DE104854C - - Google Patents

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Publication number
DE104854C
DE104854C DENDAT104854D DE104854DA DE104854C DE 104854 C DE104854 C DE 104854C DE NDAT104854 D DENDAT104854 D DE NDAT104854D DE 104854D A DE104854D A DE 104854DA DE 104854 C DE104854 C DE 104854C
Authority
DE
Germany
Prior art keywords
tube
pipe
waves
pressed
walls
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
Application number
DENDAT104854D
Other languages
German (de)
Publication of DE104854C publication Critical patent/DE104854C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00Corrugating tubes
    • B21D15/04Corrugating tubes transversely, e.g. helically
    • B21D15/10Corrugating tubes transversely, e.g. helically by applying fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Gegenstand vorliegender Erfindung bildet ein Verfahren zur Herstellung von Wellrohren und dergl. Die Vorrichtung dazu besteht aus einem gewöhnlichen hydraulischen oder anderen Prefswerk ABCDEFG. Die Enden des zu pressenden, rothglühend erhitzten eisernen geschweifsten Rohres M werden in den beiden Prefsflächen F und G eingespannt und abgedichtet. Zwischen den Prefsflächen befinden sich auf der Länge des Rohres in bestimmter Entfernung eine beliebige Anzahl zweitheilige, rasch verschliefsbare profilirte Ringe η, in welche das erhitzte Rohr eingelegt wird.The subject of the present invention is a method for the production of corrugated pipes and the like. The device for this consists of an ordinary hydraulic or other ABCDEFG Prefswerk. The ends of the red-hot hot iron pipe M to be pressed are clamped in the two pressing surfaces F and G and sealed. Between the pressing surfaces, along the length of the tube, there are any number of two-part, rapidly closable, profiled rings η into which the heated tube is inserted. Das Verfahren beruht nun darauf, dafs zu gleicher Zeit mit der hydraulischen Presse, ein axialer Druck erzeugt .wird, während die Wände des Rohres .mittelst hochgespannter Gase oder Dämpfe vom Innern des Cylinders an die profilirten Wände der Ringe η geprefst werden.The method based on the fact .If DAF generated at the same time with the hydraulic press, an axial pressure, while the walls of the tube .mittelst high tension gases or vapors are geprefst η from the interior of the cylinder to the profilirten walls of the rings. Die Anzahl und Formen der Wellen werden durch die Anzahl, die Profile und die Entfernung der Ringe fixirt. Der axiale Druck verhindert während der Wirkung des· inneren Druckes die Ausdehnung und Verschwächung des Materials der Rohrwände, indem er der durch die Wellenbildung entstehenden- Verkürzung des Rohres intensiv folgt. Diese Stärkeverminderung würde unbedingt eintreten, wenn die Enden des zu pressenden Rohres festgehalten oder wenn die .Wellen durch mechanische Hülfsmittel erzeugt werden.
, Auch erleiden die Schweifsnähte keine Beschädigungen.
The number and shapes of the waves are fixed by the number, the profiles, and the distance of the rings. During the action of the internal pressure, the axial pressure prevents the expansion and weakening of the material of the pipe walls by closely following the shortening of the pipe caused by the formation of waves. This reduction in strength would necessarily occur if the ends of the pipe to be pressed are held or if the waves are generated by mechanical aids.
The welding seams are also not damaged.
Nach demselben Verfahren können metallene Hohlkörper jeder beliebigen Querschnittsform in jede beliebige Aufsenform geprefst werden.Metal hollow bodies of any cross-sectional shape can be produced by the same process can be pressed into any outer shape. Patenτ-Anspruch:Patenτ claim: Verfahren zur Herstellung von Wellrohren in erhitztem Zustande, dadurch gekennzeichnet, dafs das in eine wellenförmige Prefsform eingebrachte Rohr mittelst Gas-, Dampf- oder Luftdruckes von innen nach aufsen geprefst und gleichzeitig in axialer Richtung zusammengedrückt wird, und zwar zur Vermeidung jeder Querschnittsverminderung und schädlicher Beanspruchung des Rohmaterials.Process for the production of corrugated pipes in a heated state, characterized in that, that the tube introduced into a wave-shaped pre-mold by means of gas, steam or gas Air pressure from the inside to the outside and at the same time compressed in the axial direction to avoid any reduction in cross-section and harmful stress of the raw material. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings. (2. Aiiflage, ausgegeben am 23. Januar igooj(2nd edition, issued on January 23rd igooj BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
DENDAT104854D Active DE104854C (en)

Publications (1)

Publication Number Publication Date
DE104854C true DE104854C (en)

Family

ID=375185

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Country Status (1)

Country Link
DE (1) DE104854C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081856B (en) * 1953-09-17 1960-05-19 Baldwin Lima Hamilton Corp Machine for stretching pipes using internal hydraulic pressure
DE1087553B (en) * 1953-09-08 1960-08-25 Edward Joseph Poitras Device for the production of bellows from corrugated metal
DE1120409B (en) * 1954-08-12 1961-12-28 James Phineas Zallea Method for producing ring waves with a bulged profile on metal pipes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087553B (en) * 1953-09-08 1960-08-25 Edward Joseph Poitras Device for the production of bellows from corrugated metal
DE1081856B (en) * 1953-09-17 1960-05-19 Baldwin Lima Hamilton Corp Machine for stretching pipes using internal hydraulic pressure
DE1120409B (en) * 1954-08-12 1961-12-28 James Phineas Zallea Method for producing ring waves with a bulged profile on metal pipes

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