EP0796676A3 - Plugs for tube drawing machines - Google Patents

Plugs for tube drawing machines Download PDF

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Publication number
EP0796676A3
EP0796676A3 EP97250083A EP97250083A EP0796676A3 EP 0796676 A3 EP0796676 A3 EP 0796676A3 EP 97250083 A EP97250083 A EP 97250083A EP 97250083 A EP97250083 A EP 97250083A EP 0796676 A3 EP0796676 A3 EP 0796676A3
Authority
EP
European Patent Office
Prior art keywords
pipe
pulling
plug
plugs
tube drawing
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.)
Withdrawn
Application number
EP97250083A
Other languages
German (de)
French (fr)
Other versions
EP0796676A2 (en
Inventor
Karl-Heinz Ing. Häusler
Peter Dipl.-Ing. Kalkenings
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.)
SMS Siemag AG
Original Assignee
Mannesmann AG
SMS Demag 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, SMS Demag AG filed Critical Mannesmann AG
Publication of EP0796676A2 publication Critical patent/EP0796676A2/en
Publication of EP0796676A3 publication Critical patent/EP0796676A3/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/16—Mandrels; Mounting or adjusting same

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

Die Erfindung betrifft einen Ziehstopfen in einer Vorrichtung zum Ziehen eines nahtlosen Metallrohres durch eine Ziehmatritze, wobei der aus einem Hartmetall gefertigte Ziehstopfen innerhalb des Rohres fliegend angeordnet und mit Hilfe eines separat und lösbar mit dem Ziehstopfens verbunden im wesentlichen zylindrischen Führungsteils in einer stabilen Lage nahezu zentrisch im Rohr geführt und durch die Bewegung der Rohrlänge in seine für den Ziehvorgang erforderliche Lage transportiert wird. Dabei ist das Führungsteil (12,18) des kurz bauenden Ziehstopfens (11) aus einem einfacheren Werkstoff ausgebildet (11).

Figure 00000001
The invention relates to a pulling plug in a device for pulling a seamless metal pipe through a drawing die, the pulling plug made of a hard metal being arranged overhung within the pipe and, with the help of a separately and detachably connected to the pulling plug, essentially cylindrical guide part in a stable position almost centrally is guided in the pipe and is transported into its position required for the drawing process by the movement of the pipe length. The guide part (12, 18) of the short-sized drawing plug (11) is made of a simpler material (11).
Figure 00000001
EP97250083A 1996-03-22 1997-03-19 Plugs for tube drawing machines Withdrawn EP0796676A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996112991 DE19612991A1 (en) 1996-03-22 1996-03-22 Pulling plugs for pipe drawing machines
DE19612991 1996-03-22

Publications (2)

Publication Number Publication Date
EP0796676A2 EP0796676A2 (en) 1997-09-24
EP0796676A3 true EP0796676A3 (en) 2000-03-29

Family

ID=7790141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97250083A Withdrawn EP0796676A3 (en) 1996-03-22 1997-03-19 Plugs for tube drawing machines

Country Status (2)

Country Link
EP (1) EP0796676A3 (en)
DE (1) DE19612991A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1310796B1 (en) * 1999-12-20 2002-02-22 Danieli Ct Maskin Spa PROCESS AND PLANT FOR COLD DRAWING OF METAL TUBES
CN101244434B (en) * 2008-03-13 2010-06-16 朱国良 Technique head of cold drawing steel tube

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1432375A (en) * 1972-09-19 1976-04-14 Std Services Ltd Plugs for use in tube-drawing
US4057992A (en) * 1976-04-09 1977-11-15 Granges Nyby Ab Mandrel for cold drawing and/or sizing tubes
DE2623385A1 (en) * 1976-05-25 1977-12-15 Kabel Metallwerke Ghh Tube drawing system with dies and mandrels - pulls tube through successive dies using floating mandrels of different sizes
DE3405641A1 (en) * 1984-02-17 1985-08-22 Schumag Gmbh, 5100 Aachen METHOD FOR DRAWING A SEAMLESS METAL TUBE
US4745787A (en) * 1984-05-02 1988-05-24 National Research Development Corporation Plug drawing
JPS63309322A (en) * 1987-06-11 1988-12-16 Sumitomo Light Metal Ind Ltd Production of metal pipe having inside groove

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1432375A (en) * 1972-09-19 1976-04-14 Std Services Ltd Plugs for use in tube-drawing
US4057992A (en) * 1976-04-09 1977-11-15 Granges Nyby Ab Mandrel for cold drawing and/or sizing tubes
DE2623385A1 (en) * 1976-05-25 1977-12-15 Kabel Metallwerke Ghh Tube drawing system with dies and mandrels - pulls tube through successive dies using floating mandrels of different sizes
DE3405641A1 (en) * 1984-02-17 1985-08-22 Schumag Gmbh, 5100 Aachen METHOD FOR DRAWING A SEAMLESS METAL TUBE
US4745787A (en) * 1984-05-02 1988-05-24 National Research Development Corporation Plug drawing
JPS63309322A (en) * 1987-06-11 1988-12-16 Sumitomo Light Metal Ind Ltd Production of metal pipe having inside groove

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 148 (M - 812) 11 April 1989 (1989-04-11) *

Also Published As

Publication number Publication date
DE19612991A1 (en) 1997-10-02
EP0796676A2 (en) 1997-09-24

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