CN106409497A - 一种钕铁硼磁体晶界扩散的方法 - Google Patents
一种钕铁硼磁体晶界扩散的方法 Download PDFInfo
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- CN106409497A CN106409497A CN201610789968.6A CN201610789968A CN106409497A CN 106409497 A CN106409497 A CN 106409497A CN 201610789968 A CN201610789968 A CN 201610789968A CN 106409497 A CN106409497 A CN 106409497A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0293—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/02—Electrophoretic coating characterised by the process with inorganic material
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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
- H01F1/0575—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 pressed, sintered or bonded together
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
性能指标 | Br(kGs) | Hcj(kOe) | (BH)m(MGOe) |
对比例1 | 14.02 | 12.22 | 47.86 |
实施例1 | 13.94 | 13.15 | 46.66 |
实施例2 | 13.96 | 13.10 | 47.26 |
实施例3 | 13.86 | 14.34 | 46.20 |
性能指标 | Br(kGs) | Hcj(kOe) | (BH)m(MGOe) |
对比例2 | 14.02 | 12.22 | 47.86 |
实施例4 | 13.65 | 18.46 | 45.28 |
实施例5 | 13.80 | 19.20 | 46.20 |
实施例6 | 13.52 | 24.45 | 43.80 |
Claims (6)
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Cited By (22)
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CN108010705A (zh) * | 2017-11-29 | 2018-05-08 | 宁德市星宇科技有限公司 | 一种钕铁硼磁体的制备方法 |
CN108305772A (zh) * | 2017-12-25 | 2018-07-20 | 宁波韵升股份有限公司 | 一种烧结钕铁硼磁体晶界扩散的方法 |
CN108987016A (zh) * | 2018-07-13 | 2018-12-11 | 杭州电子科技大学 | 一种纳米晶钕铁硼磁体的制备工艺 |
CN108987017A (zh) * | 2018-07-23 | 2018-12-11 | 浙江东阳东磁稀土有限公司 | 一种无重稀土烧结钕铁硼 |
CN109256274A (zh) * | 2017-07-14 | 2019-01-22 | 中国科学院宁波材料技术与工程研究所 | 低重稀土高矫顽力钕铁硼磁体的制备方法 |
CN109411173A (zh) * | 2018-09-20 | 2019-03-01 | 浙江东阳东磁稀土有限公司 | 一种可调控内禀矫顽力梯度的NdFeB稀土永磁体制造方法 |
CN110164644A (zh) * | 2019-06-04 | 2019-08-23 | 浙江英洛华磁业有限公司 | 一种高性能钕铁硼磁体的制备方法 |
CN110444381A (zh) * | 2018-05-04 | 2019-11-12 | 中国科学院宁波材料技术与工程研究所 | 一种高性能晶界扩散钕铁硼磁体及其制备方法 |
CN110942877A (zh) * | 2019-11-06 | 2020-03-31 | 杭州银纳磁电技术有限公司 | 一种钕铁硼磁体及其制备方法 |
CN111403167A (zh) * | 2020-04-26 | 2020-07-10 | 江苏科技大学 | 一种烧结钕铁硼磁体重稀土元素晶界扩散方法 |
CN111768965A (zh) * | 2020-05-06 | 2020-10-13 | 江西金力永磁科技股份有限公司 | 一种环形辐射取向磁体的制备方法 |
CN111785468A (zh) * | 2020-05-26 | 2020-10-16 | 安徽大地熊新材料股份有限公司 | 一种高性能稀土永磁体及其制备方法 |
CN111968819A (zh) * | 2020-09-09 | 2020-11-20 | 宁波科田磁业有限公司 | 一种低重稀土高性能烧结钕铁硼磁体及其制备方法 |
CN112017834A (zh) * | 2020-08-20 | 2020-12-01 | 合肥工业大学 | 一种高性能烧结钕铁硼磁体及其制备方法 |
CN112086255A (zh) * | 2020-09-18 | 2020-12-15 | 湖南奔朗新材料科技有限公司 | 一种高矫顽力、耐高温烧结钕铁硼磁体及其制备方法 |
CN112712990A (zh) * | 2020-12-21 | 2021-04-27 | 江西理工大学 | 一种低熔点金属或合金辅助重稀土元素晶界扩散的方法 |
CN112735718A (zh) * | 2020-12-28 | 2021-04-30 | 安徽大地熊新材料股份有限公司 | 一种高耐蚀高矫顽力烧结钕铁硼磁体的制备方法 |
CN112908665A (zh) * | 2020-02-17 | 2021-06-04 | 廊坊京磁精密材料有限公司 | 提高烧结钕铁硼矫顽力的渗透方法 |
CN113270241A (zh) * | 2020-09-16 | 2021-08-17 | 江西理工大学 | 一种钕铁硼磁体及其制备方法 |
CN113851320A (zh) * | 2021-10-13 | 2021-12-28 | 中国科学院宁波材料技术与工程研究所 | 一种轻稀土合金晶界扩散增强无重稀土烧结钕铁硼磁体的制备方法 |
CN114210976A (zh) * | 2021-10-15 | 2022-03-22 | 江西森阳科技股份有限公司 | 一种烧结钕铁硼双合金结合晶界扩散的方法 |
CN114334416A (zh) * | 2021-12-21 | 2022-04-12 | 北京工业大学 | 一种固液相分离扩散工艺制备高性能钕铁硼磁体的方法 |
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CN105702403A (zh) * | 2016-01-18 | 2016-06-22 | 浙江东阳东磁稀土有限公司 | 一种烧结钕铁硼磁体及制备方法 |
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CN105185497A (zh) * | 2015-08-28 | 2015-12-23 | 包头天和磁材技术有限责任公司 | 一种永磁材料的制备方法 |
CN105702403A (zh) * | 2016-01-18 | 2016-06-22 | 浙江东阳东磁稀土有限公司 | 一种烧结钕铁硼磁体及制备方法 |
Cited By (28)
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CN109256274A (zh) * | 2017-07-14 | 2019-01-22 | 中国科学院宁波材料技术与工程研究所 | 低重稀土高矫顽力钕铁硼磁体的制备方法 |
CN108010705A (zh) * | 2017-11-29 | 2018-05-08 | 宁德市星宇科技有限公司 | 一种钕铁硼磁体的制备方法 |
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CN112712990A (zh) * | 2020-12-21 | 2021-04-27 | 江西理工大学 | 一种低熔点金属或合金辅助重稀土元素晶界扩散的方法 |
CN112735718A (zh) * | 2020-12-28 | 2021-04-30 | 安徽大地熊新材料股份有限公司 | 一种高耐蚀高矫顽力烧结钕铁硼磁体的制备方法 |
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CN114210976A (zh) * | 2021-10-15 | 2022-03-22 | 江西森阳科技股份有限公司 | 一种烧结钕铁硼双合金结合晶界扩散的方法 |
CN114334416A (zh) * | 2021-12-21 | 2022-04-12 | 北京工业大学 | 一种固液相分离扩散工艺制备高性能钕铁硼磁体的方法 |
CN114334416B (zh) * | 2021-12-21 | 2024-03-19 | 北京工业大学 | 一种固液相分离扩散工艺制备高性能钕铁硼磁体的方法 |
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