KR920009276A - Harmful Electromagnetic Wave Absorber - Google Patents

Harmful Electromagnetic Wave Absorber Download PDF

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Publication number
KR920009276A
KR920009276A KR1019900017266A KR900017266A KR920009276A KR 920009276 A KR920009276 A KR 920009276A KR 1019900017266 A KR1019900017266 A KR 1019900017266A KR 900017266 A KR900017266 A KR 900017266A KR 920009276 A KR920009276 A KR 920009276A
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KR
South Korea
Prior art keywords
electromagnetic wave
mixture
wave absorber
harmful electromagnetic
mhz
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Application number
KR1019900017266A
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Korean (ko)
Inventor
장성덕
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장성덕
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Publication date
Application filed by 장성덕 filed Critical 장성덕
Priority to KR1019900017266A priority Critical patent/KR920009276A/en
Publication of KR920009276A publication Critical patent/KR920009276A/en

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  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

내용 없음No content

Description

유해전자파 흡수체(Ferrite 전파흡수체)Harmful Electromagnetic Wave Absorber

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

제1도는 본 발명에 따라 실시되어, 제조, 가공된 흡수체 일예의 모형사시도.1 is a schematic perspective view of an example of an absorbent body manufactured and processed according to the present invention.

Claims (3)

산화철(약 30%), 산화망간(약 18%), 산화니켈(12%), 아연(약 15%), 코발트(약 5.85%), 비스므트(약 5.2%), 규소(약 2.7%), 구리(약 1.2%), 바나륨(약 1.17%), 칼슘(약 2.6%), 납(약 2.83%), 크롬(약 1.15%), 마그네슘(약 2.3%), 을 혼합한 물질을 주체로하여 구성된 페라이트에 분산제(Demo1), 조포제(TBP), 결합체(Binder)등의 혼합제를 함유한 혼합물을 약 700-900℃내에서 가소한후 이를 잘게 분쇄하고 조립(組粒)한 상태에서 밀도있게 성형하며, 60-70시간의 소결시간과 약 1100℃-1400℃온도의 상태에서 재차 소성(燒成)하여 상기 혼합물의 자기적 성능을 충분히 향상시킴과 동시에 상기 구성비의 일부조절과 소결시간 및 온도조절 등을 통해 상기 혼합물로부터 발생되는 자장이 400-500 메가헤르츠 또는 900-1000메가헤르츠 정도 내에 해당될 수 있도록 적절히 장치 함으로써 상기 대역에 해당되는 유해전자파가 흡수, 소멸 있게 함을 특징으로 하는 유해전자파 흡수체.Iron oxide (about 30%), manganese oxide (about 18%), nickel oxide (12%), zinc (about 15%), cobalt (about 5.85%), bismuth (about 5.2%), silicon (about 2.7%) It is mainly composed of a mixture of copper (about 1.2%), vanadium (about 1.17%), calcium (about 2.6%), lead (about 2.83%), chromium (about 1.15%), magnesium (about 2.3%), The mixture containing the dispersant (Demo1), foaming agent (TBP), binder and the like in a ferrite composed of a calcined in about 700-900 ℃ and then finely pulverized and granulated Molded densely and fired again at a sintering time of 60-70 hours and a temperature of about 1100 ° C.-1400 ° C. to sufficiently improve the magnetic performance of the mixture, while at the same time controlling part of the composition ratio and sintering time. And by appropriately adjusting the magnetic field generated from the mixture through temperature control to within 400-500 MHz or 900-1000 MHz. Harmful electromagnetic wave absorber, characterized in that the harmful electromagnetic wave to absorb, disappear. 제1항에 있어서, 상기 혼합물의 구성비에 따라 발생되는 자장이 900-1,000메가헤르츠정도 내에 해당되도록 장치 됨을 특징으로 하는 유해전자파 흡수체.The harmful electromagnetic wave absorber according to claim 1, wherein the magnetic field generated according to the composition ratio of the mixture falls within about 900 to 1,000 megahertz. 제1항에 있어서, 상기 조립제는 PVA(Poly Vinyl Alcohol)및 CMC(Carbory Methyl Cellulose)이고 상기 페라이트의 성형 압력은 1-3Ton/㎠내외이며 성형밀도는 2.˚-3.2g/㎤인 유해전자파 흡수체.The method of claim 1, wherein the granulating agent PVA (Poly Vinyl Alcohol) and CMC (Carbory Methyl Cellulose) and the molding pressure of the ferrite is about 1-3Ton / ㎠ and the molding density is 2.˚-3. Hazardous electromagnetic wave absorber of 2 g / cm 3. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019900017266A 1990-10-27 1990-10-27 Harmful Electromagnetic Wave Absorber KR920009276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900017266A KR920009276A (en) 1990-10-27 1990-10-27 Harmful Electromagnetic Wave Absorber

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Application Number Priority Date Filing Date Title
KR1019900017266A KR920009276A (en) 1990-10-27 1990-10-27 Harmful Electromagnetic Wave Absorber

Publications (1)

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KR920009276A true KR920009276A (en) 1992-05-28

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KR1019900017266A KR920009276A (en) 1990-10-27 1990-10-27 Harmful Electromagnetic Wave Absorber

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456717B1 (en) * 2002-03-11 2004-11-10 한국지질자원연구원 Preparation Method of Electromagnetic Wave Absorber from Spent Iron Oxide Catalysts
KR100459313B1 (en) * 1997-07-31 2005-01-17 홍성용 Electromagnetic wave absorber composition comprising fe2o3, nio, zno, cuo, water, dispersant, plasticizer and lubricant, its preparation method, paint composition for absorbing electromagnetic wave containing the composition, its preparation method, its coating method, and device using the paint composition
KR100548737B1 (en) * 2003-08-13 2006-02-02 주식회사 이엠에프 세이프티 Manufacturing method of electromagnetic wave absorptive material composed of ferrite composite material
KR20160082012A (en) 2014-12-30 2016-07-08 충북대학교 산학협력단 Thin film conduction noise absorber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459313B1 (en) * 1997-07-31 2005-01-17 홍성용 Electromagnetic wave absorber composition comprising fe2o3, nio, zno, cuo, water, dispersant, plasticizer and lubricant, its preparation method, paint composition for absorbing electromagnetic wave containing the composition, its preparation method, its coating method, and device using the paint composition
KR100456717B1 (en) * 2002-03-11 2004-11-10 한국지질자원연구원 Preparation Method of Electromagnetic Wave Absorber from Spent Iron Oxide Catalysts
KR100548737B1 (en) * 2003-08-13 2006-02-02 주식회사 이엠에프 세이프티 Manufacturing method of electromagnetic wave absorptive material composed of ferrite composite material
KR20160082012A (en) 2014-12-30 2016-07-08 충북대학교 산학협력단 Thin film conduction noise absorber

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