JPH03691B2 - - Google Patents
Info
- Publication number
- JPH03691B2 JPH03691B2 JP20689481A JP20689481A JPH03691B2 JP H03691 B2 JPH03691 B2 JP H03691B2 JP 20689481 A JP20689481 A JP 20689481A JP 20689481 A JP20689481 A JP 20689481A JP H03691 B2 JPH03691 B2 JP H03691B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- notch
- wear resistance
- magnetic
- filled
- 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
Links
- 239000011521 glass Substances 0.000 claims description 10
- 239000011162 core material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005530 etching Methods 0.000 claims 1
- 238000010884 ion-beam technique Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000696 magnetic material Substances 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
【発明の詳細な説明】
本発明は、磁気ヘツドの製造方法にかかわり、
特に高精度ギヤツプ形成とボイドレスガラスボン
デイングを行う方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a magnetic head,
In particular, it relates to a method for high precision gap formation and voidless glass bonding.
フエライトは、磁気特性、耐摩耗性、機械加工
性が優れているため、磁気ヘツド用コア材として
広く用いられている。特にビデオヘツドのような
狭トラツクのヘツドでは、第１図〜第３図に示す
ように、２本のフエライトコア１および２をギヤ
ツプ幅Glに等しい間隔をおいて対向させ、その空
隙は、ガラス等の非磁性体層３で形成され、耐摩
耗性を向上させるため、所要のトラツク部４の両
側に耐摩耗性の良いガラスを充填したガラス補強
部５を設けることが行われている。 Ferrite is widely used as a core material for magnetic heads because of its excellent magnetic properties, wear resistance, and machinability. Particularly in a head with a narrow track such as a video head, two ferrite cores 1 and 2 are placed facing each other at a distance equal to the gap width Gl , as shown in FIGS. 1 to 3, and the gap is It is formed of a non-magnetic material layer 3 such as glass, and in order to improve wear resistance, glass reinforcing parts 5 filled with glass having good wear resistance are provided on both sides of a required track part 4.
ところで、このガラスをガラス補強部に流入さ
せるには、高温で熱処理を行わなければならない
が、テープ摺動面６のガラス中に気泡７が残る
と、記録信号の減磁やテープきずの発生の原因と
なり、磁気ヘツドにとつては致命的な欠陥とな
る。このため、ガラス粘土を１０2Pa Incidentally, in order to flow this glass into the glass reinforcing section, heat treatment must be performed at a high temperature, but if air bubbles 7 remain in the glass on the tape sliding surface 6, demagnetization of the recording signal and generation of tape scratches may occur. This is a fatal defect for magnetic heads. For this reason, glass clay at 10 2 P a
Claims (1)
るコア材をギヤツプ幅の間隔をおいて対向させ、
前記切欠き部にガラスを充填する磁気ヘツドの製
造方法において、前記切欠き部の表面をイオンビ
ームを用いて均一にエツチングした後、ガラスを
充填させることを特徴とする磁気ヘツドの製造方
法。1. Core materials having notches for forming track portions are placed opposite each other with an interval of the gap width,
A method of manufacturing a magnetic head in which the notch is filled with glass, the method comprising: uniformly etching the surface of the notch using an ion beam, and then filling the notch with glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20689481A JPS58111122A (en) | 1981-12-23 | 1981-12-23 | Manufacturing method of magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20689481A JPS58111122A (en) | 1981-12-23 | 1981-12-23 | Manufacturing method of magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58111122A JPS58111122A (en) | 1983-07-02 |
| JPH03691B2 true JPH03691B2 (en) | 1991-01-08 |
Family
ID=16530812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20689481A Granted JPS58111122A (en) | 1981-12-23 | 1981-12-23 | Manufacturing method of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111122A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6276018A (en) * | 1985-09-30 | 1987-04-08 | Tohoku Metal Ind Ltd | Production of composite type magnetic head |
-
1981
- 1981-12-23 JP JP20689481A patent/JPS58111122A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58111122A (en) | 1983-07-02 |
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