KR930012157A - 희토류자석합금분말의 제조법 - Google Patents

희토류자석합금분말의 제조법 Download PDF

Info

Publication number
KR930012157A
KR930012157A KR1019920023863A KR920023863A KR930012157A KR 930012157 A KR930012157 A KR 930012157A KR 1019920023863 A KR1019920023863 A KR 1019920023863A KR 920023863 A KR920023863 A KR 920023863A KR 930012157 A KR930012157 A KR 930012157A
Authority
KR
South Korea
Prior art keywords
alloy
rare earth
vacuum tube
manufacturing
alloy powder
Prior art date
Application number
KR1019920023863A
Other languages
English (en)
Inventor
료오지 나카야마
타쿠오 타케시타
요시나리 이시이
오가와타모쯔
Original Assignee
후지무라 마사야
미쯔비시마테리알 카부시키가이샤
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 후지무라 마사야, 미쯔비시마테리알 카부시키가이샤 filed Critical 후지무라 마사야
Publication of KR930012157A publication Critical patent/KR930012157A/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets 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
    • H01F1/04—Magnets 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys 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
    • H01F1/0573—Alloys 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 obtained by reduction or by hydrogen decrepitation or embrittlement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/023—Hydrogen absorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

본 발명은 수소흡장처리후에 탈수소처리를 실시하여 안정하고 우수한 자기특성을 나타내는 회토류자석합금분말의 제조법을 개시한다.
본 발명의 회토류자석합금분말의 제조법에서는, 균질화처리한 회토류자석합금재를 750 내지 950℃의 온도에서 수소흡장처리한 후, 750 내지 950℃의 온도범위에서 탈수소처리해서, 냉각한 후 분쇄한다.
이와 같은 수소흡장처리 및 탈수소처리는 진공관형상로 내에서 행하여지며, 탈수소처리공정에서 합금재료는 탈수소처리시에 발생하는 흡열반응에 의한 온도저하가 최대 -50℃이내로 유지되도록 된다.

Description

회토류자석합금분말의 제조법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1도는 본 발명에서 사용하는 진공관형상로를 나타내는 단면개략도.

Claims (2)

  1. (a)이트륨(Y)을 함유하는 회토류원소(R)와, 철(Fe)혹은 철의 일부를 코발트(Co)로 치환한 성분(T)와, 붕소(B)를 주성분으로 하는 R-T-B계 합금으로 표시되는 회토류합금재를 준비하는 단계와, (b)이어서, 전기한 합금재를 600℃ 내지 1200℃의 온도범위로 유지하면서, 균질화 처리하여 균질화처리된 합금을 형성하는 단계와, (c)진공관형상로를 준비하는 단계와, (d)전기한 균질화처리된 합금을 진공관형상로 내에 장입하는 단계와,(e)이어서 전기한 진공관형상로를 실온으로 부터 500℃까지 승온하여 진공관형상로 내의 균질화처리된 수소를 흡장시킨 후, 진공관형상로 750℃ 내지 950℃의 온도범위로 유지하여서 수소 흡장합금을 형성하는 단계와, (f)그후, 진공관형성로내에 장입되어 있는 수소흡장합금을 750℃ 내지 950℃의 온도범위로 유지하고, 탈수소처리 도중에 발생하는 흡열반응에 의한 합금이 온도저하를 -50℃이내로 억제하면서 전기한 수소흡장합금을 탈수소처리하여 탈수소처리된 합금을 형성하는 단계와, (g)전기한 탈수소처리한 합금을 냉각, 분쇄하여서, 미세한 강자성화합물의 재결정집합조직을 보유하는 R-T-B계 희토류자석 합금분말을 제조하는 단계로 구성되는 것을 특징으로 하는 강자성화합물을 함유하는 희토류자석합금분말의 제조법.
  2. 제1항에 있어서, 전기한 단계(f)중에 발생하는 흡열반응에 의한 합금의 온도저하를 최대 -200℃로 억제하는 것을 특징으로 하는 회토류자석합금분말의 제조법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920023863A 1991-12-10 1992-12-10 희토류자석합금분말의 제조법 KR930012157A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP91-349934 1991-12-10
JP3349934A JPH05163510A (ja) 1991-12-10 1991-12-10 希土類磁石合金粉末の製造法

Publications (1)

Publication Number Publication Date
KR930012157A true KR930012157A (ko) 1993-07-20

Family

ID=18407098

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920023863A KR930012157A (ko) 1991-12-10 1992-12-10 희토류자석합금분말의 제조법

Country Status (6)

Country Link
US (1) US5417773A (ko)
EP (1) EP0546799B1 (ko)
JP (1) JPH05163510A (ko)
KR (1) KR930012157A (ko)
CN (1) CN1033623C (ko)
DE (1) DE69210563T2 (ko)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994015345A1 (en) * 1992-12-28 1994-07-07 Aichi Steel Works, Ltd. Rare earth magnetic powder, method of its manufacture, and resin-bonded magnet
JPH07106110A (ja) * 1993-10-06 1995-04-21 Yasunori Takahashi ボンド磁石製造用粉末組成物、磁気異方性永久磁石及び磁気異方性永久磁石の製造法
GB2316541B (en) * 1994-06-09 1998-11-18 Chipscale Inc Resistor fabrication
CN1059367C (zh) * 1995-03-20 2000-12-13 中国核动力研究设计院 氢化法生产锆和锆－2合金粉末的制备工艺
GB2310432B (en) * 1996-02-23 1998-05-27 Aichi Steel Works Ltd Production method production apparatus and heat treatment apparatus for anisotropic magnet powder
US5851312A (en) * 1996-02-26 1998-12-22 Aichi Steel Works, Ltd. Production method, production apparatus and heat treatment apparatus for anisotropic magnet powder
JP2881409B2 (ja) * 1996-10-28 1999-04-12 愛知製鋼株式会社 異方性磁石粉末の製造方法
CN1060700C (zh) * 1996-11-26 2001-01-17 宁波科宁达工业有限公司 低温破碎稀土永磁合金锭的方法
JP3120172B2 (ja) * 1997-12-22 2000-12-25 愛知製鋼株式会社 希土類系磁石粉末の製造装置
US6403024B1 (en) * 1999-02-19 2002-06-11 Sumitomo Special Metals Co., Ltd. Hydrogen pulverizer for rare-earth alloy magnetic material powder using the pulverizer, and method for producing magnet using the pulverizer
US6444052B1 (en) 1999-10-13 2002-09-03 Aichi Steel Corporation Production method of anisotropic rare earth magnet powder
US6955729B2 (en) * 2002-04-09 2005-10-18 Aichi Steel Corporation Alloy for bonded magnets, isotropic magnet powder and anisotropic magnet powder and their production method, and bonded magnet
WO2004064085A1 (ja) * 2003-01-16 2004-07-29 Aichi Steel Corporation 異方性磁石粉末の製造方法
CN102470442B (zh) 2009-07-31 2014-01-01 日立金属株式会社 稀土类磁铁用原料合金的氢粉碎粉的回收方法及回收装置
CN102189264A (zh) * 2010-03-18 2011-09-21 Tdk株式会社 稀土合金粉末的制造方法、稀土合金粉末和永磁体
CN102294471A (zh) * 2010-06-24 2011-12-28 曹水秀 Nd-Fe-B永磁体的制造方法
KR101269408B1 (ko) * 2012-10-10 2013-05-30 한국기계연구원 수소방출및재결합단계를 포함하는 희토류-철-보론계 희토류자성분말의 제조방법
KR101382234B1 (ko) * 2013-03-15 2014-04-10 한국기계연구원 에이치디디알공법 중 수소방출및재결합단계 제어방법 및 수소방출및재결합단계를 실시하여 제조된 희토류-철-보론계 희토류자성분말
TW201517075A (zh) 2013-06-17 2015-05-01 Urban Mining Technology Company 再生磁鐵以產生具有改善或恢復磁性性能的 nd-fe-b 磁鐵
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1012477B (zh) * 1987-08-19 1991-05-01 三菱金属株式会社 稀土-铁-硼磁体粉末及其制备方法
EP0411571B1 (en) * 1989-07-31 1994-06-01 Mitsubishi Materials Corporation Rare earth permanent magnet powder, method for producing same and bonded magnet

Also Published As

Publication number Publication date
US5417773A (en) 1995-05-23
JPH05163510A (ja) 1993-06-29
EP0546799B1 (en) 1996-05-08
DE69210563T2 (de) 1996-11-28
DE69210563D1 (de) 1996-06-13
CN1033623C (zh) 1996-12-25
CN1073384A (zh) 1993-06-23
EP0546799A1 (en) 1993-06-16

Similar Documents

Publication Publication Date Title
KR930012157A (ko) 희토류자석합금분말의 제조법
Strnat et al. Rare earth-cobalt permanent magnets
US4663066A (en) Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydrides, the process for their manufacture of the corresponding pulverulent dehydrogenated products
JPS609852A (ja) 高エネルギ−積の稀土類−鉄磁石合金
JP2018157197A (ja) 高熱安定性の希土類永久磁石材料、その製造方法及びそれを含む磁石
JPS5964733A (ja) 永久磁石
US3997371A (en) Permanent magnet
JPS63100155A (ja) 鉄、ホウ素および希土類金属から成る永久磁石用磁性材料およびその製造方法
Chin et al. New ductile Cr‐Co‐Fe permanent magnet alloys for telephone receiver applications
US4695333A (en) Iron-chromium-base spinodal decomposition-type magnetic (hard or semi-hard) alloy
Jin et al. Low-cobalt Cr-Co-Fe magnet alloys obtained by slow cooling under magnetic field
JPS62136551A (ja) 永久磁石材料
US4721538A (en) Permanent magnet alloy
JPS59132105A (ja) 永久磁石用合金
Gould Permanent magnets
JPS59211559A (ja) 永久磁石材料
JPS61208806A (ja) 表面処理方法および永久磁石
JPS63241141A (ja) 強磁性合金
JPS63241142A (ja) 強磁性合金
JPH0841502A (ja) 希土類永久磁石用合金粉末の製造法
KR950004293A (ko) 알니코계 영구자석의 제조방법
US3144325A (en) Magnetic compositions containing iron, rhodium, and at least one member of the lanthanide series
JPS59163803A (ja) 永久磁石用合金
Ray et al. Magnetic and metallurgical properties of Sm (Co, Fe, Cu, Zr) z alloys near z= 8.5
Kwon et al. A study of Pr Fe B Cu permanent magnetic alloys

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