EP2792428A1 - Cooling device with width-dependent cooling effect - Google Patents
Cooling device with width-dependent cooling effect Download PDFInfo
- Publication number
- EP2792428A1 EP2792428A1 EP13163666.4A EP13163666A EP2792428A1 EP 2792428 A1 EP2792428 A1 EP 2792428A1 EP 13163666 A EP13163666 A EP 13163666A EP 2792428 A1 EP2792428 A1 EP 2792428A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transport direction
- cooling device
- spray bar
- spray
- intermediate frame
- 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.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 47
- 230000001419 dependent effect Effects 0.000 title description 2
- 230000000694 effects Effects 0.000 title 1
- 239000007921 spray Substances 0.000 claims abstract description 63
- 238000005096 rolling process Methods 0.000 claims abstract description 47
- 239000002826 coolant Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000000295 complement effect Effects 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
-
- 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
-
- 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
- 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
- Such a cooling device is known, for example, under the name Mulpic.
- this cooling device is in the Middle region on the one hand and in the two outer regions on the other hand via its own, individually controllable valve means a liquid cooling medium fed.
- the mean flow rate defines a symmetrical trapezoid whose parallel sides run transversely to the transport direction. The trapezoid and the two outer triangles complement each other to form a rectangle.
- the control takes place in such a way that the quantity of coolant applied to the flat rolling stock via the two outer regions and the quantity of coolant applied to the flat rolling stock over the central region are coordinated with one another such that a temperature of edge regions of the flat rolled product is at a temperature of a central region of the flat Walzguts is adjusted.
- the flat rolled stock may have a temperature wedge, as seen across the width of the flat stock, i. that the flat rolling stock is warmer on one side than on the other side. In such a case it would be advantageous to be able to cool one side of the flat rolling stock more than the other side. For this purpose, the procedure described above is unsuitable.
- the object of the present invention is to provide opportunities to eliminate such a temperature wedge.
- the valve devices are switched to binary, so are at a certain time either fully open or fully closed.
- the amount of liquid cooling medium fed into the regions may be adjusted by adjusting a working pressure generated by a respective pump and / or by adjusting a delivery rate effected by the respective pump.
- the valve devices can be designed as servo valves or as proportional valves.
- the liquid coolant in front of the valve means may be at a constant pressure, for example because upstream pumps produce a constant pressure or because a supply is from a high tank.
- the spray bar is usually above the passline arranged.
- the spray bar may alternatively be arranged below the passline. Often, however, there is more than just a spray bar.
- the number of spray bars is therefore at least two. In this case, preferably at least one spray bar is arranged above and below the passline.
- At least one of the spray bars may be arranged on a holding frame fixed relative to the pass line.
- this spraying bar may be associated with an adjusting device by means of which a distance of this spray bar from the passline is adjustable.
- This embodiment can be used in particular to maximize the distance from the passline when maintenance work on the spray bar and / or for example on a passport defining roller table should be made.
- An adjustment range, by which the distance is variable, can be determined as needed. It is preferably at least 20 cm, for example at least 30 cm, in particular at least 50 cm. Even larger values are possible.
- the two measures ie the adjustment of the distance and pivoting, can also be combined with one another in the same spray bar.
- the corresponding spray bar is arranged on an intermediate frame, which in turn is arranged on a retaining frame fixed relative to the pass line.
- the spraying bar and the intermediate frame are each assigned an adjusting device. It is possible that a distance of the spray bar from the intermediate frame is adjustable by means of the adjusting device associated with the spray bar.
- the intermediate frame by means of the adjustment device associated with the intermediate frame can be pivoted about the pivoting angle about the pivot axis.
- the reverse approach can be taken.
- the spray bar can be pivoted about the pivoting angle about the pivoting axis.
- the distance of the intermediate frame from the holding frame is adjustable in this case.
- the pivot axis is generally arranged transversely to the transport direction at the edge of this spray bar and extends parallel to the transport direction.
- the swivel angle can be determined as needed. Preferably, it is at least 20 °.
- the pivoting angle can be at least 30 °, at least 45 ° or at least 60 °. Even larger tilt angles - even up to 90 ° and beyond - are possible.
- a rolling mill for rolling flat rolling stock having the features of claim 11.
- a rolling train of the type mentioned above is configured in that the cooling device is designed according to the invention.
- FIG. 1 is a generally provided with the reference numeral 1 cooling device for a flat rolling stock 2 of the rolling stock 2 at the level of a passline 3 in a transport direction x through.
- the passline 3 can be defined for example by the arrangement of an upstream device and / or a downstream device.
- the upstream device can be designed, for example, as a casting device, as an oven or as a rolling stand.
- the downstream device can be designed, for example, as a roll stand, as a roller table or as a cooling section. Other embodiments are possible.
- the cooling device 1 has a number of spray bars 5, 6. It is possible that only a single spray bar 5, 6 is present. In general, however, a plurality of spray bars 5, 6 are present, so at least two spray bars 5, 6. In this case, as shown in FIG FIG. 1 Preferably, at least one of the spray bars 5, 6 is arranged above and below the pass line 3.
- the above the passline 3 arranged spray bar 5 is hereinafter referred to briefly as the upper spray bar 5, the below the passline 3 arranged spray bar 6 as the lower spray bar. 6
- the upper spray bar 5 extends - see FIG. 2 - transverse to the transport direction x. It has, viewed transversely to the transport direction x, two outer regions 7, 8.
- the upper spray bar 5 also has a central region 9.
- the central region 9 is seen transversely to the transport direction x between the two outer regions 7, 8 are arranged.
- a respective separate valve means 10, 11, 12, a liquid cooling medium 13 can be fed.
- the valve devices 10, 11, 12 are individually controllable by a control device 14. The control of each of the valve devices 10, 11, 12 is thus independent of the control of the respective other two valve devices 11, 12 and 10, 12 and 10, 11th
- the flat rolling stock 2 is acted upon by means of outlet openings 15, which are arranged in the central region 9, with a flow rate V1 of the liquid cooling medium 13.
- the flat rolling stock 2 by means of outlet openings 16, 17, which are arranged in the two outer regions 7, 8, with a respective flow rate V2, V3 of the liquid cooling medium 13 acted upon.
- the quantity curves V1, V2, V3 are referred to below as the linguistic distinction from each other as the average quantity profile V1, as the left outer quantity profile V2 and as the right outer quantity profile V3.
- the term "flow rate" in the context of the present invention does not relate to a time course, but to a local course. This is explained by the following explanations FIG. 3 and the 4 to 7 be more apparent.
- the mean quantity profile V1 is according to FIG. 3 transverse to the transport direction x seen in the middle maximum. Towards the edge, the mean volume profile V1 decreases. The waste is linear at both edges.
- the mean quantity curve V1 thus defines a middle triangle. One side of the middle triangle runs transversely to the transport direction x. The other two sides of the middle triangle are the same length. The middle triangle is thus an isosceles triangle.
- the left outer quantity profile V2 is according to FIG. 3 transverse to the transport direction x seen at the left edge maximum. Towards the middle, the left outer flow V2 falls off. The waste is linear towards the middle.
- the left outer quantity profile V2 thus defines a left outer triangle. One side of the left outer triangle runs parallel to the transport direction x. Another side of the left outer triangle runs transversely to the transport direction x. The left outer triangle is therefore a right-angled triangle.
- the right outer flow rate V3 is according to FIG. 3 transverse to the transport direction x seen at the right edge maximum. Towards the middle, the right outer flow rate V3 drops off. The waste is linear towards the middle.
- the right outer quantity curve V3 thus defines a right outer triangle. One side of the right outer triangle runs parallel to the transport direction x. Another side of the right outer triangle runs transversely to the transport direction x. The right outer triangle is also a right triangle.
- the outlet openings 15, 16, 17, for example, as shown in FIG. 2 be arranged in several rows, which follow each other as seen in the transport direction x.
- the outlet openings 15, 16, 17 may be designed accordingly, so that the amount of cooling medium 13 emerging from the respective outlet openings 15, 16, 17 varies.
- volume curves V1, V2, V3 represent the maximum possible quantity curves. So these flat runs V1, V2, V3, the flat rolling stock 2 is applied when the areas associated with the areas 7, 8, 9 valve devices 10, 11, 12 are fully open and Delivery amounts M1, M2, M3, which are fed into the areas 7, 8, 9, are maximum.
- the delivery rates M1, M2, M3 can be constant. Preferably, however, they are individually continuously adjustable. As a result, depending on the set flow rates M1, M2, M3, a desired resulting local flow rate V can be set within the control limits.
- the left outer region 7 associated valve device 11 is closed.
- the associated flow rate M2 is therefore 0.
- the right outer area 8 is supplied via the associated valve means 12, the maximum possible flow rate M3 (or a slightly smaller amount).
- the middle region 9 is supplied via the associated valve device 10, a mean flow rate M1.
- the corresponding quantity curves V1, V3 are in FIG. 4 dashed lines.
- the resulting total, resulting flow rate V is indicated by a solid line. It can be seen with the resulting flow rate V according to FIG. 4 a temperature wedge in the flat rolling stock 2 can be corrected.
- FIG. 5 is the left outer region 7 via the associated valve device 11, an average flow rate M2 supplied.
- the right outer region 8 is supplied via the associated valve device 12, a relatively high, but not the maximum flow rate M3.
- the central region 9 is the maximum via the associated valve device 10 possible delivery rate M1 (or a slightly smaller amount) supplied.
- the corresponding quantity curves V1, V2, V3 are in FIG. 5 dashed lines.
- the resulting total, resulting flow rate V is indicated by a solid line. It can be seen with the resulting flow rate V according to FIG. 5 Increased cooling of the central region of the flat rolled material 2 take place, but the two edges are cooled to different degrees.
- the left outer region 7 is supplied via the associated valve device 11, a relatively high flow rate M2.
- the right outer region 8 is supplied via the associated valve device 12, a slightly lower flow rate M3.
- the central region 9 associated with the valve device 10 is closed.
- the corresponding delivery rate M1 is therefore 0.
- the corresponding quantity progressions V2, V3 are in FIG. 5 drawn in solid lines.
- the total resulting, resulting flow rate V corresponds in the left part of the flow rate V2, in the right part of the flow rate V3. It can be seen with the resulting flow rate V according to FIG. 6 a different degrees of cooling of the edges of the flat rolled 2 take place.
- FIG. 7 are supplied to the right outer region 8 and the central region 9 delivery amounts M1, M3, which complement each other in the right part of the flat rolling stock 2 to a constant flow rate V.
- the delivery amount M2 supplied to the left outer region 7 could be smaller than the delivery amount M3 supplied to the right outer region 8. In this case, the left edge of the flat rolled stock 2 would be cooled weaker from the middle of the flat rolled stock 2, ie the resulting quantity course would fall off.
- the above in connection with the 4 to 7 explained delivery quantities M1, M2, M3 are purely exemplary. There are - as needed - other combinations possible.
- the valve devices 10, 11, 12 are formed as servo valves. Preferably, however, the valve devices 10, 11, 12 are switched to binary. So they are - depending on the drive state - either fully open or fully closed. Intermediate positions are not taken.
- the delivery rates M1, M2, M3 - if they are adjustable - by means of pumps 18, 19, 20 are set, which are respectively upstream of the respective valve means 10, 11, 12. It can be adjusted directly by the respective pump 18, 19, 20 effected flow rate M1, M2, M3. Alternatively or additionally, a working pressure p1, p2, p3 can be adjusted, which is effected by the respective pump 18, 19, 20 in a respective delivery line 21, 22, 23.
- the upper spray bar 5 is arranged on a holding frame 24.
- the support frame 24 is fixed with respect to the passline 3.
- the upper spray bar 5 is associated with an adjusting device 25.
- the adjusting device 25 may be formed (for example) as a number of hydraulic cylinder units. For example, two hydraulic cylinder units may be present, which are attached to the left and right of the support frame 24 and the upper spray bar 5.
- a setting range ⁇ a ie the difference between the maximum possible distance a and the minimum possible distance a, can be selected as required.
- the setting range ⁇ a is preferably at least 20 cm. It can also have larger values, for example 30 cm (or more) or 50 cm. Even larger values are possible.
- the upper spray bar 5 is also arranged on the stationary with respect to the passline 3 support frame 24. Also in the embodiment according to FIG. 9 is the upper spray bar 5 associated with an adjustment 25. Again, the adjustment 25 (for example) may be formed as a number of hydraulic cylinder units. By means of the adjusting device 25, the upper spray bar 5 is pivotable about a pivot axis 26.
- the pivot axis 26 is as shown in FIG FIG. 9 Seen transversely to the transport direction x seen at the edge of this spray bar 5. It preferably runs parallel to the transport direction x.
- a pivot angle ⁇ ie the angle by which the upper spray bar 5 is pivotable, can be selected as needed.
- the pivot angle ⁇ is at least 20 °.
- the pivoting angle ⁇ at least 30 °, at least 45 ° or at least 60 °. Even larger tilt angles ⁇ - even up to 90 ° and beyond - are possible.
- the two adjustment options that is, the setting of the distance a and the pivoting about the pivot axis 26 may also be combined with each other.
- the cooling device 1 according to the invention is according to FIG. 10 preferably used in a rolling mill, in which the flat rolled material 2 is rolled.
- the rolling mill has according to FIG. 10 at least one roughing stand 27 on.
- the rolling train has a number of finishing stands 28.
- the finishing stands 28 are arranged downstream of the roughing stand 27 in the transport direction x.
- the number of finishing stands 28 is usually between four and eight, usually at five, six or seven.
- the cooling device 1, as in FIG. 10 indicated by dashed lines, the roughing stand 27 is arranged directly upstream.
- the cooling device 1 is arranged downstream of the roughing stand 27. It is therefore arranged between the roughing stand 27 and the finishing stand 28, which is immediately downstream of the roughing stand 27.
- two cooling devices 1 may be present, with each one of the two cooling devices 1 the precast 27 is directly upstream and immediately downstream.
- the cooling device 1 can be used in the context of a so-called laminar cooling. Preferably, however, it is used in the context of a so-called intensive cooling.
- the working pressures p1, p2, p3 are generally at least 0.5 bar. Usually they are even above 1.0 bar. For example, they can be between 1.5 bar and 3.0 bar.
- the cooling device 1 has many advantages.
- flexible cooling of the flat rolling stock 2 over its entire width can be realized in a simple manner.
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Abstract
Eine Kühleinrichtung (1) wird von einem flachen Walzgut (2) in einer Transportrichtung (x) auf Höhe einer Passline (3) durchlaufen. Spritzbalken (5, 6) erstrecken sich quer zur Transportrichtung (x). Die Spritzbalken (5, 6) weisen quer zur Transportrichtung (x) gesehen je zwei äußere Bereiche (7, 8) und dazwischen einen mittleren Bereich (9) auf. In die Bereiche (7, 8, 9) ist über je eine eigene, individuell ansteuerbare Ventileinrichtung (10, 11, 12) ein flüssiges Kühlmedium (13) einspeisbar. Ein auf den mittleren Bereich (9) bezogener mittlerer Mengenverlauf (V1) des flüssigen Kühlmediums (13) ist quer zur Transportrichtung (x) gesehen in der Mitte maximal und fällt zum Rand hin ab, so dass der mittlere Mengenverlauf (V1) ein mittleres Dreieck definiert, bei dem eine Seite quer zur Transportrichtung (x) verläuft und die beiden anderen Seiten gleich lang sind. Auf die äußeren Bereiche (7, 8) bezogene äußeren Mengenverläufe (V2, V3) des flüssigen Kühlmediums (13) sind an den Rändern maximal und fallen zur Mitte hin ab, so dass die äußeren Mengenverläufe (V2, V3) jeweils ein äußeres Dreieck definieren, bei dem je eine Seite parallel und quer zur Transportrichtung (x) verläuft. Das mittlere Dreieck und die beiden äußeren Dreiecke ergänzen sich zu einem Rechteck.A cooling device (1) is run by a flat rolling stock (2) in a transport direction (x) at the level of a pass line (3). Spray bars (5, 6) extend transversely to the transport direction (x). The spray bars (5, 6) have, viewed transversely to the transport direction (x), two outer regions (7, 8) and a middle region (9) therebetween. In the areas (7, 8, 9) via a respective, individually controllable valve means (10, 11, 12), a liquid cooling medium (13) can be fed. An average quantity profile (V1) of the liquid cooling medium (13) relative to the central region (9) is maximum in the middle transversely to the transport direction (x) and drops towards the edge, so that the mean quantity profile (V1) is a middle triangle defined, in which one side is transverse to the transport direction (x) and the other two sides are the same length. Outer flow rates (V2, V3) of the liquid cooling medium (13), which are related to the outer regions (7, 8), are maximum at the edges and fall off towards the center, so that the outer flow paths (V2, V3) each define an outer triangle in which one side each runs parallel and transversely to the transport direction (x). The middle triangle and the two outer triangles complement each other to form a rectangle.
Description
Die vorliegende Erfindung betrifft eine Kühleinrichtung für ein flaches Walzgut,
- wobei das flache Walzgut die Kühleinrichtung in einer Transportrichtung auf Höhe einer Passline durchläuft,
- wobei die Kühlstrecke eine Anzahl an Spritzbalken aufweist, die sich quer zur Transportrichtung erstrecken,
- wobei der jeweilige Spritzbalken quer zur Transportrichtung gesehen zwei äußere Bereiche und einen zwischen den beiden äußeren Bereichen angeordneten mittleren Bereich aufweist,
- wobei das flache Walzgut mittels im mittleren Bereich angeordneter Auslassöffnungen mit einem mittleren Mengenverlauf des flüssigen Kühlmediums beaufschlagbar ist, der quer zur Transportrichtung gesehen in der Mitte maximal ist und zum Rand hin abfällt,
- wobei das flache Walzgut mittels in den äußeren Bereichen angeordneter Auslassöffnungen mit einem jeweiligen äußeren Mengenverlauf des flüssigen Kühlmediums beaufschlagbar ist, der quer zur Transportrichtung gesehen am jeweiligen Rand maximal ist und zur Mitte hin abfällt, so dass die äußeren Mengenverläufe jeweils ein äußeres Dreieck definieren, bei dem je eine Seite parallel und quer zur Transportrichtung verläuft.
- wherein the flat rolling stock passes through the cooling device in a transport direction at the level of a passline,
- wherein the cooling section has a number of spray bars that extend transversely to the transport direction,
- the respective spray bar having, viewed transversely to the transport direction, two outer regions and a middle region arranged between the two outer regions,
- wherein the flat rolling stock can be acted upon by means of outlet openings arranged in the middle region with a mean flow rate of the liquid cooling medium which is maximum in the middle transversely to the transport direction and drops towards the edge,
- wherein the flat rolling material is acted upon by means disposed in the outer regions outlet openings with a respective outer flow rate of the liquid cooling medium, which is seen transversely to the transport direction at the respective edge maximum and falls towards the center, so that the outer flow rates each define an outer triangle at each one side parallel and transverse to the transport direction.
Die vorliegende Erfindung betrifft weiterhin eine Walzstraße zum Walzen von flachen Walzgut,
- wobei die Walzstraße mindestens ein Vorgerüst und eine Anzahl von dem Vorgerüst nachgeordneten Fertiggerüsten aufweist,
- wobei eine derartige Kühleinrichtung dem Vorgerüst unmittelbar vorgeordnet ist oder zwischen dem Vorgerüst und dem unmittelbar nachgeordneten Fertiggerüst nachgeordnet ist.
- wherein the rolling train has at least one roughing stand and a number of finishing stands downstream of the roughing stand,
- wherein such a cooling device is directly upstream of the roughing stand or is arranged downstream between the roughing stand and the immediately downstream finishing stand.
Eine derartige Kühleinrichtung ist beispielsweise unter dem Namen Mulpic bekannt. Bei dieser Kühleinrichtung ist in den mittleren Bereich einerseits und in die beiden äußeren Bereiche andererseits über je eine eigene, individuell ansteuerbare Ventileinrichtung ein flüssiges Kühlmedium einspeisbar. Der mittlere Mengenverlauf definiert ein symmetrisches Trapez, dessen parallele Seiten quer zur Transportrichtung verlaufen. Das Trapez und die beiden äußeren Dreiecke ergänzen sich zu einem Rechteck. Die Ansteuerung erfolgt derart, dass die über die beiden äußeren Bereiche auf das flache Walzgut aufgebrachte Kühlmittelmenge und die über den mittleren Bereich auf das flache Walzgut aufgebrachte Kühlmittelmenge derart aufeinander abgestimmt sind, dass eine Temperatur von Kantenbereichen des flachen Walzguts an eine Temperatur eines Mittelbereichs des flachen Walzguts angepasst wird.Such a cooling device is known, for example, under the name Mulpic. In this cooling device is in the Middle region on the one hand and in the two outer regions on the other hand via its own, individually controllable valve means a liquid cooling medium fed. The mean flow rate defines a symmetrical trapezoid whose parallel sides run transversely to the transport direction. The trapezoid and the two outer triangles complement each other to form a rectangle. The control takes place in such a way that the quantity of coolant applied to the flat rolling stock via the two outer regions and the quantity of coolant applied to the flat rolling stock over the central region are coordinated with one another such that a temperature of edge regions of the flat rolled product is at a temperature of a central region of the flat Walzguts is adjusted.
In manchen Fällen kann das flache Walzgut über die Breite des flachen Walzguts gesehen einen Temperaturkeil aufweisen, d.h. dass das flache Walzgut an der einen Seite wärmer ist als an der anderen Seite. In einem derartigen Fall wäre es von Vorteil, die eine Seite des flachen Walzguts stärker kühlen zu können als die andere Seite. Hierfür ist die obenstehend beschriebene Vorgehensweise ungeeignet.In some cases, the flat rolled stock may have a temperature wedge, as seen across the width of the flat stock, i. that the flat rolling stock is warmer on one side than on the other side. In such a case it would be advantageous to be able to cool one side of the flat rolling stock more than the other side. For this purpose, the procedure described above is unsuitable.
Die Aufgabe der vorliegenden Erfindung besteht darin, Möglichkeiten zu schaffen, einen derartigen Temperaturkeil beseitigen zu können.The object of the present invention is to provide opportunities to eliminate such a temperature wedge.
Die Aufgabe wird durch eine Kühleinrichtung mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Kühleinrichtung sind Gegenstand der abhängigen Ansprüche 2 bis 10.The object is achieved by a cooling device with the features of claim 1. Advantageous embodiments of the cooling device according to the invention are the subject of the
Erfindungsgemäß wird eine Kühleinrichtung der eingangs genannten Art dadurch ausgestaltet,
- dass in die Bereiche über je eine eigene, individuell ansteuerbare Ventileinrichtung ein flüssiges Kühlmedium einspeisbar ist,
- dass der mittlere Mengenverlauf ein mittleres Dreieck definiert, bei dem eine Seite quer zur Transportrichtung verläuft und die beiden anderen Seiten gleich lang sind und
- dass das mittlere Dreieck und die beiden äußeren Dreiecke sich zu einem Rechteck ergänzen.
- in that a liquid cooling medium can be fed into the regions via a separate, individually controllable valve device,
- that the mean flow rate defines a middle triangle, in which one side is transverse to the transport direction and the other two sides are the same length and
- that the middle triangle and the two outer triangles add up to a rectangle.
Dadurch kann - im Rahmen der maximal möglichen Kühlmittelmengen - einem Temperaturkeil über die gesamte Breite des flachen Walzguts entgegengewirkt werden. Dennoch bleibt weiterhin die Möglichkeit erhalten, durch entsprechende - im Gegensatz zum Stand der Technik jedoch individuelle - Ansteuerung der beiden äußeren Bereiche die beiden Kanten des flachen Walzguts schwächer zu kühlen als den Mittelbereich des flachen Walzguts. Es ist sogar möglich, zwar beide Kanten schwächer zu kühlen als den Mittelbereich des flachen Walzguts, die beiden Kanten jedoch unterschiedlich stark zu kühlen.As a result - within the maximum possible quantities of coolant - a temperature wedge can be counteracted over the entire width of the flat rolling stock. Nevertheless, the possibility still remains of being able to cool the two edges of the flat rolling stock weaker than the middle region of the flat rolling stock by means of corresponding-unlike the prior art, however-individual control of the two outer regions. It is even possible, although both edges to cool weaker than the central region of the flat rolling, the two edges but to cool different degrees.
In einer besonders einfachen Ausgestaltung der Kühleinrichtung werden die Ventileinrichtungen binär geschaltet, sind also zu einem bestimmten Zeitpunkt entweder vollständig geöffnet oder vollständig geschlossen. Im einfachsten Fall besteht keine weitergehende Möglichkeit, die über den jeweiligen Bereich abgegebene Flüssigkeitsmenge zu beeinflussen. Vorzugsweise kann die Menge an in die Bereiche eingespeistem flüssigem Kühlmedium jedoch durch Anpassen eines mittels einer jeweiligen Pumpe generierten Arbeitsdruckes und/oder durch Anpassen einer mittels der jeweiligen Pumpe bewirkten Fördermenge eingestellt werden. Weiterhin können die Ventileinrichtungen als Servoventile oder als Proportionalventile ausgebildet sein. In diesem Fall kann das flüssige Kühlmittel vor den Ventileinrichtungen unter einem konstanten Druck stehen, beispielsweise weil vorgeordnete Pumpen einen konstanten Druck erzeugen oder weil eine Versorgung aus einem Hochbehälter erfolgt.In a particularly simple embodiment of the cooling device, the valve devices are switched to binary, so are at a certain time either fully open or fully closed. In the simplest case there is no further possibility to influence the amount of liquid dispensed over the respective area. Preferably, however, the amount of liquid cooling medium fed into the regions may be adjusted by adjusting a working pressure generated by a respective pump and / or by adjusting a delivery rate effected by the respective pump. Furthermore, the valve devices can be designed as servo valves or as proportional valves. In this case, the liquid coolant in front of the valve means may be at a constant pressure, for example because upstream pumps produce a constant pressure or because a supply is from a high tank.
In einer Minimalkonfiguration der erfindungsgemäßen Kühleinrichtung ist nur ein einziger Spritzbalken vorhanden. In diesem Fall ist der Spritzbalken in der Regel oberhalb der Passline angeordnet. In Einzelfällen kann der Spritzbalken alternativ unterhalb der Passline angeordnet sein. Oftmals ist jedoch mehr als nur ein Spritzbalken vorhanden. Die Anzahl an Spritzbalken beträgt also mindestens zwei. In diesem Fall ist vorzugsweise je mindestens ein Spritzbalken oberhalb und unterhalb der Passline angeordnet. Dadurch kann das flache Walzgut von beiden Seiten gleichermaßen gekühlt werden.In a minimal configuration of the cooling device according to the invention, only a single spray bar is present. In this case, the spray bar is usually above the passline arranged. In individual cases, the spray bar may alternatively be arranged below the passline. Often, however, there is more than just a spray bar. The number of spray bars is therefore at least two. In this case, preferably at least one spray bar is arranged above and below the passline. As a result, the flat rolling stock can be cooled equally from both sides.
Unabhängig von der Anzahl an Spritzbalken kann mindestens einer der Spritzbalken an einem bezüglich der Passline ortsfesten Halterahmen angeordnet sein. In diesem Fall kann diesem Spritzbalken eine Verstelleinrichtung zugeordnet sein, mittels derer ein Abstand dieses Spritzbalkens von der Passline einstellbar ist. Diese Ausgestaltung kann insbesondere dazu verwendet werden, den Abstand von der Passline zu maximieren, wenn Wartungsarbeiten an dem Spritzbalken und/oder beispielsweise an einem die Passline definierenden Rollgang vorgenommen werden sollen. Ein Stellbereich, um welchen der Abstand veränderbar ist, kann nach Bedarf bestimmt sein. Vorzugsweise beträgt er mindestens 20 cm, beispielsweise mindestens 30 cm, insbesondere mindestens 50 cm. Auch noch größere Werte sind möglich.Regardless of the number of spray bars, at least one of the spray bars may be arranged on a holding frame fixed relative to the pass line. In this case, this spraying bar may be associated with an adjusting device by means of which a distance of this spray bar from the passline is adjustable. This embodiment can be used in particular to maximize the distance from the passline when maintenance work on the spray bar and / or for example on a passport defining roller table should be made. An adjustment range, by which the distance is variable, can be determined as needed. It is preferably at least 20 cm, for example at least 30 cm, in particular at least 50 cm. Even larger values are possible.
Ebenso besteht die Möglichkeit, mittels der Verstelleinrichtung einen Spritzbalken, der an einem bezüglich der Passline ortsfesten Halterahmen angeordnet ist, um einen Schwenkwinkel um eine Schwenkachse zu verschwenken.It is also possible by means of the adjusting a spray bar, which is arranged on a fixed relative to the pass line holding frame to pivot about a pivot axis about a pivot axis.
Die beiden Maßnahmen, also das Verstellen des Abstandes und das Verschwenken, sind auch beim selben Spritzbalken miteinander kombinierbar. In diesem Fall ist der entsprechende Spritzbalken an einem Zwischenrahmen angeordnet, der seinerseits an einem bezüglich der Passline ortsfesten Halterahmen angeordnet ist. Dem Spritzbalken und dem Zwischenrahmen ist jeweils eine Verstelleinrichtung zugeordnet. Es ist möglich, dass mittels der dem Spritzbalken zugeordneten Verstelleinrichtung ein Abstand des Spritzbalkens von dem Zwischenrahmen einstellbar ist. In diesem Fall ist der Zwischenrahmen mittels der dem Zwischenrahmen zugeordneten Verstelleinrichtung um den Schwenkwinkel um die Schwenkachse verschwenkbar. Alternativ kann die umgekehrte Vorgehensweise ergriffen werden. In diesem Fall ist mittels der dem Spritzbalken zugeordneten Verstelleinrichtung der Spritzbalken um den Schwenkwinkel um die Schwenkachse verschwenkbar. Mittels der dem Zwischenrahmen zugeordneten Verstelleinrichtung ist in diesem Fall der Abstand des Zwischenrahmens vom Halterahmen einstellbar.The two measures, ie the adjustment of the distance and pivoting, can also be combined with one another in the same spray bar. In this case, the corresponding spray bar is arranged on an intermediate frame, which in turn is arranged on a retaining frame fixed relative to the pass line. The spraying bar and the intermediate frame are each assigned an adjusting device. It is possible that a distance of the spray bar from the intermediate frame is adjustable by means of the adjusting device associated with the spray bar. In this case, the intermediate frame by means of the adjustment device associated with the intermediate frame can be pivoted about the pivoting angle about the pivot axis. Alternatively, the reverse approach can be taken. In this case, by means of the adjusting device associated with the spray bar, the spray bar can be pivoted about the pivoting angle about the pivoting axis. By means of the intermediate frame associated adjusting device, the distance of the intermediate frame from the holding frame is adjustable in this case.
Falls ein Verschwenken möglich ist, ist die Schwenkachse in der Regel quer zur Transportrichtung gesehen am Rand dieses Spritzbalkens angeordnet und verläuft parallel zur Transportrichtung. Der Schwenkwinkel kann nach Bedarf bestimmt sein. Vorzugsweise beträgt er mindestens 20°. Beispielsweise kann der Schwenkwinkel mindestens 30°, mindestens 45° oder mindestens 60° betragen. Auch noch größere Schwenkwinkel - sogar bis zu 90° und darüber hinaus - sind möglich.If pivoting is possible, the pivot axis is generally arranged transversely to the transport direction at the edge of this spray bar and extends parallel to the transport direction. The swivel angle can be determined as needed. Preferably, it is at least 20 °. For example, the pivoting angle can be at least 30 °, at least 45 ° or at least 60 °. Even larger tilt angles - even up to 90 ° and beyond - are possible.
Die Aufgabe wird weiterhin durch eine Walzstraße zum Walzen von flachen Walzgut mit den Merkmalen des Anspruchs 11 gelöst. Erfindungsgemäß wird eine Walzstraße der eingangs genannten Art dadurch ausgestaltet, dass die Kühleinrichtung erfindungsgemäß ausgebildet ist.The object is further achieved by a rolling mill for rolling flat rolling stock having the features of
Die oben beschriebenen Eigenschaften, Merkmale und Vorteile dieser Erfindung sowie die Art und Weise, wie diese erreicht werden, werden klarer und deutlicher verständlich im Zusammenhang mit der folgenden Beschreibung der Ausführungsbeispiele, die in Verbindung mit den Zeichnungen näher erläutert werden. Hierbei zeigen in schematischer Darstellung:
- FIG 1
- eine Kühleinrichtung von der Seite,
- FIG 2
- eine Kühleinrichtung von einer Passline aus gesehen,
- FIG 3
- maximale Kühlmittelmengenverläufe,
- FIG 4
bis 7 - beispielhaft mögliche resultierende Kühlmittelmengenverläufe,
- FIG 8 und 9
- Verstellmöglichkeiten für einen Spritzbalken und
- FIG 10
- eine Walzstraße.
- FIG. 1
- a cooling device from the side,
- FIG. 2
- a cooling device seen from a passline,
- FIG. 3
- maximum coolant flow rates,
- 4 to 7
- exemplary possible resulting coolant flow rates,
- FIGS. 8 and 9
- Adjustments for a spray bar and
- FIG. 10
- a rolling mill.
Gemäß
Die Kühleinrichtung 1 weist eine Anzahl an Spritzbalken 5, 6 auf. Es ist möglich, dass nur ein einziger Spritzbalken 5, 6 vorhanden ist. In der Regel sind jedoch mehrere Spritzbalken 5, 6 vorhanden, also mindestens zwei Spritzbalken 5, 6. In diesem Fall ist entsprechend der Darstellung von
Nachfolgend werden in Verbindung mit den
Der obere Spritzbalken 5 erstreckt sich - siehe
Das flache Walzgut 2 ist mittels Auslassöffnungen 15, die im mittleren Bereich 9 angeordnet sind, mit einem Mengenverlauf V1 des flüssigen Kühlmediums 13 beaufschlagbar. In analoger Weise ist das flache Walzgut 2 mittels Auslassöffnungen 16, 17, die in den beiden äußeren Bereichen 7, 8 angeordnet sind, mit einem jeweiligen Mengenverlauf V2, V3 des flüssigen Kühlmediums 13 beaufschlagbar. Die Mengenverläufe V1, V2, V3 werden nachfolgend zur sprachlichen Unterscheidung voneinander als mittlerer Mengenverlauf V1, als linker äußerer Mengenverlauf V2 und als rechter äußerer Mengenverlauf V3 bezeichnet. Der Begriff "Mengenverlauf" bezieht sich im Rahmen der vorliegenden Erfindung nicht auf einen zeitlichen Verlauf, sondern auf einen örtlichen Verlauf. Dies wird anhand der nachfolgenden Erläuterungen zu
Wenn die dem mittleren Bereich 9 zugeordnete Ventileinrichtung 10 vollständig geöffnet wird, wird das flache Walzgut 2 mit dem mittleren Mengenverlauf V1 beaufschlagt. Der mittlere Mengenverlauf V1 ist gemäß
Wenn die dem linken äußeren Bereich 7 zugeordnete Ventileinrichtung 11 vollständig geöffnet wird, wird das flache Walzgut 2 mit dem linken äußeren Mengenverlauf V2 beaufschlagt. Der linke äußere Mengenverlauf V2 ist gemäß
Wenn die dem rechten äußeren Bereich 8 zugeordnete Ventileinrichtung 12 vollständig geöffnet wird, wird das flache Walzgut 2 mit dem rechten äußeren Mengenverlauf V3 beaufschlagt. Der rechte äußere Mengenverlauf V3 ist gemäß
Ersichtlich ergänzen sich das mittlere Dreieck und die beiden äußeren Dreiecke zu einem Rechteck. Ein resultierender örtlicher Mengenverlauf V, also die Summe der Mengenverläufe V1, V2 und V3, ist in
Zur Realisierung des jeweiligen dreieckigen Mengenverlaufs V1, V2, V3 können die Auslassöffnungen 15, 16, 17 beispielsweise entsprechend der Darstellung in
Die in
Gemäß
Gemäß
Gemäß
Gemäß
Um die Fördermengen M1, M2, M3 einstellen zu können, ist es möglich, dass die Ventileinrichtungen 10, 11, 12 als Servoventile ausgebildet sind. Vorzugsweise jedoch werden die Ventileinrichtungen 10, 11, 12 binär geschaltet. Sie sind also - je nach Ansteuerzustand - entweder vollständig geöffnet oder vollständig geschlossen. Zwischenstellungen werden nicht eingenommen. In diesem Fall werden die Fördermengen M1, M2, M3 - sofern sie einstellbar sind - mittels Pumpen 18, 19, 20 eingestellt, die der jeweiligen Ventileinrichtung 10, 11, 12 jeweils vorgeordnet sind. Es kann direkt die von der jeweiligen Pumpe 18, 19, 20 bewirkte Fördermenge M1, M2, M3 eingestellt werden. Alternativ oder zusätzlich kann ein Arbeitsdruck p1, p2, p3 angepasst werden, den die jeweilige Pumpe 18, 19, 20 in einer jeweiligen Förderleitung 21, 22, 23 bewirkt.In order to adjust the delivery rates M1, M2, M3, it is possible that the
Bei der Ausgestaltung gemäß
Bei der Ausgestaltung gemäß
Ein Schwenkwinkel α, also der Winkel, um den der obere Spritzbalken 5 verschwenkbar ist, kann nach Bedarf gewählt werden. Vorzugsweise beträgt der Schwenkwinkel α mindestens 20°. Beispielsweise kann der Schwenkwinkel α mindestens 30°, mindestens 45° oder mindestens 60° betragen. Auch noch größere Schwenkwinkel α - sogar bis zu 90° und darüber hinaus - sind möglich.A pivot angle α, ie the angle by which the
Die beiden Verstellmöglichkeiten, also das Einstellen des Abstands a und das Verschwenken um die Schwenkachse 26, können auch miteinander kombiniert sein.The two adjustment options, that is, the setting of the distance a and the pivoting about the
Die erfindungsgemäße Kühleinrichtung 1 wird gemäß
Die erfindungsgemäße Kühleinrichtung 1 kann im Rahmen einer sogenannten Laminarkühlung eingesetzt werden. Vorzugsweise wird sie jedoch im Rahmen einer sogenannten Intensivkühlung eingesetzt. Bei einer Intensivkühlung betragen die Arbeitsdrücke p1, p2, p3 in der Regel mindestens 0,5 bar. Meist liegen sie sogar oberhalb von 1,0 bar. Beispielsweise können sie zwischen 1,5 bar und 3,0 bar liegen.The cooling device 1 according to the invention can be used in the context of a so-called laminar cooling. Preferably, however, it is used in the context of a so-called intensive cooling. In the case of intensive cooling, the working pressures p1, p2, p3 are generally at least 0.5 bar. Usually they are even above 1.0 bar. For example, they can be between 1.5 bar and 3.0 bar.
Die erfindungsgemäße Kühleinrichtung 1 weist viele Vorteile auf. Insbesondere ist auf einfache Weise eine flexible Kühlung des flachen Walzguts 2 über dessen gesamte Breite realisierbar.The cooling device 1 according to the invention has many advantages. In particular, flexible cooling of the
Obwohl die Erfindung im Detail durch das bevorzugte Ausführungsbeispiel näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Erfindung zu verlassen.Although the invention has been further illustrated and described in detail by the preferred embodiment, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.
Claims (11)
dadurch gekennzeichnet ,
dass die Ventileinrichtungen (10, 11, 12) binär geschaltet werden und dass die Menge an in die Bereiche (7, 8, 9) eingespeistem flüssigem Kühlmedium (13) durch Anpassen eines mittels einer jeweiligen Pumpe (18, 19, 20) generierten Arbeitsdruckes (p1, p2, p3) und/oder durch Anpassen einer mittels der jeweiligen Pumpe (18, 19, 20) bewirkten Fördermenge (M1, M2, M3) eingestellt wird.Cooling device according to claim 1,
characterized ,
in that the valve devices (10, 11, 12) are switched to binary and that the amount of liquid cooling medium (13) fed into the regions (7, 8, 9) is adjusted by adjusting a working pressure generated by a respective pump (18, 19, 20) (p1, p2, p3) and / or by adjusting a by means of the respective pump (18, 19, 20) effected flow rate (M1, M2, M3) is set.
dadurch gekennzeichnet ,
dass die Anzahl an Spritzbalken (5, 6) mindestens zwei beträgt und dass je mindestens ein Spritzbalken (5, 6) oberhalb und unterhalb der Passline (3) angeordnet ist.Cooling device according to claim 1 or 2,
characterized ,
that the number of spray bars (5, 6) is at least two and that at least one spray bar (5, 6) is arranged above and below the pass line (3).
dadurch gekennzeichnet ,
dass mindestens einer der Spritzbalken (5, 6) an einem bezüglich der Passline (3) ortsfesten Halterahmen (24) angeordnet ist und dass diesem Spritzbalken (5, 6) eine Verstelleinrichtung (25) zugeordnet ist, mittels derer ein Abstand (a) dieses Spritzbalkens (5, 6) von der Passline (3) einstellbar ist.Cooling device according to claim 1, 2 or 3,
characterized ,
in that at least one of the spray bars (5, 6) is arranged on a holding frame (24) fixed relative to the pass line (3) and that this spraying bar (5, 6) is assigned an adjusting device (25) by means of which a distance (a) of this Spray bar (5, 6) of the passline (3) is adjustable.
dadurch gekennzeichnet,
dass ein Stellbereich (δa), um welchen der Abstand (a) veränderbar ist, mindestens 20 cm beträgt.Cooling device according to claim 4,
characterized,
that a control range is changed (.DELTA.a), by which the distance (a) is at least 20 cm.
dadurch gekennzeichnet,
dass mindestens einer der Spritzbalken (5, 6) an einem bezüglich der Passline (3) ortsfesten Halterahmen (24) angeordnet ist und dass diesem Spritzbalken (5, 6) mindestens eine Verstelleinrichtung (25) zugeordnet ist, mittels derer dieser Spritzbalken (5, 6) um einen Schwenkwinkel (α) um eine Schwenkachse (26) verschwenkbar ist.Cooling device according to claim 1, 2 or 3,
characterized,
in that at least one of the spray bars (5, 6) is arranged on a holding frame (24) fixed relative to the pass line (3) and that this spray bar (5, 6) is assigned at least one adjusting device (25) by means of which these spray bars (5, 6) about a pivot angle (α) about a pivot axis (26) is pivotable.
dadurch gekennzeichnet ,
dass mindestens einer der Spritzbalken (5, 6) an einem Zwischenrahmen angeordnet ist, der seinerseits an einem bezüglich der Passline (3) ortsfesten Halterahmen (24) angeordnet ist, dass diesem Spritzbalken (5, 6) und dem Zwischenrahmen jeweils eine Verstelleinrichtung (25) zugeordnet ist und dass mittels der diesem Spritzbalken (5, 6) zugeordneten Verstelleinrichtung (25) ein Abstand dieses Spritzbalkens (5, 6) von dem Zwischenrahmen einstellbar ist und der Zwischenrahmen mittels der dem Zwischenrahmen zugeordneten Verstelleinrichtung (25) um einen Schwenkwinkel (α) um eine Schwenkachse (26) verschwenkbar ist.Cooling device according to claim 1, 2 or 3,
characterized ,
in that at least one of the spray bars (5, 6) is arranged on an intermediate frame, which in turn is arranged on a holding frame (24) fixed relative to the pass line (3), that this spraying bar (5, 6) and the intermediate frame each have an adjusting device (25 ) is assigned and that by means of this said spray bar (5, 6) associated adjusting device (25) a distance of this spray bar (5, 6) of the intermediate frame is adjustable and the intermediate frame by means of the intermediate frame associated adjusting device (25) by a pivot angle (α ) is pivotable about a pivot axis (26).
dadurch gekennzeichnet,
dass mindestens einer der Spritzbalken (5, 6) an einem Zwischenrahmen angeordnet ist, der seinerseits an einem bezüglich der Passline (3) ortsfesten Halterahmen (24) angeordnet ist, dass diesem Spritzbalken (5, 6) und dem Zwischenrahmen jeweils eine Verstelleinrichtung (25) zugeordnet ist und dass mittels der diesem Spritzbalken (5, 6) zugeordneten Verstelleinrichtung (25) dieser Spritzbalken (5, 6) um einen Schwenkwinkel (α) um eine Schwenkachse (26) verschwenkbar ist und mittels der dem Zwischenrahmen zugeordneten Verstelleinrichtung (25) ein Abstand des Zwischenrahmens vom Halterahmen (24) einstellbar ist.Cooling device according to claim 1, 2 or 3,
characterized,
in that at least one of the spray bars (5, 6) is arranged on an intermediate frame, which in turn is arranged on a holding frame (24) fixed relative to the pass line (3), that this spraying bar (5, 6) and the intermediate frame each have an adjusting device (25 ) and that by means of this said spray bar (5, 6) associated adjusting device (25) of said spray bar (5, 6) about a pivot angle (α) about a pivot axis (26) is pivotable and by means of the intermediate frame associated adjusting device (25) a distance of the intermediate frame from the holding frame (24) is adjustable.
dass die Schwenkachse (26) quer zur Transportrichtung (x) gesehen am Rand dieses Spritzbalkens (5, 6) angeordnet ist und parallel zur Transportrichtung (x) verläuft.Cooling device according to one of claims 6, 7 or 8, characterized
that the pivot axis (26) seen transversely to the transport direction (x) at the edge of this spray bar (5, 6) is arranged and parallel to the transport direction (x).
dass der Schwenkwinkel (α) mindestens 20° beträgt.Cooling device according to one of claims 6 to 9, characterized
that the swivel angle (α) is at least 20 °.
Priority Applications (8)
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EP13163666.4A EP2792428A1 (en) | 2013-04-15 | 2013-04-15 | Cooling device with width-dependent cooling effect |
JP2016508077A JP6110015B2 (en) | 2013-04-15 | 2014-04-04 | Cooling device whose cooling action depends on width |
US14/784,812 US9868142B2 (en) | 2013-04-15 | 2014-04-04 | Cooling device with breadth-dependent cooling action |
CN201480021293.XA CN105188975B (en) | 2013-04-15 | 2014-04-04 | Cooling device with the related cooling action of breadth |
KR1020157032606A KR102280234B1 (en) | 2013-04-15 | 2014-04-04 | Cooling device with breadth-dependent cooling action |
RU2015141167A RU2652606C2 (en) | 2013-04-15 | 2014-04-04 | Cooling device with breadth-dependent cooling action |
PCT/EP2014/056771 WO2014170139A1 (en) | 2013-04-15 | 2014-04-04 | Cooling device with breadth-dependent cooling action |
EP14718020.2A EP2986400B1 (en) | 2013-04-15 | 2014-04-04 | Cooling device with width-dependent cooling effect |
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EP13163666.4A EP2792428A1 (en) | 2013-04-15 | 2013-04-15 | Cooling device with width-dependent cooling effect |
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EP13163666.4A Withdrawn EP2792428A1 (en) | 2013-04-15 | 2013-04-15 | Cooling device with width-dependent cooling effect |
EP14718020.2A Active EP2986400B1 (en) | 2013-04-15 | 2014-04-04 | Cooling device with width-dependent cooling effect |
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US (1) | US9868142B2 (en) |
EP (2) | EP2792428A1 (en) |
JP (1) | JP6110015B2 (en) |
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CN104324957A (en) * | 2014-11-25 | 2015-02-04 | 山东钢铁股份有限公司 | Rapid leveling liquid emptying device |
EP3308868A1 (en) * | 2016-10-17 | 2018-04-18 | Primetals Technologies Austria GmbH | Cooling of a roll of a roll stand |
WO2018073086A1 (en) * | 2016-10-17 | 2018-04-26 | Primetals Technologies Austria GmbH | Cooling a roll of a roll stand |
CN109843458A (en) * | 2016-10-17 | 2019-06-04 | 首要金属科技奥地利有限责任公司 | The cooling of the roll of mill stand |
RU2726525C1 (en) * | 2016-10-17 | 2020-07-14 | Прайметалз Текнолоджиз Аустриа ГмбХ | Roller mill roll cooling |
US11338339B2 (en) | 2016-10-17 | 2022-05-24 | Primetals Technologies Austria GmbH | Cooling a roll of a roll stand |
CN109843458B (en) * | 2016-10-17 | 2022-06-17 | 首要金属科技奥地利有限责任公司 | Cooling of rolls of a rolling stand |
EP3385008A1 (en) * | 2017-04-04 | 2018-10-10 | Primetals Technologies Austria GmbH | Descaling device and method for chemically descaling a metal strip |
WO2018185028A1 (en) * | 2017-04-04 | 2018-10-11 | Primetals Technologies Austria GmbH | Descaling device and method for chemically descaling a metal strip |
RU2753355C2 (en) * | 2017-04-04 | 2021-08-13 | Прайметалз Текнолоджиз Аустриа ГмбХ | Descaling device and method for chemical descaling from metal strip |
Also Published As
Publication number | Publication date |
---|---|
US20160052033A1 (en) | 2016-02-25 |
US9868142B2 (en) | 2018-01-16 |
CN105188975B (en) | 2017-08-25 |
WO2014170139A1 (en) | 2014-10-23 |
KR102280234B1 (en) | 2021-07-21 |
EP2986400A1 (en) | 2016-02-24 |
CN105188975A (en) | 2015-12-23 |
RU2652606C2 (en) | 2018-04-27 |
JP6110015B2 (en) | 2017-04-05 |
EP2986400B1 (en) | 2017-10-11 |
RU2015141167A (en) | 2017-05-17 |
JP2016515474A (en) | 2016-05-30 |
KR20150143746A (en) | 2015-12-23 |
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