DE594196C - Device for the production of pipes with an inwardly thickened head end - Google Patents
Device for the production of pipes with an inwardly thickened head endInfo
- Publication number
- DE594196C DE594196C DEM117202D DEM0117202D DE594196C DE 594196 C DE594196 C DE 594196C DE M117202 D DEM117202 D DE M117202D DE M0117202 D DEM0117202 D DE M0117202D DE 594196 C DE594196 C DE 594196C
- Authority
- DE
- Germany
- Prior art keywords
- head end
- mandrel
- pipes
- production
- thickened head
- 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
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
Vorrichtung zur Herstellung von Rohren mit nach innen verdicktem Kopfende Die Erfindung betrifft eine Vorrichtung zur Herstellung von Rohren mit nach innen verdicktem Kopfende auf einem abgesetzten Dorn. Dieses Kopfende wird gewöhnlich aus dem Pilgerkopf gebildet.Device for the production of pipes with an inwardly thickened head end The invention relates to a device for producing pipes with inside thickened head end on a stepped thorn. This headboard becomes common formed from the pilgrim's head.
Beim Walzen dieser inneren Verdickung über dem dünneren Teil des Dornes hat man bisher das Rohrende durch einen sich gegen den Dornabsatz. legenden Stützring gestützt.When rolling this inner thickening over the thinner part of the mandrel you have so far the end of the pipe by one against the mandrel heel. laying support ring supported.
Der Dorn erfährt infolgedessen eine Beanspruchung.As a result, the mandrel experiences stress.
Diese wird gemäß der Erfinden-- vermieden durch Anwendung einer auf den Dorn aufgesetzten, z. B. zwei- oder mehrteilig ausgebildeten Hülse. die sich nicht gegen den Dornabsatz, sondern gegen den Dornhalter oder einen vor diesem angeordneten Kaltring stützt und als Widerlager für das Rohr während des Einwärtswalzens des verdickten Kopfendes des Rohres dient.According to the invention, this is avoided by applying a put the mandrel, z. B. two-part or multi-part sleeve. which not against the mandrel heel, but against the mandrel holder or one arranged in front of it Cold ring supports and acts as an abutment for the pipe during the inward rolling of the thickened head end of the pipe is used.
Bei Verwendung einer zwei- oder mehrteiligen Hülse braucht der Dorn nicht, wie bisher, ganz aus dem Rohr herausgezogen zu werden, sondern nur etwas über den Dornabsatz: oder den -übergang. Infolgedessen ist nur eine ganz kurze Unterbrechung des Walzvorganges nötig. Außerdem wird eine Verformung der Absatzstelle des Dornes beim Pilgern oder beim etwaigen Festkeilen des Kaltringes bei schwach abgesetztem Dorn vermieden.When using a two-part or multi-part sleeve, the mandrel needs not to be pulled all the way out of the pipe, as before, but just a little over the thorn heel: or the transition. As a result, there is only a very brief interruption of the rolling process. In addition, there is a deformation of the point where the mandrel is positioned when making a pilgrimage or when wedging the cold ring if it is weakly set off Thorn avoided.
Auf der Zeichnung ist die Vorrichtung in verschiedenen Stellungen -in Verbindung mit den zugehörigen Walzwerksteilen dargestellt.In the drawing the device is in different positions -Shown in connection with the associated rolling mill parts.
Das gegebenenfalls bereits mit nach innen verdicktem Schwanzende versehene Rohr a ist nach Abb. r , zunächst bis auf das für die Innen verdichung des Kopfendes erforderliche Stück c auf seinen äußeren Durchmesser ausgewalzt. Nachdem der Dorn d teilweise aus dem Rohr herausgezogen ist, wird die zwei-oder mehrteilige Hülse f über den Dorn geschoben, die sich gegen den Kaltring i, gegebenenfalls aber auch gegen den Dornhalter k stützt (Abb. a). Alsdann wird auf dem noch im Rohr verbliebenen dünnen Dornteil das Kopfende einwärts gewalzt (Abb.3), so daB das fertig gewalzte Rohr nach Entfernung des punktierten Pilgerkopfendes das nach innen verdickte Kopfende c aufweist (Abb. .1.).The one that may already have an inwardly thickened tail end Tube a is as shown in Fig. R, initially except for that for the internal compression of the head end required piece c rolled out to its outer diameter. After the thorn d is partially pulled out of the tube, the two-part or multi-part sleeve becomes f pushed over the mandrel, which is against the cold ring i, but also if necessary supports against the mandrel holder k (Fig. a). Then it is applied to what is still in the pipe thin part of the mandrel rolled the head end inwards (Fig. 3), so that the finished rolled After removing the punctured end of the pilgrim's head, tube the inwardly thickened head end c (Fig. .1.).
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM117202D DE594196C (en) | Device for the production of pipes with an inwardly thickened head end |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM117202D DE594196C (en) | Device for the production of pipes with an inwardly thickened head end |
Publications (1)
Publication Number | Publication Date |
---|---|
DE594196C true DE594196C (en) | 1934-03-13 |
Family
ID=7328729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM117202D Expired DE594196C (en) | Device for the production of pipes with an inwardly thickened head end |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE594196C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093309B (en) * | 1958-02-10 | 1960-11-24 | Accles And Pollock Ltd Of Padd | Pulling device for the production of pipes with a part that is internally thickened at one end |
-
0
- DE DEM117202D patent/DE594196C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093309B (en) * | 1958-02-10 | 1960-11-24 | Accles And Pollock Ltd Of Padd | Pulling device for the production of pipes with a part that is internally thickened at one end |
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