JPH0246582A - Disk spacer - Google Patents
Disk spacerInfo
- Publication number
- JPH0246582A JPH0246582A JP19672288A JP19672288A JPH0246582A JP H0246582 A JPH0246582 A JP H0246582A JP 19672288 A JP19672288 A JP 19672288A JP 19672288 A JP19672288 A JP 19672288A JP H0246582 A JPH0246582 A JP H0246582A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- disk spacer
- spacer
- magnetic
- spindle hub
- 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
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 29
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000990 Ni alloy Inorganic materials 0.000 claims abstract description 6
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 6
- 239000011737 fluorine Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 239000010702 perfluoropolyether Substances 0.000 abstract description 2
- 238000007747 plating Methods 0.000 abstract description 2
- 238000006467 substitution reaction Methods 0.000 abstract description 2
- 239000011701 zinc Substances 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- 238000007598 dipping method Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、磁気ディスク装置用ディスクスペーサ、特に
ディスクスペーサの表面処理構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk spacer for a magnetic disk device, and particularly to a surface treatment structure of a disk spacer.
従来のディスクスペーサは、第３図に示すような構造と
なっている。すなわち、アルミニウム合金材を第３図に
示す形状に研磨・加工後、汚染物除去のための洗浄を行
なうのみであり、アルミニウム合金の表面が露出してい
る構造となっている。A conventional disk spacer has a structure as shown in FIG. That is, after polishing and processing the aluminum alloy material into the shape shown in FIG. 3, cleaning is only performed to remove contaminants, and the surface of the aluminum alloy is exposed.
上述した従来のディスクスペーサの構造では、合金表面
の不安定酸化物が存在する。また摩擦係数が大きいため
に、ディスクスペーサの組込みおよび取外しの際にスピ
ンドルハブの外周部とディスクスペーサの内周部との接
触により、磨耗粉が多く発生する。In the conventional disk spacer structure described above, unstable oxides exist on the alloy surface. Furthermore, since the coefficient of friction is large, a large amount of abrasion powder is generated due to contact between the outer circumference of the spindle hub and the inner circumference of the disk spacer when the disk spacer is installed and removed.
組込みおよび取外し過程で発生した磨耗粉が、磁気ディ
スクの表面と磁気ヘッドのコア間に付着し、磁気ディス
ク表面と磁気ヘッドのコア表面にスクラッチを発生させ
、磁気ヘッドのコアが磁気ディスク表面にダメージを与
え、いわゆるヘッドクラッシュとなる。Abrasion powder generated during the installation and removal process adheres between the surface of the magnetic disk and the core of the magnetic head, causing scratches on the surface of the magnetic disk and the core surface of the magnetic head, and the core of the magnetic head damages the surface of the magnetic disk. This results in what is called a head crash.
本発明によれば、回転可能なスピンドルシャフトと同軸
なスピンドルハブ上に複数枚の磁気ディスク板を一定の
間隔をもどせて装着するリング形状をもつディスクスペ
ーサにおいて、前記ディスクスペーサの主材がアルミニ
ウム合金であり、かつその表面にニッケル合金被膜とフ
ッ素系オイルが形成されていることを特徴とするディス
クスペーサが得られる。According to the present invention, in a ring-shaped disk spacer in which a plurality of magnetic disk plates are mounted at regular intervals on a spindle hub coaxial with a rotatable spindle shaft, the main material of the disk spacer is aluminum alloy. A disk spacer is obtained, which is characterized in that it has a nickel alloy coating and a fluorine-based oil formed on its surface.
次に、本発明の一実施例を示した図面を参照して、本発
明をより詳細に説明する。Next, the present invention will be described in more detail with reference to the drawings showing one embodiment of the present invention.
第１図を参照すると、本発明の一実施例においては、ア
ルミニウム合金１１を研磨等の機械加工により第１図の
形状に作成する。次に、アルミニウム合金１１の表面に
亜鉛置換の前処理を行ない、無電解ニッケルめっきを２
μｍの厚さに形成する。これがニッケル合金被膜１２と
なる。更に、パーフロロポリエーテルのフレオン溶液中
に浸漬るすることにより、フッ素系オイル１３が形成さ
れる。Referring to FIG. 1, in one embodiment of the present invention, an aluminum alloy 11 is formed into the shape shown in FIG. 1 by machining such as polishing. Next, the surface of the aluminum alloy 11 is pretreated with zinc substitution, and electroless nickel plating is applied to the surface of the aluminum alloy 11.
Formed to a thickness of μm. This becomes the nickel alloy coating 12. Furthermore, a fluorinated oil 13 is formed by immersing the perfluoropolyether in a Freon solution.
上記のとおり作成されたディスクスペーサは、第２図に
示された構成により用いられる。スピンドルハフ２１に
磁気ディスク板２３か挿入され、次にディスクスペーサ
２２が挿入されることにより、複数枚の磁気ディスク板
２３とディスクスペーサ２２とが交互に積層される。デ
ィスクスペーサ２２をスピンドルハブ２１に挿入すれば
、スピンドルハブ２１の外周部とディスクスペーサ２２
の内周部との摩擦係数は小さくなり、接触による磨耗粉
を極微量にできる。The disk spacer produced as described above is used in the configuration shown in FIG. By inserting the magnetic disk plate 23 into the spindle huff 21 and then inserting the disk spacer 22, a plurality of magnetic disk plates 23 and disk spacers 22 are alternately stacked. When the disk spacer 22 is inserted into the spindle hub 21, the outer circumference of the spindle hub 21 and the disk spacer 22
The coefficient of friction with the inner periphery of the material is small, and the amount of abrasion powder caused by contact can be minimized.
以上説明したように、本発明によれば、アルミニウム合
金を主材としたディスクスペーサの表面に、ニッケル合
金被膜とフッ素系オイルを形成することにより、ディス
クスペーサの組込みや取外し時にスピンドルハブの外周
部とディスクスペーサの内周部との接触時の摩擦係数の
減少させる。As explained above, according to the present invention, by forming a nickel alloy film and fluorine-based oil on the surface of a disk spacer mainly made of aluminum alloy, the outer periphery of the spindle hub can be removed when the disk spacer is installed or removed. Reduces the coefficient of friction between the disc spacer and the inner periphery of the disc spacer.
更に、接触による磨耗粉の発生も極微量になるため、磁
気ディスク表面および磁気へラドコア表面のスクラッチ
あるいは磁気へラドコアの磁気ディスク表面へのクラッ
シュを防止する効果がある。Further, since the amount of abrasion powder generated by contact becomes extremely small, it is effective to prevent scratches on the surface of the magnetic disk and the surface of the magnetic helad core, or crashes of the magnetic helad core against the surface of the magnetic disk.
第１図（Ａ）、（Ｂ）および（Ｃ）は本発明の一実施例
によるディスクスペーサの上面図、断面図および部分拡
大図、第２図は第１図に示した本実施例の使用例を示す
断面図、第３図（Ａ＞（Ｂ）および（Ｃ）は従来のディ
スクスペーサの上面図、断面図および部分拡大図である
。
１・・・アルミニウム合金、１１・・・アルミニウム合
金、１２・・・ニッケル合金被膜、１３・・・フッ素系
オイル、２１・・・スピンドルハブ、２２・・・ディス
クスペーサ、２３・・・磁気ディスク板。
代理人 弁理士 内 原 晋FIGS. 1(A), (B), and (C) are a top view, a sectional view, and a partially enlarged view of a disk spacer according to an embodiment of the present invention, and FIG. 2 is a use of this embodiment shown in FIG. 1. A sectional view showing an example, and FIG. 3 (A>(B) and (C) are a top view, a sectional view, and a partially enlarged view of a conventional disk spacer. 1... Aluminum alloy, 11... Aluminum alloy , 12... Nickel alloy coating, 13... Fluorine oil, 21... Spindle hub, 22... Disk spacer, 23... Magnetic disk plate. Agent: Susumu Uchihara, patent attorney
Claims (1)
上に複数枚の磁気ディスク板を一定の間隔をもとせて装
着するリング形状をもつディスクスペーサにおいて、前
記ディスクスペーサの主材がアルミニウム合金であり、
かつその表面にニッケル合金被膜とフッ素系オイルが形
成されていることを特徴とするディスクスペーサ。In a ring-shaped disk spacer in which a plurality of magnetic disk plates are mounted at regular intervals on a spindle hub coaxial with a rotatable spindle shaft, the main material of the disk spacer is an aluminum alloy,
A disk spacer characterized in that a nickel alloy coating and a fluorine-based oil are formed on the surface of the disk spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19672288A JPH0246582A (en) | 1988-08-05 | 1988-08-05 | Disk spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19672288A JPH0246582A (en) | 1988-08-05 | 1988-08-05 | Disk spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246582A true JPH0246582A (en) | 1990-02-15 |
Family
ID=16362508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19672288A Pending JPH0246582A (en) | 1988-08-05 | 1988-08-05 | Disk spacer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6917496B2 (en) | 2001-09-04 | 2005-07-12 | Hitachi Global Storage Technologies Netherlands B.V. | Spacer ring for disk drive spindle with load/unload feature, latch feature, and tribological overcoat |
| WO2015060257A1 (en) | 2013-10-21 | 2015-04-30 | 株式会社Adeka | Method for producing stabilized polymer |
-
1988
- 1988-08-05 JP JP19672288A patent/JPH0246582A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6917496B2 (en) | 2001-09-04 | 2005-07-12 | Hitachi Global Storage Technologies Netherlands B.V. | Spacer ring for disk drive spindle with load/unload feature, latch feature, and tribological overcoat |
| US7012788B2 (en) | 2001-09-04 | 2006-03-14 | Hitachi Global Storage Technologies Netherlands B.V. | Spacer ring for disk drive spindle with load/unload feature, latch feature, and tribological overcoat |
| WO2015060257A1 (en) | 2013-10-21 | 2015-04-30 | 株式会社Adeka | Method for producing stabilized polymer |
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