CN110783052A - 一种复合稀土类异方性粘结磁体及其制备方法 - Google Patents
一种复合稀土类异方性粘结磁体及其制备方法 Download PDFInfo
- Publication number
- CN110783052A CN110783052A CN201911076255.5A CN201911076255A CN110783052A CN 110783052 A CN110783052 A CN 110783052A CN 201911076255 A CN201911076255 A CN 201911076255A CN 110783052 A CN110783052 A CN 110783052A
- Authority
- CN
- China
- Prior art keywords
- magnetic powder
- organic solution
- powder
- bonded magnet
- series
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 30
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000006247 magnetic powder Substances 0.000 claims abstract description 150
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 50
- 239000011230 binding agent Substances 0.000 claims abstract description 44
- 239000002270 dispersing agent Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 116
- 239000003960 organic solvent Substances 0.000 claims description 38
- 239000005416 organic matter Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 16
- 239000011737 fluorine Substances 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 22
- 239000003822 epoxy resin Substances 0.000 description 10
- 229920000647 polyepoxide Polymers 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
-
- 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
- H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
-
- 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
-
- 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
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
-
- 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
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- 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
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- 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
- H01F1/0578—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 bonded together
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/083—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 in the form of particles, e.g. powder pressed, sintered, or bound together in a bonding agent
-
- 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
- H01F41/0266—Moulding; Pressing
-
- 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
- H01F41/0273—Imparting anisotropy
-
- 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
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
- B22F2301/355—Rare Earth - Fe intermetallic alloys
-
- 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
- B22F2304/00—Physical aspects of the powder
- B22F2304/10—Micron size particles, i.e. above 1 micrometer up to 500 micrometer
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
一种复合稀土类异方性粘结磁体及其制备方法，该复合稀土类异方性粘结磁体包括Nd‑Fe‑B系磁粉、Sm‑Fe‑N系磁粉、粘结剂以及无机纳米分散剂；该制备方法包括用HDDR法制备Nd‑Fe‑B系磁粉，用粉末冶金法制备Sm‑Fe‑N系磁粉，将Nd‑Fe‑B系磁粉、Sm‑Fe‑N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，最终制成复合稀土类异方性粘结磁体。本发明通过加入无机纳米分散剂，使得在粘结剂与Nd‑Fe‑B系磁粉和Sm‑Fe‑N磁粉混合过程中，可以对细微Sm‑Fe‑N粉末进行充分的分散，使细微Sm‑Fe‑N粉末和粘结剂均匀地包覆在异方性Nd‑Fe‑B系磁粉表面，能够进一步提升复合磁体的综合磁性能、密度及组织均匀性。
Description
技术领域
本发明涉及磁性材料技术领域，特别涉及一种复合稀土类异方性粘结磁体及其制备方法。
背景技术
用于粘结钕铁硼永磁材料的磁粉主要分为各向同性和异方性两大类。目前各向同性钕铁硼磁粉采用熔体快淬法制备，最大磁能积为12-16MGOe，由此制备的同性钕铁硼粘结磁体最大磁能积不超过12MGOe；而异方性钕铁硼粘结磁粉，通常采用HDDR法制备，由于其微观组织的特殊性，即细小晶粒(200-500nm)在[001]易磁化轴方向的平行排列，使得其最大磁能积可达到各向同性粘结磁粉的2-3倍，经模压或者注塑成型工艺，可以制备高性能异方性粘结磁体，符合电机器件小型化、轻量化和精密化的发展趋势。
在磁体成型过程中，单一粒度尺寸范围不利于成型磁体密度的提升。最好的方式就是粗粉和一定比例的细粉进行合理的配比，使得细粉可以填充到粗粉形成的空隙中，从而提升磁体的压制密度。而HDDR法制备的Nd-Fe-B系磁粉是通过吸氢-歧化-脱氢-再聚合过程制备的，其磁粉粒度尺寸在50-200微米之间。由于其活性较高，通过后续破碎，会导致磁粉氧含量大幅上升，磁性能降低，不易通过破碎制备更细粉。
通过添加更细粒度(1-12微米)的异方性Sm-Fe-N磁粉，则可以有效提升成型磁体的密度。专利文献ZL200410085531.1中，公开了粘结磁体由特定的平均颗粒直径和配合比的表面被界面活性剂覆盖的含有6at％以下Co的R1系d-HDDR粗磁铁粉末和表面被界面活性剂覆盖的R2系细微磁铁粉末、以及作为粘结剂的树脂所构成。但是由于R2系细微磁铁(Sm-Fe-N)的颗粒尺寸在1-10微米范围，易团聚，不容易分散，势必对成型磁体过程中细微磁铁粉末的分布均匀性以及压制磁体综合磁性能和密度产生不利影响。对如何克服易团聚的问题，未做任何描述和记载。
发明内容
为了解决上述问题，本发明提供了一种复合稀土类异方性粘结磁体及其制备方法，该方法通过加入无机纳米分散剂，使得在粘结剂与Nd-Fe-B系磁粉和Sm-Fe-N系磁粉混合过程中，可以对细微Sm-Fe-N粉末进行充分的分散，使细微Sm-Fe-N粉末和粘结剂均匀地包覆在异方性Nd-Fe-B系磁粉表面，能够进一步提升复合磁体的综合磁性能、密度及组织均匀性。
为了实现以上目的，本发明拟采用以下方案：
本发明的第一方面提供了一种复合稀土类异方性粘结磁体，包括Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂；
其中，Sm-Fe-N系磁粉含量为5-30wt.％，粘结剂含量为1-10wt.％，无机纳米分散剂含量为0.1-2wt.％，余量为Nd-Fe-B系磁粉。
进一步的，所述无机纳米分散剂是Al2O3、SiO2或TiO2中的任何一种或几种，粒度大小为30-100nm。
进一步的，所述Nd-Fe-B系磁粉的圆形度为0.6-0.8。
进一步的，所述Sm-Fe-N系磁粉的平均粒度为1-12微米。
进一步的，所述异方性粘结磁体的方形度大于30％。
进一步的，所述Sm-Fe-N系磁粉表面包覆含F有机物。
进一步的，所述含F有机物为含氟烷烃或含氟烯烃。
以上为本发明的复合稀土类异方性粘结磁体的详细描述。
本发明的第二方面提供了一种复合稀土类异方性粘结磁体的制备方法，包括如下步骤：
用HDDR法制备Nd-Fe-B系磁粉；
用粉末冶金法制备Sm-Fe-N系磁粉；
将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，制作成混胶粉；
将所述混胶粉通过模压、注射、压延或挤出制作成复合稀土类异方性粘结磁体。
进一步的，将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，制作成混胶粉的步骤包括：
用有机溶剂将所述粘结剂溶解，制成第一有机溶液；
在所述第一有机溶液中加入无机纳米分散剂，制成第二有机溶液；
将所述Sm-Fe-N系磁粉加入到所述第二有机溶液中，用超声进行均匀分散，制成第三有机溶液；
将所述Nd-Fe-B系磁粉加入到所述第三有机溶液中，充分搅拌使所述第三有机溶液中的有机溶剂完全挥发，制作成混胶粉。
进一步的，所述制备Sm-Fe-N系磁粉的步骤还包括：
在所述Sm-Fe-N系磁粉的表面包覆上含F有机物：
将所述Sm-Fe-N系磁粉加入到含F有机物的有机溶液中并充分搅拌，制成充分搅拌后的有机溶液；
充分搅拌后的有机溶液中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面。
以上为本发明的复合稀土类异方性粘结磁体的制备方法的详细描述。
综上所述，本发明提供了一种复合稀土类异方性粘结磁体及其制备方法，该复合稀土类异方性粘结磁体包括Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂、和无机纳米分散剂；该制备方法包括用HDDR法制备Nd-Fe-B系磁粉、用粉末冶金法制备Nd-Fe-B系磁粉、在Sm-Fe-N系磁粉的表面包覆上含F有机物、将Nd-Fe-B系磁粉、表面包覆上含F有机物的Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合制作成混胶粉，将所述混胶粉通过模压、注射、压延或挤出制作成复合稀土类异方性粘结磁体。
本发明的上述技术方案具有如下有益的技术效果：
本发明旨在通过加入无机纳米分散剂，对细微粉末Sm-Fe-N系磁粉进行充分的分散，使细微粉末Sm-Fe-N系磁粉和粘结剂均匀地包覆在异方性Nd-Fe-B系磁粉表面，能够进一步提升复合磁体的综合磁性能、密度及组织均匀性。
附图说明
图1是复合稀土类异方性粘结磁体制备方法的流程图；
图2是将Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合从而制作成混胶粉的方法流程图；
图3是在Sm-Fe-N系磁粉的表面包覆上含F有机物的方法流程图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明了，下面结合具体实施方式并参照附图，对本发明进一步详细说明。应该理解，这些描述只是示例性的，而并非要限制本发明的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要地混淆本发明的概念。
术语解释：
圆形度的计算：
通过SEM(扫描电镜)对磁粉进行拍照并对照片进行分析，计算圆形度。
计算圆形度的公式为：
圆形度＝(4π*面积)/(周长*周长)
所以，圆形的圆形度为1；所述计算的圆形度越接近1，代表其圆形度越好。
为了实现以上目的，本发明采用以下方案：
本发明的第一方面提供了一种复合稀土类异方性粘结磁体，包括Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂；其中，Sm-Fe-N系磁粉含量为5-30wt.％，粘结剂含量为1-10wt.％，无机纳米分散剂含量为0.1-2wt.％，余量为Nd-Fe-B系磁粉。
进一步的，该粘结剂包括树脂；该无机纳米分散剂是Al2O3、SiO2或TiO2中的任何一种或几种，粒度大小为30-100nm；该Nd-Fe-B系磁粉的圆形度为0.6-0.8，该Sm-Fe-N系磁粉的平均粒度为1-12微米，该异方性粘结磁体的方形度大于30％，该Sm-Fe-N系磁粉表面包覆含F有机物。
具体的，该含F有机物为含氟烷烃或含氟烯烃。
Nd-Fe-B系磁粉圆形度小于0.6,则其流动性不好，不易于压制致密，导致性能不高；圆形度大于0.8，则磁粉大颗粒流动性太好，不易于与粒度更细的Sm-Fe-N混合均匀；因此使Nd-Fe-B系磁粉的圆形度为0.6-0.8。
Sm-Fe-N系磁粉在此粒度范围之内，活性强，易于氧化，因此需要在制备过程中通过表面处理，包覆上含F有机物，提高Sm-Fe-N磁粉的抗氧化性，含F有机物可以是含氟烷烃、含氟烯烃等。
Nd-Fe-B系粗磁粉、Sm-Fe-N系细磁粉以及粘结剂可以制备高压制密度的粘结磁体，但是Sm-Fe-N系细磁粉的颗粒尺寸在1-12微米范围，易团聚，不容易分散，势必对成型磁体过程中细微磁铁粉末的分布均匀性以及磁体综合磁性能和压制密度产生不利影响。因此通过加入无机纳米分散剂，对Sm-Fe-N系细磁粉进行充分的分散，使Sm-Fe-N系细磁粉和粘结剂均匀地包覆在异方性Nd-Fe-B系粗磁粉表面，能够进一步提升复合磁体的综合磁性能、密度及组织均匀性。
本发明的第二方面提供了一种各项异性粘结磁体的制备方法，如图1所示，包括如下步骤：
S100,用HDDR法制备Nd-Fe-B系磁粉；
S200,用粉末冶金法制备Sm-Fe-N系磁粉；
S300,将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，制作成混胶粉；
进一步的，如图2所示，将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，制作成混胶粉的步骤包括：
S310,用有机溶剂将所述粘结剂溶解，制成第一有机溶液；
S320,在所述第一有机溶液中加入无机纳米分散剂，制成第二有机溶液；
S330,将所述Sm-Fe-N系磁粉加入到所述第二有机溶液中，用超声进行均匀分散，制成第三有机溶液；
S340,将所述Nd-Fe-B系磁粉加入到所述第三有机溶液中，充分搅拌使所述第三有机溶液中的有机溶剂完全挥发，制作成混胶粉。
进一步的，该有机溶剂包括丙酮。
S400,将所述混胶粉通过模压、注射、压延或挤出制作成复合稀土类异方性粘结磁体。
进一步的，所述制备Sm-Fe-N系磁粉的步骤还包括，在所述Sm-Fe-N系磁粉的表面包覆上含F有机物，如图3所示：：
将所述Sm-Fe-N系磁粉加入到含F有机物的有机溶液中并充分搅拌，制成充分搅拌后的有机溶液；
充分搅拌后的有机溶液中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面。
下面通过具体实施例对本发明进行详细描述。
选用HDDR法制备的Nd-Fe-B系磁粉，最大磁能积为38MGOe，内禀矫顽力为13.5kOe，平均颗粒直径为140微米；选用粉末冶金法制备的Sm-Fe-N系磁粉，最大磁能积为36MGOe，内禀矫顽力为11.0kOe，平均颗粒直径为3微米；选用丙酮作为有机溶剂；选用环氧树脂作为粘结剂。
实施例1
按照成分配方，用有机溶剂丙酮将占总质3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量0.1％的平均粒径30nm的Al2O3无机纳米分散剂,制成有机溶液A11；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A12中，用超声进行均匀分散，制成有机溶液A12；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A12中，充分搅拌使所述有机溶液A12的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例2
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量0.5％的平均粒径30nm的Al2O3无机纳米分散剂，制成有机溶液A21；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A21中，用超声进行均匀分散，制成有机溶液A22；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A22中，充分搅拌使所述有机溶液A22的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例3
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量2％的平均粒径30nm的Al2O3无机纳米分散剂,制成有机溶液A31；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A31中，用超声进行均匀分散，制成有机溶液A32；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A32中，充分搅拌使所述有机溶液A32中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例4
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量0.1％的平均粒径100nm的SiO2无机纳米分散剂，制成有机溶液A41；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A41中，用超声进行均匀分散,制成有机溶液A42；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A42中，充分搅拌使所述有机溶液A42中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例5
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量0.5％的平均粒径100nm的SiO2无机纳米分散剂；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A51中，用超声进行均匀分散,制成有机溶液A52；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A52中，充分搅拌使所述有机溶液A52中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例6
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量2％的平均粒径100nm的SiO2无机纳米分散剂；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A61中，用超声进行均匀分散,制成有机溶液A62；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A62中，充分搅拌使所述有机溶液A62中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例7
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量0.1％的平均粒径50nm的TiO2无机纳米分散剂；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A71中，用超声进行均匀分散,制成有机溶液A72；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A72中，充分搅拌使所述有机溶液A72中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例8
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量0.5％的平均粒径50nm的TiO2无机纳米分散剂；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A81中，用超声进行均匀分散,制成有机溶液A82；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A82中，充分搅拌使所述有机溶液A82中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
实施例9
按照成分配方，用有机溶剂丙酮将占总质量3％的粘结剂环氧树脂溶解，制成有机溶液A；
在上述有机溶液A中加入占总质量2％的平均粒径50nm的TiO2无机纳米分散剂；
将占总质量20％的Sm-Fe-N系磁粉加入到含F有机物的有机溶液B中，充分搅拌，制成有机溶液B1；
待有机溶液B1中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面；
将上述占总质量20％的含F有机物包覆的Sm-Fe-N系磁粉加入有机溶液A91中，用超声进行均匀分散,制成有机溶液A92；
将占总质量76.5％的Nd-Fe-B系磁粉加入有机溶液A92中，充分搅拌使所述有机溶液A92中的有机溶剂完全挥发，制作成混胶粉；
采用模压的方法将上述混胶粉制备成异方性粘结磁体。
对比例：
与上述实施例相比，不加入无机纳米分散剂，其他步骤完全相同。
通过实施例与对比例可以看出，无机纳米分散剂的加入提升了磁体的剩磁、最大磁能积和方形度以及磁体密度，效果明显。上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其他不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见地变化或变动仍处于本发明创造的保护范围之中。
综上所述，一种复合稀土类异方性粘结磁体及其制备方法，该复合稀土类异方性粘结磁体包括Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂、和无机纳米分散剂；该粘结剂包括树脂；该制备方法包括用HDDR法制备Nd-Fe-B系磁粉，用粉末冶金法法制备Sm-Fe-N系磁粉，将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，最终制成复合稀土类异方性粘结磁体。本发明通过引入无机纳米分散剂，使得Sm-Fe-N磁粉在与Nd-Fe-B系磁粉和粘结剂混合过程中，可以对细微Sm-Fe-N粉末进行充分的分散，使细微Sm-Fe-N粉末和粘结剂均匀地包覆在异方性Nd-Fe-B系磁粉表面，能够进一步提升复合磁体的密度及组织均匀性。
应当理解的是，本发明的上述具体实施方式仅仅用于示例性说明或解释本发明的原理，而不构成对本发明的限制。因此，在不偏离本发明的精神和范围的情况下所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。此外，本发明所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。
Claims (10)
1.一种复合稀土类异方性粘结磁体，其特征在于：包括Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂；
其中，Sm-Fe-N系磁粉含量为5-30wt.％，粘结剂含量为1-10wt.％，无机纳米分散剂含量为0.1-2wt.％，余量为Nd-Fe-B系磁粉。
2.根据权利要求1所述的复合稀土类异方性粘结磁体，其特征在于：
所述无机纳米分散剂是Al2O3、SiO2或TiO2中的任何一种或几种，粒度大小为30-100nm。
3.根据权利要求2所述的复合稀土类异方性粘结磁体，其特征在于，所述Nd-Fe-B系磁粉的圆形度为0.6-0.8。
4.根据权利要求3所述的复合稀土类异方性粘结磁体，其特征在于，所述Sm-Fe-N系磁粉的平均粒度为1-12微米。
5.根据权利要求4所述的复合稀土类异方性粘结磁体，其特征在于，所述异方性粘结磁体的方形度大于30％。
6.根据权利要求5所述的复合稀土类异方性粘结磁体，其特征在于：
所述Sm-Fe-N系磁粉表面包覆含F有机物。
7.根据权利要求6所述的复合稀土类异方性粘结磁体，其特征在于：
所述含F有机物为含氟烷烃或含氟烯烃。
8.根据权利要求1-7中任一项所述的一种复合稀土类异方性粘结磁体的制备方法，其特征在于，包括以下步骤：
用HDDR法制备Nd-Fe-B系磁粉；
用粉末冶金法制备Sm-Fe-N系磁粉；
将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，制作成混胶粉；
将所述混胶粉通过模压、注射、压延或挤出制作成复合稀土类异方性粘结磁体。
9.根据权利要求8所述的方法，其特征在于，将所述Nd-Fe-B系磁粉、Sm-Fe-N系磁粉、粘结剂和无机纳米分散剂按特定比例混合，制作成混胶粉的步骤包括：
用有机溶剂将所述粘结剂溶解，制成第一有机溶液；
在所述第一有机溶液中加入无机纳米分散剂，制成第二有机溶液；
将所述Sm-Fe-N系磁粉加入到所述第二有机溶液中，用超声进行均匀分散，制成第三有机溶液；
将所述Nd-Fe-B系磁粉加入到所述第三有机溶液中，充分搅拌使所述第三有机溶液中的有机溶剂完全挥发，制作成混胶粉。
10.根据权利要求9所述的方法，其特征在于，所述制备Sm-Fe-N系磁粉的步骤还包括：
在所述Sm-Fe-N系磁粉的表面包覆上含F有机物：
将所述Sm-Fe-N系磁粉加入到含F有机物的有机溶液中并充分搅拌，制成充分搅拌后的有机溶液；
充分搅拌后的有机溶液中的有机溶剂完全挥发，使所述含F有机物包覆在所述Sm-Fe-N系磁粉的表面。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076255.5A CN110783052B (zh) | 2019-11-06 | 2019-11-06 | 一种复合稀土类异方性粘结磁体及其制备方法 |
| JP2020182521A JP7004787B6 (ja) | 2019-11-06 | 2020-10-30 | 複合希土類異方性ボンド磁石及びその作製方法 |
| KR1020200144248A KR102391359B1 (ko) | 2019-11-06 | 2020-11-02 | 복합 희토류 이방성 본드 자석 및 그 제조 방법 |
| DE102020128946.4A DE102020128946A1 (de) | 2019-11-06 | 2020-11-03 | Zusammengesetztes, anisotropes verbundmagnet aus seltenerdelement und verfahren zur herstellung desselben |
| ZA2020/06870A ZA202006870B (en) | 2019-11-06 | 2020-11-04 | A composite rare earth anisotropic bonded magnet and a preparation method thereof |
| US17/090,710 US11981983B2 (en) | 2019-11-06 | 2020-11-05 | Composite rare earth anisotropic bonded magnet and a preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076255.5A CN110783052B (zh) | 2019-11-06 | 2019-11-06 | 一种复合稀土类异方性粘结磁体及其制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110783052A true CN110783052A (zh) | 2020-02-11 |
| CN110783052B CN110783052B (zh) | 2021-11-05 |
Family
ID=69389626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911076255.5A Active CN110783052B (zh) | 2019-11-06 | 2019-11-06 | 一种复合稀土类异方性粘结磁体及其制备方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11981983B2 (zh) |
| JP (1) | JP7004787B6 (zh) |
| KR (1) | KR102391359B1 (zh) |
| CN (1) | CN110783052B (zh) |
| DE (1) | DE102020128946A1 (zh) |
| ZA (1) | ZA202006870B (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510241A (zh) * | 2021-04-25 | 2021-10-19 | 福建尚辉润德新材料科技有限公司 | 一种磁粉注射成型粘结剂、制备方法及应用方法 |
| KR20210148919A (ko) * | 2020-06-01 | 2021-12-08 | 그리렘 하이-테크 캄파니 리미티드 | 이방성 본드 자석 및 그 제조 방법 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101263598B1 (ko) | 2011-10-20 | 2013-05-10 | 서울대학교산학협력단 | 연성 조인트의 좌굴 현상을 이용한 적응형 그립핑 로봇 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003168602A (ja) * | 2001-11-30 | 2003-06-13 | Japan Science & Technology Corp | 異方性希土類ボンド磁石およびその製造方法 |
| CN1606104A (zh) * | 2003-10-10 | 2005-04-13 | 爱知制钢株式会社 | 复合稀土类各向异性粘结磁铁、该磁铁用混合物以及它们的制造方法 |
| JP2007035667A (ja) * | 2005-07-22 | 2007-02-08 | Toda Kogyo Corp | ボンド磁石用複合磁性粉末、ボンド磁石用樹脂組成物及びボンド磁石 |
| CN103785845A (zh) * | 2014-01-21 | 2014-05-14 | 北京科技大学 | 一种微细球形Sm-Fe-N系永磁粉的制备方法 |
| CN104031601A (zh) * | 2014-05-28 | 2014-09-10 | 浙江大学 | 用于制备金属软磁复合材料的绝缘粘结剂及其使用方法 |
| CN105602408A (zh) * | 2016-02-29 | 2016-05-25 | 东北大学 | 一种钕铁硼稀土永磁体表面含氟金属涂层及其制备方法 |
| CN107578912A (zh) * | 2017-09-25 | 2018-01-12 | 烟台正海磁性材料股份有限公司 | 一种具有高矫顽力的钕铁硼磁体的制备方法 |
| CN108074701A (zh) * | 2016-11-07 | 2018-05-25 | 北京中科三环高技术股份有限公司 | 一种高密度粘结磁体及其制备方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05308007A (ja) * | 1992-04-30 | 1993-11-19 | Asahi Chem Ind Co Ltd | 熱硬化型磁性材樹脂複合材料 |
| JP2000034503A (ja) | 1998-07-17 | 2000-02-02 | Sumitomo Metal Mining Co Ltd | Ｓｍ−Ｆｅ−Ｎ系ボンド磁石用合金粉末 |
| CN1333410C (zh) * | 2003-01-16 | 2007-08-22 | 爱知制钢株式会社 | 各向异性磁铁粉末的制造方法 |
| JP5247754B2 (ja) * | 2010-03-30 | 2013-07-24 | 株式会社日立製作所 | 磁性材料及びその磁性材料を用いたモータ |
| JP6028322B2 (ja) | 2011-10-28 | 2016-11-16 | 日亜化学工業株式会社 | ボンド磁石用コンパウンド |
| JP2013179196A (ja) | 2012-02-28 | 2013-09-09 | Daihatsu Motor Co Ltd | 磁性材料 |
| JP6255977B2 (ja) * | 2013-03-28 | 2018-01-10 | Tdk株式会社 | 希土類磁石 |
| JP2015008232A (ja) | 2013-06-25 | 2015-01-15 | 住友電気工業株式会社 | 希土類磁石、及び希土類磁石の製造方法 |
| JP6521320B2 (ja) | 2013-07-25 | 2019-05-29 | 内山工業株式会社 | 磁気エンコーダ |
| JP2015029016A (ja) * | 2013-07-30 | 2015-02-12 | ミネベア株式会社 | ボンド磁石 |
| JP2016066675A (ja) | 2014-09-24 | 2016-04-28 | 住友金属鉱山株式会社 | 希土類等方性ボンド磁石 |
| JP2017203200A (ja) | 2016-05-13 | 2017-11-16 | 住友金属鉱山株式会社 | 希土類−遷移金属系合金粉末の製造方法 |
| JP6645359B2 (ja) * | 2016-05-30 | 2020-02-14 | 住友電装株式会社 | コネクタ |
| CN106952703B (zh) * | 2017-03-23 | 2018-12-14 | 南通龙磁电子有限公司 | 一种耐高温高磁性能永磁材料 |
| US10984930B2 (en) * | 2017-09-28 | 2021-04-20 | Hitachi Metals, Ltd. | Method for producing sintered R—T—B based magnet and diffusion source |
-
2019
- 2019-11-06 CN CN201911076255.5A patent/CN110783052B/zh active Active
-
2020
- 2020-10-30 JP JP2020182521A patent/JP7004787B6/ja active Active
- 2020-11-02 KR KR1020200144248A patent/KR102391359B1/ko active IP Right Grant
- 2020-11-03 DE DE102020128946.4A patent/DE102020128946A1/de active Pending
- 2020-11-04 ZA ZA2020/06870A patent/ZA202006870B/en unknown
- 2020-11-05 US US17/090,710 patent/US11981983B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003168602A (ja) * | 2001-11-30 | 2003-06-13 | Japan Science & Technology Corp | 異方性希土類ボンド磁石およびその製造方法 |
| CN1606104A (zh) * | 2003-10-10 | 2005-04-13 | 爱知制钢株式会社 | 复合稀土类各向异性粘结磁铁、该磁铁用混合物以及它们的制造方法 |
| JP2007035667A (ja) * | 2005-07-22 | 2007-02-08 | Toda Kogyo Corp | ボンド磁石用複合磁性粉末、ボンド磁石用樹脂組成物及びボンド磁石 |
| CN103785845A (zh) * | 2014-01-21 | 2014-05-14 | 北京科技大学 | 一种微细球形Sm-Fe-N系永磁粉的制备方法 |
| CN104031601A (zh) * | 2014-05-28 | 2014-09-10 | 浙江大学 | 用于制备金属软磁复合材料的绝缘粘结剂及其使用方法 |
| CN105602408A (zh) * | 2016-02-29 | 2016-05-25 | 东北大学 | 一种钕铁硼稀土永磁体表面含氟金属涂层及其制备方法 |
| CN108074701A (zh) * | 2016-11-07 | 2018-05-25 | 北京中科三环高技术股份有限公司 | 一种高密度粘结磁体及其制备方法 |
| CN107578912A (zh) * | 2017-09-25 | 2018-01-12 | 烟台正海磁性材料股份有限公司 | 一种具有高矫顽力的钕铁硼磁体的制备方法 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210148919A (ko) * | 2020-06-01 | 2021-12-08 | 그리렘 하이-테크 캄파니 리미티드 | 이방성 본드 자석 및 그 제조 방법 |
| KR102454806B1 (ko) * | 2020-06-01 | 2022-10-13 | 그리렘 하이-테크 캄파니 리미티드 | 이방성 본드 자석 및 그 제조 방법 |
| CN113510241A (zh) * | 2021-04-25 | 2021-10-19 | 福建尚辉润德新材料科技有限公司 | 一种磁粉注射成型粘结剂、制备方法及应用方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102391359B1 (ko) | 2022-05-06 |
| JP7004787B2 (ja) | 2022-01-21 |
| US20210134499A1 (en) | 2021-05-06 |
| KR20210054997A (ko) | 2021-05-14 |
| ZA202006870B (en) | 2021-09-29 |
| JP7004787B6 (ja) | 2022-06-07 |
| DE102020128946A1 (de) | 2021-05-06 |
| JP2021077882A (ja) | 2021-05-20 |
| CN110783052B (zh) | 2021-11-05 |
| US11981983B2 (en) | 2024-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110783052B (zh) | 一种复合稀土类异方性粘结磁体及其制备方法 | |
| JP5344171B2 (ja) | 異方性希土類−鉄系樹脂磁石 | |
| JP5347146B2 (ja) | 磁性材料及び磁石、並びに磁性材料の製造方法 | |
| KR100237097B1 (ko) | 희토류 자성분말, 그 영구자석 및 그 제조 방법 | |
| CN100394518C (zh) | 一种制备高矫顽力烧结稀土-铁-硼永磁材料的方法 | |
| CN102568731B (zh) | 锌纳米颗粒掺杂制备的高耐蚀性烧结钕-铁-硼基永磁材料及制备方法 | |
| CN102543342A (zh) | 铜纳米颗粒掺杂制备的高矫顽力和高耐蚀性烧结钕-铁-硼基永磁材料及制备方法 | |
| CN104867639A (zh) | 一种烧结钕铁硼永磁材料的制备方法 | |
| WO2012101752A1 (ja) | 磁性材料及び磁石、並びに磁性材料の製造方法 | |
| JPWO2003085684A1 (ja) | 複合希土類異方性ボンド磁石、複合希土類異方性ボンド磁石用コンパウンドおよびそれらの製造方法 | |
| JP2020161726A (ja) | 高周波用複合磁性材料 | |
| JP5045868B2 (ja) | ボンド磁石用複合磁性粉末、ボンド磁石用樹脂組成物及びボンド磁石 | |
| CN104332267B (zh) | 易面型R2Fe14B化合物/α‑Fe双相纳米晶高频软磁材料及其制备方法 | |
| JP2018174175A (ja) | ボンド磁石用フェライト粉末およびその製造方法 | |
| JP2016066675A (ja) | 希土類等方性ボンド磁石 | |
| JP4525003B2 (ja) | 永久磁石用粒子の製造方法 | |
| JP4466491B2 (ja) | 動力用モータ | |
| US20240186037A1 (en) | Magnetic material for high frequency use, and method for producing same | |
| CN111292911B (zh) | 一种改进型钕铁硼磁体材料及其改进方法 | |
| US20210313098A1 (en) | Magnet and method for producing magnet | |
| JP4706412B2 (ja) | 異方性複合磁石 | |
| JP2006179617A (ja) | 永久磁石及びその製造方法 | |
| JP4645336B2 (ja) | 希土類焼結磁石及びその製造方法 | |
| JP2001093714A (ja) | 複合型異方性ボンド磁石 | |
| JPH07297014A (ja) | 希土類−鉄系樹脂結合型磁石の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100088, 2, Xinjie street, Xicheng District, Beijing Patentee after: GRIREM ADVANCED MATERIALS Co.,Ltd. Patentee after: Youyan rare earth high technology Co., Ltd Address before: 100088, 2, Xinjie street, Xicheng District, Beijing Patentee before: GRIREM ADVANCED MATERIALS Co.,Ltd. Patentee before: Guoke rare earth new material Co., Ltd |