JPH0752046A - Shot working nozzle for inner face of tube - Google Patents
Shot working nozzle for inner face of tubeInfo
- Publication number
- JPH0752046A JPH0752046A JP32264193A JP32264193A JPH0752046A JP H0752046 A JPH0752046 A JP H0752046A JP 32264193 A JP32264193 A JP 32264193A JP 32264193 A JP32264193 A JP 32264193A JP H0752046 A JPH0752046 A JP H0752046A
- Authority
- JP
- Japan
- Prior art keywords
- shot
- nozzle
- pipe material
- processing
- grain
- 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.)
- Withdrawn
Links
Landscapes
- Nozzles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、管材の内面を硬化し
たり研掃したりするためショットピーニングやショット
ブラストをするための、ショット加工用ノズルに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shot processing nozzle for shot peening or shot blasting for hardening or polishing the inner surface of a pipe material.
【０００２】[0002]
【従来の技術】管材の内面を硬化したり、研掃したりす
るためにショットピーニングやショットブラスト（以
下、ショット加工と総称する）加工を行うときには、従
来次のような方法で行っていた。 （１）図５に示すように、管材２１の内部を移動するタ
イプの円筒形のショット加工用ノズル３２を通して、シ
ョット粒２３を管材内面２１ｂに吹き付ける方法。2. Description of the Related Art Conventionally, shot peening and shot blasting (hereinafter collectively referred to as shot processing) processing for hardening or polishing the inner surface of a pipe material have been carried out by the following method. (1) As shown in FIG. 5, a method of spraying shot particles 23 onto the inner surface 21b of the pipe material through a cylindrical shot processing nozzle 32 of a type that moves inside the pipe material 21.
【０００３】（２）図６に示すように、ショット粒供給
管２４の先端に継手２５を介して接続された円筒形のシ
ョット加工用ノズル４２の先端部が、斜めに傾いた反射
面４２ａと、この反射面４２ａに衝突したショット粒２
３がショット加工用ノズル４２から飛び出すための開口
４２ｂとから構成されているタイプのノズルを使用し、
このノズル４２を、前記ショット粒供給管２４の管軸の
回りに回転させながら、管材２１内を前進させ、ショッ
ト粒２３を万遍なく管材２１の内面２１ｂに吹き付ける
方法。(2) As shown in FIG. 6, the tip portion of a cylindrical shot processing nozzle 42 connected to the tip of the shot grain supply pipe 24 through a joint 25 has a reflecting surface 42a which is inclined. , Shot particles 2 that collide with this reflecting surface 42a
3 uses an opening 42b for ejecting from the shot processing nozzle 42,
A method of advancing the inside of the pipe material 21 while rotating the nozzle 42 around the pipe axis of the shot grain supply pipe 24 so that the shot particles 23 are evenly sprayed onto the inner surface 21b of the pipe material 21.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
た従来の管材内面のショット加工方法には、次のような
問題点があった。 （１）円筒形のショット加工用ノズルによる方法 ショット粒の吹き付けられる方向が管壁に対して、平行
に近い方向となるので、ショット粒の保有する運動エネ
ルギを十分に利用したショット加工とはなっていない。However, the above-described conventional shot processing method for the inner surface of the pipe material has the following problems. (1) Method using a cylindrical shot machining nozzle Since the direction in which the shot grains are sprayed is almost parallel to the tube wall, the shot machining is made full use of the kinetic energy of the shot grains. Not not.
【０００５】（２）反射面を有するショット加工用ノズ
ルによる方法 管材の全内面にショット加工を行うためには、ショット
加工用ノズルともどもショット粒供給管を回転させるか
管材を回転させる必要がある。いずれの場合も装置が複
雑になり、特にノズルを回転させる方式では、ショット
粒の供給系に問題が発生しやすい。また、ショット粒の
当たる軌跡がスパイラル状になるため、ノズルの進行速
度を速くしすぎると、ショット粒の当たらない部分がで
てくる。(2) Method using shot processing nozzle having a reflecting surface In order to perform shot processing on the entire inner surface of the pipe material, it is necessary to rotate the shot grain supply pipe or the pipe material together with the shot processing nozzle. In either case, the apparatus becomes complicated, and particularly in the method of rotating the nozzle, a problem easily occurs in the shot grain supply system. Moreover, since the trajectory of the shot particles hits spiral, if the advancing speed of the nozzle is made too fast, some parts of the shot particles do not hit.
【０００６】この発明は、上述したような従来技術の問
題点を解消するためになされたものであり、管材内面の
ショット加工を行う際、ショット粒が場所に偏らず均一
な衝突力で管壁に当り、かつショット粒の保有する運動
エネルギを十分に利用でき、さらにはショット加工を安
定して行うことのできる管材内面ショット加工用ノズル
を提供することを目的としている。The present invention has been made in order to solve the above-mentioned problems of the prior art, and when performing shot processing on the inner surface of the pipe material, the shot particles are not localized in the place and the pipe wall has a uniform collision force. It is an object of the present invention to provide a nozzle for shot processing on the inner surface of a pipe material, which is capable of sufficiently utilizing the kinetic energy possessed by the shot particles, and which can perform shot processing stably.
【０００７】[0007]
【課題を解決するための手段】第一の発明は、後端がシ
ョット粒供給管に接続された円筒状の基体；軸芯が該基
体の軸芯上に位置し、該基体の内部に固定された支持部
材；該支持部材を前記基体の内部に固定する固定部材；
前記支持部材の先端部に頭頂部をショット粒の流れの上
流方向に向け固定され、ショット粒の流れの下流方向に
向けてラッパ状に拡がる曲面を有するショット粒反射ブ
ロック；前記基体の内面と前記支持部材の外面との間の
ショット粒流路；前記基体先端部と前記ショット粒反射
ブロックとの間のショット粒流路；を備えることを特徴
とする管材内面ショット加工用ノズル。According to a first aspect of the present invention, there is provided a cylindrical base body having a rear end connected to a shot grain supply pipe; the shaft center is located on the shaft center of the base body, and is fixed inside the base body. A supporting member; a fixing member for fixing the supporting member inside the base;
A shot grain reflection block having a top portion fixed to the tip end of the support member in the upstream direction of the flow of shot grains and having a curved surface that spreads in a trumpet shape toward the downstream direction of the flow of shot grains; A nozzle for shot processing on the inner surface of a pipe material, comprising: a shot grain passage between the outer surface of a support member and a shot grain passage between the tip of the base body and the shot grain reflection block.
【０００８】また、第二の発明は前記基体の内径が後端
側で大きく、先端側にむかって減少し、最少径となり、
更に先端側に向って増大する；前記支持部材を前記基体
の内部に固定する固定部材が基体の後端側の内径が大き
い部分に位置する；ことを特徴とする請求項１に記載の
管材内面ショット加工用ノズル。According to a second aspect of the invention, the inner diameter of the base body is large on the rear end side and decreases toward the front end side to become the minimum diameter,
The inner surface of the pipe material according to claim 1, further increasing toward the front end side; the fixing member for fixing the support member inside the base body is located at a portion having a large inner diameter on the rear end side of the base body. Shot processing nozzle.
【０００９】また、第三の発明は前記支持部材および前
記固定部材の一方及び両方の前記ショット粒の流れに対
して直角方向の断面が前記ショット粒の流れの方向の上
流側に向けて減少する；ことを特徴とする請求項１及び
請求項２に記載の管材内面ショット加工用ノズル。In a third aspect of the invention, the cross section of one or both of the support member and the fixing member in the direction perpendicular to the flow of the shot particles decreases toward the upstream side in the flow direction of the shot particles. A nozzle for inner surface shot processing of a pipe material according to claim 1 or 2,
【００１０】[0010]
【作用】この発明に係る管材内面ショット加工用ノズル
を使用して、管材内面のショット加工を行う時には、シ
ョット粒供給管の先端に接続された管材内面ショット加
工用ノズルを、ショット加工を行う管材の一管端部に配
置し、ショット粒供給管を通してショット粒を管材内面
ショット加工用ノズルに供給する。そして、同時に管材
内面ショット加工用ノズルを、ショット粒供給管ともど
も管材内部を前進させる。管材内面ショット加工用ノズ
ルに供給されたショット粒は、管材内面ショット加工用
ノズルの基体内面と支持部材で形成される空隙を通っ
て、ラッパ状に拡がる曲面を有するショット粒反射ブロ
ックに当たる。When performing the shot processing of the inner surface of the pipe material by using the nozzle for inner surface shot processing of the pipe material according to the present invention, the nozzle for shot processing on the inner surface of the pipe material connected to the tip of the shot grain supply pipe is used to perform the shot processing. The shot grain is supplied to the nozzle for shot processing on the inner surface of the pipe through the shot grain supply pipe. At the same time, the nozzle for shot processing on the inner surface of the pipe material is advanced inside the pipe material together with the shot grain supply pipe. The shot particles supplied to the nozzle for shot processing on the inner surface of the pipe material pass through the void formed by the inner surface of the base body of the nozzle for shot processing on the inner surface of the pipe material and the support member, and hit the shot particle reflection block having a curved surface that spreads like a trumpet.
【００１１】ショット粒反射ブロックに衝突したショッ
ト粒は、衝突面がラッパ状に拡がる曲面であるため、進
路方向が転向され、ショット粒反射ブロックと基体先端
部との間から管壁に向かって投射される。ショット粒反
射ブロックはラッパ状に拡がる曲面を有し、反射方向が
３６０°にわたるため、ショット粒は管材内壁の円周方
向に対して均等に当たる。The shot particles that have collided with the shot particle reflection block have a collision surface which is a curved surface that spreads like a trumpet, so that the course of the shot particles is redirected and projected toward the tube wall from between the shot particle reflection block and the tip of the substrate. To be done. The shot grain reflection block has a curved surface that spreads like a trumpet, and the reflection direction extends over 360 °. Therefore, the shot grains hit the circumferential direction of the inner wall of the pipe material evenly.
【００１２】すなわち、この管材内面ショット加工用ノ
ズルを使用することにより、ショット粒の保有する運動
エネルギが最大に利用できるとともに、均一なショット
加工ができる。さらには、ショット粒供給管を回転させ
る必要もないので、ショット粒供給管が捩じれるような
こともなく、ショット加工作業が安定して行える。That is, by using the nozzle for shot processing on the inner surface of the pipe material, the kinetic energy held by the shot particles can be utilized to the maximum and the uniform shot processing can be performed. Further, since it is not necessary to rotate the shot grain supply pipe, the shot grain supply pipe is not twisted, and the shot processing operation can be stably performed.
【００１３】[0013]
【実施例】本発明の実施例の管材内面ショット加工用ノ
ズルを図１（ａ）〜（ｃ）により説明する。図１（ａ）
はこの管材内面ショット加工用ノズルの縦断面図、図１
（ｂ）は図１（ａ）のＡ−Ａ矢視図、図１（ｃ）は図１
（ａ）のＢ−Ｂ矢視図である。この管材内面ショット加
工用ノズル１は、後端がショット粒供給管２４に継手２
５により接続されかつ前後端が開放端である基体２と、
この基体２の軸芯と軸芯を同じくしかつ基体２の内面２
ａとの間に空隙を有するように配置された支持部材３
と、この支持部材３を基体２の内部に固定する固定部材
４と、支持部材３の先端部に接続され、先端に行くにし
たがってラッパ状に拡がる曲面５ａを有するショット粒
反射ブロック５とから構成されている。EXAMPLE A nozzle for shot processing on the inner surface of a pipe material according to an example of the present invention will be described with reference to FIGS. Figure 1 (a)
1 is a vertical cross-sectional view of the nozzle for internal shot processing of this pipe material, FIG.
1B is a view taken along the line AA of FIG. 1A, and FIG.
It is a BB arrow line view of (a). The rear end of the nozzle 1 for shot processing on the inner surface of the pipe material is connected to the shot grain supply pipe 24 by a joint 2
A base body 2 which is connected by 5 and whose front and rear ends are open ends;
An inner surface 2 of the base 2 having the same axis as the base 2
a support member 3 arranged so as to have a gap between
And a shot grain reflection block 5 having a curved surface 5a that is connected to the tip of the support member 3 and that expands in a trumpet shape toward the tip. Has been done.
【００１４】さらに詳述すると、図１（ｂ）のＡ−Ａ矢
視図に示すように、支持部材３を支持する固定部材４
は、支持部材３の後端部分に刻設してある雄ネジ部が螺
合する雌ネジ部を内面に有する円筒部分４ａと、この円
筒部分４ａと前記円筒部２の内壁２ａとの間に一定の空
隙を保有するためのサポートプレート４ｂとから構成さ
れている。また、基体２の内面２ａの一部には、スロー
ト部２ｃが設けられている。More specifically, as shown in the AA arrow view of FIG. 1B, the fixing member 4 for supporting the supporting member 3 is shown.
Is a cylindrical portion 4a having a female screw portion on its inner surface, into which a male screw portion engraved on the rear end portion of the support member 3 is screwed, and between the cylindrical portion 4a and the inner wall 2a of the cylindrical portion 2 It is composed of a support plate 4b for holding a constant gap. A throat portion 2c is provided on a part of the inner surface 2a of the base 2.
【００１５】この管材内面ショット加工用ノズルを使用
して、管材内面のショット加工を行うときには、図２に
示すように、ショット粒供給管２４の先端に接続された
管材内面ショット加工用ノズル１を、ショット加工を行
う管材２１の一管端部２１ａに配置する。When performing the shot processing of the inner surface of the pipe material by using this nozzle for inner surface shot processing of the pipe material, as shown in FIG. 2, the nozzle 1 for the inner surface of the pipe material shot processing connected to the tip of the shot grain supply pipe 24 is used. , Is arranged at one pipe end portion 21a of the pipe material 21 to be shot processed.
【００１６】上述のように配置した後、ショット粒供給
管２４を通してショット粒２３を管材内面ショット加工
用ノズル１に供給する。そして、同時に管材内面ショッ
ト加工用ノズル１を、ショット粒供給管２４ともども管
材２１内部を前進させる。After the arrangement as described above, the shot particles 23 are supplied to the nozzle 1 for shot inner surface shot processing through the shot particle supply pipe 24. At the same time, the nozzle 1 for inner surface shot processing of the pipe material is advanced inside the pipe material 21 together with the shot grain supply pipe 24.
【００１７】管材内面ショット加工用ノズル１に供給さ
れたショット粒２３は、管材内面ショット加工用ノズル
１の基体２の内面２ａと支持部材３で形成される空隙を
通って、前記スロート部２ｃを通過するが、このスロー
ト部２ｃを通過するときにショット粒２３の流速が加速
される。そして、加速されたショット粒２３はラッパ状
に拡がる曲面５ａを有するショット粒反射ブロック５に
衝突する。The shot particles 23 supplied to the nozzle 1 for inner surface shot processing of the pipe material pass through the void formed by the inner surface 2a of the base 2 of the nozzle 1 for inner surface shot processing of the pipe material and the support member 3 to pass through the throat portion 2c. Although it passes, the flow velocity of the shot particles 23 is accelerated when passing through the throat portion 2c. Then, the accelerated shot particles 23 collide with the shot particle reflection block 5 having the curved surface 5a spreading like a trumpet.
【００１８】ショット粒反射ブロック５に突き当たった
ショット粒２３は、当たった面がラッパ状に拡がる曲面
５ａであるため、進路方向が今までの進路方向より管材
の内壁に向かうように転向され、ショット粒反射ブロッ
ク５と円筒部２先端部２ｂとの間から管材２１の内面２
１ｂの管壁に向かって投射される。また、ショット粒反
射ブロック５がラッパ状に拡がる曲面５ａを有するの
で、ショット粒２３は管材２１の内面２１ｂの円周方向
に対して均等に当たる。The shot grain 23 that hits the shot grain reflecting block 5 has a curved surface 5a that spreads like a trumpet, so that the course of the shot grain 23 is turned from the previous course direction toward the inner wall of the pipe material. From between the grain reflection block 5 and the tip portion 2b of the cylindrical portion 2 to the inner surface 2 of the pipe member 21.
It is projected toward the tube wall of 1b. Further, since the shot grain reflection block 5 has the curved surface 5a that spreads in a trumpet shape, the shot grains 23 evenly hit the inner surface 21b of the pipe member 21 in the circumferential direction.
【００１９】なお、支持部材３は図３に示すように、後
端部３ａ外面にネジを設け、これにキャップ６を螺合す
るような構造としているが、キャップ６の頭部６ａを平
面的な形状にすると、ショット粒がキャップ６の頭部６
ａに当たって跳ね返り、前記基体内面２ａ、ショット粒
供給管２４及びショット粒供給管２４とこのショット加
工用ノズルの基体２を接続する継手２５に当り、これら
を内面から損傷させるという問題がある。この問題はキ
ャップ６の頭部６ａの形状を平面的な形状ではなく、基
体後端部にむかって断面積を減ずる形状とすることによ
り解決される。また、固定部材４においても同様の手段
を適用できる。As shown in FIG. 3, the support member 3 has a structure in which a screw is provided on the outer surface of the rear end portion 3a and the cap 6 is screwed into the screw, but the head portion 6a of the cap 6 is planar. If it is made into a different shape, the shot particles will be the head 6 of the cap 6.
There is a problem that it bounces against a and hits the inner surface 2a of the substrate, the shot grain supply pipe 24 and the joint 25 connecting the shot grain supply pipe 24 and the substrate 2 of this shot processing nozzle, and damages them from the inner surface. This problem is solved by making the shape of the head 6a of the cap 6 not a planar shape but a shape in which the cross-sectional area is reduced toward the rear end of the base body. Further, the same means can be applied to the fixing member 4.
【００２０】なお、キャップ６と継手２５管の距離を大
きくとることにより、跳ね返ったショット粒が継手２５
やショット粒供給管２４に当てずに、ショット加工用ノ
ズルの基体２にのみ当てることも可能である。この場
合、ショット加工用ノズルの基体２を耐摩耗性材料で作
成することにより、系全体の耐久性を高めることができ
る。さらには、図４に示すように、ショット加工用ノズ
ルの基体２の後端外面に設ける継手２５との接続用ネジ
のネジ底２ｄの曲率半径を、大きくする事により（０．
３〜０．５ｍｍ程度）、衝撃に対する抵抗力を高めるこ
とができる。By increasing the distance between the cap 6 and the pipe of the joint 25, the shot particles that have bounced off are repelled by the joint 25.
It is also possible to apply only to the substrate 2 of the shot processing nozzle, without applying to the shot grain supply pipe 24. In this case, the durability of the entire system can be enhanced by forming the base body 2 of the shot processing nozzle from an abrasion resistant material. Further, as shown in FIG. 4, by increasing the radius of curvature of the screw bottom 2d of the screw for connecting to the joint 25 provided on the outer surface of the rear end of the base 2 of the shot processing nozzle (0.
It is possible to increase the resistance to impact.
【００２１】[0021]
【発明の効果】この発明により、ショット粒の保有する
運動エネルギを最大に利用できるとともに、均一なショ
ット加工ができる。さらには、ショット加工用ノズルを
転させる必要が無いため、ショット粒供給管に捩じれが
発生せず、ショット加工作業が安定して行える。According to the present invention, the kinetic energy possessed by shot grains can be utilized to the maximum, and uniform shot processing can be performed. Furthermore, since it is not necessary to rotate the shot processing nozzle, the shot grain supply pipe is not twisted, and the shot processing operation can be performed stably.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の実施例の管材内面ショット加工用ノズ
ルの説明図であり、（ａ）は縦断面図、（ｂ）は（ａ）
のＡ−Ａ矢視図、（ｃ）は（ａ）のＢ−Ｂ矢視図であ
る。FIG. 1 is an explanatory view of a nozzle for shot processing on an inner surface of a pipe material according to an embodiment of the present invention, (a) is a longitudinal sectional view, and (b) is (a).
3A is a view as seen from an arrow AA, and FIG. 3C is a view as seen from an arrow BB of FIG.
【図２】本発明の実施例の管材内面ショット加工用ノズ
ルの使用状態を示す説明図である。FIG. 2 is an explanatory view showing a usage state of a nozzle for shot processing on an inner surface of a pipe material according to an embodiment of the present invention.
【図３】キャップの頭部の形状を示す説明図である。FIG. 3 is an explanatory view showing the shape of the head of the cap.
【図４】支持部材のネジ底の形状を示す説明図である。FIG. 4 is an explanatory diagram showing a shape of a screw bottom of a support member.
【図５】従来の管材内面のショット加工の第１の方法を
示す説明図である。FIG. 5 is an explanatory view showing a first method of conventional shot processing on the inner surface of a pipe material.
【図６】従来の管材内面のショット加工の第２の方法を
示す説明図である。FIG. 6 is an explanatory diagram showing a second method of conventional shot processing on the inner surface of a pipe material.
１ 管材内面ショット加工用ノズル ２ 基体 ３ 支持部材 ３ａ 支持部材の後端ネジ部 ４ 固定部材 ５ａ ラッパ状に拡がる曲面 ５ ショット粒反射ブロック ６ キャップ ６ａ キャップの頭部 1 Nozzle for shot processing on inner surface of tubing 2 Base body 3 Support member 3a Rear end screw part of support member 4 Fixing member 5a Curved surface expanding into a trumpet shape 5 Shot grain reflection block 6 Cap 6a Cap head
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 清美 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 亀村 佳樹 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyomi Tanaka 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Yoshiki Kamemura 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Main Steel Pipe Co., Ltd.
Claims (3)
筒状の基体；軸芯が該基体の軸芯上に位置し、該基体の
内部に固定された支持部材；該支持部材を前記基体の内
部に固定する固定部材；前記支持部材の先端部に頭頂部
をショット粒の流れの上流方向に向け固定され、ショッ
ト粒の流れの下流方向に向けてラッパ状に拡がる曲面を
有するショット粒反射ブロック；前記基体の内面と前記
支持部材の外面との間のショット粒流路；前記基体先端
部と前記ショット粒反射ブロックとの間のショット粒流
路；を備えることを特徴とする管材内面ショット加工用
ノズル。1. A cylindrical substrate having a rear end connected to a shot grain supply pipe; a support member having an axis located on the axis of the substrate and fixed inside the substrate; A fixing member for fixing inside the substrate; a shot grain having a curved top portion that is fixed to the tip end portion of the support member in the upstream direction of the flow of shot grains and has a curved surface that spreads like a trumpet toward the downstream direction of the flow of shot grains. An inner surface of the pipe material, comprising: a reflection block; a shot grain channel between the inner surface of the base and the outer surface of the support member; a shot grain channel between the tip of the substrate and the shot grain reflection block. Shot processing nozzle.
側にむかって減少し、最少径となり、更に先端側に向っ
て増大する；前記支持部材を前記基体の内部に固定する
固定部材が基体の後端側の内径が大きい部分に位置す
る；ことを特徴とする請求項１に記載の管材内面ショッ
ト加工用ノズル。2. The inner diameter of the base body is large on the rear end side, decreases toward the front end side, becomes the minimum diameter, and further increases toward the front end side; a fixing member for fixing the supporting member inside the base body. 2. The nozzle for shot inner surface of pipe material according to claim 1, wherein the nozzle is located in a portion of the base body on the rear end side where the inner diameter is large.
及び両方の前記ショット粒の流れに対して直角方向の断
面が前記ショット粒の流れの方向の上流側に向けて減少
する；ことを特徴とする請求項１及び請求項２に記載の
管材内面ショット加工用ノズル。3. A cross section of one or both of the support member and the fixing member in a direction perpendicular to the flow of the shot particles decreases toward the upstream side in the flow direction of the shot particles. The nozzle for shot processing on the inner surface of the pipe material according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32264193A JPH0752046A (en) | 1993-05-31 | 1993-12-21 | Shot working nozzle for inner face of tube |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12866593 | 1993-05-31 | ||
| JP5-128665 | 1993-05-31 | ||
| JP32264193A JPH0752046A (en) | 1993-05-31 | 1993-12-21 | Shot working nozzle for inner face of tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0752046A true JPH0752046A (en) | 1995-02-28 |
Family
ID=26464272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32264193A Withdrawn JPH0752046A (en) | 1993-05-31 | 1993-12-21 | Shot working nozzle for inner face of tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752046A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064194A (en) * | 2008-09-11 | 2010-03-25 | Hitachi Constr Mach Co Ltd | Jet nozzle for irradiating inner surface of hole |
| EP2835221A1 (en) | 2013-08-08 | 2015-02-11 | Fuji Jukogyo Kabushiki Kaisha | Blast processing device and blast processing method |
| CN110695854A (en) * | 2019-10-29 | 2020-01-17 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Sand blasting device applied to surface treatment in bearing mounting hole |
-
1993
- 1993-12-21 JP JP32264193A patent/JPH0752046A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064194A (en) * | 2008-09-11 | 2010-03-25 | Hitachi Constr Mach Co Ltd | Jet nozzle for irradiating inner surface of hole |
| EP2835221A1 (en) | 2013-08-08 | 2015-02-11 | Fuji Jukogyo Kabushiki Kaisha | Blast processing device and blast processing method |
| JP2015033741A (en) * | 2013-08-08 | 2015-02-19 | ブラスト工業株式会社 | Blast treatment device and method |
| KR20150018416A (en) | 2013-08-08 | 2015-02-23 | 후지 주코교 카부시키카이샤 | Blast processing apparatus and blast processing method |
| US9839988B2 (en) | 2013-08-08 | 2017-12-12 | Subaru Corporation | Blast processing device and blast processing method |
| CN110695854A (en) * | 2019-10-29 | 2020-01-17 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Sand blasting device applied to surface treatment in bearing mounting hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010306 |