DE612634C - Process for welding used rails worn at the joint ends by means of the electrical resistance melting process - Google Patents
Process for welding used rails worn at the joint ends by means of the electrical resistance melting processInfo
- Publication number
- DE612634C DE612634C DEW86323D DEW0086323D DE612634C DE 612634 C DE612634 C DE 612634C DE W86323 D DEW86323 D DE W86323D DE W0086323 D DEW0086323 D DE W0086323D DE 612634 C DE612634 C DE 612634C
- Authority
- DE
- Germany
- Prior art keywords
- rail
- electrical resistance
- joint ends
- resistance melting
- worn
- 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
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
- B23K11/04—Flash butt welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
13JUIi 193513JUIi 1935
Die Erfindung bezieht sich auf ein Verfahren zum Verschweißen gebrauchter, an den Stoßenden abgefahrener Schienen mittels des elektrischen Widerstandsabschmelzverfahr ens.The invention relates to a method for welding used, to the butt ends of worn rails by means of the electrical resistance melting process ens.
Bei den bisher üblichen Verfahren werden die Schienenenden derart in die Stumpfsclnveißmaschine
eingespannt, daß die Schienen genau in gleicher Flucht zueinanderliegen. Es zeigte sich jedoch, daß auf diese
Weise keine einwandfreie Schweißung zu erzielen ist, daß vielmehr immer noch an der
Stoßstelle eine Abnutzung erkennbar bleibt.
Das Verfahren gemäß der Erfindung beseitigt den Mangel dadurch, daß die Schieneiienden
so in die Schweißmaschine eingespannt werden, daß die beiden Längsachsen der
Schienen an der Einspannstelle einen Winkel miteinander bilden, der nach der Seite der
Schienenfüße hin kleiner als i8oJ ist.In the previously customary methods, the rail ends are clamped into the stump cutting machine in such a way that the rails are exactly in the same alignment with one another. It turned out, however, that a perfect weld cannot be achieved in this way, rather that wear still remains recognizable at the joint.
The method of the invention overcomes the defect in that the Schieneiienden are so clamped in the welding machine, that the two longitudinal axes of the rails form at the mounting point an angle to each other, which according to the side of the rail bases is toward smaller than i8o J.
Während des Abschmelzvorganges ist der Werkstoff an den zu verschweißenden Schienctienden, von der Schweißfuge ausgehend, etwa 40. bis 50 mm weit so stark erwärmt, daß er gut verformbar ist. Durch die erii.11-During the melting process, the material is on the rail ends to be welded, starting from the weld joint, about 40 to 50 mm heated so much that it can be easily deformed. Through the erii.11-
-, dungsgemäße Einspannung weicht beim Zusammenstauchen der frei vorstehenden Schienenenden der weich gewordene Werkstoff nach oben aus. Der auf die nach der Stoifstelle hin ansteigend eingespannten Scliienenenden ausgeübte seitliche Schub oder Stauchdruck erzeugt am Stoß selbst eine nach oben gerichtete Komponente. Diese Komponente drängt die weichgewordenen, frei vorstehenden Schienenenden nach oben. Es bildet sich so nach dem Kopf der Schiene zu eine verstärkte Stauchwulst. Außerdem erhält die Schiene auf diese Weise in der Schweißung ' eine schwache Überhöhung. Nach der Entfernung des Stauchgrates wird die Fahrrläclie mittels des Schienenhobels geschlichtet, und es entsteht dann eine einwandfreie ebene Fahrfläche.-, proper clamping gives way when collapsing the freely protruding rail ends follow the softened material from above. The ends of the lines that are clamped in ascending order towards the stump lateral thrust or compression pressure exerted creates an upwardly directed one at the joint itself Component. This component pushes the softened, freely protruding rail ends upwards. It educates a reinforced compression bulge develops towards the head of the splint. In addition, the In this way, create a slight camber in the weld. After removal of the edging burr, the Fahrrläclie is finished by means of the rail plane, and a perfectly level driving surface is then created.
Es ist zwar schon bekannt, abgefahrene Schienenenden durch. Hochtreiben der Köpfe wieder brauchbar zu machen. Hierbei hat man sich jedoch sehr verwickelter und teuerer Hilfsmittel bedient, besonderer Heizvorrichtungen und Schmiedegeräte, oder man schnitt den Schienensteg ein wenig ein, der dann nach dem Hochtreiben des Kopfes wieder verschweißt werden mußte. Im Gegensatz zu diesen umständlichen Verfahren genügt gemäß der vorliegenden Erfindung das bloße winklig^ Einspannen der Schienenenden in die Schweißmaschine bekannter Bauart, um zu dem Ziele zu gelangen. Jede Schmiedearbeit von Hand erübrigt sich.It is already known to wear worn rail ends. Driving up their heads to make usable again. However, this has become very complicated and expensive Aids operated, special heating devices and forging equipment, or one cut the rail web a little, which then again after driving up the head had to be welded. In contrast to these cumbersome procedures, according to is sufficient of the present invention, the mere angular ^ clamping of the rail ends in the Welding machine of known type to get to the target. Any blacksmith work by hand is not necessary.
Die Erfindung ist in der Zeichnung schematisch veranschaulicht, wobei die winklige Einspannung der Scliienenenden stark übertrieben dargestellt ist.The invention is illustrated schematically in the drawing, the angled The clamping of the ends of the slides is shown greatly exaggerated.
Die Längsachsen der Schienen ι, 2, 3 bilden erfindungsgemäß an der Einspannstelle einen Winkel miteinander, der nach der' Seite der Schienenfüße hin kleiner als iSo° ist. Zu diesem Zwecke können die Spannbacken keilartige Form haben. Einfacher ist es jedoch, keilartige Beilagen zu verwenden. Zwischen den Schienenfüßen 1 und den unteren Spannbacken 11 liegen die keilartigen Beilagen 13, ebenso zwischen den Schienenköpfen 3 und den oberen -Spannbacken 10 die Beilagen 12. Die Schienenenden werden so zwangsläufig in die gewünschte Winkelstellung gebracht.. Die beiderseitigen Schienenlängen liegen auf nicht gezeichneten Rollgängen auf.According to the invention, the longitudinal axes of the rails 1, 2, 3 form one at the clamping point Angle with each other that is smaller than iSo ° on the side of the rail feet. to For this purpose, the jaws can have a wedge-like shape. It is easier, however, to use wedge-like side dishes. Between the rail feet 1 and the lower clamping jaws 11 are the wedge-like supplements 13, likewise between the rail heads 3 and the upper clamping jaws 10 are the shims 12. The rail ends are inevitably brought into the desired angular position. The Rail lengths on both sides rest on roller tables, which are not shown.
Werden nun die Spannbacken im Sinne der waagerechten Pfeile * mit starkem Druck aufeinanderzubewegt, so entsteht am Stoß die lotrechte Kraftkomponente y, welche die gewünschte Hochtreibung der Schienenköpfc hervorruft. Schließlich werden die Schienen mit Luftdruckmeißel vom Schweißgrat befreit und mit dem Schienenhobel geschlichtet, worauf eine vollkommen ebene Fahrfläche an der Schweißstelle fertig ist. Die Schweißstelle kann auch noch, einer geeigneten nachträglichen Warmbehandlung unterzogen werden. If the clamping jaws are now moved towards one another in the direction of the horizontal arrows * with strong pressure, the vertical force component y arises at the joint, which causes the desired upward movement of the rail heads. Finally, the rails are freed from the weld burr with an air chisel and smoothed with the rail planer, after which a completely flat running surface is finished at the weld point. The welding point can also be subjected to a suitable subsequent heat treatment.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW86323D DE612634C (en) | 1931-06-23 | 1931-06-23 | Process for welding used rails worn at the joint ends by means of the electrical resistance melting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW86323D DE612634C (en) | 1931-06-23 | 1931-06-23 | Process for welding used rails worn at the joint ends by means of the electrical resistance melting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE612634C true DE612634C (en) | 1935-04-30 |
Family
ID=7612346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW86323D Expired DE612634C (en) | 1931-06-23 | 1931-06-23 | Process for welding used rails worn at the joint ends by means of the electrical resistance melting process |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE612634C (en) |
-
1931
- 1931-06-23 DE DEW86323D patent/DE612634C/en not_active Expired
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