FR2419776A1 - PROCESS AND INSTALLATION FOR HOT ROLLING OF SEAMLESS TUBES - Google Patents

PROCESS AND INSTALLATION FOR HOT ROLLING OF SEAMLESS TUBES

Info

Publication number
FR2419776A1
FR2419776A1 FR7901700A FR7901700A FR2419776A1 FR 2419776 A1 FR2419776 A1 FR 2419776A1 FR 7901700 A FR7901700 A FR 7901700A FR 7901700 A FR7901700 A FR 7901700A FR 2419776 A1 FR2419776 A1 FR 2419776A1
Authority
FR
France
Prior art keywords
mandrel
rolling mill
hot rolling
rolling
installation
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.)
Pending
Application number
FR7901700A
Other languages
French (fr)
Inventor
Hans Eversberg
Manfred Hien
Karl Oberem
Gerd Pfeiffer
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 FR2419776A1 publication Critical patent/FR2419776A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/78—Control of tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process

Abstract

Fabrication de tubes par laminage à chaud d'une loupe tubulaire sur un mandrin. Pendant le laminage dans les trains 41 à 46 du laminoir 4 la loupe 14 s'étire et glisse sur le mandrin 13. Quand son extrémité arrière arrive au laminoir (position 5), ce glissement affecte pratiquement toute sa longueur engagée sur le mandrin 13 auquel elle n'adhère donc pas. On en profite pour retenir 13, la loupe étirée en étant extraite par les cylindres 71, 72 d'un extracteur 7. 13 est ensuite libéré, il est avancé par les cylindres du laminoir 4 et arrive ainsi à un entraîneur 6 qui se referme sur lui pour l'envoyer sur un transporteur de retour. Elimination de tout dispositif supplémentaire de dégagement des mandrins.Manufacture of tubes by hot rolling a tube magnifier on a mandrel. During rolling in the trains 41 to 46 of the rolling mill 4, the magnifying glass 14 stretches and slides on the mandrel 13. When its rear end reaches the rolling mill (position 5), this sliding affects practically all of its length engaged on the mandrel 13 to which it therefore does not adhere. We take the opportunity to retain 13, the magnifying glass stretched by being extracted by the cylinders 71, 72 of an extractor 7. 13 is then released, it is advanced by the rolls of the rolling mill 4 and thus arrives at a driver 6 which closes on him to send it on a return carrier. Elimination of any additional chuck release device.

FR7901700A 1978-03-15 1979-01-15 PROCESS AND INSTALLATION FOR HOT ROLLING OF SEAMLESS TUBES Pending FR2419776A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782811801 DE2811801A1 (en) 1978-03-15 1978-03-15 PROCESS AND EQUIPMENT FOR HOT ROLLING SEAMLESS TUBES

Publications (1)

Publication Number Publication Date
FR2419776A1 true FR2419776A1 (en) 1979-10-12

Family

ID=6034788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7901700A Pending FR2419776A1 (en) 1978-03-15 1979-01-15 PROCESS AND INSTALLATION FOR HOT ROLLING OF SEAMLESS TUBES

Country Status (5)

Country Link
JP (1) JPS54126654A (en)
DE (1) DE2811801A1 (en)
FR (1) FR2419776A1 (en)
GB (1) GB2016338B (en)
IT (1) IT1110067B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469962A1 (en) * 1979-11-21 1981-05-29 Vallourec METHOD AND DEVICE FOR PRODUCING A SOLDER-FREE STEEL TUBE BY HOT ROLLING ON CHUCK

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5775209A (en) * 1980-10-30 1982-05-11 Toshiba Corp Pipe piercing mill and its tension controlling method
JPS5786165A (en) * 1980-11-17 1982-05-29 Sony Corp Cassette holder locking device
JPS57134205A (en) * 1981-02-14 1982-08-19 Ishikawajima Harima Heavy Ind Co Ltd Rolling device for pipe
JPS5933659A (en) * 1982-08-16 1984-02-23 Sony Corp Cassette ejecting device
JPS62172555A (en) * 1986-01-24 1987-07-29 Kyowa Electronic Instr Corp Ltd Ejection device for magnetic recording and reproducing device
DE102008039454B4 (en) * 2008-08-25 2011-01-27 Sms Meer Gmbh Method for producing a seamless steel tube and rolling mill for carrying out the method
IT1395593B1 (en) * 2009-06-29 2012-10-16 Danieli Off Mecc LAMINATION PROCEDURE AND RELATIVE LONGITUDINAL MULTI CAGE LAMINATE SHEET OF CONTINUED AND CABLE TYPES FOR CABLE BODIES

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR419568A (en) * 1910-08-20 1911-01-10 Escaut Et Meuse D Demandrating device for hollow body rolling mills
GB239781A (en) * 1925-02-27 1925-09-17 Robert Hutchison Improvements in, and apparatus for, the manufacture of metal tubes, or other tubular articles
GB814116A (en) * 1956-03-23 1959-05-27 Maximilianshuette Eisenwerk Improvements in the continuous rolling of tubes
DE2345056A1 (en) * 1972-09-08 1974-03-21 Vallourec Lorraine Escaut METHOD AND DEVICE FOR MANUFACTURING SEAMLESS PIPES FROM METAL

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR419568A (en) * 1910-08-20 1911-01-10 Escaut Et Meuse D Demandrating device for hollow body rolling mills
GB239781A (en) * 1925-02-27 1925-09-17 Robert Hutchison Improvements in, and apparatus for, the manufacture of metal tubes, or other tubular articles
GB814116A (en) * 1956-03-23 1959-05-27 Maximilianshuette Eisenwerk Improvements in the continuous rolling of tubes
DE2345056A1 (en) * 1972-09-08 1974-03-21 Vallourec Lorraine Escaut METHOD AND DEVICE FOR MANUFACTURING SEAMLESS PIPES FROM METAL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469962A1 (en) * 1979-11-21 1981-05-29 Vallourec METHOD AND DEVICE FOR PRODUCING A SOLDER-FREE STEEL TUBE BY HOT ROLLING ON CHUCK
EP0029786A1 (en) * 1979-11-21 1981-06-03 VALLOUREC Société Anonyme dite. Process and device for producing a steel tube without welding joint by hot-rolling on a mandrel

Also Published As

Publication number Publication date
JPS5536403B2 (en) 1980-09-20
GB2016338B (en) 1982-04-21
DE2811801A1 (en) 1979-09-20
IT1110067B (en) 1985-12-23
IT7919209A0 (en) 1979-01-11
GB2016338A (en) 1979-09-26
JPS54126654A (en) 1979-10-02

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