JPH0518162B2 - - Google Patents
Info
- Publication number
- JPH0518162B2 JPH0518162B2 JP10222385A JP10222385A JPH0518162B2 JP H0518162 B2 JPH0518162 B2 JP H0518162B2 JP 10222385 A JP10222385 A JP 10222385A JP 10222385 A JP10222385 A JP 10222385A JP H0518162 B2 JPH0518162 B2 JP H0518162B2
- Authority
- JP
- Japan
- Prior art keywords
- base materials
- core base
- core
- glass
- metal
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 claims description 53
- 239000011521 glass Substances 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 239000010409 thin film Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 description 9
- 239000005355 lead glass Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 229910000702 sendust Inorganic materials 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 238000005219 brazing Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910017944 Ag—Cu Inorganic materials 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は磁気ヘツドの製造方法に関し、詳しく
はセンダスト合金等のメタルコアを使用したバル
ク型磁気ヘツドのコア接合技術に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a magnetic head, and more particularly to a core joining technology for a bulk type magnetic head using a metal core such as Sendust alloy.
従来の技術
従来、VTR装置等に使用される磁気ヘツドの
コアは、フエライト製が主流を占めていたが、こ
のフエライトコアは、磁気テープの磁性材料の発
達に伴つて高密度記録に限界があつて、最近はよ
り高密度記録を可能にするセンダスト合金等のメ
タルコアが多方面で使用される傾向にある。例え
ば、センダスト合金のメタルコアを使用した磁気
ヘツドの具体例を第５図を参照しながら説明す
る。同図に於いて、１はセンダスト合金製の第
１、第２のメタルコア２，３を、その頂端部に磁
気ギヤツプＧを形成して接合一体化したコアチツ
プで、上記第１、第２のメタルコア２，３は、両
メタルコア２，３の下部の接合面に形成された凹
溝４，４にAg−Cu等のロウ材５でロウ付けされ
て接合一体化される。６は船ガラスで、上記コア
チツプ１の磁気ギヤツプＧの近傍をトラツク幅寸
法ｔに規制するために形成された凹部に埋設され
ている。この船ガラス６は、ギヤツプ長寸法ｇ、
トラツク幅寸法ｔ、及びデプス寸法ｄから構成さ
れる上記磁気ギヤツプＧを保護する。７は第２の
メタルコア３の磁気ギヤツプ近傍の接合面に切削
形成された巻線用窓部、８，９は第１、第２のメ
タルコア２，３の両外方側面に形成された巻線係
止溝、１０は上記巻線用窓部７及び巻線係合溝
８，９を利用して第１、第２のメタルコア２，３
を所定ターン数巻回された巻線である。上記コア
チツプ１の頂端面であるテープ摺動面１１は、磁
気テープとの摺接を滑らかにするため所定の曲率
を持つ円弧状曲面に形成されている。Conventional technology In the past, the cores of magnetic heads used in VTR devices, etc. were mainly made of ferrite, but with the development of magnetic materials for magnetic tapes, this ferrite core had its limits in high-density recording. Recently, metal cores such as Sendust alloy, which enable higher density recording, are being used in many fields. For example, a specific example of a magnetic head using a metal core made of Sendust alloy will be described with reference to FIG. In the figure, reference numeral 1 denotes a core chip in which first and second metal cores 2 and 3 made of Sendust alloy are joined and integrated by forming a magnetic gap G at the top end thereof. 2 and 3 are integrally joined by brazing grooves 4 and 4 formed in the lower joint surfaces of both metal cores 2 and 3 with a brazing material 5 such as Ag-Cu. Reference numeral 6 denotes a ship's glass, which is embedded in a recess formed to regulate the vicinity of the magnetic gap G of the core chip 1 to a track width dimension t. This ship glass 6 has a gap length g,
The magnetic gap G, which is composed of a track width dimension t and a depth dimension d, is protected. 7 is a winding window cut and formed on the joint surface near the magnetic gap of the second metal core 3, and 8 and 9 are windings formed on both outer side surfaces of the first and second metal cores 2 and 3. The locking groove 10 connects the first and second metal cores 2 and 3 using the winding window 7 and the winding engagement grooves 8 and 9.
is a winding wire wound with a predetermined number of turns. The tape sliding surface 11, which is the top end surface of the core chip 1, is formed into an arcuate curved surface with a predetermined curvature to ensure smooth sliding contact with the magnetic tape.
第５図に示す磁気ヘツドのコアチツプ１は、第
６図乃至第１１図に示す工程で製造される。まず
第６図に示すように直方体形状のセンダスト合金
製の第１、第２のコア母材１２，１３についてそ
の接合すべき側面を研磨した後、第７図に示すよ
うに両コア母材１２，１３の外方側面に、その長
手方向に沿つて巻線係合溝となる凹溝１４，１５
を切削加工する。更に第１、第２のコア母材１
２，１３の接合面となる内方側面にその長手方向
に沿つて後述のロウ材が嵌挿されるＶ溝１６，１
７を切削加工すると共に、第２のコア母材１３の
内方側面に巻線用窓部となる切削溝１８を形成す
る。次に第８図に示すように第１、第２のコア母
材１２，１３の内方側面を衝合させると共に、Ｖ
溝１６，１７内に棒状のロウ材１９を嵌挿し、こ
の状態で上記第１、第２のコア母材１２，１３を
加熱することによりロウ付けして接合一体化す
る。その後第９図に示すように第１、第２のコア
母材１２，１３のテープ摺動予定面２０に、所定
のトラツク幅寸法ｔを残して複数のトラツク溝２
１，２１…を切削加工する。このトラツク溝加工
後、第１０図に示すように第１、第２のコア母材
１２，１３のテープ摺動予定面２０を、鉛ガラス
２２でガラスモールドし、第１１図に示すように
このガラスモールドした第１、第２のコア母材１
２，１３のテープ摺動面２３が所定の曲率を持つ
曲面になるように図示鎖線部分を研磨除去する。
尚、第１２図に示すように上記第１、第２のコア
母材１２，１３のガラスモールド時、鉛ガラス２
２とセンダスト合金製の第１、第２のコア母材１
２，１３とのなじみが悪く接着強度が低くなるた
め、このガラスモールドに先立つて、上記第１、
第２のコア母材１２，１３のテープ摺動予定面２
０にガラスとなじみの良いアルミナ等の下地層２
４を予めスパツタリング等によつて薄膜形成し、
該金属下地層２４上に鉛２２をガラスモールドす
る。そして上記研磨加工後、第１、第２のコア母
材１２，１３を一点鎖線Ｐ，Ｐ，…に沿つて、切
断ブレートによつて所定の間隔で切断し、第５図
に示すコアチツプ１を得る。この切断ブレードに
よる切断では、第１、第２のコア母材１２，１３
の隣り合う２つのトラツク溝２１，２１が切断面
に出て、その間の１つのトラツク幅寸法ｔが中央
に残る位置で行われる。 The core chip 1 of the magnetic head shown in FIG. 5 is manufactured by the steps shown in FIGS. 6 to 11. First, as shown in FIG. 6, the side surfaces of the rectangular parallelepiped-shaped first and second core base materials 12 and 13 made of Sendust alloy to be joined are polished, and then both core base materials 12 and 13 are polished as shown in FIG. , 13 are provided with concave grooves 14, 15 along the longitudinal direction thereof, which serve as winding engagement grooves.
Cutting process. Further, first and second core base materials 1
A V-groove 16, 1 into which a brazing material, which will be described later, is inserted along the longitudinal direction of the inner side surface that becomes the joining surface of 2, 13.
At the same time, cutting grooves 18 are formed on the inner side surface of the second core base material 13 to serve as winding windows. Next, as shown in FIG. 8, the inner side surfaces of the first and second core base materials 12 and 13 are abutted, and the V
A rod-shaped brazing material 19 is inserted into the grooves 16 and 17, and in this state, the first and second core base materials 12 and 13 are heated and brazed to be integrated. Thereafter, as shown in FIG. 9, a plurality of track grooves 2 are formed on the tape sliding surfaces 20 of the first and second core base materials 12 and 13, leaving a predetermined track width dimension t.
1, 21... are cut. After this track groove processing, as shown in FIG. 10, the tape sliding surfaces 20 of the first and second core base materials 12, 13 are molded with lead glass 22, and as shown in FIG. Glass-molded first and second core base materials 1
The portion indicated by the dashed line in the figure is polished away so that the tape sliding surfaces 23 of Nos. 2 and 13 become curved surfaces with a predetermined curvature.
Incidentally, as shown in FIG. 12, when the first and second core base materials 12 and 13 are glass-molded, the lead glass 2
2 and the first and second core base materials 1 made of Sendust alloy.
2 and 13, resulting in poor adhesion strength, so prior to this glass mold, the above 1.
Tape sliding surface 2 of second core base material 12, 13
Base layer 2 of alumina etc. that is compatible with glass
4 is formed into a thin film by sputtering etc. in advance,
Lead 22 is glass molded onto the metal base layer 24. After the above-mentioned polishing process, the first and second core base materials 12 and 13 are cut at predetermined intervals by a cutting blade along the dashed lines P, P, . . . to form the core chip 1 shown in FIG. obtain. In cutting with this cutting blade, the first and second core base materials 12, 13
Cutting is carried out at a position where two adjacent track grooves 21, 21 appear on the cutting surface and one track width dimension t between them remains in the center.
発明が解決しようとする問題点
上述したように従来製法における第１、第２の
コア母材１２，１３のテープ摺動予定面のガラス
モールドでは、接合一体化された第１、第２のコ
ア母材１２，１３をカーボン治具にて位置極め固
定した状態で加熱し、鉛ガラスを溶融させてい
る。この時、カーボン治具の素材であるカーボン
と、PbOからなる鉛ガラス２２とが反応して該鉛
ガラス２２が鉛に還元される。これにより析出さ
れた鉛が第１、第２のコア母材１２，１３の金属
下地層２４上に付着して第１、第２のコア母材１
２，１３のガラスモールド部分が外観上黒化す
る。ところで、上記ガラスモールド後、第１、第
２のコア母材１２，１３のテープ摺動予定面を研
磨加工するに際し、作業者がその研磨量を光学顕
微鏡で監視しながら磁気ギヤツプＧのデプス寸法
ｄを所望値に設定しているが、この時、第１、第
２のコア母材１２，１３のガラスモールド部分が
黒化していると、光学顕微鏡による研磨量の困難
となり、磁気ギヤツプＧのデプス寸法ｄを高精度
で設定することが難しく、その結果磁気ヘツドの
品質低下を招く虞もあつた。尚、上記ガラスモー
ルド時、第１、第２のコア母材１２，１３を位置
決め固定する治具は、高温加熱されるため、耐熱
性を有するカーボン製とのものが使用される。Problems to be Solved by the Invention As described above, in the glass mold of the tape sliding surface of the first and second core base materials 12 and 13 in the conventional manufacturing method, the first and second cores that are joined and integrated are The base materials 12 and 13 are fixed in position using a carbon jig and heated to melt the lead glass. At this time, carbon, which is the material of the carbon jig, reacts with the lead glass 22 made of PbO, and the lead glass 22 is reduced to lead. As a result, the precipitated lead adheres to the metal base layer 24 of the first and second core base materials 12 and 13, and the first and second core base materials 1
The glass mold parts 2 and 13 are blackened in appearance. By the way, when polishing the tape sliding surfaces of the first and second core base materials 12 and 13 after the above-mentioned glass molding, the operator monitors the amount of polishing with an optical microscope while checking the depth dimension of the magnetic gap G. d is set to a desired value, but at this time, if the glass mold parts of the first and second core base materials 12 and 13 are blackened, it will be difficult to measure the amount of polishing using an optical microscope, and the magnetic gap G will be difficult to measure. It is difficult to set the depth dimension d with high accuracy, and as a result, there is a risk that the quality of the magnetic head will deteriorate. Incidentally, during the glass molding process, the jig for positioning and fixing the first and second core base materials 12 and 13 is heated to a high temperature, so a jig made of heat-resistant carbon is used.
問題点を解決するための手段
本発明は上記問題点に鑑みて提案されたもの
で、この問題点を解決するための技術的手段は、
磁気ギヤツプを設けてロウ付け一体化された第
１、第２のコア母材の媒体摺動予定面に、トラツ
ク幅だけ残して多数のトラツク溝を形成する工程
と、上記第１、第２のコア母材のトラツク溝を含
む媒体摺動予定面上に薄膜状の下地層を被着形成
すると共に、該下地層上に非磁性及びモールドガ
ラスの金属酸化物に対して非還元性の金属下地層
を薄膜状に積層形成する工程と、上記第１、第２
のコア母材上に形成された金属下地層をガラスモ
ールドする工程と、第１、第２のコア母材をスラ
スト各コアチツプ毎に分割する工程と、を含む製
造方法とするものである。Means for Solving the Problems The present invention was proposed in view of the above problems, and technical means for solving the problems are as follows:
a step of forming a large number of track grooves, leaving only the track width, on the media sliding surfaces of the first and second core base materials, which are integrated by brazing with a magnetic gap; A thin film-like base layer is deposited on the media sliding surface including the track grooves of the core base material, and a metal base layer that is non-magnetic and non-reducible to the metal oxide of the molded glass is formed on the base layer. A step of layering the strata into a thin film, and the above-mentioned first and second steps.
The manufacturing method includes the steps of glass molding a metal base layer formed on the core base material, and dividing the first and second core base materials into thrust core chips.
作 用
上記技術的手段のように、第１、第２のコア母
材のトラツク溝加工後、下地層並びに金属下地層
を薄膜状に積層形成して上記第１、第２のコア母
材をガラスモールドするようになしたから、第
１、第２のコア母材のガラスモールド部分におい
て金属酸化物成分が還元されて析出し黒化するの
を未然に防止することができる。Effect As in the above technical means, after the track grooves are formed in the first and second core base materials, a base layer and a metal base layer are laminated in a thin film form to form the first and second core base materials. Since glass molding is used, it is possible to prevent metal oxide components from being reduced, precipitated, and blackened in the glass molded portions of the first and second core base materials.
実施例
本発明を第５図〜第１２図に示すバルク型磁気
ヘツドの製造に適用した一実施例を、第１図乃至
第４図を参照しながら説明する。第５図乃至第１
２図と同一部分には同一参照符号を付し重複説明
を省略する。本発明の特徴は、第１、第２のコア
母材１２，１３のガラスモールドの前工程にあ
る。即ち、第６図乃至第９図に示す従来製法と同
様に、センダスト合金製の第１、第２のコア母材
１２，１３の外方側面に凹溝１４，１５を、且
つ、内方側面にＶ溝１６，１７を切削加工すると
共に、第２のコア母材１３の内方側面に切削溝１
８を形成し、上記第１、第２のコア母材１２，１
３をロウ材１９にてロウ付けして接合一体化す
る。その後、第１、第２のコア母材１２，１３の
テープ摺動予定面２０に複数のトラツク溝２１，
２１…を所定の間隔で切削加工する。そしてこの
第１、第２のコア母材１２，１３のガラスモール
ドに先立つて、まず第１図に示すように第１、第
２のコア母材１２，１３のテープ摺動予定面２０
並びにトラツク溝２１，２１…内面にアルミナ
（Al2O3）等の下地層２４′をスパツタリングによ
り薄膜状に被着形成する。次に第２図に示すよう
に上記下地層２４′上に、非磁性及び鉛ガラス２
２のPbOに対して非還元性の金属、例えば銅
（Cu）等からなる金属下地層２５をスパツタリン
グにより薄膜状に積層形成する。その後、従来製
法と同様に、第３図に示すように上記第１、第２
のコア母材１２，１３の金属下地層２５を鉛ガラ
ス２２でガラスモールドし、この第１、第２のコ
ア母材１２，１３のガラスモールド部分を図示鎖
線で示すテープ摺動面２３まで、所定の曲率を持
つ曲面になるように所定量研磨加工する。この研
磨加工後、第４図鎖線で示すように上記第１、第
２のコア母材１２，１３を切断ブレードによつて
所定の間隔で切断してコアチツプを得る。Embodiment An embodiment in which the present invention is applied to manufacturing a bulk type magnetic head shown in FIGS. 5 to 12 will be described with reference to FIGS. 1 to 4. Figures 5 to 1
The same parts as in FIG. 2 are designated by the same reference numerals, and redundant explanation will be omitted. The feature of the present invention lies in the pre-process of glass molding of the first and second core base materials 12 and 13. That is, similarly to the conventional manufacturing method shown in FIGS. 6 to 9, grooves 14 and 15 are formed on the outer side surfaces of the first and second core base materials 12 and 13 made of Sendust alloy, and grooves 14 and 15 are formed on the inner side surfaces. At the same time, cutting grooves 16 and 17 are cut on the inner side surface of the second core base material 13.
8, and the first and second core base materials 12,1
3 are brazed with brazing material 19 to integrate them. After that, a plurality of track grooves 21,
21... are cut at predetermined intervals. Prior to glass molding of the first and second core base materials 12 and 13, first, as shown in FIG.
Further, a base layer 24' of alumina (Al 2 O 3 ) or the like is deposited in a thin film form on the inner surfaces of the track grooves 21, 21 by sputtering. Next, as shown in FIG. 2, a layer of non-magnetic and lead glass 2
A metal base layer 25 made of a non-reducing metal such as copper (Cu) with respect to PbO (No. 2) is laminated into a thin film by sputtering. After that, as in the conventional manufacturing method, as shown in FIG.
The metal base layer 25 of the core base materials 12 and 13 is glass molded with lead glass 22, and the glass molded portions of the first and second core base materials 12 and 13 are extended to the tape sliding surface 23 shown by the chain line in the figure. A predetermined amount of polishing is performed to obtain a curved surface with a predetermined curvature. After this polishing process, the first and second core base materials 12 and 13 are cut at predetermined intervals using a cutting blade, as shown by the chain lines in FIG. 4, to obtain core chips.
上記第１、第２のコア母材１２，１３のガラス
モールド時、第１、第２のコア母材１２，１３を
カーボン治具にて位置決め固定した状態で加熱し
て主な組成がPbOの鉛ガラス２２を溶融させるに
際し、金属下地層２５を形成する銅（Cu）が熱
力学的に安定した酸化銅（Cu2O）となり、該金
属下地層２５が保護膜となつて上記カーボン治具
のカーボンと鉛ガラス２２とが反応してPbOが鉛
に還元されるようにするのを防止する。これによ
り第１、第２のコア母材１２，１３の第２の金属
下地層２５上に鉛が析出して付着することがな
く、外観上、第１、第２のコア母材１２，１３の
ガラスモールド部分が黒化することがない。 When glass molding the first and second core base materials 12 and 13, the first and second core base materials 12 and 13 are heated while being positioned and fixed using a carbon jig so that the main composition is PbO. When the lead glass 22 is melted, the copper (Cu) forming the metal base layer 25 becomes thermodynamically stable copper oxide (Cu 2 O), and the metal base layer 25 acts as a protective film to form the carbon jig. This prevents the carbon from reacting with the lead glass 22 such that PbO is reduced to lead. This prevents lead from precipitating and adhering to the second metal base layer 25 of the first and second core base materials 12 and 13, and improves the appearance of the first and second core base materials 12 and 13. The glass mold part will not darken.
発明の効果
本発明によれば、第１、第２のコア母材のトラ
ツク溝加工後、第１、第２のコア母材のトラツク
溝を含む摺動予定面に下地層を形成すると共に、
該下地層上に非磁性及び非還元性の金属下地層を
積層形成してガラスモールドするようなしたが
ら、このガラスモールド時、上記第１、第２のコ
ア母材のガラスモールド部分の黒化を未然に防止
することができ、コアスライス作業性向上は勿論
第１、第２のコア母材の媒体摺動予定面の研磨加
工が容易且つ高精度に行えて高品質の磁気ヘツド
を提供することが可能となる。Effects of the Invention According to the present invention, after track grooves are formed in the first and second core base materials, a base layer is formed on the sliding surfaces including the track grooves of the first and second core base materials, and
A non-magnetic and non-reducible metal underlayer is laminated on the underlayer and glass molded. However, during this glass molding, blackening of the glass molded portions of the first and second core base materials is prevented. To provide a high-quality magnetic head that can prevent such occurrences and not only improve core slicing work efficiency but also allow easy and highly accurate polishing of the media sliding surfaces of first and second core base materials. becomes possible.
第１図乃至第４図は本発明に係る磁気ヘツドの
製造方法を説明するための要部拡大断面図であ
る。第５図はメタルコアを使用した磁気ヘツドの
一例を示す斜視図、第６図乃至第１１図は第５図
に示す磁気ヘツドの製造方法を説明するための各
工程図、第１２図は第１０図の要部拡大断面図で
ある。
１２，１３……第１、第２のコア母材、２０…
…媒体摺動予定面、２１……トラツク溝、２４′
……下地層、２５……金属下地層。
1 to 4 are enlarged sectional views of essential parts for explaining the method of manufacturing a magnetic head according to the present invention. FIG. 5 is a perspective view showing an example of a magnetic head using a metal core, FIGS. 6 to 11 are process diagrams for explaining the manufacturing method of the magnetic head shown in FIG. 5, and FIG. FIG. 2 is an enlarged cross-sectional view of the main part of the figure. 12, 13...first and second core base materials, 20...
...Medium sliding surface, 21...Track groove, 24'
... Base layer, 25... Metal base layer.
Claims (1)
第１、第２のコア母材の媒体摺動予定面に、トラ
ツク幅だけ残して多数のトラツク溝を形成する工
程と、 上記第１、第２のコア母材のトラツク溝を含む
媒体摺動予定面上に薄膜状の下地層を被着形成す
ると共に、該下地層上に非磁性及びモールドガラ
スの金属酸化物成分に対して非還元性の金属下地
層を薄膜状に積層形成する工程と、 上記第１、第２のコア母材上に形成された金属
下地層をガラスモールドする工程とを含むことを
特徴とする磁気ヘツドの製造方法。[Scope of Claims] 1. A step of forming a large number of track grooves, leaving only the track width, on the media sliding surface of the first and second core base materials, which are integrally brazed with a magnetic gap. A thin underlayer is deposited on the medium sliding surface including the track grooves of the first and second core base materials, and a non-magnetic and metal oxide component of the molded glass is coated on the underlayer. The method is characterized by comprising a step of laminating a non-reducible metal base layer in the form of a thin film, and a step of glass molding the metal base layer formed on the first and second core base materials. A method of manufacturing a magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10222385A JPS61260407A (en) | 1985-05-14 | 1985-05-14 | Production of magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10222385A JPS61260407A (en) | 1985-05-14 | 1985-05-14 | Production of magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61260407A JPS61260407A (en) | 1986-11-18 |
| JPH0518162B2 true JPH0518162B2 (en) | 1993-03-11 |
Family
ID=14321662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10222385A Granted JPS61260407A (en) | 1985-05-14 | 1985-05-14 | Production of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61260407A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0758527B2 (en) * | 1986-01-10 | 1995-06-21 | 株式会社日立製作所 | Magnetic head |
-
1985
- 1985-05-14 JP JP10222385A patent/JPS61260407A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61260407A (en) | 1986-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |