JPH04149819A - Magnetic disk and working method - Google Patents
Magnetic disk and working methodInfo
- Publication number
- JPH04149819A JPH04149819A JP27329190A JP27329190A JPH04149819A JP H04149819 A JPH04149819 A JP H04149819A JP 27329190 A JP27329190 A JP 27329190A JP 27329190 A JP27329190 A JP 27329190A JP H04149819 A JPH04149819 A JP H04149819A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- binder
- contact
- heat
- magnetic
- 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
- 238000000034 method Methods 0.000 title claims description 4
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 2
- 239000000696 magnetic material Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000020169 heat generation Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気ディスクに係り、特に磁気ヘッドと磁気デ
ィスクの接触における磁気ディスク損傷の軽減に良好な
磁気ディスク、及びその加工方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk, and more particularly to a magnetic disk that is suitable for reducing damage to the magnetic disk during contact between a magnetic head and a magnetic disk, and a method for processing the same.
従来は、特開昭５９−１６５２４３号に記載のように、
磁気ディスク装置駆動時におけるディスクとヘッドの摩
擦熱によりディスク面が炭化するようになっていた。Conventionally, as described in JP-A-59-165243,
When a magnetic disk device is driven, frictional heat between the disk and the head causes the surface of the disk to become carbonized.
上記炭化層は潤滑効果を有するが、従来技術はヘッドと
ディスクの接触が軽微である場合には、磁性粉等を互い
に、あるいは基板に固着させるための炭化水素系の結合
剤（バインダ）の炭化が起りにくく、潤滑剤の効果が小
さいと考えられる。The above-mentioned carbonized layer has a lubricating effect, but when the contact between the head and the disk is slight, the conventional technology uses carbonization of a hydrocarbon-based binder to fix magnetic powder etc. to each other or to the substrate. It is thought that this is less likely to occur and the effect of the lubricant is small.
本発明の目的は、ヘッドとディスクの接触が軽微な場合
でも潤滑効果を大きくし、ディスクの摩耗や発熱を防ぐ
ことにある。An object of the present invention is to increase the lubrication effect even when the contact between the head and the disk is slight, and to prevent wear and heat generation of the disk.
上記目的はディスク製造工程の１つであるディスク面加
工（バニッシュ加工）において、熱伝導率の低い材料か
ら成るスライダ、又は、熱伝導率の低い研摩粉から成る
研摩テープを、高速回転するディスクと摺動させてディ
スク製造過程で、ディスク表面のバインダを炭化させる
ことにより達成される。The above purpose is to apply a slider made of a material with low thermal conductivity or an abrasive tape made of abrasive powder with low thermal conductivity to a high-speed rotating disk during disk surface processing (vanishing), which is one of the disk manufacturing processes. This is accomplished by carbonizing the binder on the surface of the disk during the disk manufacturing process.
上記手段によれば、ディスク表面を熱伝導率の低い材料
で摺動することにより、摩擦熱の消散力１少なくなり、
ディスク表面のバインダが摩擦熱により炭化される。か
かる炭化層は、磁気ディスク装置駆動時には、ヘッドと
ディスクが接触した場合、潤滑剤として作用する。According to the above means, by sliding the disk surface with a material with low thermal conductivity, the dissipation force of frictional heat is reduced by 1,
The binder on the disk surface is carbonized by frictional heat. Such a carbonized layer acts as a lubricant when a head and a disk come into contact with each other during driving of a magnetic disk device.
本発明の一実施例を第１図により説明する８第１図は、
磁気ディスクのバインダ３を炭化させ、炭化層２を形成
した磁気ディスクである。One embodiment of the present invention will be explained with reference to FIG. 1.8 FIG.
This is a magnetic disk in which a binder 3 of the magnetic disk is carbonized to form a carbonized layer 2.
本発明の加工方法を第１図、第２図、第３図により説明
する。The processing method of the present invention will be explained with reference to FIGS. 1, 2, and 3.
第１図、第２図に示す如く、磁気ディスクの磁性層１０
は、バインダ３．フィラー４．磁性体５から成り、基板
６に形成される。ディスクを高速回転させ、熱伝導率の
低いスライダ１に荷重を加え、摺動し、摩擦熱を発生さ
せることにより、バインダ３の表面、又は、全体の温度
が上昇する。As shown in FIGS. 1 and 2, the magnetic layer 10 of the magnetic disk
is binder 3. Filler 4. It consists of a magnetic material 5 and is formed on a substrate 6. By rotating the disk at high speed and applying a load to the slider 1, which has low thermal conductivity, the slider 1 slides and generates frictional heat, thereby increasing the temperature of the surface or the entire binder 3.
そのために、バインダ３の表面、又は、全体が炭化され
炭化層２が出来る。For this purpose, the surface or the entire binder 3 is carbonized to form a carbonized layer 2.
第３図は、第２図のスライダの代わりに、熱伝導率の低
い研摩粉を使用した研摩テープ７を使用したものである
。In FIG. 3, an abrasive tape 7 made of abrasive powder with low thermal conductivity is used instead of the slider in FIG. 2.
第２図、第３図で作製したディスクとヘッドの接触した
状態を第４図に示す。FIG. 4 shows a state in which the disk manufactured in FIGS. 2 and 3 is in contact with the head.
本発明では、ディスクとヘッドが接触すると、第２図、
第３図の方法で形成した炭化層２に潤滑効果があるため
に、ディスク円周方向の接線力、発熱が減り、ディスク
摩耗や熱による記録信号の再生出力の低下を部ぐことか
できる。In the present invention, when the disk and head come into contact, FIG.
Since the carbonized layer 2 formed by the method shown in FIG. 3 has a lubricating effect, tangential force in the circumferential direction of the disk and heat generation are reduced, and a decrease in the reproduction output of recorded signals due to disk wear and heat can be avoided.
本発明によれば、あらかじめディスク表面に炭化層を設
けているため、ディスクバインダが炭化しにくい軽微な
ヘッドとディスクの接触でも、充分炭化層が潤滑剤の働
きをし、ディスク記録層１０の摩耗や、発熱を防ぎ、記
録信号の再生出力の低下を防止する効果がある。According to the present invention, since the carbonized layer is provided on the disk surface in advance, even if there is slight contact between the head and the disk in which the disk binder is difficult to carbonize, the carbonized layer acts as a lubricant and the disk recording layer 10 wears out. It also has the effect of preventing heat generation and reducing the reproduction output of recorded signals.
第１図は本発明の磁気ディスク断面図、第２図。
第３図はそれぞれ本発明の実施例の加工方法とディスク
断面図、第４図は本発明の加工法により作製したディス
クとヘッドの接触を示すヘッドとディスク断面図である
。
１・・・スライダ、２・・・炭化層、３・・・バインダ
、４・・・フィラー ５・・・磁性粉、６・・・基板、
７・・・研摩テープ、８・・・加圧ロール、９・・・デ
ィスク回転方向、１０・・・スライダ移動方向、１１・
・・磁気ヘラ阻μ５
ν
第
田
名FIG. 1 is a sectional view of the magnetic disk of the present invention, and FIG. FIG. 3 shows a processing method according to an embodiment of the present invention and a sectional view of a disk, and FIG. 4 shows a sectional view of a head and a disk manufactured by the processing method of the present invention, showing contact between the disk and the head. DESCRIPTION OF SYMBOLS 1...Slider, 2...Carbonized layer, 3...Binder, 4...Filler 5...Magnetic powder, 6...Substrate,
7... Polishing tape, 8... Pressure roll, 9... Disc rotation direction, 10... Slider moving direction, 11...
...magnetic spatula inhibition μ5 ν No. name
Claims (1)
設けたことを特徴とした磁気ディスク。 ２、熱伝導率が０．０４ｃａｌ／ｃｍ・ｓｅｃ・℃以下
の熱伝導率の低い材料を用いたスライダ、又は、研摩粉
を塗布した研摩テープで、押付荷重５００ｇｆ／ｃｍ＾
２以上の荷重で回転する、ディスク表面を摺る事により
、ディスク表面にバインダの炭化層を設けることを特徴
とする磁気ディスクの加工方法。[Claims] 1. A magnetic disk characterized in that a carbonized layer is provided on the disk surface during the magnetic disk manufacturing process. 2. Using a slider made of a material with low thermal conductivity of 0.04 cal/cm・sec・℃ or less, or an abrasive tape coated with abrasive powder, with a pressing load of 500 gf/cm^
A method for processing a magnetic disk, which rotates under a load of 2 or more and is characterized in that a carbonized layer of binder is provided on the disk surface by rubbing the disk surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27329190A JPH04149819A (en) | 1990-10-15 | 1990-10-15 | Magnetic disk and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27329190A JPH04149819A (en) | 1990-10-15 | 1990-10-15 | Magnetic disk and working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04149819A true JPH04149819A (en) | 1992-05-22 |
Family
ID=17525807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27329190A Pending JPH04149819A (en) | 1990-10-15 | 1990-10-15 | Magnetic disk and working method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04149819A (en) |
Cited By (3)
| 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 |
-
1990
- 1990-10-15 JP JP27329190A patent/JPH04149819A/en active Pending
Cited By (3)
| 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 |
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