JPS63257976A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS63257976A JPS63257976A JP9224687A JP9224687A JPS63257976A JP S63257976 A JPS63257976 A JP S63257976A JP 9224687 A JP9224687 A JP 9224687A JP 9224687 A JP9224687 A JP 9224687A JP S63257976 A JPS63257976 A JP S63257976A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- magnetic
- thermal conductivity
- disk medium
- high thermal
- 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
- 239000000463 material Substances 0.000 claims abstract description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は計算機の外部記憶装置に関し、特に磁気ディス
ク装置に用いられる磁気ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an external storage device for a computer, and particularly to a magnetic head used in a magnetic disk device.
磁気ディスク装置の高性能化は磁、ネヘッドと磁気ディ
スク媒体の改良によシ行なわれてきた。高性能化に最も
影響する改良は磁気ヘッドと磁気ディスク媒体の間隙を
小さくすることである。従来の技術としては磁気ディス
ク媒体表面の鏡面化および潤滑剤の塗布、さらに磁気ヘ
ッドのコンタクト・スタート・ストップ（以後Ｃ８Ｓと
言う）方式がある。The performance of magnetic disk devices has been improved by improving magnetic heads and magnetic disk media. The improvement that most affects performance is to reduce the gap between the magnetic head and the magnetic disk medium. Conventional techniques include mirror-finishing the surface of a magnetic disk medium, applying lubricant, and contact start/stop (hereinafter referred to as C8S) system for magnetic heads.
上述した従来のＣ８Ｓ方式の磁気ヘッドを用いた場合、
磁気ディスク媒体光面の鏡面化と潤滑剤の塗布は磁気ヘ
ッドが磁気ディスク媒体表面上に吸着現象を起こす。特
に設置環境が悪く、スピンドルモータの駆動力が小さい
小型ディスク装置ではスピンドルが回転できず、装置が
稼動できなくなるという欠点があった。When using the conventional C8S type magnetic head described above,
Mirroring the optical surface of the magnetic disk medium and applying lubricant causes the magnetic head to stick to the surface of the magnetic disk medium. Particularly in small disk devices where the installation environment is poor and the driving force of the spindle motor is small, the spindle cannot rotate and the device cannot operate.
本発明の磁気ヘッドは熱伝導率非廻性セラミック材を用
いたスライダーの中に電気的に発熱する金属を埋込み。The magnetic head of the present invention has an electrically heat-generating metal embedded in a slider made of a non-circulating ceramic material with thermal conductivity.
通電することにより磁気ヘッドのスライダ一部と磁気デ
ィスク媒体の間にある水分を蒸発させ、さらにその間に
ある潤滑剤の粘度を低下させて磁気ヘッドの吸着を防ぐ
ことを特徴とする。It is characterized in that by applying electricity, water between a portion of the slider of the magnetic head and the magnetic disk medium is evaporated, and the viscosity of the lubricant between them is further reduced to prevent the magnetic head from being attracted.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の断面図である。スライダー
材１は熱伝導率の大きいＥｒ０２．５ｉＣ−８ｉのセラ
ミック材により構成されている。ニクロム等の発熱体２
をスライダー材１の中に埋込む。FIG. 1 is a sectional view of an embodiment of the present invention. The slider material 1 is made of Er02.5iC-8i ceramic material with high thermal conductivity. Heating element 2 such as nichrome
embed in slider material 1.
＠線３は発熱体２と接続されている。The @ wire 3 is connected to the heating element 2.
第２図に２５℃、８０％ＲＨの環境中に４８時間磁気ヘ
ッドと磁気ディスク媒体を接触させた後の磁気ヘッドの
静摩擦係数（以後μＳと言う）を測定した。従来の磁気
ヘッドはμＳが４．０と大きい。In FIG. 2, the static friction coefficient (hereinafter referred to as μS) of the magnetic head was measured after the magnetic head and the magnetic disk medium were brought into contact for 48 hours in an environment of 25° C. and 80% RH. The conventional magnetic head has a large μS of 4.0.
それに比べ本発明の磁気ヘッドにおいて１０ｍＡ３０秒
間電流を通電させることにより、μＳは１．０になる。In contrast, in the magnetic head of the present invention, when a current of 10 mA is applied for 30 seconds, μS becomes 1.0.
さらに１０ｍＡ６０秒間通電させることによシさらにμ
Ｓは低くなり０．５になる。Further, by applying current of 10 mA for 60 seconds, the μ
S becomes low and becomes 0.5.
以上説明したように、本発明は高熱伝導率非磁性セラミ
ックスライダー材の中に電気的発熱体を埋込み通電する
ことによシ磁気ヘッドのスライダ一部と磁気ディスク媒
体の間にある水分を蒸発させ、さらに潤滑剤の粘度を低
下させ、磁気ヘッドの吸着力（静摩擦係数）を小さくで
きるという効果がある。As explained above, the present invention evaporates moisture between a part of the slider of a magnetic head and a magnetic disk medium by embedding an electric heating element in a high thermal conductivity non-magnetic ceramic slider material and energizing it. Furthermore, it has the effect of lowering the viscosity of the lubricant and reducing the adsorption force (static friction coefficient) of the magnetic head.
第１図は本発明の磁気ヘッドの断面図、第２図は磁気ヘ
ッドの静摩擦係数を示す図である。
１・・・・・・高熱伝導率非磁性セラミック、２・・・
・・・金属発熱体、３・・・・・・銅線。
代理人 弁理士 内 原 ” ７）町。
卒１フFIG. 1 is a sectional view of the magnetic head of the present invention, and FIG. 2 is a diagram showing the coefficient of static friction of the magnetic head. 1... High thermal conductivity non-magnetic ceramic, 2...
...Metal heating element, 3...Copper wire. Agent: Patent Attorney Uchihara 7) Town. Graduated from 1st grade.
Claims (1)
ことを特徴とする磁気ヘッド。A magnetic head characterized by a heat generating material embedded in a non-magnetic ceramic material with high thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9224687A JPS63257976A (en) | 1987-04-14 | 1987-04-14 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9224687A JPS63257976A (en) | 1987-04-14 | 1987-04-14 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63257976A true JPS63257976A (en) | 1988-10-25 |
Family
ID=14049068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9224687A Pending JPS63257976A (en) | 1987-04-14 | 1987-04-14 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63257976A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6822819B1 (en) | 2003-09-30 | 2004-11-23 | Hitachi Global Storage Technologies | Methods and apparatus for thermally bonding lubricant to a disk surface with use of a heating element formed in a magnetic head |
| US6831802B1 (en) | 2003-09-30 | 2004-12-14 | Hitachi Global Storage Technologies | Methods and apparatus for thermally bonding lubricant to a disk surface by the repetitive writing of data |
| US6954327B2 (en) | 2003-09-30 | 2005-10-11 | Hitachi Global Storage Technologies, B.V. | Methods and apparatus for thermally bonding lubricant to a disk surface with use of a heat source in a magnetic head |
| JP2010108539A (en) * | 2008-10-29 | 2010-05-13 | Toshiba Storage Device Corp | Storage device and method for adjusting film thickness of lubricating film |
-
1987
- 1987-04-14 JP JP9224687A patent/JPS63257976A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6822819B1 (en) | 2003-09-30 | 2004-11-23 | Hitachi Global Storage Technologies | Methods and apparatus for thermally bonding lubricant to a disk surface with use of a heating element formed in a magnetic head |
| US6831802B1 (en) | 2003-09-30 | 2004-12-14 | Hitachi Global Storage Technologies | Methods and apparatus for thermally bonding lubricant to a disk surface by the repetitive writing of data |
| US6954327B2 (en) | 2003-09-30 | 2005-10-11 | Hitachi Global Storage Technologies, B.V. | Methods and apparatus for thermally bonding lubricant to a disk surface with use of a heat source in a magnetic head |
| JP2010108539A (en) * | 2008-10-29 | 2010-05-13 | Toshiba Storage Device Corp | Storage device and method for adjusting film thickness of lubricating film |
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