EP1008400A3 - Verfahren zur Verminderung trompetenförmiger Aufweitungen am vorderen Rohrende - Google Patents

Verfahren zur Verminderung trompetenförmiger Aufweitungen am vorderen Rohrende Download PDF

Info

Publication number
EP1008400A3
EP1008400A3 EP99250417A EP99250417A EP1008400A3 EP 1008400 A3 EP1008400 A3 EP 1008400A3 EP 99250417 A EP99250417 A EP 99250417A EP 99250417 A EP99250417 A EP 99250417A EP 1008400 A3 EP1008400 A3 EP 1008400A3
Authority
EP
European Patent Office
Prior art keywords
leading end
pipe
trumpet
shaped widenings
reducing
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
EP99250417A
Other languages
English (en)
French (fr)
Other versions
EP1008400B1 (de
EP1008400A2 (de
Inventor
Torsten Frank
Frank Salomon
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 EP1008400A2 publication Critical patent/EP1008400A2/de
Publication of EP1008400A3 publication Critical patent/EP1008400A3/de
Application granted granted Critical
Publication of EP1008400B1 publication Critical patent/EP1008400B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Metal Rolling (AREA)
  • Electric Cable Installation (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Verminderung trompetenförmiger Aufweitungen am vorderen Rohrende beim Schrägwalzen dünnwandiger Rohre auf einem Asselwalzwerk, bei dem die am vorderen Ende zwischen zwei zylindrischen Bereichen konisch abgesetzte in ihrer Ausgangsstellung entsprechend positionierte Dornstange beim Eintreten des vorderen Hohlblockbereiches in das Asselwalzwerk axial gesteuert in Walzrichtung verschoben wird. Dabei werden die beim Anwalzen des Rohres auf die zu walzende Wanddicke eingestellten Asselwalzen unter Beibehaltung ihres zwischen dem Konus der Dornstange und dem Glätteil jeder Asselwalze gebildeten Walzspaltes zeitgleich mit dem Verschieben der Dornstange und analog zum ansteigenden Verlauf des Konus der Dornstange auseinandergefahren und gleichzeitig so geschwenkt, daß der Glätteil der Asselwalze annähernd parallel zum Konus der Dornstange verläuft.
EP99250417A 1998-12-10 1999-11-29 Verfahren zur Verminderung trompetenförmiger Aufweitungen am vorderen Rohrende Expired - Lifetime EP1008400B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19858955A DE19858955C2 (de) 1998-12-10 1998-12-10 Verfahren zur Verminderung trompetenförmiger Aufweitungen am vorderen Rohrende
DE19858955 1998-12-10

Publications (3)

Publication Number Publication Date
EP1008400A2 EP1008400A2 (de) 2000-06-14
EP1008400A3 true EP1008400A3 (de) 2003-08-20
EP1008400B1 EP1008400B1 (de) 2005-01-05

Family

ID=7891905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99250417A Expired - Lifetime EP1008400B1 (de) 1998-12-10 1999-11-29 Verfahren zur Verminderung trompetenförmiger Aufweitungen am vorderen Rohrende

Country Status (3)

Country Link
EP (1) EP1008400B1 (de)
AT (1) ATE286437T1 (de)
DE (2) DE19858955C2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019123836A1 (de) 2019-09-05 2021-03-11 Sms Group Gmbh Schrägwalzaggregat sowie Verfahren zum Anstellen des Walzkalibers eines Schrägwalzaggregats
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020927A1 (de) * 1980-06-03 1981-12-10 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Schraegwalzwerk zum reduzieren des durchmessers von rohren
DE3622678A1 (de) * 1985-07-12 1987-01-15 Kocks Technik Verfahren und vorrichtung zum querwalzen nahtloser rohrluppen
DE4428530A1 (de) * 1994-08-12 1996-02-22 Kocks Technik Verfahren und Walzgerüst zum Schrägwalzen von Rohren
EP0882526A2 (de) * 1997-06-03 1998-12-09 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zur Vermeidung oder Verminderung trompetenförmiger Aufweitungen am Rohrende beim Schrägwalzen von dünnwandigen Rohren

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020927A1 (de) * 1980-06-03 1981-12-10 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Schraegwalzwerk zum reduzieren des durchmessers von rohren
DE3622678A1 (de) * 1985-07-12 1987-01-15 Kocks Technik Verfahren und vorrichtung zum querwalzen nahtloser rohrluppen
DE4428530A1 (de) * 1994-08-12 1996-02-22 Kocks Technik Verfahren und Walzgerüst zum Schrägwalzen von Rohren
EP0882526A2 (de) * 1997-06-03 1998-12-09 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zur Vermeidung oder Verminderung trompetenförmiger Aufweitungen am Rohrende beim Schrägwalzen von dünnwandigen Rohren
DE19724233A1 (de) * 1997-06-03 1998-12-10 Mannesmann Ag Verfahren und Vorrichtung zur Vermeidung oder Verminderung trompetenförmiger Aufweitungen am Rohrende beim Schrägwalzen von dünnwandigen Rohren

Also Published As

Publication number Publication date
ATE286437T1 (de) 2005-01-15
DE19858955A1 (de) 2000-06-21
DE19858955C2 (de) 2000-09-28
EP1008400B1 (de) 2005-01-05
DE59911403D1 (de) 2005-02-10
EP1008400A2 (de) 2000-06-14

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