EP0432532A2 - Train de laminoir à haute performance pour barres ou fils - Google Patents

Train de laminoir à haute performance pour barres ou fils Download PDF

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Publication number
EP0432532A2
EP0432532A2 EP90122276A EP90122276A EP0432532A2 EP 0432532 A2 EP0432532 A2 EP 0432532A2 EP 90122276 A EP90122276 A EP 90122276A EP 90122276 A EP90122276 A EP 90122276A EP 0432532 A2 EP0432532 A2 EP 0432532A2
Authority
EP
European Patent Office
Prior art keywords
rolling
horizontal
vertical
mill
roll
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
EP90122276A
Other languages
German (de)
English (en)
Other versions
EP0432532B2 (fr
EP0432532A3 (en
EP0432532B1 (fr
Inventor
Alfred Müller
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 Schloemann Siemag AG
Schloemann Siemag 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6395137&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0432532(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0432532A2 publication Critical patent/EP0432532A2/fr
Publication of EP0432532A3 publication Critical patent/EP0432532A3/de
Application granted granted Critical
Publication of EP0432532B1 publication Critical patent/EP0432532B1/fr
Publication of EP0432532B2 publication Critical patent/EP0432532B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/0815—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel from flat-rolled products, e.g. by longitudinal shearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/005—Cantilevered roll stands
    • 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
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0021—Cutting or shearing the product in the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls

Definitions

  • the invention relates to a high-performance steel bar / wire mill, in particular for the single-core, twist-free rolling of rolling stock, each with a plurality of roll stands or rolling units comprising a roughing train, at least one intermediate train and a subsequent finishing train with, if appropriate, a subsequent finishing block.
  • the intermediate streets are split up and equipped with scaffolds in a horizontal-vertical arrangement with appropriate devices for draft-free rolling. This is particularly important for the creation of garret dimensions with a good surface and tolerance.
  • roller guides between the scaffolding are used as far as possible to achieve a perfect surface quality.
  • the object of the invention is to optimize the individual road sections of the steel bar / wire mill, in particular to increase their availability, to roll the wire or the bar steel in all road sections without twists and to reduce the plant costs by the optimized use of rolling mill with certain predetermined properties.
  • the roll change in the high-performance steel bar / wire mill takes place in accordance with the minimized caliber series in each street section, namely in the roughing train by means of a crane tool, in the intermediate line by means of a manipulator and in the finishing train by means of a quick-change device, if necessary additionally by means of a manipulator, all roll stands or Roll units in the individual road sections have rollers mounted on the fly.
  • the design of the entire rolling mill with roll stands or rolling units with flying roll shafts, on which the rolling rings are mounted allows short changeover times, ie no long conversion times are necessary, so that the mill is practically always ready for rolling. No interchangeable scaffolds are required.
  • the roll change can take place according to the frequency and the necessity taking into account the wear condition and the quality assurance, whereby the most suitable and optimally adapted to the changing process and the roll weight taking into account changing devices will.
  • the result shows a twist-free rolling of the rolling stock in the entire rolling mill with high availability and a rolled product with high quality and quality.
  • intermediate and intermediate mill have horizontal-vertical compact stands in an alternating sequence, that the finishing train seen in the rolling direction initially consists of horizontal and vertical compact stands, followed by a vertical - And horizontal rolling unit having a rolling block, the horizontal rolling unit of which can only be used for separating rolling of the rolling stock in two separate rolling cores, while the vertical rolling unit can be used for normal rolling of the rolling stock and that the finishing block consists of several horizontal and vertical rolling units in a 45 ° arrangement
  • Roll rings exist, which are attached to a basic frame.
  • the overall length of the rolling mill is reduced because the compact stands can be positioned close together; no roller tables between the scaffolding are required. Due to the standardization of the optimized roll change, the storage of spare parts is low. The changeover times are reduced.
  • the proposed use of a two-stand vertical-horizontal mini-block with overhung rollers is particularly advantageous as a replacement for the tilting and rotating stands previously used if, for example, the single-wire rolled rolling stock is to be subjected to a separating roller. Because in the case of separation rolling of the rolling stock, only the horizontal rolling unit of the stand is used for the separation stitch, while in the case of normal rolling only the vertical roller unit is in operation. The other roller unit is simply left empty or the corresponding roller cassette is removed.
  • the horizontal-vertical rolling block for the last passages of the separating roll be followed by two duo roll stands with the rolling sequence from the oval caliber to the round caliber. So if the horizontal rolling unit of the horizontal-vertical rolling block in the finishing train is used for separating rolling of the rolling stock - the vertical rolling unit of the rolling block does not perform any rolling work - each strand of the rolling stock separated into two roll cores is rolled up in the horizontal stands by means of rolls with two calibers each Rolled far enough that the formed rolled stock can then be driven onto the cooling bed as finished bar steel.
  • a further advantageous embodiment of the invention is shown in that the vertical-horizontal rolling block of the finishing train for the last passages of the separating roll is followed by two compact rolling blocks each having a horizontal and a vertical rolling unit.
  • the use of two two-stand compact rolling blocks for the last two passes after the rolling of the rolling stock enables the horizontal duo stands, which are arranged downstream, to be replaced.
  • each rolling wire is rolled without twists.
  • the entire rolling mill can therefore also be equipped with overhung roller rings in the case of separating rolling. Tungsten carbide rolling rings with a long service life can also be used.
  • the set-up times and the maintenance times of the rolling mill can be reduced even further.
  • the use of the compact scaffolding allows a short construction of the finishing train in the sense of a reduced space requirement.
  • a C-shaped carrier tool pivotably attached to a crane bridge is used to change the rolling rings of at least the horizontal compact stands , at the lower center of gravity of which a common changing device for the rolling rings is arranged. Since the rolling rings in this section of the road have a very high weight of about 150 to 450 kilograms, on the other hand they have a comparatively long service life of several days with maximum permissible rolling capacity, the use of the roller changing device proposed here is optimally adapted to the rolling technology in the roughing mill, both with regard to the structural effort and the time required for the changing device.
  • a quick-change device which has a liftable and rotatable, if appropriate, displaceably designed and arranged on a movable change carriage change device for the two corresponding rolling rings of each vertical and horizontal stand.
  • the rolling rings in these sections of the road are subject to high loads, among other things, due to the high rolling speed and, despite the best choice of materials such as tungsten carbide, only have an average life of around one to two days with maximum rolling performance.
  • the invention with the proposed quick-change device does justice to the need for quick and accurate roller change that can be controlled from a control room.
  • a further improving embodiment of the invention provides that the roll changing device has at least two receiving devices pivotable about its axis of rotation for a mounting frame receiving at least the rolling rings.
  • the maintenance personnel are given the opportunity to hold new rolling rings on a building site ready for assembly, which are inserted into the receiving device of the mobile changing device.
  • the receiving device is then pivoted accordingly and the finished rolling rings are placed on the site for further handling.
  • the change car is driven back into the road section.
  • the individual processes when changing the roll can thus be carried out using conventional control or Control elements are fully automated.
  • the rolling fittings can be inserted into the mounting frame and that the corresponding rolling rings can be fixed in the operating position. This results in an even more complete pre-assembly on the building site, which ultimately the roller change times are also shortened and the availability of these road sections increases. Overall, the availability of the entire steel bar / wire mill is improved. In this sense, it is also expedient if, according to a further proposal of the invention, the front plate has centering and clamping pieces for fixing the mounting frame on the front plate of the compact frame. A mounting frame designed in this regard is explained in more detail in the special description below.
  • the high-performance steel bar / rolling mill is shown with the roughing train 1, which consists of roll stands arranged side by side in the rolling line with the stand sequence horizontal (H) / vertical (V), followed by the intermediate train 2, which also consists of side by side Roll stands with the horizontal (H) / vertical (V) stand sequence, which is followed by finishing train 3.
  • the finishing train 3, which is the intermediate line in the wire production, is followed by the finishing block 4 with the cooling device (not shown in more detail), usually consisting of a water cooling section with a driver / winding layer and the Stelmor system.
  • the finishing train 3 is followed by a cooling or storage bed 6.
  • FIG. 2 and 3 show in an enlarged detail the finishing train 3, in which three rolling stands with the stand sequence horizontal / vertical / horizontal are followed by a rolling block 7, which consists of two rolling units in the sequence vertical / horizontal.
  • two horizontal duo stands 8 are arranged downstream of the vertical / horizontal rolling block 7.
  • the rollers 9 of these duo stands each have at least two calibers 10, 11. It can be clearly seen that in the horizontal roller unit 7 ′′ of the rolling block 7, the rolling stock 12 is separated from a single rolling strand onto two rolling strands 12 ′, 12 ′′ and each of these rolling strands in the two subsequent horizontal stands 8 one Oval / round rolling is subjected.
  • the vertical rolling unit 7 'of the roll block 7 runs along empty or that the corresponding roll cassette is removed.
  • 3 shows that in the case of separating rolling of the rolling stock 12 with the help of the horizontal rolling unit 7 ′′ of the rolling block 7, two two-stand rolling blocks 13, 14 are arranged downstream, specifically for each rolling strand 12 ′ or 12 ′′. one roll each block 13 and 14.
  • Each rolling block 13, 14 has two rolling units 13 ', 13''; 14 ', 14''in the vertical / horizontal roller sequence.
  • the tilting or rotating stands usually used at this point are replaced by the vertical / horizontal rolling block 7 in the finishing train 3.
  • the horizontal duo stands shown in FIG. 2 are replaced by the vertical / horizontal rolling blocks 13, 14.
  • the crane tools 15 for changing the rolling rings 18, in particular the horizontal stands (FIG. 4) in the roughing street 1, consist of a C-shaped carrier tool 19 which is pivotably suspended on a crane bridge 20.
  • a handwheel-operated roll changing device 21 is arranged, which receives the corresponding rolling rings 18 of the roll stand together.
  • a lever system 22 is provided with an end projection 23 which engages in the caliber 24 of the roller rings 18 when the handwheel is rotated and the guide nut 25 is thus moved longitudinally.
  • the roller changing device 21 'for the roller rings of the vertical stands can, for example, be of the usual design Ropes of a crane are raised (Fig. 4b). In the simplest version it is also possible that the crane cables can be attached directly to the roller rings (Fig. 4c).
  • FIG. 5 shows the use of a manipulator 16 for changing the rolling rings 31, 32 of a vertical compact stand 33 (FIG. 5a) or a horizontal compact stand 34 (FIG. 5b) in the intermediate street 2.
  • the manipulator 16 is on a carrier bridge 26 attached, and connectable to a hydraulic system, not shown.
  • the manipulator usually consists of joint systems 27, 28, so that the head 29 of the manipulator, which carries the changing device 35 for the roller rings 31, 32, can be moved on all sides.
  • the head 29 of the manipulator 16 can be controlled by the operating personnel in any direction of movement with the aid of a control lever 30, so that the rolling rings 31, 32 are pulled off the respective rolling stand in the shortest possible time and can be exchanged for new rolling rings 31 'or 32', respectively store the site 36 prepared.
  • a quick-change device 17, which is shown in FIG. 6, is provided for changing the rolling rings 46 in the finishing train 3.
  • the quick-change device 17 consists of an interchangeable carriage 37 which can be moved by a piston-cylinder linkage 38 on a conventional rail arrangement between the roll stands 42, 43 and a construction site 39.
  • the changing device has a lifting and rotating receiving device 40, the movement of which is indicated by arrows and which, according to FIG. 6a, has two diametrically opposite roller carriers 44, each with a receiving opening 41 at least for the corresponding rolling rings 46 of the vertical compact stand 42 Receiving opening can thus carry the finished rolling rings of the roll stand 42 while the other receiving opening accommodates the new rolling rings prepared on site 39.
  • the receiving device 40 for the rolling rings of the horizontal compact stand 43 is designed somewhat differently according to FIG. 6b, in that the two opposite roller carriers 44 on the interchangeable carriage can be moved so far according to the movement arrow that there is sufficient space for mounting or removing the rolling rings if the receiving device 40 is rotated accordingly on the change carriage.
  • FIG. 7 A particularly advantageous mounting system is shown in FIG. 7, namely a mounting frame 45 which can be inserted into the receiving openings 41 of the quick-change device 17 in FIG. 6.
  • the corresponding rolling rings 46, 46 ' are fixed in the mounting position 45 in the installation position and thus in the operating position.
  • the rolling fittings 47, 47 'of the inlet and outlet sides are firmly inserted in the mounting frame.
  • the rolling rings are fixed in the installation position with the aid of a conventional and therefore not shown lever system, the mounting hooks 48, 48 'of which are placed on the circumference of each rolling ring or on the caliber of the rolling ring for secure positioning.
  • Centering pieces 49 and clamping devices 50 are provided on the front plate 52. These measures serve to center and fix the assembly frame on the front plate of the respective compact stand of the finishing train 3.
  • the quick-change device shown in FIG. 6 can be used even more effectively for the rolling rings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Crushing And Grinding (AREA)
EP90122276A 1989-12-09 1990-11-22 Train de laminoir à haute performance pour barres ou fils Expired - Lifetime EP0432532B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940736 1989-12-09
DE3940736A DE3940736A1 (de) 1989-12-09 1989-12-09 Hochleistungs-stabstahl/drahtstrasse

Publications (4)

Publication Number Publication Date
EP0432532A2 true EP0432532A2 (fr) 1991-06-19
EP0432532A3 EP0432532A3 (en) 1993-07-07
EP0432532B1 EP0432532B1 (fr) 1996-04-24
EP0432532B2 EP0432532B2 (fr) 2004-11-03

Family

ID=6395137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122276A Expired - Lifetime EP0432532B2 (fr) 1989-12-09 1990-11-22 Train de laminoir à haute performance pour barres ou fils

Country Status (5)

Country Link
US (1) US5123269A (fr)
EP (1) EP0432532B2 (fr)
JP (1) JPH03189003A (fr)
AT (1) ATE137146T1 (fr)
DE (2) DE3940736A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788845A1 (fr) * 1996-02-12 1997-08-13 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé pour laminer des produits longs, et train de laminage pour la mise en oeuvre du procédé
EP0873798A1 (fr) * 1997-04-25 1998-10-28 Morgan Construction Company Laminoir finisseur à sorties multiples

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018219874B4 (de) 2018-11-20 2020-08-20 Sms Group Gmbh Schnellwechselbares Walzgerüst
US11478831B2 (en) 2020-03-04 2022-10-25 Primetals Technologies USA LLC Mechanical high speed roll change system for use with robotic roll change system
CN114130830B (zh) * 2021-11-26 2024-03-22 中冶华天工程技术有限公司 一种平立轧机的换辊装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1214474A (fr) * 1958-01-29 1960-04-08 Demag Ag Train continu de laminoir et accessoires pour ce train
FR1545751A (fr) * 1967-09-13 1968-11-15 Wtz Feikeramischen Ind Dispositif pour l'échange d'outils mobiles démontables, en particulier de disques de laminage
DE2032294A1 (de) * 1970-06-30 1972-01-05 Demag Ag, 4100 Duisburg Drahtwalzwerk in Blockbauform
EP0142879A1 (fr) * 1983-11-11 1985-05-29 DANIELI & C. OFFICINE MECCANICHE S.p.A. Appareil pour échanger des cylindres et dispositif sur des cages de laminoir ayant des cylindres supportés d'un côté
JPS6349312A (ja) * 1986-08-19 1988-03-02 Nippon Steel Corp 圧延ロ−ル交換方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1833376A (en) * 1930-10-29 1931-11-24 Ira J Simmons Rolling mill
CH487681A (it) * 1968-09-30 1970-03-31 Pomini Farrel Spa Treno continuo di laminazione
DE1933273B1 (de) * 1969-07-01 1971-01-28 Suedwestfalen Ag Stahlwerke Walzverfahren zur Herstellung von Draht oder anderem stabfoermigem Walzgut
BE784118A (fr) * 1971-06-05 1972-09-18 Schloemann Ag Procede de laminage de petits fers dans un laminoir a grande capacite, et laminoir a petits fers pour la mise en oeuvre du procede
DE2908409C2 (de) * 1979-03-03 1985-12-05 Friedrich Kocks GmbH & Co, 4010 Hilden Walzstraße zum Walzen von Stäben oder Draht
US4357819A (en) * 1980-06-11 1982-11-09 Structural Metals, Inc. Method and apparatus for simultaneously forming three uniform metal rounds
IT1187613B (it) * 1985-12-16 1987-12-23 Danieli Off Mecc Metodo per laminare sezioni multiple e laminati cosi' ottenuti
IT210782Z2 (it) * 1986-08-01 1989-01-11 Danieli & C Offine Meccaniche Unita' di laminazione a sbalzo.
US4706485A (en) * 1986-12-15 1987-11-17 Morgan Construction Company Carrier module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1214474A (fr) * 1958-01-29 1960-04-08 Demag Ag Train continu de laminoir et accessoires pour ce train
FR1545751A (fr) * 1967-09-13 1968-11-15 Wtz Feikeramischen Ind Dispositif pour l'échange d'outils mobiles démontables, en particulier de disques de laminage
DE2032294A1 (de) * 1970-06-30 1972-01-05 Demag Ag, 4100 Duisburg Drahtwalzwerk in Blockbauform
EP0142879A1 (fr) * 1983-11-11 1985-05-29 DANIELI & C. OFFICINE MECCANICHE S.p.A. Appareil pour échanger des cylindres et dispositif sur des cages de laminoir ayant des cylindres supportés d'un côté
JPS6349312A (ja) * 1986-08-19 1988-03-02 Nippon Steel Corp 圧延ロ−ル交換方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 7201, Derwent Publications Ltd., London, GB; Class M21, AN 72-01485T (01) & JP-B-46 043 979 (SUMITOMO METAL INDS) 27. Dezember 1971 *
FIRMENPROSPEKT NR. 2000.03.86 DER FIRMA DANIELI & C. BUTTRIO IT Seiten 1 - 8 '"ESC" rolling units' *
IRON AND STEEL ENGINEER Bd. 59, Nr. 11, November 1982, PITTSBURGH US Seiten 52 - 55 L. FORNI 'Roll stands in modern bar and rod mills' *
PATENT ABSTRACTS OF JAPAN vol. 12, no. 267 (M-722)(3114) 26. Juli 1988 & JP-A-63 049 312 ( NIPPON STEEL ) 2. März 1988 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788845A1 (fr) * 1996-02-12 1997-08-13 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé pour laminer des produits longs, et train de laminage pour la mise en oeuvre du procédé
US5862699A (en) * 1996-02-12 1999-01-26 Danieli & C. Officine Meccaniche Spa Method for the rolling of long products and rolling line which performs that method
EP0873798A1 (fr) * 1997-04-25 1998-10-28 Morgan Construction Company Laminoir finisseur à sorties multiples
US5893288A (en) * 1997-04-25 1999-04-13 Morgan Construction Company Multiple outlet finishing mill
CN1093010C (zh) * 1997-04-25 2002-10-23 摩根建设公司 多出口精轧机

Also Published As

Publication number Publication date
DE3940736A1 (de) 1991-06-13
DE59010301D1 (de) 1996-05-30
ATE137146T1 (de) 1996-05-15
EP0432532B2 (fr) 2004-11-03
JPH03189003A (ja) 1991-08-19
EP0432532A3 (en) 1993-07-07
US5123269A (en) 1992-06-23
EP0432532B1 (fr) 1996-04-24

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