JPH0412011B2 - - Google Patents
Info
- Publication number
- JPH0412011B2 JPH0412011B2 JP15821882A JP15821882A JPH0412011B2 JP H0412011 B2 JPH0412011 B2 JP H0412011B2 JP 15821882 A JP15821882 A JP 15821882A JP 15821882 A JP15821882 A JP 15821882A JP H0412011 B2 JPH0412011 B2 JP H0412011B2
- Authority
- JP
- Japan
- Prior art keywords
- ferrite
- composite ferrite
- composite
- fiber
- powder
- 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.)
- Expired
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 54
- 239000002131 composite material Substances 0.000 claims description 38
- 239000000835 fiber Substances 0.000 claims description 23
- 239000004744 fabric Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 239000000696 magnetic material Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000004033 plastic 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
- H01F1/34—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 non-metallic substances, e.g. ferrites
- H01F1/36—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 non-metallic substances, e.g. ferrites in the form of particles
- H01F1/37—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 non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
- H01F1/375—Flexible bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Description
【発明の詳細な説明】
本発明は電波吸収材、電磁シールド材、トラン
ス等の磁心やその他の磁性体部品として用いるの
に適した複合フエライト繊維布を用いた磁性体材
料に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic material using a composite ferrite fiber cloth suitable for use as a radio wave absorbing material, an electromagnetic shielding material, a magnetic core of a transformer, or other magnetic components.
トランス等の磁心、アンテナ、電波吸収体とし
て、また磁石やモータ用セグメント等として従来
よりフエライト焼結体が利用されている。しかし
ながら、フエライト焼結体には、脆弱性、加工性
の悪さ等の問題がある。それらを改善する目的で
上記の製品としてゴム磁石に代表される如くゴ
ム、プラスチツク等の高分子材料とフエライト粉
末とを混合した複合フエライトが強靭性があり加
工性が良好で優れた機械的特性を有するため一部
実用化されている。 Ferrite sintered bodies have conventionally been used as magnetic cores of transformers, antennas, radio wave absorbers, and as segments for magnets and motors. However, ferrite sintered bodies have problems such as brittleness and poor workability. In order to improve these problems, composite ferrite, which is a mixture of polymeric materials such as rubber and plastic and ferrite powder, as typified by rubber magnets, has strong toughness, good processability, and excellent mechanical properties. It has been put into practical use to some extent.
しかし、この場合にも問題がある。すなわち、
この種の複合フエライトは、一般にフエライト粉
末と有機高分子材料との混合物を押出成形、射出
成形、コンプレツシヨン成形等により種々の形状
に成形される。フエライト焼結体と比較すると強
靭性があり、加工性が良好であり、優れた機械的
特性を有しているが、ゴム、高分子材料それ自体
の機械的特性と比較すると無機材料であるフエラ
イト粉末を多く混合する結果、本来の性質から大
幅に劣化した特性を示す。 However, there are also problems in this case. That is,
This type of composite ferrite is generally formed into various shapes by extrusion molding, injection molding, compression molding, etc. from a mixture of ferrite powder and an organic polymer material. Ferrite, which is an inorganic material, has higher toughness, better workability, and better mechanical properties than sintered ferrite, but compared to the mechanical properties of rubber and polymer materials themselves, ferrite is an inorganic material. As a result of mixing a large amount of powder, the properties show a significant deterioration from the original properties.
本発明は、従来の複合フエライトのこれらの欠
点を改善するものであり、複合フエライトを繊維
化して布状に織ることにより、優れた柔軟性と強
度とを持たせた磁性体材料を提供しようとするも
のである。 The present invention aims to improve these drawbacks of conventional composite ferrite, and to provide a magnetic material with excellent flexibility and strength by fiberizing composite ferrite and weaving it into a cloth. It is something to do.
以下、本発明に係る磁性体材料の実施例を図面
に従つて説明する。 Examples of the magnetic material according to the present invention will be described below with reference to the drawings.
まず、本発明で用いる複合フエライト繊維につ
いて説明する。第１図の如く、平均粒子径0.3〜
20μｍのフエライト粉末を接着剤等の高分子材料
に体積混合比率0.2〜0.8の範囲で混合した液状複
合フエライト材を厚み50μｍ以下の例えばポリエ
ステル等の高分子材料フイルム１に100μｍ以下
に塗布して複合フエライト層２を形成し乾燥さ
せ、該複合フエライト層２におけるフエライト粉
末の体積混合比率を0.2〜0.8に設定してシート状
複合フエライト３を得て、それから、シート状複
合フエライト３を第２図のように幅100μｍ以下
にスリツト状に切断することにより、フイルム１
及び複合フエライト層２がリボン状となつた複合
フエライト繊維４が得られる。 First, the composite ferrite fiber used in the present invention will be explained. As shown in Figure 1, the average particle size is 0.3~
A liquid composite ferrite material prepared by mixing 20 μm ferrite powder with a polymeric material such as an adhesive at a volume mixing ratio in the range of 0.2 to 0.8 is applied onto a polymeric material film 1 such as polyester with a thickness of 50 μm or less to a thickness of 100 μm or less to form a composite. A ferrite layer 2 is formed and dried, and the volume mixing ratio of the ferrite powder in the composite ferrite layer 2 is set to 0.2 to 0.8 to obtain a sheet-like composite ferrite 3. Then, the sheet-like composite ferrite 3 is prepared as shown in FIG. By cutting film 1 into slits with a width of 100 μm or less,
A composite ferrite fiber 4 in which the composite ferrite layer 2 is ribbon-shaped is obtained.
第３図に実施例として示す磁性体材料は、その
複合フエライト繊維４を織つて複合フエライト繊
維１０を作成し、これを複数枚積層したものであ
る。 The magnetic material shown as an example in FIG. 3 is obtained by weaving the composite ferrite fibers 4 to create a composite ferrite fiber 10, and laminating a plurality of composite ferrite fibers 10.
上記実施例によれば、フエライト粉末の体積比
率を0.2〜0.8とした複合フエライト層２によつて
充分な磁気特性が得られる。また、複合フエライ
ト繊維布となつているため、軽量で柔軟性を持ち
かつ充分な強度を有する。さらに、複雑な形状に
なじませることが可能である。さらに、樹脂とフ
エライト粉末とを混合して成形物となす従来の複
合フエライトにおいては分散性の問題が大きく磁
気特性のばらつきによる劣化がおきるが、実施例
の構成によれば複合フエライト繊維布を用いてい
るので繊維の織り方によつて非常に均一な製品を
作ることができる。 According to the above embodiment, sufficient magnetic properties can be obtained by the composite ferrite layer 2 in which the volume ratio of ferrite powder is 0.2 to 0.8. In addition, since it is made of composite ferrite fiber cloth, it is lightweight, flexible, and has sufficient strength. Furthermore, it is possible to adapt it to complex shapes. Furthermore, conventional composite ferrite, which is made by mixing resin and ferrite powder to form a molded product, has problems with dispersibility and deteriorates due to variations in magnetic properties, but according to the configuration of the example, composite ferrite fiber cloth is used. Because of this, very uniform products can be made depending on the way the fibers are woven.
複合フエライト繊維布として、前記複合フエラ
イト繊維４を、ナイロン繊維、アクリル繊維、ポ
リエステル繊維等の合成繊維を芯とした糸により
合わせ巻きつけて混紡したものを用いて織つた構
成としてもよい。この場合には、複合フエライト
繊維布は、強靭な合成繊維の混紡であるため、非
常に強度の優れた磁性体材料となる。 The composite ferrite fiber cloth may be woven using a blend of the composite ferrite fibers 4 wound around a core of synthetic fibers such as nylon fibers, acrylic fibers, and polyester fibers. In this case, since the composite ferrite fiber cloth is a blend of strong synthetic fibers, it becomes a magnetic material with extremely high strength.
さらに、前記複合フエライト繊維布を複数枚積
層するのに、フエライト粉末を含浸させた接着剤
又は樹脂を用いてシート状に形成すれば、さらに
磁気特性を良好にすることができる。この場合は
形状の定まつた構造体として用いるのに適してい
る。 Furthermore, if a plurality of composite ferrite fiber cloths are laminated into a sheet using an adhesive or resin impregnated with ferrite powder, the magnetic properties can be further improved. In this case, it is suitable for use as a structure with a fixed shape.
以上説明したように、本発明によれば、複合フ
エライトを繊維化して布状に織ることにより、優
れた柔軟性と強度とを持たせた磁性体材料を得る
ことができる。 As explained above, according to the present invention, a magnetic material having excellent flexibility and strength can be obtained by fiberizing composite ferrite and weaving it into a cloth.
本発明の用途としては、電波吸収体シート、構
造体型電波吸収体、インダクタンス調整シート
（カラーテレビ偏向ヨークの色補正等のための磁
気補正シート）、電磁シールド材、トランス磁心、
インピーダーケース、フエライト磁石布、電子レ
ンジ用ガスケツト等が挙げられる。 Applications of the present invention include radio wave absorber sheets, structured radio wave absorbers, inductance adjustment sheets (magnetic correction sheets for color correction of color TV deflection yokes, etc.), electromagnetic shielding materials, transformer magnetic cores,
Examples include impeder cases, ferrite magnet cloth, gaskets for microwave ovens, etc.
第１図は本発明で用いる複合フエライト繊維を
作成するためのシート状複合フエライトを示す斜
視図、第２図は複合フエライト繊維を示す斜視
図、第３図は本発明に係る磁性体材料の実施例を
示す斜視図である。
１……高分子材料フイルム、２……複合フエラ
イト層、３……シート状複合フエライト、４……
複合フエライト繊維、１０……複合フエライト繊
維布。
FIG. 1 is a perspective view showing a sheet-like composite ferrite for producing the composite ferrite fiber used in the present invention, FIG. 2 is a perspective view showing the composite ferrite fiber, and FIG. 3 is an implementation of the magnetic material according to the present invention. It is a perspective view showing an example. 1... Polymer material film, 2... Composite ferrite layer, 3... Sheet-like composite ferrite, 4...
Composite ferrite fiber, 10... Composite ferrite fiber cloth.
Claims (1)
均粒子径0.3〜20μｍのフエライト粉末と高分子材
料との混合物からなりフエライト粉末の体積混合
比率を0.2〜0.8に設定した厚さ100μｍ以下の複合
フエライト層を設け、これを幅100μｍ以下に形
成した複合フエライト繊維を織つた複合フエライ
ト繊維布、又は前記複合フエライト繊維を合成繊
維と混紡して織つた複合フエライト繊維布を複数
枚積層したことを特徴とする磁性体材料。 ２ 前記複合フエライト繊維布がフエライト粉末
を含浸した接着剤又は樹脂で複数枚積層一体化さ
れている特許請求の範囲第１項記載の磁性体材
料。[Claims] 1. A polymer material film with a thickness of 50 μm or less, which is made of a mixture of ferrite powder with an average particle size of 0.3 to 20 μm and a polymer material, and the volume mixing ratio of the ferrite powder is set to 0.2 to 0.8. A composite ferrite fiber cloth woven with a composite ferrite fiber having a composite ferrite layer of 100 μm or less and formed into a width of 100 μm or less, or a composite ferrite fiber cloth woven by blending the composite ferrite fiber with synthetic fiber and laminating multiple sheets. A magnetic material characterized by: 2. The magnetic material according to claim 1, wherein a plurality of composite ferrite fiber cloths are laminated and integrated with an adhesive or resin impregnated with ferrite powder.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15821882A JPS5947708A (en) | 1982-09-13 | 1982-09-13 | Magnetic material |
| US06/529,992 US4515850A (en) | 1982-09-13 | 1983-09-07 | Composite ferrite textile |
| GB8324509A GB2127739B (en) | 1982-09-13 | 1983-09-13 | Ferrite containing fibres and fabrics |
| DE19833333015 DE3333015A1 (en) | 1982-09-13 | 1983-09-13 | FERRITE COMPOSITE STRUCTURE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15821882A JPS5947708A (en) | 1982-09-13 | 1982-09-13 | Magnetic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5947708A JPS5947708A (en) | 1984-03-17 |
| JPH0412011B2 true JPH0412011B2 (en) | 1992-03-03 |
Family
ID=15666859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15821882A Granted JPS5947708A (en) | 1982-09-13 | 1982-09-13 | Magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947708A (en) |
-
1982
- 1982-09-13 JP JP15821882A patent/JPS5947708A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5947708A (en) | 1984-03-17 |
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