KR900007004A - 영구 자석의 제조방법 - Google Patents

영구 자석의 제조방법 Download PDF

Info

Publication number
KR900007004A
KR900007004A KR1019890014825A KR890014825A KR900007004A KR 900007004 A KR900007004 A KR 900007004A KR 1019890014825 A KR1019890014825 A KR 1019890014825A KR 890014825 A KR890014825 A KR 890014825A KR 900007004 A KR900007004 A KR 900007004A
Authority
KR
South Korea
Prior art keywords
minutes
sintering treatment
formed body
permanent magnet
treatment lasts
Prior art date
Application number
KR1019890014825A
Other languages
English (en)
Inventor
라인데르 플립세 아브라함
제임스 캐이 피터
로젠달 에보우드
Original Assignee
에프. 제이. 스미트
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 에프. 제이. 스미트, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 에프. 제이. 스미트
Publication of KR900007004A publication Critical patent/KR900007004A/ko

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

내용 없음

Description

영구 자석의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 소결 시간(t 분)함수로써 발명의 방법에 의해 소결된 Nd2Fe14B의 백분율에 대한 밀도(d)도시도.
제 2 도는 소결 시간(t 분)의 함수로써 발명의 방법에 의해 소결된 Nd2Fe14B의 에너지 생성물(BHmax KJm-3)도시도.
제 3 도는소결 시간(t 분)의 함수로써 발명의 방법에 의해 소결된 Nd2Fe14B의 잔류 자기(T 에서 Br)도시도.
제 4 도는 소결 시간(t 분)함수로써 발명의 방법에 의해 소결된 Nd2Fe14B의 고유 항자력(iHc KAm-1)도시도.
제 5 도는 소결 시간의 함수로써 발명의 방법에 의해 소결된 Nd2Fe14B의 평균 그레인 크리(Dum)도시도.

Claims (7)

  1. RE가 57내지 71의 원자번호를가진 희토류 금속과 이트륨으로 이루어진 그룹으로부터 선택된 적어도 한 요소이인 RE2Fe14B형의 4각형의 위상을 가진 단단한 자석 재질로 구성되고, 8 내지 30%의 RE, 2 내지 28%의 B 및 42 내지 90%의 Fe로 이루어진 합금을 형성하는 단계 . 합금을 분말로 분쇄하는 단계, 자기장 내에 있든 없든간에 분말을 형성된몸체내로 압축하는 단계 및, 형성된 몸체가 자석화된 후에 900 내지 1200℃의 온도 범위로 형성된 몸체를 소결하는 단계로 이루어진 영구 자석 제조 방법에 있어서, 형성된 몸체는 단일 소결 처리의 유도 가열로 적어도 95%의 가상적인 최대 밀도로 소결되는 것을 특징으로 하는 영구자석의 제조 방법.
  2. 제 1 항에 있어서, 요소 Nd 및 Dy는 회토류 금속(RE)으로 이용되는 것을 특징으로 하는 영구자석의 제조 방법
  3. 제 1 또는 2항에 있어서, 소결 처리는 최대로 10분 동안 지속하는 것을 특징으로 하는 영구자석의 제조 방법.
  4. 제 1 또는 2항에 있어서, 소결 처리는 최대로 5분 동안 지속하는 것을 특징으로 하는 영구자석의 제조방법.
  5. 제 1,2 또는 3항에 있어서, 소결 처리는 최소로 2분 동안 지속하는 것을 특징으로 하는 영구자석의 제조 방법.
  6. 제 1,2,3 또는 4항에 있어서, 소결 처리는 최소 0.5와 최대 5분동안 지속하는 것을 특징으로 하는 영구 자석의 제조 방법.
  7. 전술한 어느 한 항에 있어서, 소결할 경우에 평균 워밍-업율이 200k/min을 초과하는 것을 특징으로 하는 영구자석의 제조 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890014825A 1988-10-17 1989-10-16 영구 자석의 제조방법 KR900007004A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8802543 1988-10-17
NL8802543 1988-10-17

Publications (1)

Publication Number Publication Date
KR900007004A true KR900007004A (ko) 1990-05-09

Family

ID=19853066

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890014825A KR900007004A (ko) 1988-10-17 1989-10-16 영구 자석의 제조방법

Country Status (7)

Country Link
US (1) US4996023A (ko)
EP (1) EP0365079B1 (ko)
JP (1) JP2848533B2 (ko)
KR (1) KR900007004A (ko)
CN (1) CN1043034A (ko)
AT (1) ATE106599T1 (ko)
DE (1) DE68915680T2 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2780429B2 (ja) * 1990-03-30 1998-07-30 松下電器産業株式会社 希土類―鉄系磁石の製造方法
GB9022033D0 (en) * 1990-10-10 1990-11-21 Lee Victor C A method of making a material with permanent magnetic properties
JP3549382B2 (ja) * 1997-12-22 2004-08-04 信越化学工業株式会社 希土類元素・鉄・ボロン系永久磁石およびその製造方法
EP1011113B1 (en) 1998-12-11 2008-05-28 Shin-Etsu Chemical Co., Ltd. Method for the preparation of a rare earth permanent magnet
JP4415681B2 (ja) * 2004-01-21 2010-02-17 Tdk株式会社 希土類焼結磁石及びその製造方法
CN102456478A (zh) * 2010-10-22 2012-05-16 北京北方微电子基地设备工艺研究中心有限责任公司 磁铁及其加工方法和磁控溅射源
CN109881113B (zh) * 2019-02-24 2020-05-19 东阳市宏丰磁业有限公司 一种复合永磁材料及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3587977T2 (de) * 1984-02-28 1995-05-18 Sumitomo Spec Metals Dauermagnete.
US4765848A (en) * 1984-12-31 1988-08-23 Kaneo Mohri Permanent magnent and method for producing same
JPS62165305A (ja) * 1986-01-16 1987-07-21 Hitachi Metals Ltd 熱安定性良好な永久磁石およびその製造方法
DE3779481T2 (de) * 1986-04-15 1992-12-24 Tdk Corp Dauermagnet und verfahren zu seiner herstellung.
EP0261579B1 (en) * 1986-09-16 1993-01-07 Tokin Corporation A method for producing a rare earth metal-iron-boron permanent magnet by use of a rapidly-quenched alloy powder
US4859410A (en) * 1988-03-24 1989-08-22 General Motors Corporation Die-upset manufacture to produce high volume fractions of RE-Fe-B type magnetically aligned material
US4867809A (en) * 1988-04-28 1989-09-19 General Motors Corporation Method for making flakes of RE-Fe-B type magnetically aligned material
US4881985A (en) * 1988-08-05 1989-11-21 General Motors Corporation Method for producing anisotropic RE-FE-B type magnetically aligned material

Also Published As

Publication number Publication date
JPH02156038A (ja) 1990-06-15
ATE106599T1 (de) 1994-06-15
EP0365079B1 (en) 1994-06-01
US4996023A (en) 1991-02-26
JP2848533B2 (ja) 1999-01-20
EP0365079A1 (en) 1990-04-25
DE68915680D1 (de) 1994-07-07
CN1043034A (zh) 1990-06-13
DE68915680T2 (de) 1994-12-15

Similar Documents

Publication Publication Date Title
US3684593A (en) Heat-aged sintered cobalt-rare earth intermetallic product and process
ES8502738A1 (es) Un metodo de fabricar una composicion de aleacion fuertemente magnetica.
US4541877A (en) Method of producing high performance permanent magnets
US3901741A (en) Permanent magnets of cobalt, samarium, gadolinium alloy
KR880002207A (ko) 희토류금속-천이금속-붕소영구자석 제조를 위한 고에너지 볼-밀링(ball-milling) 방법
KR900007004A (ko) 영구 자석의 제조방법
EP0029071A1 (en) Process for producing permanent magnet alloy
EP0325403A3 (en) Resin bonded magnets
AU608309B2 (en) Multiphase permanent magnet of the fe-b-mm type
US3891476A (en) Method of magnetizing a body of M{HD 5{B R at high temperatures
GB1307296A (en) Permanent magnets
US4776902A (en) Method for making rare earth-containing magnets
GB1573190A (en) Method of manufacturing plastic bonded permanent magnets
EP0196123B1 (en) Permanent magnets comprising an intermetallic compound of the rare earth transition metal boron type
JP2598558B2 (ja) 永久磁石
JPS56150153A (en) Permanent magnet alloy
JPH0252412B2 (ko)
JPS56112448A (en) Manufacture of rare earth element magnet
JPS62158854A (ja) 永久磁石材料
JPS6077952A (ja) プラセオジム及びネオジムを含むサマリウム−コバルト磁性合金
Tokunaga et al. Magnetic Properties of Pr (Fe--B--Si) z Permanent Magnets.(Retroactive Coverage)
JPS62136553A (ja) 永久磁石材料
JPS6442502A (en) Production of permanent magnet
JPS62158852A (ja) 永久磁石材料
JPS64706A (en) Manufacture of rare-earth magnet

Legal Events

Date Code Title Description
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid