JPS6375080A - Soft magnetic adhesive - Google Patents
Soft magnetic adhesiveInfo
- Publication number
- JPS6375080A JPS6375080A JP22047586A JP22047586A JPS6375080A JP S6375080 A JPS6375080 A JP S6375080A JP 22047586 A JP22047586 A JP 22047586A JP 22047586 A JP22047586 A JP 22047586A JP S6375080 A JPS6375080 A JP S6375080A
- Authority
- JP
- Japan
- Prior art keywords
- soft magnetic
- adhesive
- present
- magnetic material
- excitation type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 32
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 32
- 239000000696 magnetic material Substances 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 abstract description 12
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 7
- 229910002555 FeNi Inorganic materials 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 101100390562 Mus musculus Fen1 gene Proteins 0.000 description 1
- 101100119953 Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1) fen gene Proteins 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明は高分子接着剤中（ユ微粉末の軟磁性材料を分散
混入せしめたものであって、主磁極励磁型ヘッドの形成
に特に好適な軟磁性接着剤（：関する。Detailed Description of the Invention Technical Field The present invention relates to a polymer adhesive in which a soft magnetic material in the form of fine powder is dispersed and is particularly suitable for forming a main pole excitation type head. (: related.
従来技術
一般に、各種媒体Ｃ記録、再生、消失を行う場合、記録
方向が長手方向であったが、記録密度、再生特性の向上
の点から記録方向が垂直方向とした媒体およびそれ（：
用いる磁気ヘッドが開発された。このような垂直ヘッド
としては媒体Ｃ；鋭い垂直磁界を加えることができる主
磁極励磁型ヘッドが種々開発されている。この主磁極励
磁型ヘッドは第２図に示されるよう（−１主磁極として
の軟磁性膜１とコイル３が巻かれたフェライト４とを接
着剤２で接合して形成されるものである。しかしながら
、近時（：おいてヘッドの小型化、特（：主磁極長の短
小化の傾向（：伴い、主磁極長（二対して接着剤層の相
対的厚さが増大し、もれ磁束が多くなり、記録感度、再
生感度が低下するという問題点があった。PRIOR ART In general, when recording, reproducing, and erasing data on various media, the recording direction is longitudinal, but from the viewpoint of improving recording density and reproduction characteristics, the recording direction is perpendicular to media and media (:
A magnetic head for use was developed. As such a perpendicular head, various main pole excitation type heads have been developed, such as medium C; which can apply a sharp perpendicular magnetic field. As shown in FIG. 2, this main pole excitation type head is formed by bonding a soft magnetic film 1 serving as a -1 main pole and a ferrite 4 around which a coil 3 is wound with an adhesive 2. However, in recent years, with the trend of miniaturization of heads, especially the tendency to shorten and shorten the main pole length (:), the relative thickness of the adhesive layer has increased with respect to the main pole length (2), and leakage magnetic flux has increased. There was a problem in that the recording sensitivity and reproduction sensitivity were lowered.
目 的
本発明は接着剤それ自体シニ軟磁性特性を付与するとと
もに軟磁気特性を自由１：選択でき、しかも任意の粘度
を有し、例えば主磁極励磁部ヘッドに使用した場合、前
述した問題点を改善し得る軟磁性接着剤を提供すること
を目的とするものである。Purpose The present invention provides an adhesive that imparts soft magnetic properties to itself, allows the soft magnetic properties to be freely selected, and has an arbitrary viscosity.For example, when used in a main pole excitation head, the above-mentioned problems can be avoided. The object of the present invention is to provide a soft magnetic adhesive that can improve the
構 成
本発明は高分子接着剤中Ｉ：微粒子状の軟磁性材料を分
散混入したものである。Structure The present invention is a polymer adhesive in which I: a soft magnetic material in the form of fine particles is dispersed and mixed.
本発明で用いられる高分子接着剤としては工Ｉキシ樹脂
系あるいはフェノール樹脂系のものが適当であるが、特
Ｃ；エポキン樹脂系接着剤が最適である。As the polymeric adhesive used in the present invention, those based on polyurethane resin or phenolic resin are suitable, but special C: Epoquine resin type adhesive is most suitable.
また、本発明で用いられる軟磁性材料としてはＦｅＮ１
． ＣｕＭｏ−ＦｅＮｉ、 ｒｅ −ＡＮ−８１，Ｍｎ
Ｚｎ ｙ ｘライ）、ＮｌＺｎフェライト、 ＣｏＮｂ
Ｚｒ等が好ましく適用できる。これら軟磁性材料は微粒
子状、通常は数十又〜１ｐｆｉ程度として接着剤中に均
−Ｃ分散混入される。そして、このような微粒子状の軟
磁性材料を接着剤中（；混入する量はその多少により軟
磁性特性が左右されるため、混入量を変えること（二よ
り任意の軟磁気特性が得られるものである。この点が本
発明における第一の特長をなすものである。さらＣ：、
本発明は軟磁性材料の混入（：より所望の軟磁気特性を
有する接着剤の粘度を混入比と用いる接着剤；より低粘
度から高粘度まで任意に調整が可能である。この点が本
発明１：おける第二の特長をなすものである。In addition, the soft magnetic material used in the present invention is FeN1
．． CuMo-FeNi, re-AN-81, Mn
Zn y x Li), NlZn ferrite, CoNb
Zr etc. can be preferably applied. These soft magnetic materials are mixed into the adhesive in the form of fine particles, usually several tens of particles to about 1 pfi, in a homogeneous C-dispersion. Then, the soft magnetic material in the form of fine particles should be mixed into the adhesive (the amount mixed in will affect the soft magnetic properties depending on the amount mixed in, so it is necessary to change the amount mixed in). This point constitutes the first feature of the present invention.Furthermore, C:,
In the present invention, the viscosity of an adhesive having more desired soft magnetic properties can be adjusted arbitrarily from a low viscosity to a high viscosity. This is the second feature of 1:.
本発明は上記のような２つの特長を有するものであり、
それらの特長を活かした種々の用途に適用できるもので
ある。The present invention has the above two features,
It can be applied to a variety of uses that take advantage of these features.
以下に、本発明ｌ：係る軟磁性接着剤を磁気ヘッド、特
に主磁極励磁型ヘッドの形成に適用する場合について説
明する。In the following, the case of applying the soft magnetic adhesive according to the present invention to the formation of a magnetic head, particularly a main pole excitation type head, will be described.
第１図は第２図１；示した従来の主磁極励磁型ヘッド砿
；おいて、主磁極である軟磁性膜１とコイル３が巻かれ
たフェライト４とを本発明の軟磁性接着剤５（二より接
着したものを示す。この第１図（二示す主磁極励磁型へ
ラドζ；おいてはヘッドの小屋化１：より主磁極長が短
かくなって主磁極長（二対する接着剤層の相対的厚さが
増大しても、接着剤層それ自体に軟磁気特性が付与され
ているため、接着剤層（；磁束が通り易くなり、もれ磁
束が減少し、フェライト４（：流入する磁束の量が増加
し、再生感度、記録感度の高い小型ヘッドを製作するこ
とができる。FIG. 1 shows a conventional main pole excitation type head shown in FIG. (Figure 1 shows the main magnetic pole excitation type herad ζ shown in Figure 2); Even if the relative thickness of the layers increases, the soft magnetic properties imparted to the adhesive layer itself make it easier for magnetic flux to pass through the adhesive layer (; magnetic flux leakage decreases; ferrite 4 (; The amount of magnetic flux flowing in increases, and a compact head with high reproducing and recording sensitivity can be manufactured.
第３図は本発明接着剤の有する第二の特長を利用し、注
型法によって複雑な型の軟磁性ブロックを作成する例を
示すものである。第３図（、）のよう礪；、まずフェラ
イト４にコイル３を巻線し、通常の非磁性接着剤２を注
型し、ユニツ）Ａを作成する。次（：、予め製作してお
いた軟磁性性膜ｌを本発明の軟磁性接着剤５によりユニ
ットＡのフェライト４感：接着し、主磁極部からの磁束
を通り易くする（第３図（ｂ））。その後さらに、本発
明の第二の特長である任意の粘度とすることができる利
点を生かし、本発明Ｃ；係る軟磁性接着剤を用いてリタ
ーンパス６を注型（；より形成する（第３図（Ｃ））。FIG. 3 shows an example of making a complicated type of soft magnetic block by a casting method by utilizing the second feature of the adhesive of the present invention. As shown in FIG. 3(,), first, a coil 3 is wound around a ferrite 4, and an ordinary non-magnetic adhesive 2 is cast to form a unit A. Next (:, the ferrite 4 of unit A is bonded to the soft magnetic film 1 prepared in advance using the soft magnetic adhesive 5 of the present invention to make it easier for the magnetic flux from the main magnetic pole to pass through (see Figure 3). b)) Thereafter, by taking advantage of the second feature of the present invention, which is that it can be made to have an arbitrary viscosity, the return path 6 was cast by using the soft magnetic adhesive of the present invention (C). (Figure 3 (C)).
このよう（：、リターンパス６を形成すること（；より
、ヘッドが閉磁路構造（：近い形状をなし、感度の向上
が期待できることＣ二なる。By forming the return path 6 in this way, the head has a shape similar to that of a closed magnetic circuit (:), and an improvement in sensitivity can be expected.
効 果
以上のように、本発明は高分子接着剤中Ｃ：微粒子状の
軟磁性材料を分散混入したものであり、その軟磁性材料
の混入量を変えることＣ：より任意の軟磁気特性を得る
ことができ、しかも混入量と用いる接着剤Ｃ：より任意
の粘度を得ることができるため注型性Ｃ：優れ、これら
特長を要求される広範囲の用途Ｃ２ＩＩ用でき、特（−
主磁極励磁型ヘッドの形成シー極めて好ましい軟磁性接
着剤が得られる。Effects As described above, the present invention is a polymer adhesive in which C: a soft magnetic material in the form of fine particles is dispersed and mixed, and by changing the amount of the soft magnetic material mixed in, C: it is possible to obtain more arbitrary soft magnetic properties. Furthermore, it is possible to obtain a desired viscosity based on the mixing amount and adhesive C: excellent castability C: it can be used in a wide range of applications that require these features, and especially (-
A very preferable soft magnetic adhesive is obtained for the formation of the main pole excitation type head.
第１図は本発明に係る軟磁性接着剤を用いて形成した主
磁極励磁型ヘッドの概略説明図である。
第２図は従来の非磁性接着剤を用いて形成した主磁極励
磁型ヘッドの概略説明図である。
第３図は本発明（；係る軟磁性接着剤を用いてリターン
パスな有する主磁極励磁型ヘッドを作成する場合の工程
を示す概略説明図である。
ｌ・・・軟磁性膜 ２・・・非磁性接着剤３・・
・コイル ４・・・フェライト５・・・軟磁性
接着剤 ６・・・リターンノ臂ス第１図
第３
（ｄ）
（ｂｌ
第２図
図
（Ｃ）FIG. 1 is a schematic explanatory diagram of a main pole excitation type head formed using a soft magnetic adhesive according to the present invention. FIG. 2 is a schematic explanatory diagram of a main pole excitation type head formed using a conventional nonmagnetic adhesive. FIG. 3 is a schematic explanatory diagram showing the process of manufacturing a main pole excitation type head having a return path using the soft magnetic adhesive according to the present invention. l... Soft magnetic film 2... Non-magnetic adhesive 3...
・Coil 4... Ferrite 5... Soft magnetic adhesive 6... Return nozzle Figure 1 Figure 3 (d) (bl Figure 2 (C)
Claims (1)
性材料を混入したことを特徴とする軟磁性接着剤。1. A soft magnetic adhesive characterized by mixing a finely powdered soft magnetic material into the adhesive among polymer adhesives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22047586A JPS6375080A (en) | 1986-09-17 | 1986-09-17 | Soft magnetic adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22047586A JPS6375080A (en) | 1986-09-17 | 1986-09-17 | Soft magnetic adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6375080A true JPS6375080A (en) | 1988-04-05 |
Family
ID=16751680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22047586A Pending JPS6375080A (en) | 1986-09-17 | 1986-09-17 | Soft magnetic adhesive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6375080A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03252108A (en) * | 1990-02-28 | 1991-11-11 | Tabuchi Denki Kk | Magnetic fluid adhesive, manufacture and usage thereof and induction electromagnetic equipment |
| WO1994014080A2 (en) * | 1992-12-17 | 1994-06-23 | Commissariat A L'energie Atomique | Process for determination of the intrinsic magnetic permeability of oblong ferromagnetic elements and electromagnetic properties of composite materials composed of such elements |
-
1986
- 1986-09-17 JP JP22047586A patent/JPS6375080A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03252108A (en) * | 1990-02-28 | 1991-11-11 | Tabuchi Denki Kk | Magnetic fluid adhesive, manufacture and usage thereof and induction electromagnetic equipment |
| WO1994014080A2 (en) * | 1992-12-17 | 1994-06-23 | Commissariat A L'energie Atomique | Process for determination of the intrinsic magnetic permeability of oblong ferromagnetic elements and electromagnetic properties of composite materials composed of such elements |
| WO1994014080A3 (en) * | 1992-12-17 | 1994-10-13 | Commissariat Energie Atomique | Process for determination of the intrinsic magnetic permeability of oblong ferromagnetic elements and electromagnetic properties of composite materials composed of such elements |
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