JPS5947708A - Magnetic material - Google Patents

Magnetic material

Info

Publication number
JPS5947708A
JPS5947708A JP15821882A JP15821882A JPS5947708A JP S5947708 A JPS5947708 A JP S5947708A JP 15821882 A JP15821882 A JP 15821882A JP 15821882 A JP15821882 A JP 15821882A JP S5947708 A JPS5947708 A JP S5947708A
Authority
JP
Japan
Prior art keywords
ferrite
composite ferrite
composite
fibers
high molecular
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
Application number
JP15821882A
Other languages
Japanese (ja)
Other versions
JPH0412011B2 (en
Inventor
Takeshi Ishino
石野 健
Yasuo Hashimoto
康雄 橋本
Kenichi Ichihara
謙一 市原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP15821882A priority Critical patent/JPS5947708A/en
Priority to US06/529,992 priority patent/US4515850A/en
Priority to DE3333015A priority patent/DE3333015C2/en
Priority to GB8324509A priority patent/GB2127739B/en
Publication of JPS5947708A publication Critical patent/JPS5947708A/en
Publication of JPH0412011B2 publication Critical patent/JPH0412011B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets 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
    • H01F1/34Magnets 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
    • H01F1/36Magnets 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
    • H01F1/37Magnets 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
    • H01F1/375Flexible bodies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To obtain a magnetic material excellent in flexibility and strength by such an arrangement wherein a kind of fiberlike material is prepared by forming a layer of composite ferrite made of a mixture of ferrite powder and high molecular material on a film of high molecular material, and a kind of clothlike material is also prepared by weaving the fiberlike materials, and a magnetic material is obtained by laminating several sheets of the clothlike material thus obtained. CONSTITUTION:A kind of liquid composite ferrite material is prepared by mixing ferrite powder of which average grain diameter if 0.3-20mum in high molecular material such as an adhesive within the range of volume mixing ratio of 0.2-0.8, and a layer 2 of composite ferrite is formed by coating the liquid composite ferrite material on a film 1 of high molecular material, e.g., polyester, etc. of which thickness is less than 50mum at a thickness of less than 100mum and then dried. Ribbonlike composite ferrite fibers 4 are obtained by cutting the sheetlike composite ferrite into slitlike pieces of which width is less than 100mum, and a cloth 10 of composite ferrite fibers is obtained by weaving the composite ferrite fibers 4, or mixing and spinning them together with nylon fibers, acryl fibers, polyester fibers, etc. and laminating several sheets of the composite ferrite cloth thus woven.

Description

【発明の詳細な説明】 本発明は電波吸収拐、電磁シールド拐、トランス等の磁
心やその池の磁性体部品として用いるのに適した複合フ
ェ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 magnetic component of a magnetic core or pond of a radio wave absorbing device, an electromagnetic shielding device, a transformer, etc.

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上りフェライト
焼結体が利用されている。しかしながら、フェライト焼
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、プラスチック等の高分子材料と7エライ
ト粉末とを混合した複合フェ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。
Upstream ferrite sintered bodies have conventionally been used as magnetic cores of transformers, antennas, radio wave absorbers, and segments for magnets and motors. However, ferrite sintered bodies have problems such as brittleness and poor workability. In order to improve these, the above-mentioned products, such as rubber magnets, are made of composite ferrite, which is a mixture of polymeric materials such as rubber and plastic and 7-elite powder, which is tough, easy to process, and has 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
複合フェライI・は、一般に7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、コンプレッシ
ョン成形等により種々の形状に成形される。フェライト
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7エ
ライト粉末を多く混合する結果、本来の性質から太幅に
劣化した特性を示す、。
However, there are also problems in this case. That is, this type of composite ferrite I is generally formed into various shapes by extrusion molding, injection molding, compression molding, etc. from a mixture of 7-elite powder and an organic polymer material. Compared to ferrite sintered bodies, it has toughness, good workability, and excellent mechanical properties, but compared to the mechanical properties of rubber and polymer materials themselves, it is an inorganic material7 As a result of mixing a large amount of ELITE powder, it exhibits characteristics that have significantly deteriorated from their original properties.

本発明は、従来の複合フェライトの、−れらの欠点を改
善するもので′あり、複合フェライトを繊オ(1化して
布状に織る。二とにより、優れた柔軟ヤ1と強度とを持
たぜた磁性体拐料をJ5L供しようと一ケるものである
The present invention aims to improve these drawbacks of conventional composite ferrite, and by combining composite ferrite with fibers (1) and weaving it into a cloth-like form, it has excellent flexibility and strength. I was planning to use the magnetic material I had brought with me to J5L.

以−■・、本発明に係る磁性木祠オニ1の実施例を図面
に従って説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a magnetic wooden hoist 1 according to the present invention will be described with reference to the drawings.

まず、本発明で用いる複合フェライト繊維に−)いて説
明する。第1図の如く、・1ノ均ネζ!r径0.:<〜
2fl/1mのフェライト粉末を接着剤等の高かj′月
料に体積混合比率+1.2−+1. fiの範囲で混合
した液状複合フェライト材を厚み50μ(n l”月・
の例えばポリエステル等の品分−OA料フィルl、1に
1()()μIl+以下に塗布して複合フェライト層2
を形成し乾燥させ、該複合フェライト層2におけるフェ
ライト粉末の体積消1合比率を0.2〜(,1、iEに
設定してシート状複合フェライト3を得て、それから、
シート状複合フェライト:)を第2図のように幅100
μm以下にスリット状に切断することにより、フィルム
1及び複合フェライ)/!2がリボン状となった複合フ
ェライトWX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, 1 no yen ζ! r diameter 0. :<~
Add 2fl/1m of ferrite powder to a high-grade material such as adhesive at a volumetric mixing ratio of +1.2-+1. The liquid composite ferrite material mixed in the range of
For example, a material such as polyester - OA material film 1 is coated on 1()()μIl+ or less to form a composite ferrite layer 2
was formed and dried, and the volume reduction ratio of the ferrite powder in the composite ferrite layer 2 was set to 0.2 to (,1, iE) to obtain a sheet-like composite ferrite 3, and then,
Sheet-like composite ferrite
By cutting into slits of less than μm, film 1 and composite ferrite)/! Composite ferrite WX fiber 4 in which 2 is ribbon-shaped is obtained.

第3図に実施例として示す磁性体材料は、その複合フェ
ライト繊維4を織って複合フェライト繊維布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 cloth 10, which is then laminated with a plurality of sheets.

上記実施例によれば、フェライト粉末の本積比率を0.
2〜0.8とした複合フェライト層2によって充分な磁
気特性が得られる。また、複合7エライll&維布とな
っているため、軽量で柔軟性を持ちかつ充分な強度を有
する。さらに、複雑な形状になしまぜることが可能であ
る。さらに、樹脂とフェライト粉末とを混合して成形物
となす従来の複合フェ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ぎるか、実施
例の構成によれば複合フェライIMli維布を用いてい
るので!&維の織り方によって非常に均一な製品を作る
ことができる。
According to the above embodiment, the main volume ratio of the ferrite powder is 0.
Sufficient magnetic properties can be obtained by the composite ferrite layer 2 having a value of 2 to 0.8. In addition, since it is made of composite 7-layer fabric, it is lightweight, flexible, and has sufficient strength. Furthermore, it can be mixed into complex shapes. Furthermore, in the conventional composite ferrite made by mixing resin and ferrite powder to form a molded product, there is a problem in dispersibility, and the deterioration due to variations in magnetic properties can be suppressed. Because it uses! & The weaving method of the fibers makes it possible to create very uniform products.

複合フェライト繊維布として、前記複合フェライY繊剤
口を、ナイロン繊維、アクリル繊維、l(リエステル繊
紺等の合成繊維を芯とした糸ににり合わせ巻き−)けて
混紡したちガを用し・て織った構成としてもよい1.こ
の場合には、複合フェライトI&組布け、強靭な合成繊
維の混紡であるため、非常に強度の優れjこ磁性木相料
となる。
As a composite ferrite fiber cloth, a chiga fabric is used in which the composite ferrite Y fiber is mixed with nylon fiber, acrylic fiber, and l (wrapped to suit a yarn with a synthetic fiber such as lyester fiber navy blue). It is also possible to have a woven structure.1. In this case, since it is a blend of composite ferrite I, braided fibers, and strong synthetic fibers, it becomes a highly strong magnetic wood material.

さらに、前記複合フェライト繊維布を複数枚積層するの
に、7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
ことかできる。この場合は形状の定まった構造木として
Jト・るのに適し、てし・る。
Furthermore, if a plurality of composite ferrite fiber cloths are laminated into a sheet using an adhesive or resin impregnated with 7-elite powder, the magnetic properties can be further improved. In this case, it is suitable for use as a structured tree with a fixed shape.

以−1−説明したように、本発明によれば、複合フェラ
イトをtJ&紺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ヰA料を摺ることができ
る。
As explained above-1-, according to the present invention, a magnetic material with excellent flexibility and strength can be printed by turning composite ferrite into tJ&navy blue and weaving it into a cloth shape. .

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、イング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
ールド利、トランス磁心、インビーグーケース、フェラ
イト磁石布、電子レンジ用がスケット等が挙げられる。
Applications of the present invention include radio wave absorber sheets, structured radio wave absorbers, inctance adjustment sheets (magnetic correction sheets for color correction of color TV deflection yokes, etc.), electromagnetic shielding, transformer magnetic cores, and in-vehicle cases. , ferrite magnet cloth, and sketches for microwave ovens.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明で用いる複合フェライト繊維を作成する
ためのシート状複合7エライトを示す斜視図、第2図は
複合7エライト繊維を示す斜視図、第3図は本発明に係
る磁性体利料の実施例を示す斜視図である。 1・・・高分子材料フィルム、2・・・複合フェライト
層、3・・・シート状複合フェライト、4・・・複合7
エライト繊維、10・・・複合フェライト繊維布。 特許出願人 東京電気化学工業株式会社 弁理士 村 井  隆 手続補正す)(方式) 昭和57年12月1311 特F+庁長官 若杉和夫 殿 1、事件の表示 昭和5フイI 特許  願第158218 +−;2、
発明の名称  磁性体材料 3、 補正をする者 事件との関係  特許出願人 (1所  東京都中央区1」本稿−丁1113番1号″
名 称  (306)東京電気化学工)′、に(、残余
と1゜代表前 素野1111次部 6、 補正により増加する発明−の数 7、補正の対象   /14.・ハ 願書及び明細書 ・ +21′″ : / 8、補正の内容 劣師湧七衿
FIG. 1 is a perspective view showing a sheet-like composite 7-elite fiber for producing the composite ferrite fiber used in the present invention, FIG. 2 is a perspective view showing a composite 7-elite fiber, and FIG. 3 is a perspective view showing a composite 7-elite fiber used in the present invention. FIG. 3 is a perspective view showing an example of the material. DESCRIPTION OF SYMBOLS 1... Polymer material film, 2... Composite ferrite layer, 3... Sheet-like composite ferrite, 4... Composite 7
Elite fiber, 10... Composite ferrite fiber cloth. Patent Applicant Tokyo Denki Kagaku Kogyo Co., Ltd. Patent Attorney Takashi Murai Procedural Amendment) (Method) December 1982 1311 Special F + Office Commissioner Kazuo Wakasugi 1, Indication of Case Showa 5th Fi I Patent Application No. 158218 +-; 2,
Title of the invention: Magnetic material 3, Relationship to the case of the person making the amendment Patent applicant (1 location: Chuo-ku, Tokyo 1, this paper-C1113-1)
Name (306) Tokyo Denki Kagaku Kogyo)', ni (, Remainder and 1° before representation Sono 1111 next part 6, number of inventions increased by amendment 7, subject of amendment /14.・c application and specification・ +21′″: / 8, Correction details

Claims (1)

【特許請求の範囲】 (+)  I’ノみV)()μII]以ドの高分子キイ
料フィル私に、フェライト粉末と高分子拐料との混合物
からなりフェライト粉末の体積混合比率を0.2−0.
0に設定した厚さ10()μ(0以下の複合フェライト
層を設け、これを幅1. (11(1μm以ト“に形成
した複合フェライト繊維を織った複合フェライト繊維布
、又は曲記複合フェライ14&維を合成fIIMFと混
紡して織った複合フェ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祠料。 (2)前記複合フェライト繊維布がフェライ)粉末を含
浸した接着剤又は(jj脂で複数枚積層ゴ本比されてい
る特許Rfj求の範囲第1項記載の磁性体イ・イ料。
[Claims] (+) A polymer key material filler consisting of a mixture of ferrite powder and a polymer filler, with a volume mixing ratio of ferrite powder of 0. .2-0.
A composite ferrite fiber cloth woven with composite ferrite fibers with a thickness of 10 μm or less and a width of 1 μm or less, or a curved composite A magnetic material characterized by laminating a plurality of composite ferrite fiber cloths woven by blending Ferrite 14 & fiber with synthetic fIIMF. (2) The composite ferrite fiber cloth is an adhesive impregnated with Ferrite powder or ( The magnetic material I/I material described in item 1 of the scope of patent Rfj, which is made of a plurality of laminated sheets of resin.
JP15821882A 1982-09-13 1982-09-13 Magnetic material Granted JPS5947708A (en)

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
DE3333015A DE3333015C2 (en) 1982-09-13 1983-09-13 Ferrite composite structure and process for its manufacture
GB8324509A GB2127739B (en) 1982-09-13 1983-09-13 Ferrite containing fibres and fabrics

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 true JPS5947708A (en) 1984-03-17
JPH0412011B2 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)

Also Published As

Publication number Publication date
JPH0412011B2 (en) 1992-03-03

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