DE909127C - Process for pressure welding pipe ends to a plate at right angles to the pipe - Google Patents

Process for pressure welding pipe ends to a plate at right angles to the pipe

Info

Publication number
DE909127C
DE909127C DEA14660D DEA0014660D DE909127C DE 909127 C DE909127 C DE 909127C DE A14660 D DEA14660 D DE A14660D DE A0014660 D DEA0014660 D DE A0014660D DE 909127 C DE909127 C DE 909127C
Authority
DE
Germany
Prior art keywords
pipe
plate
pressure welding
right angles
tube
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
Application number
DEA14660D
Other languages
German (de)
Inventor
E H Bylin
Hans Waengsjoe
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.)
ALLMAENA SVENSKA ELEK SKA AKTI
Original Assignee
ALLMAENA SVENSKA ELEK SKA AKTI
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 ALLMAENA SVENSKA ELEK SKA AKTI filed Critical ALLMAENA SVENSKA ELEK SKA AKTI
Application granted granted Critical
Publication of DE909127C publication Critical patent/DE909127C/en
Expired 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Bei der Druckschweißung von Rohren gegen ein ebenes Werkstück hat man zur Erleichterung der Schweißung das Ende des Rohres abgeschrägt. Es hat sich bei dieser Schweißung jedoch gezeigt, daß das Rohr überhitzt wird, sofern nicht die Dicke des Rohres mindestens 11/z- bis 2mal so groß ist wie die Dicke der Platte, mit der das Rohr verschweißt wird. In vielen Fällen ist es jedoch notwendig, das Rohr mit einem Werkstück mit bedeutend größerer Dicke im Verhältnis zur Dicke des Rohres zu verschweißen. Dies wird gemäß der Erfindung dadurch ermöglicht, daß das Rohr am Ende umgebördelt und bei der Schweißung von stromführenden Klemmbacken umfaßt wird, die bis an das Ende des Rohres herunterreichen und sich genau der Form der Umbördelung anschmiegen. Die Erfindung ist besonders verwendbar zur Schweißung von Flanschen an Rohre für verschiedene Zwecke.When pressure welding pipes against a flat workpiece the end of the pipe is beveled to facilitate welding. It has however, shown in this weld that the pipe will overheat unless it is the thickness of the tube is at least 11 / z- to 2 times as great as the thickness of the plate, with which the pipe is welded. In many cases, however, it is necessary to do this Pipe with a workpiece of significantly greater thickness in relation to the thickness of the Pipe to be welded. This is made possible according to the invention in that the Tube flanged at the end and encompassed by current-carrying clamping jaws when welding that reach down to the end of the tube and exactly match the shape of the Hug the flange. The invention is particularly useful for welding Flanges on pipes for various purposes.

Auf der Zeichnung zeigt Fig. i die bisher gebräuchliche Art einer solchen Schweißung. i bezeichnet das Rohrende, das von den stromführenden Klemmbacken 2 umfaßt wird. Das Rohr ist an dem gegen die Platte gewendeten Ende mit einer Abschrägung 3 versehen, die mit ihrer Schneide auf der Platte 4 aufliegt, mit der das Rohr zusammengeschweißt werden soll, und 5 bezeichnet die andere Schweißelektrode.In the drawing, Fig. I shows the previously common type of a such weld. i denotes the end of the pipe that is connected to the live clamping jaws 2 is included. The end of the tube facing the plate has a bevel 3 provided, which rests with its cutting edge on the plate 4 with which the pipe is welded together is to be, and 5 indicates the other welding electrode.

In Fig. 2 ist das Schweißverfahren entsprechend der Erfindung dargestellt, wobei die entsprechenden Teile mit den gleichen Bezugsziffern wie in der vorigen Figur bezeichnet sind. Das Rohr besitzt in diesem Fall eine so weit getriebene Umbörde-Jung 6, daß die Endfläche des Rohres einen spitzen Winkel mit einer Ebene senkrecht zur Rohrachse bildet, und die Klemmbacken 2 sind so ausgebildet, @d;aß sie- sich dieser Umbördelung bi-s hinunter zum Rohrende anschmiegen. Durch den genauen Anschluß der Klemmbacken 2 an das Rohrende wird erreicht, daß das Rohr so weit gekühlt wird, daß die Erwärmungsverhältnisse im Rohr ungefähr die gleichen werden wie in der Platte 4, was auch seinen Grund darin haben kann, daß der Strom einen verhältnismäßig kurzen Weg zwischen den Schweißelektroden im Verhältnis zu dem in Fig. i gezeigten Verfahren erhält. Außerdem bringt das erfindungsgemäße Verfahren den Vorteil mit sich, daß eine Verschiebung des Rohres in Klemmbacken nicht stattfinden kann.In Fig. 2 the welding process according to the invention is shown, the corresponding parts having the same reference numerals as in the previous one Figure are designated. In this case, the pipe has a Umbörde-Jung that has been pushed so far 6 that the end face of the tube forms an acute angle with a plane perpendicular to the Forms the pipe axis, and the clamping jaws 2 are designed so that they ate this Fit the flare down to the end of the pipe. Through the exact connection of the Clamping jaws 2 on the pipe end is achieved that the pipe is cooled to such an extent that that the heating conditions in the tube are approximately the same as in the plate 4, which may also be due to the fact that the current is comparatively short Distance between welding electrodes in relation to the method shown in Fig. I receives. In addition, the inventive method has the advantage that a displacement of the pipe in the clamping jaws cannot take place.

Claims (1)

PATENTANSPRUCH: Verfahren zur Druckschweißung eines Rohrendes an ein ebenes Werkstück, beispielsweise an einen Flansch, dadurch gekennzeichnet, daß das Rohr an seinem Ende eine so weit getriebene Umbördelung aufweist, daß die Endfläche des Rohres einen spitzen Winkel mit der Ebene senkrecht zur Rohrachse bildet, und daß die Klemmbacken der das Rohr umgreifenden Schweißelektrode so ausgebildet sind, daß sie sich genau der am Rohrende gemachten Umbördelung anschmiegen.PATENT CLAIM: Process for pressure welding a pipe end to a flat workpiece, for example on a flange, characterized in that the Tube has at its end a flange driven so far that the end face of the pipe forms an acute angle with the plane perpendicular to the pipe axis, and that the clamping jaws of the welding electrode encompassing the pipe are designed so that they cling to the flange made at the end of the pipe.
DEA14660D 1944-05-27 1945-05-27 Process for pressure welding pipe ends to a plate at right angles to the pipe Expired DE909127C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE909127X 1944-05-27

Publications (1)

Publication Number Publication Date
DE909127C true DE909127C (en) 1954-04-15

Family

ID=20381485

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA14660D Expired DE909127C (en) 1944-05-27 1945-05-27 Process for pressure welding pipe ends to a plate at right angles to the pipe

Country Status (1)

Country Link
DE (1) DE909127C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007052324A1 (en) * 2007-10-31 2009-05-07 Rauschnabel, Eberhard, Dr.-Ing. Method for connecting ring area of a thin walled hollow shaft with a massive component through resistance welding, comprises selecting unusable parameters during welding and machinably removing welding beads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007052324A1 (en) * 2007-10-31 2009-05-07 Rauschnabel, Eberhard, Dr.-Ing. Method for connecting ring area of a thin walled hollow shaft with a massive component through resistance welding, comprises selecting unusable parameters during welding and machinably removing welding beads

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