DE616893C - - Google Patents
Info
- Publication number
- DE616893C DE616893C DENDAT616893D DE616893DA DE616893C DE 616893 C DE616893 C DE 616893C DE NDAT616893 D DENDAT616893 D DE NDAT616893D DE 616893D A DE616893D A DE 616893DA DE 616893 C DE616893 C DE 616893C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- pointed
- rolling
- resolution
- 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.)
- Active
Links
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000009785 tube rolling Methods 0.000 claims description 4
- 208000001848 Dysentery Diseases 0.000 claims 1
- 230000001154 acute Effects 0.000 description 1
- 230000001143 conditioned Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/12—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
- B21B19/14—Rolling tubes by means of additional rollers arranged inside the tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Description
Deutsche Röhrenwerke Akt.-Ges. in Düsseldorf*)Deutsche Röhrenwerke Akt.-Ges. In Dusseldorf*)
Rohrwalzwerk mit Außen- und InnenwälzenTube rolling mill with external and internal rolls
Patentiert im Deutschen Reiche vom 25. November 1933 abPatented in the German Empire on November 25, 1933
Es sind Rohrwalzwerke mit Außen- und Iimenwalzen bekannt, bei denen die Kalibrierung der Innenwalzen der Auflösung eines zugespitzten Domes entspricht. Bei diesen wird der Werkstoff in der Richtung des Rohrumfanges gestreckt, wobei die Innenwalzen nicht nur als Widerlager des von außen wirkenden Druckes dienen, sondern gleichzeitig in ihrem zugespitzten Teil als formänderndes Werkzeug wirken. Die Auflösung des zugespitzten Domes in die Form entsprechend kalibrierter Innenwalzen hat gleichzeitig den Vorteil, daß die Reibungswiderstande zwischen dem Walzgut und dem Dorn gering bleiben.There are tube rolling mills with outer and Iimenwalzen known in which the calibration the inner roll corresponds to the resolution of a pointed dome. With these the material is stretched in the direction of the pipe circumference, with the inner rollers not only serve as an abutment for the external pressure, but at the same time act in their pointed part as a shape-changing tool. The dissolution of the acute Domes in the form of appropriately calibrated inner rollers also has the advantage that the frictional resistance between the rolling stock and the mandrel remain low.
Jedoch besitzt dieses bekannte Rohrwalzwerk den Nachteil, daß das Walzgut, insbesondere beim Beginn der Arbeit, zurückiutschen kann. Zum besseren Erfassen und Halten des Walzgutes wird daher erfindungsgemäß vorgeschlagen, Innenwalzen zu benutzen, deren Kalibrierung der Auflösung eines zugespitzten, in Walzrichtung in seinem Durchmesser stetig wachsenden Domes entspricht. Auch die Außenwalzen können in ähnlicher Weise ausgebildet sein.However, this known tube rolling mill has the disadvantage that the rolling stock, in particular at the beginning of work, can slip back. For better understanding and Holding the rolling stock is therefore proposed according to the invention to use internal rollers, the calibration of which corresponds to the resolution of a pointed dome that is constantly growing in diameter in the rolling direction. The outer rollers can also be designed in a similar manner.
Eine beispielsweise Ausführungsform des Erfindungsgedankens ist in der Zeichnunng dargestellt.An example embodiment of the inventive concept is shown in the drawing shown.
Das Rohr 1 wird zwischen den Innenwalzen 4 und den Außenwalzen 2 erfaßt. Die Innenwalzen sind der Auflösung eines absatzweise zugespitzten Domes entsprechend kalibriert. Der Absatz ist bei 9 angedeutet. Die Innenwalzen 4 sind mittels eines gemeinsamen Walzkopfes 5 über eine Dornstange 6 an der Grundplatte 8 derart gelagert, daß sie gegenüber den im Walzgerüst 7 angeordneten Außenwalzen 2 unverschieblich sind. Die Innenwalzen sind verhindert, sich mit dem Rohr ι um die Rohrachse zu drehen. Die Walzen sind so schräg gestellt, wie es durch den Vorschub des Walzgutes bedingt ist.The pipe 1 is gripped between the inner rollers 4 and the outer rollers 2. the Inner rollers are calibrated according to the resolution of a dome that is sharply pointed. The paragraph is indicated at 9. The inner rollers 4 are by means of a common Rolling head 5 mounted on a mandrel bar 6 on the base plate 8 in such a way that they opposite the arranged in the roll stand 7 outer rolls 2 are immovable. The inner rollers are prevented from getting in contact with the Rotate tube around the tube axis. The reels are as inclined as it is through the advance of the rolling stock is conditioned.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE616893C true DE616893C (en) |
Family
ID=576207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT616893D Active DE616893C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE616893C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747926C (en) * | 1936-10-02 | 1944-10-20 | Helical rolling mill | |
| DE915322C (en) * | 1951-08-05 | 1954-07-19 | Martin Roeckner Dipl Ing | Process for rolling pipes |
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0
- DE DENDAT616893D patent/DE616893C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747926C (en) * | 1936-10-02 | 1944-10-20 | Helical rolling mill | |
| DE915322C (en) * | 1951-08-05 | 1954-07-19 | Martin Roeckner Dipl Ing | Process for rolling pipes |
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