JPH0570533B2 - - Google Patents
Info
- Publication number
- JPH0570533B2 JPH0570533B2 JP1151427A JP15142789A JPH0570533B2 JP H0570533 B2 JPH0570533 B2 JP H0570533B2 JP 1151427 A JP1151427 A JP 1151427A JP 15142789 A JP15142789 A JP 15142789A JP H0570533 B2 JPH0570533 B2 JP H0570533B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- pipe material
- hole
- flange material
- pipe
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 143
- 238000000034 method Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Forging (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、パイプ材とフランジ材との接合方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of joining a pipe material and a flange material.
（従来技術）
パイプ材とフランジ材の接合方法としては、従
来より、例えば第８図に示すように、フランジ材
８１の貫通穴８３にパイプ材８２を嵌挿した後、
溶接８４により両部材を接合する方法、また第９
図に示すように、パイプ材９２の端鵜に二重折り
返し部９２ａを形成し、これをフランジ材９１の
他のフランジ材との衝合面９１ａに設けた嵌装溝
９１ｂに嵌入し、プレス材９４による外部からの
圧入により両部材を接合する方法、さらに実開昭
61−82189号公報に開示されるように（第１０図
参照）、パイプ材１０２の端部に多段口拡げ部１
０２合を形成し、該多段口拡げ部１０２ａの外周
の形状寸法と合致する段差穴１０１ａを設けたフ
ランジ材１０１を嵌合させ両部材を接合する方法
などがある。(Prior Art) As a conventional method for joining a pipe material and a flange material, for example, as shown in FIG. 8, after a pipe material 82 is inserted into a through hole 83 of a flange material 81,
The method of joining both members by welding 84, and the ninth
As shown in the figure, a double folded part 92a is formed on the end of the pipe material 92, and this is inserted into the fitting groove 91b provided on the abutting surface 91a of the flange material 91 with another flange material, and then pressed. A method of joining both members by press-fitting from the outside using material 94, and further
As disclosed in Japanese Patent No. 61-82189 (see FIG. 10), a multi-stage opening portion 1 is provided at the end of the pipe material 102.
There is a method of joining both members by forming a 02 joint and fitting a flange material 101 provided with a step hole 101a that matches the shape and size of the outer periphery of the multi-step widened portion 102a.
（発明が解決しようとする課題）
ところが、これらの従来のパイプ材とフランジ
材の接合方法により両部材を接合する場合、たと
えば第８図の従来例においては、溶接により両部
材を接合するため、また、第９図の従来例におい
は、パイプ材の端部に二重折り返し部を形成し、
これをフランジ材の他のフランジ材との衝合面に
設けた嵌装溝に嵌入し、プレス材９４等により前
記パイプ材を前記フランジ材に圧着するため、さ
らに、第１０図の従来例においては、パイプ材の
端部に多段口拡げ部を形成し、該多段口拡げ部の
外周の形状寸法と合致する段差穴を設けたフラン
ジ材を嵌合し、溶接により両部材を接合するた
め、いずれも当該作業に手間がかかり作業能率が
下がるという問題がある。(Problem to be Solved by the Invention) However, when joining the two members using these conventional joining methods of pipe material and flange material, for example, in the conventional example shown in FIG. 8, since the two members are joined by welding, In addition, in the conventional example shown in FIG. 9, a double folded portion is formed at the end of the pipe material,
This is inserted into a fitting groove provided on the abutting surface of the flange material with another flange material, and the pipe material is crimped onto the flange material using a press material 94 or the like. In order to form a multi-stage widened part at the end of the pipe material, fit a flange material with a stepped hole that matches the shape and size of the outer periphery of the multi-stage widened part, and join both members by welding. In either case, there is a problem that the work is time-consuming and work efficiency is reduced.
そこで、本発明は、前記接合作業などの手間を
省き作業能率の向上を図ることのできるパイプ材
とフランジ材の接合方法を提供せんとするもので
ある。 Therefore, the present invention aims to provide a method for joining a pipe material and a flange material, which can save the labor of the joining work and improve work efficiency.
（課題を解決するための手段）
本発明では、前記課題を解決するための手段と
して、パイプ材と、該パイプ材を内接嵌挿させ得
る内径を有する貫通穴及び他のフランジ材の衝合
する衝合面を備えたフランジ材との接合方法にお
いて、前記フランジ材の前記貫通穴内に前記パイ
プ材を内接嵌挿し、その端部を前記衝合面と略面
一になるようにした後、前記貫通穴より大径の環
状凸部を備えた成形型を前記フランジ際の前記衝
合面に押圧して該衝合面の前記貫通穴の外側に環
状凹部を形成するとともに、該環状凹部形成時に
前記フランジ材内部に発生する余肉の一部を前記
貫通穴側に膨出し、前記フランジ材と前記パイプ
材との間に接触圧を発生せしめ、前記パイプ材の
前記フランジ材からの抜け方向の移動を阻止する
ようにしたことを特徴とするものである。(Means for Solving the Problem) In the present invention, as a means for solving the problem, a pipe material, a through hole having an inner diameter that allows the pipe material to be internally fitted, and another flange material are brought into contact with each other. In the method for joining a flange material having an abutting surface, the pipe material is internally inserted into the through hole of the flange material, and the end thereof is made substantially flush with the abutting surface. , a mold having an annular convex portion having a larger diameter than the through hole is pressed against the abutting surface near the flange to form an annular recess outside the through hole on the abutting surface; A part of the excess thickness generated inside the flange material during formation bulges toward the through hole side, generating contact pressure between the flange material and the pipe material, and preventing the pipe material from coming out of the flange material. This feature is characterized by preventing movement in the direction.
（作用）
本発明では前記の手段により、前記余肉が前記
貫通穴側へ膨出すると、前記接触圧が発生して前
記パイプ材側面を径方向内側へ押圧するととも
に、前記パイプ材端部をその全周方向から挟圧包
囲し、その結果、前記パイプ材は前記フランジ材
と接合される。(Function) According to the present invention, when the extra wall bulges toward the through hole side, the contact pressure is generated to press the side surface of the pipe material radially inward, and the end portion of the pipe material is The pipe material is surrounded by pressure from the entire circumferential direction, and as a result, the pipe material is joined to the flange material.
（発明の効果）
以上のように、本発明の接合方法によれば、前
記フランジ材における他のフランジ材との衝合面
に、前記貫通穴より大径の環状凸部を有する成形
型を押圧させて、該衝合面の前記間通穴の外側に
環状凹部を形成するだけで前記パイプ材と前記フ
ランジ材を接合することが可能となり、接合作業
の手間を省き作業能率の向上を図り得る効果があ
る。(Effects of the Invention) As described above, according to the joining method of the present invention, a mold having an annular convex portion having a larger diameter than the through hole is pressed on the abutting surface of the flange material with another flange material. Then, the pipe material and the flange material can be joined by simply forming an annular recess on the outside of the through hole of the abutment surface, which saves the effort of joining work and improves work efficiency. effective.
（実施例）
以下、本発明のいくつか実施例を、図面を参照
しながら説明する。(Embodiments) Hereinafter, some embodiments of the present invention will be described with reference to the drawings.
第１実施例
本発明の第１実施例を、第１図ないし第４図を
参照しながら説明すると、この実施例では、先端
部２１を外側に向けて半円弧のカーリング部２１
ａとしたパイプ材２を使用している。そして、こ
れに対応してフランジ材１側には前記カーリング
部２１ａが嵌入する環状溝部１１ａを形成してい
る。フランジ材１には、第１図に示すように、前
記パイプ材２を内接嵌装させ得る内径を有する貫
通穴３が形成されている。このフランジ材１に対
して前記パイプ材２を接合するには、先ず前記フ
ランジ材１の前記貫通穴３に前記パイプ材２を内
接嵌挿させ、その先端部２１を前記フランジ材１
の他のフランジ材と衝合する衝合面１１と略面一
になるようにした後、前記貫通穴３より大径の環
状凸部４１ａを備えた上型４１と、前記フランジ
材１の非衝合面１２を固定する下型４２とからな
る成形型４により挟圧する。そうすると、前記環
状凸部４１ａが前記フランジ材１の衝合面１１を
押圧して前記貫通穴３の外側に第２図に示すよう
に、環状凹部５が形成される。First Embodiment A first embodiment of the present invention will be described with reference to FIGS.
Pipe material 2 named a is used. Correspondingly, an annular groove portion 11a into which the curling portion 21a is fitted is formed on the flange material 1 side. As shown in FIG. 1, the flange material 1 is formed with a through hole 3 having an inner diameter into which the pipe material 2 can be internally fitted. In order to join the pipe material 2 to the flange material 1, first, the pipe material 2 is internally fitted into the through hole 3 of the flange material 1, and the tip end 21 of the pipe material 2 is inserted into the through hole 3 of the flange material 1.
After making the surface substantially flush with the abutting surface 11 that abuts with the other flange material, an upper die 41 having an annular convex portion 41a with a larger diameter than the through hole 3 and the non-contact surface of the flange material 1 are formed. The abutting surface 12 is clamped by a mold 4 consisting of a lower mold 42 that fixes the abutting surface 12. Then, the annular convex portion 41a presses the abutting surface 11 of the flange material 1, and an annular recess 5 is formed outside the through hole 3 as shown in FIG.
次に、前記環状凹部５の形成による作用を説明
すると、同環状凹部５の形成時には前記フランジ
材１の内部に余肉が発生し、該余肉が前記貫通穴
３側に膨出するため、第２図に示すように前記余
肉の一部１３が前記フランジ材１と前記パイプ材
２との間に接触圧を発生せしめ、前記パイプ材２
の側面部２２を径方向内側で押圧するとともに、
前記余肉の他の一部１４が前記パイプ材２の先端
部２１の上方へ盛り上がり該先端部２１を包囲す
る。このとき、前記成形型上型４１の下面のうち
前記環状凸部４１ａより径方向内側の面４１ｂが
前記盛り上がり部を押圧するため、該盛り上がり
部は前記衝合面１１と略面一となる。その結果、
前記パイプ材２は前記フランジ材１と強圧接合す
るため、前記フランジ材１からの抜け方向への移
動が阻止される。 Next, the effect of forming the annular recess 5 will be explained. When the annular recess 5 is formed, extra thickness is generated inside the flange material 1, and the extra thickness bulges toward the through hole 3. As shown in FIG. 2, a portion 13 of the excess thickness generates contact pressure between the flange material 1 and the pipe material 2, and the pipe material 2
While pressing the side part 22 of the radially inner side,
The other part 14 of the excess wall bulges upwards above the tip 21 of the pipe material 2 and surrounds the tip 21. At this time, the surface 41b of the lower surface of the upper die 41 that is radially inner than the annular convex portion 41a presses the raised portion, so that the raised portion is substantially flush with the abutting surface 11. the result,
Since the pipe material 2 is joined to the flange material 1 under strong pressure, movement in the direction of removal from the flange material 1 is prevented.
なお、フランジ材１，１の相互の衝合に際して
はシールの必要性から前記各フランジ材１，１の
衝合面１１，１１にそれぞれシール材用の溝を形
成し、該溝にシール材を嵌合することによつてシ
ールを行うのが通例であり、そのためには前記溝
を形成する作業工程が別途必要であるが、本発明
においては、第３図に示すように環状凹部５をも
つてシール材６用の溝として利用できるため、該
溝を形成する作業工程は不要となりその分作業能
率は向上する（以下の実施例においても同じ）。
第４図は、フランジ材１，１の相互の衝合に際し
て前記環状凹部５にシール材６を嵌合しフランジ
材１，１の相互間のシールを行つた状態を示して
いる。 In addition, when the flange materials 1, 1 are brought into contact with each other, grooves for sealing materials are formed in the abutment surfaces 11, 11 of each of the flange materials 1, 1, respectively, due to the necessity of sealing. It is customary to perform sealing by fitting, and for this purpose a separate work step of forming the groove is required, but in the present invention, as shown in FIG. Since the groove can be used as a groove for the sealing material 6, the work process for forming the groove is not necessary, and work efficiency is improved accordingly (the same applies to the following embodiments).
FIG. 4 shows a state in which the sealing material 6 is fitted into the annular recess 5 when the flange materials 1, 1 are brought into contact with each other, thereby sealing the flange materials 1, 1.
第２実施例
本発明の第２実施例を、第５図及び第６図を参
照しながら説明すると、この実施例においても第
１実施例と同様に、先端部２１を外側に向けて半
円弧のカーリング部２１ａとしたパイプ材２を使
用している。そして、これに対応してフランジ材
１側には前記カーリング部２１ａが嵌入する環状
溝部１１ａを形成している。また、同環状溝部１
１ａには前記カーリング部２１ａとの係止を強固
にするための環状凹部１１ｂをも形成している。
フランジ材１には、第５図に示すように、前記パ
イプ材２を内接嵌装させ得る内径を有する貫通穴
３が形成されている。このフランジ材１に対して
前記バイプ材２を接合するには、先ず前記フラン
ジ材１の前記貫通穴３に前記パイプ材２を内接嵌
挿させ、その先端部２１を前記フランジ材１の他
のフランジ材と衝合する衝合面１１と略面一にな
るようにした後、前記第１実施例と同様に成形型
４により挟圧する。そうすると、前記成形型４の
環状凸部４１ａが前記フランジ材１の衝合面１１
を押圧して前記貫通穴３の外側に第６図に示すよ
うに、環状凹部５が形成される。次に、前記環状
凹部５の形成による作用を説明すると、同環状凹
部５の形成時には前記フランジ材１の内部に余肉
が発生し、該余肉が前記貫通穴３側に膨出するた
め、第６図を示すように前記余肉の一部１３が前
記フランジ材１と前記パイプ材２との間に接触圧
を発生せしめ、前記パイプ材２の側面部２２を径
方向内側へ押圧するとともに、前記余肉の他の一
部１４が前記パイプ材２の先端部２１の上方へ盛
り上がり前記先端部２１を包囲する。このとき、
第１実施例と同様に前記盛り上がり部は前記衝合
面１１と略面一となる。さらに前記パイプ材２の
カーリング部２１ａが係止する部分の余肉１５が
前記カーリング部２１ａを押圧し該カーリング部
２１ａを前記環状凹部１１ｂ側へ押し曲げる。そ
の結果、前記パイプ材２は第１実施例の場合に比
べて前記フランジ材１とより一層強圧接合するた
め、前記フランジ材１からの抜け方向への移動が
阻止される。Second Embodiment A second embodiment of the present invention will be described with reference to FIGS. 5 and 6. In this embodiment as well, the distal end portion 21 is turned outward in a semicircular arc, as in the first embodiment. A pipe material 2 with a curled portion 21a is used. Correspondingly, an annular groove portion 11a into which the curling portion 21a is fitted is formed on the flange material 1 side. In addition, the annular groove 1
An annular recess 11b is also formed in 1a to strengthen the engagement with the curling portion 21a.
As shown in FIG. 5, the flange material 1 is formed with a through hole 3 having an inner diameter into which the pipe material 2 can be internally fitted. In order to join the pipe material 2 to the flange material 1, first, the pipe material 2 is internally fitted into the through hole 3 of the flange material 1, and the tip end 21 of the pipe material 2 is inserted into the through hole 3 of the flange material 1. After making it substantially flush with the abutting surface 11 that abuts against the flange material, it is compressed by the mold 4 in the same manner as in the first embodiment. Then, the annular convex portion 41a of the mold 4 is aligned with the abutting surface 11 of the flange material 1.
As shown in FIG. 6, an annular recess 5 is formed outside the through hole 3 by pressing. Next, the effect of forming the annular recess 5 will be explained. When the annular recess 5 is formed, extra thickness is generated inside the flange material 1, and the extra thickness bulges toward the through hole 3. As shown in FIG. 6, a portion 13 of the extra thickness generates contact pressure between the flange material 1 and the pipe material 2, pressing the side surface 22 of the pipe material 2 inward in the radial direction. , the other part 14 of the excess wall bulges above the tip 21 of the pipe material 2 and surrounds the tip 21. At this time,
As in the first embodiment, the raised portion is substantially flush with the abutting surface 11. Further, the excess wall 15 of the portion of the pipe material 2 where the curling portion 21a is engaged presses the curling portion 21a, pushing and bending the curling portion 21a toward the annular recess 11b. As a result, the pipe material 2 is joined to the flange material 1 under stronger pressure than in the case of the first embodiment, so that movement in the direction of removal from the flange material 1 is prevented.
第３実施例
本発明の第３実施例を、第７図を参照しながら
説明すると、この実施例では、先端部２１が直筒
状のパイプ材２を使用している。フランジ材１に
は、第７図に示すように、前記パイプ材２を内接
嵌挿させ得る内径を有する貫通穴３が形成されて
いる。このフランジ材１に対して前記パイプ材２
を接合するには、先ず前記フランジ材１の前記貫
通穴３に前記パイプ材２を内接嵌挿させ、その先
端部２１を前記フランジ材１の他のフランジ材と
衝合する衝合面１１と略面一になるようにした
後、前記第１、第２実施例と同様に成形型４によ
り挟圧する。そうすると、前記成形型４の環状凸
部４１ａが前記フランジ材１の衝合面１１を押圧
して前記貫通穴３の外側に第７図に示すように、
環状凹部５が形成される。Third Embodiment A third embodiment of the present invention will be described with reference to FIG. 7. In this embodiment, a pipe material 2 having a straight cylindrical tip portion 21 is used. As shown in FIG. 7, the flange material 1 is formed with a through hole 3 having an inner diameter into which the pipe material 2 can be internally inserted. The pipe material 2 is
To join, first, the pipe material 2 is internally fitted into the through hole 3 of the flange material 1, and the tip end 21 of the pipe material 2 is inserted into the abutting surface 11 of the flange material 1, which abuts against the other flange material. After making it substantially flush, it is pressed with the mold 4 in the same manner as in the first and second embodiments. Then, the annular convex portion 41a of the mold 4 presses the abutment surface 11 of the flange material 1 to the outside of the through hole 3, as shown in FIG.
An annular recess 5 is formed.
次に、前記環状凹部５の形成による作用を説明
すると、同環状凹部５の形成時には前記フランジ
材１の内部に余肉１６が発生し、該余肉１６が前
記貫通穴３側に膨出するため、第７図に示すよう
に前記フランジ材１と前記パイプ材２との間に接
触圧を発生せしめ、前記パイプ材２の側面部２２
を径方向内側へ押圧する。その結果、前記パイプ
材２は前記フランジ材１と強圧接合するため、前
記フランジ材からの抜け方向への移動が阻止され
る。 Next, to explain the effect of forming the annular recess 5, when the annular recess 5 is formed, an extra thickness 16 is generated inside the flange material 1, and the extra thickness 16 bulges toward the through hole 3 side. Therefore, as shown in FIG. 7, a contact pressure is generated between the flange material 1 and the pipe material 2, and the side surface 22 of the pipe material 2 is
Press radially inward. As a result, the pipe material 2 is joined to the flange material 1 under strong pressure, so that movement in the direction of removal from the flange material is prevented.
第１図は本発明第１実施例の説明図で、環状溝
部を形成したフランジ材にカーリング部を有する
パイプ材を係止させ且つ成形型をセツトしたとき
の断面図、第２図は第１図におけるフランジ材の
衝合面に環状凹部を形成したときの断面図、第３
図は環状凹部にシール材を嵌合したときの断面
図、第４図はフランジ材相互の衝合に際してシー
ルを行つたときの状態図、第５図は本発明第２実
施例の説明図で、環状溝部及び環状凹部を形成し
たフランジ材にカーリング部を有するパイプ材が
係止したときの断面図、第６図は第５図における
フランジ材の衝合面に環状凹部を形成したときの
断面図、第７図は本発明第３実施例の説明図で、
真筒状のパイプ材がフランジ材に係止した状態で
フランジ材の衝合面に環状凹部を形成したときの
断面図、第８図は従来例のうち溶接により両部材
を接合したときの断面図、第９図は従来例のうち
パイプ材の端部に二重折り返し部を形成し、フラ
ンジ材に設けた嵌装溝に嵌入し、プレス材等によ
る外部からの圧入により両部材を接合したときの
断面図、第１０図は従来例のうちパイプ材の端部
に多段口拡げ部を形成し、該多段口拡げ部の外周
の形状寸法と合致する段差穴を設けたフランジ材
を嵌合させ両部材を接合したときの断面図であ
る。
１……フランジ材、２……パイプ材、３……貫
通穴、４……成形型、５……環状凹部、６……シ
ール材、１１……他のフランジ材との衝合面、１
３〜１６……余肉、２１……パイプ材先端部、２
２……パイプ材側面部。
Fig. 1 is an explanatory diagram of the first embodiment of the present invention, and is a cross-sectional view when a pipe material having a curling part is engaged with a flange material in which an annular groove is formed and a mold is set. A cross-sectional view when an annular recess is formed on the abutting surface of the flange material in the figure, No. 3
The figure is a sectional view when the sealing material is fitted into the annular recess, FIG. 4 is a state diagram when sealing is performed when the flange materials collide with each other, and FIG. 5 is an explanatory diagram of the second embodiment of the present invention. , a cross-sectional view when a pipe material having a curling part is locked to a flange material having an annular groove and an annular recess formed therein; FIG. 6 is a cross-sectional view when an annular recess is formed on the abutting surface of the flange material in FIG. 5; FIG. 7 is an explanatory diagram of the third embodiment of the present invention,
A cross-sectional view when a tubular pipe material is locked to a flange material and an annular recess is formed on the abutting surface of the flange material. Figure 8 is a cross-sectional view of a conventional example when both members are joined by welding. Figure 9 shows a conventional example in which a double folded part is formed at the end of the pipe material, fitted into a fitting groove provided in the flange material, and both members are joined by press-fitting from the outside with a press material etc. Fig. 10 shows a conventional example in which a multi-stage widened part is formed at the end of a pipe material, and a flange material is fitted with a stepped hole that matches the shape and size of the outer periphery of the multi-stage widened part. FIG. 3 is a cross-sectional view when both members are joined together. DESCRIPTION OF SYMBOLS 1...Flange material, 2...Pipe material, 3...Through hole, 4...Mold, 5...Annular recess, 6...Sealing material, 11...Abutment surface with other flange material, 1
3 to 16...Excess thickness, 21...Pipe material tip, 2
2... Side part of pipe material.
Claims (1)
内径を有する貫通穴及び他のフランジ材と衝合す
る衝合面を備えたフランジ材との接合方法におい
て、前記フランジ材の前記貫通穴内に前記パイプ
材を内接嵌挿させ、その端部を前記衝合面と略面
一になるようにした後、前記貫通穴より大径の環
状凸部を備えた成形型を前記フランジ材の前記衝
合面に押圧させて該衝合面の前記貫通穴の外側に
環状凹部を形成するとともに、該環状凹部形成時
に前記フランジ材内部に発生する余肉の一部を前
記貫通穴側に膨出させ、前記フランジ材と前記パ
イプ材との間に接触圧を発生させて、前記パイプ
材の前記フランジ材からの抜け方向の移動を阻止
するようにしたことを特徴とするパイプ材とフラ
ンジ材の接合方法。1. In a method for joining a pipe material and a flange material having a through hole having an inner diameter that allows the pipe material to be internally inserted and an abutment surface that abuts against another flange material, the inside of the through hole of the flange material After fitting the pipe material internally into the flange material so that its end is substantially flush with the abutting surface, a mold having an annular convex portion with a diameter larger than the through hole is inserted into the flange material. An annular recess is formed on the outside of the through hole in the abutting surface by pressing the abutting surface, and a part of the excess material generated inside the flange material is expanded toward the through hole when forming the annular recess. A pipe material and a flange material, characterized in that a contact pressure is generated between the flange material and the pipe material to prevent the pipe material from moving in the direction of removal from the flange material. joining method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1151427A JPH0318446A (en) | 1989-06-13 | 1989-06-13 | Method for joining pipe material and flange material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1151427A JPH0318446A (en) | 1989-06-13 | 1989-06-13 | Method for joining pipe material and flange material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318446A JPH0318446A (en) | 1991-01-28 |
| JPH0570533B2 true JPH0570533B2 (en) | 1993-10-05 |
Family
ID=15518384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1151427A Granted JPH0318446A (en) | 1989-06-13 | 1989-06-13 | Method for joining pipe material and flange material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318446A (en) |
-
1989
- 1989-06-13 JP JP1151427A patent/JPH0318446A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0318446A (en) | 1991-01-28 |
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