JPH0230084B2 - - Google Patents
Info
- Publication number
- JPH0230084B2 JPH0230084B2 JP56060254A JP6025481A JPH0230084B2 JP H0230084 B2 JPH0230084 B2 JP H0230084B2 JP 56060254 A JP56060254 A JP 56060254A JP 6025481 A JP6025481 A JP 6025481A JP H0230084 B2 JPH0230084 B2 JP H0230084B2
- Authority
- JP
- Japan
- Prior art keywords
- head core
- magnetic head
- glass
- magnetic alloy
- amorphous
- 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
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 23
- 239000011521 glass Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 3
- 239000006060 molten glass Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000009824 pressure lamination Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
- G11B5/1475—Assembling or shaping of elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
【発明の詳細な説明】
本発明は、非晶質磁性合金を用いた磁気ヘツド
コアの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a magnetic head core using an amorphous magnetic alloy.
第１図は従来の積層構造の磁気ヘツドコアの一
例を示す。この場合、Ｃ型等の形状に打抜かれた
パーマロイ板１は、第２図の如くエポキシ系樹脂
２を介して積層するのが一般的であつた。 FIG. 1 shows an example of a conventional magnetic head core having a laminated structure. In this case, permalloy plates 1 punched into a C-shape or the like were generally laminated with an epoxy resin 2 interposed therebetween as shown in FIG.
ところで、今までの磁性材では透磁率に限界が
あり、このため最近、磁気ヘツドコアの磁性材と
して非晶質磁性合金（アモルフアス）を使用する
ことが考慮されている。しかしながら、非晶質磁
性合金を従来のごとく樹脂を用いて接着し積層し
たのでは非晶質磁性合金と樹脂との性質に差異が
大きいため、種々の不都合を生じる。すなわち、
非晶質磁性合金は非常に弾性に富んだ材質である
が、樹脂で積層するとその特長が損われ、衝撃に
対して弱くなり、ひび割れ等の破損を生じる可能
性が大きくなつてしまう。 By the way, conventional magnetic materials have limited magnetic permeability, and for this reason, recently, consideration has been given to using an amorphous magnetic alloy (amorphous) as the magnetic material for the magnetic head core. However, when amorphous magnetic alloys are bonded and laminated using resin as in the past, various problems arise due to the large difference in properties between the amorphous magnetic alloy and the resin. That is,
Amorphous magnetic alloys are highly elastic materials, but if they are laminated with resin, their properties are lost, they become weak against impact, and the possibility of cracking or other damage increases.
本発明は、上記の点に鑑み、非晶質磁性合金に
似かよつた機械的性質を有するガラスを用いて非
晶質磁性合金薄板を接着し積層することにより、
衝撃に強く、耐摩耗性や磁気特性の良好な磁気ヘ
ツドコアの製造方法を提供しようとするものであ
る。 In view of the above points, the present invention has been developed by bonding and laminating thin plates of amorphous magnetic alloy using glass having mechanical properties similar to those of amorphous magnetic alloy.
The object of the present invention is to provide a method for manufacturing a magnetic head core that is resistant to impact and has good wear resistance and magnetic properties.
以下、本発明に係る磁気ヘツドコアの製造方法
の実施例を図面に従つて説明する。 Embodiments of the method for manufacturing a magnetic head core according to the present invention will be described below with reference to the drawings.
第３図に示すように、本発明によつて得られる
磁気ヘツドコアは非晶質磁性合金薄板１０をガラ
ス１１を介して相互に接着し所要の厚みに積層し
たものである。この場合、非晶質磁性合金薄板１
０として予めＣ型やＩ型に打抜いたものを使用し
てもよく、あるいはまた積層後に所要の形状にカ
ツターで切断するようにしてもよい。 As shown in FIG. 3, the magnetic head core obtained according to the present invention is made by laminating amorphous magnetic alloy thin plates 10 to a required thickness by adhering them to each other with glass 11 interposed therebetween. In this case, the amorphous magnetic alloy thin plate 1
0 may be used that is previously punched into a C-shape or I-shape, or it may be cut into a desired shape with a cutter after lamination.
上記第３図に示した磁気ヘツドコアによれば、
非晶質磁性合金薄板１０をこれに似かよつた機械
的性質を有するガラス１１で接着し積層している
ので、非晶質磁性合金薄板１０の特徴を損うこと
がない。従つて、得られる磁気ヘツドコアは磁気
的には高い透磁率を有し、かつ機械的には充分な
弾性を保持しており、衝撃に対して強く、はが
れ、ひび割れ等の破損を生じない。また、摩耗が
少なく、テープ走行面に微小なクラツクが生じる
ことがないためノイズの発生を防止できる。さら
に、低融点ガラスは通常300℃位で軟化し如め、
400℃位で液状になるので接着作業も容易にでき
る。 According to the magnetic head core shown in FIG. 3 above,
Since the amorphous magnetic alloy thin plate 10 is bonded and laminated with glass 11 having similar mechanical properties, the characteristics of the amorphous magnetic alloy thin plate 10 are not impaired. Therefore, the obtained magnetic head core has high magnetic permeability and mechanically has sufficient elasticity, is strong against impact, and does not suffer from damage such as peeling or cracking. Further, since there is little wear and no minute cracks occur on the tape running surface, noise generation can be prevented. Furthermore, low melting point glass usually softens at around 300℃,
It becomes liquid at around 400℃, making it easy to bond.
第４図は第３図に示した磁気ヘツドコアの製造
方法を示す。この図において、帯状に連続した非
晶質磁性合金帯状体２０を複数重ね合わせた状態
に左右の押し型２１，２２にて挾持し、各非晶質
磁性合金帯状体２０の前記押し型２１，２２で挟
持されていない部分の間にガラス棒２３を挿入
し、これらを加熱炉内に入れてガラス棒２３を溶
融させる。溶融したガラスは重力で非晶質磁性合
金帯状体間の微小な間隙に浸入する。冷却により
ガラスが固化し各非晶質磁性合金帯状体が積層状
態となつたら、一点鎖線Ｘの如くカツターで切断
し、その後、得られた磁気ヘツドコアをアニール
処理して磁気特性の改善を図る。ここで、押し型
２１，２２で挟持されている帯状体部分の間に直
接ガラス棒を挿入しない理由は、挟持される部分
にガラス棒を介在させると各帯状体２０を積層す
る作業が難しく、ガラス棒が脱落し易いし、また
ガラス棒の太さに起因して挟持されている帯状体
間の間〓が過大となつてしまうため、ガラス棒溶
融時に押し型２１，２２を加圧して間〓を狭める
必要性が出て来るからである。加圧積層である
と、積層厚みの制御が難しく、帯状体間のガラス
量も多くなり過ぎる。 FIG. 4 shows a method of manufacturing the magnetic head core shown in FIG. 3. In this figure, a plurality of continuous amorphous magnetic alloy strips 20 are stacked one on top of the other and are sandwiched between left and right pressing dies 21, 22, and each amorphous magnetic alloy strip 20 is sandwiched between the dies 21, 22, A glass rod 23 is inserted between the portions that are not sandwiched between the two portions 22, and these are placed in a heating furnace to melt the glass rod 23. The molten glass penetrates into the minute gaps between the amorphous magnetic alloy strips by gravity. When the glass is solidified by cooling and the amorphous magnetic alloy strips are in a laminated state, they are cut with a cutter as shown by the dashed line X, and then the obtained magnetic head core is annealed to improve its magnetic properties. Here, the reason why the glass rod is not directly inserted between the strip parts sandwiched by the pressing molds 21 and 22 is that if the glass rod is interposed between the sandwiched parts, it will be difficult to stack the strips 20. The glass rod is likely to fall off, and the gap between the sandwiched strips becomes too large due to the thickness of the glass rod. This is because there will be a need to narrow down 〓. Pressure lamination makes it difficult to control the laminated thickness, and the amount of glass between the strips becomes too large.
上記第４図の製造方法によれば、樹脂等をいち
いち塗布する必要がなく、各非晶質磁性合金帯状
体の微小な間隙にガラスを重力及び表面張力で必
要最少限の量だけ薄く充填できるから、接着作業
性が良好でしかも得られた磁気ヘツドコアにおけ
る磁性合金の占積率を大きくすることができる。
従つて、小形で磁気特性の良好な磁気ヘツドを容
易に構成できる。また、帯状に連続した非晶質磁
性合金帯状体を用いることにより、連続加工がで
き、量産化にも適する。 According to the manufacturing method shown in Figure 4 above, there is no need to apply resin etc. one by one, and the minimum necessary amount of glass can be thinly filled into the minute gaps of each amorphous magnetic alloy strip by gravity and surface tension. Therefore, the adhesive workability is good, and the space factor of the magnetic alloy in the obtained magnetic head core can be increased.
Therefore, a small magnetic head with good magnetic properties can be easily constructed. Furthermore, by using a continuous strip-like amorphous magnetic alloy strip, continuous processing is possible, making it suitable for mass production.
以上説明したように、本発明によれば、非晶質
磁性合金に似かよつた機械的性質を有するガラス
を用いて非晶質磁性合金薄板を接着し積層するこ
とにより、衝撃に強く、耐摩耗性や磁気特性の良
好な磁気ヘツドコアを容易に得ることができ、そ
の実用上の効果は極めて大きい。 As explained above, according to the present invention, amorphous magnetic alloy thin plates are bonded and laminated using glass having mechanical properties similar to those of amorphous magnetic alloy, thereby providing strong impact resistance and wear resistance. A magnetic head core with good properties and magnetic properties can be easily obtained, and its practical effects are extremely large.
第１図は従来の積層構造の磁気ヘツドコアの一
例を示す斜視図、第２図は同断面図、第３図は本
発明の実施例であつて磁気ヘツドコアを示す断面
図、第４図は磁気ヘツドコアの製造方法を説明す
るための概略断面図である。
１０……非晶質磁性合金薄板、１１……ガラ
ス、２０……非晶質磁性合金帯状体、２１，２２
……押し型、２３……ガラス棒。
FIG. 1 is a perspective view showing an example of a conventional magnetic head core with a laminated structure, FIG. 2 is a sectional view thereof, FIG. 3 is a sectional view showing a magnetic head core according to an embodiment of the present invention, and FIG. FIG. 3 is a schematic cross-sectional view for explaining a method of manufacturing a head core. 10...Amorphous magnetic alloy thin plate, 11...Glass, 20...Amorphous magnetic alloy strip, 21, 22
...Press mold, 23...Glass rod.
Claims (1)
状態に押し型で押さえ、当該押し型で押えられた
部分以外の各帯状体間にガラス棒を挿入した後加
熱して溶融したガラスを重力及び表面張力にて各
帯状体間に浸入させたことを特徴とする磁気ヘツ
ドコアの製造方法。1 A plurality of amorphous magnetic alloy strips are stacked one on top of the other and pressed with a press mold, a glass rod is inserted between each strip except for the part pressed by the press mold, and the heated and molten glass is heated and molten by gravity. and a method for producing a magnetic head core, characterized in that the magnetic head core is infiltrated between each strip by surface tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6025481A JPS57176525A (en) | 1981-04-21 | 1981-04-21 | Magnetic head core and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6025481A JPS57176525A (en) | 1981-04-21 | 1981-04-21 | Magnetic head core and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57176525A JPS57176525A (en) | 1982-10-29 |
| JPH0230084B2 true JPH0230084B2 (en) | 1990-07-04 |
Family
ID=13136843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6025481A Granted JPS57176525A (en) | 1981-04-21 | 1981-04-21 | Magnetic head core and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57176525A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07106257B2 (en) * | 1991-09-04 | 1995-11-15 | 株式会社三共 | Probability setting device for gaming machines |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54160221A (en) * | 1978-06-08 | 1979-12-18 | Matsushita Electric Ind Co Ltd | Magnetic head and production thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5258613U (en) * | 1975-10-24 | 1977-04-28 |
-
1981
- 1981-04-21 JP JP6025481A patent/JPS57176525A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54160221A (en) * | 1978-06-08 | 1979-12-18 | Matsushita Electric Ind Co Ltd | Magnetic head and production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57176525A (en) | 1982-10-29 |
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