AU4376389A - A process for the continuous drawing of metal pipes - Google Patents

A process for the continuous drawing of metal pipes

Info

Publication number
AU4376389A
AU4376389A AU43763/89A AU4376389A AU4376389A AU 4376389 A AU4376389 A AU 4376389A AU 43763/89 A AU43763/89 A AU 43763/89A AU 4376389 A AU4376389 A AU 4376389A AU 4376389 A AU4376389 A AU 4376389A
Authority
AU
Australia
Prior art keywords
joints
continuous drawing
strength
metal pipes
draws
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.)
Granted
Application number
AU43763/89A
Other versions
AU618139B2 (en
Inventor
Theodor Niggemann
Ulrich Reiter
Peter Tietz
Georg Wischmeyer
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.)
KM Kabelmetal AG
Original Assignee
KM Kabelmetal 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 KM Kabelmetal AG filed Critical KM Kabelmetal AG
Publication of AU4376389A publication Critical patent/AU4376389A/en
Application granted granted Critical
Publication of AU618139B2 publication Critical patent/AU618139B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

In the continuous drawing of, for example, seamless metal tubes joined together by butt welding, the joints generally do not have the required strength to transmit the drawing forces occurring during the drawing process. The method according to the invention first of all brings the joints up to the same strength as the adjoining tube material and then draws the total length produced to a uniform wall thickness. The equal strength can here preferably be achieved by heat treatment in the region of the joints.
AU43763/89A 1988-09-27 1989-10-25 A process for the continuous drawing of metal pipes Ceased AU618139B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3832714A DE3832714C2 (en) 1988-09-27 1988-09-27 Process for the continuous drawing of metal pipes

Publications (2)

Publication Number Publication Date
AU4376389A true AU4376389A (en) 1991-06-13
AU618139B2 AU618139B2 (en) 1991-12-12

Family

ID=6363773

Family Applications (1)

Application Number Title Priority Date Filing Date
AU43763/89A Ceased AU618139B2 (en) 1988-09-27 1989-10-25 A process for the continuous drawing of metal pipes

Country Status (6)

Country Link
EP (1) EP0423378B1 (en)
AT (1) ATE116878T1 (en)
AU (1) AU618139B2 (en)
DE (1) DE3832714C2 (en)
ES (1) ES2065965T3 (en)
GR (1) GR3014923T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023479A1 (en) * 2000-05-10 2001-11-15 Sms Demag Ag Process for producing pipes by pulling over a stopper
DE10151827A1 (en) * 2001-10-20 2003-04-30 Nexans Process for the continuous production of a longitudinally welded metal tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122935A1 (en) * 1971-05-10 1972-11-23 Stahl- und Röhrenwerk Reisholz GmbH, 4000 Düsseldorf Continuous pipe drawing - using floating plug
PL86352B1 (en) * 1973-05-30 1976-05-31
NL8200731A (en) * 1982-02-24 1983-09-16 Estel Demka B V Cutting and welding device for steel wire - includes clamping electrodes which separate coils of wire used for reinforced concrete
DE3739730C1 (en) * 1987-11-24 1988-09-01 Klaus-Peter Dipl-Ing Uhlmann Method for drawing seamless metal tubes
DE3805838C2 (en) * 1987-11-24 1997-03-13 Km Europa Metal Ag Method and device for drawing seamless metal pipes

Also Published As

Publication number Publication date
GR3014923T3 (en) 1995-05-31
EP0423378A1 (en) 1991-04-24
DE3832714A1 (en) 1990-03-29
EP0423378B1 (en) 1995-01-11
DE3832714C2 (en) 1998-07-16
AU618139B2 (en) 1991-12-12
ATE116878T1 (en) 1995-01-15
ES2065965T3 (en) 1995-03-01

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