DE4893C - Verfahren zum Erweitern von Röhren und zum Verdichten der Rohrwandungen - Google Patents
Verfahren zum Erweitern von Röhren und zum Verdichten der RohrwandungenInfo
- Publication number
- DE4893C DE4893C DENDAT4893D DE4893DA DE4893C DE 4893 C DE4893 C DE 4893C DE NDAT4893 D DENDAT4893 D DE NDAT4893D DE 4893D A DE4893D A DE 4893DA DE 4893 C DE4893 C DE 4893C
- Authority
- DE
- Germany
- Prior art keywords
- pipe walls
- compressing pipe
- expanding pipes
- expanding
- pipes
- 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
- 238000007906 compression Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
Description
Claims (1)
- Patent-Anspruch:Das Erweitern und Verdichten von Röhren vermittelst eines geeigneten Stempels, welche durch den direct auf ihn ausgeübten Druck einer Flüssigkeit durch ..die betreffende Röhre hindurchgeprefst wird. '
Publications (1)
Publication Number | Publication Date |
---|---|
DE4893C true DE4893C (de) |
Family
ID=283519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT4893D Active DE4893C (de) | Verfahren zum Erweitern von Röhren und zum Verdichten der Rohrwandungen |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4893C (de) |
-
0
- DE DENDAT4893D patent/DE4893C/de active Active
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