JP3420535B2 - Stub end and manufacturing method thereof - Google Patents
Stub end and manufacturing method thereofInfo
- Publication number
- JP3420535B2 JP3420535B2 JP21798899A JP21798899A JP3420535B2 JP 3420535 B2 JP3420535 B2 JP 3420535B2 JP 21798899 A JP21798899 A JP 21798899A JP 21798899 A JP21798899 A JP 21798899A JP 3420535 B2 JP3420535 B2 JP 3420535B2
- Authority
- JP
- Japan
- Prior art keywords
- short pipe
- inner peripheral
- pipe portion
- short
- base end
- 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.)
- Expired - Fee Related
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、設備配管用スタブ
エンドおよびその製造方法に関する。TECHNICAL FIELD The present invention relates to a stub end for equipment piping and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来知られているスタブエンドは、肉厚
の短管１１の基端にフレア加工により鍔部１２を設け
（図４参照）、然るのち短管部１３の内周面および鍔部
１２の外側面を切削加工により削り落とし（図５参
照）、よって短管部１３の内周面１４の基端縁と鍔部１
２の外側面１５の内周縁とが直角に交わった形状を呈す
る半完成品１６を構成してから、当該半完成品１６の短
管部１３の先端に予め得ていたグルーブ１７付の補助短
管１８を溶接により連結し且つ当該溶接個所に仕上加工
を施すことによって完成品１９（図６参照）を得るよう
にしたものであった。2. Description of the Related Art In a conventionally known stub end, a flange portion 12 is provided by flare processing on the base end of a thick short pipe 11 (see FIG. 4), and then the inner peripheral surface of the short pipe portion 13 and The outer surface of the collar portion 12 is scraped off by cutting (see FIG. 5), so that the base end edge of the inner peripheral surface 14 of the short pipe portion 13 and the collar portion 1 are cut off.
After forming a semi-finished product 16 having a shape in which the inner peripheral edge of the outer side surface 15 of the second crosses at a right angle, an auxiliary short with a groove 17 previously obtained at the tip of the short pipe portion 13 of the semi-finished product 16 The finished product 19 (see FIG. 6) was obtained by connecting the pipes 18 by welding and subjecting the welded portions to finishing work.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の技術におい
て述べたスタブエンドは、短管部１３の内周面を削り落
とすのに行う切削加工の可能な長さが、工具の機能等に
より限定されるてしまうという致命的な悪因があったた
めに、短管部１３の長いものを一挙に作ることができな
いでいたものであって、上記のようにグルーブ１７付の
補助短管１８を別途予め製作しておいてこれを溶接によ
り連結して短管部分の長い完成品１９を得る必要があっ
た。これが、製造の作業性の悪化を招き、低コスト化の
障害となっていたという問題点を享有しているものであ
った。In the stub end described in the above-mentioned conventional technique, the length of the cutting work for cutting off the inner peripheral surface of the short pipe portion 13 is limited by the function of the tool and the like. Since there is a fatal adverse effect such as slackening, it has been impossible to make long ones of the short pipe portion 13 all at once, and the auxiliary short pipe 18 with the groove 17 is separately prepared in advance as described above. It was necessary to manufacture them and connect them by welding to obtain a finished product 19 having a long short tube portion. This brings about the problem that the workability of manufacturing is deteriorated and the cost is hindered.
【０００４】本発明は、上記問題点を解消することを目
的として研究開発を行うことによって得た新規の、スタ
ブエンドおよびその製造方法を提供する。The present invention provides a novel stub end obtained by conducting research and development for the purpose of solving the above problems, and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明に係るスタブエンドは、短管部１の基端に連続
して鍔部２を、短管部１の内周面３の基端縁と鍔部２の
外側面４の内周縁とが直角に交わった形状を呈する状態
で設けたステンレス等金属製母材５の短管部１へ当該短
管部１の軸に対して直角な方向の圧力を加えることによ
って同部１を長く伸ばして構成した伸長部６と、当該伸
長部６の先端寄り個所に設けたグルーブ７と、から成る
ものであり、In order to achieve the above object, a stub end according to the present invention has a collar portion 2 continuous with a base end of a short pipe portion 1 and an inner peripheral surface 3 of the short pipe portion 1. To the short pipe portion 1 of the metal base material 5 such as stainless steel provided in a state where the base edge and the inner peripheral edge of the outer side surface 4 of the collar portion 2 intersect at a right angle with respect to the axis of the short pipe portion 1. The extension portion 6 is formed by extending the same portion 1 by applying a pressure in a right angle direction, and a groove 7 provided at a portion near the tip of the extension portion 6,
【０００６】また、本発明に係るスタブエンドの製造方
法は、短管部１の基端に連続して鍔部２を、短管部１の
内周面３の基端縁と鍔部２の外側面４の内周縁とが直角
に交わった形状を呈する状態で設けたステンレス等金属
製母材５を構成し、この母材５の短管部１に当該短管部
１の軸に対して直角な方向の圧力を加えることによって
同部１を長く伸ばし、然るのちに当該伸長部６の先端寄
り個所にグルーブ７を設けて完成するようにしたもので
ある。Further, in the method of manufacturing a stub end according to the present invention, the brim portion 2 is continuously formed at the base end of the short pipe portion 1, and the base end edge of the inner peripheral surface 3 of the short pipe portion 1 and the brim portion 2 are formed. A base material 5 made of metal such as stainless steel is provided in a state where the inner peripheral edge of the outer side surface 4 intersects with the inner peripheral edge at a right angle, and the base material 5 has a short pipe portion 1 with respect to the axis of the short pipe portion 1. The section 1 is elongated by applying a pressure in a right angle direction, and after that, a groove 7 is provided near the tip of the extension section 6 to complete the section.
【０００７】[0007]
【実施例】本発明の実施例を図面に依拠して説明する。
すなわち、まず、ステンレス材を以て、短管部１の基端
に連続して鍔部２を、短管部１の内周面３の基端縁と鍔
部２の外側面４の内周縁とが直角に交わった形状を呈す
る状態で設けた母材５（図１参照）を構成する。次ぎ
に、母材５の短管部１に当該短管部１の軸に対して直角
な方向の圧力を加えることによって同部１を所望の長さ
まで伸ばす（図２参照）。然るのちに、上記加圧により
伸ばした伸長部６の先端寄り個所にロール・グルーブ７
を設けて完成品８を得る（図３参照）ようにしたもので
ある。Embodiments of the present invention will be described with reference to the drawings.
That is, first, using a stainless steel material, the collar portion 2 is continuously formed on the base end of the short pipe portion 1, and the base end edge of the inner peripheral surface 3 of the short pipe portion 1 and the inner peripheral edge of the outer surface 4 of the collar portion 2 are separated. The base material 5 (see FIG. 1) provided in a state of intersecting at a right angle is configured. Next, pressure is applied to the short pipe portion 1 of the base material 5 in a direction perpendicular to the axis of the short pipe portion 1 to extend the short pipe portion 1 to a desired length (see FIG. 2). After that, the roll / groove 7 is provided at a position near the tip of the extension portion 6 extended by the above-mentioned pressurization.
Is provided to obtain the finished product 8 (see FIG. 3).
【０００８】本発明は、ステンレス材の代わりにステン
レス合金、チタニウム、チタニウム合金、等の金属材料
を使用する、In the present invention, a metal material such as stainless alloy, titanium, titanium alloy, etc. is used in place of the stainless material.
【０００９】[0009]
【発明の効果】本発明によるときには、グルーブ付の補
助短管を別途予め製作しておいて溶接により短管部に連
結する工程をいらなくすることができ、この工程があっ
たために生じていた製造の作業性の悪化、低コスト化の
障害等を解消することができ、所期の目的を完全に達成
する著効を奏するものである。According to the present invention, it is possible to eliminate the step of separately manufacturing the auxiliary short pipe with the groove and connecting it to the short pipe portion by welding, which is caused by this process. It is possible to solve problems such as deterioration of manufacturing workability and cost reduction, and it is possible to achieve the desired effect completely.
【図１】母材を示す断面図である。FIG. 1 is a cross-sectional view showing a base material.
【図２】伸長加工直後を示す断面図である。FIG. 2 is a cross-sectional view showing immediately after extension processing.
【図３】本考案完成品を示す断面図である。FIG. 3 is a sectional view showing a finished product of the present invention.
【図４】フレア加工直後を示す断面図である。FIG. 4 is a cross-sectional view showing immediately after flare processing.
【図５】半完成品を示す断面図である。FIG. 5 is a sectional view showing a semi-finished product.
【図６】従来例完成品を示す断面図である。FIG. 6 is a cross-sectional view showing a conventional finished product.
１ 短管部 ２ 鍔部 ３ 内周面 ４ 外側面 ５ 母材 ６ 伸長部 ７ グルーブ ８ 完成品 １１ 短管 １２ 鍔部 １３ 短管部 １４ 内周面 １５ 外側面 １６ 半完成品 １７ グルーブ １８ 補助短管 １９ 完成品 1 Short pipe part 2 Tsuba 3 Inner surface 4 outer surface 5 Base material 6 Extension part 7 groove 8 finished products 11 Short tube 12 collar part 13 Short section 14 Inner surface 15 Outer side 16 semi-finished products 17 groove 18 Auxiliary short pipe 19 finished products
Claims (2)
管部１の内周面３の基端縁と鍔部２の外側面４の内周縁
とが直角に交わった形状を呈する状態で設けたステンレ
ス等金属製母材５の短管部１へ当該短管部１の軸に対し
て直角な方向の圧力を加えることによって同部１を長く
伸ばして構成した伸長部６と、当該伸長部６の先端寄り
個所に設けたグルーブ７と、から成るスタブエンド。1. A brim portion 2 is continuously formed from a base end of the short pipe portion 1, and a base end edge of an inner peripheral surface 3 of the short pipe portion 1 and an inner peripheral edge of an outer side surface 4 of the brim portion 2 intersect at a right angle. An extension formed by extending the portion 1 of the metal base material 5 made of metal such as stainless steel in a state of exhibiting a long shape by applying a pressure in a direction perpendicular to the axis of the short portion 1. A stub end including a portion 6 and a groove 7 provided at a portion near the tip of the extension portion 6.
管部１の内周面３の基端縁と鍔部２の外側面４の内周縁
とが直角に交わった形状を呈する状態で設けたステンレ
ス等金属製母材５を構成し、この母材５の短管部１に当
該短管部１の軸に対して直角な方向の圧力を加えること
によって同部１を長く伸ばし、然るのちに当該伸長部６
の先端寄り個所にグルーブ７を設けて完成することを特
徴するスタブエンドの製造方法。2. The brim portion 2 is continuous with the base end of the short pipe portion 1, and the base end edge of the inner peripheral surface 3 of the short pipe portion 1 and the inner peripheral edge of the outer side surface 4 of the brim portion 2 intersect at a right angle. By forming a base material 5 made of metal such as stainless steel in a state of exhibiting a different shape, and applying a pressure in a direction perpendicular to the axis of the short tube portion 1 to the short tube portion 1 of the base material 5, the same portion is formed. 1 for a long time, and then the extension 6
A stub end manufacturing method, characterized in that the groove 7 is provided at a portion near the tip of the stub end for completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21798899A JP3420535B2 (en) | 1999-07-30 | 1999-07-30 | Stub end and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21798899A JP3420535B2 (en) | 1999-07-30 | 1999-07-30 | Stub end and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001041365A JP2001041365A (en) | 2001-02-13 |
| JP3420535B2 true JP3420535B2 (en) | 2003-06-23 |
Family
ID=16712870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21798899A Expired - Fee Related JP3420535B2 (en) | 1999-07-30 | 1999-07-30 | Stub end and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3420535B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020084737A (en) * | 2001-05-02 | 2002-11-11 | 강병열 | Manufacturing method of improvements in stub-end for connecting stainless steel pipes |
-
1999
- 1999-07-30 JP JP21798899A patent/JP3420535B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001041365A (en) | 2001-02-13 |
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