DE375203C - Process for transforming pilgrims' heads into useful workpieces - Google Patents
Process for transforming pilgrims' heads into useful workpiecesInfo
- Publication number
- DE375203C DE375203C DEM75318D DEM0075318D DE375203C DE 375203 C DE375203 C DE 375203C DE M75318 D DEM75318 D DE M75318D DE M0075318 D DEM0075318 D DE M0075318D DE 375203 C DE375203 C DE 375203C
- Authority
- DE
- Germany
- Prior art keywords
- heads
- pilgrim
- workpieces
- useful
- pilgrims
- 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
- 238000000034 method Methods 0.000 title claims description 3
- 230000001131 transforming effect Effects 0.000 title 1
- 238000003825 pressing Methods 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/16—Remodelling hollow bodies with respect to the shape of the cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
Verfahren zur Umformung von Pilgerköpfen in Nutzwerkstücke. Bekanntlich können bei Pilgerschrittwalzwerken zur Herstellung nahtloser Rohre die Endstücke des Hohlblockes nicht ganz aus-"(:walzt werden. Es entfallen Endstücke, die sogenanetea Pilgerköpfe. Bisher sind diese Pilgerköpfe nicht verwertet worden, sie wanderten vielmehr durchweg in den Schrott. Das Gewicht des Pilgerkopfschrottes beträgt etwa 6 bis 8 Prozent des Gewichtes der nach dem Pilgerschrittwalzverfahren hergestellten Rohre. Mit Hilfe vorliegender Erfindung gelingt es, mindestens So Prozent der Pilgerkopfabfälle in wirtschaftlicher Weise für die Rohrherstellurg o. dgl. nutzbar zu machen.Process for forming pilgrim heads into useful workpieces. As is well known can use the end pieces in pilgrim step rolling mills for the production of seamless tubes of the hollow block not completely - "(: be rolled. There are no end pieces, the so-called so-called Pilgrim heads. So far these pilgrims' heads have not been used, they migrated rather, consistently in the scrap. The weight of the pilgrim's head scrap is about 6 to 8 percent of the weight of the pilgrim step rolling process Tube. With the help of the present invention it is possible to at least 50 percent of pilgrims' head waste to make it economically viable for the pipe manufacturer or the like.
Nach der Erfindung werden aus den Pilgerköpfen Hohlwerkstücke in der Weise hergestellt, daß man zuerst die außen kegelige Verdickung des Pilgerkopfes unter einem Hammer, einer Presse o. dgl. nach innen treibt, so daß ein außen zylindrisches Werkstück entsteht, das dann durch Pressen, Auswalzen o. dg"l. weiterbearbeitet wird. Man kann z. B. das außen zylindrische Werkstück durch .Hineinpressen eines Stempels in einen gleichwandigen Hohlkörper umformen oder zur Erzielung des gleichen Erfolges das außen zylindrische Werkstück auf einem U'alzwerk, z. B. einem Schrägwalzwerk, auswalzen. Den dabei entstehenden kurzen Rohrstücken kann n@an eine solche Wandstärke neben, daß sie auch als Gewindemuffen für Gasrohre o. dgl. geeignet sind.According to the invention, hollow workpieces are made of the pilgrim heads in the Made in a way that first the outside conical thickening of the pilgrim's head under a hammer, a press o. The like. Drives inward, so that an externally cylindrical Workpiece is created, which is then further processed by pressing, rolling or the like will. You can z. B. the outside cylindrical workpiece by pressing a Reshape the stamp into a hollow body with the same wall or to achieve the same Success the externally cylindrical workpiece on a U'altwerk, z. B. a piercing mill, roll out. The resulting short pipe pieces can have such a wall thickness besides that they are also suitable as threaded sleeves for gas pipes or the like.
Es zeigt Abb. i einen Pilgerkopf, wie er von dem gewalzten Rohre entfällt, Abb. 2 den Pilgerkopf, nachdem seine kegelige Verdickung nach innen getrieben ist, und Abb. 3 ein Beispiel der Weiterverarbeitung. Der Pilgerkopf i wird, nachdem er außen zylindrisch gestaltet worden ist, in einer Matrize 2 durch Einpressen eines Stempels 3 zu einem gleichwandigenHohlkörper umgeformt.It shows Fig. I a pilgrim's head, as it is omitted from the rolled pipe, Fig. 2 the pilgrim's head after its conical thickening has been driven inwards, and Fig. 3 shows an example of further processing. The pilgrim's head i will after he has been designed to be cylindrical on the outside, in a die 2 by pressing a Stamp 3 formed into a hollow body with the same wall.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM75318D DE375203C (en) | Process for transforming pilgrims' heads into useful workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM75318D DE375203C (en) | Process for transforming pilgrims' heads into useful workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE375203C true DE375203C (en) | 1923-05-08 |
Family
ID=7316254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM75318D Expired DE375203C (en) | Process for transforming pilgrims' heads into useful workpieces |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE375203C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE922161C (en) * | 1950-04-07 | 1955-01-10 | Rheinische Roehrenwerke A G | Method and device for the production of pipes with inwardly thickened ends |
| DE1095634B (en) * | 1957-01-30 | 1960-12-22 | Wiggin & Co Ltd Henry | Process for the production of a rod-shaped blank for turbine and compressor blades |
-
0
- DE DEM75318D patent/DE375203C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE922161C (en) * | 1950-04-07 | 1955-01-10 | Rheinische Roehrenwerke A G | Method and device for the production of pipes with inwardly thickened ends |
| DE1095634B (en) * | 1957-01-30 | 1960-12-22 | Wiggin & Co Ltd Henry | Process for the production of a rod-shaped blank for turbine and compressor blades |
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