JPH01276419A - Production of composite type magnetic head - Google Patents
Production of composite type magnetic headInfo
- Publication number
- JPH01276419A JPH01276419A JP10480888A JP10480888A JPH01276419A JP H01276419 A JPH01276419 A JP H01276419A JP 10480888 A JP10480888 A JP 10480888A JP 10480888 A JP10480888 A JP 10480888A JP H01276419 A JPH01276419 A JP H01276419A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- slider
- magnetic head
- core
- magnetic core
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000011521 glass Substances 0.000 claims abstract description 36
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 229910052681 coesite Inorganic materials 0.000 abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 238000003466 welding Methods 0.000 abstract 2
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、磁気記録再生装置に用いられるコンポジット
型磁気ヘッドの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a composite magnetic head used in a magnetic recording/reproducing device.
磁気記録再生装置における高容量化に伴い、トラック密
度を上げる目的で、コンポジット型磁気ヘッドが使用さ
れている。従来のコンポジット型磁気ヘッドでは、磁気
コア半体対を一体固着させる第１の融着ガラスとして作
業温度が６００〜７００℃のらのが使われ、磁気コアと
スライダーを一体固着させる第２の融着ガラスとして、
第１の融着ガラスの軟化温度以下の４００〜５００°Ｃ
の作業温度のガラスが使用されていた。2. Description of the Related Art As the capacity of magnetic recording and reproducing devices increases, composite magnetic heads are being used to increase track density. In conventional composite magnetic heads, glass with an operating temperature of 600 to 700°C is used as the first fused glass to bond the magnetic core halves together, and the second fused glass to bond the magnetic core and slider together. As a coated glass,
400 to 500°C below the softening temperature of the first fused glass
A working temperature glass was used.
しかし前述の従来技術では、第２の融着ガラスの作業温
度が４００〜５００℃と低いため、酸化鉛を主成分とす
るガラスが使用されており、磁気ヘッドの長期安定性に
欠けていた。また、第２の融着ガラスの硬度がスライダ
ー材の硬度に比べて著しく小さいため、磁気ヘッドの平
坦度、表面粗さに限界があり、磁気ヘッドと記録媒体が
起動時と停止時に接触しているという、いわゆるＣ８５
（コンタクト・スタート・ストップ）時に、ヘッドクラ
ッシュを起こしたり、記録媒体を潟付けるという課題を
有する。そこで本発明は、このような課題を解決するも
ので、その目的とするところは、信頼性や耐久性の高い
コンポジット型磁気ヘッドを提供するところにある。However, in the above-mentioned prior art, since the working temperature of the second fusion glass is as low as 400 to 500 DEG C., glass containing lead oxide as a main component is used, and the magnetic head lacks long-term stability. In addition, because the hardness of the second fused glass is significantly lower than that of the slider material, there are limits to the flatness and surface roughness of the magnetic head, and the magnetic head and recording medium may come into contact with each other when starting and stopping. The so-called C85
(contact start/stop), there are problems in that the head crashes and the recording medium becomes sluggish. SUMMARY OF THE INVENTION The present invention aims to solve these problems, and its purpose is to provide a composite magnetic head that is highly reliable and durable.
本発明のコンポジット型磁気ヘッドの製造方法は、磁気
コアと酸化物よりなるスライダーを固着一体とする第２
の融着ガラスとして、結晶化ガラスを用いることを特徴
とする。The method for manufacturing a composite magnetic head of the present invention provides a second magnetic head in which a magnetic core and a slider made of an oxide are fixedly integrated.
The method is characterized in that crystallized glass is used as the fused glass.
第１図は、本発明の実施例におけるコンポジット型磁気
ヘッドの斜視図である。第１図に示すように、フェライ
トコア３ａ上に所定のギャップ４を真空薄膜形成法によ
り形成し、フェライトコア３ｂと第１の融着ガラス５に
より固着一体とする。FIG. 1 is a perspective view of a composite magnetic head in an embodiment of the present invention. As shown in FIG. 1, a predetermined gap 4 is formed on the ferrite core 3a by a vacuum thin film forming method, and the ferrite core 3b and the first fused glass 5 are bonded together.
第１の融着ガラスとして、熱膨張係数１１０×１０−’
／”Ｃ５作業温度６５０℃、軟化温度５５０℃のＰｂＯ
Ａｊ２０ｓ Ｓ ｉ０２系のガラスを使用した。As the first fused glass, the coefficient of thermal expansion is 110 x 10-'
/”C5 PbO with working temperature 650℃, softening temperature 550℃
Aj20s Si02 type glass was used.
このようにして得られた磁気コアを、チタン酸カルシウ
ム等からなるスライダー１に設けられたコア挿入溝２に
挿入し、結晶化ガラスによって、スライダーと磁気コア
を一体化させる。第２図に一体化した本発明のコンボジ
ッシ型磁気ヘッドの斜視図を示す。The magnetic core thus obtained is inserted into a core insertion groove 2 provided in a slider 1 made of calcium titanate or the like, and the slider and magnetic core are integrated with crystallized glass. FIG. 2 shows a perspective view of an integrated composite magnetic head of the present invention.
この結晶化ガラス７として、Ｌｉ２０−Ａｊ２０３−Ｐ
２０．−３ ｉ０２系のガラステ軟化温度が１００°Ｃ
のものを使用し、１５０℃でスライダー１と磁気コア６
を一体とした後さらに、１５０℃に加熱することにより
ガラスを結晶化させる。As this crystallized glass 7, Li20-Aj203-P
20. -3 Glass steel softening temperature of i02 series is 100°C
slider 1 and magnetic core 6 at 150℃.
After integrating, the glass is further crystallized by heating to 150°C.
このようにして得られた結晶化ガラスは、軟化温度が９
００°Ｃとなり、硬度もＨｖで８００にも達する。従来
の第２の融着ガラスと比較して、結晶質であるため、機
械強度が大きく、耐摩耗性に優れ、化学的耐久性に優れ
ているという利点を有する。The crystallized glass thus obtained has a softening temperature of 9
00°C, and the hardness reaches 800 Hv. Compared to the conventional second fused glass, since it is crystalline, it has the advantages of high mechanical strength, excellent abrasion resistance, and excellent chemical durability.
従って、加工時にはスライダーと結晶化ガラスという複
合材であるにもかかわらず、良好な平面が得られ、表面
粗さも小さくすることか可能となり、ｃｓｓｔｉ久性の
向上につながる。Therefore, even though it is a composite material of the slider and crystallized glass during processing, a good flat surface can be obtained and the surface roughness can be reduced, leading to improved cssti durability.
また、化学的耐久性にすぐれているため、磁気ヘッドの
長期信頼性につながるものである。Furthermore, since it has excellent chemical durability, it contributes to the long-term reliability of magnetic heads.
なお、高保磁力の記録螺体に対応できるＭＩＧ（メタル
・イン・ギャップ）構造のコンポジット型磁気ヘッドに
も、本発明の製造方法が適用できることは言うまでもな
い。It goes without saying that the manufacturing method of the present invention can also be applied to a composite magnetic head with an MIG (metal-in-gap) structure that is compatible with a recording screw having a high coercive force.
以上述べたように本発明によれば、磁気コアとスライダ
ーを固着一体止するのに結晶化ガラスを使うことにより
、コンポジット型磁気ヘッドのＣｓ５ｉｉｔ久性、耐候
性を大幅に向上させることが可能となるため、長期耐久
性に優れ、信頼性の高い高性能磁気ヘッドが得られると
いう効果を有する。As described above, according to the present invention, by using crystallized glass to firmly and integrally fix the magnetic core and slider, it is possible to significantly improve the Cs5iit durability and weather resistance of the composite magnetic head. Therefore, it is possible to obtain a high-performance magnetic head with excellent long-term durability and high reliability.
第１図は、本発明の磁気コアとスライダーの実施例を示
す斜視図。
第２図は、本発明のコンポジット型磁気ヘッドを示す斜
視図。
１・・・・・・スライダー
２・・・・・・コア挿入溝
３ａ、３ｂ・・フェライトコア
４・・・・・・ギャップ
５・・・・・・第１の融着ガラス
６・・・・・・磁気コア
７・・・・・・結晶化ガラス
以上
出願人 セイコーエプソン株式会社FIG. 1 is a perspective view showing an embodiment of the magnetic core and slider of the present invention. FIG. 2 is a perspective view showing a composite magnetic head of the present invention. 1...Slider 2...Core insertion grooves 3a, 3b...Ferrite core 4...Gap 5...First fused glass 6... ...Magnetic core 7...Crystalline glass and above Applicant Seiko Epson Corporation
Claims (1)
１の融着ガラスにより磁気ギャップを形成し一体となる
磁気コアを、酸化物よりなるスライダーのコア挿入溝に
第２の融着ガラスにより埋設固着され一体化してなるコ
ンポジット型磁気ヘッドにおいて、前記第２のガラスと
して、結晶化ガラスを用いることを特徴とするコンポジ
ット型磁気ヘッドの製造方法。A pair of magnetic core halves made of ferromagnetic oxide are butted together to form a magnetic gap with a first fused glass, and the integrated magnetic core is inserted into a core insertion groove of a slider made of oxide with a second fused glass. 1. A method of manufacturing a composite magnetic head, comprising using crystallized glass as the second glass in the composite magnetic head which is embedded and fixed and integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10480888A JPH01276419A (en) | 1988-04-27 | 1988-04-27 | Production of composite type magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10480888A JPH01276419A (en) | 1988-04-27 | 1988-04-27 | Production of composite type magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01276419A true JPH01276419A (en) | 1989-11-07 |
Family
ID=14390719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10480888A Pending JPH01276419A (en) | 1988-04-27 | 1988-04-27 | Production of composite type magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01276419A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03273520A (en) * | 1990-03-23 | 1991-12-04 | Ngk Insulators Ltd | Core slider for stationary magnetic disk device and production thereof |
-
1988
- 1988-04-27 JP JP10480888A patent/JPH01276419A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03273520A (en) * | 1990-03-23 | 1991-12-04 | Ngk Insulators Ltd | Core slider for stationary magnetic disk device and production thereof |
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