JP2014170877A - 軟磁性金属粉末及び圧粉磁心 - Google Patents
軟磁性金属粉末及び圧粉磁心 Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 73
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 title claims abstract description 60
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims description 8
- 229910052718 tin Inorganic materials 0.000 claims description 7
- 230000035699 permeability Effects 0.000 abstract description 26
- 229910052742 iron Inorganic materials 0.000 abstract description 24
- 230000007797 corrosion Effects 0.000 abstract description 19
- 238000005260 corrosion Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 48
- 239000002245 particle Substances 0.000 description 38
- 230000000052 comparative effect Effects 0.000 description 31
- 239000000428 dust Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 22
- 238000012360 testing method Methods 0.000 description 13
- 239000013078 crystal Substances 0.000 description 12
- 239000006247 magnetic powder Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000007423 decrease Effects 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 7
- 238000009692 water atomization Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- AZUYLZMQTIKGSC-UHFFFAOYSA-N 1-[6-[4-(5-chloro-6-methyl-1H-indazol-4-yl)-5-methyl-3-(1-methylindazol-5-yl)pyrazol-1-yl]-2-azaspiro[3.3]heptan-2-yl]prop-2-en-1-one Chemical compound ClC=1C(=C2C=NNC2=CC=1C)C=1C(=NN(C=1C)C1CC2(CN(C2)C(C=C)=O)C1)C=1C=C2C=NN(C2=CC=1)C AZUYLZMQTIKGSC-UHFFFAOYSA-N 0.000 description 4
- 229910008458 Si—Cr Inorganic materials 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 229910017082 Fe-Si Inorganic materials 0.000 description 3
- 229910017133 Fe—Si Inorganic materials 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 229910002056 binary alloy Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910002058 ternary alloy Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- B22F1/08—Metallic powder characterised by particles having an amorphous microstructure
-
- 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
-
- 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
- H01F1/14766—Fe-Si based alloys
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/08—Cores, Yokes, or armatures made from powder
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Powder Metallurgy (AREA)
- Soft Magnetic Materials (AREA)
Abstract
【解決手段】軟磁性金属粉末は、質量%で、Siを0.5%以上10.0%以下、Crを1.5%以上8.0%以下、Snを0.05%以上3.0%以下、残部Fe及び不可避的不純物からなる。圧粉磁心はかかる粉末を加圧成形してなる。
【選択図】図1
Description
得られる金属粉末の粒径に対するSnの影響を確認すべく、水アトマイズ法によりSn量を変えた金属粉末を製造し、その平均粒径D50を測定した。これらについては、図2にまとめた。なお、成分組成について、比較例1aは後述する比較例1と、実施例1aは後述する実施例1と対応するため、便宜的に比較例1a、1b及び実施例1a〜5aを表中で用いている。また、成分組成は、アトマイズ化する合金と得られる金属粉末とで同一である。
図2に示す各成分組成のFe−Si−Cr−Sn系合金を用意し、水アトマイズ法により金属粉末を製造した。得られた金属粉末について、その平均粒径D50をレーザー回折式粒度分布測定装置により計測した。
図2に示すように、平均粒径D50は、成分組成中のSnの量の増加とともに小さくなる傾向にあった。詳細には、Snを含まない比較例1aでは平均粒径D50が15.7μmで最大となり、Snの量を4wt%とした比較例2aでは平均粒径D50が11.8μmで最小となった。Snの量が実施例1a〜7aと順次多くなるにつれ、平均粒径D50は小さくなった。つまり、金属粉末を分級して所定の平均粒径の金属粉末を得ようとすれば、成分組成中のSnの量が多いほど、平均粒径D50の小さな金属粉末の歩留まりが高くなる。
次に、磁気特性に対する成分組成の影響を確認すべく、成分組成を変えた溶融金属3から水アトマイズ法により金属粉末を製造し、分級後、粒径を整えた金属粉末(一部については、分級を行っていないがこれについては後述する。)を用いてコア(圧粉磁心)を製造し、各種評価試験を行った。これらについて、図3乃至5にまとめた。
図3乃至5に示す各成分組成の合金を用意し、水アトマイズ法により金属粉末を製造した。実施例22及び23(図5参照)を除いて、得られた金属粉末については20μmの篩(ふるい)にて分級した。図中にも示したように、レーザー回折式粒度分布測定装置により平均粒径D50を計測したところ、実施例22及び23を除いて、平均粒径D50を10〜12μm程度に整えることが出来た。なお、実施例22及び23では、水アトマイズ法における噴霧圧などの製造条件を変更して平均粒径D50の比較的大きな金属粉末を製造し使用している。
各金属粉末を図6に示す外径φ19mm、内径φ13mm、厚さ4.8mmのリング状のトロイダルコア10に加工した。すなわち、100質量部の金属粉末に対し2.5質量部のエポキシ樹脂をバインダーとして添加し、所定の金属粉末を混合分散させて金型に充填し、面圧で6ton/cm2を与えて圧縮成形した。成形体を大気中で170℃、1時間保持して、エポキシ樹脂を硬化させてコア10を得た。
コア10の初透磁率、直流印加磁界、鉄損(コアロス)について、以下の各測定を行った。
耐食性は、コア10を温度85℃、相対湿度85%に維持された恒温恒湿槽中に500時間放置し、その表面の変色の有無を目視で観察することで評価した。
まず、Snの量を変化させた金属粉末から得られたコアの磁気特性及び耐食性の結果について説明する。
10 コア(圧粉磁心)
Claims (2)
- 質量%で、
Siを0.5%以上10.0%以下、
Crを1.5%以上8.0%以下、
Snを0.05%以上3.0%以下、残部Fe及び不可避的不純物からなることを特徴とする軟磁性金属粉末。 - 質量%で、
Siを0.5%以上10.0%以下、
Crを1.5%以上8.0%以下、
Snを0.05%以上3.0%以下、残部Fe及び不可避的不純物からなる軟磁性金属粉末を加圧成形してなることを特徴とする圧粉磁心。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013042706A JP6191855B2 (ja) | 2013-03-05 | 2013-03-05 | 軟磁性金属粉末及び高周波用圧粉磁心 |
US14/197,021 US20140251085A1 (en) | 2013-03-05 | 2014-03-04 | Soft magnetic metal powder and powder core |
TW103107172A TWI596624B (zh) | 2013-03-05 | 2014-03-04 | Soft magnetic metal powder and dust core |
CN201410076832.1A CN104036900B (zh) | 2013-03-05 | 2014-03-04 | 软磁性金属粉末及压粉磁芯 |
KR1020140026001A KR102144824B1 (ko) | 2013-03-05 | 2014-03-05 | 연자성 금속 분말 및 압분 자심 |
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JP2013042706A JP6191855B2 (ja) | 2013-03-05 | 2013-03-05 | 軟磁性金属粉末及び高周波用圧粉磁心 |
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JP2014170877A true JP2014170877A (ja) | 2014-09-18 |
JP6191855B2 JP6191855B2 (ja) | 2017-09-06 |
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JP2013042706A Active JP6191855B2 (ja) | 2013-03-05 | 2013-03-05 | 軟磁性金属粉末及び高周波用圧粉磁心 |
Country Status (5)
Country | Link |
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US (1) | US20140251085A1 (ja) |
JP (1) | JP6191855B2 (ja) |
KR (1) | KR102144824B1 (ja) |
CN (1) | CN104036900B (ja) |
TW (1) | TWI596624B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6620643B2 (ja) * | 2016-03-31 | 2019-12-18 | Tdk株式会社 | 圧粉成形磁性体、磁芯およびコイル型電子部品 |
JP6926419B2 (ja) * | 2016-09-02 | 2021-08-25 | Tdk株式会社 | 圧粉磁心 |
CN107452458B (zh) * | 2017-07-05 | 2020-10-13 | 深圳顺络汽车电子有限公司 | 一种铁合金磁性材料及其制备方法 |
CN111373065B (zh) * | 2017-09-25 | 2021-11-23 | 国立研究开发法人产业技术综合研究所 | 磁性材料及其制造方法 |
JP6536860B1 (ja) * | 2018-03-09 | 2019-07-03 | Tdk株式会社 | 軟磁性金属粉末、圧粉磁心および磁性部品 |
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DE102005001198A1 (de) * | 2005-01-10 | 2006-07-20 | H.C. Starck Gmbh | Metallische Pulvermischungen |
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2013
- 2013-03-05 JP JP2013042706A patent/JP6191855B2/ja active Active
-
2014
- 2014-03-04 US US14/197,021 patent/US20140251085A1/en not_active Abandoned
- 2014-03-04 TW TW103107172A patent/TWI596624B/zh active
- 2014-03-04 CN CN201410076832.1A patent/CN104036900B/zh active Active
- 2014-03-05 KR KR1020140026001A patent/KR102144824B1/ko active IP Right Grant
Patent Citations (9)
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JPH0418712A (ja) * | 1989-05-27 | 1992-01-22 | Tdk Corp | 磁気シールド材および圧粉コア |
JP2000100615A (ja) * | 1998-09-17 | 2000-04-07 | Nippon Telegr & Teleph Corp <Ntt> | 磁気シールド用鱗片状Fe基合金粉末 |
JP2001032054A (ja) * | 1999-07-22 | 2001-02-06 | Kawasaki Steel Corp | 高周波鉄損特性に優れるFe−Cr−Si系合金及びその製造方法 |
JP2001274007A (ja) * | 2000-03-27 | 2001-10-05 | Mitsubishi Materials Corp | 透磁率の高い電波吸収複合材 |
JP2002356749A (ja) * | 2001-03-27 | 2002-12-13 | Alps Electric Co Ltd | Fe基軟磁性合金とその製造方法 |
JP2003239050A (ja) * | 2002-02-20 | 2003-08-27 | Mitsubishi Materials Corp | 電気抵抗の高いFe−Cr系軟磁性焼結合金 |
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JP2011049568A (ja) * | 2010-09-17 | 2011-03-10 | Seiko Epson Corp | 圧粉磁心および磁性素子 |
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TW201440085A (zh) | 2014-10-16 |
US20140251085A1 (en) | 2014-09-11 |
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