DE910612C - Tube with external longitudinal ribs and process for its manufacture - Google Patents

Tube with external longitudinal ribs and process for its manufacture

Info

Publication number
DE910612C
DE910612C DEM14483A DEM0014483A DE910612C DE 910612 C DE910612 C DE 910612C DE M14483 A DEM14483 A DE M14483A DE M0014483 A DEM0014483 A DE M0014483A DE 910612 C DE910612 C DE 910612C
Authority
DE
Germany
Prior art keywords
longitudinal ribs
external longitudinal
tube
ribs
manufacture
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
Application number
DEM14483A
Other languages
German (de)
Inventor
Karl Ernst Scholten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to DEM14483A priority Critical patent/DE910612C/en
Priority claimed from US378498A external-priority patent/US2835275A/en
Application granted granted Critical
Publication of DE910612C publication Critical patent/DE910612C/en
Expired legal-status Critical Current

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
    • B21B21/005—Pilgrim-step tube-rolling, i.e. pilger mills with reciprocating stand, e.g. driving the stand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/006—Rigid pipes specially profiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal

Description

Die Erfindung betrifft die Ausgestaltung eines an sieh bekannten nahtlosen Rohres mit Außenlängsrippen und besteht darin, daß diese Außenrippen durch Kaltpilgern erzeugt sind.
Bei einem solchen erfindungsgemäß gestalteten Rohr können auch auf der Rohrinnenseite Rippen vorgesehen sein bzw. Rillen, wobei dann zweckmäßig die (Anordnung so getroffen wird, daß den Rippen auf der Außenseite Rillen auf der Innenseite gegenüberliegen.The invention relates to the design of a seamless tube known per se with external longitudinal ribs and consists in the fact that these external ribs are produced by cold pilgrims.
In such a tube designed according to the invention, ribs or grooves can also be provided on the inside of the tube, in which case the arrangement is expediently made so that the ribs on the outside are opposite grooves on the inside.

Die Herstellung von Rohren gemäß der Erfindung erfolgt mit Walzen, in denen vorzugsweise im Scheitel und im Sprung Ausnehmungen bzw. Nuten vorgesehen sind, die in ihrer Form den gewünschten Rippen entsprechen.The manufacture of pipes according to the invention takes place with rollers, in which preferably recesses or grooves are provided in the apex and in the jump, the shape of the desired ribs.

Das Verfahren zur Herstellung kann auf verschiedene Art durchgeführt werden. Man kann z. B. eine Luppe über einen profilierten Dorn mit Walzen der angegebenen Art auswalzen und erhält dannThe method of manufacture can be carried out in various ways. You can z. B. Roll out a hollow over a profiled mandrel with rollers of the specified type and then receive

ao sowohl eine Außen- als auch eine Innenprofilierung des Rohres. Man kann aber auch die Luppe mit Walzen der angegebenen Art über einen glattzylindrischen Dorn auswalzen und die Walzbedingungen so wählen, daß z. B-. eine glattzylindrische Innenseite entsteht. Man kann aber auch zur Herstellung von Rohren mit zwei gegenüberliegenden Außenrippen die Ausnehmungen nur in die Sprungebene der Walzen legen; bei entsprechender Bemessung der Rohrwandstärke vor und nach der Walzung entstehen Rohre, bei denen den Außenrippen auf der Innenseite Rillen zugeordnet sind, ohne daß es eines profilierten Domes bedarf.ao both an external and an internal profile of the pipe. But you can also roll the shell with rolls of the specified type over a smooth cylindrical mandrel and the rolling conditions choose so that z. B-. a smooth cylindrical inside is created. But you can also for the production of pipes with two opposite one another Outer ribs lay the recesses only in the jump plane of the rollers; with appropriate Dimensioning of the pipe wall thickness before and after rolling results in pipes where the outer ribs on the inside are assigned grooves without there being a profiled dome requirement.

In der Zeichnung ist beispielsweise ein in dieser Weise hergestelltes Rohr dargestellt. Das Rohr ist mit i, die Außenrippen sind mit 2 und die Innenrillen mit 3 bezeichnet.In the drawing, for example, there is one in this Way made pipe shown. The tube is marked with an i, the outer ribs are marked with a 2 and the inner grooves labeled 3.

Claims (5)

Patentansprüche:Patent claims: i. Nahtloses Rohr mit durch Kaltpilgern erzeugten Außenlängsrippen.i. Seamless tube with created by cold pilgrimages External longitudinal ribs. 2 Nahtloses Rohr mit durch Kaltpilgern erzeugten Außenlängsrippen, denen auf der Rohrinnenseite Rillen gegenüberliegen.2 Seamless pipe with external longitudinal ribs produced by cold pilgrimages, those on the inside of the pipe Facing grooves. 3. Walzen zur Herstellung von Rohren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in ihrem Sprung oder im Sprung und Scheitel Ausnehmungen vorgesehen sind, die den Rippen entsprechen.3. Rolls for the production of pipes according to claim 1 or 2, characterized in that in their crack or in the crack and apex recesses are provided which the ribs correspond. 4. Verfahren zur Herstellung von Rohren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Luppe über einen profilierten Dorn mit Walzen nach Anspruch 3 ausgewalzt wird.4. A method for the production of pipes according to claim 1 or 2, characterized in that that a billet is rolled out over a profiled mandrel with rollers according to claim 3 will. 5. Verfahren zum Walzen von Rohren nach Anspruch 2, dadurch gekennzeichnet, daß eine Luppe über einen glattzylindrischen Dorn mittels Walzen mit Ausnehmungen im Sprung gemäß Anspruch 3 ausgewalzt wird, wobei Wandstärke der Luppe und Stichabnahme so gewählt sind, daß allein durch Fließvorgänge im Material die Innenrillen entstehen.5. Method of rolling pipes according to Claim 2, characterized in that a hollow shell has a smooth cylindrical mandrel is rolled out by means of rolling with recesses in the jump according to claim 3, wherein Wall thickness of the hollow and stitch decrease are chosen so that solely through flow processes the inner grooves are created in the material.
DEM14483A 1952-06-21 1952-06-21 Tube with external longitudinal ribs and process for its manufacture Expired DE910612C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM14483A DE910612C (en) 1952-06-21 1952-06-21 Tube with external longitudinal ribs and process for its manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM14483A DE910612C (en) 1952-06-21 1952-06-21 Tube with external longitudinal ribs and process for its manufacture
US378498A US2835275A (en) 1953-09-04 1953-09-04 Tube with external longitudinal ribs

Publications (1)

Publication Number Publication Date
DE910612C true DE910612C (en) 1956-03-01

Family

ID=25986616

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM14483A Expired DE910612C (en) 1952-06-21 1952-06-21 Tube with external longitudinal ribs and process for its manufacture

Country Status (1)

Country Link
DE (1) DE910612C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279600B (en) * 1967-08-11 1968-10-10 Mannesmann Ag Process and roll calibration for rolling seamless tubes with external longitudinal ribs
DE4123559C1 (en) * 1991-07-16 1992-11-26 Gesenkschmiede Schneider Gmbh, 7080 Aalen, De

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB589409A (en) * 1945-03-22 1947-06-19 William Noel Kaross Improvements in or relating to pipes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB589409A (en) * 1945-03-22 1947-06-19 William Noel Kaross Improvements in or relating to pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279600B (en) * 1967-08-11 1968-10-10 Mannesmann Ag Process and roll calibration for rolling seamless tubes with external longitudinal ribs
DE4123559C1 (en) * 1991-07-16 1992-11-26 Gesenkschmiede Schneider Gmbh, 7080 Aalen, De

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