[go: up one dir, main page]

DE3005153A1 - Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s) - Google Patents

Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s)

Info

Publication number
DE3005153A1
DE3005153A1 DE19803005153 DE3005153A DE3005153A1 DE 3005153 A1 DE3005153 A1 DE 3005153A1 DE 19803005153 DE19803005153 DE 19803005153 DE 3005153 A DE3005153 A DE 3005153A DE 3005153 A1 DE3005153 A1 DE 3005153A1
Authority
DE
Germany
Prior art keywords
pipe
welding
pipes
rotated
submerged arc
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.)
Ceased
Application number
DE19803005153
Other languages
German (de)
Inventor
Ing.(grad.) Günter 4355 Waltrop Krämer
Dietrich Dr.-Ing. 4000 Düsseldorf Russell
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to DE19803005153 priority Critical patent/DE3005153A1/en
Publication of DE3005153A1 publication Critical patent/DE3005153A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/02Seam welding; Backing means; Inserts
    • B23K9/032Seam welding; Backing means; Inserts for three-dimensional seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)

Abstract

A branch pipe is to be welded onto a main pipe or a cylindrical vessel. Pipe is tack welded onto the pipe or vessel, and then a rotor is inserted in pipe and used to rotate a welding burner through 360 deg. to make the weld. During the welding operation, the vessel or pipe is rotated on its axis through an arc of 180 deg. so the welding zone below burner is always in a horizontal position. The result is that the molten weld pool and its powder covering do not run away when pipes have an outside dia. ratio d/D above 0.6; where d is the outside dia. of the branch pipe and D is the o.d. of the main pipe. With the invention, d/D can almost equal 1.0.

Description

Die Erfindung betrifft ein Verfahren zum Anschweißen von Abzweigstutzen anThe invention relates to a method for welding branch connections at

Pn:re oder zylindrische Behälter nit einer. @nterpulverschweißbrenner, welcher mittels einer auf den Stutzen aufgesetzten Drehvorrichtung parallel zur Stutzenachse entlang der Durchdringungslinie geführt wird.Pn: right or cylindrical container with one. @ nter powder welding torch, which by means of a rotating device placed on the nozzle parallel to the Nozzle axis is guided along the penetration line.

ei diesem bekannten Verfahren wird der Stutzen nach den Anpassen auf das Rohr aufgesetzt, geheftet und zunächst dessen @urzellage von Hand geschweißt. Dann wird der Stutzen senkrechtstehend aufgespannt und die Drehvorrichtung für den Schweißbrenner auf den Stutzen befestigt. Anschließend wird der Schweißvorgang einneleitet. Der Schweißkopf dreht sich dabei un die vertikale Stutzenachse und folgt der Durchdringungslinie, wobei er sich entsprechend letzterer hebt und senkt. Lr beschreibt also Kurven, die aus 1er Dreh- und @ubbewegung resultieren und die über ein Getriebe miteinander gekoppelt sind.With this known method, the nozzle is opened after the adjustment the pipe is put on, tacked and first of all its root layer welded by hand. Then the nozzle is clamped vertically and the rotating device for the Welding torch attached to the nozzle. The welding process is then initiated. The welding head rotates along the vertical nozzle axis and follows the penetration line, whereby it rises and falls according to the latter. Lr describes curves, which result from 1 rotation and @ub motion and which are connected to each other via a gear are coupled.

Der @it diesem bekannten Verfahren bestehende Machteil besteht darin, daß die Durchmesser der einzuschweifenden Abzweigstutzen einen Verhaltniswert von d/D = max. 0,6 nicht überschreiten können (d=Stutzendurchmesser, D= Rohrdurchmesser). Bei größeren Stutzendurchmessern würden nämlich das Schweißbad und die Pulverabdeckung aus den seitlichen Schweißfugen der Durchdringungslinie ablaufen. The disadvantage of this known method is that that the diameter of the branch pipe to be looped has a ratio of d / D = max. 0.6 (d = nozzle diameter, D = pipe diameter). In the case of larger nozzle diameters, the weld pool and the powder cover would be run out of the side welding joints of the penetration line.

Der Frfindung liegt die Aufgabe zugrunde, ein Verfahren zu schaffen, mit welchen die angegebenen nachteile vermieden und Abzweigstutzen angeschweißt werden können, deren Durchmesserverhältnis wesentlich größer ist und die bis zu einem Wert von nahezu d=1 betragen kann.The invention is based on the task of creating a process with which the specified disadvantages are avoided and branch connections are welded on can be whose diameter ratio is much larger and which up to can be a value of almost d = 1.

D !)ie Lösung der rufgabe ergibt sich aus dem Patentanspruch. D!) He solution of the task results from the patent claim.

In den Zeichnungen ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawings, an embodiment of the invention is shown.

Es zeigen: Fig. 1 die Schweißeinrichtung von der Seite, Fig. 2 eine stirnseitige Ansicht, Fir. 3a - 3c verschiedene Schweißpositionen.They show: FIG. 1 the welding device from the side, FIG. 2 a frontal view, Fir. 3a - 3c different welding positions.

Pas Rohr 1, an welchen der Abzweigstutzen 2 angeschweißt werden soll, ist einseitig in der Drehvorrichtung 3 eingespannt und ruht auf dem Rollenbock 4. Nach dem in bekannter Weise erfolgenden Aufsetzen, Anheften und Festspannen des Stutzens 2 wird die Drehvorrichtung 5 für den Schweißbrenner 6 mit seiner Seitenverstellung 7 und der Hähenverstellung 8 in etenfalls bekannter Meise auf dem Stutzen 2 befestigt. Der Schweißdraht 9 wird dem Schweißbrenner von der Drahttrommel 19 zugeführt.Pas pipe 1, to which the branch connection 2 is to be welded, is clamped on one side in the rotating device 3 and rests on the roller block 4. After putting on, tacking and tightening the in a known manner Connector 2 is the rotating device 5 for the welding torch 6 with its side adjustment 7 and the height adjustment 8 attached to the socket 2 in some known tit. The welding wire 9 is fed from the wire drum 19 to the welding torch.

Gemäß Fig. 3a werden der Stutzen 2 durch Drehen des Rohres 1 zunachst in eine annähernd waagerechte Position und der Schweißbrenser 6 in seine Ausgangsstellung gebracht, worauf der Schweißvorgang beginnt. Wahrend der Schweißbrenner langsam den Stutzen unkreist und dabei der Purchdringungslinie folgt, wird das Rohr mit entsprechender Geschwindigkeit um seine @angsachse @edreht, und zwer in der Weise, daß die momentane Schweißstelle in etwa waalerechter Lage bleibt. In Fiy. 3h ist die Mittelstellung und in Fig. 3c die Endlage dargestellt, welche nach einer Rohrundrekung von etwa 130° erreicht ist.According to FIG. 3 a, the connecting piece 2 is initially made by rotating the tube 1 into an approximately horizontal position and the welding torch 6 into its starting position brought, whereupon the welding process begins. While the welding torch slowly If the nozzle is not circled and follows the purchase line, the pipe is with corresponding speed around its @ axis @ rotated, and in such a way, that the current welding point remains in an approximately horizontal position. In Fiy. 3h is the middle position and in Fig. 3c the end position is shown, which after a pipe unrection of about 130 ° is reached.

Die Abstimmung bzw. Regelung von Drehvorrichtung 3 für das Rohr 1 und der Drehvorrichtung 5 für den Schweißbrenner 6 kann mit üblichen Mitteln erfolgen. vorzugsweise unter Verwendung von @ikroprozessoren.The coordination or regulation of the rotating device 3 for the pipe 1 and the rotating device 5 for the welding torch 6 can be done by conventional means. preferably using microprocessors.

Claims (1)

Verfahren zun Anschweißen von Abzweigstutzen an Rohre oder zylindrische Behalter Patentanspruch Verfahren zum Anschweißen von Abzweigstutzen an Rohre oder zylindrische 3ehälter mit einer Unterpulverschweißbrenner, welcher mittels einer auf den Stutzen aufgesetzten Drehvorrichtung parallel zur Stutzenachse entlang der Durchdringungslinie geführt wird, d a d u r c h g e k e n n z e i c h n e t, daß während des Schweißens das Rohr oder cler Behalter um seine Längsachse und um einen Winkel von etwa 130. gedreht und die jeweilige Schweißstelle unter den Schweißkopf in eine etwa waagerechte Position gebracht wird.Process for welding branch nozzles to pipes or cylindrical ones Container claim method for welding branch pieces to pipes or cylindrical 3 container with a submerged arc welding torch, which by means of a Rotating device placed on the nozzle parallel to the nozzle axis along the Penetration line is guided, d u r c h e k e n n n n z e i c h n e t that during welding the tube or container about its longitudinal axis and about one Angle of about 130th rotated and the respective welding point under the welding head is brought into an approximately horizontal position.
DE19803005153 1980-02-08 1980-02-08 Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s) Ceased DE3005153A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803005153 DE3005153A1 (en) 1980-02-08 1980-02-08 Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803005153 DE3005153A1 (en) 1980-02-08 1980-02-08 Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s)

Publications (1)

Publication Number Publication Date
DE3005153A1 true DE3005153A1 (en) 1981-08-13

Family

ID=6094394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803005153 Ceased DE3005153A1 (en) 1980-02-08 1980-02-08 Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s)

Country Status (1)

Country Link
DE (1) DE3005153A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060382A1 (en) * 1981-03-13 1982-09-22 Klöckner-Werke Aktiengesellschaft Process and appliance for welding two hollow bodies along their intersection curves
FR2549406A1 (en) * 1983-07-22 1985-01-25 Marseille Provence Atel Chanti METHOD AND MACHINES FOR AUTOMATICALLY SOLDING OR CUTTING THE JOINT BETWEEN A MAIN TUBE AND A SECONDARY TUBE IN DERIVATION
DE102009043021B3 (en) * 2009-09-28 2011-03-03 Haane Industriedesign Gmbh Welding pipe socket to tubular workpiece by welding device, where welding device comprises a base, an arm with arm portions having successive and mutually rotatable arm portions, a support connecting base with arm, and a welding tool
CN103949788A (en) * 2014-05-04 2014-07-30 江联重工股份有限公司 Assembling and welding process of small eccentric spherical tank flange and spherical plate
CN103962694A (en) * 2014-05-04 2014-08-06 江联重工股份有限公司 Small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding method
DE102015206044A1 (en) 2015-04-02 2016-10-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Welding arrangement for permanently joining a first tubular component with a second component

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060382A1 (en) * 1981-03-13 1982-09-22 Klöckner-Werke Aktiengesellschaft Process and appliance for welding two hollow bodies along their intersection curves
FR2549406A1 (en) * 1983-07-22 1985-01-25 Marseille Provence Atel Chanti METHOD AND MACHINES FOR AUTOMATICALLY SOLDING OR CUTTING THE JOINT BETWEEN A MAIN TUBE AND A SECONDARY TUBE IN DERIVATION
EP0133411A1 (en) * 1983-07-22 1985-02-20 Societe Nouvelle Des Ateliers Et Chantiers Du Havre Process and machines for automatically welding or cutting the joint between a main pipe and a secondary branch pipe
US4659903A (en) * 1983-07-22 1987-04-21 Societe Nouvelle Des Ateliers Et Chantiers Du Havre Process and machines for automatically welding or cutting the junction point between a main pipe and a secondary branch pipe
DE102009043021B3 (en) * 2009-09-28 2011-03-03 Haane Industriedesign Gmbh Welding pipe socket to tubular workpiece by welding device, where welding device comprises a base, an arm with arm portions having successive and mutually rotatable arm portions, a support connecting base with arm, and a welding tool
CN103949788A (en) * 2014-05-04 2014-07-30 江联重工股份有限公司 Assembling and welding process of small eccentric spherical tank flange and spherical plate
CN103962694A (en) * 2014-05-04 2014-08-06 江联重工股份有限公司 Small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding method
CN103949788B (en) * 2014-05-04 2016-04-06 江联重工股份有限公司 The eccentric little flange of a kind of spherical tank and ball sheet assembly welding technique
DE102015206044A1 (en) 2015-04-02 2016-10-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Welding arrangement for permanently joining a first tubular component with a second component
WO2016156039A1 (en) 2015-04-02 2016-10-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Welding assembly for permanent joining of a first tubular component with a second component
US10646967B2 (en) 2015-04-02 2020-05-12 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Welding assembly for permanent joining of a first tubular component with a second component

Similar Documents

Publication Publication Date Title
DE3225125C1 (en) Process for welding plating vertical walls
DE69902697T2 (en) METHOD AND DEVICE FOR WELDING TUBES
DE2342648C3 (en) Welding torch and methods for underwater welding
DE2830037C2 (en) Arc fusion welding process for connecting turbine blades to end plates
DE3005153A1 (en) Submerged arc welding of branch pipes onto main pipes - where main pipe is rotated through semicircle so molten weld pool is always horizontal to preclude run-out(s)
DE2623665C3 (en) Method and device for cleaning an agitator arranged in the axis of a preferably cylindrical container and rotatable about this axis
DE69901422T2 (en) Process for making a welded joint
DE2948333C2 (en) Device for multi-bead welding of two workpieces rotating around a common center line
DE3109618A1 (en) METHOD AND DEVICE FOR WELDING TWO LENGTHS OF THEIR SPATIAL PENETRATION CURVE TO BE WELDED HOLLOW BODIES
DE2132143A1 (en) METHOD AND DEVICE FOR THE PRODUCTION OF WELD SEAMS IN TRANSVERSE POSITION
DE3313230A1 (en) Process for the automatic or manual welding of connection stubs to elements with curved outer surfaces
DE952858C (en) Method of feeding rod-shaped material to a peeling machine
DE3613706C1 (en) Method of welding a stud to a metallic parent body, apparatus for carrying out the method, and stud for use during the method
AT283861B (en) Device for producing circumferential seams for connecting large metal pipe sections
DE2915189A1 (en) AUTOMATIC WELDING UNIT FOR FIXED PARTS
DE2534278C2 (en) Tungsten inert gas welding process
DE899301C (en) Iron container and method and apparatus for attaching a liner thereto
DE671720C (en) Process for rust protection of gas container inner surfaces
DE606017C (en) Device for the joint-free welding of smooth pipes of large diameter and large diameter and large wall thickness
DE733744C (en) Method and device for manufacturing well filters
CH441543A (en) Method and device for arc welding two metal sheets
DE1817042C (en) Method and device for regulating the torch and / or the welding wire feed during fusion welding of butt joints, in particular butt joints
AT268016B (en) Arc welding process and welding head for welding and overlay welding of metals and alloys
DE8431593U1 (en) Welding device for pipe bends in particular
DE526252C (en) Process for the interior lining of pipe branches or similar fittings

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection