KR950002566B1 publication Critical patent/KR950002566B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode

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  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)

Abstract

내용 없음No content

Description

디스펜서 음극 및 그의 제조방법Dispenser cathode and method of manufacturing the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명의 제조방법을 도시한 블록선도.1 is a block diagram showing a manufacturing method of the present invention.

제 2 도는 본 발명 장치의 단면도.2 is a cross-sectional view of the device of the present invention.

Claims (11)

내화성 금속으로 만든 저장기, 바륨 칼슘 알루미네이트와 텅스텐으로 구성되어 상기의 저장기 내에 들어있는 제 1 펠릿 ; 압축되고 소결된 다공성 텅스텐으로 구성되어 상기의 저장기 위에 위치되며 상기의 저장기를 밀봉시키기 위한 제 2 펠릿 ; 및 상기의 저장기와 펠릿에 열을 인가하여 그로부터 전류를 발산시키기 위한 수단으로 구성시켜서 된 디스펜서 음극.A reservoir made of a refractory metal, the first pellet comprising barium calcium aluminate and tungsten and contained in the reservoir; A second pellet composed of compressed and sintered porous tungsten and positioned above said reservoir for sealing said reservoir; And means for applying heat to said reservoir and pellet to dissipate current therefrom. 제 1 항에 있어서, 상기의 저장기를 수용 및 지지하기 위해 내부측벽면을 갖는 지지실린더를 또한 포함함을 특징으로 하는 디스펜서 음극.A dispenser cathode according to claim 1, further comprising a support cylinder having an inner side wall for accommodating and supporting said reservoir. 제 1 항에 있어서, 상기의 저장기는 몰리브덴, 레늄, 몰리브덴과 레늄의 조합, 텅스텐, 텅스텐과 레늄의 조합, 및 탄탈륨으로 구성된 그룹의 금속으로 형성됨을 특징으로 하는 디스펜서 음극.2. The dispenser cathode of claim 1 wherein said reservoir is formed of a metal of a group consisting of molybdenum, rhenium, a combination of molybdenum and rhenium, a combination of tungsten, tungsten and rhenium, and tantalum. 제 1 항에 있어서, 상기의 제 2 펠릿은 이리듐, 오스뮴, 루테늄, 및 레늄으로 구성된 그룹 중 적어도 하나의 금속으로 형성됨을 특징으로 하는 디스펜스 음극.The dispensing anode of claim 1, wherein the second pellet is formed of at least one metal selected from the group consisting of iridium, osmium, ruthenium, and rhenium. 제 2 항에 있어서, 상기의 지지실린더는 몰리브덴, 몰리브덴과 레늄의 조합, 텅스텐, 텅스텐과 레늄의 조합, 및 탄탈륨으로 구성된 그룹의 금속으로 형성됨을 특징으로 하는 디스펜서 음극.3. The dispenser cathode of claim 2, wherein the support cylinder is formed of a metal of a group consisting of molybdenum, a combination of molybdenum and rhenium, a combination of tungsten, tungsten and rhenium, and tantalum. 하기의 단계를 포함하는 디스펜서 음극의 제조방법.Method for producing a dispenser negative electrode comprising the following steps. a) 다공성 텅스텐 펠릿을 적어도 70%의 밀도로 압축 및 소결시키는 단계;a) compressing and sintering the porous tungsten pellets to a density of at least 70%; b) 내화성금속을 포함하는 저장기를 형성시키는 단계 ;b) forming a reservoir comprising a refractory metal; c) 지지실린더를 형성시키는 단계 ;c) forming a support cylinder; d) 바륨 칼슘 알루미네이트와 텅스텐을 포함하는 펠릿을 압축시키는 단계 ;d) compacting a pellet comprising barium calcium aluminate and tungsten; e) 상기의 저장기와 지지실린더를 조립시키는 단계 ;e) assembling the reservoir and the support cylinder; f) 단계 d의 펠릿을 단계 b의 저장기에 삽입시티는 단계 ; 및f) inserting the pellets of step d into the reservoir of step b; And g) 단계 d의 펠릿을 밀폐시키기 위해서 단계 a의 펠릿을 저장기에 밀봉시키는 단계g) sealing the pellet of step a to a reservoir to seal the pellet of step d 제 6 항에 있어서, 단계 a는 하기와 같은 단계로 포함함을 특징으로 하는 디스펜서음극의 제조방법.7. The method of claim 6, wherein step a comprises the following steps. a1) 10,000-20,000psi의 단축(單軸)압력을 4-7μm의 입자를 포함하는 텅스텐분말에 인가하는 단계 ;a1) applying a uniaxial pressure of 10,000-20,000 psi to the tungsten powder containing 4-7 μm of particles; a2) 압축된 텅스텐분말을 2,000-2,500℃에서 적어도 30분간 소결시키는 단계 ;a2) sintering the compressed tungsten powder at 2,000-2,500 ° C. for at least 30 minutes; 제 7 항에 있어서, 상기의 텅스텐분말을 20-25℃의 중량비의 이리듐, 오스뮴, 루테늄, 및 레늄으로 구성된 그룹의 멤버를 또한 포함함을 특징으로 하는 디스펜서 음극의 제조방법.8. The method of claim 7, wherein the tungsten powder further comprises a member of a group consisting of iridium, osmium, ruthenium, and rhenium in a weight ratio of 20-25 ° C. 제 6 항에 있어서, 상기의 저장기 형성단계는 다이프레스에 의해 수행됨을 특징으로 하는 디스펜서음극의 제조방법.7. The method of claim 6, wherein the reservoir forming step is performed by die pressing. 제 6 항에 있어서, 상기의 펠릿 밀봉단계는 단계 a의 펠릿을 단계 b의 저장기에 용접시킴으로써 수행됨을 특징으로 하는 디스펜서 음극의 제조방법.The method of claim 6, wherein the pellet sealing step is performed by welding the pellets of step a to the reservoir of step b. 제 6 항에 있어서, 단계 d에서 텅스텐은 혼합물의 약 20-50%를 포함함을 특징으로 하는 디스펜서 음극의 제조방법.7. The method of claim 6, wherein the tungsten in step d comprises about 20-50% of the mixture. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870003032A 1986-04-01 1987-03-31 Dispenser cathode and method of manufacturing the same KR950002566B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US84685986A 1986-04-01 1986-04-01
US846859 1986-04-01
US846,859 1997-05-01

Publications (2)

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KR870010593A true KR870010593A (en) 1987-11-30
KR950002566B1 KR950002566B1 (en) 1995-03-23

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Application Number Title Priority Date Filing Date
KR1019870003032A KR950002566B1 (en) 1986-04-01 1987-03-31 Dispenser cathode and method of manufacturing the same

Country Status (7)

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JP (1) JPS62237634A (en)
KR (1) KR950002566B1 (en)
DE (1) DE3708687A1 (en)
FR (1) FR2597660A1 (en)
GB (1) GB2188771B (en)
IT (1) IT1202706B (en)
NL (1) NL8700652A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100281800B1 (en) * 1996-06-27 2001-02-15 윤종용 Microwave power cutoff device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0821310B2 (en) * 1986-09-03 1996-03-04 株式会社日立製作所 Impregnated type cathode and method for producing the same
US4837480A (en) * 1988-03-28 1989-06-06 Hughes Aircraft Company Simplified process for fabricating dispenser cathodes
KR920004900B1 (en) * 1990-03-13 1992-06-22 삼성전관 주식회사 Impregnated Cathode Structure and Manufacturing Method Thereof
DE4114856A1 (en) * 1991-05-07 1992-11-12 Licentia Gmbh STOCK CATHODE AND METHOD FOR THE PRODUCTION THEREOF
CN102637566B (en) * 2012-03-30 2014-11-19 安徽华东光电技术研究所 Barium-tungsten cathode with high current density and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE507171A (en) * 1950-11-18
US2741717A (en) * 1951-06-14 1956-04-10 Siemens Ag Dispenser type cathode having gettercoated parts
NL96853C (en) * 1953-09-24
HU143979A (en) * 1953-11-05
DE1138870B (en) * 1960-09-21 1962-10-31 Siemens Ag Storage cathode for electrical discharge vessels
DE1132256B (en) * 1961-12-27 1962-06-28 Siemens Ag Cathode for electrical discharge vessels and process for their manufacture
US3373307A (en) * 1963-11-21 1968-03-12 Philips Corp Dispenser cathode
DE1223062B (en) * 1964-02-14 1966-08-18 Siemens Ag Storage cathode for electrical discharge vessels and process for their manufacture
BE759174A (en) * 1969-11-21 1971-05-19 Philips Nv RESERVE CATHODE AND ITS REALIZATION PROCESS
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
JPS5652835A (en) * 1979-10-01 1981-05-12 Hitachi Ltd Impregnated cathode
DE3561180D1 (en) * 1984-02-24 1988-01-21 Emi Varian Ltd Thermionic electron emitter
JPS61183838A (en) * 1985-02-08 1986-08-16 Hitachi Ltd Impregnated type cathode
JPS62133632A (en) * 1985-12-04 1987-06-16 Nec Corp Impregnated type cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100281800B1 (en) * 1996-06-27 2001-02-15 윤종용 Microwave power cutoff device

Also Published As

Publication number Publication date
NL8700652A (en) 1987-11-02
KR950002566B1 (en) 1995-03-23
GB8705511D0 (en) 1987-04-15
JPS62237634A (en) 1987-10-17
FR2597660A1 (en) 1987-10-23
IT1202706B (en) 1989-02-09
GB2188771B (en) 1990-12-19
DE3708687A1 (en) 1987-10-08
IT8719867A0 (en) 1987-03-26
GB2188771A (en) 1987-10-07

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