KR890002949A - Dispenser cathode manufacturing method - Google Patents

Dispenser cathode manufacturing method Download PDF

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Publication number
KR890002949A
KR890002949A KR1019880008245A KR880008245A KR890002949A KR 890002949 A KR890002949 A KR 890002949A KR 1019880008245 A KR1019880008245 A KR 1019880008245A KR 880008245 A KR880008245 A KR 880008245A KR 890002949 A KR890002949 A KR 890002949A
Authority
KR
South Korea
Prior art keywords
cathode
scandium
hydride
dispenser cathode
sintering temperature
Prior art date
Application number
KR1019880008245A
Other languages
Korean (ko)
Inventor
반 에스돈크 요하네스
하스케르 얀
요하네스 반 리쓰 요세프
Original Assignee
이반 밀러 레르너
엔.브이.필립스 글로아이람펜파브리켄
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 이반 밀러 레르너, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 이반 밀러 레르너
Publication of KR890002949A publication Critical patent/KR890002949A/en

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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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)

Abstract

내용 없음No content

Description

디스펜서 캐소드 제조방법Dispenser cathode manufacturing method

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

제 1 도는 본 발명에 따른 캐소드의 종단면도. 제 2 도는 본 발명에 따른 원동형 캐소드의 정면도.1 is a longitudinal sectional view of a cathode according to the invention; 2 is a front view of a cylindrical cathode according to the invention.

Claims (7)

고온에서 용융되는 금속을 포함하는 다기공 캐소드 바디의 방출면에 바륨 분포를 위해 바륨 화합물을 포함하는 디스펜서 캐소드를 제조하는 방법에서, 캐소드 바디는 스칸디움 또는 스칸디움 수소화물로 혼합되는 다량의 금속 파우더로부터 압축된 후상기 바디는 신터되고 상기 캐소드에는 에미터 재료가 제공되는 것을 특징으로 하는 디스펜서 캐소드 제조방법.In a method for producing a dispenser cathode comprising a barium compound for barium distribution on the emitting surface of a multi-porous cathode body comprising a metal that melts at high temperatures, the cathode body is mixed with scandium or scandium hydride And the body is sintered after being compressed from the cathode and the cathode is provided with an emitter material. 제 1 항에 있어서, 금속 파우더와 스칸디움 또는 스칸디움 수소화물의 혼합물에 있는 스칸디움 또는 스칸디움 수소화물의 양은 대략 0.3과 0.7중량% 사이에 있는 것을 특징으로 하는 디스펜서 캐소드 제조방법.The method of claim 1 wherein the amount of scandium or scandium hydride in the mixture of metal powder and scandium or scandium hydride is between about 0.3 and 0.7% by weight. 제 1 또는 2항에 있어서, 신터링 온도는 스칸디움의 용융점 보다 낮은 것을 특징으로 하는 디스펜서 캐소드 제조방법.The method of claim 1 or 2, wherein the sintering temperature is lower than the melting point of the scandium. 제 3 항에 있어서, 신터링 온도는 1430oC와 1500oC 사이인 것을 특징으로 하는 디스펜서 캐소드 제조방법.4. The method of claim 3, wherein the sintering temperature is between 1430 o C and 1500 o C. 제 1,2,3 또는 4항에 있어서, 캐소드 바디는 그것에 에미터 재료가 채워진후에 최종적으로 형성되는 것을 특징으로 하는 디스펜서 캐소드 제조방법.5. The method of claim 1,2,3 or 4, wherein the cathode body is finally formed after the emitter material is filled in it. 제 1 내지 5항중 임의 한 항에 청구된 바와 같은 방법에 의해 제조된 디스펜스 캐소드.Dispensing cathode prepared by the method as claimed in claim 1. 제 6 항에 청구된 바와 같은 캐소드를 갖추고 있는 전자 튜브.Electron tube with a cathode as claimed in claim 6. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880008245A 1987-07-06 1988-07-04 Dispenser cathode manufacturing method KR890002949A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8701583 1987-07-06
NL8701583A NL8701583A (en) 1987-07-06 1987-07-06 SCANDAT CATHOD.

Publications (1)

Publication Number Publication Date
KR890002949A true KR890002949A (en) 1989-04-12

Family

ID=19850259

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880008245A KR890002949A (en) 1987-07-06 1988-07-04 Dispenser cathode manufacturing method

Country Status (5)

Country Link
EP (1) EP0298558B1 (en)
JP (1) JP2685232B2 (en)
KR (1) KR890002949A (en)
DE (1) DE3889696T2 (en)
NL (1) NL8701583A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8902793A (en) * 1989-11-13 1991-06-03 Philips Nv SCANDAT CATHOD.
BE1007676A3 (en) * 1993-10-28 1995-09-12 Philips Electronics Nv Method for manufacturing a dispenser cathode
ATE167755T1 (en) * 1993-10-28 1998-07-15 Philips Electronics Nv STORAGE CATHODE AND PRODUCTION PROCESS
BE1007677A3 (en) * 1993-10-28 1995-09-12 Philips Electronics Nv Method for manufacturing a dispenser cathode
US5407633A (en) * 1994-03-15 1995-04-18 U.S. Philips Corporation Method of manufacturing a dispenser cathode
US6281626B1 (en) * 1998-03-24 2001-08-28 Casio Computer Co., Ltd. Cold emission electrode method of manufacturing the same and display device using the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165880C (en) * 1975-02-21 1981-05-15 Philips Nv DELIVERY CATHOD.
JPS58154131A (en) * 1982-03-10 1983-09-13 Hitachi Ltd Impregnation type cathode
NL8201371A (en) * 1982-04-01 1983-11-01 Philips Nv METHODS FOR MANUFACTURING A SUPPLY CATHOD AND SUPPLY CATHOD MANUFACTURED BY THESE METHODS
NL8403032A (en) * 1984-10-05 1986-05-01 Philips Nv METHOD FOR MANUFACTURING A SCANDAL FOLLOW-UP CATHOD, FOLLOW-UP CATHOD MADE WITH THIS METHOD
NL8403031A (en) * 1984-10-05 1986-05-01 Philips Nv METHOD FOR MANUFACTURING A SCANDAL FOLLOW-UP CATHOD AND SCANDAL FOLLOW-UP CATHOD Manufactured By This Method
JPS63254636A (en) * 1987-04-10 1988-10-21 Hitachi Ltd Impregnated cathode

Also Published As

Publication number Publication date
EP0298558B1 (en) 1994-05-25
JP2685232B2 (en) 1997-12-03
DE3889696T2 (en) 1994-12-08
JPH01163941A (en) 1989-06-28
DE3889696D1 (en) 1994-06-30
EP0298558A1 (en) 1989-01-11
NL8701583A (en) 1989-02-01

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