JPS58192693A - Shape of butt welding groove of pipes - Google Patents

Shape of butt welding groove of pipes

Info

Publication number
JPS58192693A
JPS58192693A JP7633082A JP7633082A JPS58192693A JP S58192693 A JPS58192693 A JP S58192693A JP 7633082 A JP7633082 A JP 7633082A JP 7633082 A JP7633082 A JP 7633082A JP S58192693 A JPS58192693 A JP S58192693A
Authority
JP
Japan
Prior art keywords
pipe
shape
welding
end part
stub
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
Application number
JP7633082A
Other languages
Japanese (ja)
Other versions
JPH0223278B2 (en
Inventor
Koji Ishiwatari
石渡　幸二
Hiroaki Nozaki
野崎　広昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP7633082A priority Critical patent/JPS58192693A/en
Publication of JPS58192693A publication Critical patent/JPS58192693A/en
Publication of JPH0223278B2 publication Critical patent/JPH0223278B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE:To provide a titled shape of a welding groove which enables the exact and easy mating of beveled ends and tack welding in butt welding of pipes, by forming the beveled end part of one of the pipes to be butt welded to a female shape and forming the beveled end part of the other pipe to a male shape conforming to said female shape. CONSTITUTION:The groove of the case in which, for example, a butting part 3 is inclined with respect to the axial center of a pipe in butt welding of a pipe 1 and a nozzle stub 2 is formed to the following shape: Bevels 4 and 5 are formed by edge preparation respectively on the inside circumferential surface in the joint part of the pipe 1 and the inside circumferential surface in the joint part of the stub 2. The beveled end part 6a on the pipe 1 side is formed to a convergent male shape and the beveled end part 6b on the stub 2 side is formed to a female shape conforming to said male shape. The end part 6a on the pipe 1 side is butted and fitted to the end part 6b on the stub 2 side and the bevels 4, 5 are welded successively from the inside by a welding machine 7 in the stage of welding the pipe 1 to the stub 2. The mating of the beveled ends and tack welding are accomplished easily and exactly by the above-mentioned method even without any special jig.

Description

【発明の詳細な説明】 本発明はパイプの突合せ溶接を行うに際し、パイプの溶
接継手部に形成する開先形状の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improving the shape of a groove formed in a weld joint of a pipe when butt welding the pipe.

パイプの突合せ部がパイプ軸芯に対し傾斜し、しかもパ
イプの外側での溶接作業に必要な空間のない場合のパイ
プ突合せ溶接においては、次のような問題がある。The following problems arise in pipe butt welding when the butt part of the pipe is inclined with respect to the pipe axis and there is no space necessary for welding on the outside of the pipe.

（１）　　開先合せが難しい。(1) Difficult to align grooves.

（１１）仮付溶接時にずれ落ちや変形が生じる。(11) Slip-off and deformation occur during tack welding.

（ｉｌｉ）　　開先合せのための治具及び仮付溶接時に
・くイブを固定する治具はパイプ外側に作業空間がない
と１史用できないので、結局使用できず、不完全な溶接
となる。(ili) The jig for aligning the grooves and the jig for fixing the groove during tack welding cannot be used for a single period unless there is a work space on the outside of the pipe, so they cannot be used, resulting in incomplete welding. .

本発明は以上のような条件でのパイプ突合せ溶接におけ
る開先合せや仮溶接を正確且つ容易になし得るようにす
ることを目的としてなしたものである。The present invention has been made with the object of making it possible to accurately and easily perform groove alignment and temporary welding in pipe butt welding under the above conditions.

以下本発明の実施例を図面により説明する。Embodiments of the present invention will be described below with reference to the drawings.

第１図はパイプ（１）と管台（２）の突合せ溶接におい
て突合せ部（３）がパイプ軸芯に対し傾斜している場合
の開先形状として本発明を実施した例を示すもので、パ
イプ（１）の継手部内周面と管台（２）の継手部内周面
の夫々に開先加工を施して開先（４）醍び（５）を形成
すると共に、パイプ側の開先端部（６α）を先細り状の
雌形状とし、又管台側の開先端部（６ｂ）を前記雌形状
に適合する雌形状としている。なお（７）は溶接機であ
る。FIG. 1 shows an example in which the present invention is implemented as a groove shape when the butt part (3) is inclined with respect to the pipe axis in butt welding of a pipe (1) and a nozzle (2). Bevel processing is performed on the inner circumferential surface of the joint of the pipe (1) and the inner circumferential surface of the joint of the nozzle stub (2) to form a bevel (4) and a groove (5). (6α) has a tapered female shape, and the open end portion (6b) on the nozzle side has a female shape that matches the female shape. Note that (7) is a welding machine.

断る構成においてパイプ（１）を管台（２）に溶接する
場合は、パイプ側の開先端部（６α）を管台側の開先端
部（６ｂ）を突合せ嵌合して、溶接機（７）により開先
（４）　（５）を内方から溶接加工していく。When welding the pipe (1) to the nozzle stub (2) in a configuration where no ) to weld grooves (4) and (5) from the inside.

このようにパイプ（１）と管台（２）の継手部を雌雄形
状によって嵌合し固定できるようにしたので、特別の治
具がなくても開先合せ及び仮付溶接を容易且つ正確に行
うことができる。又開先（４）　（５）を継手部の内周
面に設けて内方から溶接していくので、溶接による継手
部の変形により開先角度が変わることがなく、又継手部
の横方向（パイプの軸方向）収縮も均一であるため、溶
接によるパイプの軸芯の倒れがなく、更にはＴ　Ｉ　Ｇ
溶接による良好な裏波溶接が得られる。In this way, the joints of the pipe (1) and nozzle (2) can be fitted and fixed by male and female shapes, making groove alignment and tack welding easy and accurate without the need for special jigs. It can be carried out. Also, since the grooves (4) and (5) are provided on the inner peripheral surface of the joint and welded from the inside, the groove angle will not change due to deformation of the joint due to welding, and the groove angle will not change in the lateral direction of the joint. Since the contraction (in the axial direction of the pipe) is uniform, there is no collapse of the pipe axis due to welding, and furthermore, T I G
Good Uranami welding can be obtained by welding.

第２図は本発明の他の実施例を示すもので、パイプ（１
）の開先端部（８ａ）を雌形の段付形状とし、管台（２
）の開先端部（８ｂ）を前記雌形の段付形状に嵌合する
雌形の段付形状としている。その他の点では第１図の構
成と同一であり、第１図と同一符号は同一のものを示し
ている。FIG. 2 shows another embodiment of the present invention, in which a pipe (1
) is made into a female stepped shape, and the nozzle base (2
) has a female stepped shape that fits into the female stepped shape. In other respects, the configuration is the same as that in FIG. 1, and the same reference numerals as in FIG. 1 indicate the same parts.

又第３図は突合せ部（３）をパイプ軸芯に対し直角とし
た場合に本発明を実施した例を示し、ここではパイプ（
１）の開先端部（９ａ）を雌形の段付形状とし、管台（
２）の開先端部（９ｂ）を前記雌形の段付形状に嵌合す
る雌形の段付形状としている。Further, FIG. 3 shows an example in which the present invention is implemented when the abutment part (3) is made perpendicular to the pipe axis; here, the pipe (
The open end (9a) of 1) is made into a female stepped shape, and the nozzle holder (
The open end portion (9b) of 2) has a female stepped shape that fits into the female stepped shape.

なお前記各実施例では、本発明をパイプと管台の突合せ
溶接に関係づけて説明したが、本発明はこの他パイプ同
志を突合せ溶接する場合のパイプ開先形状として実施で
きること、開先を従来と同様に継手部外周面に設けて実
施してもよいこと、その他本発明の要旨を逸脱しない範
囲において種々変更を加え実施できること等は勿論であ
る。In each of the above embodiments, the present invention has been explained in relation to butt welding of a pipe and a nozzle, but the present invention can also be implemented as a pipe groove shape when butt welding pipes together, and the groove can be changed to a conventional shape. It goes without saying that it may be implemented by providing it on the outer circumferential surface of the joint portion in the same manner as in the above, and that various modifications may be made without departing from the gist of the present invention.

本発明によれば前述したように突合せ溶接すべき一方の
パイプの開先端部と他力の開先端部をｑ４に嵌合し得る
形状としたので、 （Ｉ）パイプの突合せ部（切断角）が斜めであっても、
開先合せや仮溶接の際にパイプがずれ落ちることがなく
、従って開先合せや仮溶接を容易且つ正確に行うことが
でさる、　　　　　　１ｆｉｌ　　開先合せや仮付溶接
の際にパイプ固定冶具な要しないので、設備費用を削減
できる、（ＩＩＤバイブ外周側に作業空間を必要表しな
いので、溶接作業の簡易化を図ることかできる、等の優
れた効果を奏し得る。According to the present invention, as described above, the open end of one pipe to be butt welded and the open end of the other pipe are shaped so that they can fit into q4. (I) Butt part (cutting angle) of the pipes Even if it is diagonal,
The pipe does not fall off during groove alignment or temporary welding, so groove alignment and temporary welding can be performed easily and accurately. Since no work space is required on the outer periphery of the IID vibrator, the welding work can be simplified, and other excellent effects can be achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施例を示す断面図、第２図及び第５
図は本発明の他の実施例を示す断面図である。 （１）・・・パイプ、（２）・・・管台、（３）・・・
突合せ部、（４）（５）・・・開先、（６ａ）　（６６
）　（ａａ）　（８６）　（９α）　（９６）−・・開
先端部、（７）・・・溶接機。 特許出願人 石川島播磨重工業株式会社 特許出願人代理人FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 and FIG.
The figure is a sectional view showing another embodiment of the present invention. (1)...pipe, (2)...nozzle, (3)...
Butt part, (4) (5)...Bevel, (6a) (66
) (aa) (86) (9α) (96) --- Open end, (7) -- Welding machine. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant agent

Claims (1)

【特許請求の範囲】[Claims] １）突合せ溶接すべき一方のパイプの開先端部を雌形状
とし、他方のパイプの開先端部を前記雌形状に適合する
雌形状としたことを特徴とするパイプ突合せ溶接開先形
状。1) A pipe butt weld groove shape characterized in that the grooved end of one pipe to be butt welded has a female shape, and the opened end of the other pipe has a female shape that matches the female shape.
JP7633082A 1982-05-07 1982-05-07 Shape of butt welding groove of pipes Granted JPS58192693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7633082A JPS58192693A (en) 1982-05-07 1982-05-07 Shape of butt welding groove of pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7633082A JPS58192693A (en) 1982-05-07 1982-05-07 Shape of butt welding groove of pipes

Publications (2)

Publication Number Publication Date
JPS58192693A true JPS58192693A (en) 1983-11-10
JPH0223278B2 JPH0223278B2 (en) 1990-05-23

Family

ID=13602337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7633082A Granted JPS58192693A (en) 1982-05-07 1982-05-07 Shape of butt welding groove of pipes

Country Status (1)

Country Link
JP (1) JPS58192693A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02155591A (en) * 1988-12-06 1990-06-14 Ishikawajima Harima Heavy Ind Co Ltd Welding method for pipe joint part and welding groove part shape of pipe joint part used for method concerned
US5916457A (en) * 1994-06-02 1999-06-29 Ohmi; Tadahiro Material to be welded for butt welding, methods of cutting as well as welding the same, and a wire
JP2005329466A (en) * 2004-05-18 2005-12-02 Snecma Moteurs Tig welding method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5390133A (en) * 1977-01-20 1978-08-08 Mitsubishi Heavy Ind Ltd Method of welding pipe base
JPS5610239A (en) * 1979-07-06 1981-02-02 Nippon Steel Corp Electron beam macroanalyzer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5390133A (en) * 1977-01-20 1978-08-08 Mitsubishi Heavy Ind Ltd Method of welding pipe base
JPS5610239A (en) * 1979-07-06 1981-02-02 Nippon Steel Corp Electron beam macroanalyzer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02155591A (en) * 1988-12-06 1990-06-14 Ishikawajima Harima Heavy Ind Co Ltd Welding method for pipe joint part and welding groove part shape of pipe joint part used for method concerned
US5916457A (en) * 1994-06-02 1999-06-29 Ohmi; Tadahiro Material to be welded for butt welding, methods of cutting as well as welding the same, and a wire
JP2005329466A (en) * 2004-05-18 2005-12-02 Snecma Moteurs Tig welding method

Also Published As

Publication number Publication date
JPH0223278B2 (en) 1990-05-23

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