JPS58224439A - Manufacture of magnetic disk - Google Patents

Manufacture of magnetic disk

Info

Publication number
JPS58224439A
JPS58224439A JP10796882A JP10796882A JPS58224439A JP S58224439 A JPS58224439 A JP S58224439A JP 10796882 A JP10796882 A JP 10796882A JP 10796882 A JP10796882 A JP 10796882A JP S58224439 A JPS58224439 A JP S58224439A
Authority
JP
Japan
Prior art keywords
magnetic disk
magnetic
lubricant
disk
rough
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
Application number
JP10796882A
Other languages
Japanese (ja)
Inventor
Kenichi Ito
健一 伊藤
Tadatoshi Suenaga
末永 忠利
Miyozo Maeda
巳代三 前田
Toshikatsu Narumi
利勝 鳴海
Shigeru Fukushima
茂 福島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10796882A priority Critical patent/JPS58224439A/en
Publication of JPS58224439A publication Critical patent/JPS58224439A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84Processes or apparatus specially adapted for manufacturing record carriers

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To prevent fouling between a rough part and a magnetic disk and the stripping of the rough part, by applying a lubricant to the rough part formed on the surface of the slider of a varnishing head and by carrying out varnishing while rotating the magnetic disk. CONSTITUTION:A rough part 2 is formed on the surface 11 of the slider 1 of a varnishing head 3 attached to gimbal spring 6 by sticking a lapping tape having an abrasive grain layer contg. hard fine grains to the surface 11 with a double- coated adhesive tape 7 or an adhesive. A soln. of a lubricant such as perfluoroalkyl polyether is applied to the part 2 and dried. The part 2 is then brought into contact with the magnetic layer of a magnetic disk 4, and the surface of the magnetic layer is varnished while rotating the disk 4. Thus, the surface finishing of the ramp load type magnetic disk is carried out without causing fouling between the part 2 and the magnetic layer and the stripping of the part 2 owing to the lubricant applied to the part 2.

Description

【発明の詳細な説明】 (a)発明の技術分野 本発明は、電子計算機システムの外部記憶装置として使
用される磁気ディスクの製造方法に関し、特に磁気ディ
スクの表面の仕上げ方法に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a method of manufacturing a magnetic disk used as an external storage device of a computer system, and more particularly to a method of finishing the surface of a magnetic disk.

(bl技術の背景 周知のように、高速読書き用の磁気ディスク装置では、
磁気ヘットが磁気ディスクの面かられずかに浮上した状
態で情報の読書きを行なえるように、磁気ヘッドのスラ
イダに発生ずる浮力で磁気ヘッドをディスク面から浮き
上がらせるようにしている。この浮上ギャップは、1ミ
クロン以下のため、磁気ディスクの表面の仕上げが粗い
と、ヘソ「クラッシュが発生したり、情報の読書きを正
確に行なえないなどの恐れがある。そのため通常は、ア
ルミ基板に磁気塗料を塗布して熱処理した後、ポリッシ
ュおよび洗浄工程を経て、最終的にバーニッシュ処理を
行なっている。
(Background of BL technology As is well known, in magnetic disk drives for high-speed reading and writing,
In order to read and write information while the magnetic head floats slightly above the surface of the magnetic disk, the buoyancy generated in the slider of the magnetic head lifts the magnetic head above the disk surface. This floating gap is less than 1 micron, so if the surface of the magnetic disk has a rough finish, there is a risk of a crash or an inability to read and write information accurately.Therefore, aluminum substrates are usually used. After applying magnetic paint and heat treating it, it undergoes polishing and cleaning steps, and finally varnishing.

(C1従来技術とその問題点 このバーニッシュ処理を高精度に行なうために、本発明
の発明者らは先に、第1図のように、スライダ1のスラ
イダ面に砥粒層から成る粗面部2を設けることによって
バーニッシュヘッド3を構成し、このバーニッシュヘッ
ドの粗面部2を、回転している磁気ディスク4の表面の
磁性膜5に接触させた状態で、磁気ディスク4の径方向
へ往復動させる方法を提案している。6はジンバルと呼
ばれる板ハネで、これによってバーニッシュへソド3は
、スライダ面の全面が均一にディスク面に弾圧される。
(C1 Prior Art and its Problems) In order to perform this burnishing process with high precision, the inventors of the present invention first created a rough surface portion made of an abrasive grain layer on the slider surface of the slider 1, as shown in FIG. 2 constitutes a burnish head 3, and with the rough surface portion 2 of the burnish head in contact with the magnetic film 5 on the surface of the rotating magnetic disk 4, the burnish head 2 is rotated in the radial direction of the magnetic disk 4. A method of reciprocating the slider is proposed. 6 is a plate called a gimbal, which causes the burnishing blade 3 to be evenly pressed against the disk surface over the entire slider surface.

ところが高速で回転している磁気ディスク4の表面にバ
ーニッシュヘッド3を接触させるため、パーニソシュヘ
ソ]・の粗面部2とディスク表面5との摩擦熱で焼き付
きが発生する。そのため、磁気ディスクの表面5に潤滑
剤を塗布して摩擦係数を小さくした状態で、バーニッシ
ュ処理を行なっている。この方法は、潤滑剤が必要なC
55(C。
However, since the burnish head 3 is brought into contact with the surface of the magnetic disk 4 that is rotating at high speed, burn-in occurs due to frictional heat between the rough surface 2 of the magnetic disk 4 and the disk surface 5. Therefore, the burnishing process is performed with a lubricant applied to the surface 5 of the magnetic disk to reduce the coefficient of friction. This method requires C
55 (C.

ntact  5tart 5top )方式のディス
クではむしろ好都合であるが、スタート時やスl〜ツブ
時の接触摺動のないランプロード方式のディスクでは、
ディスク面に潤滑剤は塗布されず、そのためにバーニッ
シュヘッドの粗面部とディスク面間で焼ぎ付きが発生し
たり、その結果粗面部が剥離したりする。
This is rather convenient for disks using the ntact 5tart 5top) method, but for disks using the ramp load method, where there is no contact and sliding at the time of starting or from slip to tip.
No lubricant is applied to the disk surface, which may cause seizing between the rough surface of the burnish head and the disk surface, and as a result, the rough surface may peel off.

(di発明の目的 本発明は、このようにディスク面に潤滑剤を塗布しない
ランプロ=F式のディスク表面においても、バーニッシ
ュ処理時に焼き付きが発生しないようにすることを目的
とする。
(DI Purpose of the Invention The object of the present invention is to prevent burn-in from occurring during burnishing even on the disk surface of the Lampro-F type in which no lubricant is applied to the disk surface.

[e1発明の構成 この目的を達成するために本発明は、スライダ面に、硬
質微粒子を含む砥粒層より成る粗面部を設りてバーニッ
シュヘッドを構成すると共に、この粗面部に潤滑剤を含
ませ、円盤の表面に磁性膜を備えた磁気ディスクを回転
させながら、前記ハーニソシュヘソ)・の粗面部を磁気
ディスクの表面に接触させた状態で、ハーニノシュヘソ
]を移動させることによりバーニッシュを行なう方法を
採っている。
[e1 Structure of the Invention In order to achieve this object, the present invention provides a burnish head by providing a rough surface portion made of an abrasive layer containing hard fine particles on the slider surface, and also provides a lubricant to this rough surface portion. A method of performing burnishing by moving a magnetic disk with a magnetic film on its surface while rotating the magnetic disk with the rough surface of the magnetic disk in contact with the surface of the magnetic disk. are taken.

(f)発明の実施例 次に本発明による磁気ディスクの製造方法の実施例を説
明する。第2図はバーニッシュヘッドを拡大して示した
側面図で、バーニッシュヘッド3のディスク面5と対向
するスライダ面11に、粗面部2が設けられている。粗
面部2は、両面接着テープ7や接着剤で市販のラッピン
グテープをスライダ面11に貼り付けすることによって
形成するのが簡便である。あるいは第3図のように、ロ
ール状に巻かれたラッピングテープ21をスライダ面と
ディスク面5間に挾み、使用済みのテープを巻取ること
によって、新しい粗面部を次々供給できるようにしても
よい。なおラッピングテープは通常、マイラーフィルム
等に、アルミナ等の硬質砥粒を有機物のバインダで接着
した構成になっている。
(f) Embodiments of the Invention Next, embodiments of the method of manufacturing a magnetic disk according to the present invention will be described. FIG. 2 is an enlarged side view of the burnish head, in which a rough surface portion 2 is provided on the slider surface 11 facing the disk surface 5 of the burnish head 3. As shown in FIG. The rough surface portion 2 is easily formed by applying a commercially available wrapping tape to the slider surface 11 using double-sided adhesive tape 7 or an adhesive. Alternatively, as shown in Fig. 3, a wrapping tape 21 wound into a roll is sandwiched between the slider surface and the disk surface 5, and new rough surface parts can be supplied one after another by winding up the used tape. good. Note that lapping tape usually has a structure in which hard abrasive grains such as alumina are adhered to a Mylar film or the like using an organic binder.

粗面部は、ラッピングテープの粗面部と同じ材質の砥粒
をバインダでスライダ面に直接固着させることもできる
が、粗面部の着は替えができない問題がある。
For the rough surface portion, abrasive grains made of the same material as the rough surface portion of the lapping tape can be directly fixed to the slider surface using a binder, but there is a problem that the adhesive on the rough surface portion cannot be changed.

そして粗面部2には、/l1lI滑剤を適量塗布して含
浸される。潤滑剤としては、パーフロロアルキルポリエ
ーテル等の液体潤滑剤が良(、例えばよく知られている
Kryt、ox (登録商標、Du Font i!J
)やFomblin  (登録商標、Montedis
onM)などが好ましい。これをフロロカーボン溶剤(
Fe12.3M製など)に溶解させ、この溶液に粗面部
2を浸漬させた後取り出して乾燥させる。溶液の濃度は
、薄すぎると摩擦低減効果が不足し、濃すぎると過剰の
/Iil!/i!刑がべたついたりしてディスク面5に
付着し、−5= シミなどを発生させる。実験結果では、2〜20重量%
が適当である。なお潤滑剤の含浸法は、/lIJ滑剤の
溶液中に粗面部を浸漬するほか、へケ塗りやスプレーな
どによってもよい。
Then, the rough surface portion 2 is impregnated by applying an appropriate amount of /l1lI lubricant. As a lubricant, liquid lubricants such as perfluoroalkyl polyether are suitable (for example, the well-known Kryt, ox (registered trademark, Du Fonti!J)
) and Fomblin (registered trademark, Montedis
onM) etc. are preferred. Add this to fluorocarbon solvent (
The rough surface portion 2 is immersed in this solution, taken out, and dried. If the concentration of the solution is too thin, the friction reduction effect will be insufficient, and if it is too thick, it will be excessive /Iil! /i! The paint becomes sticky and adheres to the disk surface 5, causing -5=stains and the like. According to experimental results, 2-20% by weight
is appropriate. The method of impregnating the lubricant may include immersing the rough surface in a solution of /lIJ lubricant, or by brushing or spraying.

次に潤滑剤の実施例を説明する。Next, examples of lubricants will be described.

実施例]、 : Krytoに5重量%のフロロカーボ
ン溶剤(Fe12)に、粗面部形成用のラッピングテー
プ(粒度3μm、3M製)を浸漬した後取り出して、フ
ロロカーボン溶剤(Fe2.7)溶液が蒸発してから、
ランプロード式磁気ヘッドのスライダに貼り付けること
によって、バーニッシュヘッドとした。
Example]: A wrapping tape (particle size 3 μm, manufactured by 3M) for forming a rough surface was immersed in 5% by weight of Kryto fluorocarbon solvent (Fe12) and then taken out, and the fluorocarbon solvent (Fe2.7) solution was evaporated. After that,
A burnish head was created by attaching it to the slider of a ramp-load type magnetic head.

ポリッシュおよび洗浄の各工程を終了し、且つ/li!
I滑剤を塗布してない磁気ディスクを回転させながら、
前記の潤滑剤が含浸されたバーニッシュヘッドをジンバ
ル6のバネ圧で押圧して、粗面部2でバーニッシュ処理
を行なった。その結果、ラッピングテープの焼きつきや
シミの発生もなく、且つ効果的なバーニッシュができた
Finish each step of polishing and washing, and /li!
While rotating a magnetic disk that has not been coated with lubricant,
The burnishing head impregnated with the lubricant was pressed by the spring pressure of the gimbal 6 to perform burnishing on the rough surface portion 2. As a result, an effective varnish was achieved without burning or staining the wrapping tape.

比較例1:実施例1に用いた磁気ディスクを、潤滑剤を
含浸してないラッピングテープを貼り付6− けたバーニッシュヘットでバーニッシュ処理したところ
、ラッピングチーブの砥粒層が、焼きつきのために1分
くらいの短時間で消失した。
Comparative Example 1: When a lapping tape not impregnated with lubricant was attached to the magnetic disk used in Example 1 and burnished with a 6-digit burnish head, the abrasive grain layer of the lapping chevron was damaged due to seizure. It disappeared in a short period of about 1 minute.

実施例2 : KrytoxlO重量%のフロロカーボ
ン溶剤(Fe12)に、粗面部形成用のラッピングテー
プ(粒度9μm、3M製)を浸漬した後取り出して、フ
ロロカーボン溶剤(Fe12)溶液を蒸発乾燥させてか
ら、ランプロード式磁気ヘソFのスライダ面に貼り付け
ることによって、バーニッシュヘッドとした。
Example 2: A wrapping tape for forming a rough surface (particle size 9 μm, manufactured by 3M) was immersed in a fluorocarbon solvent (Fe12) containing KrytoxlO weight %, and then taken out. After the fluorocarbon solvent (Fe12) solution was evaporated and dried, a lamp was used. By pasting it on the slider surface of the load-type magnetic heel F, a burnish head was created.

アルミ基板に磁気塗料をスピンヨー1−bを施した塗膜
を、ポリッシュおよび洗浄を行なわないでそのまま、」
1記のバーニッシュヘットでバーニッシュを行なったと
ころ、ラッピングテープの焼きつきやシミの発生もなく
、効果的に表面の突起を除去することができた。
A coating film made by applying Spinyo 1-b magnetic paint to an aluminum substrate is left as is without polishing or cleaning.
When burnishing was performed using the burnish head described in No. 1, protrusions on the surface could be effectively removed without burning or staining of the wrapping tape.

比較例2:実施例2に用いた磁気ディスクを、潤湯剤を
含浸してないラッピングチーブを貼り付けたバーニッシ
ュヘッドでバーニッシュ処理したところ、ラッピングテ
ープの砥粒層が、焼きつきのためにディスク面にこびり
イ」き、1分くらいの短時間で消失した。
Comparative Example 2: When the magnetic disk used in Example 2 was burnished with a varnish head to which a lapping tape not impregnated with a moistening agent was attached, the abrasive grain layer of the lapping tape was damaged due to seizure. It got stuck on the disc surface and disappeared in about a minute.

+g1発明の効果 以」二のように本発明によれば、バーニッシュヘット′
のスライダ面に設けられた粗面部に/ll’fk剤を含
ませ、磁気ディスクを回転させながら、前記のバーニッ
シュヘットの粗面部を磁気ディスクの表面に接触させた
状態で、バーニッシュヘットを移動させることによりバ
ーニッシュを行なう方法を採っている。そのため、ディ
スク面に/18!滑剤が塗布されないランプローl:式
の磁気ディスクにおいても、焼きつきを起したりするこ
となしに、円滑にバーニッシュ処理を行なうことができ
る。また第4図に示すように、従来のポリッシュ加工で
は、磁性膜5の鎖線L2で示ずレヘルまで平滑化し、そ
の後バーニッシュを施して磁気ヘットの浮上性を保証し
ていた。ところが本発明によれば、このようなポリッシ
ュ加工を行なう前の状態の粗い磁性膜面でも、潤肩剤の
作用により、焼きつきなどを起すことなしにLl で示
ずレヘルまで平滑化してバーニッシュ仕上げすることが
でき、そのまま磁気ヘッドを浮上さ・lるごとかできる
。従って本発明によれば、1つの工程で磁気ディスクの
表面仕上げを行なうことも可能である。
+g1 Effects of the Invention According to the present invention, as described in ``2'', burnish head '
The rough surface part provided on the slider surface of the burnish head is impregnated with /ll'fk agent, and while the magnetic disk is rotated, the rough surface part of the burnish head is brought into contact with the surface of the magnetic disk. We use a method of performing burnishing by moving. Therefore, /18! Even on magnetic disks of the Ramp Roll I type to which no lubricant is applied, burnishing can be smoothly performed without causing burn-in. Further, as shown in FIG. 4, in the conventional polishing process, the magnetic film 5 is smoothed to a level not shown by the chain line L2, and then burnished to ensure the flying properties of the magnetic head. However, according to the present invention, even the rough surface of the magnetic film before polishing is smoothed and burnished to a level not shown by Ll without causing burn-in due to the action of the lubricant. It can be finished and the magnetic head can be flown as is. Therefore, according to the present invention, it is also possible to finish the surface of a magnetic disk in one step.

【図面の簡単な説明】 第1図はバーニッシュヘッドによる磁気ディスクのバー
ニッシュ処理を示す側面図、第2図はバーニッシュヘッ
トの拡大側面図、第3図はバーニッシュへ・7ドの他の
例を示す側面図、第4図は磁気ディスクの断面を拡大し
て示した図である。 図において、1はスライダ、2は粗面部、3はバーニッ
シュヘット、4は磁気ディスク、5は磁気ディスクの表
面(磁性膜)、6はジンバルをそれぞれ示す。 特許出願人      富士通株式会社代理人 弁理士
    青 柳   稔9− 一24二
[Brief Description of the Drawings] Figure 1 is a side view showing burnishing of a magnetic disk by the burnish head, Figure 2 is an enlarged side view of the burnish head, and Figure 3 is a side view of the burnish head. FIG. 4 is an enlarged view of a cross section of a magnetic disk. In the figure, 1 is a slider, 2 is a rough surface portion, 3 is a burnish head, 4 is a magnetic disk, 5 is a surface (magnetic film) of the magnetic disk, and 6 is a gimbal. Patent applicant: Fujitsu Limited Agent: Patent attorney: Minoru Aoyagi 9-1242

Claims (1)

【特許請求の範囲】[Claims] スライダ面に、硬質微粒子を含む砥粒層より成る粗面部
を設けてバーニッシュヘッドを構成すると共に、この粗
面部に潤滑剤を含ませ、円盤の表面に磁性膜を備えた磁
気ディスクを回転させながら、前記バーニッシュヘッド
の粗面部を磁気ディスクの表面に接触させた状態で、バ
ーニッシュヘッドを移動させることによりバーニッシュ
を行なうことを特徴とする磁気ディスクの製造方法。
A burnish head is constructed by providing the slider surface with a rough surface made of an abrasive layer containing hard fine particles, and this rough surface is impregnated with lubricant to rotate a magnetic disk having a magnetic film on the surface of the disk. A method for manufacturing a magnetic disk, characterized in that burnishing is performed by moving the burnish head while the rough surface portion of the burnish head is in contact with the surface of the magnetic disk.
JP10796882A 1982-06-23 1982-06-23 Manufacture of magnetic disk Pending JPS58224439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10796882A JPS58224439A (en) 1982-06-23 1982-06-23 Manufacture of magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10796882A JPS58224439A (en) 1982-06-23 1982-06-23 Manufacture of magnetic disk

Publications (1)

Publication Number Publication Date
JPS58224439A true JPS58224439A (en) 1983-12-26

Family

ID=14472628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10796882A Pending JPS58224439A (en) 1982-06-23 1982-06-23 Manufacture of magnetic disk

Country Status (1)

Country Link
JP (1) JPS58224439A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252782A (en) * 1985-08-31 1987-03-07 Fujitsu Ltd Manufacture of sealed type fixed magnetic disc device
US6521286B2 (en) 2001-01-24 2003-02-18 Fuji Electric Co., Ltd. Method for manufacturing a magnetic recording medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156602A (en) * 1974-11-13 1976-05-18 Fujitsu Ltd BANITSUSHUSOCHI
JPS56130836A (en) * 1980-03-14 1981-10-14 Fujitsu Ltd Manufacture for magnetic recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156602A (en) * 1974-11-13 1976-05-18 Fujitsu Ltd BANITSUSHUSOCHI
JPS56130836A (en) * 1980-03-14 1981-10-14 Fujitsu Ltd Manufacture for magnetic recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252782A (en) * 1985-08-31 1987-03-07 Fujitsu Ltd Manufacture of sealed type fixed magnetic disc device
JPH0430674B2 (en) * 1985-08-31 1992-05-22
US6521286B2 (en) 2001-01-24 2003-02-18 Fuji Electric Co., Ltd. Method for manufacturing a magnetic recording medium

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