KR20010107320A - 네오디뮴-철-붕소계 초미립 합금분말 제조방법 - Google Patents
네오디뮴-철-붕소계 초미립 합금분말 제조방법 Download PDFInfo
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- KR20010107320A KR20010107320A KR1020000028742A KR20000028742A KR20010107320A KR 20010107320 A KR20010107320 A KR 20010107320A KR 1020000028742 A KR1020000028742 A KR 1020000028742A KR 20000028742 A KR20000028742 A KR 20000028742A KR 20010107320 A KR20010107320 A KR 20010107320A
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- 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
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/18—Reducing step-by-step
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- 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
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- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
Claims (3)
- 50nm이하의 Nd2Fe14B 결정립으로 구성되며 분말의 크기가 1㎛이하인 Nd2Fe14B 상의 분말을 제조하는 방법을 구성함에 있어,Nd 금속염, Fe 금속염 및 보론산으로 구성된 혼합수용액을 제조하여 스프레이드라잉시켜 Nd, Fe, B가 균일하게 분산된 시초분말을 제조하는 단계와,상기 시초분말을 대기중에서 750∼1000℃온도에서 탈염처리하여 Nd-Fe-B 복합산화물 분말을 제조하는 단계와,상기 복합산화물 분말을 600∼1000℃ 온도에서 수소환원처리하여 Nd 산화물과 α-Fe로 이루어진 복합분말을 제조하는 단계와,상기 복합분말을 밀링하여 미립화하는 단계와,상기 미립화된 분말에 산화물을 환원하기 위해 CaO를 첨가혼합하여 성형한 후 1000℃에서 아르곤분위기로 환원처리하여 Nd염의 환원 및 Nd2Fe14B상/CaO상의 혼합분말을 제조하는 단계와,상기 혼합분말을 물로 세척하여 CaO를 제거하고 건조한 후 50nm이하의 Nd2Fe14B 결정립으로 구성되며 분말의 크기가 1㎛이하인 Nd2Fe14B 상의 분말을 제조하는 단계로 구성된 것을 특징으로 하는 Nd-Fe-B계 초미립분말 제조하는 방법.
- 제1항에 있어서, 혼합수용액을 스프레이드라잉시키는 방법은 혼합수용액을 5∼15ml/min 속도로 고속회전(8,000∼15,000rpm)되는 노즐을 이용하여 150∼250℃를 유지하는 용기에 스프레이하는 것을 특징으로 하는 Nd-Fe-B계 초미립분말 제조방법.
- 제1항에 있어서, CaO 첨가량은 Nd 산화물을 환원하기 위해 필요한 화학양론의 1.5배인 것을 특징으로 하는 Nd-Fe-B계 초미립분말 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0028742A KR100374706B1 (ko) | 2000-05-26 | 2000-05-26 | 네오디뮴-철-붕소계 초미립 합금분말 제조방법 |
US09/863,640 US6676730B2 (en) | 2000-05-26 | 2001-05-23 | Method of producing Nd-Fe-B based nanophase power |
JP2001155781A JP2002020808A (ja) | 2000-05-26 | 2001-05-24 | Nd−Fe−B系超微粒粉末の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0028742A KR100374706B1 (ko) | 2000-05-26 | 2000-05-26 | 네오디뮴-철-붕소계 초미립 합금분말 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010107320A true KR20010107320A (ko) | 2001-12-07 |
KR100374706B1 KR100374706B1 (ko) | 2003-03-04 |
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KR10-2000-0028742A KR100374706B1 (ko) | 2000-05-26 | 2000-05-26 | 네오디뮴-철-붕소계 초미립 합금분말 제조방법 |
Country Status (3)
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US (1) | US6676730B2 (ko) |
JP (1) | JP2002020808A (ko) |
KR (1) | KR100374706B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103317146A (zh) * | 2013-07-09 | 2013-09-25 | 中国石油大学(华东) | 水热法制备钕铁硼磁粉的方法 |
RU2541259C1 (ru) * | 2013-11-07 | 2015-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский национальный исследовательский технологический университет" (ФГБОУ ВПО "КНИТУ") | Способ получения порошка, содержащего железо и алюминий, из водных растворов |
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JP4518935B2 (ja) * | 2004-12-21 | 2010-08-04 | 株式会社安川電機 | 永久磁石及びその製造方法 |
CN102139369B (zh) * | 2010-12-29 | 2015-07-08 | 东莞市高能磁电技术有限公司 | 超细钕铁硼粉体混合物的制备方法及混合物 |
JP5936686B2 (ja) * | 2011-06-21 | 2016-06-22 | ルレデラ・フンダシオン・パラ・エル・デサロリョ・テクノロヒコ・イ・ソシアル | 混合酸化物および永久磁性粒子の製造方法 |
KR101354138B1 (ko) * | 2013-07-30 | 2014-01-27 | 한국기계연구원 | 네오디뮴-철-붕소계 합금 분말의 제조방법 |
IN2013CH04500A (ko) | 2013-10-04 | 2015-04-10 | Kennametal India Ltd | |
CN103537705B (zh) * | 2013-10-29 | 2015-06-24 | 宁波韵升股份有限公司 | 一种烧结钕铁硼永磁材料氢碎工艺 |
CN103990808B (zh) * | 2014-05-04 | 2016-12-07 | 常州大学 | 一种制备钕铁硼永磁纳米粒子的方法 |
CN105081338B (zh) * | 2014-05-08 | 2017-05-10 | 中国科学院宁波材料技术与工程研究所 | 一种单分散钕铁硼纳米粒子的制备方法 |
CN105855012B (zh) * | 2016-04-01 | 2019-10-25 | 厦门钨业股份有限公司 | 一种气流磨粉碎机和一种气流粉碎的方法 |
KR102443898B1 (ko) * | 2018-11-12 | 2022-09-15 | 주식회사 엘지에너지솔루션 | 과충전 방지가 가능한 구조를 갖는 배터리 팩 충전 시스템 및 이를 포함하는 자동차 |
CN109967757B (zh) * | 2018-12-04 | 2022-04-29 | 沈阳工业大学 | 一种利用化学法结合脉冲磁场制备Nd-Fe-B纳米粉末的方法 |
CN111687124B (zh) * | 2020-06-20 | 2021-08-03 | 信丰县包钢新利稀土有限责任公司 | 一种钕铁硼废件废固的预处理装置及使用方法 |
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JPS5849631B2 (ja) * | 1979-09-06 | 1983-11-05 | 住友特殊金属株式会社 | 希土類磁石のスクラツプ再生方法 |
US4917724A (en) * | 1988-10-11 | 1990-04-17 | General Motors Corporation | Method of decalcifying rare earth metals formed by the reduction-diffusion process |
US5064465A (en) * | 1990-11-29 | 1991-11-12 | Industrial Technology Research Institute | Process for preparing rare earth-iron-boron alloy powders |
CN1044648C (zh) * | 1997-05-22 | 1999-08-11 | 南开大学 | 共沉淀还原扩散法制备钕铁硼永磁合金 |
JPH11329811A (ja) * | 1998-05-18 | 1999-11-30 | Sumitomo Special Metals Co Ltd | R−Fe−B系磁石用原料粉末並びにR−Fe−B系磁石の製造方法 |
US6221270B1 (en) * | 1998-06-22 | 2001-04-24 | Sumitomo Special Metal Co., Ltd. | Process for producing compound for rare earth metal resin-bonded magnet |
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2000
- 2000-05-26 KR KR10-2000-0028742A patent/KR100374706B1/ko active IP Right Grant
-
2001
- 2001-05-23 US US09/863,640 patent/US6676730B2/en not_active Expired - Lifetime
- 2001-05-24 JP JP2001155781A patent/JP2002020808A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103317146A (zh) * | 2013-07-09 | 2013-09-25 | 中国石油大学(华东) | 水热法制备钕铁硼磁粉的方法 |
RU2541259C1 (ru) * | 2013-11-07 | 2015-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский национальный исследовательский технологический университет" (ФГБОУ ВПО "КНИТУ") | Способ получения порошка, содержащего железо и алюминий, из водных растворов |
Also Published As
Publication number | Publication date |
---|---|
US6676730B2 (en) | 2004-01-13 |
KR100374706B1 (ko) | 2003-03-04 |
US20020005088A1 (en) | 2002-01-17 |
JP2002020808A (ja) | 2002-01-23 |
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