JP2016519430A - 非腐食性の軟磁性粉末 - Google Patents
非腐食性の軟磁性粉末 Download PDFInfo
- Publication number
- JP2016519430A JP2016519430A JP2016504654A JP2016504654A JP2016519430A JP 2016519430 A JP2016519430 A JP 2016519430A JP 2016504654 A JP2016504654 A JP 2016504654A JP 2016504654 A JP2016504654 A JP 2016504654A JP 2016519430 A JP2016519430 A JP 2016519430A
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- Prior art keywords
- soft magnetic
- resin
- magnetic powder
- alkyl
- independently
- 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
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- 239000006247 magnetic powder Substances 0.000 title claims abstract description 66
- 230000009972 noncorrosive effect Effects 0.000 title description 3
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 36
- 150000001875 compounds Chemical class 0.000 claims abstract description 33
- 239000003112 inhibitor Substances 0.000 claims abstract description 28
- -1 carboxylate salt Chemical class 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000696 magnetic material Substances 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 19
- 125000003161 (C1-C6) alkylene group Chemical group 0.000 claims abstract description 8
- 125000003601 C2-C6 alkynyl group Chemical group 0.000 claims abstract description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 5
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 5
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 claims abstract description 4
- 125000004430 oxygen atom Chemical group O* 0.000 claims abstract description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 47
- 229920005989 resin Polymers 0.000 claims description 36
- 239000011347 resin Substances 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 18
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 6
- SNOOUWRIMMFWNE-UHFFFAOYSA-M sodium;6-[(3,4,5-trimethoxybenzoyl)amino]hexanoate Chemical compound [Na+].COC1=CC(C(=O)NCCCCCC([O-])=O)=CC(OC)=C1OC SNOOUWRIMMFWNE-UHFFFAOYSA-M 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
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- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 3
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- 239000005711 Benzoic acid Substances 0.000 claims description 2
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- 239000004695 Polyether sulfone Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 2
- 229920003180 amino resin Polymers 0.000 claims description 2
- 235000010233 benzoic acid Nutrition 0.000 claims description 2
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 claims description 2
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- 159000000000 sodium salts Chemical group 0.000 claims description 2
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- 238000009413 insulation Methods 0.000 abstract description 7
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 abstract 3
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- 239000000243 solution Substances 0.000 description 31
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 14
- 230000035699 permeability Effects 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 11
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- 239000002904 solvent Substances 0.000 description 11
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 8
- 239000000047 product Substances 0.000 description 8
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- 239000008358 core component Substances 0.000 description 7
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- 238000012360 testing method Methods 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000004610 Internal Lubricant Substances 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
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- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
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- 150000007942 carboxylates Chemical class 0.000 description 3
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
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- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M isovalerate Chemical compound CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- SZINCDDYCOIOJQ-UHFFFAOYSA-L manganese(2+);octadecanoate Chemical compound [Mn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O SZINCDDYCOIOJQ-UHFFFAOYSA-L 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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
- 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
-
- 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
-
- 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
- H01F1/42—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of organic or organo-metallic materials, e.g. graphene
-
- 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
-
- 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
-
- 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
-
- 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
- H01F1/26—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 by macromolecular organic substances
Abstract
Description
(a)は、一般式(I)を有するカルボン酸、又はカルボン酸塩であり、
R2〜R6は、それぞれに独立して、H、OH、−X−COOH、C1〜C6アルキル、C2〜C6−アルケニル、C2〜C6アルキニル、C3〜C7シクロアルキル、C6〜C12アリール、COOR7、OR8であり、
若しくはR2〜R6の2つ隣接の基は一緒に1つの環を形成し、
Xは単結合又はC1〜C6アルキレンであり、
R7及びR8はC1〜C20アルキルであり、
(b)は、一般式(II)の化合物であり、
(R9-O-)(R10-O-)(R11-O-)PO (II)
式中、R9〜R11はそれぞれに独立して、OH及びNH2から選択される1つ以上の基と置換若しくは非置換のC1〜C20アルキル、C2〜C20−アルケニル、C2〜C6アルキニル、C3〜C7シクロアルキル、C6〜C12アリールを示し、又は、
R9〜R11はそれぞれに独立して、500〜30000g/molの分子量MWを有するポリジオール部分であり、前記ポリジオール部分は任意にC1〜C20アルキルにより端部に及び/又はC1〜C20アルキレンによりPと結合するO原子との結合部にキャップされ、又は、
R10、R11はそれぞれに独立してHである。
(a)1種の絶縁処理化合物を含む溶液で軟磁性材料の粒子を被覆するステップと、
(b)1種の有機溶媒に溶解される抑制剤を含む溶液で前記絶縁された軟磁性材料の粒子を被覆するステップと、
(c)1種の樹脂で前記絶縁された軟磁性材料の粒子を被覆するステップと、
を含む。
この実施例において、2.2kgのカルボニル鉄粉末(CIP)を、プラネタリー型ミキサーに設置された1.2Lの被覆されたブリキビーカーに加えた。N2の通過により不活化した後、380mLのアセトン、4.2gの85%のH3PO4及び抑制剤を含む溶液を添加する。各溶液の成分及び結果は表1に示す。
溶媒(20mL、例えば、アセトン、メチルエチルケトン)中でのエポキシ樹脂(2.8g)の溶解及び硬化剤としての0.14g(ジシアンジアミド)Dyhard 100SH(Firma=Alzchem)の添加により、被覆されたCIP粉末(100g)をエポキシ樹脂(Epikote 1004、Momentive)と混合した。ガラスビーカーで、溶解ミキサー(IKA、RW20 D2M、1000R/min)を用いて、被覆されたCIPを前記エポキシ製剤と共に撹拌した。混合後、前記スラリーをアルミニウムプレートに流し込んだ。その後、前記アルミニウムプレートをドラフトに8時間放置した。圧縮できる状態の粉末を製造するために、得られた乾燥CIPエポキシプレートを刃研磨機(Kinematica、Microtron MB550)で10秒粉砕した。
6.8g(±0.1g)の前記圧縮できる状態の粉末をスチール金型(リングタイプ、外径は20.1mmであり、内径は12.5mmであり、得られる高さは約5〜6mmである)に入れ、440MPaの下で数秒間成形した。リングの正確な質量及び高さにより、リングコアの密度を計算した。透磁率及び抵抗率を決定するために、独立した0.85mmの銅線(Isodraht、Multogan 2000MH 62)で、該リングコアを配線(20回旋)した。
リングコアの透磁率の測定にLRCメーター(E4980A Agilent)を使用した。全ての測定は、100kHzで0V DCバイアスで行った。該リングコアに10mAのテストAC電流を適用した。
用いた腐食テストは、85℃及び85%の相対湿度で、標準の人工気候室テストと比較して加速試験である。それは、供試物を直接に水に入れるように、加速された腐食をもたらす。
カルボニル鉄粉末の処理及び圧縮されたサンプルの形成の後、透磁率、抵抗率及び腐食特徴を上記のように決定した。
Claims (13)
- 軟磁性材料の被覆された粒子を含む軟磁性粉末であって、その被膜は1種の絶縁処理化合物及び1種の抑制剤を含み、前記抑制剤は(a)及び/又は(b)であり、
(a)は、一般式(I)を有するカルボン酸、又はカルボン酸塩であり、
R2〜R6は、それぞれに独立して、H、OH、−X−COOH、C1〜C6アルキル、C2〜C6−アルケニル、C2〜C6アルキニル、C3〜C7シクロアルキル、C6〜C12アリール、COOR7、OR8であり、
若しくはR2〜R6の2つ隣接の基は一緒に1つの環を形成し、
Xは単結合又はC1〜C6アルキレンであり、
R7及びR8はC1〜C20アルキルであり、
(b)は、一般式(II)の化合物であり、
(R9-O-)(R10-O-)(R11-O-)PO (II)
式中、R9〜R11はそれぞれに独立して、OH及びNH2から選択される1つ以上の基と置換若しくは非置換のC1〜C20アルキル、C2〜C20−アルケニル、C2〜C6アルキニル、C3〜C7シクロアルキル、C6〜C12アリールを示し、又は、
R9〜R11はそれぞれに独立して、500〜30000g/molの分子量MWを有するポリジオール部分であり、前記ポリジオール部分は任意にC1〜C20アルキルにより端部に及び/又はC1〜C20アルキレンによりPと結合するO原子との結合部にキャップされ、又は、
R10及びR11はそれぞれに独立してHである、
軟磁性粉末。 - 前記絶縁処理化合物が、リン酸塩を含む化合物である請求項1に記載の軟磁性粉末。
- 前記抑制剤が、安息香酸のナトリウム塩、ヒドロキシル基であるR2〜R6基の少なくとも1つを有する誘導体、又はこれらの混合物である請求項1又は2に記載の軟磁性粉末。
- 少なくとも1つのヒドロキシル基が、前記カルボン酸基に隣接する請求項3に記載の軟磁性粉末。
- 前記ポリジオール部分が、ポリエチレングリコール、ポリプロピレングリコール又はポリエチレン/ポリプロピレングリコールである請求項1から4のいずれか一項に記載の軟磁性粉末。
- 前記軟磁性材料が、カルボニル鉄粉末である請求項1から5のいずれか一項に記載の軟磁性粉末。
- 前記被膜が、1種の樹脂をさらに含む請求項1から6のいずれか一項に記載の軟磁性粉末。
- 前記樹脂が、エポキシ樹脂、ウレタン樹脂、ポリウレタン樹脂、フェノール樹脂、アミノ樹脂、シリコン樹脂、ポリアミド樹脂、ポリイミド樹脂、アクリル樹脂、ポリエステル樹脂、ポリカーボネート樹脂、ノルボルネン樹脂、スチレン樹脂、ポリエーテルスルホン樹脂、シリコン樹脂、ポリシロキサン樹脂、フッ素樹脂、ポリブタジエン樹脂、ビニルエーテル樹脂、ポリ塩化ビニル樹脂又はビニルエステル樹脂から選択される請求項7に記載の軟磁性粉末。
- 請求項1から8のいずれか一項に記載の軟磁性粉末の製造プロセスであって、
(a)1種の絶縁処理化合物を含む溶液で軟磁性材料の粒子を被覆するステップと、
(b)1種の有機溶媒に溶解された抑制剤を含む溶液で前記絶縁された軟磁性材料の粒子を被覆するステップと、
(c)1種の樹脂で前記絶縁された軟磁性材料の粒子を被覆するステップと、
を含み、
全ての被膜はそれぞれのステップ(a)〜(c)で施され、又は、ステップ(a)及びステップ(b)若しくはステップ(b)及びステップ(c)は1つのステップで行われ、並びに、軟磁性コアの被覆に用いられる任意の溶液が前記溶液の総体積に基づいて10体積%以下の水を含む、プロセス。 - 前記抑制剤が(a)及び/又は(b)であり、
(a)は、一般式(I)を有するカルボン酸、又はカルボン酸塩であり、
R2〜R6は、それぞれに独立して、H、OH、−X−COOH、C1〜C6アルキル、C2〜C6−アルケニル、C2〜C6アルキニル、C3〜C7シクロアルキル、C6〜C12アリール、COOR7、OR8であり、
若しくはR2〜R6の2つ隣接の基は一緒に1つの環を形成し、
Xは単結合又はC1〜C6アルキレンであり、
R7及びR8はC1〜C20アルキルであり、
(b)は、一般式(II)の化合物であり、
(R9-O-)(R10-O-)(R11-O-)PO (II)
式中、R9〜R11はそれぞれに独立して、OH及びNH2から選択される1つ以上の基と置換若しくは非置換のC1〜C20アルキル、C2〜C20−アルケニル、C2〜C6アルキニル、C3〜C7シクロアルキル、C6〜C12アリールを示し、又は、
R9〜R11はそれぞれに独立して、500〜30000g/molの分子量MWを有するポリジオール部分であり、前記ポリジオール部分は任意にC1〜C20アルキルにより端部に及び/又はC1〜C20アルキレンによりPと結合するO原子との結合部にキャップされ、又は、
R10及びR11はそれぞれに独立してHである、
請求項9に記載のプロセス。 - 前記絶縁処理化合物がリン酸塩を含む化合物である請求項9又は10に記載のプロセス。
- 前記軟磁性材料がカルボニル鉄粉末を含む請求項9から11のいずれか一項に記載のプロセス。
- 請求項1から8のいずれか一項に記載の軟磁性粉末を含む電子部品。
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PCT/EP2014/056034 WO2014154737A1 (en) | 2013-03-28 | 2014-03-26 | Non-corrosive soft-magnetic powder |
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EP (2) | EP2783774A1 (ja) |
JP (1) | JP6498179B2 (ja) |
KR (1) | KR102249376B1 (ja) |
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Cited By (3)
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WO2018097292A1 (ja) * | 2016-11-28 | 2018-05-31 | ソマール株式会社 | 樹脂組成物、樹脂組成物の製造方法、樹脂組成物成形体及び樹脂組成物成形体の製造方法 |
WO2018117036A1 (ja) * | 2016-12-19 | 2018-06-28 | 山陽特殊製鋼株式会社 | 軟磁性扁平粉末 |
JP7190527B2 (ja) | 2020-10-19 | 2022-12-15 | ▲創▼一科技(▲長▼沙)有限公司 | 金属粉末コアからなる集積チップインダクタの製造方法 |
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US10699842B2 (en) * | 2014-09-02 | 2020-06-30 | Apple Inc. | Magnetically doped adhesive for enhancing magnetic coupling |
KR102488143B1 (ko) * | 2015-05-27 | 2023-01-16 | 바스프 에스이 | 자성 코어를 제조하기 위한 조성물 및 상기 조성물의 제조 방법 |
JP6552283B2 (ja) * | 2015-06-02 | 2019-07-31 | Dowaエレクトロニクス株式会社 | 磁性コンパウンド、アンテナおよび電子機器 |
CN106623906A (zh) * | 2016-11-16 | 2017-05-10 | 马鞍山市恒欣减压器制造有限公司 | 一种抗拉强度高的铁基粉末冶金自润滑cng发动机气门座圈及其制作方法 |
CN115851011B (zh) * | 2022-11-28 | 2023-07-25 | 中铝郑州有色金属研究院有限公司 | 电磁屏蔽涂料及其应用 |
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CN110088854A (zh) * | 2016-12-19 | 2019-08-02 | 山阳特殊制钢株式会社 | 软磁性扁平粉末 |
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JP7190527B2 (ja) | 2020-10-19 | 2022-12-15 | ▲創▼一科技(▲長▼沙)有限公司 | 金属粉末コアからなる集積チップインダクタの製造方法 |
Also Published As
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WO2014154737A1 (en) | 2014-10-02 |
US11094437B2 (en) | 2021-08-17 |
EP2978549B1 (en) | 2019-05-22 |
US20160055947A1 (en) | 2016-02-25 |
KR20150136489A (ko) | 2015-12-07 |
TW201443933A (zh) | 2014-11-16 |
EP2978549A1 (en) | 2016-02-03 |
EP2783774A1 (en) | 2014-10-01 |
KR102249376B1 (ko) | 2021-05-07 |
JP6498179B2 (ja) | 2019-04-10 |
CN105188991A (zh) | 2015-12-23 |
TWI604473B (zh) | 2017-11-01 |
CN105188991B (zh) | 2017-09-12 |
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