DE628393C - Rolling mill for expanding hollow bodies - Google Patents
Rolling mill for expanding hollow bodiesInfo
- Publication number
- DE628393C DE628393C DEP68732D DEP0068732D DE628393C DE 628393 C DE628393 C DE 628393C DE P68732 D DEP68732 D DE P68732D DE P0068732 D DEP0068732 D DE P0068732D DE 628393 C DE628393 C DE 628393C
- Authority
- DE
- Germany
- Prior art keywords
- rolling mill
- rolling
- hollow body
- hollow bodies
- mandrel
- 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
- 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)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Description
Walzwerk zum Aufwerten von Hohlkörpern Die Erfindung betrifft ein Walzwerk zum Aufwerten von Hohlkörpern mit einem in das Innere des Hohlkörpers eingeführten Dorn, durch den der Hohlkörper auf -seiner ganzen Länge gegen :eine sich drehende Walze gedrückt und dabei unter .Verb ößerung seiner Durchmesser ausgewalzt wird.Rolling mill for upgrading hollow bodies The invention relates to a Rolling mill for upgrading hollow bodies with an inserted into the interior of the hollow body Thorn through which the hollow body counteracts its entire length: a rotating one The roller is pressed and rolled out with an enlargement of its diameter.
Walzwerke .dieser Bauart sollen erfindungsgemäß dadurch vervollkommnet werden, daß der auszuwalzende . Hohlkörper durch den Walzdorn gegen zwei in gleicher Drehrichtung, aber mit verschiedenen , Geschwindigkeiten arbeitende Arbeitswalzen -gedrücktwird. Durch diese Maßnahme wird erreicht, daß sich das Rohr mit seinem zwischen den Arbeitswalzen liegenden Teil fest an den Dorn anlegt, bei gleichzeitiger Streckung das Materials zwischen den beiden Walzzonen.According to the invention, rolling mills of this type are to be perfected be that the one to be rolled out. Hollow body through the rolling mandrel against two in the same Direction of rotation, but work rolls operating at different speeds - is pressed. This measure ensures that the pipe with his part lying between the work rolls is firmly attached to the mandrel, while at the same time Stretching the material between the two rolling zones.
Eins Besonderheit wird noch darin gesehen, daß die Walzdrücke an den beiden Enden der einzelnen Walzen zur Herstellung verjüngter Rohre verschieden stark bemessen sind.Another peculiarity is seen in the fact that the rolling pressures on the both ends of the individual rollers to produce tapered tubes of different strengths are sized.
In der Zeichnung ist das Walzwerk dargegestellt, und zwar zeigt Abb. i dasselbe stirnseitig, während Abb. z gegenüber Abb. i in verkleinertem Maße seinen Längsschnitt wiedergibt; Abb.3 zeigt den Dorn. Mit a ist in den Abb. i und 2 das aufzuwertende Rohr und mit b der Dorn bezeichnet. Dieser befindet sich innerhalb des Rohres a und ist, wie die Äbb.2 zeigt, bei h abgestützt. Mit e und d sind die beiden Arbeitswalzen bezeichnet, von denen die mit d bezeichnete gegenüber der ersteren voreilend angetrieben wird.The drawing shows the rolling mill, namely Fig. i the same on the front, while Fig. z is smaller than Fig. i Shows longitudinal section; Fig.3 shows the mandrel. With a in Figs. I and 2 this is tube to be upgraded and denoted by b the mandrel. This is located within of the pipe a and, as Fig. 2 shows, is supported at h. With e and d are the two work rolls, of which the one marked d is opposite the former is driven in advance.
Mit f sind Stützwalzen bezeichnet und mit g in Abb. 3 der besonders ausgebildete Dorn. Der Dorn ist doppelt konisch gehalten, um so das nicht zu vermeidende Durchbiegen ..auf den Arbeitsgang .ohne Einfluß zu lassen.Back-up rolls are designated by f and particularly by g in Fig. 3 trained thorn. The mandrel is kept double conical so that this cannot be avoided Bending ... on the work process .without leaving any influence.
Die Walzen e und d sind, wie die Abb. i und 2 zeigen, mit Kleezapfen versehen und eihaften ihren Antrieb, wie schon oben dargetan, so, daß die Walze d gegenüber der mit ,e .bezeichneten. .voreilt. Beide Walzen verwalten dabei das Rohra, das hierdurch eine Aufwertung erfährt und zwischen den beiden. Walzene und- deiner Streckwirkung unterliegt. Der Dorn b kann dabei frei drehend gelagert sein, kann aber auch, falls sich dies als zweckmäßig erweist, einen besonderen Antrieb erhalten.The rollers e and d are, as shown in Figs. I and 2, with clover pegs provided and their drive, as already shown above, so that the roller d opposite the one marked with, e. .leading. Both reels manage this Rohra, which is upgraded as a result, and between the two. Rollers and subject to your stretching effect. The mandrel b can be freely rotating, but can also, if this proves to be expedient, a special drive obtain.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP68732D DE628393C (en) | Rolling mill for expanding hollow bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP68732D DE628393C (en) | Rolling mill for expanding hollow bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
DE628393C true DE628393C (en) | 1936-04-02 |
Family
ID=7391284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP68732D Expired DE628393C (en) | Rolling mill for expanding hollow bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE628393C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0178477A1 (en) * | 1984-10-19 | 1986-04-23 | Petersen, Ulrich Dr.-Ing. E.h. Dipl.-Ing | Method for producing seamless steel tubes with a great diameter |
-
0
- DE DEP68732D patent/DE628393C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0178477A1 (en) * | 1984-10-19 | 1986-04-23 | Petersen, Ulrich Dr.-Ing. E.h. Dipl.-Ing | Method for producing seamless steel tubes with a great diameter |
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