EP1118395A1 - Verfahren und Vorrichtung zur thermischen Regelung des Walzenprofils in einem Walzwerk - Google Patents

Verfahren und Vorrichtung zur thermischen Regelung des Walzenprofils in einem Walzwerk Download PDF

Info

Publication number
EP1118395A1
EP1118395A1 EP01400041A EP01400041A EP1118395A1 EP 1118395 A1 EP1118395 A1 EP 1118395A1 EP 01400041 A EP01400041 A EP 01400041A EP 01400041 A EP01400041 A EP 01400041A EP 1118395 A1 EP1118395 A1 EP 1118395A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
axis
ramp
sprinklers
jet
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
EP01400041A
Other languages
English (en)
French (fr)
Other versions
EP1118395B1 (de
Inventor
André Ravenet
Thierry Malard
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.)
Primetals Technologies France SAS
Original Assignee
VAI Clecim SA
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 VAI Clecim SA filed Critical VAI Clecim SA
Publication of EP1118395A1 publication Critical patent/EP1118395A1/de
Application granted granted Critical
Publication of EP1118395B1 publication Critical patent/EP1118395B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems

Definitions

  • the subject of the invention is a method and a device of thermal control of the profile of a cylinder in a rolling mill.
  • a metal strip rolling installation generally includes one or more cages of rolling mill each comprising at least two cylinders of work and associated with scroll control means a strip to be laminated between said cylinders.
  • each rolling mill stand has two support columns spread apart and connected by crosspieces, between which is mounted a set of cylinders superimposed having parallel axes and placed substantially in the same clamping plane substantially perpendicular to the scrolling direction of the product.
  • Rolling mills of different types can be produced.
  • the product to be rolled passes between two working cylinders which define the plane of rolling; these cylinders preferably have a diameter relatively reduced compared to the efforts to which they are submitted and therefore supported respectively on at least two support cylinders between which the force of rolling.
  • So-called "quarto” rolling mills therefore include four superimposed cylinders, respectively two cylinders of work associated, respectively, with two support cylinders larger diameter.
  • cylinders intermediaries are interposed between each cylinder of work and the corresponding support cylinder.
  • the cylinders are supported on each other along substantially parallel and directed support lines following a generator whose profile, normally straight, depends on the applied forces and the resistance cylinders.
  • the clamping force is applied by screws or cylinders interposed between the cage and the ends of the upper support cylinder shaft, the lower support cylinder supported by its ends directly on the cage.
  • each cylinder can bend under the action of applied forces and it results a variation in thickness of the web passage space between the working rolls, the edges of the strip can thus be thinner than the central part.
  • Such a cylinder comprises a deformable envelope rotatably mounted around a fixed shaft on which is applied the clamping force and bearing on this shaft through a set of adjustable cylinders individually in position and / or pressure by a system regulation, based on a flatness measurement carried out on the strip, downstream of the rolling mill, defects of thickness thus determined being compensated by acting on the distribution of the stresses over the width of the strip.
  • At least one of the cylinders is associated with a ramp spraying a heat transfer fluid comprising a plurality sprinklers spaced apart from one another along a direction parallel to the axis of the cylinder and each provided with a spray nozzle of a fluid jet directed on one face of the cylinder turned towards the ramp and whose flow is determined, for each sprinkler, by means of a valve individually controlled by an adjustment system.
  • Each spray nozzle is usually fitted a slot for delivering a flat jet centered on a median plane which transversely intersects the cylinder axis of so as to form an elongated impact surface having low width and extending over part of the height of the cylinder.
  • the cooled zone therefore consists of a series of substantially parallel and spaced impact surfaces from each other a distance slightly greater than the width of each surface.
  • the median planes of the flat jets in which are the main axes of the impact surfaces, are inclined with respect to the axis of the cylinder, so that the impact is distributed, left and right, on both sides and across the center of the jet, covering a width that slightly protrudes above and below the centers of adjacent jets, without interference between surfaces impact.
  • the average flow, per unit of time, of the jet fluid sprayed on each impact surface can be adjusted individually by the flow adjustment system. It is thus possible to control precisely, by zones split, a variation of the profile, in section transverse, from cylinder over the entire length of the area cooled, so as to modify the stress distribution to correct flatness defects detected downstream.
  • the invention remedies this drawback by providing improvements to the systems used so far for the control of the rolling mill cylinders which allow to obtain a quality of flatness as perfect as possible.
  • the invention uses a system of conventional type thermal control in which at least one rolling mill cylinder is associated with at least one ramp of spraying a fluid allowing to control, by zones fractional, the effect of fluid jets on an area cylinder cooled.
  • one varies the spacing between the median axes of the impact surfaces in function of the position of said jet impact surfaces of fluid along the length of the cooled area so that this includes a central area in which the axes impact surfaces are spaced one step apart substantially constant and two transition zones extending on either side of the central area at least up to two edges of the strip and in which the spacing between the mid-axes of the impact surfaces is reduced relative at the pace of the central area.
  • the spray boom includes a central step constant, corresponding to the central zone of the zone cooled, in which each fluid jet is directed along an injection axis perpendicular to the axis of the cylinder and two side parts with reduced pitch, in which vary the orientations of the axes of the jets with respect to the axis of the cylinder, so as to make them converge respectively towards two transition zones of on either side of the central area of the cylinder, the number of converging jets being such that, taking into account their spacing on the ramp, each lateral part of the ramp covers a length greater than that of the corresponding cylinder transition.
  • one inclines by the same non-zero angle by relative to the axis of the cylinder the median planes of the jets directed on the central zone of the cylinder and we increase gradually the angle of inclination of the median planes of jets directed respectively on the two transition zones, as the corresponding impact surface deviates from the central area.
  • the invention therefore applies to a device for thermal control comprising, in known manner, at least one watering boom made up of a plurality of organs spaced sprinklers supplied with heat transfer fluid and equipped each of a valve associated with an adjustment system individual flow rate sprayed by each sprinkler.
  • the width of the product to be laminated can vary between a minimum width and a width maximum
  • the watering boom includes at least three series of sprinklers, respectively, a central series covering a central part of the cooled area on a length at most equal to the minimum width of the product and in which the sprinklers have fixed directions so that the axes of the impact surfaces correspond to a constant step in said central part of the cooled zone and two lateral series extending on either side of the central series for cover, in total, a length at least equal to the width maximum of the product and in which the sprinklers are pivotally mounted on the ramp, each lateral series being associated with a means for adjusting the orientation of at least one group of pivoting sprinklers, so that reduce the differences between the axes of the impact surfaces in a transition zone at each end of the zone cylinder cooled.
  • each lateral series of sprinklers includes, going from the inside to the outside, a first section in which the axes of the jets are orthogonal to the axis of the cylinder and which covers a first lateral part of the cooled area of the cylinder on a length such as the total length of the central part of the cooled zone, increased by said first parts side is less than the width of the strip, and a second section in which the axes of the jets are inclined inward relative to the cylinder axis and which covers a second lateral part of the cooled area on a length such as the total length of said area cooled is at least equal to the width of the strip, each second section of a lateral series covering, at a end of the cooled zone, a transition zone corresponding to a bank of the strip and in which the median axes of the impact surfaces are spaced one distance less than the spacing pitch of said surfaces, respectively in the central part and
  • the means of adjustment of the orientation of the jets include two means of control of the pivoting of a group of sprinklers, respectively on each lateral series, each means of control being movable along the ramp and associated with a means for adjusting its position as a function of the width of the strip and to a means of selective engagement of said means of control with a group of sprinklers constituting a second section of each lateral series to cover a transition zone, at each end of the cooled zone.
  • each sprinkler includes a tubular body having an outlet end provided with a jet forming nozzle, and an inlet end connected to driving via a connection piece limiting a connecting channel between the inside of the pipe and the inlet end of the tubular body, on which is placed a valve connected individually to the setting.
  • each sprinkler in each lateral series of the ramp, includes a tubular body pivotally mounted on the connection piece around at least an axis orthogonal to the axis of the cylinder.
  • each series side of sprinklers is associated with a means of selective control of the pivoting of a group of organs sprinkler system including a cursor fitted with spread fingers and slidably mounted on a support, along an axis parallel to the ramp supply line, a control means sliding the cursor on its support to adjust the the position of the cursor along the ramp and a means of control of the rotation of the cursor around its axis in two opposite directions, respectively of engagement and clearance of the cursor fingers between the tubular bodies of a group of boom sprinklers.
  • the fingers of the cursor are moved away from a constant distance a little less than the distance between the axes of the tubular bodies of two neighboring sprinklers, said cursor fingers bearing one after the other on said tubular bodies when sliding the cursor, to determine a progressive variation of the angles of inclination of the jets by relative to the axis of the cylinder.
  • FIG. 1 schematically represents, in elevation, all the cylinders of a quarto type rolling mill equipped of two sprinkler systems, respectively, of the two working cylinders.
  • Figure 2 is a schematic front view of all cylinders
  • Figure 3 is a schematic plan view of an entire watering boom.
  • Figure 4 schematically shows the distribution of jet impact surfaces at the end of the cooled area of a cylinder.
  • Figure 5 is a view, in axial section, of a member watering.
  • Figure 6 is a schematic view, in section longitudinal, from the end of a spray boom.
  • Figures 7, 8 and 9 are sectional views transverse, respectively along lines AA, BB, CC of Figure 6.
  • Figure 10 shows the entire ramp sprinkler, in longitudinal section along line DD of the figure 7.
  • Figure 11 is a longitudinal sectional view along the line EE in Figure 8.
  • Figure 12 schematically illustrates the different adjustment possibilities.
  • Figures 1 and 2 there is shown schematically, respectively in cross section and in front view, the assembly of a quarto type rolling mill comprising four superimposed rolls, respectively two working rolls 1, 1 'and two support rolls 10, 10 ', the assembly being placed inside a cage 11 carrying means 12 for applying clamping forces to the ends of the shaft of one of the support cylinders 10, the another support cylinder 10 'resting on shims.
  • the product M is centered on a vertical plane of symmetry P 2 of the cage.
  • the product to be laminated M consists of a metal strip having two edges 13a, 13b separated by a width L which, depending on the type of product to be laminated, can vary between a minimum width L 0 and a maximum width L 1 Generally , the width L of the product is less than the length of the working rolls, the support generator 14 of which is applied to the product only over part of its length. As a result, as indicated above, the rolling force applied by the clamping means 12 between the cylinders determines a bending of the latter which modifies the distribution of the stresses along the bearing generator. 14, the two edges 13a, 13b of the strip being, generally, more compressed than the central part.
  • the mechanical devices for correcting flatness in which the stress distribution is corrected by bending the working rolls or by using a support cylinder with a deformable envelope not allow to locally adapt the profile of the cylinders work to account for this discontinuity because the deformation of the cylinder is necessarily progressive.
  • the sprinklers have necessarily minimum dimensions which depend on the fluid flow at pass and clutter of mechanical parts and it it is not possible to reduce this size below of a certain limit.
  • the miniaturization of the components used is not compatible with their reliability.
  • the valves associated with the regulating devices and allowing to regulate the average flow are sprayed alternately, upon opening and at closing, with a period of a few seconds only.
  • this transition zone can have a width from 30 to 40 mm and the spacing between the axes of the impact surfaces of the jets can be reduced, for example, up to half the corresponding spacing step, in the central area, with minimum bulk of organs watering.
  • two spraying devices 2, 2 ′ are used, placed, respectively, on either side of the plane P 1 of travel of the strip M to be laminated and each comprising at least one ramp 3, 3 'for spraying a heat transfer fluid on a lateral face 4 of the corresponding working cylinder 1, 1'.
  • each spray boom 3, 3 ' consists of a plurality of sprinklers A arranged side by side, equidistant from each other, on a support block 20 forming a rigid beam carried, at its ends, by the two columns of the cage 11 and which extends parallel to the axis of the working cylinder 1, on the entire length of it.
  • Such a provision is not necessarily symmetrical, the fluid being able to be distributed by gravity to ensure lubrication of all cylinders.
  • Each sprinkler A is made up of a body tubular 5 fixed by a connection piece 26 on the block support 20, 20 'in which are formed pipes respectively 22 for the spray boom main 3, 3 'and 23 for the secondary ramp 21, 21'.
  • connection part 26 of a sprinkler member A is placed in communication with the supply line 23 by a connecting channel 24 on which is placed a solenoid valve 25 controlled individually so as to control the supply flow rate of the watering member A.
  • the tubular body 5 is closed by a nozzle 52 provided with a slot for the formation of a flat jet of fluid J of small thickness, centered on an axis 50 and having a median plane P 3 which transversely intersects the axis x'x of the cylinder.
  • the support blocks 20, 20 'of the two spray devices 2, 2' are oriented so that the axes 50 of the fluid jets formed by each ramp 3, 3 'are placed in planes passing substantially by the axes of the corresponding working cylinders 1, 1 '.
  • Each jet of fluid J therefore strikes face 4 of the cylinder facing ramp 3 following on a surface elongated S having substantially the shape of a rectangle curvilinear with a major axis transverse to the x'x axis and having a small width compared to the distance between the axes of two neighboring jets, so that there is no no interference between impact surfaces.
  • the effect of cooling can therefore be adjusted locally by zone split.
  • the invention differs from spraying devices usually used by the fact that the spray boom 3 is constituted, as shown schematically on FIG. 3, of three series of sprinklers, respectively a central series 31 made up of organs sprinklers A which are rigidly attached to the support block 20 and two lateral series, respectively 32a, 32b, consisting of adjustable sprinkling members A 'which are pivotally mounted on the support block 20 and which can be adjust the orientation with respect to the sprinkled side of the cylinder 1.
  • each organ A, A 'must have sufficient dimensions to ensure reliable operation.
  • the pieces of branch 26 are therefore separated from each other, the along ramp 3, with a constant step (a) which corresponds to the minimum size of the sprinklers.
  • the number of fixed sprinklers A constituting the central series 31 of the boom 3 is determined, as a function of the spacing pitch (a), so as to cover a length of the same order as the minimum width L 0 of the bandaged.
  • the axes 50 of the sprayed jets are perpendicular to the axis x'x of the cylinder 1 so that the impact surfaces of the jets J are separated by the same pitch.
  • each lateral series 32a, 32b are moved apart by the same pitch (a) and their number is determined as a function of the remaining length (L 1 -L 0 ) / 2 of the boom, so as to cover the maximum width L 1 of the strip.
  • the length of the cooled zone 4 must be limited to the effective part of the cylinder.
  • the solenoid valves 25 associated with each sprinkler member A, A ' are controlled individually by a flow control system which determines, as a function of the effective width L of the strip, the number of sprinklers with the valves open.
  • the length of the ramp corresponds substantially to the maximum width L 1 of the product.
  • the width L of the product is less than this maximum width, there is therefore, at each end of the ramp 3, a number of sprinkling members corresponding to the part of the cylinder 1 which is not covered by the strip and whose valves are therefore closed.
  • a rolling mill having a maximum width L 1 is shown diagrammatically.
  • the valves of the sprinklers are open only on a central part of the ramp covering the same length L of the cylinder as the product and are closed at both ends, over a length ( L 1 -L) / 2.
  • the fluid is distributed evenly over a cooled area of the cylinder work 1, which extends over a length substantially equal to the distance L between the two edges 13a, 13b of the product, the remaining parts of cylinder 1 not being cooled.
  • the thermal control of the stress distribution can be carried out in a conventional manner, by spraying jets of fluid regularly distributed over a central zone of the corresponding face of the working cylinder 1.
  • the spacing spacing of the impact surfaces of the fluid jets is more tightened by so as to produce two transition zones corresponding, respectively, to the edge zones 15a, 15b of the strip and in which the thermal control is ensured with more precision so as to correct any residual defects.
  • the ramp spray 3 includes three series of sprinklers, respectively a central series 31 and two lateral series 32a, 32b. The whole is shown schematically on the figure 3.
  • each lateral series 32a, 32b is made up of adjustable sprinklers A 'which are pivotally mounted on the support block 20 in a manner that will be described in detail later and whose orientation can be determined by means of a cursor 6. This moves along the ramp 3, parallel to the axis x'x of the cylinder and can engage on a number of sprinklers 42 of each lateral series 32.
  • the strip to be laminated has a width L close to the maximum width L 1 of the strip.
  • the two sliders 6a, 6b which will be described in detail below, are therefore placed at the two ends of the ramp 3 so as to converge towards the inside of the strip, that is to say towards the plane of symmetry P 2 , two groups of sprinklers placed respectively at the two ends of the ramp 3 and each comprising, for example, six sprinklers.
  • Each lateral series 32 therefore comprises two sections, respectively a first section 33 and a second section 34.
  • the sprinkling members A'1 are directed perpendicular to the x'x axis of the cylinder.
  • the sprinklers A'2 oriented by cursor 6, converge towards the inside of the strip.
  • Each part of the ramp 3 thus defined determines watering a corresponding part of the watered face 4 of the cylinder which therefore comprises a central part 41 sprinkled by the central series 31 of ramp 3 and extended, from each side, respectively by a first side part 43 watered by the first section 33 of the lateral series 32 and a second lateral part 44 watered by the second section 34.
  • the impact surfaces of the jets are regularly discarded from step (a) corresponding to the constant spacing of the sprinklers.
  • the second lateral parts 44a, 44b, placed respectively at the two ends of the cooled zone 4 constitute transition zones in which the impact surfaces are closer together, allowing control, with more precision, the thermal effect of watering to compensate for any residual faults observed downstream on both sides of the strip.
  • the total length of the ramp 3 should be a little longer than the total length of the cooled area 4.
  • the flow adjustment system determines the closing of the valves of a certain number of sprinklers which constitute, at each end of the boom, a third section of the lateral series 32a, 32b whose valves are closed.
  • the two sliders 6a, 6b are moved inwards so as to engage respectively, at each end of the effective part of the ramp 3, the valves of which are open, on a group of sprinklers whose jets converge on a transition zone 44 of the cooled surface 4 of the cylinder, at each end of the latter.
  • this part of the boom with the valves open must cover a length greater than that of the cooled zone 4 of the cylinder which is preferably a little higher to the actual width of the product (L). So each area transition 44a, 44b extends outwards, beyond the edge 13a, 13b of the strip, which makes it easier to avoid discontinuity in the stress distribution, in controlling the profile of the support generator over an area transition completely covering the edge of the strip.
  • a pivoting type sprinkler A comprising, as usually a tubular body 5 limiting a channel injection centered on an axis 50 and having one end input 51 connected by a connection piece 26 to the block of support 20 not shown in FIG. 5 and one end of outlet fitted with a nozzle 52 comprising a formation slot of a flat jet of fluid.
  • the body tubular 5 is rigidly fixed to the connection member 26.
  • the end inlet 51 of the tubular body 5 consists of a part spherical 51 taken in a two-part case constituting the connection member 26, so as to constitute a swivel joint with a simple assembly clearance. Sealing is ensured by an annular seal 28 placed between the two parts of the housing 26. It is provided with a machining with two planar faces parallel to the x'x axis of the working cylinder and on which two are threaded dishes 53 formed at the base of the tubular body 5.
  • the latter can thus pivot only around a perpendicular axis on both sides 53, so that the axis 50 of the body tubular 5 moves in a plane.
  • the support block 20 is oriented so that this plane passes substantially by the axis x'x of the working cylinder 1.
  • the housing 26 is provided, on the side of the tubular body 5, a notch 27 which opens on one side so as to allow the orientation, on this side, of the tubular body 5 against the action of a spring plunger 54 which, in the absence external stresses, plate the tubular body 5, in the opposite direction, against the housing 26 in the position shown in Figure 5 for which the axis 50 of the body tubular is perpendicular to the axis x'x of the cylinder.
  • the nozzle 52 is mounted on a nozzle 55 which is immobilized in translation relative to the tubular body 5 but can rotate around the axis 50 thereof.
  • the nozzle 52 is applied and fixed to the end piece 55 by means of a clamping flange 52 'provided with a nut. It is thus possible to adjust an angle of inclination (k) of the median plane P 3 of the jet with respect to the axis x'x of the cylinder 1.
  • the nozzles 52 are adjusted so that the impact surfaces S are parallel.
  • each sprinkler member orientable A ' is provided with a means of varying the inclination (k) of the median plane of the jet as a function of the variation in orientation (i) of the axis 50 thereof.
  • a means of varying the inclination (k) of the median plane of the jet as a function of the variation in orientation (i) of the axis 50 thereof Such device will be described in detail later.
  • FIGS. 10 and 11 there is shown, respectively in front view and in top view, the assembly a spray boom with the control system the orientation of the sprinklers.
  • each cursor 6 At each end of the ramp, there is a slider 6 which is mounted sliding, without possibility of rotation, on a shaft 61, passing below the members irrigation A 'of the boom 3.
  • This cursor 6 carries a plurality of regularly spaced apart fingers 62 which project so as to pass between the tubular bodies 5 of a group of sprinklers A'2. So in the example shown in FIG. 10, which corresponds to FIG. 3, each cursor 6 carries six fingers 62 which each extend at the level of the tubular body 5 of a sprinkler member A'2 so as to take lateral support on it when the cursor 6 slides along the tree 61.
  • This sliding movement is controlled by a nut 7 engaged on a screw 71 and locked in rotation so to move longitudinally, with cursor 6 when the screw 71 is driven in one direction or the other, by a hydraulic motor 72.
  • the fingers 62 of the cursor 6 are moved apart by one step constant (a ') which is slightly less than the step (a) between the axes 50 of the sprinkler members A.
  • a ' step constant
  • the six fingers 62 of the cursor come successively bearing on the tubular bodies 5 correspondents of six sprinklers A'2. These therefore begin to rotate one after the other and this results that the angle of inclination (i) of the axis 50 of an organ 5 relative to the x'x axis of the cylinder decreases in going from the inside to the outside, in the way shown in Figure 3.
  • the arrangement is symmetrical with respect to the plane P 2 of symmetry of the rolling mill, the device comprising two sliders 6a, 6b whose displacements in opposite directions are controlled by two screws 71a, 71b having reverse threads and connected by an extension 73.
  • the rotation of the two screws, in one direction or the other, is controlled by a hydraulic motor 72 by means of a bevel gear.
  • Each cursor 6a, 6b is thus placed at the level of a group of sprinklers A'2 whose jets converge towards a transition zone 44a, 44b, at each end of the cooled zone 4 of the cylinder.
  • each cursor can thus move between two positions limits corresponding to the two ends of each series lateral 32a, 32b, respectively, an external position shown in solid lines in Figure 10 and a position internal represented by dotted lines.
  • each cursor 6 removably engage between the bodies tubular 5 of the sprinklers.
  • each slider 6a, 6b is associated with a pneumatic cylinder 63 whose rod carries a rack 64 on which meshes a toothed wheel 65 wedged at the end of the shaft 61 of cursor guidance 6.
  • cursor 6 is consisting of a sliding mounted tubular socket axially along the shaft 61 but locked in rotation with this one.
  • a rotation of the shaft 61 controlled by the pinion 65 and the rack 64 determines the rotation of the cursor 6 with, in a sense, the engagement of the fingers 62 between the tubular bodies 5 of the sprinklers corresponding and, in the other direction, their release in the position 62 'shown in dashes in FIG. 7.
  • the fingers are placed below the level of the sprinklers and therefore do not oppose the sliding of the cursor 6.
  • the nut 7 is provided a protruding drive part 73 which engages in a circular groove 66 of the cursor 6 allowing the rotation of it around its axis.
  • the hydraulic displacement motor 72 sliders has two speed control controlled by a pulse generator so as to achieve, on the one hand, a rapid displacement of the cursors 6a, 6b for the choice of the group of sprinklers to be directed and, on the other part, a fine adjustment of the cursor position to determine an optimal reduction in the spacing step of the impact surfaces according to the edge defects to be corrected.
  • each sprinkler 5 is substantially concurrent with the axis x'x of the cylinder 1 and the nozzle 52 forms a flat jet, of small thickness, which is centered on a median plane P 3 transversely intersecting the axis x'x.
  • the nozzles 52 are adjusted so that the median planes P 3 of the impact surfaces S are parallel and inclined at the same angle (k) relative to the axis x'x of the cylinder.
  • the cooling effect is applied not only over the entire width (a) of the zone corresponding to the jet considered, but also over part of the two adjacent zones, the overlap (r) possibly being, for example, half the pitch (a).
  • the opening or closing of each valve 25 is controlled by all or nothing, the cooling effect is distributed over the entire length of the sprinkled face 4 of the cylinder 1.
  • the axes 50 of the sprinklers are spaced from each other by the same pitch (a) and the median planes P 3 of the jets are parallel and inclined by the same angle ( k) relative to the axis x'x of the cylinder 1.
  • the sprinklers are oriented so as to reduce the distance between the axes of the jets up to a pitch which can be, for example, half of the constant pitch (a) in the central part 41 and the first lateral part 43.
  • the end piece 55 on which the nozzle 52 is fixed is provided with a pallet 56 on which a torsion spring 57 bears, the opposite end of which is engaged in a hole in the tubular body, at the end d 'entry of it.
  • the pallet 56 is applied by the spring 57 against a pin 58 fixed on the connection member 26 and the median plane P 3 is then inclined by the angle (k) corresponding to the adjustment of the nozzle.
  • the variation of the angle of inclination (k) of the median plane P 3 of a jet depends on the length of the corresponding finger 62.
  • the length of the corresponding finger 62 By gradually increasing the length of the fingers, from the inside to the outside, it is therefore possible to determine a progressive straightening of the jet, starting from section 43 to the end of the area 44.
  • the overlap (r 1 ) between two adjacent impact surfaces is reduced in the same way as their spacing (a 1 ) and remains of the order of half of it.
  • the gradual variation of the angle of inclination (k) makes it possible to avoid interference between the impact surfaces S, on the side where these converge.
  • figure 12 shows, in three successive diagrams, progressive movement of the cursor 6 relative to a starting position, which determines the gradual tilting of the jets and the tightening of impact surfaces.
  • Figure 12a shows the position of the cursor 6 to from which all fingers 62 came into contact with the sprinklers forming the orientable section 34 of the ramp.
  • the angle of inclination (i) of the axes 50 of the jets fluid increases gradually since the first nozzle 5a to the last nozzle 5b in section 34, which, in this position of the cursor, is still directed perpendicular to the axis of the cylinder.
  • the center of the jet of the first nozzle 5a in the series is then at a distance (c 1 ) from the starting position of the cursor 6, for which the same jet was perpendicular to the axis of the cylinder and the transition zone 44a extends over a width (d 1 ) to the axis of the first nozzle 5c of section 33.
  • the last nozzle 5b of section 34 has not yet started to pivot and its axis is therefore located at the distance (a) from the axis of the nozzle 5c, for example 50 mm.
  • Figure 12b shows an intermediate position and the figure 12c shows the final position for which the axes jets are regularly separated by half a step (a / 2), by example 25 mm.
  • transition zone has moved slightly inwards as the distance (c 2 ) has increased and that, at the same time, its width (d 2 ) has decreased slightly compared to the initial width (d 1 ).
  • Adjusting the cursor position therefore, on the one hand, to vary the spacing and the inclination of the jets and on the other hand, slightly modify the width of the transition zone and the relative positions of the jets by compared to the edge of the strip.
  • the progressive tightening of the axes of the jets is accompanied by a gradual recovery of their median planes which allows ensure a uniform distribution of the fluid over the entire height of the cooled face 4.
  • nozzles currently used normally correspond to a spacing of 50 mm approximately, it is quite certain that this spacing is a function of the equipment available and the characteristics of the rolling mill on which the device is installed.
  • each nozzle is usually provided with a slot for forming a flat section jet substantially rectangular but you can also use several orifices distributed in a range and whose jets are merge to form an impact surface on the cylinder elongated, narrow.
  • a member additional sprinkler 8 which can move along a support 81 parallel to the screw 71 for controlling the cursor movements 6.
  • each additional sprinkler 8 placed on one side of the strip is mounted on a slider 80 which is shaped so as to allow passage of the first screw 71.
  • Each nozzle 8 is supplied by a channel formed inside the slider 80 and to which is connected, by means of a swivel joint, a supply line 83, as shown in FIG. 11.
  • This pipe 83 is slidably and leaktightly mounted in a fixed tube 84 which extends on either side of the plane of symmetry P 2 and is connected to a central supply 85.
  • Each additional nozzle 8 forms a flat jet J ', of preferably oriented vertically and which can move under the action of screw 81, so as to be positioned with precision according to the fault to be corrected.
  • the support 81 is consisting of two inverted pitch screws connected by an extension and respectively engaging in threaded bores provided on each cursor 80a, 80b.
  • a hydraulic motor 82 control the rotation of the screw 81 determines equal displacements, in opposite directions of the sliders 80a, 80b and therefore makes it possible to adjust the positions of the jets J ′ of the two nozzles 8a, 8b relative to the two edges of the strip, the corresponding pipes 83a, 83b sliding in both ends of the central tube 84.
  • a pulse generator makes it possible to control these displacements, in opposite direction, of the two cursors 80a, 80b of so as to precisely adjust the position of the two nozzles 8a, 8b with respect to the two edges of the strip.
  • the two nozzles 8 can be supplied at a temperature other than the nozzles A of the ramp 3, the heat transfer fluid being able, moreover, to be of another nature.
  • the invention provides several thermal control means whose effects can be combined so as to obtain a quality of flatness also perfect as possible.
  • the invention does not apply only to new installations but also allows improve plant performance more old. Indeed, the watering ramps and the mechanisms associated constitute compact sets which can be easily installed, even in a rolling stand existing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Nozzles (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Secondary Cells (AREA)
EP01400041A 2000-01-10 2001-01-09 Verfahren und Vorrichtung zur thermischen Regelung des Walzenprofils in einem Walzwerk Expired - Lifetime EP1118395B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0000243 2000-01-10
FR0000243A FR2803548B1 (fr) 2000-01-10 2000-01-10 Procede et dispositif de controle thermique du profil d'un cylindre dans un laminoir

Publications (2)

Publication Number Publication Date
EP1118395A1 true EP1118395A1 (de) 2001-07-25
EP1118395B1 EP1118395B1 (de) 2005-07-13

Family

ID=8845748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01400041A Expired - Lifetime EP1118395B1 (de) 2000-01-10 2001-01-09 Verfahren und Vorrichtung zur thermischen Regelung des Walzenprofils in einem Walzwerk

Country Status (7)

Country Link
US (1) US6490903B2 (de)
EP (1) EP1118395B1 (de)
CN (1) CN1247334C (de)
AT (1) ATE299404T1 (de)
DE (1) DE60111875T2 (de)
ES (1) ES2241756T3 (de)
FR (1) FR2803548B1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6857283B2 (en) * 2002-09-13 2005-02-22 Isothermal Systems Research, Inc. Semiconductor burn-in thermal management system
DE10352546A1 (de) * 2003-09-04 2005-03-31 Sms Demag Ag Verfahren und Vorrichtung zum Aufbringen einer regelbaren Zugspannungsverteilung, insbesondere in den Kantenbereichen kaltgewalzter Metallbänder
US20080243344A1 (en) * 2004-12-20 2008-10-02 Caterpillar Inc. Vibration management system
US7181822B2 (en) * 2005-01-20 2007-02-27 Nucor Corporation Method and apparatus for controlling strip shape in hot rolling mills
JP2006289420A (ja) * 2005-04-11 2006-10-26 Hitachi Ltd 圧延形状制御方法および圧延形状制御装置
KR100668698B1 (ko) * 2005-11-08 2007-01-16 주식회사 포스코 연연속 열간 압연 설비의 압연유 공급 장치 및 그 방법
JP4556856B2 (ja) * 2005-12-02 2010-10-06 株式会社Ｉｈｉ 圧延装置
KR101120665B1 (ko) * 2006-11-27 2012-03-22 아이에이치아이 메탈테크 가부시키가이샤 압연장치, 압연판의 형상 제어 방법
US8966951B2 (en) 2009-02-02 2015-03-03 Siemens Vai Metals Technologies Sas Spraying method and device for a rolling plant
CN102671960B (zh) * 2011-03-09 2014-04-30 宝山钢铁股份有限公司 热连轧机轧辊在机辊型控制方法
KR101804834B1 (ko) * 2011-05-16 2017-12-05 신닛떼쯔 수미킨 엔지니어링 가부시끼가이샤 압연 롤의 세정 장치 및 세정 방법
CN102632086B (zh) * 2012-02-28 2014-04-30 宝山钢铁股份有限公司 一种热轧带钢侧边浪控制方法
EP2676744A1 (de) * 2012-06-22 2013-12-25 Siemens VAI Metals Technologies GmbH Sprinklervorrichtung einer Walzanlage, und Extraktions-/Einführmethode dieses Systems aus einem/in ein entsprechendes Walzgerüst
DE102013009695A1 (de) * 2013-06-03 2014-12-04 Sms Siemag Ag Spritzbalkenverstellung für ein Mehr-Rollenwalzwerk
EP3006125A1 (de) * 2014-10-09 2016-04-13 Josef Fröhling GmbH & Co. KG Walzvorrichtung und walzverfahren
JP6362751B1 (ja) * 2017-09-15 2018-07-25 株式会社松浦機械製作所 切削油の供給方法
EP3670011B1 (de) 2018-12-21 2022-09-28 Primetals Technologies Austria GmbH Kühlung von metallband in einem walzgerüst
EP3854494B1 (de) * 2020-01-24 2022-09-28 Primetals Technologies Germany GmbH Frequenzabhängige verteilung von stellgrössen zur veränderung des walzgutquerschnitts in einer walzstrasse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU900894A1 (ru) * 1980-06-06 1982-01-30 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов, Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Способ охлаждени прокатных валков листовых станов
JPS62173013A (ja) * 1986-01-25 1987-07-29 Kobe Steel Ltd 圧延機におけるク−ラントヘツダ−
US4706480A (en) * 1985-10-11 1987-11-17 Svatos Joseph D Rolling mill cooling system
EP0542640A1 (de) * 1991-10-24 1993-05-19 United Engineering, Inc. Verfahren und Vorrichtung zum Kühlen von Walzwerkswalzen
JPH09267106A (ja) * 1996-03-29 1997-10-14 Kawasaki Steel Corp 熱間圧延機の圧延ロール冷却装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444495A (en) * 1981-04-28 1984-04-24 Bethlehem Steel Corp. Method and apparatus for alignment of spray nozzles in continuous casting machines
NL8403821A (nl) * 1984-12-17 1986-07-16 Hoogovens Groep Bv Inrichting voor het koelen van een werkwals in een walstuig voor het walsen van metaalband.
US4912955A (en) * 1988-12-05 1990-04-03 Norandal Usa Inc. Spray system for rolling mill
DE4134599C1 (de) * 1991-10-18 1993-02-25 Thyssen Stahl Ag, 4100 Duisburg, De
EP0776710B1 (de) * 1995-11-20 2001-12-19 SMS Demag AG Vorrichtung zur Beeinflussung des Profils von gewalztem Walzband
JP3495909B2 (ja) * 1998-03-30 2004-02-09 株式会社東芝 圧延ロールのプロフィール制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU900894A1 (ru) * 1980-06-06 1982-01-30 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов, Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Способ охлаждени прокатных валков листовых станов
US4706480A (en) * 1985-10-11 1987-11-17 Svatos Joseph D Rolling mill cooling system
JPS62173013A (ja) * 1986-01-25 1987-07-29 Kobe Steel Ltd 圧延機におけるク−ラントヘツダ−
EP0542640A1 (de) * 1991-10-24 1993-05-19 United Engineering, Inc. Verfahren und Vorrichtung zum Kühlen von Walzwerkswalzen
JPH09267106A (ja) * 1996-03-29 1997-10-14 Kawasaki Steel Corp 熱間圧延機の圧延ロール冷却装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198248, Derwent World Patents Index; Class M21, AN 1982-03959J, XP002113727 *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 010 (M - 658) 13 January 1988 (1988-01-13) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30) *

Also Published As

Publication number Publication date
US6490903B2 (en) 2002-12-10
ES2241756T3 (es) 2005-11-01
DE60111875D1 (de) 2005-08-18
ATE299404T1 (de) 2005-07-15
CN1247334C (zh) 2006-03-29
FR2803548B1 (fr) 2002-04-19
CN1308998A (zh) 2001-08-22
DE60111875T2 (de) 2006-05-24
US20010007200A1 (en) 2001-07-12
EP1118395B1 (de) 2005-07-13
FR2803548A1 (fr) 2001-07-13

Similar Documents

Publication Publication Date Title
EP1118395B1 (de) Verfahren und Vorrichtung zur thermischen Regelung des Walzenprofils in einem Walzwerk
EP1601474B1 (de) Verfahren zum ändern der konfiguration eines walzgerüstes sowie ein zur durchführung des verfahrens geeignetes walzgerüst
FR2502990A1 (fr) Laminoir a plusieurs niveaux avec mecanisme de reglage de l'aplatissement du produit lamine
EP1560667A1 (de) Verfahren zum verbreitern der produktpalette einer walzanlage für metallische produkte und anlage zur durchführung des verfahrens
FR2661346A1 (fr) Table mobile a blocs et platine, en particulier pour machine outil.
FR2509649A1 (fr) Palette porte-ouvrages pour machine-outil
WO2015000766A1 (fr) Dispositif de déplacement d'un arrangement de découpe et de soudage de bandes métalliques
EP2468631A1 (de) Mit einem eigenen Motorantrieb ausgestattetes Gelenk, und automatisch regulierte Gelenkanordnung
EP0115735B1 (de) Vorrichtung zur Feststellung von Rissen in kontinuierlich gewalzten Stahlbrammen
EP0569307A1 (de) Vorrichtung zur Formung von schraubenförmigen Rippen an der Aussenfläche eines Rohres
EP0707902B1 (de) Walzanlage
FR2479039A1 (fr) Groupe de blocage et de rotation de fils, tubes et barres et son utilisation dans les machines a cintrer ou cintreuses
EP1552892B1 (de) Vorrichtung zum Richten von Metallbändern
EP0907432B1 (de) Metallplattenbiegevorrichtung mit offsetdruckrollen
EP0975447B1 (de) Walzanlage für flachprodukte
EP0384093A1 (de) Flach-Schleifmaschine mit festem Tisch
EP0952896B1 (de) Vorrichtung zum biegen von rohren mit kleinen durchmesser
EP0738546B1 (de) Walzwerk mit grosser Öffnung
FR2750062A1 (fr) Machine de cintrage de toles a rouleaux presseurs decales
EP1226886A1 (de) Einrichtung zum Fördern und Führen eines Metallbandes
FR2514672A1 (fr) Laminoir a effet periodique
BE393043A (de)
BE468503A (de)
FR2628347A1 (fr) Procede et installation perfectionnes pour le laminage continu d'une bande metallique
FR2608716A1 (fr) Dispositif d'arret comprenant un clapet a papillon a mouvement de levee et de rotation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020125

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 60111875

Country of ref document: DE

Date of ref document: 20050818

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051013

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051013

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051013

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2241756

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051219

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20050713

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060418

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: VAI CLECIM

Effective date: 20060131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

REG Reference to a national code

Ref country code: DE

Ref legal event code: R409

Ref document number: 60111875

Country of ref document: DE

Ref country code: DE

Ref legal event code: R119

Ref document number: 60111875

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R074

Ref document number: 60111875

Country of ref document: DE

Ref country code: DE

Ref legal event code: R409

Ref document number: 60111875

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120319

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120125

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130129

Year of fee payment: 13

Ref country code: ES

Payment date: 20130228

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130801

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60111875

Country of ref document: DE

Effective date: 20110802

Ref country code: DE

Ref legal event code: R119

Ref document number: 60111875

Country of ref document: DE

Effective date: 20130801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140131

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140109