WO2009125074A1 - Installation de laminage reversible de bandes d'acier - Google Patents
Installation de laminage reversible de bandes d'acier Download PDFInfo
- Publication number
- WO2009125074A1 WO2009125074A1 PCT/FR2008/000506 FR2008000506W WO2009125074A1 WO 2009125074 A1 WO2009125074 A1 WO 2009125074A1 FR 2008000506 W FR2008000506 W FR 2008000506W WO 2009125074 A1 WO2009125074 A1 WO 2009125074A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cage
- upright
- rolling direction
- rolling
- cylinders
- Prior art date
Links
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
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
- B21B31/06—Fastening stands or frames to foundation, e.g. to the sole plate
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
Definitions
- the invention relates to a rolling plant of the type comprising a reversible mill with two cages.
- the rolling of steel strips can be performed on different types of rolling plant.
- the so-called "reversible" rolling installations make it possible to roll a strip, which moves in a rolling direction, alternately in one direction and then in the other.
- the strip is rolled by passing through a rolling mill comprising, between two winder / unwinder devices, a cage or two cages arranged successively in the rolling direction.
- the two-cage reversible plants have a production capacity of 300,000 to 1,000,000 tons per year against a production capacity of 200,000 to 600,000 tons per year for single-cage reversible plants.
- Reversible installations with two cages also have the advantage of reducing the number of rolling passes in one direction and then in the other.
- Patent EP 0 618 018 B1 describes such a reversible rolling mill with two cages for cold rolling. :
- an inter-cage length located between the grips of the rolls of the two stands is not rolled to the desired thickness. Indeed, this inter-cage length has been rolled by passing through only one of the two cages, namely the cage located near the winding device / unwinder on which is fixed the end of head or tail considered .
- an end length corresponding to the sum of a service length and an inter-cage length has a thickness out of tolerances. Both end lengths should be eliminated and put to the test at the end of rolling. Rolling penalizes the performance of reversible two-cage installations.
- each cage has a rolling capacity of the order of 2400 tons.
- each cage is for example equipped with support rollers having a diameter of 1250 mm and working rolls having a diameter of 450 mm.
- each cage typically has amounts whose height is 9,000 mm and the width of 4,000 mm.
- the inter-axis distance separating the planes of symmetry of the two cages, vertical planes in which the axes of the cylinders rest, is 6,000 mm. ;
- the inter-axis distance is necessarily greater than a minimum resulting from the geometry of the cages and the installation constraints of these on civil engineering.
- the amounts of the cages reversible mills two cages include fastening ears on the civil engineering.
- An upright attachment lug forms a protuberance, in the rolling direction, beyond the vertical plane of the face of the post carrying that ear.
- the lateral face of an amount of the first cage, perpendicular to the rolling direction and oriented towards the second cage has an ear projecting towards the second cage.
- the side face of an amount of the second cage, perpendicular to the rolling direction and oriented towards the first cage has an ear projecting towards the first cage.
- Fixing ears lead to an inter-axis distance of 6 000 mm, ie at an inter-cage distance of 2 000 mm, the inter-cage distance corresponding to the distance separating the two outer lateral faces situated on each of the first and second pillars cages and facing each other.
- the attachment lugs have through bores for the passage of fasteners of the uprights on the civil engineering.
- the underside of these attachment lugs is the support surface of the amount on the civil engineering. As for it, the lower face of the upright falls below the level of the lower faces of the attachment lugs, and is located above a pit arranged in the civil engineering, under the cage, to collect the used lubricating oil. .
- JP 03-138004 discloses the use of welded extensions at each end of the strip to be rolled, and a particular opening and closing sequence of the cages and the pinch to roll the entire strip to the surface. desired thickness.
- the object of the invention is therefore to reduce the length of banded end of the strip during the operation of a reversible rolling mill with two stands.
- the subject of the invention is a rolling mill of the type comprising a reversible rolling mill with two stands, adjacent in a rolling direction, each cage comprising two holding posts for the rolls, each post resting on a support structure by the intermediate of a bearing surface and being fixed on the support structure by means of at least one rod integral with the support structure and cooperating with the upright by means of a removable fastening means.
- the support surface of each upright is provided on the lower face of the upright, without extending beyond the lateral faces of the uprights oriented in the rolling direction and comprises at least one hole opening into a hollow recess provided in the upright and having an opening opening on a side face of the upright.
- the rod secured to the support structure extends to through the hole and protrudes into the housing, and the removable fastening means is disposed within the housing.
- the rolling installation comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
- the hollow housing is a cell, the cell having an opening opening on a side face of the upright, perpendicular to a direction transverse to the rolling direction and oriented towards the outside of the cage.
- the hollow housing is a groove, the groove having an opening opening on a side face of the upright, perpendicular to a direction transverse to the rolling direction and oriented outwardly of the cage.
- the removable fastening means is a nut
- the rod is a stud
- the support structure is a concrete block
- the stud being anchored in the concrete block and inserted into the through hole of the cage jamb and the nut. being screwed on the stud.
- the installation furthermore comprises cylinder drive means comprising a gearbox comprising an input shaft intended to be coupled to a motor, first and second output shafts intended to be coupled to cylinders to be driven and at least one intermediate shaft coupling the input shaft to the first and second output shafts, and at least the axes of the output and intermediate shafts are superimposed in a vertical direction so as to have a reduced bulk in the rolling direction.
- the installation further comprises means for changing the rolls, comprising a carriage common to the first and second stands and able to be moved, in a direction perpendicular to the rolling direction, between a service position close to the first and second cages and a waiting positon away from the first and second cages, the carriage comprising at least two racks capable of carrying a crew of cylinders and arranged side by side in the rolling direction, and loading means / unloading cylinders for discharging spent cylinders out of a cage on an empty rack and loading new cylinders from a rack inside a cage.
- the carriage comprises a movable plate able to be moved parallel to the rolling direction, and said at least two racks are arranged on the moving plate.
- the carriage comprises four racks and the movable plate is adapted to be moved between first and second positions, so that in the first position of the movable plate, the racks of a first pair of racks are respectively placed in the vertical plane cylinders of the first cage and the second cage, and in the second position of the movable plate, the racks of a second pair of racks are respectively placed in the vertical plane of the cylinders of the first cage and the second cage, the carriage comprising first loading / unloading means for serving the first cage and second loading / unloading means (324) for serving the second cage, the first and second cages being able to be loaded and / or unloaded simultaneously or separately.
- the installation is capable of rolling strips with an entrance thickness of up to 10 mm and a width of up to 1600 mm, and the distance between the lateral face of an amount of the first cage, perpendicular to the rolling direction and oriented towards the second stand, and the side face of a post of the second stand, perpendicular to the rolling direction and oriented towards the first stand, is less than 1500 mm.
- the distance between the lateral face of an amount of the first stand, perpendicular to the rolling direction and oriented towards the second stand, and the lateral face of an stand of the second stand, perpendicular to the rolling direction and oriented to the first cage, is greater than the space strictly necessary for the passage of an operator for an exceptional intervention, space at least equal to 700 mm.
- FIG. 1 shows schematically a reversible rolling mill with two cages
- FIG. 2 is a side view of a reversible rolling mill with two cages according to one embodiment of the invention
- FIG. 3 is a top view of the installation of Figure 2;
- - Figure 4 is a partial view in perspective of the fastening means on the support structure of a cage of the installation of Figures 2 and 3;
- FIG. 5 is a partial view, in perspective, of an alternative embodiment of the fixing means of a cage on the support structure;
- FIG. 6 is a front view of the gearboxes of the means for driving the cylinders of the installation of FIGS. 2 and 3; and,
- FIG. 7 is a front view of an alternative embodiment of the gearboxes of the drive means of the cylinders.
- FIG. 1 schematically represents a reversible rolling mill 1 with two cages making it possible to roll a moving metal strip M in a horizontal plane in a rolling direction A.
- the band M is driven to run alternately in a positive direction (from left to right) in Figure 1) and in a negative direction (from right to left in Figure 1).
- the rolling installation 1 comprises, placed successively along the rolling direction A, a first cage 2 and a second cage 4.
- the first and second cages 2 and 4 are of the sexto type.
- Each cage 2, 4 is equipped with a pair of working rolls 6 and 7, a pair of intermediate rolls 8 and 9 and a pair of support rolls 10 and 11.
- the axes of the various rolls of a cage lie in the same vertical plane P symmetry of the cage.
- the rolling plant 1 also comprises, upstream of the first and second stands 2 and 4, a tape unwinder 12, a first winder / unwinder device 14, a clamping device 16.
- the rolling plant 1 comprises, downstream of first and second cages 2 and 4, a baffle roll 18 and a second winder / unwinder device 20.
- the first and second winder / unwinder devices 14 and 20 are respectively provided with mandrels for applying traction on the band M during its rolling so as to increase the rate of reduction of the thickness of the strip M.
- the rolling installation 1 comprises other elements, not shown but known to those skilled in the art, such as a device for preparing the head of the band M, thickness measuring means, etc.
- FIGS 2 and 3 show in more detail the rolling installation 1 according to the invention, wherein the amounts of cages are adapted to allow to minimize the inter-axis distance between the two stands, distance separating the symmetry planes P of the first and second cages 2 and 4.
- the first cage 2 comprises two lateral uprights 22 disposed on either side of the rolling axis A in a transverse direction Y.
- the two lateral uprights 22 of the cage 2 are associated with one another by means of upper rails 24.
- An upright 22 has an outer shape inscribed in a rectangular parallelepiped. It comprises a rear face 26, perpendicular to the rolling direction A and oriented towards the second cage 4; a front face 27, perpendicular to the rolling direction A and facing away from the rear face 26; a lower face 28, perpendicular to the vertical direction Z and pointing downwards; and an outer side face 30, perpendicular to the transverse direction Y and facing outwardly of the cage.
- the upright 22 rests on a support structure 25, preferably made of concrete, through its lower face 28 constituting a flat bearing surface.
- the post 22 is provided with a window 32, oblong, in the vertical direction Z.
- the post 22 therefore has an annular shape.
- the window 32 is intended to receive the means for holding the chocks of the rolls 6 to 11.
- the second cage 4 comprises a pair of uprights 42 arranged on either side of the rolling direction A and interconnected by upper rails 44.
- An upright 42 has a front face 46, perpendicular to the rolling direction A and facing the first cage 2, a rear face 47, perpendicular to the rolling direction A and facing away from the front face 46; a lower face 48, perpendicular to the vertical direction Z and pointing downwards, constituting a bearing surface of the second upright 42 on the support structure 25; and comprises an outer lateral face 50 perpendicular to the transverse direction Y and facing outwardly of the second cage 4.
- An upright 42 is of annular shape, and defines internally a window 52 for means for holding the chocks of the rolls 6 to 11.
- the rear face 26 of the first cage 2 and the front face 46 of the second cage 4 are arranged opposite one another.
- the distance separating the front 26 and rear 46 faces is the inter-cage distance D.
- the inter-cage distance D is minimized by bringing the first and second cages 2 and 4 closer to each other in the rolling direction A.
- the rear faces 26 and before 46 do not include any protrusion, in the rolling direction A, forming a protuberance towards the other cage.
- the rear faces 26 and front 46 are flat.
- an upright 22, 42 comprises hollow housings intended to receive means for fixing the upright on the support structure 25.
- a first embodiment shown in FIG. 22 comprises, in its lower part, a hollow housing forming a cell 62. This opens on the rear face 26 of the upright 22 and on the outer lateral face 30 of the upright 22.
- the upright 22 also comprises a through bore 64, d vertical axis and opening, on the one hand, on the lower face 28 of the upright 22 and, on the other hand, on a lower surface 66 of the cell 62.
- the through bore 64 allows the passage of a rod 80 of a stud, one end of which is anchored in the support structure 25 and whose other end, filtée et libre, projects out of the through bore 64, inside the cell 62, above the lower surface 66 thereof.
- a nut 82 is screwed onto the rod 80 and comes, by clamping, against the lower surface 66 of the cell 62 to fix the upright 22 on the support structure 25.
- the cell 62 forms a receiving housing of the nut 82.
- the upright 22 also includes a second cell 63 along the edge between its front face 27 and its outer lateral face 30.
- a through bore 65 opens into the cell 63 and allows the passage of a stud 80.
- a nut 82 housed in the cell 63, is screwed onto the threaded end of the rod of the stud 80 and allows, by clamping, the attachment of the upright 22 on the support structure 25 at a second point of attachment.
- an upright 42 of the second cage 4 comprises a first recess 72 opening on the front face 46 and on the outer lateral face 50 of the upright 42, and a second recess 73 opening on the rear face 47 and on the outer lateral face 50 of the upright 42.
- Through bores 74 and 75 are formed between the lower face 48 and the first and second cells 72 and 75 for the passage of studs 80.
- Nuts 82 are screwed onto the threaded ends of the rods 80 to to fix the amount 42 on the support structure 25.
- the means for fixing an amount on the support structure remain included in the size of the amount according to the rolling direction A.
- Figure 5 illustrates a second embodiment of the hollow housing.
- the hollow housing of the lower part of an upright 122 is formed so as to form a horizontal groove 162 on the outer lateral face 130 of the upright 122.
- the groove 162 extends from the front face 127 to the rear face 126 of the upright 122.
- a lower surface 166 of the groove 162 has three through bores 163, 164 and 165 which open on the lower surface 128 of the upright 122. They allow the passage of rods whose one end is anchored in the support structure 25 and whose the other end, threaded, opens into the groove 162. Nuts screwed onto the threaded ends of the rods are received in the groove 162. They allow, by clamping on the underside 166 of the groove 162, to fix the amount 122 on the support structure 25 at different attachment points.
- the safety standards of the machines and in particular to the standard EN 547 which proposes to provide a minimum space of 700 mm between two machines to allow access to knees while retaining the ability to make body movements.
- the first and second cages 2 and 4 of the sexto type have a rolling capacity of the order of 2,400 tons each.
- the bearing cylinders 10 and 11 have a diameter of 1250 mm, the intermediate cylinders 8 and 9, a diameter of 550 mm, and the working rolls 6 and 7, a diameter of 450 mm.
- Each cage 2, 4 typically has uprights 22, 24 whose height is 9000 mm and the width 4000 mm.
- the inter-cage distance D is reduced to 700 mm.
- the inter-axis distance is reduced by 1300 mm and the intercalated length of the M band is 4700 mm.
- the annual gain achieved by implementing the present invention can reach 1,000 tons of tape.
- the drive means of the work rolls, intermediate or support, depending on the type of installation have a small footprint in the rolling direction A.
- the driving means of the rolling installation comprise two gear units 200 arranged one after the other, parallel to the direction of rotation.
- rolling A the drive side of the first and second stands 2 and 4.
- the gearbox 200 comprises: an input shaft 212, coupled to a drive motor 214, and two output shafts 216 and 218, respectively coupled to each of cylinders to drive.
- a pair of extensions 220 couples the output shafts 116 and 118 and the cylinders to be driven.
- the gearbox 200 also comprises, between the input shaft 212 and the output shafts 216 and 218, at least one intermediate shaft 222 carrying a set of wheels meshing with wheels carried either by the output shafts 216 and 218, or by the input shaft 212.
- the axes of the output shafts 216 and 218 and intermediate 222 are arranged horizontally one above the other in a vertical plane, while the axis of the input shaft 212 is arranged laterally. relative to the axis of the intermediate shaft 222.
- the gearbox 200 has an "L" arrangement.
- FIG. 7 A second embodiment of the reducer equipping the installation according to the invention is shown diagrammatically in FIG. 7. According to this second embodiment, all the shafts of the shafts of the reducer 210 are arranged horizontally one above the other , in a vertical plane. The reducer 210 is vertical and has a reduced bulk in the rolling direction A.
- the cylinder change system comprises a single carriage 300 as shown in FIGS. 2 and 3.
- the carriage 300 is equipped with wheels 302 and able to be moved along rails 304, arranged in the transverse direction Y.
- the carriage 300 is moved by actuating displacement means 306 between a waiting position away from the first and second cages 2 and 4, and a service position near the first and second cages 2 and 4.
- FIG. 3 shows the carriage 300 in its waiting position away from the first and second cages 2 and 4.
- the carriage 300 comprises a movable plate 310 provided with a row of four racks 312a-d arranged side by side in the rolling direction A.
- the racks 312a and 312b serve the first cage 2 and the racks 312c serve the second cage 4.
- Each rack 312a-d is suitable for carrying a crew of rolls comprising working cylinders 6 and 7 and bearing cylinders 8 and 9.
- the two racks 312a and 312c carry a crew of new cylinders, equipped with their chocks, while the other two racks 312b and 312d are empty, waiting for the loading of the used cylinders extracted from each of the first and second cages 2 and 4.
- the movable plate 310 is displaceable by translation in the rolling direction A, along rails 316 provided on the carriage 300.
- the movable plate 310 is moved relative to the carriage 300 by actuating means, for example rack (not shown) equipping the cart 300.
- rack not shown
- the vertical plane of symmetry of the racks 312b and 312d coincides with the plane of symmetry respectively of the first and second cages 2 and 4.
- First and second pusher / tractor devices 322 and 324, provided on the carriage 300, are able to extract by pulling the used cylinders out of the first and second cage 2 and 4 to arrange them in the racks 312b and 312d.
- the vertical symmetry planes of the racks 312a and 312c coincide with the symmetry planes respectively of the first and second cages 2 and 4.
- the first and second pusher / tractor devices 322 and 324 can then be actuated in thrust to introduce new cylinders, waiting in the racks 312a and 312c, in each of the first and second cages 2 and 4.
- the carriage 300 is moved to its standby position away from the mill.
- the first and second pusher / tractor devices 322 and 324 are simultaneously actuated in tension to extract the used and thrust cylinders to introduce the new cylinders. A quick change of cylinders is thus ensured.
- an asynchronous cylinder changing process is possible for which the pusher / tractor devices 322 and 324 are operated separately to allow the change of the cylinders of one of the mill stands.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880128566.5A CN101990472B (zh) | 2008-04-11 | 2008-04-11 | 钢带的可逆轧制设备 |
US12/937,399 US20110061435A1 (en) | 2008-04-11 | 2008-04-11 | Plant for the reversible rolling of steel strip |
PCT/FR2008/000506 WO2009125074A1 (fr) | 2008-04-11 | 2008-04-11 | Installation de laminage reversible de bandes d'acier |
EP08787941.7A EP2259881B1 (fr) | 2008-04-11 | 2008-04-11 | Installation de laminage reversible de bandes d'acier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2008/000506 WO2009125074A1 (fr) | 2008-04-11 | 2008-04-11 | Installation de laminage reversible de bandes d'acier |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009125074A1 true WO2009125074A1 (fr) | 2009-10-15 |
Family
ID=39870643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2008/000506 WO2009125074A1 (fr) | 2008-04-11 | 2008-04-11 | Installation de laminage reversible de bandes d'acier |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110061435A1 (fr) |
EP (1) | EP2259881B1 (fr) |
CN (1) | CN101990472B (fr) |
WO (1) | WO2009125074A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106583444B (zh) * | 2017-01-22 | 2018-11-09 | 北京科技大学 | 一种复合式多功能实验轧机机组及其可逆轧机 |
CN107159711B (zh) * | 2017-07-26 | 2019-01-04 | 宝钢股份黄石涂镀板有限公司 | 一种内部分区的可逆轧机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061441A2 (fr) * | 1981-03-25 | 1982-09-29 | VOEST-ALPINE Aktiengesellschaft | Installation pour le laminage à chaud de matières à laminer en forme de bande ou de plaque |
EP0088745A1 (fr) * | 1982-03-05 | 1983-09-14 | VOEST-ALPINE Aktiengesellschaft | Installation pour le laminage à chaud de matières à laminer en forme de bande ou de plaque |
US5706690A (en) * | 1995-03-02 | 1998-01-13 | Tippins Incorporated | Twin stand cold reversing mill |
EP0618018B1 (fr) * | 1993-03-27 | 2001-08-08 | SMS Demag AG | Installation compacte réversible pour laminer à froid de matières à laminer en forme de feuillard |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2237040A (en) * | 1939-06-08 | 1941-04-01 | Edward T Peterson | Three-high mill housing |
GB1033182A (en) * | 1963-02-19 | 1966-06-15 | Davy & United Eng Co Ltd | Rolling mills |
JPH07121404B2 (ja) * | 1986-10-13 | 1995-12-25 | 株式会社日立製作所 | 圧延機のロ−ル駆動装置 |
CA2138319C (fr) * | 1993-12-22 | 1998-08-25 | Terence M. Shore | Laminoir monobloc en une ligne |
AT406644B (de) * | 1997-11-14 | 2000-07-25 | Voest Alpine Ind Anlagen | Präzisionswalzverfahren |
US6408667B1 (en) * | 2000-10-26 | 2002-06-25 | Bethlehem Steel Corporation | Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom |
JP4135351B2 (ja) * | 2001-10-12 | 2008-08-20 | 株式会社日立製作所 | 多列圧延機及びその使用方法並びに圧延設備 |
FR2846579B1 (fr) * | 2002-11-05 | 2006-05-05 | Vai Clecim | Procede pour elargir la gamme de production d'une installation de laminage de produits metalliques et installation pour la mise en oeuvre du procede |
CN2663041Y (zh) * | 2003-11-05 | 2004-12-15 | 上海兴森特殊钢有限公司 | 具有双平衡块的周期式双管冷轧管机用曲柄连杆机构 |
DE102004007831A1 (de) * | 2004-02-18 | 2005-09-01 | Sms Demag Ag | Verfahren und Einrichtung zum Wechseln von Walzensätzen in Walzgerüsten einer Walzstraße |
-
2008
- 2008-04-11 CN CN200880128566.5A patent/CN101990472B/zh not_active Expired - Fee Related
- 2008-04-11 US US12/937,399 patent/US20110061435A1/en not_active Abandoned
- 2008-04-11 WO PCT/FR2008/000506 patent/WO2009125074A1/fr active Application Filing
- 2008-04-11 EP EP08787941.7A patent/EP2259881B1/fr not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061441A2 (fr) * | 1981-03-25 | 1982-09-29 | VOEST-ALPINE Aktiengesellschaft | Installation pour le laminage à chaud de matières à laminer en forme de bande ou de plaque |
EP0088745A1 (fr) * | 1982-03-05 | 1983-09-14 | VOEST-ALPINE Aktiengesellschaft | Installation pour le laminage à chaud de matières à laminer en forme de bande ou de plaque |
EP0618018B1 (fr) * | 1993-03-27 | 2001-08-08 | SMS Demag AG | Installation compacte réversible pour laminer à froid de matières à laminer en forme de feuillard |
US5706690A (en) * | 1995-03-02 | 1998-01-13 | Tippins Incorporated | Twin stand cold reversing mill |
Also Published As
Publication number | Publication date |
---|---|
CN101990472A (zh) | 2011-03-23 |
CN101990472B (zh) | 2013-01-30 |
US20110061435A1 (en) | 2011-03-17 |
EP2259881B1 (fr) | 2013-05-29 |
EP2259881A1 (fr) | 2010-12-15 |
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