FR2442674A1 - Procede de reduction de tubes et laminoir a froid pour la mise en oeuvre de ce procede - Google Patents

Procede de reduction de tubes et laminoir a froid pour la mise en oeuvre de ce procede

Info

Publication number
FR2442674A1
FR2442674A1 FR7928854A FR7928854A FR2442674A1 FR 2442674 A1 FR2442674 A1 FR 2442674A1 FR 7928854 A FR7928854 A FR 7928854A FR 7928854 A FR7928854 A FR 7928854A FR 2442674 A1 FR2442674 A1 FR 2442674A1
Authority
FR
France
Prior art keywords
tube
run
rolls
reached
dead centre
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
FR7928854A
Other languages
English (en)
Other versions
FR2442674B1 (fr
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 filed Critical Mannesmann AG
Publication of FR2442674A1 publication Critical patent/FR2442674A1/fr
Application granted granted Critical
Publication of FR2442674B1 publication Critical patent/FR2442674B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • B21B21/02—Rollers therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • B21B21/005—Pilgrim-step tube-rolling, i.e. pilger mills with reciprocating stand, e.g. driving the stand

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne un procédé de réduction de tubes. Le procédé de réduction est effectué sur un mandrin fixe au moyen de cylindres cannelés montés de manière à pouvoir tourner dans une cage à va-et-vient et qui libèrent le tube au moins avant que le point mort de sortie ne soit atteint, c'est-à-dire avant la fin de la course d'aller qui va de l'extrémité la plus épaisse à l'extrémité la plus mince du mandrin, le tube etant poussé en avant et mis en rotation pendant cette libération qui est disponible comme temps de manoeuvre, les cylindres cannelés subissant une rotation de plus de 330 degrés pendant la course d'aller comme pendant la course de retour. Au voisinage du point mort d'entrée, les cylindres cannelés libèrent le tube pendant un temps notablement plus court que le temps de manoeuvre. Application à la réduction du diamètre des tubes.
FR7928854A 1978-11-30 1979-11-22 Procede de reduction de tubes et laminoir a froid pour la mise en oeuvre de ce procede Granted FR2442674A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782852102 DE2852102A1 (de) 1978-11-30 1978-11-30 Verfahren zum reduzieren von rohren
DE19792904585 DE2904585A1 (de) 1978-11-30 1979-02-05 Kaltpilgerwalzwerk

Publications (2)

Publication Number Publication Date
FR2442674A1 true FR2442674A1 (fr) 1980-06-27
FR2442674B1 FR2442674B1 (fr) 1983-11-18

Family

ID=25776691

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7928854A Granted FR2442674A1 (fr) 1978-11-30 1979-11-22 Procede de reduction de tubes et laminoir a froid pour la mise en oeuvre de ce procede

Country Status (4)

Country Link
JP (1) JPS5577913A (fr)
AT (1) AT370015B (fr)
DE (2) DE2852102A1 (fr)
FR (1) FR2442674A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500338A1 (fr) * 1981-02-24 1982-08-27 Mannesmann Ag Procede pour le laminage de tubes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708943C1 (de) * 1987-03-18 1987-12-03 Mannesmann Ag Verfahren sowie Dreh- und Vorschubantrieb zur Durchfuehrung des Verfahrens zum Walzen von Rohren oder Stangen nach einem Pilgerschrittverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232372A1 (fr) * 1973-06-07 1975-01-03 Mannesmann Meer Ag
FR2258905A1 (fr) * 1974-01-24 1975-08-22 Mannesmann Ag
DE2461303A1 (de) * 1974-12-23 1976-07-01 Mannesmann Ag Walzwerk zum kaltwalzen von rohren
DE2704148A1 (de) * 1977-02-02 1978-08-03 Willi Oppermann Verfahren zum kontinuierlichen reduzieren von rohren
FR2384559A1 (fr) * 1977-03-21 1978-10-20 Sandvik Ab Procede pour la fabrication de tubes par laminage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232372A1 (fr) * 1973-06-07 1975-01-03 Mannesmann Meer Ag
FR2258905A1 (fr) * 1974-01-24 1975-08-22 Mannesmann Ag
DE2461303A1 (de) * 1974-12-23 1976-07-01 Mannesmann Ag Walzwerk zum kaltwalzen von rohren
DE2704148A1 (de) * 1977-02-02 1978-08-03 Willi Oppermann Verfahren zum kontinuierlichen reduzieren von rohren
FR2384559A1 (fr) * 1977-03-21 1978-10-20 Sandvik Ab Procede pour la fabrication de tubes par laminage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500338A1 (fr) * 1981-02-24 1982-08-27 Mannesmann Ag Procede pour le laminage de tubes

Also Published As

Publication number Publication date
DE2852102A1 (de) 1980-06-04
AT370015B (de) 1983-02-25
JPS5577913A (en) 1980-06-12
ATA752179A (de) 1982-07-15
DE2904585A1 (de) 1980-08-07
FR2442674B1 (fr) 1983-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse