JPH01306576A - Formation of groove for generating dynamic pressure in shaft body - Google Patents
Formation of groove for generating dynamic pressure in shaft bodyInfo
- Publication number
- JPH01306576A JPH01306576A JP13471088A JP13471088A JPH01306576A JP H01306576 A JPH01306576 A JP H01306576A JP 13471088 A JP13471088 A JP 13471088A JP 13471088 A JP13471088 A JP 13471088A JP H01306576 A JPH01306576 A JP H01306576A
- Authority
- JP
- Japan
- Prior art keywords
- shaft body
- transfer
- shaft
- dynamic pressure
- generating dynamic
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 238000005530 etching Methods 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 claims description 29
- 238000005260 corrosion Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上のｆす用分野〉
この発明は動圧流体軸受の軸体に動圧発生用の溝を形成
する方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Field> The present invention relates to a method for forming grooves for generating dynamic pressure in the shaft of a hydrodynamic bearing.
〈従来の技術〉
従来、この種の軸体に動圧発生用の溝を形成する方法と
しては、特開昭５７−４５０８９号公報が公知である。<Prior Art> Japanese Patent Laid-Open No. 57-45089 has been known as a method for forming grooves for generating dynamic pressure in this type of shaft body.
この方法は、転写パターンを有する印刷版に接触してい
る軸体を一回転させて軸体の被腐負部以外の箇所に耐食
性のインキを塗る工程と、上記被腐食部を腐食液で腐食
して動圧発生用の溝に形成する工程と、上記軸体から耐
食性のインキを除去する工程とを経て軸体に動圧発生用
の溝を形成するようにしている。This method involves the steps of rotating the shaft that is in contact with the printing plate with the transfer pattern once and applying corrosion-resistant ink to the parts of the shaft other than the corroded parts, and corroding the corroded parts with a corrosive liquid. The grooves for generating dynamic pressure are formed in the shaft through a step of forming grooves for generating dynamic pressure, and a step of removing corrosion-resistant ink from the shaft.
〈発明か解決しようとする課題〉
しかしながら、上記従来の軸体の動圧発生用の溝を形成
する方法は、印刷機および印刷版を必要とするため、設
備が大がかりになるという問題がある。また、塗布され
た耐食性印刷インキを、腐食工程へ進む曲に、乾かさな
ければならないという問題もある。さらに重大なことに
は、印刷版に接触している軸体を一回転させて軸体に耐
食性インキを印刷するようにしているため、ずヘリ等が
生じることにより印刷の開始点と印刷の終了点との印刷
パターンを一致させることが困難であり、しばしば、印
刷パターンのずれ１重なりおよびにじみが生しろという
問題らある。このことは、その後の腐食により形成され
ろ溝形状の変形やピッチのずれを引き起こしてしまう。<Problems to be Solved by the Invention> However, the conventional method of forming grooves for generating dynamic pressure in the shaft body requires a printing machine and a printing plate, so there is a problem in that the equipment becomes large-scale. There is also the problem that the applied corrosion-resistant printing ink must be allowed to dry before proceeding to the corrosion process. More importantly, since the shaft that is in contact with the printing plate is rotated once to print the corrosion-resistant ink on the shaft, it is possible to create curls between the starting point and the end of printing. It is difficult to match the printed pattern with the dots, and there are often problems with overlapping printed patterns and bleeding. This causes deformation of the groove shape and deviation of the pitch formed by subsequent corrosion.
そこで、この発明の目的は、印刷機や印刷版を必要と什
す、また印刷インキを乾かしたりずろ必要がなく、容易
に軸体に正確な形状の動圧発生用の溝を形成することの
できる軸体に動圧発生用の溝を形成する方法を提供する
ことにある。Therefore, an object of the present invention is to easily form precisely shaped grooves for generating dynamic pressure on a shaft without requiring a printing machine or a printing plate, or drying or shifting printing ink. It is an object of the present invention to provide a method for forming grooves for generating dynamic pressure in a shaft body that can be manufactured.
く課題を解決するための手段〉
上記目的を達成するため、この発明の軸体に動圧発生用
の溝を形成ずろ方法は、粘着性を有する耐食性転写パタ
ーンの付いた転写用テープを軸体に巻き付け、次いで、
上記転写パターンを上記軸体に転写して上記転写用テー
プを上記軸体から取り除き、次いで、上記軸体を腐食し
て、上記転写パターンを除いた形状の苛を形成すること
を特徴としている。Means for Solving the Problems> In order to achieve the above object, the method of forming grooves for generating dynamic pressure on a shaft of the present invention is to apply a transfer tape with an adhesive and corrosion-resistant transfer pattern to a shaft. and then
The method is characterized in that the transfer pattern is transferred to the shaft, the transfer tape is removed from the shaft, and then the shaft is corroded to form a plate having a shape excluding the transfer pattern.
〈実施例〉 以下、この発明を図示の実施例により詳細に説明する。<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.
第１図は本発明の軸体に動圧発生用の荷を形成する方法
の一実施例に用いる粘着性を有する耐食性転写パターン
の付いた転写用テープを示しており、ｌは片面（第１図
の紙面の裏側）に、−旦張り付けてら剥離可能な適当な
粘着力の粘着面を有する矩形の転写用テープである。こ
の転写用テープｌは温度が変化したり引張られたりして
も伸び縮みか少ない材料でできており、所定の幅を有す
ると共に所定の長さを有１７ている。この転写用テープ
１の長さは第２図に示すように、外周が円筒部２ａで形
成され、その外周面に動圧発生用の溝が形成される軸体
２の円周の長さに等しく設けられている。この転写用テ
ープｌの上記粘着面側には、第１図に示すように、その
幅方向の中心にその中心を一致させて、上記長さ方向っ
まり長辺方向に」二記長さの１／６のピッチ間隔Ｐ、Ｐ
、・・・を有する６つのヘリンボーン形の耐食性転写パ
ターン３ａ。FIG. 1 shows a transfer tape with an adhesive, corrosion-resistant transfer pattern used in an embodiment of the method of forming a load for generating dynamic pressure on a shaft body of the present invention, l is one side (the first This is a rectangular transfer tape that has an adhesive surface with an appropriate adhesive force that can be peeled off once it is pasted on the back side of the paper in the figure. This transfer tape 1 is made of a material that does not expand or contract even when the temperature changes or is stretched, and has a predetermined width and a predetermined length 17. As shown in FIG. 2, the length of this transfer tape 1 is equal to the length of the circumference of a shaft body 2 whose outer circumference is formed by a cylindrical portion 2a and a groove for generating dynamic pressure is formed on the outer circumferential surface. are set equally. As shown in FIG. 1, on the adhesive surface side of the transfer tape l, the center is aligned with the center of the width direction, and the length of 1/6 pitch interval P, P
, . . . six herringbone-shaped corrosion-resistant transfer patterns 3a.
３ｂ、・・・、３ｆを設けている。3b, . . . , 3f are provided.
両端の耐食性転写パターン３ａ、：Ｈは、上記転写用テ
ープ１が第２図に示すように、軸体２の円筒部２ａに周
方向に巻き付けられたとき、同じく上記ピッチ間隔Ｐを
有するように夫々、上記転写用テープＩ上に所定の位置
に配置されている。上記耐食性転写パターン３ ａ、３
ｂ、・・・、３ｆは所定の厚みを有しており、同じく
紙面の裏側の而に、」ユ記転写用テープ■の粘着力より
も強い粘着力を有し、後に述べるエツチングに耐えるこ
とのできろ粘着面を有している。これにより、この耐食
性転写パターン３ ａ、 ３ ｂ、・・・、３ｆを存す
る転写用テープ１は、−旦粘着した後、剥がすことによ
り、上記耐食性転写パターン３ ａ、 ３ ｂ、・・・
、３「を被接着物である軸体２の円筒部２ａに、そのピ
ッチ間隔Ｐや形状をくずすことなく残すことができるよ
うになっている。The corrosion-resistant transfer patterns 3a, :H at both ends are arranged so that when the transfer tape 1 is wound around the cylindrical portion 2a of the shaft body 2 in the circumferential direction as shown in FIG. Each of them is arranged at a predetermined position on the transfer tape I. The above corrosion-resistant transfer pattern 3 a, 3
b, . It has a sticky surface. As a result, the transfer tape 1 having the corrosion-resistant transfer patterns 3 a, 3 b, . . . , 3 f is adhered once and then peeled off.
, 3'' can be left on the cylindrical portion 2a of the shaft body 2, which is the object to be adhered, without changing its pitch interval P or shape.
上記外周に円筒部２ａを何ケる軸体２に動圧発生用の溝
を形成するには、まず第２図に示すようにヘリンボーン
形の耐食性転写パターン３ ａ、 ３ ｂ。In order to form grooves for generating dynamic pressure in the shaft body 2 having the cylindrical portion 2a on its outer periphery, first, as shown in FIG. 2, herringbone-shaped corrosion-resistant transfer patterns 3a, 3b are formed.
・・・、３ｆを有する上記転写用テープ１を、ｌ二足軸
体２の軸方向所定の位置に周方向に正確に張り付ける。. . , the transfer tape 1 having a diameter of 3f is accurately applied in the circumferential direction to a predetermined position in the axial direction of the bipedal shaft body 2.
次いで、上記転写用テープ１を上記軸体２から剥がす。Next, the transfer tape 1 is peeled off from the shaft 2.
すると、第３図に示すように、軸体２には、６つのへリ
ンボーン形の耐食性転写パターン３ａ、：３ｂ、・・、
３ｒが、周方向等間隔に＋Ｅ（ｉ（Ｍに、かつ、その形
をくずすこと無く残される。次いで、この軸体２をエツ
チングにより腐食を施す。ずろと、−上記６つのへリン
ボーン形の転写パターン３ａ。Then, as shown in FIG. 3, six herringbone-shaped corrosion-resistant transfer patterns 3a, 3b, . . . are formed on the shaft body 2.
3r are left on +E(i(M) at equal intervals in the circumferential direction without changing their shape.Next, this shaft body 2 is corroded by etching. Transfer pattern 3a.
３ｂ、・・・、３ｒが、耐食性であり、かつ、耐食性の
粘着面によりエツチング液にさらされても剥がれること
無く上記軸体２に張り付いているため、第３図に示すよ
うに上記軸体２には、上記６つのヘリンボーン形の転写
パターン３ ａ、 ３ ｂ、・・・、３ｆを除いた正確
な形状の所定の深さの動圧発生用の溝４が形成される。3b, . . . , 3r are corrosion resistant and stick to the shaft 2 without peeling off even when exposed to the etching solution due to the corrosion resistant adhesive surface. In the body 2, a groove 4 for generating dynamic pressure is formed with an accurate shape and a predetermined depth except for the six herringbone-shaped transfer patterns 3a, 3b, . . . , 3f.
上記転写パターン３ ａ、 ３ ｂ、・・・、３「の残
っている部分は腐食されずに残る。最後に、上記転写パ
ターン３ ａ、 ３ ｂ、・・・、３ｆを、上記軸体２
には影響を与えることのない溶剤等により除去し、軸体
への動圧発生用の溝４の形成が完了する。The remaining portions of the transfer patterns 3 a, 3 b, ..., 3'' remain uncorroded. Finally, the transfer patterns 3 a, 3 b, ..., 3 f are transferred to the shaft body 2.
The grooves 4 for generating dynamic pressure in the shaft body are removed by using a solvent or the like that does not affect the structure.
このように、耐食性の転写パターン３ ａ、３ ｂ、・
・。In this way, the corrosion-resistant transfer patterns 3 a, 3 b, .
・.
３ｒの付いた転写用テープｌを、外周が円筒部２ａであ
る軸体２に周方向に、その位置かすれることなく正確に
張り付け、次いで、上記転写用テープｌを剥がしてＪ二
足耐食性転写パターン３ ａ、 ３ ｂ。Apply the transfer tape l marked with 3r in the circumferential direction to the shaft body 2 whose outer periphery is the cylindrical part 2a, without wiping out the position, and then peel off the transfer tape l to form the J two-legged corrosion-resistant transfer pattern. 3a, 3b.
・・、３ｒを上記軸体２の円筒部２ａに転写し、次いで
、上記軸体２にエツチングにより腐食を施して、上記耐
食性転写パターン３ ａ、 ３ ｂ、・・１３ｒ形状を
除いた形状に応じた動圧発生用溝４を形成し、最後に上
記耐食性転写パターン３ａ、３Ａ）、・、３ｆを除去し
て、動圧発生用の溝４の形成を完了するので、軸体２に
、動圧発生用の７７４４を、印刷機や印刷版を用いたり
すること無く、容易に正確な形状に、形成することがで
きると共に、印刷する場合にしばしば必要な、パターン
の乾燥工程を無くすることができる。..., 3r is transferred to the cylindrical portion 2a of the shaft 2, and then the shaft 2 is corroded by etching to form a shape excluding the corrosion resistant transfer pattern 3a, 3b, . . 13r shape. The corresponding grooves 4 for generating dynamic pressure are formed, and finally the corrosion-resistant transfer patterns 3a, 3A), . . . 3f are removed to complete the formation of the grooves 4 for generating dynamic pressure. To easily form a 7744 for generating dynamic pressure into an accurate shape without using a printing machine or a printing plate, and to eliminate a pattern drying process often required when printing. I can do it.
上記実施例においては、転写用テープｌとして粘着性の
テープを用いたが、少なくとし転写パターン３ ａ、
３ ｂ、・・・、３ｒの軸体２への転写画か粘着性を何
しておればよく転写用テープｌ自体に粘着性がなくても
よい。In the above embodiment, an adhesive tape was used as the transfer tape l, but the transfer pattern 3a,
3b, . . . , 3r onto the shaft body 2, the transfer tape 1 itself does not need to have any adhesiveness as long as it has any adhesiveness.
また、上記転写用テープｌは、転写パターン３ａ。Further, the transfer tape 1 has a transfer pattern 3a.
３ｂ、・・・、３「を軸体２へ転写したのち剥がしてい
るが、軸体２に張りつけたまま溶剤に浸清し転写用テー
プｌのみを溶解して取り除いてもよい。3b, . . . , 3'' are transferred to the shaft body 2 and then peeled off, but it is also possible to immerse the tape in a solvent while it is attached to the shaft body 2 to dissolve only the transfer tape l and remove it.
また、上記実施例では、転写用テープ１の合せ而か直線
状になっているか、この合せ面を転写パターン３ ａ、
３ ｂ、・・・、３ｆと同様に「＜」の字形としても
よい。それにより、転写パターン３ ａ、 ３ ｂ、・
・・。In addition, in the above embodiment, whether the mating surface of the transfer tape 1 is linear or the mating surface is used as the transfer pattern 3a,
3b, . . . , 3f may also be in the form of a “<” character. As a result, the transfer patterns 3 a, 3 b, .
....
３ｒのビッヂを小さくした場合に継ぎ目のない転写パタ
ーン３ ａ、 ３ ｂ、・・・、３ｆが得られる。When the bit 3r is made small, seamless transfer patterns 3a, 3b, . . . , 3f can be obtained.
また、上記実施例では、ヘリンボーン形の６つの耐食性
転写パターン３ ａ、 ３ ｂ、・・・、３ｒの付いた
転写用テープｌを用いて、上記転写パターンを除いた形
状の動圧形成用の溝を形成するようにしたが、逆に６つ
のへリンボーン形を除いた形状の耐食性の転写パターン
（第１図中「５」で示す）の付いた転写用テープを用い
て、上記６つのへリンボーン形（３ａ、 ３ ｂ、・・
・、３ｆ）の動圧発生用溝を形成するようにしてら良い
。また、耐食性転写パターン３ ａ、 ３ ｂ。In addition, in the above embodiment, a transfer tape L having six herringbone-shaped corrosion-resistant transfer patterns 3 a, 3 b, . Instead, we used a transfer tape with a corrosion-resistant transfer pattern (indicated by "5" in Figure 1) in a shape other than the six herringbone shapes to form grooves in the six herringbone shapes. Linkbone type (3a, 3b,...
., 3f) may be formed. Moreover, corrosion-resistant transfer patterns 3a and 3b.
・・、３「は、ヘリンポーン形に限らないのは言うまで
もない。..., 3 'It goes without saying that it is not limited to the herringbone shape.
また、上記軸体２は外周に円筒面２ａを有していればよ
く円柱形に限らないのは言うまでもない。Further, it goes without saying that the shaft body 2 is not limited to a cylindrical shape as long as it has a cylindrical surface 2a on its outer periphery.
また上記転写用テープｌには、軸体２の円周の長さに等
しい長さを有する矩形のものを用いたが、上記転写用テ
ープＩを長さ方向に接続しｆこような、連続の転写用テ
ープを用いてもよい。このとき、上記接続部が、容易に
切断しゃすいように、予め加工されていればさらに好ま
しい。In addition, although a rectangular tape having a length equal to the circumference of the shaft body 2 was used as the transfer tape L, the transfer tape I was connected in the length direction to form a continuous Transfer tape may also be used. At this time, it is more preferable that the connecting portion is processed in advance so that it can be easily cut.
〈発明の効果〉
以上より明らかなように、この発明の軸体に動圧発生用
の溝を形成する方法は、粘着性を有する耐食性転写パタ
ーンの付いた転写用テープを軸体に巻き付け、次いで、
上記転写パターンを上記軸体に転写して上記転写用テー
プを上記軸体から取り除き、次いで、上記軸体を腐食し
て、上記転写パターンを除いた形状に応じた溝を形成４
−るようにしているので、転写用テープを軸体に周方向
に巻き付けて取り除くだけで耐食性パターンを軸体に転
写することができ、印刷機や印刷版を必要としない。ま
た従来の印刷による方法が必要とした耐食性印刷インキ
の乾燥工程を必要としない。さらに印刷によらないため
、従来のように軸体と印刷版とを接触させた状態で一回
転させるときにしばしば起こるずベリ等に起因するパタ
ーンのピッチずれや重なり、にじみを生じることかなく
、したかって、容易に正確な形状の動圧発生用の溝を軸
体に形成することかできる。<Effects of the Invention> As is clear from the above, the method of forming grooves for generating dynamic pressure on the shaft of the present invention involves wrapping a transfer tape with an adhesive, corrosion-resistant transfer pattern around the shaft, and then ,
The transfer pattern is transferred to the shaft, the transfer tape is removed from the shaft, and the shaft is then corroded to form a groove corresponding to the shape excluding the transfer pattern.
Therefore, the corrosion-resistant pattern can be transferred to the shaft by simply winding the transfer tape around the shaft in the circumferential direction and removing it, and no printing machine or printing plate is required. Furthermore, there is no need for a drying process for corrosion-resistant printing ink, which is required in conventional printing methods. Furthermore, since it does not depend on printing, there is no pattern pitch shift, overlapping, or smearing caused by unevenness, which often occurs when the shaft body and printing plate are rotated once while in contact with each other, as in the past. Therefore, it is possible to easily form accurately shaped grooves for generating dynamic pressure in the shaft body.
第１図は本発明の軸体に動圧発生用の溝を形成する方法
の一実施例に用いる耐食性転写パターンの付いた転写用
テープ、第２図は第１図の転写用テープを軸体に巻き付
けた状態の斜視図、第３図は第２図の転写用テープを剥
がした後腐食を行った状態の図である。
１・・・転写用テープ、２・軸体、
３ａ〜３ｒ・・・耐食性転写パターン、４・・動圧発生
用の溝。Figure 1 shows a transfer tape with a corrosion-resistant transfer pattern used in an embodiment of the method of forming grooves for generating dynamic pressure on a shaft according to the present invention, and Figure 2 shows the transfer tape of Figure 1 attached to a shaft. FIG. 3 is a perspective view of the transfer tape shown in FIG. 2 after it has been peeled off and then corroded. DESCRIPTION OF SYMBOLS 1... Transfer tape, 2... Shaft body, 3a-3r... Corrosion-resistant transfer pattern, 4... Groove for dynamic pressure generation.
Claims (1)
用テープを軸体に巻き付け、 次いで、上記転写パターンを上記軸体に転写して上記転
写用テープを上記軸体から取り除き、次いで、上記軸体
を腐食して、上記転写パターンを除いた形状の溝を形成
することを特徴とする軸体に動圧発生用の溝を形成する
方法。(1) Wrap a transfer tape with an adhesive corrosion-resistant transfer pattern around the shaft, then transfer the transfer pattern to the shaft, remove the transfer tape from the shaft, and then A method for forming a groove for generating dynamic pressure in a shaft body, the method comprising etching the body to form a groove in a shape excluding the transfer pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134710A JP2758170B2 (en) | 1988-06-01 | 1988-06-01 | Method of forming grooves for generating dynamic pressure in shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134710A JP2758170B2 (en) | 1988-06-01 | 1988-06-01 | Method of forming grooves for generating dynamic pressure in shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01306576A true JPH01306576A (en) | 1989-12-11 |
| JP2758170B2 JP2758170B2 (en) | 1998-05-28 |
Family
ID=15134788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63134710A Expired - Lifetime JP2758170B2 (en) | 1988-06-01 | 1988-06-01 | Method of forming grooves for generating dynamic pressure in shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2758170B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234796A (en) * | 1988-07-25 | 1990-02-05 | Ibiden Co Ltd | Dynamic pressure generating groove forming sheet and formation of dynamic pressure generating groove using the sheet |
| WO1991016473A1 (en) * | 1990-04-25 | 1991-10-31 | Kabushiki Kaisha Komatsu Seisakusho | Method of processing rod |
| US5306525A (en) * | 1990-04-25 | 1994-04-26 | Kabushiki Kaisha Komatsu Seisakusho | Method of processing rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5192268A (en) * | 1975-02-08 | 1976-08-12 | ||
| JPS52148305A (en) * | 1976-06-04 | 1977-12-09 | Tanazawa Hakkosha Kk | Etching method |
| JPS5735682A (en) * | 1980-08-08 | 1982-02-26 | Nippon Seiko Kk | Formation of groove for generating dynamic pressure |
| JPS5745089A (en) * | 1980-09-01 | 1982-03-13 | Nippon Seiko Kk | Formation of dynamic pressure-generating groove in shaft |
| JPS62152561A (en) * | 1985-12-27 | 1987-07-07 | Asahi Chem Ind Co Ltd | Mask for surface processing |
-
1988
- 1988-06-01 JP JP63134710A patent/JP2758170B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5192268A (en) * | 1975-02-08 | 1976-08-12 | ||
| JPS52148305A (en) * | 1976-06-04 | 1977-12-09 | Tanazawa Hakkosha Kk | Etching method |
| JPS5735682A (en) * | 1980-08-08 | 1982-02-26 | Nippon Seiko Kk | Formation of groove for generating dynamic pressure |
| JPS5745089A (en) * | 1980-09-01 | 1982-03-13 | Nippon Seiko Kk | Formation of dynamic pressure-generating groove in shaft |
| JPS62152561A (en) * | 1985-12-27 | 1987-07-07 | Asahi Chem Ind Co Ltd | Mask for surface processing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234796A (en) * | 1988-07-25 | 1990-02-05 | Ibiden Co Ltd | Dynamic pressure generating groove forming sheet and formation of dynamic pressure generating groove using the sheet |
| WO1991016473A1 (en) * | 1990-04-25 | 1991-10-31 | Kabushiki Kaisha Komatsu Seisakusho | Method of processing rod |
| US5306525A (en) * | 1990-04-25 | 1994-04-26 | Kabushiki Kaisha Komatsu Seisakusho | Method of processing rod |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2758170B2 (en) | 1998-05-28 |
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