JP4880462B2 - 鉄系軟磁性粉末 - Google Patents
鉄系軟磁性粉末 Download PDFInfo
- Publication number
- JP4880462B2 JP4880462B2 JP2006526044A JP2006526044A JP4880462B2 JP 4880462 B2 JP4880462 B2 JP 4880462B2 JP 2006526044 A JP2006526044 A JP 2006526044A JP 2006526044 A JP2006526044 A JP 2006526044A JP 4880462 B2 JP4880462 B2 JP 4880462B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- less
- weight
- iron
- base
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052742 iron Inorganic materials 0.000 title description 9
- 239000006247 magnetic powder Substances 0.000 title description 2
- 239000000843 powder Substances 0.000 claims abstract description 88
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 239000012535 impurity Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 238000004438 BET method Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000137 annealing Methods 0.000 claims description 13
- 239000000314 lubricant Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000004610 Internal Lubricant Substances 0.000 claims description 2
- 238000010292 electrical insulation Methods 0.000 claims description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000011162 core material Substances 0.000 description 12
- 230000035699 permeability Effects 0.000 description 11
- 238000000748 compression moulding Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229910019142 PO4 Inorganic materials 0.000 description 6
- 239000000306 component Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 6
- 239000010452 phosphate Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910000576 Laminated steel Inorganic materials 0.000 description 3
- 239000008358 core component Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000009692 water atomization Methods 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 239000004605 External Lubricant Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UDWPONKAYSRBTJ-UHFFFAOYSA-N [He].[N] Chemical compound [He].[N] UDWPONKAYSRBTJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
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
- H01F1/33—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
-
- 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
- B22F1/16—Metallic particles coated with a non-metal
-
- 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
-
- 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
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12049—Nonmetal component
- Y10T428/12056—Entirely inorganic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12181—Composite powder [e.g., coated, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
Description
本発明に従えば、粒子の比表面積が際立った特色であることが判明した。粒子の比表面積は、粒子径分布、粒子形状及び粒子の粗さに依存する。また、所謂粒子の開放気孔率の実現値が、比表面積に影響を与えるであろう。比表面積は、通常、所謂BET法で測定され、その結果がm2/kgで表現される。
純度は、基材粉末の別の重要な特徴である。粉末が極めて純粋でなければならず、基材粉末の0.30%以下の不純物総量を有する鉄を含むべきであることが判明した。0.25重量%未満、好ましくは0.20重量%未満の不純物を有する粉末が好ましい。少量の不純物を含む基材粉末は、純粋な鋼材スクラップを用いることにより得ることができる。基材粉末に存在する可能性がある不純物は、例えば、Cr、Cu、Mn、Ni、P、S、Si、Cである。酸素は、本発明の関係では、不純物とみなされない。
粉末の0.05重量%未満の、十分に低い酸素含有量は、低酸素含有量を得るために十分な温度及び時間で、基材粉末をアニールすることにより得ることができる。本発明の粉末は、好ましくは、0.04重量%未満の酸素含有量である。アニーリング温度は、900℃と1,300℃の間で変更することができ、アニーリング時間は、オーブンの大きさ、加熱の仕方、オーブンに充填された材料の量などに依存して変更することができる。通常用いられるアニーリング時間は、5と300分の間、好ましくは10と100分の間で変更することができる。
本発明によれば、アニールされた基材粉末は、電気絶縁コーテイング又はバリアーを設けている。適切には、このコーテイングは、均一かつ極めて薄く、米国特許第6,348,265号に記載された種類である。この特許を参考文献として本明細書に援用する。このような絶縁コーテイングは、基材粉末を、目標とする量を得るに十分な時間で、リン酸有機溶媒で処理することにより、基材粉末粒子上に塗布することができる。有機溶媒中のリン酸濃度は、0.5と50%、好ましくは0.5と30%の間で変更することができる。このようなコーテイングが、鉄基材粉末粒子に酸素及びリンを加えることになるので、コーテッド粒子の化学分析結果は、非コーテッド粉末よりも高濃度の酸素及びリンを含有するであろう。したがって、好ましくは、酸素濃度は、コーテッド粉末を基準にして、多くても0.20%であり、リン濃度は多くても0.10%でなければならない。また別の種類の絶縁コーテイングも使用できる。
このように、電気絶縁層をそなえた鉄系粉末は、4重量%までの量の潤滑剤と組み合わせることができる。通常、潤滑剤の量は、粉末組成物を基準にして0.1と2重量%の間、好ましくは0.1〜1.0重量%で変動する。室温で用いられる潤滑剤(低温潤滑剤)の代表的な例は、Kenolube(登録商標)、エチレン−ビス−ステアロアミド(EBS)、及びステアリン酸亜鉛などの金属ステアリン酸塩がある。高温で用いられる潤滑剤(高温潤滑剤)の代表的な例は、Promold(登録商標)又はステアリン酸リチウムである。
圧縮成形は2,000MPaまでの圧力で実施できるが、この圧力は通常400と1,000MPaの間で変動する。圧縮成形は、室温及び高温で実施できる。更に、圧縮操作は、成形型で一軸加圧成形操作として実施されることが好ましく、又は米国特許第6,503,444号に記載されたように高速圧縮成形として実施されることが好ましい。成形型の壁面に外部潤滑剤が塗布される成形型壁面潤滑は、内部潤滑剤の要求を除くために用いることができる。場合によっては、内部及び外部潤滑の組み合わせを用いてもよい。同様な既知の粉末と比較して、新規な粉末が有する特色は、同一圧縮成形圧力で、高密度が得られることである。
熱処理法により、全損失がかなり低減される。積層鋼板の従来材料に対比して、絶縁粉末の全損失は、低周波で比較的高いヒステリシス損失で特色づけられる。しかし、熱処理により、このヒステリシス損失が減少する。高周波では、大きくなった渦電流損失が、全損失の中でかなり増加するであろう。驚くことに、本発明の粉末は、より高い熱処理温度に耐えることができることが判明した。
Claims (16)
- 軟磁性複合体の製造のための、高純度な、アニールされた鉄粉末であって、それが基材粉末からなり、その粒子が不規則な形状であり、かつ電気絶縁コーテイングで取り囲まれていること、基材粉末の避けがたい不純物量が0.30%未満であること、基材粉末の酸素含有量が0.05%未満であり、BET法で測定した時に基材粉末の比表面積が60m2/kg未満であり、かつ、基材粉末の重量平均粒子径が100μm超であることを特徴とする鉄粉末。
- 基材粉末の重量平均粒子径が、100と450μmの間、好ましくは180と360μmの間である請求項1に記載の粉末。
- 基材粉末が、0.25重量%未満の、好ましくは0.20重量%未満の不純物を含む請求項1又は2に記載の粉末。
- 基材粉末が、0.04重量%未満の、好ましくは0.03重量%未満の酸素含有量である請求項3に記載の粉末。
- 基材粉末が、55m2/kg未満の、好ましくは50m2/kg未満の比表面積をもつ請求項1〜4のいずれか一項に記載の粉末。
- コーテイングが、リン及び酸素を含む請求項1〜5のいずれか一項に記載の粉末。
- 電気的に絶縁された粉末粒子のリン含有量が、0.10重量%未満である請求項6に記載の粉末。
- 電気的に絶縁された粉末粒子の酸素含有量が、0.20重量%未満である請求項6に記載の粉末。
- 潤滑剤及び/又はバインダーと組み合わされた請求項1〜8のいずれか一項に記載の粉末を含む粉末組成物。
- 潤滑剤の量が、粉末組成物の、約4重量%未満、好ましくは0.1と2重量%の間である請求項9に記載の粉末組成物。
- 軟磁性複合材料の製造方法であって、
(a)0.30%未満の全不純物含有量、BET法で測定した時に60m2/kg未満の比表面積を有し、かつ、重量平均粒子径が100μm超である純水アトマイズされた鉄粉末を供給するステップ、
(b)得られた粉末を、還元雰囲気中で、酸素含有量を粉末の0.05%未満の値に還元するために有効な温度及び時間でアニールするステップ、
(c)鉄粉末粒子に電気絶縁コーテイングを実施するステップ、
(d)任意選択で、得られた粉末を潤滑剤及び/又はバインダーと混合するステップ、
(e)ステップ(d)に従って得られた粉末を素地に圧縮するステップ、及び
(f)任意選択で、得られた素地を加熱するステップを含む方法。 - 少なくとも900℃の温度でアニーリングを実施する請求項11に記載の方法。
- 少なくとも5分間アニーリングを実施する請求項11〜12のいずれか一項に記載の方法。
- アニールされた粉末をリン含有溶液で処理することにより電気絶縁コーテイングを得る請求項11〜13のいずれか一項に記載の方法。
- 2,000Mpaまでの圧力で圧縮を実施する請求項11〜14のいずれか一項に記載の方法。
- 任意選択で、内部潤滑剤を用いず、外部潤滑で圧縮を実施する請求項11〜15のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0302427-0 | 2003-09-09 | ||
SE0302427A SE0302427D0 (sv) | 2003-09-09 | 2003-09-09 | Iron based soft magnetic powder |
PCT/SE2004/001296 WO2005023464A1 (en) | 2003-09-09 | 2004-09-08 | Iron based soft magnetic powder |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010075052A Division JP2010209469A (ja) | 2003-09-09 | 2010-03-29 | 鉄系軟磁性粉末 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007505216A JP2007505216A (ja) | 2007-03-08 |
JP4880462B2 true JP4880462B2 (ja) | 2012-02-22 |
Family
ID=28787309
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006526044A Active JP4880462B2 (ja) | 2003-09-09 | 2004-09-08 | 鉄系軟磁性粉末 |
JP2010075052A Withdrawn JP2010209469A (ja) | 2003-09-09 | 2010-03-29 | 鉄系軟磁性粉末 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010075052A Withdrawn JP2010209469A (ja) | 2003-09-09 | 2010-03-29 | 鉄系軟磁性粉末 |
Country Status (18)
Country | Link |
---|---|
US (1) | US7455905B2 (ja) |
EP (1) | EP1663549B1 (ja) |
JP (2) | JP4880462B2 (ja) |
KR (1) | KR101097896B1 (ja) |
CN (1) | CN100439012C (ja) |
AT (1) | ATE394187T1 (ja) |
AU (1) | AU2004270090B2 (ja) |
BR (1) | BRPI0413853B1 (ja) |
CA (1) | CA2534466C (ja) |
DE (1) | DE602004013606D1 (ja) |
ES (1) | ES2305851T3 (ja) |
MX (1) | MX258741B (ja) |
PL (1) | PL1663549T3 (ja) |
RU (1) | RU2311261C2 (ja) |
SE (1) | SE0302427D0 (ja) |
TW (1) | TWI289487B (ja) |
WO (1) | WO2005023464A1 (ja) |
ZA (1) | ZA200601216B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170095415A (ko) | 2013-04-19 | 2017-08-22 | 제이에프이 스틸 가부시키가이샤 | 압분 자심용 철분 및 압분 자심용 절연 피복 철분 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005213621A (ja) * | 2004-01-30 | 2005-08-11 | Sumitomo Electric Ind Ltd | 軟磁性材料および圧粉磁心 |
US20070241063A1 (en) * | 2006-04-18 | 2007-10-18 | Quebec Metal Powders Ltd. | Process for treating water using atomized ferrous powders containing 0.25 to 4 wt% carbon and 1 to 6 wt% oxygen |
PL2147445T3 (pl) * | 2006-12-07 | 2017-10-31 | Hoeganaes Ab | Magnetycznie miękki proszek |
RU2510993C2 (ru) * | 2008-03-20 | 2014-04-10 | Хеганес Аб (Пабл) | Порошковая ферромагнитная композиция и способ ее получения |
CN102227274B (zh) * | 2008-11-26 | 2013-09-18 | 霍加纳斯股份有限公司 | 粉末冶金组合物的润滑剂 |
JP5431490B2 (ja) * | 2009-09-30 | 2014-03-05 | 日立粉末冶金株式会社 | 圧粉磁心の製造方法 |
JP5482097B2 (ja) * | 2009-10-26 | 2014-04-23 | Tdk株式会社 | 軟磁性材料、並びに、圧粉磁芯及びその製造方法 |
JP2011094204A (ja) * | 2009-10-30 | 2011-05-12 | Tdk Corp | 表面処理還元鉄粉及びその製造方法、並びに、圧粉磁芯 |
JP6026889B2 (ja) * | 2010-02-18 | 2016-11-16 | ホガナス アクチボラゲット | 強磁性粉末組成物、及びその製造方法 |
JP5438669B2 (ja) * | 2010-12-28 | 2014-03-12 | 株式会社神戸製鋼所 | 圧粉磁心用鉄基軟磁性粉末および圧粉磁心 |
JP6052960B2 (ja) * | 2012-01-12 | 2016-12-27 | 株式会社神戸製鋼所 | 軟磁性鉄基粉末の製造方法 |
EP3083109B1 (en) * | 2013-12-20 | 2019-10-23 | Höganäs AB (publ) | Soft magnetic powder mix |
KR101686989B1 (ko) * | 2014-08-07 | 2016-12-19 | 주식회사 모다이노칩 | 파워 인덕터 |
KR101662206B1 (ko) | 2014-08-07 | 2016-10-06 | 주식회사 모다이노칩 | 파워 인덕터 |
KR101662209B1 (ko) | 2014-09-11 | 2016-10-06 | 주식회사 모다이노칩 | 파워 인덕터 및 그 제조 방법 |
JP6757117B2 (ja) * | 2014-10-02 | 2020-09-16 | 山陽特殊製鋼株式会社 | 軟磁性扁平粉末及びその製造方法 |
JP6702830B2 (ja) * | 2015-09-28 | 2020-06-03 | 住友電気工業株式会社 | 圧粉磁心、及びコイル部品 |
CN105895301B (zh) * | 2016-05-28 | 2017-12-29 | 深圳市固电电子有限公司 | 一种铁粉芯电感及其制备方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4776980A (en) * | 1987-03-20 | 1988-10-11 | Ruffini Robert S | Inductor insert compositions and methods |
US5063011A (en) * | 1989-06-12 | 1991-11-05 | Hoeganaes Corporation | Doubly-coated iron particles |
JPH08921B2 (ja) * | 1992-06-19 | 1996-01-10 | 株式会社神戸製鋼所 | 圧縮性と磁気特性に優れた粉末冶金用純鉄粉 |
US5595609A (en) | 1993-04-09 | 1997-01-21 | General Motors Corporation | Annealed polymer-bonded soft magnetic body |
SE9501129D0 (sv) * | 1995-03-28 | 1995-03-28 | Hoeganaes Ab | Soft magnetic anisotropic composite materials |
AU714473B2 (en) * | 1996-02-23 | 2000-01-06 | Hoganas A.B. | Phosphate coated iron powder and method for the manufacturing there of |
EP1113465A3 (en) * | 1996-05-28 | 2001-08-01 | Hitachi, Ltd. | Soft-magnetic powder composite core having particles with insulating layers |
SE9602835D0 (sv) * | 1996-07-22 | 1996-07-22 | Hoeganaes Ab | Process for the preparation of an iron-based powder |
US5982073A (en) * | 1997-12-16 | 1999-11-09 | Materials Innovation, Inc. | Low core loss, well-bonded soft magnetic parts |
US6372348B1 (en) * | 1998-11-23 | 2002-04-16 | Hoeganaes Corporation | Annealable insulated metal-based powder particles |
SE9903231D0 (sv) * | 1999-09-09 | 1999-09-09 | Hoeganaes Ab | Powder composition |
SE0100236D0 (sv) * | 2001-01-26 | 2001-01-26 | Hoeganaes Ab | Compressed soft magnetic materials |
JP4078512B2 (ja) * | 2001-04-20 | 2008-04-23 | Jfeスチール株式会社 | 高圧縮性鉄粉 |
SE0102103D0 (sv) * | 2001-06-13 | 2001-06-13 | Hoeganaes Ab | High density soft magnetic products and method for the preparation thereof |
US7153594B2 (en) * | 2002-12-23 | 2006-12-26 | Höganäs Ab | Iron-based powder |
-
2003
- 2003-09-09 SE SE0302427A patent/SE0302427D0/xx unknown
-
2004
- 2004-09-08 RU RU2006111507/02A patent/RU2311261C2/ru not_active IP Right Cessation
- 2004-09-08 WO PCT/SE2004/001296 patent/WO2005023464A1/en active Application Filing
- 2004-09-08 JP JP2006526044A patent/JP4880462B2/ja active Active
- 2004-09-08 PL PL04775401T patent/PL1663549T3/pl unknown
- 2004-09-08 ES ES04775401T patent/ES2305851T3/es active Active
- 2004-09-08 ZA ZA200601216A patent/ZA200601216B/en unknown
- 2004-09-08 CA CA2534466A patent/CA2534466C/en active Active
- 2004-09-08 BR BRPI0413853-8A patent/BRPI0413853B1/pt not_active IP Right Cessation
- 2004-09-08 CN CNB2004800252488A patent/CN100439012C/zh active Active
- 2004-09-08 EP EP04775401A patent/EP1663549B1/en active Active
- 2004-09-08 KR KR1020067004853A patent/KR101097896B1/ko active IP Right Grant
- 2004-09-08 US US10/568,952 patent/US7455905B2/en active Active
- 2004-09-08 AU AU2004270090A patent/AU2004270090B2/en not_active Ceased
- 2004-09-08 DE DE602004013606T patent/DE602004013606D1/de active Active
- 2004-09-08 AT AT04775401T patent/ATE394187T1/de active
- 2004-09-08 MX MXPA06002643 patent/MX258741B/es active IP Right Grant
- 2004-09-09 TW TW093127323A patent/TWI289487B/zh active
-
2010
- 2010-03-29 JP JP2010075052A patent/JP2010209469A/ja not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170095415A (ko) | 2013-04-19 | 2017-08-22 | 제이에프이 스틸 가부시키가이샤 | 압분 자심용 철분 및 압분 자심용 절연 피복 철분 |
US10109406B2 (en) | 2013-04-19 | 2018-10-23 | Jfe Steel Corporation | Iron powder for dust core and insulation-coated iron powder for dust core |
Also Published As
Publication number | Publication date |
---|---|
ES2305851T3 (es) | 2008-11-01 |
BRPI0413853A (pt) | 2006-10-24 |
RU2311261C2 (ru) | 2007-11-27 |
EP1663549B1 (en) | 2008-05-07 |
ZA200601216B (en) | 2007-05-30 |
JP2010209469A (ja) | 2010-09-24 |
PL1663549T3 (pl) | 2008-12-31 |
MX258741B (es) | 2008-07-14 |
US7455905B2 (en) | 2008-11-25 |
CN1845805A (zh) | 2006-10-11 |
SE0302427D0 (sv) | 2003-09-09 |
CN100439012C (zh) | 2008-12-03 |
RU2006111507A (ru) | 2006-08-27 |
CA2534466C (en) | 2010-05-04 |
WO2005023464A1 (en) | 2005-03-17 |
EP1663549A1 (en) | 2006-06-07 |
KR20060121865A (ko) | 2006-11-29 |
MXPA06002643A (es) | 2006-06-06 |
BRPI0413853B1 (pt) | 2015-06-23 |
TW200524690A (en) | 2005-08-01 |
TWI289487B (en) | 2007-11-11 |
DE602004013606D1 (ja) | 2008-06-19 |
KR101097896B1 (ko) | 2011-12-23 |
AU2004270090A1 (en) | 2005-03-17 |
JP2007505216A (ja) | 2007-03-08 |
ATE394187T1 (de) | 2008-05-15 |
AU2004270090B2 (en) | 2007-11-01 |
US20060214138A1 (en) | 2006-09-28 |
CA2534466A1 (en) | 2005-03-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2010209469A (ja) | 鉄系軟磁性粉末 | |
CA2670732C (en) | Soft magnetic powder | |
Xia et al. | The magnetic properties and microstructure of phosphated amorphous FeSiCr/silane soft magnetic composite | |
EP3083109B1 (en) | Soft magnetic powder mix | |
EP3411169B1 (en) | Iron-based powder composition | |
CN113066631A (zh) | 一种Parylene粉末在铁基软磁复合材料中的应用方法 | |
JP6912027B1 (ja) | 圧粉磁芯用鉄基軟磁性粉末、圧粉磁芯及びそれらの製造方法 | |
TWI738711B (zh) | 新穎組合物及方法 | |
WO2021199525A1 (ja) | 圧粉磁芯用鉄基軟磁性粉末、圧粉磁芯及びそれらの製造方法 | |
WO2005035171A1 (en) | Method of producing a soft magnetic composite component with high resistivity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20081224 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090428 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090709 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090716 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091028 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20091127 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100329 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20100602 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20100625 |
|
RD13 | Notification of appointment of power of sub attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7433 Effective date: 20111003 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20111003 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20111201 |
|
RD17 | Notification of extinguishment of power of sub attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7437 Effective date: 20111207 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4880462 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20141209 Year of fee payment: 3 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |