JPH01178111A - Manufacture of composite magnetic head - Google Patents
Manufacture of composite magnetic headInfo
- Publication number
- JPH01178111A JPH01178111A JP176588A JP176588A JPH01178111A JP H01178111 A JPH01178111 A JP H01178111A JP 176588 A JP176588 A JP 176588A JP 176588 A JP176588 A JP 176588A JP H01178111 A JPH01178111 A JP H01178111A
- Authority
- JP
- Japan
- Prior art keywords
- core
- head
- slider
- head core
- glass plate
- 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 description 21
- 239000002131 composite material Substances 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000011521 glass Substances 0.000 claims abstract description 36
- 238000003860 storage Methods 0.000 claims abstract description 14
- 239000006060 molten glass Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 8
- 125000006850 spacer group Chemical group 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 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】
（イ）産業上の利用分野
本発明はフェライト等の強磁性酸化物材料と非磁性体と
で構成さ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 (a) Field of Industrial Application The present invention relates to a method of manufacturing a composite magnetic head composed of a ferromagnetic oxide material such as ferrite and a nonmagnetic material.
（ロ）従来の技術
近年、ｆ！子計算機等の外部記憶装置のハードディスク
の記録再生に用いられる浮動型の磁気ヘッドとしては、
第１４図に示すように非磁性セラミックスよりなるスラ
イダ先（２）の溝（３）にフェライトよりなるヘッドコ
ア（３）が溶融ガラス（４ａ）により゛固定されている
コンポジット型磁気ヘッドが提案されている。(b) Conventional technology In recent years, f! As a floating magnetic head used for recording and reproducing the hard disk of external storage devices such as child computers,
As shown in Fig. 14, a composite magnetic head has been proposed in which a head core (3) made of ferrite is fixed in a groove (3) of a slider tip (2) made of non-magnetic ceramics with molten glass (4a). There is.
この従来のコンポジット型磁気ヘッドは、第１２図に示
すようにヘッドコア（１）とスライダ（２）とを用意し
、該スライダ（２）の溝（３）に前記ヘッドコア（１）
を嵌め込み、その後前記ヘッドコア（１）−ヒに第１３
図に示すようにガラス棒（４）を載置し、該ガラス棒（
４）を加熱溶融して溶融ガラス（４ａ）を溝（３）に充
填し、前記ヘッドコアは）を前記スライダ（２）に固定
し、そして最後に前記スライダ（２）を破線Ｃ−Ｃまで
切削することにより製造される。尚、このヘッドコア（
１）のスライダ（２）への固定方法については特開昭６
２−１０３８０８号公報（Ｇ１１Ｂ５／１３３）に示さ
れている。This conventional composite magnetic head has a head core (1) and a slider (2) as shown in FIG.
and then insert the thirteenth head into the head core (1)-H.
Place the glass rod (4) as shown in the figure, and place the glass rod (
4) is heated and melted to fill the groove (3) with molten glass (4a), the head core is fixed to the slider (2), and finally the slider (2) is cut to the broken line C-C. Manufactured by Furthermore, this head core (
Regarding the method of fixing 1) to the slider (2), see Japanese Patent Application Laid-Open No.
It is shown in Publication No. 2-103808 (G11B5/133).
しかし乍ら、上述のコンポジット型磁気ヘッドの製造方
法では、ヘッドコア（υのディスク対向部（媒体対向部
）（５）がその両側のトラック幅規制溝（６１（６１に
よって１０〜３０μｍ程反と小さく形成されているので
、前記ヘッドコア（１）をスライダ＋２１の溝（３）に
挿入する際、前記ディスク対向部（５）の先端にカケ等
が生じ、歩留りが悪い。また、ガラス棒（４）はその径
がコンマ数篇と非常に小さく、前記ガラス棒（４）の製
造及び使用は非常に困難であり、作業性が悪いっ
ｅｌ 発明が解決しようとする課題
本発明は上記従来例の欠点に鑑みなされたものであり、
ヘッドコアをスライダのコア収納部に取り付ける際、前
記ヘッドコアの媒体対向部にカケ等が生じず、しかも作
業性に優れたコンポジット型磁気ヘッドの製造方法を提
供することを目的とするものである。However, in the method for manufacturing the composite magnetic head described above, the disk facing part (medium facing part) (5) of the head core (υ) is as small as 10 to 30 μm due to the track width regulating grooves (61 (61) on both sides thereof). Therefore, when the head core (1) is inserted into the groove (3) of the slider +21, chips etc. occur at the tip of the disk facing portion (5), resulting in poor yield. The diameter of the glass rod (4) is very small, only a few commas, making it very difficult to manufacture and use the glass rod (4), resulting in poor workability. This was done in view of the
It is an object of the present invention to provide a method for manufacturing a composite magnetic head which does not cause chipping or the like in the medium facing part of the head core when the head core is attached to a core storage part of a slider and has excellent workability.
に）課題を解決するための手段
本発明のコンポジット型磁気ヘッドの製造方法は、強磁
性酸化物材料よりなるコアブロックの上面にトラック幅
規制溝を加工して媒体対向部を形成する第１の工程と、
前記第１の工程終了後、前記媒体対向部の上面にガラス
板を載置し、ガラス板を加熱溶融することにより前記ト
ラック幅規制溝に前記ガラス板の一部を充填する第２の
工程と、前記第２の工程終了後、前記コアブロックを切
断してヘッドコアを形成する第３の工程と、前記第３の
工程終了後、前記ヘッドコアをスライダのコア収納部に
嵌め込み、前記ヘッドコアの上面に接合されでいる前記
ガラス板を加熱溶融することにより、該溶融ガラスを前
記ヘッドコアと前記スライダとの隙間に浸透させ、前記
ヘッドコアを前記コア収納部に固定する第４の工程とか
ら成ることを特徴とするう
（ホ）作用
上記方法に依れば、ヘッドコアをスライダのコア収納部
に収納する際、前記ヘッドコアの媒体対向部はガラスに
より覆われているので、前記媒体対向部の破損が防止さ
れ、しかも、この保護用のガラスを溶融するだけで、前
記ヘッドコアラ前記コア収納部に固定することが出来る
、′（へ）実施例
以下、図面を参照しつつ本発明のコンポジット型磁気ヘ
ッドの製造方法について詳細に説明する。B.) Means for Solving the Problems The method for manufacturing a composite magnetic head of the present invention includes a first step in which a medium facing portion is formed by forming track width regulating grooves on the upper surface of a core block made of a ferromagnetic oxide material. process and
After the first step, a second step of placing a glass plate on the upper surface of the medium facing part and heating and melting the glass plate to fill the track width regulating groove with a part of the glass plate; , after the second step, a third step of cutting the core block to form a head core; and after the third step, fitting the head core into a core storage portion of a slider, and inserting the head core into the upper surface of the head core. A fourth step of heating and melting the bonded glass plates to allow the molten glass to penetrate into the gap between the head core and the slider and fixing the head core to the core storage portion. According to the above method, when the head core is stored in the core storage portion of the slider, the medium facing portion of the head core is covered with glass, so damage to the medium facing portion is prevented. Moreover, the head corer can be fixed to the core storage portion simply by melting this protective glass. Embodiments Hereinafter, with reference to the drawings, manufacturing of the composite magnetic head of the present invention will be described. The method will be explained in detail.
先ず、第２図に示すようにＭｎ−Ｚｎ系単結晶フェライ
トよりなる一対の基板（１１）ａ２を用意し、該基板（
Ｉｌｌ （１２のギャップ形成面となる上面（１１３）
（１２ａ）及び下面（１１ｂ）（１２ｂ）を性面研磨し
、一方の基板＠の上面（１２ａ）全域に巻線溝■を複数
本形成する。First, as shown in FIG. 2, a pair of substrates (11) a2 made of Mn-Zn single crystal ferrite are prepared, and the substrates (
Ill (Top surface (113) that becomes the gap forming surface of 12
(12a) and the lower surfaces (11b) and (12b) are polished, and a plurality of winding grooves (2) are formed over the entire upper surface (12a) of one substrate.
次に、前記基板αＤ■のうち両方、若しくは一方の基板
の上面に５ｉ０２等よりなるギャップスペーサσ勾を蒸
着等により形成し、前記基板α１）ａ２を第３図に示す
ようにギャップスペーサα勾を介して衝き合わせる。そ
して、第４図に示すように前記巻線溝αＪに軟化点が５
８０℃のガラス棒（至）を挿入し、前記基板α１１ａ２
Ｊをこの状態で両側から加圧しながら７８０℃まで加熱
することにより前記ガラス棒（至）を溶融して前記一対
の基板（１１１Ｑ２をガラス接合する。Next, a gap spacer σ made of 5i02 or the like is formed on the upper surface of one or both of the substrates αD■ by vapor deposition or the like, and the substrate α1)a2 is formed with the gap spacer α collide through. As shown in FIG. 4, the winding groove αJ has a softening point of 5.
Insert a glass rod (to) at 80°C and heat the substrate α11a2.
In this state, J is heated to 780° C. while applying pressure from both sides to melt the glass rod (to) and glass bond the pair of substrates (111Q2).
その後、ガラス接合された一対の基板圓■を第３図に示
す一点鎖線Ａ−Ａに沿って切断することにより第５図に
示すコアブロックαＱを形成する。０９は前記ガラス棒
（５）が溶融してなるガラス材で、前記ギャップスペー
サα勾により形成される磁気ギャップを補強する。Thereafter, a core block αQ shown in FIG. 5 is formed by cutting the pair of glass-bonded substrate circles along the dashed line A--A shown in FIG. 3. A glass material 09 is made by melting the glass rod (5) and reinforces the magnetic gap formed by the gap spacer α.
次に第６図に示すように前記コアブロックαｅの上面に
トラック幅規制溝Ｑ８）（１８）・・・を加工すること
によりトラック幅に等しい厚みを有するディスク対回部
（媒体対向部）α９１（１１・・・を形成する。Next, as shown in FIG. 6, track width regulating grooves Q8) (18) are formed on the upper surface of the core block αe to create a disk facing portion (medium facing portion) α91 having a thickness equal to the track width. (11... is formed.
次に、第７図に示すように前記コアブロック叫のディス
ク対向部α優α９・・・上に軟化点が５２０℃であるガ
ラス板■を載置する。Next, as shown in FIG. 7, a glass plate (3) having a softening point of 520 DEG C. is placed on the disk facing portions α, α9, etc. of the core block.
次に、前記ガラス板■を５２０℃で加熱処理することに
より第８図に示すように前記トラック幅規制溝（１印α
訓・・に溶融ガラス（ｚｏａＸｚｏａ）・・・を充填し
、前記コアブロック（至）と前記ガラス板■とを一体化
する。Next, the glass plate (2) is heat-treated at 520°C to form the track width regulating groove (1 mark α) as shown in FIG.
. . . is filled with molten glass (zoa
次に、前記コアブロック叫を第８図に示す破線Ｂ−Ｂに
沿って切断することにより第９図に示すヘッドコア（２
）を複式個形成する。Next, by cutting the core block along the broken line B-B shown in FIG. 8, the head core (2) shown in FIG.
) is formed in multiple form.
次に、非磁性セラミックスよりなるスライダ（支）を用
意し、該スライダ（支）の溝（コア収納部）＠に第１０
図に示すようにヘッドコア（社）を挿入する。）この時
、前記ヘッドコア（８）の頭部に接合されているガラス
板■のうち前記スライダ■のディスク対向面（至）より
突出している部分の体積は前記ヘッドコア（社）と前記
スライダ（支）との上側の隙間（第１１図の斜線部分）
の体積よりも大きくなるように前記ガラス板■の体積は
設定されている。Next, a slider (support) made of non-magnetic ceramics is prepared, and a 10th
Insert the head core (Inc.) as shown in the figure. ) At this time, the volume of the portion of the glass plate (2) that is joined to the head of the head core (8) that protrudes from the disk facing surface (to) of the slider (2) is the same as that of the head core (8) and the slider (support). ) (shaded area in Figure 11)
The volume of the glass plate (2) is set to be larger than the volume of the glass plate (2).
次に、前記ヘッドコア圓が挿入されたスライダ■に５２
０℃の加熱処理を施すことにより前記ガラス板■を溶融
し、溶融ガラス（２０ｂ）を前記ヘッドコア（社）とス
ライダ■との上側の隙間に充填する。Next, the slider (52) into which the head core circle was inserted is
The glass plate (2) is melted by heat treatment at 0° C., and the molten glass (20b) is filled into the gap above the head core (manufactured by Co., Ltd.) and the slider (2).
尚、この時、前記ガラス板例の体積は上述のように設計
されているので、溶融ガラスは前記隙間に完全に充填さ
れる。そして、この充填されたガラスを冷却固化するこ
とにより、前記ヘッドコア圓は前記スライダ■の溝■に
固定し、前記スライダ■のディスク対向面（至）を研削
研磨することにより第１図に示す本実施例のコンポジッ
ト型磁気ヘッドが完成する。At this time, since the volume of the glass plate example is designed as described above, the molten glass is completely filled into the gap. Then, by cooling and solidifying the filled glass, the head core circle is fixed in the groove (2) of the slider (2), and the disc-facing surface (toward) of the slider (2) is ground and polished to form the head core shown in FIG. The composite magnetic head of the example is completed.
上述のような磁気ヘッドの製造方法では、ヘッドコア（
２１１をスライダ（支）の虜ノに挿入する際、前記ヘッ
ドコア（社）のディスク対向部αＱはガラス板■及びそ
の溶融ガラス（２０ａ）によって覆われているので、前
記ディスク対向部α湧が直接スライダーに衝突すること
はなく、ディスク対向部α９にカケ等が生じるのが防止
される。また、前記ガラス板■及びその溶融ガラス（２
０ａ）は前記ディスク対向部四の保護に用いられるだけ
でなく、ヘッドコア（社）を前記スライダ■の溝のに固
定する際にも用いられ、別遭ガラス棒等を製造、使用す
る必要はなく作業性が向上する。In the magnetic head manufacturing method described above, the head core (
When inserting 211 into the captive hole of the slider (support), since the disk-facing portion αQ of the head core is covered with the glass plate ■ and its molten glass (20a), the disk-facing portion α is directly exposed. There is no collision with the slider, and chips and the like are prevented from occurring on the disk facing portion α9. In addition, the glass plate (■) and its molten glass (2)
0a) is used not only to protect the disc facing portion 4, but also to fix the head core in the groove of the slider ②, eliminating the need to manufacture or use a glass rod or the like. Improves work efficiency.
（ト）発明の効果
本発明に依れば、ヘッドコアの媒体対向部にカケ等が生
じ、歩留りが悪化するのを防止し、しかもヘッドコアを
容易にスライダのコア収納部に固定することが出来、作
業性が向上したコンポジット型磁気ヘッドの製造方法を
提供し得る。(g) Effects of the Invention According to the present invention, it is possible to prevent deterioration in yield due to chipping in the medium facing portion of the head core, and to easily fix the head core to the core storage portion of the slider. A method for manufacturing a composite magnetic head with improved workability can be provided.
第１図乃至第１１図は本発明に係り、第１図はコンポジ
ット型磁気ヘッドの外観を示す斜視図、第２図、第３図
、第４図、第５図、第６図、第７図、第８図、第９図、
第１０図及び第１１図は夫々上記コンポジット型磁気ヘ
ッドの製造方法を示す図である。第２２図、第１３図及
び第１４図は夫々従来のコンポジット型磁気ヘッドの製
造方法を示す図である。
αｅ・・・コアブロック、０ｇ・・・トラック幅規制溝
、αｌ・・・ディスク対向部（媒体対向部）、■・・・
ガラス板、（２ｏａ）（ｚｏｂ）・・・溶融ガラス、（
２υ・・・ヘッドコア、（支）・・・スライダ、■・・
・溝（コア収納部）、（財）・・・ディスク対向面（媒
体対向面）。1 to 11 relate to the present invention; FIG. 1 is a perspective view showing the external appearance of a composite magnetic head, FIGS. 2, 3, 4, 5, 6, and 7. Figure, Figure 8, Figure 9,
FIGS. 10 and 11 are diagrams showing a method of manufacturing the composite magnetic head, respectively. FIG. 22, FIG. 13, and FIG. 14 are diagrams showing a conventional method of manufacturing a composite type magnetic head, respectively. αe...Core block, 0g...Track width regulating groove, αl...Disk facing part (medium facing part), ■...
Glass plate, (2oa) (zob)...molten glass, (
2υ...head core, (support)...slider, ■...
・Groove (core storage area), (Foundation)...Disk facing surface (medium facing surface).
Claims (2)
に嵌合固定したコンポジット型磁気ヘッドの製造方法に
おいて、強磁性酸化物材料よりなるコアブロックの上面
にトラック幅規制溝を加工して媒体対向部を形成する第
１の工程と、前記第１の工程終了後、前記媒体対向部の
上面にガラス板を載置し、該ガラス板を加熱溶融するこ
とにより前記トラック幅規制溝に前記ガラス板の一部を
充填する第２の工程と、前記第２の工程終了後、前記コ
アブロックを切断してヘッドコアを形成する第３の工程
と、前記第３の工程終了後、前記ヘッドコアをスライダ
のコア収納部に嵌め込み、前記ヘッドコアの上面に接合
されている前記ガラス板を加熱溶融することにより、該
溶融ガラスを前記ヘッドコアと前記スライダとの隙間に
浸透させ、前記ヘッドコアを前記コア収納部に固定する
第４の工程とから成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。(1) In a method for manufacturing a composite magnetic head in which a head core made of a ferromagnetic oxide material is fitted and fixed to a slider, track width regulating grooves are formed on the upper surface of the core block made of a ferromagnetic oxide material in the medium facing portion. After completing the first step, a glass plate is placed on the upper surface of the medium facing portion, and the glass plate is heated and melted to form the track width regulating groove. a second step of partially filling the core block; a third step of cutting the core block to form a head core after the second step; and a third step of cutting the core block to form a head core after the third step; By heating and melting the glass plate that is fitted into the storage portion and joined to the upper surface of the head core, the molten glass penetrates into the gap between the head core and the slider, and the head core is fixed to the core storage portion. A method for manufacturing a composite magnetic head, characterized in that it comprises a fourth step.
め込んだ際、前記ガラス板の前記スライダの媒体対向面
から突出している部分の体積が前記ヘッドコアと前記ス
ライダとの隙間の体積より大きくなるようにしたことを
特徴とするコンポジット型磁気ヘッドの製造方法。(2) When the head core is fitted into the core storage portion of the slider, the volume of the portion of the glass plate protruding from the medium facing surface of the slider is made larger than the volume of the gap between the head core and the slider. A method of manufacturing a composite magnetic head, characterized in that:
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP176588A JPH01178111A (en) | 1988-01-07 | 1988-01-07 | Manufacture of composite magnetic head |
| AU27706/89A AU589846B2 (en) | 1988-01-07 | 1989-01-04 | Process for producing magnetic head of floating type |
| DE8989100152T DE68908424D1 (en) | 1988-01-07 | 1989-01-05 | METHOD FOR PRODUCING A FLOATING MAGNETIC HEAD. |
| EP89100152A EP0324378B1 (en) | 1988-01-07 | 1989-01-05 | Process for producing magnetic head of floating type |
| CA000587596A CA1317749C (en) | 1988-01-07 | 1989-01-05 | Process for producing magnetic head of floating type |
| KR1019890000075A KR890012269A (en) | 1988-01-07 | 1989-01-06 | Manufacturing method of the floating magnetic head |
| US07/294,012 US4897915A (en) | 1988-01-07 | 1989-01-06 | Process for producing magnetic head of floating type |
| HK55694A HK55694A (en) | 1988-01-07 | 1994-05-24 | Process for producing magnetic head of floating type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP176588A JPH01178111A (en) | 1988-01-07 | 1988-01-07 | Manufacture of composite magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01178111A true JPH01178111A (en) | 1989-07-14 |
Family
ID=11510676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP176588A Pending JPH01178111A (en) | 1988-01-07 | 1988-01-07 | Manufacture of composite magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01178111A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62298010A (en) * | 1986-06-17 | 1987-12-25 | Seiko Epson Corp | Manufacturing method of composite floating magnetic head |
-
1988
- 1988-01-07 JP JP176588A patent/JPH01178111A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62298010A (en) * | 1986-06-17 | 1987-12-25 | Seiko Epson Corp | Manufacturing method of composite floating magnetic head |
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