WO2003047804A1 - Procede de soudage en bout d'un corps tubulaire et corps tubulaire soude - Google Patents

Procede de soudage en bout d'un corps tubulaire et corps tubulaire soude Download PDF

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Publication number
WO2003047804A1
WO2003047804A1 PCT/JP2001/010554 JP0110554W WO03047804A1 WO 2003047804 A1 WO2003047804 A1 WO 2003047804A1 JP 0110554 W JP0110554 W JP 0110554W WO 03047804 A1 WO03047804 A1 WO 03047804A1
Authority
WO
WIPO (PCT)
Prior art keywords
butt
welding
pipe
welded
pipes
Prior art date
Application number
PCT/JP2001/010554
Other languages
English (en)
Japanese (ja)
Inventor
Yoshiyuki Onogi
Original Assignee
Yoshiyuki Onogi
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 Yoshiyuki Onogi filed Critical Yoshiyuki Onogi
Priority to AU2002222572A priority Critical patent/AU2002222572A1/en
Priority to PCT/JP2001/010554 priority patent/WO2003047804A1/fr
Publication of WO2003047804A1 publication Critical patent/WO2003047804A1/fr

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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles

Definitions

  • the present invention relates to a butt welding method for pipe materials.
  • An object of the present invention is to eliminate the need for upward welding when butt-welding pipes at a construction site or the like, by enabling welding from about the lower half of the butt portion from inside the pipe. Disclosure of the invention
  • an opening is provided at or near one or both ends of a pipe material which meets at a butt portion, and the lower portion of the butt portion is welded from the inside of the tube material by using the opening, and the butt portion is joined. No upward welding is required for the lower half of the outer periphery.
  • FIG. 1 to 4 are views showing an embodiment of a butt welding method for a pipe material according to the present invention.
  • FIG. 1 shows that when the pipes 1 and 2 are connected to each other by butt welding at a butt portion 3, an opening 4 is provided by cutting off a pipe piece 5 from the upper end of the pipe end of the pipe 1.
  • the lower half of the butt 3 is butt-welded approximately downward from the inside of the tubes 1 and 2.
  • the necessary bevels should be recorded in advance, and if necessary, a backing should be applied to the lower part of the outer circumference of Fig. 2.
  • Applied to Part 4 shows all tangents between 5 and pipes 1 and 2, and the unwelded portion of butt 3 welded generally downwards. Also in this case, the necessary bevels are reserved in advance.
  • a handle may be attached to the tube piece 5 for easy handling.
  • 5 may be connected to the pipe 1 with a simple hinge in a state where it is applied to the opening 4 so that material transport and material management before starting the welding work are easy.
  • FIG. 3 shows that when the pipes 1 and 2 are connected to each other by butt welding at the butt 3, the upper part near the pipe end of the tub 1 is cut off without touching the welding line of the butt 3. This shows a place where the opening 4a is provided.
  • the lower half of the butt 3 is butt-welded generally downward from the inner sides of the pipes 1 and 2.
  • necessary bevels should be reserved in advance, and if necessary, backing should be applied to the lower part of the outer periphery of 3.
  • the butt welding of the upper half of the butt 3 is also made to proceed substantially downward.
  • necessary bevels are reserved in advance.
  • a pipe piece 5a or a piece having a similar shape is applied to the opening 4a, and a tangent line between 5a and 4a is welded substantially downward so as to close the opening 4a.
  • the necessary bevels should be reserved in advance.
  • 5a may be connected to the pipe 1 with a simple hinge in a state where it is applied to the opening 4a so that material transportation and material management before starting the welding work are easy.
  • FIG. 4 shows that when the pipes 1 and 2 are connected to each other by butt welding at the butt 3, the upper part near the pipe end of the tub 1 is formed in an arbitrary shape without touching the welding line of the butt 3.
  • a short pipe 6 having the same cross-section and having a flange 7 attached to the other end in advance is connected to the cut-out opening 4b by fillet welding or the like.
  • the opening 8 of the flange 7 the lower half of the butt 3 is butt-welded approximately downward from the inside of the pipes 1 and 2.
  • the necessary bevels are reserved in advance, and if necessary, the lower part of the outer circumference of 3 is backed.
  • the butt welding of the upper half of the butt 3 is also made to proceed substantially downward. Also in this case, necessary bevels are reserved in advance. Then, the lid 9 is attached to the plunger 7 with bolts and nuts.

Landscapes

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

Abstract

L'invention concerne un procédé de soudage de la partie jointive inférieure d'un corps tubulaire à partir de l'intérieur, ce procédé reposant sur l'utilisation d'une ouverture (4) située au niveau d'une ou des deux extrémités du tube faisant face à une partie jointive (3) avoisinante, lorsqu'on soude les éléments de tube (1, 2), et qu'on les joint pratiquement dans le sens horizontal. Au moment de la réalisation du soudage en bout d'un élément tubulaire sur un site de construction, on facilite ainsi le travail de soudage, parce que le soudage en montant n'est pas nécessaire et qu'on peut améliorer la qualité du travail de soudage sans avoir recours à une technologie avancée. En outre, on peut minimiser la hauteur d'une base de support, dans le cas de travaux de canalisation au sol, étant donné que le soudage en montant n'est pas requis. De manière similaire, on peut réduire le volume de sable et de sol résultant d'un trou creusé en cas de travaux d'enfouissement souterrain, et on peut économiser les coûts du travail de canalisation.
PCT/JP2001/010554 2001-12-04 2001-12-04 Procede de soudage en bout d'un corps tubulaire et corps tubulaire soude WO2003047804A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002222572A AU2002222572A1 (en) 2001-12-04 2001-12-04 Butt welding method of tubular body and welded tubular body
PCT/JP2001/010554 WO2003047804A1 (fr) 2001-12-04 2001-12-04 Procede de soudage en bout d'un corps tubulaire et corps tubulaire soude

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/010554 WO2003047804A1 (fr) 2001-12-04 2001-12-04 Procede de soudage en bout d'un corps tubulaire et corps tubulaire soude

Publications (1)

Publication Number Publication Date
WO2003047804A1 true WO2003047804A1 (fr) 2003-06-12

Family

ID=11737996

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/010554 WO2003047804A1 (fr) 2001-12-04 2001-12-04 Procede de soudage en bout d'un corps tubulaire et corps tubulaire soude

Country Status (2)

Country Link
AU (1) AU2002222572A1 (fr)
WO (1) WO2003047804A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4845473A (fr) * 1971-10-14 1973-06-29
JPH0197738A (ja) * 1987-10-09 1989-04-17 Kajima Corp 閉鎖型断面である柱梁の接合方法
JPH07105374A (ja) * 1993-10-08 1995-04-21 Daiichi Sokuhan Seisakusho:Kk 画像位置検出装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4845473A (fr) * 1971-10-14 1973-06-29
JPH0197738A (ja) * 1987-10-09 1989-04-17 Kajima Corp 閉鎖型断面である柱梁の接合方法
JPH07105374A (ja) * 1993-10-08 1995-04-21 Daiichi Sokuhan Seisakusho:Kk 画像位置検出装置

Also Published As

Publication number Publication date
AU2002222572A1 (en) 2003-06-17

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