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EP2403663B1 - Procédé et dispositif de refroidissement pour refroidir les cylindres d'une cage de laminoir - Google Patents

Procédé et dispositif de refroidissement pour refroidir les cylindres d'une cage de laminoir Download PDF

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Publication number
EP2403663B1
EP2403663B1 EP10706548.4A EP10706548A EP2403663B1 EP 2403663 B1 EP2403663 B1 EP 2403663B1 EP 10706548 A EP10706548 A EP 10706548A EP 2403663 B1 EP2403663 B1 EP 2403663B1
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EP
European Patent Office
Prior art keywords
cooling
pressure
roll
low
shell
Prior art date
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EP10706548.4A
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German (de)
English (en)
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EP2403663A1 (fr
EP2403663B2 (fr
Inventor
Jürgen Seidel
Matthias Kipping
Rolf Franz
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SMS Group GmbH
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SMS Siemag AG
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    • 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

Definitions

  • the invention relates to methods and a cooling device for cooling the rollers, in particular the work rolls of a roll stand, see, for example JP-A 63303609 ,
  • the rollers involved in the rolling process are heated. To protect them from damage and to obtain as long as possible, the rollers are cooled.
  • Cooling systems are nowadays used in most rolling mills, which spray a cooling liquid onto the roll surface with the aid of nozzles (preferably flat-jet nozzles). Such cooling is referred to as spray cooling.
  • the selected pressure level is between 6 bar and 12 bar and, in exceptional cases, 20 bar.
  • the work roll cooling should keep the roll free of dirt, oxide and scale particles.
  • the cooling effect increases with higher coolant quantity and increasing coolant pressure. Disadvantage of the system is that it requires a large amount of energy and at higher pressure, the maintenance of the pump is more complex.
  • a cooling device with highly turbulent cooling in the low pressure region is known in which by means of nozzles or bores, which are arranged on a concave shaped cooling beam, a roller is cooled.
  • the cooling device works satisfactorily and reproducibly only when the diameter range of the roller resulting from the grinding is matched to the curvature of the cooling device. There 10% of the maximum roller diameter, the number of cooling devices required for different roller diameters, which necessitates a sophisticated roller logistics, is necessary.
  • a low pressure cooling in the form of a flow cooling is in the DE 36 16 070 C2 described, wherein in a defined relatively narrow gap between the work roll surface and a cooling shell, the cooling liquid is guided in a directed manner and with external pressure on the roll surface.
  • the pressure level is lower and depends on gap width and flow velocity. Higher cooling effects are achieved here by higher flow velocities. Due to the lower pressure level, the system has no cleaning effect on the roll surface.
  • a disadvantage of this device is that a separate cooling block is necessary for each roller, since this is mounted on the roll chocks. For a conventional hot rolling mill, therefore, a large number of these cooling blocks is required.
  • the adaptation of the gap width to different work roll diameter and the consequences of the cooling block of the respective work roll position has also proved to be disadvantageous or very complicated, since the adjustment of the gap must be done manually and outside of the rolling mill.
  • the stated object is achieved procedurally with the features of claim 1 and device with the features of claim 11, characterized in that the rolls are also subjected to high-pressure cooling at the same time as the low-pressure cooling, wherein the rollers sprayed in the high-pressure cooling directly with a high pressure cooling liquid become.
  • the cooling liquid can be taken from a high tank, for example 7-12 m high, or generated directly by low-pressure pumps.
  • the required pressure range for the cooling liquid of the low pressure roller cooling is dependent on the thermal load of the rollers and is between z. B. 0.5 to less than 5 bar.
  • a single-row or double-row spray bar can be used, as in conventional systems.
  • the small amount of cooling liquid of about 20% of the total amount of cooling liquid is sufficient for this task, wherein a pressure range for the cooling liquid between 5 - 50 bar, preferably 12 bar is required.
  • the used pressure range for the cooling liquid of the high-pressure roll cooling depends on the rolling parameters thickness reduction, specific surface pressure in the roll gap, rolling speed, strip temperatures, roll material and rolled material.
  • the pressure level can be increased accordingly.
  • the roll surface can be observed to derive therefrom the pressure level change.
  • the pressure level can be adjusted individually in steps (for example by switching on or off of pumps) or steplessly.
  • the combined low-pressure high-pressure cooling is provided for example for the front stands of a hot strip mill. In the rear scaffolds, a pure low-pressure cooling can then be used.
  • the high-pressure chilled beam can act over almost the entire length of the bale or be movable in the width direction and with a local cooling effect. If only a simple low-pressure shell cooling is used in an application, then a combination with the cooling according to the Japanese patent application JP 07290120 conceivable and intended. Here, with the help of an engine, two spray nozzle beam sections are moved axially or in the width direction, and the work roll is locally cooled differently.
  • an electric or hydraulic motor with threaded rod or two motors for separate adjustment on the left and right side are preferably alternatively a hydraulically movable single or multi-articulated rocker with spray bars mounted thereon or rotatable nozzle units executable to the coolant jets on the desired areas of the work roll (within or next to the belt area) to positively influence the belt profile and flatness.
  • Analogous to the embodiment with the spraying in the width direction spray bar sections for example, for a segment of the low-pressure shell cooling short segmental shell parts with a width of, for example 150 mm axially adjustable in the width direction and be executed only locally (eg symmetrically at two points of the work roll) acting.
  • the low-pressure work roll cooling used in the invention has the task optimally and efficiently to cool, despite the low coolant pressure, the cooling effect (heat transfer from the roller to the coolant) should be high. This causes a lower roll temperature or can be used to reduce the amount of cooling liquid.
  • a flow cooling is preferably used, in which the cooling liquid is conducted past the roll surface in a relatively narrow gap between the work roll and an arc-shaped cooling shell.
  • the cooling device consists essentially of articulated interconnected movable cooling shell segments.
  • three, but usually two cooling shell segments are used. In special cases, however, only one cooling shell segment can be used.
  • the individual cooling-cup segments preferably have joints or joint halves laterally or at their ends. At least one pivot point is present on the middle cooling-plate segment, which receives at least one, preferably two cylinders (hydraulic or pneumatic cylinders).
  • the cylinders have their second breakpoint on the other members of the adjacent cooling shell segments.
  • the cylinders can be arranged in the middle of the cooling beam or at the edges on both sides.
  • an adjustment with, for example, hydraulic motors or electric motors is conceivable.
  • the console or the cooling beam support with mounting holes.
  • the position adjustment is carried out with a multi-link linkage, which is operated pneumatically, hydraulically or electromechanically. Also is an advantageous employment of the middledebalkenys in the horizontal direction over, for example, a longitudinal or slot guide and pneumatic or hydraulic cylinder possible.
  • the cooling device according to the invention adapts to the respective roll diameter and roll positions due to the existing hinge mechanisms, since the adjustment systems of the cooling beams are connected to the thickness control and follow the vertical movement of the work rolls, for example in the case of a thickness changeover.
  • the cooling shells are automatically pivoted back slightly.
  • the cooling device forms in a structural embodiment by means of a sealing function a space from which only a small amount of cooling liquid enters the environment.
  • the seal is made by conditioning the shell at the top and bottom of the work roll, which can be pressed with a predetermined pressure and / or by applying a dynamic pressure on the edge of the cooling shells.
  • the cooling bars can be fixed with cooling shells and conventional high and / or low pressure spray bars.
  • a gap is formed through which the coolant flows.
  • the gap widths between the cooling shell and the work roll are adjusted in a targeted and reproducible manner during operation, independently of the roll diameter, between 2 and 40 mm, for example to 5 mm.
  • the gap between the work roll and the cooling shell can be approximately equal to -tangential- or the shell is made narrowing toward the outlet.
  • the sectional flow cooling is divided into sections.
  • the cooling liquid flows from an example funnel-shaped rectangular slot in the individual areas of the cooling shell against the roller and is deflected to both sides (up or down) or only primarily to one side, the cooling shell enforces a flow along the roller.
  • the cooling liquid absorbs the heat of the roller efficiently.
  • the heated coolant then flows backwards making room for new cold coolant.
  • the chilled beams are designed in such a way that the cooling liquid flowing to the rear (away from the roller) can flow off well, especially on slopes.
  • baffles the returning coolant on the upper side is additionally directed to the side in order to reduce the pool effect over the wiper.
  • the individual cooling areas are separated from each other by mutual shielding, so that the cooling liquids of the adjacent cooling bars hardly interfere with each other.
  • the cooling liquid In a continuous flow cooling, the cooling liquid is passed over a larger contiguous angular range of the roller. A low adaptable gap width and high flow velocity are required to produce good heat transfer. Slit width and coolant volume must therefore be coordinated.
  • the contiguous flow cooling can be operated in countercurrent or DC principle. Due to the long path between inlet and outlet side, a lateral sealing of the cooling shell is required.
  • an operating mode can also be carried out in which the cooling liquid is supplied to the upper and lower cooling beam pipelines. The process is then targeted to the pages. In this principle, initially the cooling fluid flowing tangentially to the roller absorbs the heat and is then deflected to the side. The warm coolant heats the roller areas next to the belt running area and leads there to the desired positive influence of the thermal crowns. This system is particularly effective when zone cooling is performed, where the areas next to the belt are not directly cooled.
  • FIG. 1 a spray cooling according to the prior art is shown, in which a cooling liquid 7 is sprayed by means of nozzles 27 on the roll surface of the work rolls 1, 2. Due to the relatively large distance between the nozzle and the roller, a higher coolant pressure range (eg 6 ... 15 bar) is selected. Inlet and outlet side arranged scrapers 17 ensure that as little as possible cooling liquid can come into contact with the rolling stock 4.
  • FIG. 2 shows another known way to cool the work rolls 1, 2. This is a highly turbulent cooling in the low pressure range. Water is sprayed onto the roll surface of the work rolls 1, 2 with the aid of inlet-side arranged nozzles 27 and through the outlet side in the concavely curved contiguous cooling shell 11, and a water cushion with a turbulent and non-directional flow is formed in front of the work roll. The replacement of the water is relatively slow in this construction, which negatively affects the cooling efficiency.
  • a continuous flow cooling according to the invention with a contiguous cooling shell 11 is in the FIG. 3 shown.
  • the cooling device 10 according to the invention consists here essentially of articulated cooling shell segments 13 which enclose the work rolls 1, 2 at a distance, forming a gap 30 in a larger angular range.
  • the hinge axis of the articulated connection is preferably parallel to the longitudinal axis of the roller.
  • the cooling liquid 7 flows in countercurrent to the rolling direction 5 in the gap 30 to then flow through the outlet opening 24 and the discharge pipe 26 again. If the discharge pipe 26 or the outlet opening 24 is closed or not carried out in a special case, it is possible to selectively generate a coolant outlet transverse to the roll. Side seals are then only partially available here.
  • the segment lengths of the cooling-cup segments 13 forming the gap 30 should be approximately the same, so that when the diameter of the work-roll 1 changes, the cooling-cup segments 13 can follow the change in curvature of the roll-jacket surface 6 optimally.
  • the individual cooling-cup segments 13 have at their ends joints or joint halves which, connected to one another, form a corresponding number of pivot pivots 22 and pivot points 21 which are connected to one another by cylinders 20, for example hydraulic or pneumatic cylinders.
  • On the middle cooling shell segment 13 is the cooling beam support 16 with a pivot point 23, by which it is possible, the cooling shell segments 13 and all components that are connected to this, in the illustrated (horizontal, vertical and rotating) adjustment directions 45 of the cooling beam carrier with a To move not shown here multi-link linkage.
  • a stripping device 17 arranged below the cooling shell 11 ensures that as little cooling liquid 7 as possible reaches the rolling stock 4.
  • FIG. 4 An alternative flow guidance of the cooling liquid 7 within the gap 30 formed by the cooling shell segments 13 of the cooling shell 11 and the roll shell surface 6 in relation to that in FIG FIG. 3 described flow is in the cooling device 10 of FIG. 4 shown.
  • the supply pipes 25 for the low pressure ND to be used cooling liquid 7 are arranged here respectively at the upper and lower cooling shell segment 13, so that here thedefactkeitsteilmengen in countercurrent and in cocurrent, based on the Walzencard 5, are guided through the gap 30.
  • the flow directions are indicated by arrows 43.
  • the upper and lower edges of the cooling shell 11 are formed with a contact surface 46, for example a hard tissue plate, which is sealingly guided against the roll shell surface 6.
  • each work roll 1, 2 is also cooled on the inlet side. Since the achievable cooling is not the main focus here ranges for. B. spray cooling with low pressure ND by means of nozzles 27th
  • a cooling device 10 with a section-wise low-pressure flow cooling shows the FIG. 5 ,
  • the cooling shell segments 13 of the now radially divided cooling shell 12 are also spatially separated from each other and form separate Strömungskühl Schemee s1, s2, s3.
  • the cooling liquid flows through a funnel-shaped discharge slot 44 in the central region of a cooling shell segment 13 from an outlet opening 24 against the work roll 1, 2 and is deflected upwards and downwards on both sides.
  • mechanical side seals can be arranged.
  • Each cooling shell segment 13 forces a flow according to the arrows 43 along the roll surface 6 and then back to the rear.
  • the cooling-cup segments 13 are designed so that the cooling liquid flowing to the rear (away from the roller) can flow off well with a gradient.
  • baffles By (not shown) baffles, the back flowing coolant on the upper side is additionally directed to the side in order to reduce the pool effect on the scraper 17.
  • the outlet openings 24 of the cooling-cup segments 13 can be provided with an exchangeable mouthpiece (for example a rectangular nozzle) so that, if required, the cross-section and the shape can be adapted to slightly changed conditions.
  • high pressure (HD) nozzles are arranged in this embodiment, by means of which the inventively combined low-pressure high-pressure cooling is realized.
  • the high-pressure spray bar can be arranged separately on the cooling beam carrier 16 or attached to a cooling shell segment, so that it can be adjusted with it.
  • FIG. 6 is indicated that on the cooling beam of the cooling device 10 is a completely replaceable cooling plate 47 is attached. Since here too the mouthpieces of the nozzle openings of the outlet openings 24 can be exchanged, so the possibility of changing the entire cooling shell with mouthpiece or separately is possible.
  • the cooling shells of a flow cooling region may also be divided into two, so that the outlet opening 24 is slightly displaced by relative displacement and subsequent fixing of the two halves is adjustable. Furthermore, slightly different shell thicknesses or gap widths per cooling beam can be set and the amount of coolant flowing upwards and downwards can be influenced.
  • the cooling beam support 16 is positioned with the middle cooling shell segment 13 in front of the roller.
  • the other two cooling-plate segments 13 are laid against the work rolls 1, 2 with the aid of a straight or curved crossbar 48, which can be rotated in a small defined area, with a corresponding spring contact pressure of the spring 8.
  • Coil springs 8 are mounted with corresponding brackets at the ends.
  • the gap 30 is determined by spacer plates 49 between the cooling shell 13 and the work roll 1, 2. As a material for the spacer plates z.
  • the spacer plates 49 are arranged only in the chilled beam edge region so as not to disturb the coolant flow in the middle.
  • Optional spacer plates 49 are also conceivable over the cooling beam length. These can serve as distance adjustment or for influencing the flow direction of the coolant.
  • These spacer plates may also be mounted on the middle cooling cup segment 13 (not shown).
  • the work roll diameter ranges, in which the cooling is operated, small or per scaffold in the same area so a special case, a rigid cooling system, ie provided with immobile cooling shells (without cylinder between the shells and without springs 8). Also, it is then advantageously possible to use rigid spacer bars instead of movable cylinders 20.
  • the gaps between the roller and the cooling pan then vary slightly, however the system with the partial flow cooling is still effective and the system is easier to manufacture. It must only be positioned depending on the work roll diameter and the work roll position in front of the roller so that the gap optimally, so the outlet openings are arranged relatively close in front of the roller depending on the work roll diameter.
  • the design can be carried out the same for multiple scaffolding and the adaptation to the different framework diameter ranges of a rolling train is carried out only on the length-adjustable rods.
  • a low-pressure flow cooling with integrated roll gap lubrication 19 and roll gap cooling 18 on the inlet side.
  • a low-pressure flow cooling with integrated roll gap lubrication 19 and roll gap cooling 18 on the inlet side.
  • Fig. 8 discloses how different high and low pressure systems can be combined.
  • the flow of the cooling liquid 7 can share under a cooling shell or, as shown here for example on the inlet side and outlet side, a larger amount of coolant are preferably directed in one direction. In order to increase the heat transfer, a flow against the direction of rotation is advantageous.
  • the area in which the nip lubrication 19 is arranged, is largely kept dry by the generated flow direction of the work roll cooling and / or provided with an elastic plastic surface cooling shells 50 or cooling shells 51 with elastic plastic or hard tissue plates, including the cooling beam support mechanism, a slight contact pressure is generated over the plates on the roller.
  • the plates themselves are designed to be continuous across the width and have by their structural design (not shown) an elastic effect.
  • the area of the roll surface (seen in the direction of rotation) prior to the application of the rolling gap lubricant is optionally carried out with a (not shown) compressed air spraying in order to blow the roll surface defined dry.
  • the cooling device 10 of FIG. 9 it is according to the cooling device 10 of FIG. 9 also possible to carry out the three chilled beam with replaceable cooling shells 47, in which many staggered holes 52 are drilled from which individual coolant jets from a short distance against the rollers 1, 2 inject. Even so, a partial flow cooling can be established.
  • the holes are arranged offset in the width direction so that a uniform cooling effect across the width.
  • the cross-sectional size and distances of the holes 52 can be designed differently over the bale width, so that a coolant crown can also be produced with this system.
  • the holes 52 can be aligned perpendicular to the rollers 1, 2 or allow an oblique injection of the cooling liquid against the rollers 1, 2.
  • the funnel-shaped outlet opening formed in the flow direction can be designed with baffles in order to direct the coolant inwardly, outwardly or straightforwardly, so that ultimately a closed and uniform coolant-liquid jet emerges over the length of the cooling-bar.
  • a funnel-shaped design ofdestattkeitszu Crystalkanals to the chilled beam broadsides is possible to reduce the under the shell transverse to the side (beam edges) flowingdeunderkeitmenge.
  • FIG. 10e and FIG. 10f represents only the principle dar. There are also other constructions with the same effect possible.
  • FIGS. 11a to 11c Details for an exemplary embodiment of the gap adjustment in the feed channel 55 are in the FIGS. 11a to 11c in side view and in the FIG. 12 shown in the corresponding plan view.
  • the elongated outlet cross-section 58 of the cooling bar is divided into individual width sections 59.
  • the flow opening b and thus the volume flow of the cooling liquid can be adjusted individually.
  • the width section 59 can be designed, for example, 50-500 mm wide.
  • a paired, symmetrically arranged to the frame center control of the zone cooling (gap setting) is possible.
  • All the cooling bars of a scaffold can be provided with zone-by-zone control of the cooling cross-sections and the zones can be correspondingly connected, or the individual bars of a scaffold can be controlled separately.
  • a closing mechanism of the outlet cross-section is for the embodiment in FIG. 11 a system operated with air pressure or fluid pressure. Depending on the pressure level of the system or on the measured volume flow, the flow opening b can be adjusted from open to partially open or closed.
  • stretchable plastic bottles 60 arranged in sections it is also possible to use rotary or displaceable flaps or tappets, eccentric adjustments or other mechanical actuators for segment-wise influencing of the cross section of the outlet opening.
  • FIGS. 11a to 11c is arranged laterally on the feed channel 55 as a closure member, a pressure chamber 56, the expandable plastic tube 60 forms part of the feed channel 55.
  • the air chamber 56 in the unpressurized state, so that, as in the FIG. 12 shown at the width section 59a, the flow opening b is fully open.
  • the pressure chamber 56 was partially filled with compressed air or a liquid via a pressure line 57, whereby the plastic tube 60 was partially pressed into the feed channel 55 and the Flow opening b is now partially closed, as in FIG. 12 at the width section 59b is shown.
  • a completely closed flow opening b shows the FIG. 12 at the width section 59c.
  • FIG. 11 c completely filled the pressure chamber 56 and thus shut off the feed channel 55 in this area.
  • the thermal expansion of the roll and thus the strip profile and the strip flatness can be positively influenced.
  • Closing the cooling zones next to the belt while adjusting (reducing) the water flow rate can advantageously contribute to further energy reduction.
  • FIG. 13 Another operating principle of zone cooling is in FIG. 13 shown.
  • narrow cooling shells 14 are arranged side by side in roll length, the columns 31, 32, 33 can be adjusted with different gap widths W1, W2, W3.
  • a barrier cooling liquid generating a dynamic pressure can be introduced into the gap 34 existing between the cooling shells 14.
  • a cooling shell without adjusting device can be designed such that the gap between the cooling shell and the roll is arbitrarily different over the length of the roll.
  • cooling shells 13,14 can be used with advantage a material which may rest against the roller without damaging it and is elastic.
  • a material which may rest against the roller without damaging it and is elastic may be, for example, a sand-free cast iron, lubricious plastic, self-lubricating metals, aluminum or hard tissue.
  • FIG. 14 a possibility for sealing the gap 30 formed between the work roll 1 and the cooling shell 14 at its edges.
  • a fluid jet 28 for example Air or coolant, selectively injected into the opening of the gap 30.
  • the fluid jet 28 thus generates a back pressure, which prevents the escape of the cooling liquid 7 from the gap 30.
  • FIGS. 15a and 15b A locally acting axially adjustable work roll spray cooling, which can be performed as high pressure as well as low pressure cooling, show FIGS. 15a and 15b ,
  • This cooling is an additional cooling and can be operated in combination with the low-pressure shell cooling, not shown.
  • the local positioning of the spray nozzles or application of the cooling liquid 7 preferably takes place as a function of the profile and flatness control or regulation.
  • FIG. 15a For this purpose, the spray nozzle bar sections 40 'are moved on a guide rod 63. The positioning of the two spray nozzle bar sections 40 'takes place symmetrically to the center of the roll with the aid of a hydraulic cylinder 61, linkage rods 62 and nozzle beam carrier 64.
  • two hydraulic cylinders 61 are also conceivable which individually position both sides 65.
  • a similar arrangement of a spatially acting work roll cooling provides FIG. 15b With a hydraulic cylinder 61, articulated rods and articulated arms 62 with spray nozzle bar sections 40 'mounted thereon are moved via a pivot point 66 on a circular path 64, and the cooling jet 7 is directed to different positions within or next to the band area on the work roll 1.
  • the two spray nozzle bar sections 40 'each with a coupling gear (4-joint arc) are moved when a movement on a circular path 64 should be avoided.
  • the use of electric or hydro-stepping motors at the positions of the pivot points 66 for the direct movement of the nozzle units on the spray nozzle bar sections 40 'via a bar on the circular path 64 are also possible.
  • the low pressure cooling system is also alone, ie not usable in combination with the high pressure cooling system.
  • Fig. 16 shows bending springs 8 as an elastic connection between the adjacent cooling shell segments 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (20)

  1. Procédé pour le refroidissement des cylindres (1, 2) d'une cage de laminoir avec un refroidissement sous basse pression, dans lequel les cylindres sont sollicités avec un liquide de refroidissement mis sous basse pression, caractérisé en ce que les cylindres sont soumis, de manière simultanée au refroidissement sous basse pression, également à un refroidissement sous haute pression, dans lequel les cylindres, lors du refroidissement sous haute pression sont pulvérisés de manière directe avec un liquide de refroidissement mis sous haute pression.
  2. Procédé selon la revendication 1, caractérisé en ce qu'environ 20 % de la quantité totale du liquide de refroidissement du refroidissement sous haute pression et environ 80 % de la quantité totale du liquide de refroidissement du refroidissement sous basse pression générant l'effet de refroidissement principal sont alimentés.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, en fonction des paramètres du laminage, à savoir la diminution de l'épaisseur, la compression superficielle spécifique dans l'emprise, la vitesse de laminage, la température du feuillard, le matériau des cylindres et la matière laminée, pour le refroidissement des cylindres sous basse pression, on règle de préférence une plage de pression pour le liquide de refroidissement (7) entre 0,5 et une valeur inférieure à 5 bar et, pour le refroidissement des cylindres sous haute pression, une plage de pression pour le liquide de refroidissement (7) entre 5 et 50 bar, de préférence une pression de 12 bar, à l'aide d'un modèle de processus.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le refroidissement sous basse pression est réalisé sous la forme d'un refroidissement par pulvérisation sous basse pression, sous la forme d'un rideau de refroidissement sous basse pression ou sous la forme d'un refroidissement par écoulement sous basse pression, sous la forme d'un refroidissement sous basse pression à forte turbulence ou sous la forme d'une combinaison des types de refroidissement mentionnés, dans lequel, dans le refroidissement par écoulement sous basse pression, le liquide de refroidissement s'écoule en passant par une fente (30, 31, 32, 33) entre la surface des cylindres et au moins un segment d'enveloppe de refroidissement, qui est disposé à l'opposé d'une zone partielle de la surface des cylindres.
  5. Procédé selon la revendication 4, caractérisé en ce qu'on procède à une adaptation de la position du segment d'enveloppe de refroidissement (13) aux diamètres respectifs des cylindres et/ou aux positions respectives des cylindres afin d'obtenir un effet de refroidissement reproductible.
  6. Procédé selon l'une quelconque des revendications 4 et 5, caractérisé en ce qu'on obtient, via les enveloppes de refroidissement (13) principalement un courant de réfrigérant (43) en position tangentielle le long de la surface des cylindres (1, 2) ou bien on met en oeuvre à l'aide de plaques d'écartement, respectivement de nervures d'écartement (49) étanches en direction tangentielle, de manière facultative un courant de réfrigérant respectivement un écoulement de réfrigérant, de préférence en direction latérale, afin de réchauffer avec du liquide de refroidissement plus chaud (7) la zone de cylindre aux bords à côté de la zone de feuillard au milieu.
  7. Procédé selon la revendication 6, caractérisé en ce que, lors d'un écoulement de réfrigérant de préférence guidé parallèlement à l'axe des cylindres, l'alimentation en réfrigérant est coupée, à côté de la zone de feuillard, par les particularités du refroidissement par zone, par exemple par la distance de l'enveloppe de refroidissement par rapport au cylindre (1, 2), respectivement par rapport au canal d'alimentation du réfrigérant (55).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'intensité de refroidissement du refroidissement sous basse pression, en particulier dans le cas du rideau de refroidissement sous basse pression ou dans le cas du refroidissement par écoulement, est réglée différemment sur la longueur des cylindres.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les barres de tuyères de pulvérisation du système de refroidissement sous haute pression, de manière facultative mobiles en largeur, sont mises à contribution pour le refroidissement par zone et sont réalisées en direction axiale à l'aide de moteurs hydrauliques ou électriques comprenant de tiges filetées ou via des mécanismes articulés (62) à mobilité hydraulique, comportant un ou plusieurs membres, sur lesquels est fixée une section de barre de tuyères de pulvérisation (40') ou sous la forme de tuyères unitaires rotatives, pour guider le liquide de refroidissement (7) avec un faisceau orienté sur la zone désirée du cylindre (1, 2).
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on met en oeuvre un modèle mathématique, par exemple un modèle de processus, respectivement un modèle de niveau 1, qui met en oeuvre les objets suivants :
    un réglage de la quantité du réfrigérant et du niveau de pression pour la partie basse pression et pour la partie haute pression, en fonction de la diminution d'épaisseur du feuillard, de la compression superficielle spécifique dans l'emprise, la vitesse de laminage, des températures du feuillard, du matériau des cylindres et de la matière laminée ainsi que des températures mesurées et/ou calculées des cylindres et/ou de la surface observée des cylindres et également en fonction de la largeur réglée de la sollicitation avec le réfrigérant ;
    un réglage de la quantité de réfrigérant sur la largeur du feuillard en réglant les ouvertures d'évacuation du canal d'amenée (configuration parabolique, autre courbe ou par zone) et en réglant la largeur de fente entre l'enveloppe de refroidissement et le cylindre en fonction de la largeur du feuillard et/ou en réglant la position des sections de barres de tuyères de pulvérisation réglables en largeur et/ou le profil mesuré et la planéité mesurée sur la largeur du feuillard ;
    un échange de signaux avec le réglage de l'épaisseur ;
    une description des relations géométriques des parties mobiles du mécanisme de refroidissement ainsi que la prise en compte de la position de serrage, de la position de la ligne de réglage et du diamètre des cylindres à des fins d'une détermination optimale des positions, respectivement d'un calcul optimal des modifications de positions ; et
    une détermination de la position de pivotement des supports de barres de refroidissement ainsi que de la position de serrage de l'enveloppe de refroidissement à l'aide des cylindres en utilisant le cas échéant les signaux de l'indicateur de pression et de l'indicateur de déplacement.
  11. Dispositif de refroidissement (10) pour le refroidissement des cylindres (1, 2) d'une cage de laminoir avec un système de refroidissement sous basse pression, dans lequel les cylindres sont sollicités avec un liquide de refroidissement mis sous basse pression, caractérisé en ce que, en plus du système de refroidissement sous basse pression, on prévoit également un système de refroidissement sous haute pression qui est équipé de tubes de pulvérisation et de tuyères, pour la pulvérisation directe des cylindres avec le liquide de refroidissement mis sous haute pression, de manière simultanée au refroidissement sous basse pression via le système de refroidissement sous basse pression.
  12. Dispositif de refroidissement selon la revendication 11, caractérisé en ce que le système de refroidissement sous basse pression est réalisé pour générer un refroidissement par pulvérisation sous basse pression, un rideau de refroidissement sous basse pression ou un refroidissement par écoulement sous basse pression, ou encore un refroidissement sous basse pression à forte turbulence ou une combinaison des types de refroidissement mentionnés.
  13. Dispositif de refroidissement selon la revendication 12, caractérisé en ce que le système de refroidissement sous basse pression pour générer le refroidissement par écoulement sous basse pression présente au moins une enveloppe de refroidissement (11) comprenant au moins un segment d'enveloppe de refroidissement de préférence sous forme arquée (13, 52), qui réalise, avec la surface du cylindre à refroidir (1,2), une fente (20) qui peut être remplie avec le liquide de refroidissement (7) qui s'écoule, qui peut être réglée de préférence en ce qui concerne sa largeur de fente, sous la forme de la distance entre la surface du cylindre et l'enveloppe de refroidissement.
  14. Dispositif de refroidissement selon les revendications 11 à 13, caractérisé en ce que le système de refroidissement sous haute pression présente une barre de tuyères de pulvérisation (40, 40') en une série ou en plusieurs séries comprenant les tuyères pour le refroidissement des cylindres sous haute pression.
  15. Dispositif de refroidissement selon l'une quelconque des revendications 11 à 14, caractérisé en ce que, dans le cas du système de refroidissement combiné sous basse pression - sous haute pression, les barres de tuyères de pulvérisation (40, 40') du système de refroidissement sous haute pression sont disposées à demeure ou en mobilité en largeur au-dessus et/ou en dessous et/ou à l'intérieur du système de refroidissement sous basse pression.
  16. Dispositif de refroidissement selon l'une quelconque des revendications 11 à 15, caractérisé en ce que deux des segments d'enveloppe de refroidissement ou plus sont reliés en mobilité les uns aux autres.
  17. Dispositif de refroidissement selon l'une quelconque des revendications 11 à 16, caractérisé en ce que la liaison mobile entre les segments d'enveloppe de refroidissement est réalisée sous la forme d'une articulation rotative et/ou d'un ressort et/ou d'une liaison élastique et/ou d'un agencement d'un mécanisme articulé à plusieurs membres.
  18. Dispositif de refroidissement (10) selon une ou plusieurs des revendications 15 à 17, caractérisé en ce qu'au moins un des segments d'enveloppe de refroidissement (13, 52), par exemple le segment du milieu, peut être positionné via le support de barres de refroidissement (16) avant les cylindres (1, 2) et les autres segments d'enveloppe de refroidissement (13, 52), mis à l'écart via des plaques d'écartement (49), peuvent être comprimés, via des ressorts (8), contre les cylindres (1, 2).
  19. Dispositif de refroidissement (10) selon l'une quelconque des revendications 11 à 18, caractérisé en ce que, à l'aide d'une fonction d'étanchéité, respectivement d'un agent d'étanchéité, via une pression prédéfinie s'exerçant sur les cylindres (1, 2), on forme un espace entre les enveloppes de refroidissement (11, 12), respectivement entre les segments d'enveloppe de refroidissement (13) et les surfaces des cylindres (1, 2), à partir duquel une quantité minime de liquide de refroidissement (7) aboutit dans l'environnement.
  20. Dispositif de refroidissement (10) selon l'une quelconque des revendications 11 à 19, caractérisé en ce le système de refroidissement sous haute pression est disposé du côté sortie de la cage de laminoir.
EP10706548.4A 2009-03-03 2010-03-02 Procédé et dispositif de refroidissement pour refroidir les cylindres d'une cage de laminoir Active EP2403663B2 (fr)

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DE102009011111 2009-03-03
DE102009011110 2009-03-03
DE102009014125 2009-03-24
DE102009036696 2009-08-07
DE102009053074A DE102009053074A1 (de) 2009-03-03 2009-11-13 Verfahren und Kühlvorrichtung zum Kühlen der Walzen eines Walzgerüstes
PCT/EP2010/001274 WO2010099924A1 (fr) 2009-03-03 2010-03-02 Procédé et dispositif de refroidissement pour refroidir les cylindres d'une cage de laminoir

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EP2403663A1 EP2403663A1 (fr) 2012-01-11
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US (1) US20120031159A1 (fr)
EP (1) EP2403663B2 (fr)
CN (1) CN102421541B (fr)
DE (2) DE102009053074A1 (fr)
RU (1) RU2483817C1 (fr)
TW (2) TW201036721A (fr)
WO (2) WO2010099925A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011104735A1 (de) * 2011-06-16 2012-12-20 Sms Siemag Ag Verfahren und Vorrichtung zum Kühlen einer Arbeitswalze
DE102011112519A1 (de) 2011-09-07 2013-03-07 Gottfried Wilhelm Leibniz Universität Hannover Vorrichtung zum Aufbringen eines Mediums auf ein Objekt und Verfahren zur Detektion von Abweichungen eines Sprühfeldes
DE102012202340A1 (de) 2011-12-23 2013-06-27 Sms Siemag Ag Verfahren und Vorrichtung zum Kühlen von Walzen
DE102012201157B4 (de) * 2012-01-26 2017-06-01 Achenbach Buschhütten GmbH & Co. KG Verfahren und Vorrichtung zur Relativpositionierung eines Düsenbalkens einer Walzgerüsteinlaufarmatur
DE102012216570A1 (de) 2012-05-11 2013-11-14 Sms Siemag Ag Vorrichtung zum Kühlen von Walzen
EP2676744A1 (fr) * 2012-06-22 2013-12-25 Siemens VAI Metals Technologies GmbH Dispositif d'arrosage d'une installation de laminage et méthode d'extraction/introduction dudit système hors/dans ladite cage de laminage
EP2969277B1 (fr) * 2013-03-15 2017-08-02 Novelis Inc. Procédés et appareil de fabrication pour refroidissement ciblé dans un laminage de métal à chaud
CN103481198B (zh) * 2013-09-03 2015-12-02 中冶南方工程技术有限公司 基于磨辊间管理系统的辊轧冷却装置及其冷却方法
EP2881186A1 (fr) * 2013-12-09 2015-06-10 Linde Aktiengesellschaft Procédé et appareil pour isoler le froid dans un équipement cryogénique
DE102014224318A1 (de) * 2014-11-27 2016-06-02 Sms Group Gmbh Vorrichtung und Verfahren zum Kühlen einer Rolle
JP6249007B2 (ja) * 2015-02-19 2017-12-20 Ｊｆｅスチール株式会社 孔型圧延における圧延油噴射装置
DE102015210680A1 (de) 2015-06-11 2016-12-15 Sms Group Gmbh Verfahren und Vorrichtung zum Regeln eines Parameters eines Walzgutes
DE102015219053A1 (de) * 2015-10-01 2017-04-06 Achenbach Buschhütten GmbH & Co. KG Verfahren und Vorrichtung zum Kühlen einer in einem Walzgerüst angeordneten Walze
DE102016223131A1 (de) * 2016-09-06 2018-03-08 Sms Group Gmbh Vorrichtung und Verfahren zum Aufbringen eines flüssigen Mediums auf eine Walze und/oder auf ein Walzgut und/oder zum Entfernen des flüssigen Mediums
EP3308868B1 (fr) 2016-10-17 2022-12-07 Primetals Technologies Austria GmbH Refroidissement d'un rouleau d'une cage de laminoir
CN107470363B (zh) * 2017-06-28 2020-06-12 柳州钢铁股份有限公司 可以实现自动定位的轧机防缠导板的定位方法及定位装置
BE1025125B1 (fr) * 2017-09-04 2018-10-31 Centre de Recherches Métallurgiques asbl-Centrum voor Research in de Metallurgie vzw Essuyeur sans contact et installation industrielle comportant un tel essuyeur
KR102224516B1 (ko) 2018-06-13 2021-03-08 노벨리스 인크. 롤 가공처리에서 점성 재료를 격납하기 위한 시스템 및 방법
BR112020022197A2 (pt) 2018-06-13 2021-02-02 Novelis Inc. sistemas e métodos para remoção de materiais viscosos no processamento de artigos de metal
KR102139449B1 (ko) * 2018-06-13 2020-07-29 노벨리스 인크. 금속 가공처리에서 롤을 냉각시키기 위한 시스템 및 방법
EP3599036B1 (fr) * 2018-07-26 2022-06-15 Primetals Technologies Austria GmbH Cage de laminoir pourvu de dispositif de refroidissement hybride
ES2970134T3 (es) 2018-12-19 2024-05-27 Tata Steel Ijmuiden Bv Dispositivo de refrigeración para un tren de laminación en caliente
DE102020204309A1 (de) * 2020-04-02 2021-10-07 Sms Group Gmbh Verfahren und Vorrichtung zum Kühlen eine Walze
EP3895821B1 (fr) * 2020-04-14 2023-03-15 ABB Schweiz AG Détection d'unités de refroidissement défectueuses configurées pour fournir du liquide de refroidissement aux laminoirs
CN114571702B (zh) * 2022-03-17 2024-03-26 广东易聚源塑业科技有限公司 一种塑料母粒加工制备系统
CN114522982B (zh) * 2022-04-02 2023-02-24 燕山大学 一种热轧带材横向辊缝精细调整的分段冷却装置
WO2023242613A1 (fr) * 2022-06-13 2023-12-21 Arcelormittal Dispositif et procédé de refroidissement de rouleaux utilisés pour le laminage dans un environnement à hautes turbulences

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU651862A1 (ru) * 1977-05-23 1979-03-15 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов, Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Способ охлаждени прокатных валков и проката
SU749472A1 (ru) * 1978-04-12 1980-07-25 Днепропетровский Металлургический Институт Устройство дл охлаждени валков
DE3425129A1 (de) * 1984-07-07 1986-01-16 Brown, Boveri & Cie Ag, 6800 Mannheim Verfahren zur walzenkuehlung an einem kaltwalzwerk
KR930000465B1 (ko) 1985-05-17 1993-01-21 가부시기가이샤 히다찌세이사꾸쇼 압연기의 로울냉각장치 및 로울냉각방법
GB8514598D0 (en) * 1985-06-10 1985-07-10 Davy Mckee Poole Lubrication of rolling mills
JPH0757368B2 (ja) * 1987-06-03 1995-06-21 株式会社日立製作所 圧延機のロ−ル冷却装置
CH675974A5 (fr) * 1987-10-23 1990-11-30 Lauener Eng Ag
US5212975A (en) * 1991-05-13 1993-05-25 International Rolling Mill Consultants, Inc. Method and apparatus for cooling rolling mill rolls and flat rolled products
JPH07284820A (ja) * 1994-04-14 1995-10-31 Hitachi Ltd 圧延機用ロール冷却装置及び方法
JPH07290120A (ja) 1994-04-28 1995-11-07 Kawasaki Steel Corp ロール冷却装置
DE10206244A1 (de) * 2002-02-15 2003-08-28 Sms Demag Ag Vorrichtung zum Trockenhalten von Kaltband im Auslauf von Bandwalzanlagen
DE102004025058A1 (de) * 2004-05-18 2005-12-08 Sms Demag Ag Verfahren und Vorrichtung zur Kühlung und/oder Schmierung von Walzen und/oder Walzgut
RU2287384C1 (ru) * 2005-03-09 2006-11-20 Открытое акционерное общество "Северсталь" Способ охлаждения валков сортопрокатной клети
BE1017462A3 (fr) 2007-02-09 2008-10-07 Ct Rech Metallurgiques Asbl Dispositif et procede de refroidissement de cylindres de laminage en regime hautement turbulent.

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CN102421541A (zh) 2012-04-18
EP2403663A1 (fr) 2012-01-11
RU2011139995A (ru) 2013-04-10
DE102009053073A1 (de) 2010-09-09
DE102009053074A1 (de) 2010-09-09
EP2403663B2 (fr) 2021-03-10
US20120031159A1 (en) 2012-02-09
CN102421541B (zh) 2014-10-29
WO2010099924A1 (fr) 2010-09-10
RU2483817C1 (ru) 2013-06-10
WO2010099925A1 (fr) 2010-09-10
TW201036721A (en) 2010-10-16
TW201036722A (en) 2010-10-16

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