JPS5931005A - Composite soft magnetic material - Google Patents
Composite soft magnetic materialInfo
- Publication number
- JPS5931005A JPS5931005A JP57141360A JP14136082A JPS5931005A JP S5931005 A JPS5931005 A JP S5931005A JP 57141360 A JP57141360 A JP 57141360A JP 14136082 A JP14136082 A JP 14136082A JP S5931005 A JPS5931005 A JP S5931005A
- Authority
- JP
- Japan
- Prior art keywords
- soft magnetic
- magnetic material
- mean
- magnetic
- composite soft
- 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.)
- Pending
Links
- 239000000696 magnetic material Substances 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000011230 binding agent Substances 0.000 claims description 6
- 230000035699 permeability Effects 0.000 abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 13
- 239000008187 granular material Substances 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 235000000396 iron Nutrition 0.000 abstract 1
- 239000006249 magnetic particle Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 229910000889 permalloy Inorganic materials 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001017 Alperm Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、軟磁性材料に係わるものであり、粒状、フレ
ーク状及びフィラメント状軟磁性体を結合材で結合した
ことを特徴とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soft magnetic material, and is characterized in that granular, flake-like, and filament-like soft magnetic materials are bonded together using a binder.
周知の通り軟磁性材料は、ソリッドと複合材料との二種
に大別できる。ソリッド型は、金属９合金又は酸化物の
焼結体からなり、軟磁性体の中に結合材を含まないもの
である。一方複合型は、軟磁性材料が小さいため、結合
材でそれらを固めないとヨークの形状をなさないもので
ある。As is well known, soft magnetic materials can be roughly divided into two types: solid materials and composite materials. The solid type is made of a sintered body of metal 9 alloy or oxide, and does not contain a binder in the soft magnetic material. On the other hand, in the composite type, since the soft magnetic materials are small, the yoke shape cannot be formed unless they are hardened with a binding material.
従来の複合軟磁性材料は、純鉄、センダスト。Conventional composite soft magnetic materials include pure iron and Sendust.
及びパーマロイ等の粉末をガラス等の無機結合材又は樹
脂等で結合したものである。その磁気特性の特徴は
１、 飽和磁束密度が、磁粉の体積％に比例、２、透磁
率は、はぼ空間部の割合の逆数で、ソリッドの百分の１
から十分の１のオーダーで著しく小さい。It is made by bonding powders such as permalloy and permalloy with an inorganic binder such as glass or resin. The characteristics of its magnetic properties are 1. The saturation magnetic flux density is proportional to the volume % of magnetic particles. 2. The magnetic permeability is the reciprocal of the proportion of hollow space, which is 1/100 of that of a solid.
It is extremely small, on the order of one-tenth of that.
五 透磁率は印加磁場の影響をほとんど受けず一定であ
る。5. Magnetic permeability is almost unaffected by the applied magnetic field and remains constant.
４、 透磁率が小さいため、磁気漏洩が大、５ 磁粉の
表面は、絶縁処理されているため電気抵抗は極めて大き
く、渦電流損はソリッド型と比較し著しく小さい。4. Magnetic leakage is large due to low magnetic permeability. 5. The surface of magnetic particles is insulated, so electrical resistance is extremely high, and eddy current loss is significantly smaller than that of solid types.
等である。このようなことから、高周波用磁心にもっば
ら用いられている。etc. For this reason, it is widely used in high-frequency magnetic cores.
筆者は、これら複合軟磁性材料の磁気特性を研究する過
程で、複合軟磁性材料の構造を磁粉がその中で均一に分
散しているとした構造モデルから計算した透磁率と実測
値との間に大きな差があることを見いだした。In the process of researching the magnetic properties of these composite soft magnetic materials, the author found that the difference between the magnetic permeability calculated from a structural model that assumes that magnetic particles are uniformly dispersed within the composite soft magnetic material and the actual value was determined. found that there was a large difference in
磁粉の均一分散を前提とした構造モデルによれば、複合
軟磁性材料の透磁率μＣは
ｇ＝空間部の割合
μＬ＝磁性材料の透磁率
で、μｊ＞＞１であるので、
μｃ−４−−
となる。According to the structural model assuming uniform dispersion of magnetic particles, the magnetic permeability μC of the composite soft magnetic material is g = the proportion of the space μL = the magnetic permeability of the magnetic material, and μj >> 1, so μc-4- − becomes.
一方、純鉄粉を５０体積％を含む複合軟磁性材料を試作
した。透磁率の計算値と実測値を第１表に示す。On the other hand, a composite soft magnetic material containing 50% by volume of pure iron powder was prototyped. Calculated and measured values of magnetic permeability are shown in Table 1.
第１表
この差異の原因を追求した結果、理論と実測値との差は
、磁粉の分散がモデルの様に均一でなく磁粉が連なって
いることを見い出した。この現象を更に正しく理解する
ために、フィラメント状軟磁性体を用いて複合軟磁性材
料を作成し、透磁率を測定した結果、磁粉の複合軟磁性
材料では達せられなかった高透磁率を得ることができた
。例えば純鉄フィラメント（長さｔ／直径ｄ＝１ｎｏ）
を５０体檀％含む複合軟磁性材料の透磁率は９００であ
った。Table 1 As a result of pursuing the cause of this difference, it was discovered that the difference between the theoretical and measured values was due to the dispersion of the magnetic particles not being uniform as in the model, but instead being continuous. In order to understand this phenomenon more correctly, we created a composite soft magnetic material using filament-like soft magnetic material and measured its magnetic permeability. As a result, we obtained a high magnetic permeability that could not be achieved with composite soft magnetic materials made of magnetic powder. was completed. For example, pure iron filament (length t/diameter d=1no)
The magnetic permeability of the composite soft magnetic material containing 50% of C was 900.
しかし、軟磁性材料をフィラメント状にするのは、大変
加工工数がかかり、透磁率は高いがコストも高くなる欠
点を有している。However, forming a soft magnetic material into a filament requires a large number of processing steps, and although the magnetic permeability is high, the cost is also high.
本発明の目的は、粒状、フレーク状、フィラメント状の
軟磁性体を混合して用いることにより、透磁率が高く、
シかもコストの低い複合材料を工業的に実用化すること
にある。The purpose of the present invention is to achieve high magnetic permeability by using a mixture of granular, flake, and filamentous soft magnetic materials.
Another goal is to commercialize low-cost composite materials on an industrial scale.
以下本発明について実施例をあげ具体的に説明する。The present invention will be specifically described below with reference to Examples.
粒状純鉄粉は、平均粒径１００μを、フレーク状純鉄粉
は平均厚みが１０μ、平均直径（夕゛円の長径と短径の
平均値）が１０００μを、フィラメント状純鉄は平均直
径が１００μ、平均長さ力５１０闘を用いた。これらを
秤量し、エポキシ樹脂と混練した後１トン／−の圧力で
圧縮成形し、１５０℃×２時間キュアー処理し、次にφ
４５×φ５！＋ｓ＋ｕｎのリングに挽き出し、磁気測定
を行なった。代表的な結果を第２表に示す。コストは、
軟磁性体とエホ゛キシの材料代、混線式、プレス代及び
キュアー化の合計を試料ｍｉを１．０として表わしたも
のである。Granular pure iron powder has an average particle size of 100μ, flake-like pure iron powder has an average thickness of 10μ, and average diameter (average value of the major axis and minor axis of the circle) of 1000μ, and filament-like pure iron has an average diameter of 100μ. 100 μ, average length force 510 mm was used. These were weighed, kneaded with epoxy resin, compression molded at a pressure of 1 ton/-, cured at 150°C for 2 hours, and then φ
45×φ5! It was ground into a +s+un ring and magnetic measurements were performed. Typical results are shown in Table 2. The cost is
The total cost of materials for soft magnetic material and epoxy, cross-wire system, pressing cost, and curing is expressed assuming that sample mi is 1.0.
第２表
第２表から、粒状にフレーク状を添加すると最大透磁率
とコスト比は大きくなる。フィラメント状の添加は、添
加量の増加とともに最大透磁率は増大スル力、コストバ
ーフオーヤンス（Ａ／Ｂ ）は２０％をピークに低下す
る。粒状、フレーク状及びフィラメント状の３種混合は
、フィラメント状が低い％の時Ａ ／ Ｂは大きい。Table 2 From Table 2, when flakes are added to granules, the maximum permeability and cost ratio increase. When adding filaments, as the amount added increases, the maximum magnetic permeability increases, and the cost balance (A/B) decreases from a peak of 20%. For a three-type mixture of granules, flakes, and filaments, A/B is large when the percentage of filaments is low.
本発明においてフレーク状とは塊状を圧延又はプレスし
て偏平な形状Ｇこしたものを指す。フィラメント状とは
、直径が１ ｍｍ以下の細線とその切断線をざす。軟磁
性体とは、保磁力が小さくしかも飽和磁束密度の大きい
物質をさす。例えば軟鋼。In the present invention, the term "flake shape" refers to a mass obtained by rolling or pressing into a flat shape G. Filamentary refers to a thin wire with a diameter of 1 mm or less and its cutting line. A soft magnetic material refers to a material that has a low coercive force and a high saturation magnetic flux density. For example, mild steel.
ｉ素ｔｉｉ、パーマロイ、アルフェル、パーメンジュー
ル等である。結合材は、樹脂、無機物からなる。樹脂は
、ナイロン、ポリエチレン、ポリエステル、フェノール
、塩化ビニル、アクリル等いずれも可である。無機物と
してはガラスが適している又結合材の量は、体積％で［
１５，１，２，５゜ｉｎ、２０，４０，６０．８０％を
実験した。透磁率は１〜２％付近がピークを示す。又１
％未満は成形性が悪くなり、０．５％は特殊な用途に限
定される。結合材の量は本発明の目的から限定されるべ
きものではない。These include permalloy, alfer, permendur, etc. The binding material is made of resin and inorganic material. The resin may be nylon, polyethylene, polyester, phenol, vinyl chloride, acrylic, or the like. Glass is suitable as an inorganic substance, and the amount of binder is expressed in volume % [
Experiments were conducted at 15, 1, 2, and 5° in, 20, 40, and 60.80%. The magnetic permeability peaks around 1 to 2%. Again 1
If it is less than 0.5%, moldability will be poor, and if it is 0.5%, it will be limited to special uses. The amount of binder should not be limited for purposes of the present invention.
本発明の目的は
１、 粒状を用いたものより高い透磁率の複合軟磁性材
料を低コストでつくりだすこと。The objectives of the present invention are: 1. To produce a composite soft magnetic material with a higher magnetic permeability than that using granules at a low cost.
２ コストパーフォーマンスの高い複合軟磁性材料をつ
くり出すこと。2. To create a composite soft magnetic material with high cost performance.
であり、以上のことから、その目的が達せられたことが
判かる。From the above, it can be seen that the objective was achieved.
本発明になる複合軟磁性材料の用途は、比較的形状が複
雑なヨーク、寸法精度が高いヨークなどに適しており、
モーター、タコゼネレーター、スピーカー、ヘッド等応
用範囲は広い。又インサート成形、アウトサート成形、
多色成形等により加工コストを著しく低下させることが
できる。The composite soft magnetic material of the present invention is suitable for yokes with relatively complex shapes, yokes with high dimensional accuracy, etc.
It has a wide range of applications such as motors, tacho generators, speakers, heads, etc. Also insert molding, outsert molding,
Processing costs can be significantly reduced by multicolor molding, etc.
以 上that's all
Claims (1)
なくとも２種を混合し、結合材で結合したことを特徴と
する複合軟磁性材料。A composite soft magnetic material characterized in that at least two of granular, flake, and filamentary soft magnetic materials are mixed and bonded together with a binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57141360A JPS5931005A (en) | 1982-08-13 | 1982-08-13 | Composite soft magnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57141360A JPS5931005A (en) | 1982-08-13 | 1982-08-13 | Composite soft magnetic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5931005A true JPS5931005A (en) | 1984-02-18 |
Family
ID=15290166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57141360A Pending JPS5931005A (en) | 1982-08-13 | 1982-08-13 | Composite soft magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931005A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0921534A4 (en) * | 1996-08-21 | 2000-04-26 | Tdk Corp | Magnetic powder and magnetic molded article |
| JP2013201375A (en) * | 2012-03-26 | 2013-10-03 | Tdk Corp | Planar coil element and manufacturing method therefor |
-
1982
- 1982-08-13 JP JP57141360A patent/JPS5931005A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0921534A4 (en) * | 1996-08-21 | 2000-04-26 | Tdk Corp | Magnetic powder and magnetic molded article |
| JP2013201375A (en) * | 2012-03-26 | 2013-10-03 | Tdk Corp | Planar coil element and manufacturing method therefor |
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