KR920007026A - Manufacturing method of impregnated cathode - Google Patents

Manufacturing method of impregnated cathode Download PDF

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Publication number
KR920007026A
KR920007026A KR1019900014468A KR900014468A KR920007026A KR 920007026 A KR920007026 A KR 920007026A KR 1019900014468 A KR1019900014468 A KR 1019900014468A KR 900014468 A KR900014468 A KR 900014468A KR 920007026 A KR920007026 A KR 920007026A
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KR
South Korea
Prior art keywords
sintered body
sintering
temperature
porous heat
resistant sintered
Prior art date
Application number
KR1019900014468A
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Korean (ko)
Inventor
이경상
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이헌조
주식회사 금성사
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Priority to KR1019900014468A priority Critical patent/KR920007026A/en
Publication of KR920007026A publication Critical patent/KR920007026A/en

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  • Solid Thermionic Cathode (AREA)

Abstract

내용 없음No content

Description

함침형 음극의 제조방법Manufacturing method of impregnated cathode

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 통상적인 함침형 음극구조체를 보인 종단면도,1 is a longitudinal cross-sectional view showing a conventional impregnated cathode structure,

제2도의 (가) 및 (나)는 통상적인 함침형 음극의 제조 방법을 순차적으로 보인 공정도.(A) and (B) of FIG. 2 are process drawings sequentially showing a conventional method for producing an impregnated cathode.

Claims (3)

텅그스텐(w)등 내열성 금속분말을 프레스 성형하는 공정과, 고온 분위기중에서 예비소결 및 소결공정에 의하여 다공정 내열성 소결체(3′)를 제조하고, 각종 형상의 다공질 내열성 소결체의 공극부에 전자방사물질을 고온 분위기중에서 함침시키는 전자방사물질 함침공정에 의하여 음극기체(3)를 제조하는 함침형 음극 제조방법에 있어서, 다공질 내열성(3′)를 제조하기 위한 상기의 고온 분위기와, 다공질 내열성 소결체에 전자방사물질을 함침시키는 전자방사물질 함침공정의 고온 분위기중 적어도 하나가 일정온도까지 고온 가열로에 의하여 가열되고, 그 이상의 예비소결 온도 및 소결온도 또는 전자방사물질 함침온도까지는 다공질 내열성 소결체에 전원(E)(E′)을 연결하여 다공질 내열성 소결체의 발열을 이용함을 특징으로 하는 함침형 음극의 제조방법.A multi-step heat-resistant sintered body 3 'is produced by press molding a heat-resistant metal powder such as tungsten (w) and by pre-sintering and sintering in a high-temperature atmosphere, and electrons are radiated to the air gaps of the porous heat-resistant sintered body of various shapes. In the impregnation type negative electrode manufacturing method for producing a negative electrode gas (3) by an electron-spinning material impregnation step of impregnating the material in a high temperature atmosphere, the above-mentioned high temperature atmosphere for producing a porous heat resistance (3 ') and a porous heat resistant sintered body At least one of the high-temperature atmosphere of the electrospinning material impregnation process for impregnating the electrospinning material is heated by a high temperature furnace to a predetermined temperature, and power is supplied to the porous heat-resistant sintered body until the preliminary sintering temperature and the sintering temperature or the electrospinning material impregnation temperature ( E) (E ') of the impregnated cathode characterized in that the heat generation of the porous heat-resistant sintered body is used Article methods. 제1항에 있어서, 상기 다공질 내열성 소결체(3′)의 에비소결 및 소결공정은 동일 고온가열로 내에서 다공질 내열성 소결체(3′)에 전원(E)(E′)의 가변에 의하여 다공질 내열성 소결체(3′)의 에비소결 온도 분위기 및 소결온도 분위기를 연속적으로 유지시킴을 특징으로 하는 함침형 음극의 제조방법.The sintering and sintering process of the porous heat-resistant sintered body 3 'according to claim 1, wherein the porous heat-resistant sintered body by varying the power source E (E') to the porous heat-resistant sintered body 3 'in the same high temperature heating furnace. A method for producing an impregnated cathode, characterized by continuously maintaining the sintering temperature atmosphere and the sintering temperature atmosphere of (3 '). 제1항에 있어서, 상기 고온 가열한 자체 발열에 의하여 1200℃이하의 고온분위기를 유지함을 특징으로 하는 함침형 음극의 제조방법.The method of claim 1, wherein the high-temperature heating self-heating maintains a high-temperature atmosphere of 1200 ° C or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900014468A 1990-09-13 1990-09-13 Manufacturing method of impregnated cathode KR920007026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900014468A KR920007026A (en) 1990-09-13 1990-09-13 Manufacturing method of impregnated cathode

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Application Number Priority Date Filing Date Title
KR1019900014468A KR920007026A (en) 1990-09-13 1990-09-13 Manufacturing method of impregnated cathode

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KR920007026A true KR920007026A (en) 1992-04-28

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KR1019900014468A KR920007026A (en) 1990-09-13 1990-09-13 Manufacturing method of impregnated cathode

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11731602B2 (en) 2019-03-29 2023-08-22 Hl Mando Corporation Check valve for brake system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11731602B2 (en) 2019-03-29 2023-08-22 Hl Mando Corporation Check valve for brake system

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