KR960025916A - 직열형금극 및 그 제조방법 - Google Patents

직열형금극 및 그 제조방법 Download PDF

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Publication number
KR960025916A
KR960025916A KR1019940038126A KR19940038126A KR960025916A KR 960025916 A KR960025916 A KR 960025916A KR 1019940038126 A KR1019940038126 A KR 1019940038126A KR 19940038126 A KR19940038126 A KR 19940038126A KR 960025916 A KR960025916 A KR 960025916A
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KR
South Korea
Prior art keywords
pallet
cathode
ball mill
series
producing
Prior art date
Application number
KR1019940038126A
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English (en)
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KR100338035B1 (ko
Inventor
이광민
주규남
최종서
김근배
최귀석
Original Assignee
윤종용
삼성전관 주식회사
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 윤종용, 삼성전관 주식회사 filed Critical 윤종용
Priority to KR1019940038126A priority Critical patent/KR100338035B1/ko
Priority to TW084111808A priority patent/TW301008B/zh
Priority to US08/565,545 priority patent/US5773922A/en
Priority to JP31539295A priority patent/JP2818566B2/ja
Priority to CN95120217A priority patent/CN1052105C/zh
Priority to EP95309385A priority patent/EP0720195A1/en
Priority to HU9503761A priority patent/HU220471B1/hu
Priority to RU96121013/09A priority patent/RU2160942C2/ru
Priority to RU95122476A priority patent/RU2104600C1/ru
Priority to MYPI95004145A priority patent/MY112496A/en
Publication of KR960025916A publication Critical patent/KR960025916A/ko
Application granted granted Critical
Publication of KR100338035B1 publication Critical patent/KR100338035B1/ko

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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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/09—Mixtures of metallic powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0466—Alloys based on noble metals
    • 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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/047—Cathodes having impregnated bodies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)
  • Cold Cathode And The Manufacture (AREA)

Abstract

본 발명은 컬러 수상관의 3전자총에 가장 적합하게 사용되는 직열형음극 및 그 제조방법에 관한 것으로, 제1공정에서 혼합된 분말에 아트리터를 이용한 고에너지볼 밀(Ball Mill) 법으로 충격을 가하여 기계적으로 합금을 형성하는 제2공정과, 상기 제2공정에 의해 형성된 합금에 일정압력으로 팰릿(30)를 성형하는 제3공정으로 이루어진 직열형음극의 제조방법과, 제1항의 방법으로 제조된 팰릿을 사용하는 음극에 있어서, 상기팰릿(30)의 내부를 관통하여 텅스텐와이어(32)가 설치되어 전류도통에 의하여 열을 발생시켜 상기팰릿(30)으로부터 전자가 방출되도록 구성되 전자관용 직열형음극으로서, 고전류밀도, 사용시간연장 및 제조공정단축을 가져오기 위한 직열형음극 및 그 제조방법을 제공하는데 그 목적이 있다.

Description

직열형금극 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 일반적인 전자관용 산화물 음극의 개략적인 단면도, 제2도는 본 발명의 기계적인 합금화장치의 단면도, 제3도는 본발명의 직열형음극의 개략적인 단면도.

Claims (7)

  1. 전자관용의 전자방출선인 직열형음극을 제조하는 방법에 있어서, 주성분인 Ir와 보조성분인 Ce을 일정비율로 혼합하는 제1공정과, 상기 제1공정에서 혼합된 분말에 아트리터를 이용한 고에너지 볼 밀(Ball Mill)법으로 충격을 가하여 기계적으로 합금을 형성하는 제2공정과 상기 제2공정에 의해 형성된 합금에 일정 압력으로팰릿(30)를 성형하는 제3공정과, 상기 제3과정에 의해 성형된 팰릿(pellet)(30) 내에 포함된 잔류가스를 제거하기 위한 제 4공정과, 상기 제4공정의 가스제거를 한 후 팰릿(30)의 전자방출 특성을 평가하는 제5공정으로 이루어진것을 특징으로 하는 직열형음극의 제조방법.
  2. 제1항에 있어서, 상기 아트리터(attritor)를 이용한 볼 밀법 이외에 바이브레이션 밀(vibration mill), 쉐이커 밀(shaker mill)의 방법으로 기계적합금화공정을 이루는 것을 특징으로 하는 직열형음극의 제조방법.
  3. 제1항에 있어서, 상기 고에너지 볼 밀법이외에 저에너지 볼 밀법은 통상적인 볼밀공정으로서 회전속도가 90~120rpm이고, 공정시간이 100~1000시간이며, 공정제어제가 스테아린산이며, 분말과 볼의 비가 50:1~150:1의 공정으로 이루어진 것을 특징으로 하는 직열형음극의 제조방법.
  4. 제1항에 있어서, 상기 고에너지 볼 밀법은 회전속도가 300~700rpm이고, 공정시간이 10~50시간이며,공정제어가 스테아리크산이며, 분말과 볼의 비가 50:1~150:1의 공정으로 이루어진 것을 특징으로 하는 직열형음극의 제조방법.
  5. 제1항에 있어서, 상기 제4공정 이후에 선택적인 공정인 열처리공정은 1300~1800℃ 범위내에서 1~500시간 동안 불활성가스 또는 진공상태에서 합금의 균질화를 위한 공정으로 이루어진 것을 특징으로 하는 직열형음극의 제조방법.
  6. 제1항의 방법으로 제조된 직열형음극에 있어서, 주성분인 Ir, Pt, Au 성분이 85~95wt%이고, 보조성분인 Ce, La, Pr 성분이 5~15wt%인 성분으로 이루는 것을 특징으로 하는 전자관용 직열형음극.
  7. 제1항의 방법으로 제조된 팰릿을 사용하는 음극에 있어서,상기 팰릿(30)의 내부를 관통하여 텅스텐와이어(32)가 설치되어 전류도통에 의하여 열을 발생시켜 상기 팰릿(30)으로부터 전자가 방출되도록 구성된 것을 특징으로 는 전자관용 직열형음극.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940038126A 1994-12-28 1994-12-28 직열형음극및그제조방법 KR100338035B1 (ko)

Priority Applications (10)

Application Number Priority Date Filing Date Title
KR1019940038126A KR100338035B1 (ko) 1994-12-28 1994-12-28 직열형음극및그제조방법
TW084111808A TW301008B (ko) 1994-12-28 1995-11-07
US08/565,545 US5773922A (en) 1994-12-28 1995-11-30 Direct heating cathode and process for producing such
CN95120217A CN1052105C (zh) 1994-12-28 1995-12-04 直热式阴极及其制造方法
JP31539295A JP2818566B2 (ja) 1994-12-28 1995-12-04 直熱型陰極およびその製造方法
EP95309385A EP0720195A1 (en) 1994-12-28 1995-12-21 Direct heating cathode and process for producing such
HU9503761A HU220471B1 (hu) 1994-12-28 1995-12-22 Eljárás közvetlen fűtésű katódként használható ötvözet tabletta előállítására és az eljárással előállított ötvözet tabletta
RU96121013/09A RU2160942C2 (ru) 1994-12-28 1995-12-27 Катод прямого накала
RU95122476A RU2104600C1 (ru) 1994-12-28 1995-12-27 Способ изготовления катода прямого накала
MYPI95004145A MY112496A (en) 1994-12-28 1995-12-28 Direct heating cathode and process for producing such

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940038126A KR100338035B1 (ko) 1994-12-28 1994-12-28 직열형음극및그제조방법

Publications (2)

Publication Number Publication Date
KR960025916A true KR960025916A (ko) 1996-07-20
KR100338035B1 KR100338035B1 (ko) 2002-11-23

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KR1019940038126A KR100338035B1 (ko) 1994-12-28 1994-12-28 직열형음극및그제조방법

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Country Link
US (1) US5773922A (ko)
EP (1) EP0720195A1 (ko)
JP (1) JP2818566B2 (ko)
KR (1) KR100338035B1 (ko)
CN (1) CN1052105C (ko)
HU (1) HU220471B1 (ko)
MY (1) MY112496A (ko)
RU (2) RU2160942C2 (ko)
TW (1) TW301008B (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5407633A (en) * 1994-03-15 1995-04-18 U.S. Philips Corporation Method of manufacturing a dispenser cathode
UA28129C2 (uk) * 1998-10-05 2000-10-16 Товариство З Обмеженою Відповідальністю "Нікос-Еко" Матеріал для катода електронних приладів
US7217386B2 (en) * 2004-08-02 2007-05-15 The Regents Of The University Of California Preparation of nanocomposites of alumina and titania
JP6285254B2 (ja) * 2014-04-02 2018-02-28 大学共同利用機関法人 高エネルギー加速器研究機構 電子ビーム生成用カソード部材およびその製造方法
RU2639719C1 (ru) * 2016-11-29 2017-12-22 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Способ изготовления композитного катодного материала
US10615599B2 (en) * 2018-07-12 2020-04-07 John Bennett Efficient low-voltage grid for a cathode
US10566168B1 (en) 2018-08-10 2020-02-18 John Bennett Low voltage electron transparent pellicle
JP6761522B1 (ja) 2019-09-02 2020-09-23 株式会社コベルコ科研 電子ビーム生成用カソード部材およびその製造方法
JP6922054B2 (ja) * 2019-09-02 2021-08-18 株式会社コベルコ科研 電子ビーム生成用カソード部材およびその製造方法

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GB159789A (en) * 1920-03-31 1921-03-10 Schneider & Cie Improved apparatus for distributing the combustible fluid and air in explosion engines
US1689338A (en) * 1921-11-19 1928-10-30 Western Electric Co Electron-discharge device
GB1137124A (en) * 1964-12-23 1968-12-18 Nat Res Dev Thermionic electron emitter
US3766423A (en) * 1971-12-03 1973-10-16 Itt Integral emissive electrode
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GB1591789A (en) * 1977-10-06 1981-06-24 Emi Varian Ltd Electron emitter
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ATE30811T1 (de) * 1983-09-30 1987-11-15 Bbc Brown Boveri & Cie Gluehkathode mit hohem emissionsvermoegen fuer eine elektronenroehre und verfahren zu deren herstellung.
US4808137A (en) * 1988-05-31 1989-02-28 The United States Of America As Represented By The Secretary Of The Army Method of making a cathode from tungsten and iridium powders using a bariumaluminoiridiate as the impregnant
JPH0364827A (ja) * 1989-08-02 1991-03-20 Mitsubishi Electric Corp 電子管用陰極の製法
DE4026298A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Roentgenroehre mit einem elektronenemitter
US5007874A (en) * 1990-10-15 1991-04-16 The United States Of America As Represented By The Secretary Of The Army Method of making a cathode from tungsten and iridium powders using a reaction product from reacting a group III A metal with barium peroxide as an impregnant
US5407633A (en) * 1994-03-15 1995-04-18 U.S. Philips Corporation Method of manufacturing a dispenser cathode
DE19521724A1 (de) * 1994-06-22 1996-01-04 Siemens Ag Verfahren zur Herstellung einer Glühkathode für eine Elektronenröhre

Also Published As

Publication number Publication date
JPH08255564A (ja) 1996-10-01
HU220471B1 (hu) 2002-02-28
HU9503761D0 (en) 1996-02-28
HUT74343A (en) 1996-12-30
CN1132402A (zh) 1996-10-02
MY112496A (en) 2001-06-30
KR100338035B1 (ko) 2002-11-23
RU2104600C1 (ru) 1998-02-10
CN1052105C (zh) 2000-05-03
US5773922A (en) 1998-06-30
JP2818566B2 (ja) 1998-10-30
TW301008B (ko) 1997-03-21
RU2160942C2 (ru) 2000-12-20
EP0720195A1 (en) 1996-07-03

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