EP0707902A1 - Walzanlage - Google Patents

Walzanlage Download PDF

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Publication number
EP0707902A1
EP0707902A1 EP95402229A EP95402229A EP0707902A1 EP 0707902 A1 EP0707902 A1 EP 0707902A1 EP 95402229 A EP95402229 A EP 95402229A EP 95402229 A EP95402229 A EP 95402229A EP 0707902 A1 EP0707902 A1 EP 0707902A1
Authority
EP
European Patent Office
Prior art keywords
chock
cylinder
chocks
cylinders
rolling mill
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
EP95402229A
Other languages
English (en)
French (fr)
Other versions
EP0707902B1 (de
Inventor
Bernard Dumas
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.)
Clecim SAS
Original Assignee
Kvaerner Metals Clecim SA
Clecim SAS
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 Kvaerner Metals Clecim SA, Clecim SAS filed Critical Kvaerner Metals Clecim SA
Publication of EP0707902A1 publication Critical patent/EP0707902A1/de
Application granted granted Critical
Publication of EP0707902B1 publication Critical patent/EP0707902B1/de
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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • 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
    • 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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B2031/206—Horizontal offset of work rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • 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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/203—Balancing rolls

Definitions

  • the subject of the invention is an installation for rolling a flat product such as a strip of ferrous or non-ferrous metal and can be applied to hot or cold rolling.
  • a rolling mill generally comprises a set of superimposed rolls placed inside a fixed support cage having two spaced apart uprights in which are formed openings or "windows" having two vertical parallel sides.
  • the product to be laminated is passed, in a longitudinal direction, between two relatively small diameter working rolls which bear, on the side opposite to the product, each on one or more large diameter supporting rolls.
  • the "Quarto" type rolling mills comprise two working rolls each associated with a support roll.
  • intermediate cylinders are interposed between each working cylinder and the associated support cylinder.
  • the axes of all the cylinders are normally placed in the same clamping plane substantially perpendicular to the longitudinal axis of travel of the product and which generally coincides with a transverse median plane of the cage.
  • Each cylinder is carried by a shaft having two ends rotatably mounted, by means of bearings, on two chocks threaded, respectively in the two windows of the amounts of the cage.
  • the rolling of the product is carried out by exerting a clamping force applied between the chocks of the support rolls and transmitted to the product by the working rolls.
  • Each cylinder must therefore be able to move vertically for tightening so as to adapt to the thickness of the product and to variations in diameter resulting, for example, from wear.
  • the chocks of each cylinder are provided with sliding faces cooperating with guide faces provided on the two sides of each window.
  • the guide faces of their chocks can be closer together and are generally formed on projecting parts formed in the central part of each window.
  • the cylinders must be able to be changed either in the event of wear or deterioration, or to use cylinders of different diameter.
  • the cylinders can be introduced into or removed from the cage by sliding, parallel to their axes, on rails fixed to the uprights of the cage and on which the chocks rest, for example by means of pebbles. It is also possible to replace the two working cylinders at the same time, the chocks of the upper cylinder resting on the chocks of the lower cylinder which, themselves, move on the fixed rails.
  • the chocks of the cylinders must therefore slide not only vertically, but also horizontally between the guide faces provided on the two sides of the window.
  • the working rolls bear, on one side, on the product being scrolling and, on the other side, on a support cylinder or an intermediate cylinder and this results in a misalignment, even very small, of the axis of a working cylinder relative to the direction of travel of the product and the axis of the corresponding support cylinder can result in an axial displacement effect of the cylinder which is pushed towards one of the uprights of the cage, the associated support cylinder being, generally, subjected to an effect axial displacement in the other direction.
  • the cylinders are retained by axial stops, but this results, however, in friction with a hysteresis effect which can disturb the thickness control normally carried out by the clamping system.
  • This effect can be offset by giving the support cylinders a domed profile, possibly variable.
  • cylinders acting in the opposite direction are also used, which bear directly on the cage or on the chocks of the associated support cylinder, in order to bring the two chocks of the working cylinders closer to each other and achieve a so-called "negative" bending.
  • bending is carried out in both directions by double-acting cylinders.
  • each chock means of lateral thrust consisting of jacks or deformable faces disposed on the two sides of the chock and bearing horizontally on the cage, each chock being thus secured to the corresponding amount by lateral thrust on the two sides of the window (DE-A-3,807,654).
  • the chocks are secured, in service, with the uprights of the cage, by lateral support on the two sides of the window. Consequently, if it is desired to camber the rolls to compensate for bending, this effect must be adjusted in advance, the spacing of the chocks cannot be modified during rolling.
  • each chock is provided with camber cylinders and lateral jacks whose chambers are connected together so that an increase in pressure in the direction corresponding to the spacing of chocks determines an increase in the force lateral thrust and therefore a blockage of the chock.
  • camber cylinders not only to compensate for the bending of the support rolls, but also to vary, during rolling, the profile of the air gap and the stress distribution in the transverse direction so as to correct flatness defects detected downstream.
  • the invention relates to a new arrangement making it possible to carry out all the adjustments necessary to carry out rolling under the best conditions, even during rolling, by immediately correcting all the defects detected.
  • the invention makes it possible to rigorously control the position and, in particular, the parallelism of the axes of the cylinders, without ceasing to apply corrective bending forces in these directions in one direction or the other.
  • the arrangements according to the invention also make it possible to make the positioning of the chocks all the corrections necessary to minimize the axial thrusts, compensate for the bending of the support cylinders, and correct the flatness defects.
  • the invention therefore applies, in general, to an installation for rolling a flat product comprising a support cage comprising two spaced apart uprights between which are placed at least two superimposed working rolls rotating respectively around axes placed substantially in a clamping plane perpendicular to the direction of travel of the product, and limiting a gap for the passage of the product, and a means for clamping the cylinders bearing on the fixed cage, each cylinder being carried by a shaft having two ends mounted rotary, by means of bearings, respectively on two chocks threaded in two windows provided respectively in the two uprights of the cage and mounted sliding along fixed guide faces, parallel to the clamping plane P and formed on both sides of each window, games being left on either side of each chock to allow the assembly and disassembly of e each cylinder with its chocks, each chock being associated with lateral thrust means against said guide faces for taking up, in service, said games.
  • each chock of a working cylinder is associated with two intermediate parts interposed respectively between the two sides of the chock and the corresponding guide faces and on which are mounted means for bending the working cylinders taking support on the chocks at least in a positive direction of spacing of the chocks, the said intermediate parts being kept applied with the possibility of sliding without play, parallel to the clamping plane, respectively along the corresponding guide faces of the window, and lateral thrust means are interposed between at least one of said intermediate parts and the corresponding side of the chock so as to bear on the guide face corresponding to push the chock, on the opposite side, against the other intermediate piece and the other guide face, the latter constituting a permanent lateral holding face for positioning the axis of the cylinder with the possibility of sliding the chock with the two intermediate parts associated parallel to said lateral retaining face, under the action of the cambering means.
  • retaining means of adjustable thickness are interposed between at least the intermediate piece placed on the side opposite to the lateral thrust means and the side facing the chock, said retaining means defining, on each window, a virtual side for holding the chock, the position of which can be adjusted by varying the thickness of said retaining means.
  • each window of an upright is provided with two planar guide faces, parallel to the clamping plane and each extending over the entire height of the window, so as to include the chocks of all the cylinders, the latter being each associated with two intermediate parts fitted with means for holding sliding without play along said guide faces and on which are mounted lateral pushing means constituting, on one side, an application means and, on the other, a adjustable means for retaining the corresponding chock.
  • the two intermediate pieces placed on either side of the chock are each associated with adjustable stroke thrust means interposed respectively between said intermediate piece and the side facing the chock , the thrust means placed on the side of the guide face against which is applied the chock being adjustable in position so as to define a virtual face for lateral support of the chock.
  • the rolling mill can be provided with means for measuring the axial thrust exerted, in one direction or the other, by one or the other of the ends of a cylinder on the corresponding amount of the cage and the respective positions of the virtual retaining faces of the two chocks are determined by adjusting the retaining means, as a function of the measurement of the axial thrust so as to determine an orientation of the axis of the cylinder capable of canceling said axial thrust measured.
  • the invention also covers many particularly advantageous constructive provisions which are the subject of the subclaims.
  • Figure 1 is a schematic view in elevation of a Quarto type rolling mill.
  • Figure 2 is a schematic top view of the rolling mill, partially broken away.
  • Figure 3 is a schematic top view of a working cylinder provided with its alignment adjustment means.
  • Figure 4 is an elevational view of an improved rolling mill according to the invention.
  • Figure 5 is a detail view showing, in elevation, the chocks of two superimposed working rolls.
  • Figure 6 is a top view, in partial section, along the line AA, of Figure 5.
  • Figure 7 is a partial view, in elevation, of another embodiment.
  • Figures 8 and 9 are, respectively, a side view and a top view of the embodiment of Figure 7.
  • a rolling stand 1 comprising two spaced vertical uprights 11, 11 ', fixed on a bed base 10 or else, directly, on a foundation, and connected by a cross 10 '.
  • the rolling mill is of the Quarto type and comprises two working rolls 2, 2 ′, limiting an air gap in which the product to be laminated M passes and bearing, respectively, on the side opposite to the product M, each on a support cylinder 3, 3 '.
  • Each working cylinder 2 is rotatably mounted on a central shaft having two ends 21 respectively rotating in aligned bearings 22 defining the axis of rotation x'x of the cylinder.
  • the bearings 22 are mounted respectively in support chocks 4 which are inserted in windows 12 formed respectively in the two uprights 11 of the cage 1.
  • each support cylinder 3 is rotatably mounted around its axis y'y on a shaft whose ends 31 rotate in bearings 32 mounted in chocks 5 threaded in the windows 12, the axes of all the cylinders being placed substantially in the same clamping plane P constituting a median plane of the cage.
  • clamping means 14 such as screws or jacks, mounted on the cage 1 and bearing on the chocks 5 of one of the support cylinders 3.
  • the chocks To allow the cylinders to be clamped, the chocks must be slidably mounted along guide faces parallel to said plane P.
  • the guide faces of the working chocks are usually formed on projecting parts, the cylinders having a smaller diameter.
  • each window 12 of the cage is limited by two flat faces 13a, 13b which extend over the entire height of the window so as to each constitute a single guide face for the chocks of all the cylinders.
  • the chocks 4 of the working rolls and, preferably, the chocks 5 of the support cylinders are each placed between two intermediate parts 6a, 6b, respectively 60a, 60b, which are applied and held against the guide faces 13a, 13b of the window 12 with a possibility of sliding without play.
  • this game can be canceled by pushing means 7 interposed between at least one of the intermediate parts 6b and the face opposite the chock 4 so to push it towards the guide face opposite 13a which therefore constitutes a permanent lateral holding face of the corresponding cylinder 2.
  • the two lateral faces 13a, 13'a placed on the same side of the plane P on the windows 12, 12 'thus define a reference plane P1 for the positioning of the axes x'x and y'y of the working rolls 2, 2 'and support 3, 3'.
  • the sliding mounting of the intermediate parts 6a, 6b for guiding the chocks 4 of the working rolls 2 makes it possible to place on them bending cylinders 81 of the said rolls 2 which are associated with oil supply means, the assembly constituting a hydraulic cambering block which, contrary to the usual arrangements, therefore moves with the chock along the guide faces 13a, 13b.
  • each chock 4 it is particularly advantageous to interpose retaining means of adjustable thickness between each chock 4 and the intermediate piece 6a to which it is applied.
  • hydraulic cylinders 70a, 70b are used, placed, respectively, on either side of each chock 4 and which can be adjusted in pressure and in position.
  • the jacks 70b, interposed between each chock 4 and the intermediate piece 6b bear on the latter and the corresponding side 13b of the window to push the chock 4 towards the opposite side 13a and therefore constitute the means of application of each chock 4 on the guide face 13a of the upright 11.
  • the pressure exerted by the jacks 70b is, however, adjusted so as to be only sufficient to cancel the games, but limited enough to avoid clamping the chock on the amounts of the cage and thus allow the sliding of the intermediate parts 6a, 6b under the action of the cambering means 8.
  • the jacks 70a bearing on the intermediate piece 6a can be adjusted in position so as to constitute a retaining means of adjustable thickness which makes it possible to adjust the distance between the lateral side 41 chock 4 and the guide face 13a.
  • the ends of the two jacks 70a facing the chock 4 define a virtual holding face of the chock, the position of which can be adjusted by varying the stroke of the jacks 70a.
  • each cylinder could be applied against a reference plane P1 defined by two fixed guide faces 13a, 13'a
  • the positions of the virtual retaining faces A, A ', relative to the guide faces 13a, 13'a, of the two uprights 11, 11' and, consequently, of give the axis x'x of the cylinder 2 a determined direction which, if necessary, can be slightly angularly offset relative to the plane P2 passing through the guide faces 13a, 13'a, of the two uprights 11, 11 '.
  • the rolling mill is of the "Quarto" type and therefore comprises two working rolls 2, 2 ', associated with two support rollers 3, 3', whose axes are placed substantially in a vertical clamping plane P which constitutes a median plane transverse of the stand 1 of the rolling mill, this comprising two uprights 11, 11 ′, provided with windows 12, 12 ′, in which the chocks of the various cylinders are threaded.
  • the tightening of the cylinders is carried out by a screw or jack system 14 bearing, in the example shown, on the chocks 5 of the upper support cylinder 3, while the chocks 5 'of the lower support cylinder bear directly on the bed base 10.
  • Each chock 4 of a working cylinder 2 is placed between two intermediate parts 6a, 6b, and is provided with two ears 42 on which bear positive or negative cambering means of the cylinder.
  • cambering means consist, as usual, of small jacks housed, with their supply and evacuation pipes, in the intermediate parts 6a, 6b, which thus each constitute a hydraulic cambering block.
  • each chock 4 is provided with two ears 42 which engage with play in notches 62 formed respectively in the central part of each intermediate piece 6a, 6b.
  • Each intermediate piece 6 is provided, on its lateral face turned towards the chock, with two pairs of jacks 70 with a horizontal axis, placed respectively above and below the notch 62 and bearing on the corresponding side face 41 of the chock 4.
  • the jacks 70 placed on either side of the chock, act in opposite directions and can therefore be single acting.
  • the supply lines which have not been shown in FIGS. 4 and 5, are formed inside the intermediate parts 6 which thus constitute mobile hydraulic blocks.
  • the horizontal thrusts exerted by the jacks 70 ensure a joining of each chock 4 with the intermediate pieces 6a, 6b, which frame it and therefore move vertically with the chock by sliding without play, along the faces guide 13a, 13b, of the window 12.
  • each intermediate piece 6 is provided, on each side, with two pairs of rollers 64 which are mounted to rotate about axes parallel to the axis of the cylinder and can roll on the guide faces 13a, 13b, formed on along the two lateral sides of the window 12 and parallel to the clamping plane P.
  • Each intermediate piece 6 can be kept applied against the upright 11, for example by means of hooks sliding in grooves.
  • the clearance (e) which is left between the lateral sides 41 of each chock and the opposite faces 61 of each piece 6 can be relatively large, so as to allow possible adjustments of the orientation of the axis x'x of the cylinder. relative to the guide faces 13.
  • the chocks remain threaded on the trunnions and move with the cylinder while the intermediate parts 6a, 6b, are kept applied to the guide faces 13 of the cage by the pairs of rollers 64, 64 '.
  • the notches 62 simply have to be a little wider than the ears 42 of the chocks so as to simply provide the clearance necessary for the engagement of the ears 42 in the notches 62 during the positioning of the cylinder with its chocks inside the cage.
  • the camber cylinders are housed in bores made on the intermediate parts associated with each working chock (4, 40).
  • the negative cambering cylinders (81, 81 ') which are supported, in a conventional manner, on the chocks 5, 50, of the corresponding support cylinders 3, 3', are thus housed in bores 63, 63 ', formed on the external side of each working chock, respectively upper 4 and lower 40, facing the corresponding bearing chock 5, 50.
  • the positive bending is carried out, in a known manner, by jacks 82 interposed between the two working chocks 4, 40.
  • the positive bending cylinders 82 are housed in bores 65 formed on the internal side, facing the upper chock 4, of each intermediate piece 6 'associated with the lower working chock 40.
  • each jack 82 is supported on a pusher 83 which is slidably mounted vertically in a bore 66 passing through the lower part of the intermediate piece 6 of the upper chock 4 and which comes to bear on the corresponding ear 42 to apply the latter against the upper side of the notch 62 under the action of the jack 82, the intermediate piece 6 being held by the negative camber jacks 81 which bear on the chock 5 of the upper support cylinder 3.
  • a pusher 84 in the form of a jack, coaxial and opposite to the negative camber jack 81 ', the chambers of the two cylinders 84, 81', communicating with each other.
  • the pressure applied to the cylinder 81 'for the negative bending determines the lifting of the pusher 84 for the application of the lug 42' against the upper side of the notch 62 'and the take-up of the play.
  • the two clearance take-up pushers 83, 84 are thus actuated by the positive 82 and negative bending cylinders 81, 81 '.
  • the positive 82 and negative 81, 81 ′ cambering cylinders are pressurized and push the pushers 83, 84, which apply each lug 42, 42 ′, against the upper face of the corresponding notch 62, 62 '.
  • each chock 4, 40 being secured to the corresponding hydraulic blocks 6, 6 '.
  • the positive 82 and negative 81, 81 ′ cambering cylinders, as well as the pushers 83, 84, placed on each side of the chock are aligned, respectively, in two directions parallel to the plane P and at equal distance from this one.
  • all the cylinders are supplied at the same time and therefore act in opposite directions, balancing each other.
  • sections of rails 43 which extend between the two uprights of the cage and which move with the intermediate parts 6, 6 ′ are placed inside the notches 62.
  • the support cylinders can be disassembled in a similar manner, the corresponding intermediate parts 60a, 60b being supported by the jacks 15, 15 '.
  • pairs of pushers 83 and 84 will also be used, so as to associate a pusher to each cylinder.
  • the chocks 5, 50, of the support cylinders 3, 3 ' can be mounted in a conventional manner in the windows 12, 12', of the cage. In this case, the invention applies only to the working rolls 2, 2 '. Since the horizontal push cylinders 70 are adjustable in position, it is possible, as we have seen, to adjust the positions of the virtual retaining faces to cancel the axial thrusts resulting from a possible angular offset of each cylinder of work in relation to its support cylinder.
  • each chock 5, 50 of a support cylinder 3, 3 ' is associated with two intermediate parts 60a, 60b, interposed between the lateral faces 51a, 51b, chock 5 and the guide faces 13a, 13b, of the upright 11 which extend practically over the entire height of the window 12.
  • the cage 1 is also provided with two pairs of jacks 15, 15 'allowing the height adjustment of the support cylinders 3, 3' while maintaining the two pairs of chocks 5, 50, respectively, against the clamping system 14 and the box spring 10.
  • the chocks 5, 50, of the two support cylinders 3, 3 ' are each associated with two intermediate pieces 60a, 60b, similar to the intermediate pieces 6a, 6b, working chocks 4 and on which the rods of the holding cylinders 15, 15 'are articulated.
  • the two intermediate parts 60a, 60b, surrounding each chock 5, 50 are each provided with two projecting parts 65 limiting a recess in which engages with play an ear 52 of chock 5 to allow adjustment in height of the cylinders by means of the cylinders 15, 15 ′.
  • horizontal thrust cylinders 72 are housed in said protruding parts 65 and bear on lateral faces 53 of the chock 5, on either side of the ear 52, so as to apply the 'chock 5 on one of the guide faces 13a by resting on the other face 13b, through the parts 60a, 60b.
  • the jacks 72 are adjustable in position and therefore make it possible to define a virtual holding face serving as a reference for the positioning, with the possibility of sliding, of the axis y'y of the support cylinder 3.
  • this positioning can be adjusted as a function of the axial force detected at the end of a cylinder. For example, if an axial force exerted by a working cylinder on one side of the cage is detected, the positioning cylinders of the chock of the cylinder placed on the same side are adjusted to move the axis in the opposite direction to the rolling and acting in the opposite direction on the corresponding support cylinder, so as to cancel the detected axial force, the directions of action being reversed, for each of the two cylinders, on the other side of the cage .
  • chocks for example to move the clamping plane passing through the axes of the working cylinders relative to the plane passing through the axes of the support cylinders, to adjust the alignment of a cylinder assembly working cylinder support relative to each other or to cross the clamping planes of the two sets.
  • bearing supports of the intermediate parts can be replaced by simple smooth bearings with soft sliding, as shown in Figures 7, 8, 9.
  • each intermediate piece 6 comprises a sliding face 68 along the side face 13 of the upright 11, lubrication means not shown to ensure smooth sliding.
  • Lateral hooks 69 surround projecting parts 16 formed on either side of the guide face 13 to ensure the maintenance against the latter of the intermediate part 6.
  • each chock can, in known manner, extend above or below the hydraulic block.
  • the invention requires only fairly minor modifications to the cage and can therefore be easily adapted to any existing type of rolling mill.
  • the arrangements described by way of example in the case of a Quarto rolling mill can be used in a Sexto rolling mill comprising intermediate rolls interposed between each working roll and the support roll, or even in the case where each working cylinder is supported on a set of cylinders arranged on either side of the median plane.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP95402229A 1994-10-06 1995-10-05 Walzanlage Expired - Lifetime EP0707902B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411963A FR2725389B1 (fr) 1994-10-06 1994-10-06 Installation de laminage
FR9411963 1994-10-06

Publications (2)

Publication Number Publication Date
EP0707902A1 true EP0707902A1 (de) 1996-04-24
EP0707902B1 EP0707902B1 (de) 1999-08-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402229A Expired - Lifetime EP0707902B1 (de) 1994-10-06 1995-10-05 Walzanlage

Country Status (5)

Country Link
US (1) US5806360A (de)
EP (1) EP0707902B1 (de)
DE (2) DE707902T1 (de)
ES (1) ES2086284T3 (de)
FR (1) FR2725389B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732157A1 (de) * 1995-03-14 1996-09-18 MANNESMANN Aktiengesellschaft Walzgerüst mit gekreuzten Arbeitswalzen
EP0815967A1 (de) * 1996-06-24 1998-01-07 DANIELI & C. OFFICINE MECCANICHE S.p.A. Ausgleichsvorrichtung für Einbaustücke in Quartowalzgerüsten mit Walzenkreuzung
EP0970761A2 (de) * 1998-07-07 2000-01-12 Danieli United, A division of Danieli Corporation System zum Kreuzen, Versetzen, Biegen und Verschieben von Walzen für Walzwerke

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6748782B1 (en) * 2000-03-01 2004-06-15 Hitachi, Ltd. Rolling mill, looseness eliminating device of roll bearing housing, rolling method, method of modifying rolling mill, and hot finishing tandem rolling equipment
CN100335189C (zh) * 2000-03-01 2007-09-05 株式会社日立制作所 轧机、轧辊轴承箱的松动消除装置
DE102007058729A1 (de) * 2007-08-07 2009-02-19 Sms Demag Ag Walzvorrichtung mit Verstellvorrichtung
DE102008049179A1 (de) * 2008-09-26 2010-04-01 Sms Siemag Aktiengesellschaft Walzvorrichtung
CN103917309B (zh) * 2012-06-26 2016-03-23 新日铁住金株式会社 金属板材的轧制装置
US9770747B2 (en) * 2012-06-26 2017-09-26 Nippon Steel & Sumitomo Metal Corporation Rolling apparatus for flat-rolled metal materials
EP3426418B1 (de) 2016-03-08 2020-11-18 Novelis Inc. Verfahren und vorrichtung zur steuerung eines metallbandprofils beim walzen mit direkter messung von prozessparametern
JP6455555B2 (ja) * 2016-06-29 2019-01-23 Ｊｆｅスチール株式会社 圧延機

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1314027A (fr) 1961-12-05 1963-01-04 Perfectionnements aux laminoirs à cylindres de travail déportés, permettant le laminage réversible sans soutiens supplémentaires des cylindres de travail
JPS56111512A (en) * 1980-02-07 1981-09-03 Sumitomo Metal Ind Ltd Chock of rolling mill
JPS61129208A (ja) 1984-11-28 1986-06-17 Hitachi Ltd 圧延機のロ−ル軸受箱クランプ装置
DE3807654A1 (de) 1988-03-09 1989-09-28 Kloeckner Stahl Gmbh Verfahren und vorrichtung zum wechseln und/oder (wieder-) anfahren von in baustuecken gelagerten walzen, rollen, scheren oder dgl.
JPH02121711A (ja) * 1988-10-31 1990-05-09 Orientetsuku:Kk 圧延機作業ロールのスラスト力検出装置
FR2661625A1 (fr) * 1990-05-04 1991-11-08 Clecim Sa Procede de remplacement des cylindres d'un laminoir et laminoir perfectionne pour la mise en óoeuvre du procede.
JPH06198315A (ja) * 1992-12-28 1994-07-19 Ishikawajima Harima Heavy Ind Co Ltd ロール用の軸受装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU766684A1 (ru) * 1978-12-13 1980-09-30 Магнитогорский горно-металлургический институт им.Г.И.Носова Подушка рабочего валка нереверсивной листопрокатной клети кварто гор чей прокатки
DE3431691A1 (de) * 1984-08-29 1986-03-13 Achenbach Buschhütten GmbH, 5910 Kreuztal Walzgeruest fuer bandfoermiges material
US4803865A (en) * 1987-07-17 1989-02-14 SMS Schloemann--Siemag Aktiengesellschaft Stand-supported bending device for axially slidable rolls of a multiroll rolling mill
DE3843387A1 (de) * 1988-12-23 1990-07-05 Schloemann Siemag Ag Vorrichtung zum walzenwechsel insbesondere der horizontal verschieblichen arbeitswalzen in einem walzgeruest
DE4041290A1 (de) * 1990-12-21 1992-07-02 Achenbach Buschhuetten Gmbh Vorrichtung zum ausbalancieren und vertikalen biegen der arbeitswalzen eines quartowalzgeruestes
JP2862439B2 (ja) * 1991-07-30 1999-03-03 三菱重工業株式会社 クロスロール圧延機のロールクロス装置
DE4314472A1 (de) * 1993-05-03 1994-11-10 Schloemann Siemag Ag Biegeblock zum Biegen der Walzen von Mehrwalzen-Walzgerüsten

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1314027A (fr) 1961-12-05 1963-01-04 Perfectionnements aux laminoirs à cylindres de travail déportés, permettant le laminage réversible sans soutiens supplémentaires des cylindres de travail
JPS56111512A (en) * 1980-02-07 1981-09-03 Sumitomo Metal Ind Ltd Chock of rolling mill
JPS61129208A (ja) 1984-11-28 1986-06-17 Hitachi Ltd 圧延機のロ−ル軸受箱クランプ装置
DE3807654A1 (de) 1988-03-09 1989-09-28 Kloeckner Stahl Gmbh Verfahren und vorrichtung zum wechseln und/oder (wieder-) anfahren von in baustuecken gelagerten walzen, rollen, scheren oder dgl.
JPH02121711A (ja) * 1988-10-31 1990-05-09 Orientetsuku:Kk 圧延機作業ロールのスラスト力検出装置
FR2661625A1 (fr) * 1990-05-04 1991-11-08 Clecim Sa Procede de remplacement des cylindres d'un laminoir et laminoir perfectionne pour la mise en óoeuvre du procede.
JPH06198315A (ja) * 1992-12-28 1994-07-19 Ishikawajima Harima Heavy Ind Co Ltd ロール用の軸受装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 320 (M - 530) 30 October 1986 (1986-10-30) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 351 (M - 1003)<4294> 30 July 1990 (1990-07-30) *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 550 (M - 1690) 20 October 1994 (1994-10-20) *
PATENT ABSTRACTS OF JAPAN vol. 5, no. 190 (M - 100)<862> 4 December 1981 (1981-12-04) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732157A1 (de) * 1995-03-14 1996-09-18 MANNESMANN Aktiengesellschaft Walzgerüst mit gekreuzten Arbeitswalzen
EP0815967A1 (de) * 1996-06-24 1998-01-07 DANIELI &amp; C. OFFICINE MECCANICHE S.p.A. Ausgleichsvorrichtung für Einbaustücke in Quartowalzgerüsten mit Walzenkreuzung
US5911782A (en) * 1996-06-24 1999-06-15 Danieli & C. Officine Meccaniche Spa Compensation device for chocks in four-high rolling mill stands with crossed displacement of the rolls
EP0970761A2 (de) * 1998-07-07 2000-01-12 Danieli United, A division of Danieli Corporation System zum Kreuzen, Versetzen, Biegen und Verschieben von Walzen für Walzwerke
EP0970761A3 (de) * 1998-07-07 2001-07-18 Danieli United, A division of Danieli Corporation System zum Kreuzen, Versetzen, Biegen und Verschieben von Walzen für Walzwerke

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EP0707902B1 (de) 1999-08-25
ES2086284T3 (es) 1999-10-16
DE69511651D1 (de) 1999-09-30
FR2725389B1 (fr) 1996-12-27
US5806360A (en) 1998-09-15
DE69511651T2 (de) 2000-01-05
FR2725389A1 (fr) 1996-04-12
ES2086284T1 (es) 1996-07-01

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