JP3301730B2 - Flexible bonded magnet - Google Patents
Flexible bonded magnetInfo
- Publication number
- JP3301730B2 JP3301730B2 JP30039198A JP30039198A JP3301730B2 JP 3301730 B2 JP3301730 B2 JP 3301730B2 JP 30039198 A JP30039198 A JP 30039198A JP 30039198 A JP30039198 A JP 30039198A JP 3301730 B2 JP3301730 B2 JP 3301730B2
- Authority
- JP
- Japan
- Prior art keywords
- bonded magnet
- flexible
- flexible bonded
- magnetic powder
- sheet
- 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 - Lifetime
Links
Classifications
-
- 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
- H01F41/0253—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 for manufacturing permanent magnets
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、目的とする磁気
特性を備えると共に、比較的廉価に、しかも、容易に製
造可能な可撓性ボンド磁石の提供に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible bonded magnet which has desired magnetic properties, is relatively inexpensive, and can be easily manufactured.
【０００２】[0002]
【従来の技術】回転機などに組み込み用いられる可撓性
ボンド磁石として、例えば、フェライト系磁性粉末を樹
脂バインダー中に分散し得られる可撓性ボンド磁石、あ
るいは、希土類−遷移金属系磁性粉末などの合金系磁性
粉末を樹脂バインダー中に分散して得られる可撓性ボン
ド磁石などが用いられていた。2. Description of the Related Art As a flexible bonded magnet used in a rotating machine or the like, for example, a flexible bonded magnet obtained by dispersing a ferrite magnetic powder in a resin binder, or a rare earth-transition metal magnetic powder. A flexible bonded magnet obtained by dispersing an alloy-based magnetic powder in a resin binder has been used.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、合金系
磁性粉末である硬質磁性粉末を樹脂バインダー中に分散
して得られるボンド磁石に対して、当該合金系磁性粉末
を樹脂バインダー中に分散して得られるボンド磁石より
も低い磁気特性のボンド磁石、あるいは、フェライト系
磁性粉末である硬質磁性粉末を樹脂バインダー中に分散
して得られるボンド磁石よりも高い磁気特性を備えたボ
ンド磁石を必要とすることがある。However, in contrast to a bonded magnet obtained by dispersing a hard magnetic powder, which is an alloy magnetic powder, in a resin binder, the alloy magnetic powder is obtained by dispersing the alloy magnetic powder in a resin binder. A bonded magnet with magnetic properties lower than that of the bonded magnet, or a bonded magnet with higher magnetic properties than a bonded magnet obtained by dispersing a hard magnetic powder that is a ferrite-based magnetic powder in a resin binder. There is.
【０００４】かかる合金系磁性粉末を樹脂バインダー中
に分散して得られるボンド磁石よりも低い磁気特性のボ
ンド磁石を得る場合、樹脂バインダーに混合される該合
金系磁性粉末の充填量を少なくし、又は、この合金系磁
性粉末に非磁性粉末を混合してボンド磁石を構成するよ
うにしていた。しかしながら、かかる方法で得られるボ
ンド磁石にあっては、樹脂バインダーに充填される合金
系磁性粉末の充填量を少なくした場合、構成されるボン
ド磁石が所期の寸法安定性を有しない不具合を生ずるこ
とがあった。In order to obtain a bonded magnet having lower magnetic properties than a bonded magnet obtained by dispersing such an alloy-based magnetic powder in a resin binder, the filling amount of the alloy-based magnetic powder mixed with the resin binder is reduced. Alternatively, a non-magnetic powder is mixed with this alloy-based magnetic powder to form a bonded magnet. However, in the bonded magnet obtained by such a method, when the filling amount of the alloy-based magnetic powder to be filled in the resin binder is reduced, a problem arises in that the formed bonded magnet does not have the expected dimensional stability. There was something.
【０００５】また、この合金系磁性粉末に非磁性粉末を
混合してボンド磁石を構成する手法にあっては、構成さ
れるボンド磁石に寸法安定性がもたらされる特長を有す
るものの、ボンド磁石にもたらされる磁気特性が当該ボ
ンド磁石に含まれる硬質磁性粉末の容積比によって概ね
決定されること、並びに、当該合金系磁性粉末の比重が
大きいことなどから、この合金系磁性粉末に非磁性粉末
を混合して磁気特性の低いボンド磁石を構成する場合、
構成されるボンド磁石における磁気特性の減少の割合に
見合って当該合金系磁性粉末の充填重量を減少できない
不具合があった。In the method of forming a bonded magnet by mixing a non-magnetic powder with an alloy-based magnetic powder, the bonded magnet has the advantage of providing dimensional stability, but does not provide the bonded magnet. Since the magnetic properties to be determined are generally determined by the volume ratio of the hard magnetic powder contained in the bond magnet, and the specific gravity of the alloy magnetic powder is large, a nonmagnetic powder is mixed with the alloy magnetic powder. When configuring a bonded magnet with low magnetic properties,
There was a problem that the filling weight of the alloy-based magnetic powder could not be reduced in proportion to the ratio of the decrease in the magnetic properties of the bonded magnet thus constituted.
【０００６】又、フェイライト系磁性粉末を樹脂バイン
ダー中に分散して得られるボンド磁石よりも高い磁気特
性のボンド磁石を得る場合、樹脂バインダーに該フェラ
イト系磁性粉末と共に所要量の合金系磁性粉末を充填す
ることによって所期の磁気特性を有するボンド磁石を構
成するようにしていた。When a bonded magnet having higher magnetic properties than a bonded magnet obtained by dispersing a ferrite magnetic powder in a resin binder is obtained, a required amount of the alloy magnetic powder is added to the resin binder together with the ferrite magnetic powder. To form a bonded magnet having desired magnetic properties.
【０００７】しかしながら、かかる方法で得られるボン
ド磁石にあっては、当該ボンド磁石中に含まれる合金系
磁性粉末がフェライト系磁性粉末よりも比較的粒径の大
きい粉末を含んでいることから、構成されるボンド磁石
の強度が当該粒径の大きい合金系磁性粉末によって大幅
に減少される不具合があった。However, in the bonded magnet obtained by such a method, since the alloy-based magnetic powder contained in the bonded magnet includes a powder having a relatively larger particle size than the ferrite-based magnetic powder, the structure of the bonded magnet may be reduced. There is a problem that the strength of the bonded magnet is significantly reduced by the alloy magnetic powder having the large particle size.
【０００８】また、このように樹脂バインダー中に分散
して用いられる硬質磁性粉末の充填量を加減することに
よって所期の磁気特性を有するボンド磁石を構成し、あ
るいは又、合金系磁性粉末と共に非磁性粉末を樹脂バイ
ンダー中に充填して所期の磁気特性を有するボンド磁石
を構成し、あるいは又、フェライト系磁性粉末と共に合
金系磁性粉末を樹脂バインダー中に充填して所期の磁気
特性を有するボンド磁石を構成する手法にあっては、そ
れぞれ要請されるボンド磁石における磁気特性に対応し
た磁石設計、例えば、合金系磁性粉末又はフェライト系
磁性粉末の樹脂バインダーに対する充填量、合金系磁性
粉末とフェライト系磁性粉末の樹脂バインダーに対する
充填量及びその配合比、合金系磁性粉末と非磁性粉末の
樹脂バインダーに対する充填量及びその配合比などを、
その都度計算し、しかも、これらの計算に見合った配合
比で、夫々所期の磁気特性を備えたボンド磁石を構成す
る必要があり、かかる目的とされる所期の磁気特性を有
するボンド磁石の構成に都合の良い磁石設計に多くの労
が要請されると共に、要請される個々の磁気特性を有す
るボンド磁石を各別に構成用意する必要があり、個々夫
々に磁気特性を異にする多種且つ少量のボンド磁石の成
形提供に難があった。[0008] Further, by adjusting the filling amount of the hard magnetic powder used by being dispersed in the resin binder as described above, a bonded magnet having desired magnetic characteristics can be formed. Fill the magnetic powder into the resin binder to form a bonded magnet with the desired magnetic properties, or fill the alloy magnetic powder with the ferrite magnetic powder into the resin binder to have the desired magnetic properties In the method of constructing the bonded magnet, the magnet design corresponding to the magnetic properties of the required bonded magnet, for example, the filling amount of the alloy magnetic powder or the ferrite magnetic powder to the resin binder, the alloy magnetic powder and the ferrite Of magnetic powder to resin binder and its compounding ratio, for alloy magnetic powder and non-magnetic powder resin binder And loading and mixing ratio to,
It is necessary to calculate the bond magnets each having the desired magnetic properties at a mixing ratio appropriate for these calculations, and to calculate the bond magnets each having the desired magnetic properties. A lot of labor is required for a magnet design that is convenient for the configuration, and it is necessary to separately prepare bond magnets having the required magnetic properties, and various and small amounts of magnetic properties differing from each other are required. There was a difficulty in providing bonded magnets.
【０００９】この発明は、かかる従来のボンド磁石にお
ける不具合を解消するものであって、要請される磁気特
性を備え、且つ、容易に構成可能なボンド磁石の提供を
目的としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the conventional bonded magnet, and has as its object to provide a bonded magnet having required magnetic properties and being easily configured.
【００１０】[0010]
【課題を解決するための手段】前記目的を達成するため
に請求項１記載に係る発明を、互いの接触面において相
互の樹脂分が一体化するように押圧一体とされる複数個
の可撓性ボンド磁石構成体からなり、且つ、この複数個
の可撓性ボンド磁石構成体の少なくとも一つの可撓性ボ
ンド磁石構成体が他の可撓性ボンド磁石構成体と磁気特
性の異なる可撓性ボンド磁石構成体としてあると共に、
前記複数個の可撓性ボンド磁石構成体が磁気特性の異な
る二種以上の可撓性ボンド磁石構成体により構成してあ
る可撓性ボンド磁石であって、 前記可撓性ボンド磁石
が、主としてフェライト系磁性粉末からなる硬質磁性粉
末を可撓性樹脂バインダー中に分散して得られる可撓性
ボンド磁石構成体の一以上と、主として合金系磁性粉末
からなる硬質磁性粉末を可撓性樹脂バインダー中に分散
して得られる可撓性ボンド磁石構成体の一以上とを有す
ることを特徴とする可撓性ボンド磁石としてある。In order to achieve the above-mentioned object, the invention according to claim 1 is applied to a plurality of flexible members which are pressed and integrated so that mutual resin components are integrated at their contact surfaces. A flexible bonded magnet structure, and wherein at least one of the plurality of flexible bonded magnet structures has a magnetic property different from that of the other flexible bonded magnet structures. As a bonded magnet structure,
A flexible bonded magnet in which the plurality of flexible bonded magnet structures are constituted by two or more types of flexible bonded magnet structures having different magnetic properties , wherein the flexible bonded magnet is
But hard magnetic powder mainly composed of ferrite magnetic powder
Flexibility obtained by dispersing powder in a flexible resin binder
One or more bonded magnet components and mainly alloy magnetic powder
Disperse hard magnetic powder consisting of
And one or more flexible bonded magnet structures obtained by
There as a flexible bonded magnet, characterized in that that.
【００１１】このように構成される可撓性ボンド磁石に
あっては、この可撓性ボンド磁石を構成する二種以上の
磁気特性を異にする可撓性ボンド磁石構成体を用意する
ことによって、要請される各種の磁気特性を有する可撓
性ボンド磁石を、容易に、しかも、要請される所期の磁
気特性を備えたものとして構成、提供することができ
る。In the flexible bonded magnet having the above-mentioned structure, two or more kinds of flexible bonded magnets having different magnetic properties are prepared by forming the flexible bonded magnet. A flexible bonded magnet having various required magnetic characteristics can be easily configured and provided with desired magnetic characteristics.
【００１２】また、要請される所期の磁気特性を備えた
可撓性ボンド磁石を容易に構成できると共に、構成され
る可撓性ボンド磁石が主としてフェライト系磁性粉末か
らなる硬質磁性粉末を可撓性樹脂バインダー中に分散し
て得られた可撓性ボンド磁石構成体によって補強される
ように機能する。In addition, a flexible bonded magnet having desired magnetic properties can be easily formed, and the formed flexible bonded magnet is made of a hard magnetic powder mainly composed of a ferrite magnetic powder. It functions so as to be reinforced by a flexible bonded magnet structure obtained by being dispersed in a conductive resin binder.
【００１３】また、前記目的を達成するために請求項２
記載に係る発明を、前記請求項１記載に係る発明におい
て、可撓性ボンド磁石構成体がシート状体であることを
特徴とする可撓性ボンド磁石としてある。[0013] In order to achieve the above object, the present invention provides a second aspect.
The invention according to the above aspect is the flexible bonded magnet according to the first aspect, wherein the flexible bonded magnet structure is a sheet.
【００１４】このように構成される可撓性ボンド磁石に
あっては、可撓性ボンド磁石を構成する二種以上の磁気
特性を異にするシート状をなす可撓性ボンド磁石構成体
を用意し、且つ、これを単に重ね合わせ使用することに
よって、個々に要請される所期の磁気特性を備えたシー
ト状の可撓性ボンド磁石を容易に構成、提供することが
できる。In the flexible bonded magnet having the above-mentioned structure, a sheet-shaped flexible bonded magnet structure having two or more kinds of magnetic characteristics different from each other is prepared. In addition, by simply using them, it is possible to easily construct and provide a sheet-like flexible bond magnet having desired magnetic properties individually required.
【００１５】なお、本明細書において可撓性ボンド磁石
構成体は着磁をされている可撓性ボンド磁石構成体であ
る場合と未着磁の可撓性ボンド磁石構成体である場合と
がある。また、本明細書において可撓性ボンド磁石は着
磁をされている可撓性ボンド磁石である場合と未着磁の
可撓性ボンド磁石である場合とがある。In the present specification, the flexible bonded magnet structure may be a magnetized flexible bonded magnet structure or a non-magnetized flexible bonded magnet structure. is there. In this specification, the flexible bonded magnet may be a magnetized flexible bonded magnet or a non-magnetized flexible bonded magnet.
【００１６】[0016]
【発明の実施の形態】以下本発明の典型的な一実施の形
態に係る可撓性樹脂ボンド磁石について詳細に説明す
る。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a flexible resin bonded magnet according to a typical embodiment of the present invention will be described in detail.
【００１７】図１〜図３は本発明の典型的な一実施の形
態を示すものであって、図１は可撓性樹脂ボンド磁石を
構成する各可撓性ボンド磁石構成体１０の構成例を、図
２は、この各可撓性ボンド磁石構成体１０を圧延ロール
Ｒ間で一体の接合体２０とする圧延状態を夫々模式的
に、図３は、この接合一体とされた可撓性ボンド磁石構
成体１０としての接合体２０からなる可撓性ボンド磁石
３０の要部を斜視図で示している。図４及び図５は、当
該可撓性ボンド磁石３０の典型的な一実施例を示すもの
であって、図４では、その成形の工程の一部を模式的
に、また図５では、この成形の工程によって得られる可
撓性ボンド磁石３０’の一例を要部斜視図で示してい
る。また、図６は、この各実施例及び各比較例に係る可
撓性ボンド磁石のＩ−Ｈ曲線を示すグラフであり、図７
は、この各実施例及び各比較例に係る可撓性ボンド磁石
のＢ−Ｈ曲線を示すグラフである。図８及び図９は、当
該可撓性ボンド磁石３０の他の典型的な一実施例を示す
ものであって、図８では、その成形の工程の一部を模式
的に、また図９では、この成形の工程によって得られる
可撓性ボンド磁石３０”の一例を要部斜視図で示してい
る。FIGS. 1 to 3 show a typical embodiment of the present invention. FIG. 1 shows an example of the structure of each flexible bonded magnet assembly 10 constituting a flexible resin bonded magnet. FIG. 2 schematically shows a rolling state in which each of the flexible bonded magnet constructs 10 is integrated into a joined body 20 between the rolling rolls R, and FIG. FIG. 2 is a perspective view showing a main part of a flexible bonded magnet 30 including a bonded body 20 as a bonded magnet structure 10. 4 and 5 show a typical embodiment of the flexible bonded magnet 30. FIG. 4 schematically shows a part of the molding process, and FIG. An example of a flexible bonded magnet 30 'obtained by a molding process is shown in a perspective view of a main part. FIG. 6 is a graph showing an I-H curve of the flexible bonded magnet according to each of Examples and Comparative Examples.
Is a graph showing BH curves of the flexible bonded magnets according to each of the examples and the comparative examples. 8 and 9 show another typical embodiment of the flexible bonded magnet 30. FIG. 8 schematically shows a part of the molding process, and FIG. An example of a flexible bonded magnet 30 ″ obtained by this molding step is shown in a perspective view of a main part.
【００１８】この実施の形態に係る可撓性ボンド磁石３
０は、互いの接触面において相互の樹脂分が一体化する
ように押圧一体とされる複数個の可撓性ボンド磁石構成
体１０からなり、且つ、この複数個の可撓性ボンド磁石
構成体１０の少なくとも一つの可撓性ボンド磁石構成体
１０が他の可撓性ボンド磁石構成体１０と磁気特性の異
なる可撓性ボンド磁石構成体１０としてあり、前記複数
個の可撓性ボンド磁石構成体１０が磁気特性の異なる二
種以上の可撓性ボンド磁石構成体１０により構成してあ
る。The flexible bonded magnet 3 according to this embodiment
Numeral 0 is composed of a plurality of flexible bonded magnet structures 10 which are pressed and integrated so as to integrate the respective resin components on the contact surfaces of each other, and the plurality of flexible bonded magnet structures 10, at least one flexible bonded magnet structure 10 is a flexible bonded magnet structure 10 having magnetic properties different from those of the other flexible bonded magnet structures 10; The body 10 is composed of two or more kinds of flexible bonded magnet structures 10 having different magnetic properties.
【００１９】先ず、この実施の形態に係る可撓性ボンド
磁石３０を構成する可撓性ボンド磁石構成体１０は、二
種以上の磁気特性を異にする可撓性ボンド磁石構成体１
０を、これによって構成される可撓性ボンド磁石３０の
構成に必要な個数分として用意される。First, a flexible bonded magnet structure 10 constituting a flexible bonded magnet 30 according to this embodiment is a flexible bonded magnet structure 1 having two or more kinds of different magnetic characteristics.
0 is prepared as the number required for the configuration of the flexible bonded magnet 30 constituted by the above.
【００２０】かかる可撓性ボンド磁石３０を構成する複
数の可撓性ボンド磁石構成体１０は、この複数の可撓性
ボンド磁石構成体１０によって構成される可撓性ボンド
磁石３０が所期の磁気特性を備えるように、当該可撓性
ボンド磁石３０を構成する夫々の可撓性ボンド磁石構成
体１０を二種以上の磁気特性を異にする可撓性ボンド磁
石構成体１０として、これを夫々に必要個数分用意す
る。The plurality of flexible bonded magnet structures 10 constituting the flexible bonded magnet 30 are the same as the flexible bonded magnets 30 formed by the plurality of flexible bonded magnet structures 10. Each of the flexible bonded magnet structures 10 constituting the flexible bonded magnet 30 is provided with two or more types of flexible bonded magnet structures 10 having different magnetic characteristics so as to have magnetic characteristics. Prepare the required number for each.
【００２１】即ち、ここで形成用意される可撓性ボンド
磁石構成体１０は、例えば、可撓性の樹脂バインダー中
に分散される硬質磁性粉末の選択的使用、より具体的に
は、この可撓性樹脂バインダー中に分散使用される硬質
磁性粉末の種別、二種以上の硬質磁性粉末を配合用いる
場合にあっては当該配合硬質磁性粉末の種別及び当該配
合硬質磁性粉末の配合比率、当該可撓性ボンド磁石構成
体１０を構成する樹脂バインダー中に分散される一種又
は所定の配合比からなる二種以上の硬質磁性粉末の当該
樹脂バインダーに対する配合量、当該可撓性ボンド磁石
構成体１０を構成する一種又は所定の配合比からなる二
種以上の硬質磁性粉末と共に樹脂バインダー中に分散配
合される他の磁性粉末又は非磁性粉末の配合量などによ
って特定される所期の磁気特性を備えたものとして形成
用意される。That is, the flexible bonded magnet structure 10 formed and prepared here can be used, for example, by selectively using hard magnetic powder dispersed in a flexible resin binder. The type of hard magnetic powder dispersed and used in the flexible resin binder, and when two or more types of hard magnetic powders are used, the type of the hard magnetic powder and the mixing ratio of the hard magnetic powder. The amount of one or two or more hard magnetic powders having a predetermined compounding ratio dispersed in the resin binder constituting the flexible bond magnet structure 10 with respect to the resin binder, A place specified by the blending amount of another magnetic powder or non-magnetic powder which is dispersed and blended in a resin binder together with one or more hard magnetic powders having a predetermined blending ratio. It formed prepared as having the magnetic properties.
【００２２】また、ここで形成用意される磁気特性を異
にする二種以上の可撓性ボンド磁石構成体１０は、この
磁気特性を異にする二種以上の可撓性ボンド磁石構成体
１０の任意数によって構成される可撓性ボンド磁石３０
に、所期の磁気特性がもたらされるように、所定の容
積、例えば、所定の厚みを備えたシート状の可撓性ボン
ド磁石構成体１０として形成用意される。The two or more kinds of flexible bonded magnet structures 10 having different magnetic characteristics are prepared here. The two or more types of flexible bonded magnet structures 10 having different magnetic characteristics are prepared. Bonded magnet 30 constituted by any number of
Then, it is formed and prepared as a sheet-shaped flexible bonded magnet structure 10 having a predetermined volume, for example, a predetermined thickness so as to provide desired magnetic characteristics.
【００２３】この可撓性ボンド磁石構成体１０を構成す
る硬質磁性粉末は、典型的には、例えば、バリウムフェ
ライト、ストロンチウムフェライトなどのフェライト系
磁性粉末、サマリウム−コバルト系合金粉末、Ｎｄ−Ｆ
ｅ−Ｂ系磁性粉末などの希土類−遷移金属系磁性粉末、
及びＡｌ−Ｎｉ−Ｃｏ系磁性粉末などの合金系磁性粉末
などの任意の硬質磁性粉末が用いられる。The hard magnetic powder constituting the flexible bonded magnet construct 10 is typically a ferrite magnetic powder such as barium ferrite or strontium ferrite, a samarium-cobalt alloy powder, Nd-F
rare earth-transition metal based magnetic powders such as e-B based magnetic powders,
Any hard magnetic powder such as alloy magnetic powder such as Al-Ni-Co magnetic powder and the like may be used.
【００２４】かかる硬質磁性粉末の一種又は所期の配合
比からなる硬質磁性粉末の二種以上の所定量を樹脂バイ
ンダー中に配合して、所定容積の可撓性ボンド磁石構成
体１０を形成用意する。One kind of such hard magnetic powder or two or more kinds of hard magnetic powder having an intended compounding ratio are blended in a resin binder to prepare a flexible bonded magnet construct 10 having a predetermined volume. I do.
【００２５】例えば、かかる硬質磁性粉末の一種又は所
期の配合比からなる硬質磁性粉末の二種以上の所定量に
磁性粉末又は非磁性粉末を所定の配合比で配合して、所
定容積の可撓性ボンド磁石構成体１０を形成用意する。For example, a magnetic powder or a non-magnetic powder is blended in a predetermined blending ratio with one or more hard magnetic powders having the desired blending ratio and with a predetermined blending ratio. A flexible bonded magnet construct 10 is formed and prepared.
【００２６】例えば、また、かかる硬質磁性粉末の一種
又は所期の配合比からなる硬質磁性粉末の二種以上の所
定量に所定の配合比からなる磁性粉末と非磁性粉末を所
定の配合比で配合して、所定容積の可撓性ボンド磁石構
成体１０を形成用意する。For example, one kind of such a hard magnetic powder or two or more kinds of hard magnetic powders having an intended compounding ratio may be mixed with a magnetic powder having a predetermined compounding ratio and a non-magnetic powder at a predetermined compounding ratio. By blending, a flexible bonded magnet structure 10 having a predetermined volume is prepared.
【００２７】また、ここで、前記硬質磁性粉末のバイン
ダーとして用いられる可撓性樹脂バインダーは、典型的
には、例えば、イソプレンゴム、ニトリルゴム、ブチル
ゴムなどの各種合成ゴム、天然ゴム、熱可塑性エラスト
マーなどの各種のゴム状弾性材の一種、又は所定の配合
比からなる二種以上の各種ゴム状弾性材が用いられる。The flexible resin binder used as the binder of the hard magnetic powder is typically, for example, various synthetic rubbers such as isoprene rubber, nitrile rubber, butyl rubber, natural rubber, and thermoplastic elastomer. One kind of various rubber-like elastic materials, or two or more kinds of various rubber-like elastic materials having a predetermined compounding ratio are used.
【００２８】かかる硬質磁性粉末の一種又は所定の配合
比からなる該硬質磁性粉末の二種以上の所定量を単独
に、又は、当該一種又は二種以上の硬質磁性粉末に磁性
粉末及び非磁性粉末の両方又はいずれか一方を配合した
状態で、前記可撓性樹脂バインダー中に分散して得られ
る可撓性ボンド磁石構成体１０は、かかる硬質磁性粉末
の一種又は所定の配合比からなる該硬質磁性粉末の二種
以上の所定量の粉末を単独に、又は、当該一種又は二種
以上の硬質磁性粉末に磁性粉末及び非磁性粉末の両方又
はいずれか一方を配合した粉末を前記可撓性樹脂バイン
ダーの一種又は所定の配合比からなる当該樹脂バインダ
ーの二種以上からなる樹脂バインダー中に分散して、板
状、棒状、ブロック状、シート状などの所期の形状、且
つ、所定容積を備えたものとして構成用意される。One kind of such hard magnetic powder or two or more predetermined amounts of said hard magnetic powder having a predetermined compounding ratio may be used alone, or one or two or more kinds of hard magnetic powder may be mixed with magnetic powder and non-magnetic powder. The flexible bonded magnet structure 10 obtained by dispersing in the flexible resin binder in a state where both or any one of the hard magnetic powders is blended is one of the hard magnetic powders or the hard magnetic powder having a predetermined blending ratio. Two or more predetermined amounts of magnetic powder alone or a powder obtained by blending one or two or more hard magnetic powders with a magnetic powder and / or a non-magnetic powder in the flexible resin. Dispersed in a resin binder consisting of one or two or more of the resin binders having a predetermined compounding ratio, and having a desired shape such as a plate shape, a rod shape, a block shape, a sheet shape, and a predetermined volume. It is configured provided as things.
【００２９】かかる硬質磁性粉末の一種又は所定の配合
比からなる該硬質磁性粉末の二種以上の所定量の粉末を
単独に、又は、当該一種又は二種以上の硬質磁性粉末に
磁性粉末及び非磁性粉末の両方又はいずれか一方を配合
した粉末を前記可撓性樹脂バインダーの一種又は所定の
配合比からなる当該樹脂バインダーの二種以上からなる
樹脂バインダー中に分散して、板状、棒状、ブロック
状、シート状などの所期の形状、且つ、所定容積を備え
た可撓性ボンド磁石構成体１０を構成する手段は、例え
ば、カレンダー成形、押出成形、射出成形など、任意の
成形手段を用いることが可能であり、成形対象物などに
対応した好適な成形手段を選択的に用いることができ
る。One or two or more kinds of the hard magnetic powders having a predetermined compounding ratio may be used alone or in combination with one or more hard magnetic powders. Disperse the powder blended both or either of the magnetic powder in a resin binder consisting of one or more of the flexible resin binder and a resin binder consisting of two or more of the resin binder having a predetermined blending ratio, plate-shaped, rod-shaped, Means for forming the flexible bonded magnet structure 10 having a desired shape such as a block shape or a sheet shape and having a predetermined volume include, for example, any molding means such as calender molding, extrusion molding, and injection molding. It is possible to use a suitable molding means corresponding to a molding object or the like.
【００３０】このようにして用意される二種以上の磁気
特性を異にする可撓性ボンド磁石構成体１０の夫々を一
個以上備えるように当該可撓性ボンド磁石構成体１０の
成形に際して、又は、当該可撓性ボンド磁石構成体１０
の成形後に順次に各接合面を接するように並設状態と
し、且つ、当該並設状態にある可撓性ボンド磁石構成体
１０相互における各接合面となる当該可撓性ボンド磁石
構成体１０の表面の樹脂分が互いに一体化するように、
この並設状態にある各可撓性ボンド磁石構成体１０相互
を押圧、一体として複数個の可撓性ボンド磁石構成体１
０からなる可撓性ボンド磁石３０を構成する。In forming the flexible bonded magnet structure 10 so as to provide one or more flexible bonded magnet structures 10 having two or more kinds of magnetic properties different from each other, or , The flexible bonded magnet structure 10
Of the flexible bonded magnet structure 10 that is to be in a juxtaposed state so that the joining surfaces are sequentially in contact with each other after the molding, and that is the joining surface between the flexible bond magnet structures 10 in the juxtaposed state. So that the resin components on the surface are integrated with each other,
Each of the flexible bonded magnet structures 10 in the juxtaposed state is pressed against each other to integrally form a plurality of flexible bonded magnet structures 1.
Thus, a flexible bond magnet 30 made of zero is formed.
【００３１】かかる可撓性ボンド磁石３０の構成に際し
て、当該可撓性ボンド磁石３０を構成する少なくとも一
つの可撓性ボンド磁石構成体１０が、当該可撓性ボンド
磁石３０を構成する他の可撓性ボンド磁石構成体１０と
磁気特性の異なる可撓性ボンド磁石構成体１０とし、こ
れらを順次に各接合面を接するように並設状態に接合一
体として、複数個の可撓性ボンド磁石構成体１０からな
り、且つ、所期の磁気特性を有する可撓性ボンド磁石３
０を構成するようにしてある。即ち、可撓性ボンド磁石
３０の構成に際して、当該可撓性ボンド磁石３０を構成
する複数個の可撓性ボンド磁石構成体１０が、夫々に用
意された磁気特性を異にする二種類以上の可撓性ボンド
磁石構成体１０における夫々の磁気特性を異にする可撓
性ボンド磁石構成体１０を夫々一個以上備えるように、
これらを順次に各接合面を接するように並設状態に接合
一体として、所期の磁気特性を有する可撓性ボンド磁石
３０を構成するようにしてある。In the construction of the flexible bond magnet 30, at least one flexible bond magnet construct 10 constituting the flexible bond magnet 30 is used to form another flexible bond magnet 30. A plurality of flexible bond magnet structures are formed by joining the flexible bond magnet structures 10 having magnetic properties different from those of the flexible bond magnet structure 10 in a juxtaposed state so that the respective bonding surfaces are sequentially contacted. Flexible bonded magnet 3 comprising body 10 and having desired magnetic properties
0. That is, in the configuration of the flexible bond magnet 30, a plurality of flexible bond magnet constructs 10 constituting the flexible bond magnet 30 are provided with two or more kinds of different kinds of magnetic characteristics prepared respectively. In order to provide one or more flexible bond magnet structures 10 having different magnetic properties from each other in the flexible bond magnet structure 10,
These are joined together in a juxtaposed state so that the joining surfaces are sequentially brought into contact with each other to form a flexible bonded magnet 30 having desired magnetic properties.
【００３２】かかる複数の可撓性ボンド磁石構成体１０
の接合によって目的とする磁気特性を有する可撓性ボン
ド磁石３０を構成する典型例としては、接合される複数
の可撓性ボンド磁石構成体１０によって構成される接合
体２０が所期の磁気特性を備えるように、用意された磁
気特性の異なる二種以上のシート状又は板状をなす可撓
性ボンド磁石構成体１０を、少なくとも当該可撓性ボン
ド磁石構成体１０の一つが他の可撓性ボンド磁石構成体
１０と磁気特性が異なるように、即ち、用意された磁気
特性の異なる二種以上のシート状又は板状をなす可撓性
ボンド磁石構成体１０を、夫々磁気特性の異なるシート
状又は板状をなす可撓性ボンド磁石１０を夫々に一個以
上備えるように、当該可撓性ボンド磁石構成体１０の任
意複数個を重ね合わせの状態にして目的とする磁気特性
を有する可撓性ボンド磁石３０の構成に適する積層状態
になす。The plurality of flexible bonded magnet structures 10
As a typical example of forming the flexible bonded magnet 30 having the desired magnetic characteristics by bonding the bonded members, the bonded body 20 formed by a plurality of bonded flexible bonded magnet structures 10 is provided with the desired magnetic characteristics. So that at least one of the prepared flexible bonded magnet structures 10 in the form of a sheet or a plate having different magnetic characteristics is The magnetic characteristics of the flexible bonded magnet structure 10 are different from that of the flexible bonded magnet structure 10, that is, the prepared flexible bonded magnet structures 10 in the form of two or more sheets or plates having different magnetic characteristics are respectively provided with sheets having different magnetic characteristics. In order to provide one or more flexible bond magnets 10 each having a shape of a plate or a plate, any number of the flexible bond magnet structures 10 may be overlapped with each other to provide a flexible magnet having a desired magnetic property. Sex Eggplant in the stacked state suitable for the construction of de magnet 30.
【００３３】次いで、かかる重ね合わせの状態にある接
合体２０を構成する複数の可撓性ボンド磁石構成体１０
を圧延ロールＲ間に案内して、当該複数の可撓性ボンド
磁石構成体１０を、互いの接合面の樹脂分が互いに一体
化するように押圧、圧着し、前記複数の各可撓性ボンド
磁石構成体１０が一体の接合体２０となるようになす。Next, a plurality of flexible bonded magnet constructs 10 constituting the superimposed joined body 20 will be described.
Are guided between the rolling rolls R, and the plurality of flexible bond magnet structures 10 are pressed and crimped so that the resin components on the bonding surfaces thereof are integrated with each other. The magnet structure 10 is formed as an integral joined body 20.
【００３４】このようにして得られた接合体２０は、当
該接合体２０の接合一体化に際して、又は、該接合体２
０の接合一体化の後に、又は、当該接合体２０を回転機
などに組み付けた状態で着磁して用いられる。The joined body 20 obtained in this manner is used when the joined body 20 is joined or integrated or when the joined body 2
0 is used after the joining and unifying, or in a state where the joined body 20 is attached to a rotating machine or the like.
【００３５】かかる二種以上の磁気特性を異にする可撓
性ボンド磁石構成体１０を、夫々の磁気特性を異にする
可撓性ボンド磁石構成体１０が一個以上含まれるよう
に、その複数個の接合一体化によって所期の磁気特性を
備えた可撓性ボンド磁石３０を構成する典型的な具体例
としては、磁気特性の異なる二種以上の可撓性ボンド磁
石構成体１０、例えば、フェライト系磁性粉末を可撓性
樹脂バインダー中に分散して得られる所定厚みのシート
状又は板状の可撓性ボンド磁石構成体１０と、例えば、
Ｎｄ−Ｆｅ−Ｂ系磁性粉末を可撓性樹脂バインダー中に
分散して得られる所定厚みのシート状又は板状の可撓性
ボンド磁石構成体１０とを用意し、この磁気特性の異な
る二種のシート状又は板状の可撓性ボンド磁石構成体１
０の夫々を少なくとも一個以上含むように、この用意さ
れた複数のシート状又は板状の各可撓性ボンド磁石構成
体１０を、これによって構成される可撓性ボンド磁石３
０に所期の磁気特性がもたらされるように順次に重ね合
わせの状態になすと共に、当該重ね合わせの状態にある
可撓性ボンド磁石構成体１０を圧延ロールＲ間に案内
し、当該各可撓性ボンド磁石構成体１０相互を接合面に
おける表面の樹脂分が一体化するように該圧延ロールＲ
間において押圧し、これらの各可撓性ボンド磁石構成体
１０を一体に連接された所定厚みの接合体２０とし、こ
れを所要長さに切断し または、切断することなく、目
的とする磁気特性を備えた可撓性ボンド磁石３０を構成
する。The two or more kinds of the flexible bonded magnet structures 10 having different magnetic characteristics are provided in such a manner that one or more flexible bonded magnet structures 10 having different magnetic characteristics are included. A typical specific example of forming the flexible bonded magnet 30 having desired magnetic properties by joining and joining the individual pieces includes two or more types of flexible bonded magnet structures 10 having different magnetic properties, for example, A sheet- or plate-shaped flexible bonded magnet construct 10 having a predetermined thickness obtained by dispersing a ferrite-based magnetic powder in a flexible resin binder, for example,
A sheet-shaped or plate-shaped flexible bonded magnet structure 10 having a predetermined thickness obtained by dispersing Nd-Fe-B-based magnetic powder in a flexible resin binder is prepared. Sheet-shaped or plate-shaped flexible bonded magnet structure 1
The plurality of sheet-shaped or plate-shaped flexible bond magnet structures 10 prepared as described above are each formed so as to include at least one or more of each of the flexible bond magnets 3.
0, and the flexible bonded magnet structure 10 in the superimposed state is guided between the rolling rolls R so that the desired magnetic properties are brought to zero. Rolls R such that the resin components on the surfaces of the bonded surfaces of the bonded magnet composites 10 are integrated.
The flexible bonded magnet constructs 10 are pressed together, and each of these flexible bonded magnet constructs 10 is integrally joined to form a joined body 20 having a predetermined thickness, which is cut into a required length or without cutting to obtain desired magnetic properties. Is formed.
【００３６】例えば、Ｎｄ−Ｆｅ−Ｂ系磁性粉末を可撓
性樹脂バインダー中に分散して得られる所定厚みのシー
ト状又は板状の可撓性ボンド磁石構成体１０の両側に、
フェライト系磁性粉末を可撓性樹脂バインダー中に分散
して得られる所定厚みのシート状又は板状の可撓性ボン
ド磁石構成体１０を、当該Ｎｄ−Ｆｅ−Ｂ系磁性粉末を
可撓性樹脂バインダー中に分散して得られるシート状又
は板状の可撓性ボンド磁石構成体１０を挟むように配す
ると共に、この三層状態に重ねられた各可撓性ボンド磁
石構成体１０を圧延ロールＲ間に案内し、当該各可撓性
ボンド磁石構成体１０相互の接合面における表面の樹脂
分が一体化するように該圧延ロールＲ間において押圧
し、当該可撓性ボンド磁石構成体１０を一体に連接され
た所定厚みの接合体２０とし、これを所要長さに切断
し、又は、切断することなく、目的とする磁気特性を備
えた可撓性ボンド磁石３０を構成する。For example, on both sides of a sheet-shaped or plate-shaped flexible bonded magnet structure 10 having a predetermined thickness obtained by dispersing Nd—Fe—B-based magnetic powder in a flexible resin binder,
A sheet- or plate-shaped flexible bonded magnet structure 10 having a predetermined thickness obtained by dispersing a ferrite-based magnetic powder in a flexible resin binder is used to convert the Nd-Fe-B-based magnetic powder into a flexible resin. A sheet-shaped or plate-shaped flexible bonded magnet structure 10 obtained by dispersing in a binder is disposed so as to sandwich the same, and each of the flexible bonded magnet structures 10 stacked in the three-layer state is rolled. R, and pressed between the rolling rolls R such that the resin component on the surface at the joint surface between the flexible bonded magnet structures 10 is integrated with each other. The joined body 20 having a predetermined thickness is integrally connected, and is cut into a required length, or is cut without cutting to form a flexible bonded magnet 30 having desired magnetic characteristics.
【００３７】例えば、また、フェライト系磁性粉末を可
撓性樹脂バインダー中に分散して得られる所定厚みのシ
ート状又は板状の可撓性ボンド磁石構成体１０に、Ｎｄ
−Ｆｅ−Ｂ系磁性粉末を可撓性樹脂バインダー中に分散
して得られる複数の且つ磁気特性の異なる二種以上の所
定厚みのシート状又は板状の可撓性ボンド磁石構成体１
０を重ねると共に、このＮｄ−Ｆｅ−Ｂ系磁性粉末を可
撓性樹脂バインダー中に分散して得られるシート状又は
板状の可撓性ボンド磁石構成体１０に、更にフェライト
系磁性粉末を可撓性樹脂バインダー中に分散して得られ
る所定厚みのシート状又は板状の可撓性ボンド磁石構成
体１０を重ね合わせの状態に設け、この多層状態に重ね
られた各可撓性ボンド磁石構成体１０を圧延ロールＲ間
に案内し、当該各可撓性ボンド磁石構成体１０相互の接
合面における表面の樹脂分が一体化するように該圧延ロ
ールＲ間において押圧し、当該可撓性ボンド磁石構成体
１０を一体に連接された所定厚みの接合体２０とし、且
つ、これを所定の長さに切断し、又は、そのままの状態
で、目的とする磁気特性を備えた可撓性ボンド磁石３０
を構成する。For example, a sheet-shaped or plate-shaped flexible bonded magnet structure 10 having a predetermined thickness obtained by dispersing a ferrite-based magnetic powder in a flexible resin binder is coated with Nd.
-A plurality of sheet-shaped or plate-shaped flexible bonded magnet structures 1 having a predetermined thickness and having a plurality of different magnetic properties and obtained by dispersing Fe-B-based magnetic powder in a flexible resin binder.
And a ferrite-based magnetic powder is further applied to the sheet- or plate-shaped flexible bonded magnet construct 10 obtained by dispersing the Nd-Fe-B-based magnetic powder in a flexible resin binder. A sheet-shaped or plate-shaped flexible bonded magnet structure 10 having a predetermined thickness obtained by being dispersed in a flexible resin binder is provided in an overlapping state, and each of the flexible bonded magnet structures stacked in the multilayer state is provided. The flexible body 10 is guided between the rolling rolls R, and pressed between the rolling rolls R so that the resin component on the surface at the joint surface between the flexible bonded magnet structures 10 is integrated. A flexible bonded magnet having a desired magnetic property in a state where the magnet assembly 10 is formed into a joined body 20 having a predetermined thickness integrally connected and cut into a predetermined length, or as it is. 30
Is configured.
【００３８】このように磁気特性の異なる二種以上の可
撓性ボンド磁石構成体１０を用意すると共に、少なくと
も一つの可撓性ボンド磁石構成体１０が、他の可撓性ボ
ンド磁石構成体１０と異なる磁気特性の可撓性ボンド磁
石構成体１０となるように、複数個の可撓性ボンド磁石
構成体１０によって接合体２０を構成し、目的とする磁
気特性を有する可撓性ボンド磁石３０を構成するように
してあることから、用意される前記磁気特性の異なる複
数の可撓性ボンド磁石構成体１０の組み合わせ使用によ
って、各種の磁気特性を備えた可撓性ボンド磁石３０を
容易に、且つ、必要とされる数量分のみを、比較的廉価
な成形コストによって構成提供することができ、夫々に
磁気特性を異にする多品種の可撓性ボンド磁石３０の低
コストによる少量生産が可能とされる。As described above, two or more kinds of flexible bonded magnet structures 10 having different magnetic properties are prepared, and at least one flexible bonded magnet structure 10 is replaced with another flexible bonded magnet structure 10. The bonded body 20 is constituted by the plurality of flexible bonded magnet structures 10 so as to obtain the flexible bonded magnet structure 10 having magnetic properties different from those of the flexible bonded magnet structure 30 having the desired magnetic characteristics. Therefore, by using a combination of a plurality of flexible bonded magnet structures 10 having different magnetic characteristics, the flexible bonded magnet 30 having various magnetic characteristics can be easily formed. In addition, only the required quantity can be provided and provided at a relatively low molding cost, and a small amount due to the low cost of various kinds of flexible bond magnets 30 having different magnetic properties. Production is possible.
【００３９】また、磁気特性の異なる二種以上の可撓性
ボンド磁石構成体１０を用意すると共に、少なくとも一
つの可撓性ボンド磁石構成体１０が、他の可撓性ボンド
磁石構成体１０と異なる磁気特性の可撓性ボンド磁石構
成体１０となるように、複数個の可撓性ボンド磁石構成
体１０によって接合体２０を構成し、目的とする磁気特
性を有する可撓性ボンド磁石３０を構成するようするよ
うにしてあることから、構成単体である各可撓性ボンド
磁石構成体１０を、当該各可撓性ボンド磁石構成体１０
に含まれる硬質磁性粉末が最も効果的な容積比において
当該各可撓性ボンド磁石構成体１０に含まれるように構
成することができる。In addition, two or more kinds of flexible bonded magnet structures 10 having different magnetic properties are prepared, and at least one flexible bonded magnet structure 10 is different from other flexible bonded magnet structures 10. A bonded body 20 is formed by a plurality of flexible bonded magnet structures 10 so as to form flexible bonded magnet structures 10 having different magnetic properties, and a flexible bonded magnet 30 having desired magnetic characteristics is formed. Since each of the flexible bond magnet structures 10 is a single unit, the flexible bond magnet structures 10
Can be configured so that the hard magnetic powder contained in each of the flexible bonded magnet components 10 has the most effective volume ratio.
【００４０】また、かかる点から、例えば、構成される
可撓性ボンド磁石３０における磁気特性を低めるため
に、可撓性樹脂バインダーに分散用いられる硬質磁性粉
末、例えば、合金系磁性粉末、より具体的には、Ｎｄ−
Ｆｅ−Ｂ系磁性粉末の充填量を減ずる必要がなく、寸法
安定性の良い可撓性ボンド磁石構成体１０を構成するこ
とができる。In view of the above, for example, in order to reduce the magnetic properties of the flexible bonded magnet 30 to be configured, hard magnetic powders dispersed in a flexible resin binder, for example, alloy magnetic powders, more specifically, Specifically, Nd-
It is not necessary to reduce the filling amount of the Fe-B-based magnetic powder, and the flexible bonded magnet construct 10 having good dimensional stability can be configured.
【００４１】また、かかる点から、例えば、構成される
可撓性ボンド磁石３０における磁気特性を高めるため
に、可撓性樹脂バインダーに分散用いられる硬質磁性粉
末、例えば、フェライト系磁性粉末を無理に可撓性樹脂
バインダー中に分散用いる必要がなく、安定した強度を
有する可撓性ボンド磁石構成体１０を構成することがで
きる。From this point, for example, in order to enhance the magnetic properties of the flexible bond magnet 30 to be constructed, a hard magnetic powder, for example, a ferrite-based magnetic powder that is dispersed in a flexible resin binder is forcibly applied. It is not necessary to disperse and use in the flexible resin binder, and the flexible bonded magnet construct 10 having stable strength can be formed.
【００４２】また、磁気特性の異なる二種以上の可撓性
ボンド磁石構成体１０を用意すると共に、少なくとも一
つの可撓性ボンド磁石構成体１０が、他の可撓性ボンド
磁石構成体１０と異なる磁気特性の可撓性ボンド磁石構
成体１０となるように、複数個の可撓性ボンド磁石構成
体１０によって接合体２０を構成し、目的とする磁気特
性を有する可撓性ボンド磁石３０を構成するようするよ
うにしてあることから、構成される可撓性ボンド磁石３
０の磁気特性を高めるために、磁気特性の低い硬質磁性
粉末に磁気特性の高い硬質磁性粉末を混合して用いる必
要がなく、磁気特性の低い硬質磁性粉末、例えば、フェ
ライト系磁性粉末のような微粉状をなす硬質磁性粉末を
可撓性樹脂バインダー中に分散して得られる可撓性ボン
ド磁石構成体１０の強度をそのまま維持した状態で、当
該フェライト系磁性粉末を可撓性樹脂バインダー中に分
散して得られる可撓性ボンド磁石３０よりも磁気特性の
高い可撓性ボンド磁石３０を成形提供することができ
る。In addition, two or more kinds of flexible bonded magnet structures 10 having different magnetic properties are prepared, and at least one flexible bonded magnet structure 10 is different from other flexible bonded magnet structures 10. A bonded body 20 is formed by a plurality of flexible bonded magnet structures 10 so as to form flexible bonded magnet structures 10 having different magnetic properties, and a flexible bonded magnet 30 having desired magnetic characteristics is formed. The flexible bond magnet 3 that is configured
It is not necessary to mix hard magnetic powder having high magnetic properties with hard magnetic powder having low magnetic properties in order to enhance the magnetic properties of the hard magnetic powder having low magnetic properties, such as hard magnetic powder having low magnetic properties, such as ferrite-based magnetic powder. While maintaining the strength of the flexible bonded magnet structure 10 obtained by dispersing the fine magnetic hard magnetic powder in the flexible resin binder, the ferrite magnetic powder is added to the flexible resin binder. A flexible bonded magnet 30 having higher magnetic properties than the flexible bonded magnet 30 obtained by dispersion can be formed and provided.
【００４３】このように微細な硬質磁性粉末、例えばフ
ェライト系磁性粉末を可撓性樹脂バインダー中に分散し
て得られる強度の大きい可撓性ボンド磁石構成体１０
と、比較的大きい粒径の硬質磁性粉末を含む合金系磁性
粉末、例えば、Ｎｄ−Ｆｅ−Ｂ系磁性粉末を可撓性樹脂
バインダー中に分散して得られる強度の小さい可撓性ボ
ンド磁石構成体１０とを互いに一以上を含むように接合
一体として接合体２０を構成することによって、この互
いに接合一体とされる各可撓性ボンド磁石構成体１０に
おいて前記強度の強い可撓性ボンド磁石構成体１０が、
強度の弱い可撓性ボンド磁石構成体１０を補強し、前記
フェライト系磁性粉末と合金系磁性粉末を混合して可撓
性樹脂バインダー中に分散して得られる可撓性ボンド磁
石構成体１０よりも強度の大きい接合体２０を構成する
ことができる。The flexible bonded magnet structure 10 having high strength obtained by dispersing such fine hard magnetic powder, for example, ferrite magnetic powder in a flexible resin binder.
And a low-strength flexible bond magnet obtained by dispersing an alloy-based magnetic powder containing a hard magnetic powder having a relatively large particle size, for example, an Nd-Fe-B-based magnetic powder in a flexible resin binder. By forming the joined body 20 as a unitary body so as to include at least one body 10 with each other, the flexible bond magnet structure having the strong strength in each of the flexible bonded magnet units 10 joined together. Body 10
From the flexible bonded magnet structure 10 obtained by reinforcing the flexible bonded magnet structure 10 having low strength, mixing the ferrite-based magnetic powder and the alloy-based magnetic powder, and dispersing the mixture in a flexible resin binder. Also, the joined body 20 having high strength can be formed.
【００４４】かかる可撓性ボンド磁石３０を構成する接
合体２０における補強は、フェライト系磁性粉末を可撓
性樹脂バインダー中に分散して得られるシート状の可撓
性ボンド磁石構成体１０と、合金系磁性粉末、例えば、
Ｎｄ−Ｆｅ−Ｂ系磁性粉末を可撓性樹脂バインダー中に
分散して得られるシート状の可撓性ボンド磁石構成体１
０とを互いに一以上を含むように接合一体としてシート
状の接合体２０を構成した場合における当該シート状の
接合体２０及び当該接合体２０からなるシート状の可撓
性ボンド磁石３０の取扱性を、前記フェライト系磁性粉
末と合金系磁性粉末を混合して可撓性樹脂バインダー中
に分散して得られる可撓性ボンド磁石構成体よりも良好
とすることができる。The reinforcement of the bonded body 20 constituting the flexible bonded magnet 30 is achieved by dispersing a ferrite-based magnetic powder in a flexible resin binder, and forming a sheet-shaped flexible bonded magnet body 10. Alloy-based magnetic powder, for example,
Sheet-shaped flexible bonded magnet construct 1 obtained by dispersing Nd-Fe-B-based magnetic powder in a flexible resin binder
And the sheet-like joined body 20 and the sheet-like flexible bonded magnet 30 made of the joined body 20 when the sheet-like joined body 20 is integrally formed so as to be joined together so as to include one or more zeros. Can be better than a flexible bonded magnet structure obtained by mixing the ferrite-based magnetic powder and the alloy-based magnetic powder and dispersing them in a flexible resin binder.
【００４５】また、接合される複数の可撓性ボンド磁石
構成体１０によって構成される接合体２０が目的とされ
る磁気特性を有するように、磁気特性の異なる二種以上
の且つ所定の厚みからなるシート状又は板状をなす可撓
性ボンド磁石構成体１０を用意すると共に、少なくとも
一つの可撓性ボンド磁石構成体１０を他の可撓性ボンド
磁石構成体１０と異なる磁気特性の可撓性ボンド磁石構
成体１０として、当該可撓性ボンド磁石構成体１０の複
数個を重ね合わせの状態とし、これを圧延ロールＲ間に
案内して、当該複数の可撓性ボンド磁石構成体１０を、
互いの接合面の樹脂分が互いに一体化するように押圧、
圧着し、前記複数の各可撓性ボンド磁石構成体１０を所
定厚みの一体の接合体２０になすと共に、目的の磁気特
性、より具体的には、前記接合体２０を構成する各可撓
性ボンド磁石構成体１０に含まれる夫々の硬質磁性粉末
の容積比からもたらされる磁気特性を備えた可撓性ボン
ド磁石３０を構成する手法にあっては、かかる可撓性ボ
ンド磁石３０を構成する接合体２０の構成単体であるシ
ート状又は板状をなす各可撓性ボンド磁石構成体１０相
互が、圧延ロールＲによる圧延によって当該シート状又
は板状をなす各可撓性ボンド磁石構成体１０相互の接合
面の表面の樹脂分を互いに一体化し、相互にずれなく接
合され、前記接合体２０を構成する所定厚みの各可撓性
ボンド磁石構成体１０相互の厚みの比率が、当該圧延ロ
ールＲによる圧延によって変化することがなく、当該圧
延ロールＲによる圧延前における各可撓性ボンド磁石構
成体１０相互の厚みの比率と、当該圧延後のおける各可
撓性ボンド磁石構成体１０相互における厚みの比率とが
一定とされ、可撓性ボンド磁石３０を構成する接合体２
０の構成単体である各可撓性ボンド磁石構成体１０の選
択的な使用によって、これら接合体２０を構成する各可
撓性ボンド磁石構成体１０の中間磁気特性を備えた可撓
性ボンド磁石３０を容易且つ確実に得ることができる。In addition, two or more kinds of magnetic materials having different magnetic properties and a predetermined thickness are used so that the joined body 20 constituted by the plurality of bonded flexible magnet structures 10 to have the desired magnetic properties. A flexible bonded magnet structure 10 in the form of a sheet or a plate is prepared, and at least one flexible bonded magnet structure 10 is made of a flexible material having magnetic properties different from those of the other flexible bonded magnet structures 10. As the flexible bonded magnet structure 10, a plurality of the flexible bonded magnet structures 10 are put in a superposed state, and guided between the rolling rolls R, and the flexible bonded magnet structures 10 are separated. ,
Pressing so that the resin components of the joining surfaces are integrated with each other,
By crimping, the plurality of flexible bonded magnet constructs 10 are formed into an integrated joined body 20 having a predetermined thickness, and the desired magnetic properties, more specifically, the flexibility of each of the joined bodies 20 In the method of constructing the flexible bond magnet 30 having the magnetic properties resulting from the volume ratio of each hard magnetic powder included in the bond magnet construct 10, the joining of the flexible bond magnet 30 is performed. Each of the sheet-shaped or plate-shaped flexible bonded magnet structures 10 which are the constituents of the body 20 is mutually rolled by the rolling roll R. The resin component on the surface of the bonding surface of the above is integrated with each other and bonded without displacement, and the ratio of the thickness of each flexible bonded magnet structure 10 having a predetermined thickness constituting the bonded body 20 is determined by the rolling roll R By rolling Therefore, there is no change, and the ratio of the thickness of each flexible bonded magnet structure 10 before rolling by the rolling roll R and the ratio of the thickness of each flexible bonded magnet structure 10 after rolling. Is fixed, and the joined body 2 constituting the flexible bonded magnet 30 is
The flexible bond magnet having intermediate magnetic properties of each of the flexible bond magnet assemblies 10 constituting the joined body 20 by selectively using each of the flexible bond magnet assemblies 10 which are the constituents of FIG. 30 can be obtained easily and reliably.
【００４６】即ち、可撓性ボンド磁石３０にもたらされ
る磁気特性は、この可撓性ボンド磁石３０を構成する接
合体２０の構成単体であるシート状又は板状をなす各可
撓性ボンド磁石構成体１０の厚みの比率によって規定さ
れることとなり、例えば、磁気特性の高い可撓性ボンド
磁石構成体１０の厚みが厚ければ可撓性ボンド磁石３０
にもたらされる磁気特性が高く、磁気特性の低い可撓性
ボンド磁石構成体１０の厚みが厚ければ可撓性ボンド磁
石３０にもたらされる磁気特性が低くなり、この可撓性
ボンド磁石３０を構成する各可撓性ボンド磁石構成体１
０の厚さの比率によって、目的とする磁気特性を備えた
可撓性ボンド磁石３０を構成することができると共に、
当該各可撓性ボンド磁石構成体１０の圧延ロールＲによ
る圧延によって当該各可撓性ボンド磁石構成体１０によ
って構成される接合体２０の厚みが薄くなった場合にあ
っても、各可撓性ボンド磁石構成体１０相互における厚
みの比率に変化を生ずることがなく、目的とする磁気特
性を備えた可撓性ボンド磁石３０を容易且つ確実に得る
ことができる。That is, the magnetic characteristics brought to the flexible bonded magnet 30 are the same as those of the flexible bonded magnet 30 in the form of a sheet or a plate, which is a single component of the joined body 20 constituting the flexible bonded magnet 30. The thickness of the flexible bonded magnet 30 is determined by the ratio of the thickness of the body 10.
When the thickness of the flexible bonded magnet construct 10 having high magnetic properties and low magnetic properties is increased, the magnetic properties provided to the flexible bonded magnet 30 are reduced, and the flexible bonded magnet 30 is formed. Flexible bonded magnet structure 1
With the thickness ratio of 0, the flexible bonded magnet 30 having the desired magnetic properties can be formed,
Even when the thickness of the joined body 20 formed by each of the flexible bonded magnet structures 10 is reduced by the rolling of the flexible bonded magnet structures 10 by the rolling rolls R, the flexibility of each of the flexible bonded magnet structures 10 is reduced. It is possible to easily and reliably obtain the flexible bonded magnet 30 having the desired magnetic properties without changing the thickness ratio between the bonded magnet structures 10.
【００４７】実施例１ フェライト系磁性粉末９０ｗｔ％とゴム１０ｗｔ％とを
混練した後、これを解砕状に粉砕すると共に圧延ロール
間においてシート状とし、 （１） シート厚が２．４ｍｍのシート状フェライト系
可撓性ボンド磁石構成体１０’と、 （２） シート厚が０．９ｍｍのシート状フェライト系
可撓性ボンド磁石構成体１０’と、 （３） シート厚が０．８ｍｍのシート状フェライト系
可撓性ボンド磁石構成体１０’とを得た。又、Ｎｄ−Ｆ
ｅ−Ｂ系磁性粉末９５ｗｔ％とゴム５ｗｔ％とを混練し
た後、これを解砕状に粉砕すると共に圧延ロールＲ間に
おいてシート状とし、 （４） シート厚が１．２ｍｍのシート状Ｎｄ−Ｆｅ−
Ｂ系可撓性ボンド磁石構成体１０’と、 （５） シート厚が１．２ｍｍのシート状Ｎｄ−Ｆｅ−
Ｂ系可撓性ボンド磁石構成体１０’と、 （６） シート厚が２．４ｍｍのシート状Ｎｄ−Ｆｅ−
Ｂ系可撓性ボンド磁石構成体１０’とを得た。Example 1 A ferrite-based magnetic powder (90 wt%) and rubber (10 wt%) were kneaded, pulverized into a crushed shape and formed into a sheet between rolling rolls. (1) Sheet having a sheet thickness of 2.4 mm And (2) a sheet-like ferrite-based flexible bonded magnet construct 10 'having a sheet thickness of 0.9 mm; and (3) a sheet having a sheet thickness of 0.8 mm. A ferrite flexible bonded magnet construct 10 'was obtained. Also, Nd-F
After kneading 95% by weight of the EB-based magnetic powder and 5% by weight of rubber, the mixture is pulverized into a crushed shape and formed into a sheet between rolling rolls R. (4) Sheet-shaped Nd- having a sheet thickness of 1.2 mm Fe-
(5) a sheet-like Nd-Fe- sheet having a sheet thickness of 1.2 mm;
(6) a sheet-like Nd-Fe- sheet having a sheet thickness of 2.4 mm;
A B-based flexible bonded magnet construct 10 'was obtained.
【００４８】このようにして得られた一枚のシート状Ｎ
ｄ−Ｆｅ−Ｂ系可撓性ボンド磁石構成体１０’Ｂの両面
にシート状フェライト系可撓性ボンド磁石構成体１０’
Ａを重ね合わせると共に、これを第１の圧延ロールＲ１
間において一体化し、次いで、これを第２の圧延ロール
Ｒ２間において厚さ調整をしてシート状の三層構造の接
合体２０’とし、三種類の可撓性ボンド磁石３０’を得
た。（図４及び図５参照）The single sheet N thus obtained
Sheet-shaped ferrite-based flexible bonded magnet structure 10 'on both sides of d-Fe-B based flexible bonded magnet structure 10'B
A and superimposing the first rolling roll R1
Then, the thickness was adjusted between the second rolling rolls R2 to obtain a sheet-like joined body 20 ′ having a three-layer structure, and three types of flexible bonded magnets 30 ′ were obtained. (See FIGS. 4 and 5)
【００４９】（１）第１のシート状可撓性ボンド磁石３
０’Ａ 前記シート厚が１．２ｍｍのシート状Ｎｄ−Ｆｅ−Ｂ系
可撓性ボンド磁石構成体１０’Ｂの両面に前記シート厚
が２．４ｍｍのシート状フェライト系可撓性ボンド磁石
構成体１０’Ａを重ね合わせ、これを第１の圧延ロール
Ｒ１間において一体化し、次いで、これを第２の圧延ロ
ールＲ２間において厚さ調整をしてシート状の三層構造
の第１のシート状可撓性ボンド磁石３０’Ａを得た。こ
の第１のシート状可撓性ボンド磁石３０’Ａにおける前
記Ｎｄ−Ｆｅ−Ｂ系可撓性ボンド磁石構成体対二層から
なるフェライト系可撓性ボンド磁石構成体の容積比は、
２０：８０である。 （２）第２のシート状可撓性ボンド磁石３０’Ｂ 前記シート厚が１．２ｍｍのシート状Ｎｄ−Ｆｅ−Ｂ系
可撓性ボンド磁石構成体１０’Ｂの両面に前記シート厚
が０．９ｍｍのシート状フェライト系可撓性ボンド磁石
構成体１０’Ａを重ね合わせ、これを第１の圧延ロール
Ｒ１間において一体化し、次いで、これを第２の圧延ロ
ールＲ２間において厚さ調整をしてシート状の三層構造
の第２のシート状可撓性ボンド磁石３０’Ｂを得た。こ
の第２シート状可撓性ボンド磁石３０’Ｂにおける前記
Ｎｄ−Ｆｅ−Ｂ系可撓性ボンド磁石構成体対二層からな
るフェライト系可撓性ボンド磁石構成体の容積比は、４
０：６０である。 （３）第３のシート状可撓性ボンド磁石３０’Ｃ 前記シート厚が２．４ｍｍのシート状Ｎｄ−Ｆｅ−Ｂ系
可撓性ボンド磁石構成体１０’Ｂの両面に前記シート厚
が０．８ｍｍのシート状フェライト系可撓性ボンド磁石
構成体１０’Ａを重ね合わせ、これを第１の圧延ロール
Ｒ１間において一体化し、次いで、これを第２の圧延ロ
ールＲ２間において厚さ調整をしてシート状の三層構造
の第３のシート状可撓性ボンド磁石３０’Ｃを得た。こ
の第３ート状可撓性ボンド磁石３０’Ｃにおける前記Ｎ
ｄ−Ｆｅ−Ｂ系可撓性ボンド磁石構成体対二層からなる
フェライト系磁性粉末の容積比は、６０：４０である。(1) First sheet-like flexible bonded magnet 3
0'A A sheet-like ferrite-based flexible bonded magnet having a sheet thickness of 2.4 mm is formed on both sides of a sheet-shaped Nd-Fe-B-based flexible bonded magnet constituting body 10'B having a sheet thickness of 1.2 mm. The body 10'A is overlapped and integrated between the first rolling rolls R1, and then the thickness thereof is adjusted between the second rolling rolls R2 to form a first sheet having a sheet-like three-layer structure. A flexible flexible bonded magnet 30′A was obtained. The volume ratio of the Nd—Fe—B-based flexible bonded magnet structure to the ferrite-based flexible bonded magnet structure having two layers in the first sheet-shaped flexible bonded magnet 30′A is as follows:
20:80. (2) Second sheet-like flexible bonded magnet 30′B The sheet thickness is 0 on both sides of the sheet-shaped Nd—Fe—B-based flexible bonded magnet construct 10′B having a sheet thickness of 1.2 mm. .9 mm sheet-like ferrite-based flexible bonded magnet structure 10 ′ A is overlapped, integrated between the first rolling rolls R 1, and then adjusted in thickness between the second rolling rolls R 2. Thus, a second sheet-like flexible bonded magnet 30′B having a sheet-like three-layer structure was obtained. The volume ratio of the Nd-Fe-B-based flexible bonded magnet structure to the ferrite-based flexible bonded magnet structure composed of two layers in the second sheet-shaped flexible bonded magnet 30'B is 4
0:60. (3) Third sheet-like flexible bond magnet 30'C The sheet thickness is 0 on both sides of the sheet-like Nd-Fe-B-based flexible bond magnet construct 10'B having a sheet thickness of 2.4 mm. .8 mm sheet-like ferrite-based flexible bonded magnet structure 10 ′ A are overlapped, integrated between the first rolling rolls R 1, and then adjusted in thickness between the second rolling rolls R 2. Thus, a third sheet-like flexible bonded magnet 30′C having a sheet-like three-layer structure was obtained. In the third toe-shaped flexible bond magnet 30'C, the N
The volume ratio of the d-Fe-B-based flexible bonded magnet structure to the ferrite-based magnetic powder composed of two layers is 60:40.
【００５０】このようにして得られた各可撓性ボンド磁
石３０’Ａ、３０’Ｂ、３０’Ｃにおける磁気特性を、
Ｂ−Ｈカーブトレーサーで測定し、これを、図６におい
てＩ−Ｈ曲線として、図７においてＢ−Ｈ曲線として示
すと共に、この各実施例にかかる第１〜第３の各シート
状可撓性ボンド磁石３０’Ａ、３０’Ｂ、３０’Ｃに対
応するの比較例として、 （４） フェライト系磁性粉末９０ｗｔ％とゴム１０ｗ
ｔ％とを混練した後、これを解砕状に粉砕すると共に圧
延ロール間においてシート状とし、第１比較例のシート
状可撓性ボンド磁石（図６及び図７において３０’Ｄと
して示す。）と、 （５） Ｎｄ−Ｆｅ−Ｂ系磁性粉末９５ｗｔ％とゴム５
ｗｔ％とを混練した後、これを解砕状に粉砕すると共に
圧延ロール間においてシート状とし、第２比較例のシー
ト状可撓性ボンド磁石（図６及び図７において３０’Ｅ
として示す。）との各磁気特性を前記Ｂ−Ｈカーブトレ
ーサーによって測定して、これを当該図６及び図７に比
較例として示した。The magnetic characteristics of the flexible bond magnets 30'A, 30'B, 30'C obtained in this way are as follows:
It is measured by a BH curve tracer, which is shown as an IH curve in FIG. 6 and as a BH curve in FIG. 7, and each of the first to third sheet-like flexible materials according to each of the examples. As a comparative example corresponding to the bonded magnets 30′A, 30′B, 30′C, (4) Ferrite magnetic powder 90 wt% and rubber 10w
After kneading with t%, the mixture is pulverized into a crushed shape and formed into a sheet between rolling rolls. The sheet-like flexible bonded magnet of the first comparative example (shown as 30′D in FIGS. 6 and 7). (5) Nd-Fe-B-based magnetic powder 95% by weight and rubber 5
wt%, and then pulverized to a crushed shape and formed into a sheet between rolling rolls. The sheet-like flexible bonded magnet of the second comparative example (30′E in FIGS. 6 and 7)
As shown. ) Were measured by the BH curve tracer, and the results are shown in FIGS. 6 and 7 as comparative examples.
【００５１】「引張り強さの比較」 次いで前記実施の形態に係る可撓性ボンド磁石３０”を
構成する接合体２０”と、他の可撓性ボンド磁石を構成
する比較例としての可撓性ボンド磁石構成体との強度の
比較を行ったところ、以下のような引張り強さにおける
差が認められた。 （１） 強度実験に用いられる本実施例の接合体２
０”： フェライト系磁性粉末９０ｗｔ％とゴム１０ｗｔ％とを
混練した後、これを解砕状に粉砕すると共に圧延ロール
間においてシート状としたシート状フェライト系可撓性
ボンド磁石構成体１０”と、Ｎｄ−Ｆｅ−Ｂ系磁性粉末
９５ｗｔ％とゴム５ｗｔ％とを混練した後、これを解砕
状に粉砕すると共に圧延ロール間においてシート状とし
たシート状Ｎｄ−Ｆｅ−Ｂ系可撓性ボンド磁石構成体１
０”とを、容積比で５０：５０となるように重ね合わせ
の状態とし、これを圧延ロールＲ間において一体化し、
厚さ調整をして可撓性ボンド磁石３０”を構成する強度
実験例としてのシート状の接合体２０”を得た。（図８
及び図９参照） （２） 強度実験に用いられる第１比較例の可撓性ボン
ド磁石構成体： フェライト系磁性粉末３４．９ｗｔ％と、Ｎｄ−Ｆｅ−
Ｂ系磁性粉末５８．２ｗｔ％と、ゴム６．９ｗｔ％とを
混練し、シート状として、フェライト系シート部とＮｄ
−Ｆｅ−Ｂ系シート部の容積比が５０：５０となるよう
に比較例としての可撓性ボンド磁石構成体を得た。 （３） 強度実験に用いられる第２比較例の可撓性ボン
ド磁石構成体： フェライト系磁性粉末９０ｗｔ％とゴム１０ｗｔ％とを
混練した後、これを解砕状に粉砕すると共に圧延ロール
間においてシート状とし、可撓性ボンド磁石を構成する
比較例としての可撓性ボンド磁石構成体を得た。 （４） 強度実験に用いられる第３比較例の可撓性ボン
ド磁石構成体： Ｎｄ−Ｆｅ−Ｂ系磁性粉末９５ｗｔ％とゴム５ｗｔ％と
を混練した後、これを解砕状に粉砕すると共に圧延ロー
ル間においてシート状とし、可撓性ボンド磁石を構成す
る比較例としての可撓性ボンド磁石構成体を得た。"Comparison of Tensile Strength" Next, the bonded body 20 "constituting the flexible bonded magnet 30" according to the above embodiment and the flexibility as a comparative example constituting another flexible bonded magnet are described. When the strength was compared with that of the bonded magnet structure, the following differences in tensile strength were observed. (1) Joint 2 of the present example used for strength experiment
0 ″: 90% by weight of ferrite magnetic powder and 10% by weight of rubber are kneaded, then pulverized to a crushed shape, and formed into a sheet-shaped ferrite-based flexible bonded magnet structure 10 ″ formed into a sheet between rolling rolls. , Nd-Fe-B-based magnetic powder (95 wt%) and rubber (5 wt%) are kneaded, crushed into crushed shapes, and formed into a sheet-like Nd-Fe-B-based flexible bond between rolling rolls. Magnet structure 1
0 "and a volume ratio of 50:50 in a superimposed state, which are integrated between the rolling rolls R,
By adjusting the thickness, a sheet-like joined body 20 "as a strength experiment example constituting a flexible bonded magnet 30" was obtained. (FIG. 8
(See FIG. 9) (2) Flexible Bonded Magnet Construct of First Comparative Example Used in Strength Experiment: Ferrite-based magnetic powder 34.9 wt% and Nd—Fe—
58.2 wt% of B-based magnetic powder and 6.9 wt% of rubber are kneaded to form a ferrite sheet portion and Nd.
A flexible bonded magnet structure as a comparative example was obtained so that the volume ratio of the Fe-B-based sheet portion was 50:50. (3) Flexible bonded magnet structure of the second comparative example used in the strength test: After kneading 90 wt% of ferrite-based magnetic powder and 10 wt% of rubber, pulverize this into a crushed shape and at the same time between rolling rolls. A flexible bonded magnet structure as a comparative example, which was formed into a sheet and formed a flexible bonded magnet, was obtained. (4) Flexible Bonded Magnet Construct of Third Comparative Example Used for Strength Experiment: After kneading 95% by weight of Nd-Fe-B-based magnetic powder and 5% by weight of rubber, pulverize this into a crushed shape. A flexible bonded magnet structure as a comparative example, which was formed into a sheet between rolling rolls to form a flexible bonded magnet, was obtained.
【００５２】このようにして得られた強度実験に用いら
れる本実施例の接合体２０”と、強度実験に用いられる
第１比較例の可撓性ボンド磁石構成体、同強度実験に用
いられる第２比較例の可撓性ボンド磁石構成体、同強度
実験に用いられる第３比較例の可撓性ボンド磁石構成体
とを「ＪＩＳ Ｋ ６２５１」に規定する「加硫ゴムの
引張試験方法」と同一の方法で測定したところ、強度実
験に用いられる本実施例の接合体２０”及び第１〜第３
比較例の各可撓性ボンド磁石構成体の引張強さは以下の
通りであった。The joined body 20 ″ of the present example used in the strength experiment obtained in this way, the flexible bonded magnet structure of the first comparative example used in the strength experiment, 2 The flexible bonded magnet structure of the comparative example and the flexible bonded magnet structure of the third comparative example used in the same strength test were described as “Vulcanized rubber tensile test method” specified in “JIS K6251”. When measured by the same method, the joined body 20 ″ and the first to third joints of the present example used in the strength test
The tensile strength of each flexible bonded magnet structure of the comparative example was as follows.
【００５３】（１）強度実験に用いられる本実施例の接
合体２０”における 熱処理前の引張強さは ５６ｋｇｆ／ｃｍ2 熱処理後の引張強さは ６６ｋｇｆ／ｃｍ2 （２）強度実験に用いられる第１比較例の可撓性ボンド
磁石構成体における 熱処理前の引張強さは ４４ｋｇｆ／ｃｍ2 熱処理後の引張強さは ６１ｋｇｆ／ｃｍ2 （３）強度実験に用いられる第２比較例の可撓性ボンド
磁石構成体における 熱処理前の引張強さは ８０ｋｇｆ／ｃｍ2 熱処理後の引張強さは ８５ｋｇｆ／ｃｍ2 （４）強度実験に用いられる第３比較例の可撓性ボンド
磁石構成体における 熱処理前の引張強さは ３０ｋｇｆ／ｃｍ2 熱処理後の引張強さは ５８ｋｇｆ／ｃｍ2 であった。(1) Tensile strength before heat treatment of the bonded body 20 ″ of the present example used for strength test is 56 kgf / cm 2 , and tensile strength after heat treatment is 66 kgf / cm 2 (2) Used for strength test The tensile strength of the flexible bonded magnet structure of the first comparative example before the heat treatment was 44 kgf / cm 2 , and the tensile strength after the heat treatment was 61 kgf / cm 2 (3) The flexibility of the second comparative example used in the strength test The tensile strength of the flexible bonded magnet structure before heat treatment was 80 kgf / cm 2 , and the tensile strength after heat treatment was 85 kgf / cm 2 (4) The heat treatment of the flexible bonded magnet structure of the third comparative example used in the strength test the tensile strength of before the tensile strength after 30kgf / cm 2 heat treatment was 58kgf / cm 2.
【００５４】即ち、この実施の形態に係る接合体２０”
は、同様の磁気特性を備えるようにフェライト系磁性粉
末とＮｄ−Ｆｅ−Ｂ系磁性粉末とを含むようにゴムと混
練して得られた前記第１比較例としての可撓性ボンド磁
石構成体に対して、引張強さにおいて優れた特性を示す
ことが認められた。That is, the joined body 20 ″ according to this embodiment is
Is a flexible bonded magnet structure according to the first comparative example obtained by kneading with a rubber so as to include a ferrite-based magnetic powder and an Nd-Fe-B-based magnetic powder so as to have similar magnetic characteristics. On the other hand, it was recognized that excellent properties were exhibited in tensile strength.
【００５５】[0055]
【発明の効果】この発明に係る可撓性ボンド磁石は、互
いの接触面において相互の樹脂分が一体化するように押
圧一体とされる複数個の可撓性ボンド磁石構成体からな
り、且つ、この複数個の可撓性ボンド磁石構成体の少な
くとも一つの可撓性ボンド磁石構成体が他の可撓性ボン
ド磁石構成体と磁気特性の異なる可撓性ボンド磁石構成
体としてあり、前記複数個の可撓性ボンド磁石構成体が
磁気特性の異なる二種以上の可撓性ボンド磁石構成体に
より構成してあることから、この可撓性ボンド磁石を構
成する二種以上の磁気特性を異にする可撓性ボンド磁石
構成体を用意することによって、要請される各種の磁気
特性を有する可撓性ボンド磁石を、容易に、しかも、要
請される所期の磁気特性を備えたものとして構成、提供
することができる特長を有している。The flexible bonded magnet according to the present invention comprises a plurality of flexible bonded magnet structures which are pressed and integrated so that their resin components are integrated at the contact surfaces of each other, and Wherein at least one of the plurality of flexible bonded magnet structures is a flexible bonded magnet structure having magnetic properties different from those of the other flexible bonded magnet structures; Since each of the flexible bonded magnet structures is composed of two or more types of flexible bonded magnet structures having different magnetic properties, the two or more types of magnetic characteristics constituting the flexible bonded magnet are different. By preparing a flexible bonded magnet structure, a flexible bonded magnet having various required magnetic properties can be easily and easily provided with desired magnetic properties. Can provide It has a length.
【００５６】また、前記構成に係る可撓性ボンド磁石に
おいて、可撓性ボンド磁石が、主としてフェライト系磁
性粉末からなる硬質磁性粉末を可撓性樹脂バインダー中
に分散して得られる可撓性ボンド磁石構成体の一以上
と、主として合金系磁性粉末からなる硬質磁性粉末を可
撓性樹脂バインダー中に分散して得られる可撓性ボンド
磁石構成体の一以上とを有する構成とすることによっ
て、要請される所期の磁気特性を備えた可撓性ボンド磁
石を容易に構成できると共に、構成される可撓性ボンド
磁石が、主としてフェライト系磁性粉末からなる硬質磁
性粉末を可撓性樹脂バインダー中に分散して得られた可
撓性ボンド磁石構成体によって補強され、引張り強さを
備えた可撓性ボンド磁石を提供できる特長を有してい
る。Further, in the flexible bonded magnet according to the above configuration, the flexible bonded magnet is obtained by dispersing a hard magnetic powder mainly composed of a ferrite magnetic powder in a flexible resin binder. By having at least one magnet structure and at least one flexible bond magnet structure obtained by dispersing hard magnetic powder mainly composed of an alloy-based magnetic powder in a flexible resin binder, A flexible bonded magnet having desired magnetic properties as required can be easily formed, and the formed flexible bonded magnet is made of a hard magnetic powder mainly composed of a ferrite magnetic powder in a flexible resin binder. It is characterized by being able to provide a flexible bonded magnet having a tensile strength reinforced by a flexible bonded magnet structure obtained by dispersing the bonded magnet.
【図１】本発明の典型的な一実施の形態に係る可撓性ボ
ンド磁石を構成する各可撓性ボンド磁石構成体を示す構
成図FIG. 1 is a configuration diagram showing each flexible bonded magnet structure constituting a flexible bonded magnet according to a typical embodiment of the present invention.
【図２】同実施の形態に係る可撓性ボンド磁石を構成す
る各可撓性ボンド磁石構成体を圧延ロールによって一体
の接合体とする状態を示す構成図FIG. 2 is a configuration diagram showing a state in which each of the flexible bonded magnet components constituting the flexible bonded magnet according to the embodiment is integrally joined by a rolling roll;
【図３】同実施の形態に係る可撓性ボンド磁石の要部斜
視図FIG. 3 is a perspective view of a main part of the flexible bonded magnet according to the embodiment;
【図４】典型的な一実施例に係る可撓性ボンド磁石を構
成する各可撓性ボンド磁石構成体を圧延ロールによって
一体の接合体とする状態を示す構成図FIG. 4 is a configuration diagram showing a state in which each of the flexible bonded magnet structures constituting the flexible bonded magnet according to one exemplary embodiment is integrally joined by a rolling roll.
【図５】同実施例に係る可撓性ボンド磁石の要部斜視図FIG. 5 is a perspective view of a main part of the flexible bonded magnet according to the embodiment.
【図６】同実施例に係る可撓性ボンド磁石と各比較例に
係る可撓性ボンド磁石の磁気特性を示したグラフFIG. 6 is a graph showing the magnetic characteristics of the flexible bonded magnet according to the example and the flexible bonded magnet according to each comparative example.
【図７】同実施例に係る可撓性ボンド磁石と各比較例に
係る可撓性ボンド磁石の他の磁気特性を示したグラフFIG. 7 is a graph showing other magnetic characteristics of the flexible bonded magnet according to the example and the flexible bonded magnet according to each comparative example.
【図８】典型的な他の実施例に係る可撓性ボンド磁石を
構成する各可撓性ボンド磁石構成体を圧延ロールによっ
て一体の接合体とする状態を示す構成図FIG. 8 is a configuration diagram showing a state in which each flexible bonded magnet constituting a flexible bonded magnet according to another exemplary embodiment is integrally joined by a rolling roll.
【図９】同実施例に係る可撓性ボンド磁石の要部斜視図FIG. 9 is a perspective view of a main part of the flexible bonded magnet according to the embodiment.
１０ 可撓性ボンド磁石構成体 ２０ 接合体 ３０ 可撓性ボンド磁石 Ｒ 圧延ロール DESCRIPTION OF SYMBOLS 10 Flexible bond magnet structure 20 Joined body 30 Flexible bond magnet R Rolling roll
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ２２Ｃ 38/00 ３０３ Ｃ２２Ｃ 38/00 ３０３Ｂ ３０３Ｄ (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 1/03 - 1/117 H01F 7/02 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 identification code FI C22C 38/00 303 C22C 38/00 303B 303D (58) Fields investigated (Int.Cl. 7 , DB name) H01F 1/03- 1/117 H01F 7/02
Claims (2)
体化するように押圧一体とされる複数個の可撓性ボンド
磁石構成体からなり、且つ、この複数個の可撓性ボンド
磁石構成体の少なくとも一つの可撓性ボンド磁石構成体
が他の可撓性ボンド磁石構成体と磁気特性の異なる可撓
性ボンド磁石構成体としてあると共に、前記複数個の可
撓性ボンド磁石構成体が磁気特性の異なる二種以上の可
撓性ボンド磁石構成体により構成してある可撓性ボンド
磁石であって、 前記可撓性ボンド磁石が、主としてフェライト系磁性粉
末からなる硬質磁性粉末を可撓性樹脂バインダー中に分
散して得られる可撓性ボンド磁石構成体の一以上と、主
として合金系磁性粉末からなる硬質磁性粉末を可撓性樹
脂バインダー中に分散して得られる可撓性ボンド磁石構
成体の一以上とを有する ことを特徴とする可撓性ボンド
磁石。The present invention comprises a plurality of flexible bonded magnet structures which are pressed and integrated so that mutual resin components are integrated at their contact surfaces, and the plurality of flexible bonded magnet structures. At least one flexible bonded magnet structure of the body is a flexible bonded magnet structure having magnetic properties different from other flexible bonded magnet structures, and the plurality of flexible bonded magnet structures are flexible bond are constituted by different two or more flexible bond magnet arrangement of the magnetic properties
A magnet, wherein the flexible bonded magnet is mainly composed of a ferrite-based magnetic powder.
The hard magnetic powder consisting of powder is dispersed in a flexible resin binder.
One or more flexible bonded magnet constructions
Hard magnetic powder composed of alloy magnetic powder as flexible resin
Flexible bonded magnet structure obtained by dispersing in a fat binder
A flexible bonded magnet comprising at least one of an adult .
あることを特徴とする請求項１記載の可撓性ボンド磁
石。2. The flexible bonded magnet according to claim 1, wherein the flexible bonded magnet structure is a sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30039198A JP3301730B2 (en) | 1998-10-07 | 1998-10-07 | Flexible bonded magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30039198A JP3301730B2 (en) | 1998-10-07 | 1998-10-07 | Flexible bonded magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000114021A JP2000114021A (en) | 2000-04-21 |
| JP3301730B2 true JP3301730B2 (en) | 2002-07-15 |
Family
ID=17884227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30039198A Expired - Lifetime JP3301730B2 (en) | 1998-10-07 | 1998-10-07 | Flexible bonded magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3301730B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839669A (en) * | 2014-02-28 | 2014-06-04 | 厦门钨业股份有限公司 | Composite magnet manufacturing method using neodymium iron boron magnetic sheets |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006258478A (en) * | 2005-03-15 | 2006-09-28 | Bridgestone Corp | Device for detecting wear of conveyor belt |
| JP4816146B2 (en) * | 2006-03-03 | 2011-11-16 | パナソニック株式会社 | Sheet-like rare earth bonded magnet, method of manufacturing the same, and motor using the same |
| JP5509049B2 (en) * | 2010-11-30 | 2014-06-04 | Ｔｈｋ株式会社 | Magnetic encoder, actuator |
| JP6778651B2 (en) * | 2017-05-24 | 2020-11-04 | Tdk株式会社 | Iron nitride based bond magnet |
-
1998
- 1998-10-07 JP JP30039198A patent/JP3301730B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839669A (en) * | 2014-02-28 | 2014-06-04 | 厦门钨业股份有限公司 | Composite magnet manufacturing method using neodymium iron boron magnetic sheets |
| CN103839669B (en) * | 2014-02-28 | 2016-06-29 | 厦门钨业股份有限公司 | With the method that ndfeb disk manufactures built-up magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000114021A (en) | 2000-04-21 |
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