JP2017220590A - 鉄基磁性体の圧粉磁心 - Google Patents
鉄基磁性体の圧粉磁心 Download PDFInfo
- Publication number
- JP2017220590A JP2017220590A JP2016114656A JP2016114656A JP2017220590A JP 2017220590 A JP2017220590 A JP 2017220590A JP 2016114656 A JP2016114656 A JP 2016114656A JP 2016114656 A JP2016114656 A JP 2016114656A JP 2017220590 A JP2017220590 A JP 2017220590A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- magnetic
- powder
- iron
- particle size
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 46
- 239000000696 magnetic material Substances 0.000 title description 6
- 239000006247 magnetic powder Substances 0.000 claims abstract description 127
- 239000002245 particle Substances 0.000 claims abstract description 106
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000002159 nanocrystal Substances 0.000 claims abstract description 23
- 239000013078 crystal Substances 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 229910052799 carbon Inorganic materials 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 21
- 230000008018 melting Effects 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 abstract 1
- 238000011049 filling Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 239000012535 impurity Substances 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 229910001004 magnetic alloy Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000005476 size effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- KPSZQYZCNSCYGG-UHFFFAOYSA-N [B].[B] Chemical compound [B].[B] KPSZQYZCNSCYGG-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C22C38/00—Ferrous alloys, e.g. steel 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
-
- 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
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15325—Amorphous metallic alloys, e.g. glassy metals containing rare earths
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15333—Amorphous metallic alloys, e.g. glassy metals containing nanocrystallites, e.g. obtained by annealing
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
-
- 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
- C22C2200/02—Amorphous
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
- C22C2200/04—Nanocrystalline
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Powder Metallurgy (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
前記鉄基磁性粉体の粒度分布が大小2つ以上のピークを有し、前記粒度分布において大きいピークを有する磁性粉体は、その結晶構造がナノ結晶又は非晶質であり、
前記粒度分布において小さいピークを有する磁性粉体の粒子と前記大きいピークを有する磁性粉体の粒子とは互いに結合状態であることを特徴とする。
該磁性粉体を熱処理することで前記磁性粉体の粒子内部にナノ結晶を形成させる工程と、
該磁性粉体の表面近傍を加熱することで前記磁性粉体の粒子表面の突起部を除去する、あるいは粒子表面の鋭角部を溶融させて球面に近い形状にする工程と、
前記加熱処理により少なくとも表面を処理した、大きさが2種類以上の磁性粉体を用いて混合した磁性粉体をプレス成形する工程と、
で構成することを特徴とする。
前記鉄基磁性粉体の粒度分布が大小2つ以上のピークを有し、前記粒度分布において大きいピークを有する磁性粉体は、その結晶構造がナノ結晶又は非晶質であり、
前記粒度分布において小さいピークを有する磁性粉体の粒子と前記大きいピークを有する磁性粉体の粒子とは互いに結合状態であることを特徴とする。
該磁性粉体を熱処理することで前記磁性粉体の粒子内部にナノ結晶を形成させる工程と、
該磁性粉体の表面近傍を加熱処理することで前記磁性粉体の粒子表面の突起部を除去する、あるいは粒子表面の鋭角部を溶融させて球面に近い形状にする工程と、
前記加熱処理により少なくとも表面を処理した、大きさが2種類以上の磁性粉体を用いて混合した磁性粉体をプレス成形する工程と、
で構成することを特徴とする。
<圧粉磁心>
図1は、実施の形態1に係る圧粉磁心の断面構造を示す概略断面図である。
この圧粉磁心は、鉄を主成分とする鉄基磁性粉体で構成されている。この鉄基磁性粉体は、粒度分布において大小2つ以上のピークを有する。粒度分布において大きいピークを有する磁性粉体は、その結晶構造がナノ結晶又は非晶質である。また、粒度分布において小さいピークを有する磁性粉体の粒子1と大きいピークを有する磁性粉体の粒子2とは互いに結合状態である。
図2は、実施の形態1に係る圧粉磁心の製造方法のフローチャートである。この圧粉磁心の製造方法は、以下の各工程を含む。
(a)鉄を主成分とする鉄基磁性基材を機械的に砕くことで、砕く前の外径よりも小さい外径にさせた磁性粉体を形成する(S01)。
(b)該磁性粉体を熱処理することで磁性粉体の粒子内部にナノ結晶を形成させる(S02)。
(c)該磁性粉体の表面近傍を加熱処理することで磁性粉体の粒子表面の突起部を除去する、あるいは粒子表面の鋭角部を溶融させて球面に近い形状にする(S03)。
(d)加熱処理により少なくとも表面を処理した、大きさが2種類以上の磁性粉体を用いて混合した磁性粉体をプレス成形する(S04)。
以上の工程によって、圧粉磁心を得ることができる。
また、条件5では、酸素濃度の増加による効果を検証する目的で炭素濃度は従来例と同等とさせつつ、酸素濃度を条件4とほぼ同等の21.0wt%とした。
2 粒子径の大きい方の磁性粉体の粒子
Claims (7)
- 鉄を主成分とする鉄基磁性粉体で構成された圧粉磁心であって、
前記鉄基磁性粉体の粒度分布が大小2つ以上のピークを有し、前記粒度分布において大きいピークを有する磁性粉体は、その結晶構造がナノ結晶又は非晶質であり、
前記粒度分布において小さいピークを有する磁性粉体の粒子と前記大きいピークを有する磁性粉体の粒子とは互いに結合状態であることを特徴とする圧粉磁心。 - 前記粒度分布において前記小さいピークを有する磁性粉体は、前記粒度分布において前記大きいピークを有する磁性粉体よりも、炭素を多く含有することを特徴とする、請求項1に記載の圧粉磁心。
- 前記粒度分布において前記小さいピークを有する磁性粉体は、前記粒度分布において前記大きいピークを有する磁性粉体よりも、酸素を多く含むことを特徴とする、請求項1に記載の圧粉磁心。
- 前記粒度分布において前記大きいピークを有する磁性粉体は、その結晶粒径の平均が、5nm以上、30nm以下の範囲であることを特徴とする、請求項1に記載の圧粉磁心。
- 鉄を主成分とする鉄基磁性基材を機械的に砕くことで、砕く前の外径よりも小さい外径にさせた磁性粉体を形成する工程と、
該磁性粉体を熱処理することで前記磁性粉体の粒子内部にナノ結晶を形成させる工程と、
該磁性粉体の表面近傍を加熱処理することで前記磁性粉体の粒子表面の突起部を除去する、あるいは粒子表面の鋭角部を溶融させて球面に近い形状にする工程と、
前記加熱処理により少なくとも表面を処理した、大きさが2種類以上の磁性粉体を用いて混合した磁性粉体をプレス成形する工程と、
で構成することを特徴とする圧粉磁心の製造方法。 - 大きさが2種類以上の前記磁性粉体の少なくとも小さい方の磁性粉体は、鉄の融点を下げる方向に働く元素を含有していることを特徴とする、請求項5に記載の圧粉磁心の製造方法。
- 大きさが2種類以上の前記磁性粉体の少なくとも大きい方の磁性粉体は、粉体内の結晶構造として、結晶粒径が3nm以上、150nm以下からなるナノ結晶構造であること、あるいはナノ結晶構造と共存したアモルファス構造であることを特徴とする、請求項5に記載の圧粉磁心の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016114656A JP6722887B2 (ja) | 2016-06-08 | 2016-06-08 | 鉄基磁性体の圧粉磁心 |
PCT/JP2017/014055 WO2017212760A1 (ja) | 2016-06-08 | 2017-04-04 | 圧粉磁心およびその製造方法 |
CN201780033748.3A CN109219857B (zh) | 2016-06-08 | 2017-04-04 | 压粉磁芯及其制造方法 |
US16/300,232 US20190156976A1 (en) | 2016-06-08 | 2017-04-04 | Dust core and method for producing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016114656A JP6722887B2 (ja) | 2016-06-08 | 2016-06-08 | 鉄基磁性体の圧粉磁心 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017220590A true JP2017220590A (ja) | 2017-12-14 |
JP6722887B2 JP6722887B2 (ja) | 2020-07-15 |
Family
ID=60578479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016114656A Expired - Fee Related JP6722887B2 (ja) | 2016-06-08 | 2016-06-08 | 鉄基磁性体の圧粉磁心 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20190156976A1 (ja) |
JP (1) | JP6722887B2 (ja) |
CN (1) | CN109219857B (ja) |
WO (1) | WO2017212760A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019169688A (ja) * | 2018-03-26 | 2019-10-03 | Tdk株式会社 | 軟磁性材料および圧粉磁心 |
JP2021163913A (ja) * | 2020-04-02 | 2021-10-11 | セイコーエプソン株式会社 | 圧粉磁心の製造方法および圧粉磁心 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111710520B (zh) * | 2020-07-14 | 2022-01-21 | 香磁磁业(深圳)有限公司 | 一种磁铁材料的制备方法 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1092619A (ja) * | 1996-09-11 | 1998-04-10 | Alps Electric Co Ltd | Fe基軟磁性金属ガラス焼結体およびその製造方法 |
JPH10154625A (ja) * | 1996-10-22 | 1998-06-09 | Inst Fuer Festkoerper & Werkstofforsh Dresden Ev | 中実磁性体を製造する方法 |
JP2003049201A (ja) * | 2001-08-03 | 2003-02-21 | High Frequency Heattreat Co Ltd | 金属及び金属系化合物の球状粉末とその製造方法 |
JP2005314716A (ja) * | 2004-04-27 | 2005-11-10 | Hitachi Metals Ltd | ターゲット材の製造方法 |
JP2005347641A (ja) * | 2004-06-04 | 2005-12-15 | Hitachi Metals Ltd | 圧粉磁心およびその製造方法ならびに巻線部品 |
JP2007220876A (ja) * | 2006-02-16 | 2007-08-30 | Nissan Motor Co Ltd | 軟磁性合金圧密体及びその製造方法 |
JP2007251125A (ja) * | 2006-02-16 | 2007-09-27 | Nissan Motor Co Ltd | 軟磁性合金圧密体及びその製造方法 |
JP2009054709A (ja) * | 2007-08-24 | 2009-03-12 | Fuji Electric Device Technology Co Ltd | 圧粉磁心及びその製造方法 |
JP2013213247A (ja) * | 2012-03-30 | 2013-10-17 | Seiko Epson Corp | 軟磁性粉末、圧粉磁心および磁性素子 |
JP2014138134A (ja) * | 2013-01-18 | 2014-07-28 | Tamura Seisakusho Co Ltd | 圧粉磁心とその製造方法 |
JP2015185758A (ja) * | 2014-03-25 | 2015-10-22 | Ntn株式会社 | アモルファス圧粉磁心とその製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7297290B2 (en) * | 2003-08-08 | 2007-11-20 | The Board Of Regents Of The University And Community College System Of Nevada | Nanostructured magnetorheological fluids and gels |
JP6131577B2 (ja) * | 2012-11-20 | 2017-05-24 | セイコーエプソン株式会社 | 複合粒子、圧粉磁心、磁性素子および携帯型電子機器 |
JP6322886B2 (ja) * | 2012-11-20 | 2018-05-16 | セイコーエプソン株式会社 | 複合粒子、複合粒子の製造方法、圧粉磁心、磁性素子および携帯型電子機器 |
JP6436082B2 (ja) * | 2013-07-17 | 2018-12-12 | 日立金属株式会社 | 圧粉磁心、これを用いたコイル部品および圧粉磁心の製造方法 |
US9719159B2 (en) * | 2014-09-24 | 2017-08-01 | Cyntec Co., Ltd. | Mixed magnetic powders and the electronic device using the same |
-
2016
- 2016-06-08 JP JP2016114656A patent/JP6722887B2/ja not_active Expired - Fee Related
-
2017
- 2017-04-04 CN CN201780033748.3A patent/CN109219857B/zh not_active Expired - Fee Related
- 2017-04-04 US US16/300,232 patent/US20190156976A1/en not_active Abandoned
- 2017-04-04 WO PCT/JP2017/014055 patent/WO2017212760A1/ja active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1092619A (ja) * | 1996-09-11 | 1998-04-10 | Alps Electric Co Ltd | Fe基軟磁性金属ガラス焼結体およびその製造方法 |
JPH10154625A (ja) * | 1996-10-22 | 1998-06-09 | Inst Fuer Festkoerper & Werkstofforsh Dresden Ev | 中実磁性体を製造する方法 |
JP2003049201A (ja) * | 2001-08-03 | 2003-02-21 | High Frequency Heattreat Co Ltd | 金属及び金属系化合物の球状粉末とその製造方法 |
JP2005314716A (ja) * | 2004-04-27 | 2005-11-10 | Hitachi Metals Ltd | ターゲット材の製造方法 |
JP2005347641A (ja) * | 2004-06-04 | 2005-12-15 | Hitachi Metals Ltd | 圧粉磁心およびその製造方法ならびに巻線部品 |
JP2007220876A (ja) * | 2006-02-16 | 2007-08-30 | Nissan Motor Co Ltd | 軟磁性合金圧密体及びその製造方法 |
JP2007251125A (ja) * | 2006-02-16 | 2007-09-27 | Nissan Motor Co Ltd | 軟磁性合金圧密体及びその製造方法 |
JP2009054709A (ja) * | 2007-08-24 | 2009-03-12 | Fuji Electric Device Technology Co Ltd | 圧粉磁心及びその製造方法 |
JP2013213247A (ja) * | 2012-03-30 | 2013-10-17 | Seiko Epson Corp | 軟磁性粉末、圧粉磁心および磁性素子 |
JP2014138134A (ja) * | 2013-01-18 | 2014-07-28 | Tamura Seisakusho Co Ltd | 圧粉磁心とその製造方法 |
JP2015185758A (ja) * | 2014-03-25 | 2015-10-22 | Ntn株式会社 | アモルファス圧粉磁心とその製造方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019169688A (ja) * | 2018-03-26 | 2019-10-03 | Tdk株式会社 | 軟磁性材料および圧粉磁心 |
JP7087539B2 (ja) | 2018-03-26 | 2022-06-21 | Tdk株式会社 | 軟磁性材料および圧粉磁心 |
JP2021163913A (ja) * | 2020-04-02 | 2021-10-11 | セイコーエプソン株式会社 | 圧粉磁心の製造方法および圧粉磁心 |
JP7447640B2 (ja) | 2020-04-02 | 2024-03-12 | セイコーエプソン株式会社 | 圧粉磁心の製造方法および圧粉磁心 |
Also Published As
Publication number | Publication date |
---|---|
US20190156976A1 (en) | 2019-05-23 |
WO2017212760A1 (ja) | 2017-12-14 |
JP6722887B2 (ja) | 2020-07-15 |
CN109219857A (zh) | 2019-01-15 |
CN109219857B (zh) | 2020-12-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6089430B2 (ja) | 軟磁性粉末、圧粉磁心および磁性素子 | |
WO2011145674A1 (ja) | 希土類永久磁石の製造方法および希土類永久磁石 | |
JP4010296B2 (ja) | 軟磁性粉末材料の製造方法 | |
JP6642838B2 (ja) | R−t−b系焼結磁石の製造方法 | |
JP2014057075A (ja) | 希土類異方性磁石とその製造方法 | |
JP4865100B2 (ja) | 永久磁石及び永久磁石の製造方法 | |
TW200936782A (en) | Fe-Si-La alloy having excellent magnetocaloric properties | |
WO2017212760A1 (ja) | 圧粉磁心およびその製造方法 | |
CN100403464C (zh) | 软磁性材料的制造方法 | |
JP4923147B2 (ja) | 永久磁石及び永久磁石の製造方法 | |
JP4865097B2 (ja) | 永久磁石及び永久磁石の製造方法 | |
Horikawa et al. | Recent progress in the development of high-performance bonded magnets using rare earth–Fe compounds | |
JP4865099B2 (ja) | 永久磁石及び永久磁石の製造方法 | |
US20190013129A1 (en) | Dust core | |
JP2008172257A (ja) | 絶縁軟磁性金属粉末成形体の製造方法 | |
JP2009076755A (ja) | 希土類系焼結磁石の製造方法及び希土類系ボンド磁石の製造方法 | |
JP2009147252A (ja) | 複合磁性材料およびその製造方法 | |
JP5501826B2 (ja) | 希土類焼結磁石の製造方法 | |
JP5682724B1 (ja) | 軟磁性金属粉末および軟磁性金属圧粉コア | |
JP2017183348A (ja) | R−t−b系焼結磁石の製造方法 | |
JP4923150B2 (ja) | 永久磁石及び永久磁石の製造方法 | |
JP5682725B1 (ja) | 軟磁性金属粉末および軟磁性金属圧粉コア | |
WO2019044132A1 (ja) | Fe基合金組成物、軟磁性材料、圧粉磁心、電気・電子関連部品および機器 | |
JP2004137582A (ja) | 希土類焼結磁石およびその製造方法 | |
JP2013098319A (ja) | Nd−Fe−B系磁石の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20180927 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190409 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190605 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191203 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200116 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200602 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200605 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6722887 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
LAPS | Cancellation because of no payment of annual fees |