KR910020753A - Manufacturing method of rare earth permanent magnet - Google Patents

Manufacturing method of rare earth permanent magnet Download PDF

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Publication number
KR910020753A
KR910020753A KR1019900008016A KR900008016A KR910020753A KR 910020753 A KR910020753 A KR 910020753A KR 1019900008016 A KR1019900008016 A KR 1019900008016A KR 900008016 A KR900008016 A KR 900008016A KR 910020753 A KR910020753 A KR 910020753A
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KR
South Korea
Prior art keywords
permanent magnet
rare earth
earth permanent
manufacturing
heat treatment
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Application number
KR1019900008016A
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Korean (ko)
Inventor
이재욱
김학주
김인응
Original Assignee
서주인
삼성전기 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.)
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Application filed by 서주인, 삼성전기 주식회사 filed Critical 서주인
Priority to KR1019900008016A priority Critical patent/KR910020753A/en
Publication of KR910020753A publication Critical patent/KR910020753A/en

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Abstract

내용 없음No content

Description

희토류 영구 자석의 제조방법Manufacturing method of rare earth permanent magnet

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

제1도는 종래의 희토류 영구 자석의 제조 공정도, 제2도는 본 발명에서의 희토류 영구 자석의 제조공정도, 제3도는 희토류 영구 자석 중심의 거리에 따른 포화 자속 밀도의 변화를 나타낸 그래프.1 is a manufacturing process diagram of a conventional rare earth permanent magnet, FIG. 2 is a manufacturing process diagram of a rare earth permanent magnet in the present invention, and FIG. 3 is a graph showing a change in saturation magnetic flux density according to the distance of the center of the rare earth permanent magnet.

Claims (3)

분쇄, 자상성형, 소결, 열처리, 가공, 표면처리 공정으로 영구 자석 합금을 제조하는데 있어서, 상기 소결공정후 센더스트로 진공증착후, 열처리와 동시에 표면처리 하는 것을 특징으로 하는 희토류 영구 자석의 제조방법.A method for producing a rare earth permanent magnet, wherein the permanent magnet alloy is manufactured by grinding, magnetoforming, sintering, heat treatment, processing, and surface treatment, after vacuum deposition using a sender after the sintering process, and simultaneously with heat treatment. 제1항에 있어서, 상기 증착공정시 Fe-si-Al 계 센더스트를 두께 약 7000Å 이하로 증착하는 것을 특징을 하는 희토류 영구 자석의 제조방법.The method of claim 1, wherein the Fe-si-Al-based sendust is deposited to a thickness of about 7000 Pa or less during the deposition process. 제1항에 있어서, 상기 열처리 공정이 600∼700 에서, 산소농도 10-2∼10-4toor를 30분∼1시간동안 행해져 진공증착막위에 산화피막을 형성시키는 것을 특징으로 하는 희토류 영구 자석의 제조방법.The rare earth permanent magnet according to claim 1, wherein the heat treatment step is performed at 600 to 700 to carry out an oxygen concentration of 10 -2 to 10 -4 tooor for 30 minutes to 1 hour to form an oxide film on the vacuum deposition film. Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900008016A 1990-05-31 1990-05-31 Manufacturing method of rare earth permanent magnet KR910020753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900008016A KR910020753A (en) 1990-05-31 1990-05-31 Manufacturing method of rare earth permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900008016A KR910020753A (en) 1990-05-31 1990-05-31 Manufacturing method of rare earth permanent magnet

Publications (1)

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KR910020753A true KR910020753A (en) 1991-12-20

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KR1019900008016A KR910020753A (en) 1990-05-31 1990-05-31 Manufacturing method of rare earth permanent magnet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100354371B1 (en) * 1998-04-16 2002-09-28 스미토모 도큐슈 긴조쿠 가부시키가이샤 Corrosion-resisting permanent magnet and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100354371B1 (en) * 1998-04-16 2002-09-28 스미토모 도큐슈 긴조쿠 가부시키가이샤 Corrosion-resisting permanent magnet and method for producing the same

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