EP0913211A3 - Verfahren und Vorrichtung zum Verringern der Wanddicke eines Hohlblocks - Google Patents

Verfahren und Vorrichtung zum Verringern der Wanddicke eines Hohlblocks Download PDF

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Publication number
EP0913211A3
EP0913211A3 EP98250360A EP98250360A EP0913211A3 EP 0913211 A3 EP0913211 A3 EP 0913211A3 EP 98250360 A EP98250360 A EP 98250360A EP 98250360 A EP98250360 A EP 98250360A EP 0913211 A3 EP0913211 A3 EP 0913211A3
Authority
EP
European Patent Office
Prior art keywords
wall thickness
hollow block
reducing
cross
rolling mill
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Withdrawn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
EP98250360A
Other languages
English (en)
French (fr)
Other versions
EP0913211A2 (de
Inventor
Karl-Heinz Häusler
Hans Joachim Dr.-Ing. Pehle
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
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP0913211A2 publication Critical patent/EP0913211A2/de
Publication of EP0913211A3 publication Critical patent/EP0913211A3/de
Withdrawn legal-status Critical Current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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods 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
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0028—Drawing the rolled product

Landscapes

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

Abstract

Die Erfindung betrifft ein Arbeitsverfahren zur Verringern der Wanddicke am Endes eines in ein Schrägwalzwerk einzuführenden Hohlblockes, zwecks Vermeiden von Rohraufweitungen an den Enden der schräggewalzten, insbesondere dünnwandigen Rohre. Dabei wird die Verringerung der Wanddicke des Hohlblockendes auf eine im wesentlichen dem schräggewalzten Rohr entsprechende Wanddicke in einer dem Schrägwalzwerk nebengeordneten Einrichtung vor dem Einlegen des Hohlblockes in das Schrägwalzwerk vorgenommen.
EP98250360A 1997-10-30 1998-10-13 Verfahren und Vorrichtung zum Verringern der Wanddicke eines Hohlblocks Withdrawn EP0913211A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748920 1997-10-30
DE1997148920 DE19748920C2 (de) 1997-10-30 1997-10-30 Verfahren und Vorrichtung zum Verringern der Wanddicke eines Hohlblocks

Publications (2)

Publication Number Publication Date
EP0913211A2 EP0913211A2 (de) 1999-05-06
EP0913211A3 true EP0913211A3 (de) 2001-05-30

Family

ID=7847712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98250360A Withdrawn EP0913211A3 (de) 1997-10-30 1998-10-13 Verfahren und Vorrichtung zum Verringern der Wanddicke eines Hohlblocks

Country Status (2)

Country Link
EP (1) EP0913211A3 (de)
DE (1) DE19748920C2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107008768A (zh) * 2017-04-18 2017-08-04 浙江益大特钢有限公司 不锈钢无缝钢管的制造方法
DE102024002391A1 (de) * 2024-07-23 2026-01-29 Zhozef Rotenberg Verfahren zum Strecken von mittel- und dünnwandigen Luppen in einem Mehrwalzen-Schrägwalzwerk unter dem Einfluss einer inneren axialen Zugkraft

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH170512A (de) * 1933-04-13 1934-07-15 Singer Fritz Verfahren und Vorrichtung zum Strecken von vollen und hohlen Metallwerkstücken.
GB2007569A (en) * 1977-11-11 1979-05-23 Accles & Pollock Ltd Method of Forming a Counterbore in the End of a Tube
DE3001959A1 (de) * 1980-01-21 1981-07-23 Kocks Technik GmbH & Co, 4000 Düsseldorf Stossbank zum herstellen von rohrluppen
US5125251A (en) * 1988-07-05 1992-06-30 Mannesmann Ag Method and apparatus to reduce the outer diameter and wall thickness of a hollow tube blank by rolling
DE4328002C1 (de) * 1993-08-20 1994-08-04 Schumag Ag Verfahren zur Vorbereitung eines dickwandigen Rohrrohlings für einen nachfolgenden Kaskadenzug
US5642638A (en) * 1994-08-24 1997-07-01 Mannesmann Aktiengesellschaft Process for the rolling of hallow ingots on a assel rolling mill

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE686767C (de) * 1937-10-23 1940-01-16 Roehrenwerke Akt Ges Deutsche Fuer Schraegwalzwerke zur Herstellung von Rohren bestimmter Dorn
GB1184707A (en) * 1966-07-05 1970-03-18 Csepel Vas Es Femmuvek A Method and Apparatus for Producing Seamless Rolled Tubes
DE4428530C5 (de) * 1994-08-12 2005-11-10 Kocks Technik Gmbh & Co. Kg Verfahren und Walzgerüst zum Schrägwalzen von Rohren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH170512A (de) * 1933-04-13 1934-07-15 Singer Fritz Verfahren und Vorrichtung zum Strecken von vollen und hohlen Metallwerkstücken.
GB2007569A (en) * 1977-11-11 1979-05-23 Accles & Pollock Ltd Method of Forming a Counterbore in the End of a Tube
DE3001959A1 (de) * 1980-01-21 1981-07-23 Kocks Technik GmbH & Co, 4000 Düsseldorf Stossbank zum herstellen von rohrluppen
US5125251A (en) * 1988-07-05 1992-06-30 Mannesmann Ag Method and apparatus to reduce the outer diameter and wall thickness of a hollow tube blank by rolling
DE4328002C1 (de) * 1993-08-20 1994-08-04 Schumag Ag Verfahren zur Vorbereitung eines dickwandigen Rohrrohlings für einen nachfolgenden Kaskadenzug
US5642638A (en) * 1994-08-24 1997-07-01 Mannesmann Aktiengesellschaft Process for the rolling of hallow ingots on a assel rolling mill

Also Published As

Publication number Publication date
DE19748920C2 (de) 2003-10-09
EP0913211A2 (de) 1999-05-06
DE19748920A1 (de) 1999-05-12

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