[go: up one dir, main page]

DE959637C - Plant for the production of particularly long and heavy pipes - Google Patents

Plant for the production of particularly long and heavy pipes

Info

Publication number
DE959637C
DE959637C DER14061A DER0014061A DE959637C DE 959637 C DE959637 C DE 959637C DE R14061 A DER14061 A DE R14061A DE R0014061 A DER0014061 A DE R0014061A DE 959637 C DE959637 C DE 959637C
Authority
DE
Germany
Prior art keywords
production
push bench
mill
wall thickness
plant
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
DER14061A
Other languages
German (de)
Inventor
Hubert Sassmann
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.)
Phoenix Rheinrohr AG
Original Assignee
Phoenix Rheinrohr 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 Phoenix Rheinrohr AG filed Critical Phoenix Rheinrohr AG
Priority to DER14061A priority Critical patent/DE959637C/en
Application granted granted Critical
Publication of DE959637C publication Critical patent/DE959637C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16Metal 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
    • B21C1/22Metal 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
    • B21C1/24Metal 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
    • B21C1/26Push-bench drawing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Description

Die Erfindung zielt auf die Herstellung besonders langer und schwerer nahtloser Rohre in einer Stoßbankanlage ab, die mit einem zwischen der Lochpresse und der Stoßbank eingeschalteten Schrägwakwerk ausgestattet ist.The invention aims to produce particularly long and heavy seamless tubes in one Push bench system, which switched on with a between the punch press and the push bench Inclined wakwerk is equipped.

Die älteren Stoßbankanlagen bestehen aus Lochpresse und Stoßbank. Dabei ist die Stoßbank mit Stoßstange bezüglich Länge so ausgelegt, daß unter Berücksichtigung des Umstandes, daß das im ίο Quadrat begrenzte Ausgangsstück nicht länger sein darf als etwa siebenmal Lochdorndurchmesser, bei der Herstellung normalwandiger Rohre die Länge des gestoßenen Rohres etwa der Länge der Stoßstange entspricht. Bei der Herstellung von Rohren mit größerer Wandstärke kann der zur Verfügung stehende Stoßhub nicht ausgenützt, d. h. der Anfall kürzerer Rohrlängen muß notgedrungen in Kauf genommen werden.The older push bench systems consist of a punch press and push bench. The push bench is included Bumper designed in terms of length so that, taking into account the fact that the in ίο Square limited starting piece must not be longer than about seven times the piercing pin diameter, in the production of normal-walled pipes, the length of the butted pipe is approximately the length of the Bumper matches. When producing pipes with a greater wall thickness, the for Available stroke stroke not used, d. H. the use of shorter pipe lengths is an absolute necessity be accepted.

Um zu schwereren, d. h. längeren und. dickwandigeren Rohren zu kommen, wurde bei neueren Anlagen bereits von schwereren Lochstücken ausgegangen, deren Innendurchmesser großer war als die Lichtweite des herzustellenden Rohres. Um die höhere Umformungsarbeit bewältigen zu können und um nicht zu untragbaren Stoßbanklängen zu kommen, wurde bei diesen Anlagen zwischen Lochpresse und Stoßbank ein Schrägwalzwerk bzw. Asselwalzwerk eingeschaltet. In diesen Einrichtungen werden, demnach die aus der Lochpresse kommenden Lochstücke vor ihrem Einlauf in die Stoßbank — wenn auch begrenzt — hinsichtlich Durchmesser und Wandstärke reduziert. Es kann daher in der Lochpresse von einem größeren Ausgangsquadrat, d. h. von schwereren Blöcken, ausgegangen werden. Der erzielte Gewichtsvorteil ist dazu benutzt worden, die nachfolgende Stoßbank für die Herstellung längerer Rohre auszulegen als bei der älteren Bauart.To make heavier, i. H. longer and. thicker-walled Pipes, heavier perforated pieces have already been assumed in newer systems, the inside diameter of which was larger than the clear width of the pipe to be produced. Around to be able to cope with the higher forming work and so as not to excessively unbearable bumper lengths In these systems, a piercing mill was installed between the piercing press and the push bench or Assel mill switched on. In these facilities, therefore, those from the punch press coming hole pieces before their entry into the bumper - albeit limited - with regard to Reduced diameter and wall thickness. It can therefore be used in the punch press from a larger starting square, d. H. heavier blocks can be assumed. The weight advantage achieved is been used to lay out the following push bench for the production of longer tubes than with the older type.

Die Erhöhung der Ausgangsgewichte bzw. die Vorstreckung der Lochstücke im Schrägwalzwerk kann jedoch wegen der "begrenzten Umformungsleistung dieses Walzwerks nicht so weit getrieben werden, daß nun auch bei diesen Anlagen bei der Herstellung größerer Rohrwandstärken der Anfall kürzerer Rohrlängen vermieden werden, d. h. eine Ausnutzung des vollen Stoßhubes der Stoßbank erfolgen kann.The increase in the initial weight or the pre-stretching of the perforated pieces in the cross rolling mill but cannot go as far because of the "limited forming capacity of this rolling mill are that now also with these systems in the production of larger pipe wall thicknesses the occurrence shorter pipe lengths are avoided, d. H. utilization of the full stroke of the push bench can be done.

Um bei jeder Stoßbankanlage älterer wie neuerer Bauart unabhängig von der Wandstärke des fertigen. Rohres den vollen Stoßhub ausnützen zu können, wird erfindungsgemäß vorgeschlagen, bei einer Stoßbankanlage zum Herstellen langer und schwerer Rohre, die mit einer Lochpresse, mit einem Schrägwalzwerk, zum Abstrecken der Lochstücke hinsichtlich ihres Durchmessers und ihrer Wandstärke sowie mit einer Stoßbank zum Abstrecken der anfallenden Luppen auf die gewünschte Endabmessung ausgerüstet ist, dem Schrägwalzwerk ein Reduzierwalzwerk vorzuordnen. In order to be independent of the wall thickness of the finished product, regardless of the wall thickness of any bumper system, both older and newer. Tube to be able to use the full stroke stroke is proposed according to the invention at a push bench system for producing long and heavy pipes with a punch press a piercing mill, for ironing the hole pieces with regard to their diameter and their Wall thickness as well as with a push bench to straighten the resulting flakes to the desired Final dimension is equipped to arrange a reducing mill in front of the piercing mill.

Da das Reduzierwalzwerk eine ausreichende Anzahl Gerüste hat, können gewichtsmäßig entsprechende, in der Presse noch lochbare Ausgangsgewichte nach dem Lochen so weit reduziert werden, daß nach dem Stoßvorgang bei jeder vorkommenden Wandstärke der volle Stoßhub ausgenützt werden kann, d. h. besonders lange und dickwandige Rohre erzeugt werden können.Since the reducing mill has a sufficient number of stands, appropriate weight, Initial weights that can still be punched in the press are reduced after punching to such an extent that that after the impact process, the full impact stroke is used for every occurring wall thickness can be, d. H. particularly long and thick-walled pipes can be produced.

Die Erfindung besteht in einer Übertragung des bei Schwedenstraßen und kontinuierlichen Rohr-Walzwerken bereits bekannten Reduzierwalzprozesses der Lochstücke auf eine Stoßbankanlage.The invention consists in a transfer of the in Schwedenstraßen and continuous tube rolling mills already known reducing rolling process of the perforated pieces on a push bench system.

Sie erbringt für Stoßbankanlagen den bedeutenden Vorteil, daß die für den Lochpreßvorgang bestehende Begrenzung beseitigt wird. Die Erfindung ermöglicht es, jede vorhandene Stoßbankanlage bei jeder vorkommenden Wandstärke wirtschaftlich voll auszunutzen.It provides the significant advantage for push bench systems that the existing one for the hole pressing process Limitation is removed. The invention makes it possible to use any existing push bench system to be economically fully exploited for every occurring wall thickness.

In der Zeichnung ist die Stoßbankanlage gemäß der Erfindung in einem Ausführungsbeispiel sehematisch veranschaulicht. Es stellen dar: a die Lochpresse, b das Lochstück, c das Reduzierwalzwerk, d das Schrägwalzwerk, e die Stoßbank, / den zum Lösen des gestoßenen Rohres von der Stoßstange dienenden Reeler.In the drawing, the push bench system according to the invention is illustrated schematically in one embodiment. It shows: a the piercing press, b the perforated piece, c the reducing mill, d the cross rolling mill, e the push bench, / the reeler that is used to loosen the pushed tube from the push rod.

Claims (2)

PATENTANSPRUCH:PATENT CLAIM: 1. Anlage zum Herstellen besonders langer und schwerer Rohre, bei der ein Ausgangswerkstück gelocht, das Lochstück sodann im Reduzierwakwerk eine Verkleinerung seines Außen- und Innendurchmessers und daran anschließend eine Verminderung seiner Wandstärke erfährt, worauf die so erhaltene Luppe in einer weiteren Abstreckeinrichtung die gewünschte Endabmessung erhält, dadurch gekennzeichnet, daß bei einer bekannten Stoßbankanlage zum Herstellen langer und schwerer Rohre mit einer Lochpresse, mit einem Schrägwakwerk zum Abstrecken der Lochstücke hinsichtlich ihres Durchmessers und ihrer Wandstärke sowie mit einer Stoßbank zum Abstrecken der anfallenden Luppen auf die gewünschte Endabmessung dem Schrägwalzwerk (d) ein Reduzierwalzwerk (c) vorgeordnet ist.·1. Plant for the production of particularly long and heavy tubes, in which an initial workpiece is perforated, the perforated piece then experiences a reduction in its outer and inner diameter in the reducing wakeboard and then a reduction in its wall thickness, whereupon the resulting billet is given the desired final dimensions in a further ironing device receives, characterized in that in a known push bench system for the production of long and heavy pipes with a piercing press, with an inclined wakwerk for ironing the hole pieces with regard to their diameter and their wall thickness as well as with a push bench for ironing the resulting blanks to the desired final dimensions of the piercing mill (d ) a reducing mill (c) is arranged upstream. 2. Stoßbankanlage nach Anspruch 1, dadurch gekennzeichnet, daß die Gerüste des Reduzierwalzwerkes (c) vertikal, d. h. übereinander, angeordnet sind. 2. bumper system according to claim 1, characterized in that the frames of the reducing mill (c) vertical, d. H. one above the other, are arranged.
DER14061A 1954-04-24 1954-04-24 Plant for the production of particularly long and heavy pipes Expired DE959637C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER14061A DE959637C (en) 1954-04-24 1954-04-24 Plant for the production of particularly long and heavy pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER14061A DE959637C (en) 1954-04-24 1954-04-24 Plant for the production of particularly long and heavy pipes

Publications (1)

Publication Number Publication Date
DE959637C true DE959637C (en) 1957-03-07

Family

ID=7399187

Family Applications (1)

Application Number Title Priority Date Filing Date
DER14061A Expired DE959637C (en) 1954-04-24 1954-04-24 Plant for the production of particularly long and heavy pipes

Country Status (1)

Country Link
DE (1) DE959637C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045342B (en) * 1957-06-05 1958-12-04 Demag Ag Method and device for the production of extremely heavy, for example for pushing thick-walled tubes, certain hollow parts as well as hollow parts produced by this method
DE2812778A1 (en) * 1978-03-23 1979-09-27 Kocks Gmbh Friedrich PLANT FOR MANUFACTURING SEAMLESS PIPES

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE440654C (en) * 1926-01-07 1927-06-10 Mannesmann Ag Process for rolling pipes
DE735468C (en) * 1937-06-02 1943-05-18 Mitteldeutsche Stahlwerke Ag Process for the production of seamless tubes
DE737604C (en) * 1938-05-28 1943-07-20 Mannesmann Ag Process for the production of seamless tubes
GB655532A (en) * 1948-12-01 1951-07-25 Wellman Smith Owen Eng Co Ltd Improvements in or relating to the production of seamless steel tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE440654C (en) * 1926-01-07 1927-06-10 Mannesmann Ag Process for rolling pipes
DE735468C (en) * 1937-06-02 1943-05-18 Mitteldeutsche Stahlwerke Ag Process for the production of seamless tubes
DE737604C (en) * 1938-05-28 1943-07-20 Mannesmann Ag Process for the production of seamless tubes
GB655532A (en) * 1948-12-01 1951-07-25 Wellman Smith Owen Eng Co Ltd Improvements in or relating to the production of seamless steel tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045342B (en) * 1957-06-05 1958-12-04 Demag Ag Method and device for the production of extremely heavy, for example for pushing thick-walled tubes, certain hollow parts as well as hollow parts produced by this method
DE2812778A1 (en) * 1978-03-23 1979-09-27 Kocks Gmbh Friedrich PLANT FOR MANUFACTURING SEAMLESS PIPES

Similar Documents

Publication Publication Date Title
DE3432288C2 (en) Use of inert gas in the manufacture of seamless pipes
DE1960328C3 (en) Method and rolling mill for rolling out a tube billet
DE2345056A1 (en) METHOD AND DEVICE FOR MANUFACTURING SEAMLESS PIPES FROM METAL
DE3043679C2 (en)
DE959637C (en) Plant for the production of particularly long and heavy pipes
DE1427915A1 (en) Method and device for manufacturing seamless tubes
EP0153495B1 (en) Method of drawing a seamless metal tube
DE2657823A1 (en) Rolling mill for mfr. of seamless tubes from billets - using a skew rolling mill with mandrel or hole press
WO2017005666A1 (en) Device and method for producing seamless pipes
DER0014061MA (en)
EP0119154A2 (en) Rolling mill arrangement for the production of seamless steel pipes
DE737604C (en) Process for the production of seamless tubes
DE2437441A1 (en) CONTINUOUS PROCESS FOR MANUFACTURING VERY LONG PRECISION TUBES AND SYSTEM FOR CARRYING OUT THE PROCESS
EP0615794B1 (en) Method to produce a plug chamber for cascade drawing of tubes and device for carrying out the method
EP0361632B1 (en) Method for guiding elongate hollow cylindrical rolled material
DE2605486C2 (en) Process for the production of longitudinally welded pipes
DE2657839A1 (en) Planetary skew rolling mill for mfg. seamless tubes - where mandrel travels through tube blank into deformation zone of the mill
DE1752116A1 (en) Method and apparatus for manufacturing seamless steel tubes
DE3145394A1 (en) METHOD AND DEVICE FOR PRODUCING TUBES IN A COLD ROLLING MILL
DE2812778C2 (en) Plant for the production of seamless tubes
AT215933B (en) Fixed rolled or stopper rods subject to tensile stress and processes for the production of hollow blanks and seamless tubes with the help of such rods
DE970924C (en) Process for the manufacture of pipes and equipment for carrying out the process
DE1942589A1 (en) Process for the production of hollow bodies
DE942387C (en) Plant for the production of seamless, especially long, thick-walled pipes
AT141819B (en) Process and drawing bench for the production of seamless tubes.