WO2006109380A1 - 圧延機及び圧延方法 - Google Patents
圧延機及び圧延方法 Download PDFInfo
- Publication number
- WO2006109380A1 WO2006109380A1 PCT/JP2006/304758 JP2006304758W WO2006109380A1 WO 2006109380 A1 WO2006109380 A1 WO 2006109380A1 JP 2006304758 W JP2006304758 W JP 2006304758W WO 2006109380 A1 WO2006109380 A1 WO 2006109380A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wiper
- rolled material
- roll
- rolling
- coolant
- Prior art date
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Classifications
-
- 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
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0281—Cleaning devices removing liquids removing coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/032—Rolls for sheets or strips
-
- 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
- B21B45/0269—Cleaning
- B21B45/029—Liquid recovering devices
- B21B45/0293—Recovering coolants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Definitions
- the present invention relates to a rolling mill and a rolling method provided with a wiper device that removes foreign matters adhering to the surface of a rolled material.
- the rolled material rolled by the rolling mill is eventually wound up in a coil shape, if the coolant remains attached to the surface of the rolled material, the rolled material is slipped during winding and the shaft is rolled. There will be a wobbling (telescopic) in the direction, which will impair operational stability. Also, in the annealing process in the subsequent process, gloss unevenness and rust are generated and the surface quality of the rolled material is significantly impaired.
- Patent Documents 1 and 2 disclose a conventional rolling mill including the above.
- Patent Document 1 Japanese Patent Application Laid-Open No. 5-293531
- Patent Document 2 Japanese Patent Laid-Open No. 10-146611
- Patent Document 1 it is necessary to supply lubricating oil to a plurality of short-length backup roll bearings that support the wiper roll, and in order to prevent the lubricating oil from scattering, It is necessary to collect the lubricating oil in order to increase the complexity of the equipment. End up. Also, during high-speed rolling, a high load is applied to a small bearing and the life is shortened, resulting in an increase in running cost and a decrease in productivity. Further, the removed coolant adheres to the wiper roll surface outside the sheet width and is scattered downstream in the rolling direction by the centrifugal force of the rotation, so that the scattered coolant reattaches to the surface of the rolled material. There is a fear.
- the force that corrects the deflection of the wiper roll by the pressing devices provided at both ends. Because the diameter of the wiper roll is small, the pressing is limited to the vicinity of the plate end, and the deflection is applied to the entire region in the plate width direction. There is no uniformity of straightening and pressing force. As a result, the effect of removing the coolant becomes non-uniform in the sheet width direction of the rolled material, while waviness occurs in the length direction.
- Patent Document 2 after passing through the wiper roll, air is sprayed in the width direction of the rolled material, and the edge force on both width sides is also sucked in. Therefore, vacuum suction for sucking air is performed. Introducing equipment costs. In addition, by providing such a vacuum suction device, the reversible rolling mill increases the distance to the winding device for scraping the rolled material, and increases the unrolled length and the distance to various measuring instruments. This will lead to a decrease in product yield. Furthermore, as in Patent Document 1, the scattered coolant may reattach to the surface of the rolled material.
- the present invention solves the above-mentioned problem, and can uniformly deform the pressing force in the sheet width direction of the rolled material to prevent deformation and perform uniform wiping in the sheet width direction.
- An object is to provide a rolling machine and a rolling method.
- a rolling mill according to a first invention for solving the above-described problems is
- a work roll consisting of a pair of upper and lower parts for rolling the rolled material
- a coolant device for supplying coolant for cooling and lubricating the rolled material and the work roll;
- a rolling mill comprising a wiper device for removing the coolant adhered to the rolled material
- the wiper device From the upstream in the rolling direction, the wiper device
- An air injection device that injects air from the downstream side in the rolling direction with respect to the vicinity of the end of the rolled material that is wiped by the second wiper roll.
- a rolling mill according to a second invention for solving the above-mentioned problems is
- a shaft end support member that respectively supports shaft ends of the first wiper roll and the second wiper roll
- a rolling mill according to a third invention for solving the above-mentioned problems is
- the first wiper roll and the second wiper roll are flat rolls, and the upper and lower roll axes are arranged so as to cross each other with respect to the sheet width direction, and the first wiper roll and the second wiper roll are the same. It is characterized by being arranged so as to cross in the direction.
- a rolling mill according to a fourth invention for solving the above-described problem is
- the first wiper roll and the second wiper roll are arranged so as to cross in opposite directions.
- a rolling mill according to a fifth invention for solving the above-mentioned problems is as follows.
- a cross angle setting mechanism for setting a cross angle according to the plate width of the rolled material is provided.
- a rolling mill according to a sixth invention for solving the above-mentioned problems is as follows. In the rolling mill according to the second invention!
- the first wiper roll to which the shaft end support member is attached and the second wiper roll to which the shaft end support member is attached are installed interchangeably.
- a rolling method according to a seventh invention for solving the above-described problems is as follows.
- the rolling method for removing the coolant adhering to the rolled material is used.
- the rolled material is wiped by a hollow first pair of upper and lower wiper rolls that have been crowned, and the coolant is prevented from being scattered and reattached to the rolled material. Further, the rolled material is further wiped by a second wiper roll having a pair of hollow upper and lower forces, and the force in the vicinity of the end of the rolled material that is wiped by the second wiper roll is discharged. Spray to remove
- a rolling method according to an eighth invention for solving the above-described problems is as follows.
- the first wiper roll and the second wiper roll are flattened so that the upper and lower roll shafts cross each other in the width direction of the plate.
- a rolling method according to a ninth invention for solving the above-described problems is as follows.
- a coolant that supplies a coolant for cooling and lubricating the work roll, which is a pair of upper and lower rolls for rolling the rolled material, and the rolled material and the work roll.
- a wiper device for removing the coolant adhering to the rolled material,
- the wiper device includes a first wiper roll having a pair of hollow upper and lower forces wiping the rolled material and crowned from the upstream side in the rolling direction, and scattering of the coolant.
- the pressing force in the plate width direction of the rolled material is made uniform to prevent deformation, and in the plate width direction. Uniform wiping can be performed.
- a shaft end support member that respectively supports shaft ends of the first wiper roll and the second wiper roll;
- the first wiper roll and the second wiper roll are flat rolls, and are vertically
- the roll shafts are arranged so as to cross each other, and the first wiper roll and the second wiper roll are arranged so as to cross in the same direction, so that the pressing force in the sheet width direction of the rolled material is made uniform. Deformation can be prevented and uniform wiping can be performed in the plate width direction.
- the first wiper roll and the second wiper roll are arranged so as to cross each other in the opposite direction.
- the rolled material can be conveyed stably.
- the rolling mill of the fifth invention in the rolling mill of the third or fourth invention, by providing a cross angle setting mechanism for setting a cross angle according to the plate width of the rolled material.
- the cross angle can be easily changed.
- the first wiper roll to which the shaft end support member is attached and the shaft end support member to which the shaft end support member is attached are described above.
- the second wiper roll can be installed interchangeably to improve maintainability. Can be raised.
- a crowning force is applied.
- a hollow pair of hollow upper and lower surfaces subjected to a crowning carriage is rubbed with a first wiper roll having a hollow upper and lower pair of force, while preventing the coolant from splashing and reattaching to the rolled material.
- the rolled material is further wiped by the second wiper roll, and the force in the vicinity of the end of the rolled material to be wiped by the second wiper roll is removed by ejecting the downstream coolant in the rolling direction with air.
- the first wiper roll and the second wiper roll are flattened in the sheet width direction.
- the pressing force of the rolled material in the sheet width direction is made uniform to prevent deformation, and uniform wiping can be performed in the sheet width direction.
- either the crown carriage or the cross arrangement is at least provided to the second wiper roll. By being applied, uniform wiping can be performed in the plate width direction of the rolled material.
- FIG. 1 is a schematic view of a rolling mill according to an embodiment of the present invention.
- FIG. 2 is a schematic view of a wiper device.
- FIG. 3 is a cross-sectional view of a wiper roll that has been subjected to a crowned cauldron.
- FIG. 4 is a schematic view showing a wiper roll support structure.
- FIG. 5 is a cross-sectional view of a wiper roll subjected to a flat force.
- FIG. 6 is a diagram showing the surface pressure between a wiper roll subjected to crowning and a wiper roll subjected to flat processing during rolling.
- FIG. 8 is a top view of FIG.
- FIG. 9 is another cross layout of a wiper roll subjected to flat processing in another wiper apparatus.
- FIG. 10 is a top view of FIG.
- FIG. 11 is a diagram showing a surface pressure between a wiper roll subjected to crowning and a wiper roll having a cross arrangement subjected to flat processing during rolling.
- FIG. 12 is a schematic view of a rolling mill according to another embodiment of the present invention.
- FIG. 1 is a schematic view of a rolling mill according to an embodiment of the present invention
- FIG. 2 is a schematic view of a wiper device
- FIG. 3 is a cross-sectional view of a wiper roll subjected to crowning processing
- FIG. 4 is a support structure of the wiper roll.
- Fig. 5 is a cross-sectional view of a wiper roll subjected to flat processing
- Fig. 6 is a diagram illustrating the surface pressure between the wiper roll subjected to crowning and the wiper roll subjected to flat processing during rolling.
- Fig. 7 is a cross-sectional view of a wiper roll with flat processing in another wiper device
- FIG. 8 is a top view of Fig. 7, and Fig. 9 is another cross of a wiper roll with flat force in another wiper device.
- Fig. 10 is a top view of Fig. 9;
- Fig. 11 is a diagram showing the surface pressure of a wiper roll that has been subjected to crawling and a cross-arranged wiper roll that has been subjected to flat processing during rolling;
- FIG. 12 is a schematic view of a rolling mill according to another embodiment of the present invention. In addition, the arrow in a figure has shown the rolling direction.
- a tandem rolling mill 1 is composed of a first rolling stand 2 and a second rolling stand. 3, coolant header 4 and wiper device 5.
- the rolling stands 2 and 3 have the same configuration, and the rolling stand 2 includes work rolls 6a and 6b for rolling the rolled material S, intermediate rolls 7a and 7b for supporting the work rolls 6a and 6b, and the intermediate rolls 7a and 7b. Reinforcing rolls 8a and 8b for supporting the rolls 7a and 7b are provided.
- the rolling stand 3 includes work rolls 9a and 9b for rolling the rolled material S and these work rolls 9a and 9b.
- the intermediate rolls 10a and 10b to be supported and the reinforcing rolls 11a and ib to support the intermediate rolls 10a and 10b are provided with force.
- the coolant header 4 has a configuration in which a plurality of nozzles (not shown) are arranged in the width direction of the rolled material S, and is provided on the upstream and downstream sides of the work rolls 6a, 6b, 9a, 9b in the rolling direction.
- the coolant C for cooling and lubricating the rolling material S and the work rolls 6a, 6b, 9a, 9b water or oil or a mixture of water and oil is injected.
- the wiper device 5 is provided downstream of the rear stand 3 in the rolling direction, and removes deposits such as coolant C adhering to the surface of the rolled material S.
- the wiper device 5 is provided with first wiper rolls 12a and 12b that have both upstream force in the rolling direction and a pair of upper and lower forces, upper and lower shielding plates 13a and 13b, second wiper rolls 14a and 14b that are a pair of upper and lower sides, and air injection devices 15a and 15b. It has been.
- the ino rolls 12a, 12b, 14a, 14b are thin-walled hollow and are crowned, and the outer diameter of the central portion in the axial direction is directed toward the thick end. It is formed to be thin.
- each of the first and second wipers 12 a, 12 b has shaft ends at which both ends of the first wiper rolls 12 a, 12 b are provided so as to sandwich the rolled material S from above and below. While being supported rotatably by the support members 16a and 16b, both ends of the second wiper rolls 14a and 14b are rotatably supported by the shaft end support members 17a and 17b. In other words, the rolled material S is rotated along with the heels of the swords 12a, 12b, 14a, 14bi.
- the wiper device 5 is provided with a housing 18, and a structural support 19 is supported substantially at the center in the rolling direction.
- the shaft end support members 16a and 16b are supported so as to be movable in the vertical direction between the inner surface of the housing 18 on the upstream side in the rolling direction and the structural support body 19, and the shaft end support members 17a and 17b are supported by the housing 18 The inner surface downstream of the rolling direction
- the structure support 19 is supported so as to be movable in the vertical direction.
- the shaft end support members 16a, 16b, 17a, and 17b are formed in substantially the same shape, and the shaft end support member 16a and the shaft end support member 17a, and the shaft end support member 16b and the shaft end support member 17b are interchanged. It is possible to move independently of each other.
- the upper shielding plate 13a is disposed between the first wiper roll 12a and the second wiper roll 14a above the center of the wiper device 5 (housing 18) in the rolling direction.
- a groove portion 20 extends in the plate width direction (in the axial direction of the wiper rolls 12a and 12b) at the lower portion thereof.
- the groove portion 20 may be installed approximately in the barrel length of the first wiper rolls 12a and 12b which is longer than the maximum sheet width of the rolled material S.
- the lower shielding plate 13b is supported between the first wiper roll 12b and the second wiper roll 14b at a position approximately below the center of the wiper device 5 (housing 18) in the rolling direction.
- the air injection devices 15a and 15b have a configuration in which a plurality of nozzles (not shown) are arranged in the width direction of the rolled material S. From the up and down direction on the downstream side of the second wiper rolls 14a and 14b in the rolling direction. Air A is sprayed onto the rolled material S and the second wiper rolls 14a and 14b to remove deposits such as coolant C adhering to the surfaces of the rolled material S and the second wiper rolls 14a and 14b.
- the rolled material S that has passed through the wiper device 5 is conveyed to a winding device (not shown) and wound in a coil shape.
- the rolled material S to be conveyed is rolled to a predetermined thickness by adjusting the rolling force and bending force between the rotating work rolls 6a and 6b and between the work rolls 9a and 9b.
- the work rolls 6a, 6b, 9a, 9a are bent by a roll group such as intermediate rolls 7a, 7b, 10a, 10b and reinforcing rolls 8a, 8b, 11a, l ib supported from behind.
- a roll group such as intermediate rolls 7a, 7b, 10a, 10b and reinforcing rolls 8a, 8b, 11a, l ib supported from behind.
- a roll group such as intermediate rolls 7a, 7b, 10a, 10b and reinforcing rolls 8a, 8b, 11a, l ib supported from behind.
- the form of the group of tools supported from the back in the present embodiment described above is not limited to this, and is supported by a plurality of roll groups from the vertical direction or by a plurality of multi-stage roll groups
- Coolant C is injected from the coolant header 4 to cool it. Can be rejected and lubricated.
- the coolant header 4 may have a single-row configuration or a multi-row configuration, and the supply method may be a zone coolant method in which multiple nozzles are simultaneously ONZOFF or a spot coolant method in which each nozzle is ONZOFF. Good.
- the rolled material S, onto which the coolant C sprayed during rolling is adhered, is conveyed to the wiper device and is sandwiched between the first wiper rolls 12a and 12b and between the second wiper rolls 14a and 14b. As a result, the coolant C is removed.
- the inertia force is reduced and slip is prevented, thereby rolling the rolled material. It is possible to prevent S quality deterioration and yield reduction, and to cope with high-speed rolling.
- the wiper roll obtains a rotational driving force from the rolled material
- the wiper backup roll also obtains the rotational driving force from the wiper roll.
- the backup roll slips without being able to follow the acceleration / deceleration of the rolled material, causing scratches on both rolls, which are transferred to the rolled material, resulting in reduced quality of the rolled material.
- the wiper rolls 12a, 12b, 14a, 14b are supported by the shaft end support members 16a, 16b, 17a, 17b at both ends thereof. Therefore, if a wiper roll (flat wiper rolls 21a, 21b, 22a, 22b described later) as shown in FIG. 5 is simply provided, the pressing force against the rolled material, that is, the rolled material S and the first The surface pressure between the wiper rolls 12 a and 12 b or the second wiper rolls 14 a and 14 b becomes nonuniform, and the shape of the rolled material S may be disturbed. In addition, non-uniform wibbing properties in the plate width direction occur.
- the surface pressures of the wiper roll that has been subjected to crowning and the wiper roll that has been subjected to flat processing in the width direction of the rolled material are compared.
- the surface pressure of the wiper roll subjected to crowning karoe is indicated by a solid line
- the surface pressure of a wiper roll subjected to flat processing is indicated by a dashed line.
- a wiper roll that has been subjected to the crowning process can apply a substantially smooth and constant surface pressure throughout the entire width of the force plate where there is a portion with a slightly higher surface pressure near the end of the plate.
- Fig. 6 also shows the surface pressure distribution when changing the sheet width of the rolled material.When the sheet width is changed, the flat surface processed wiper roll has a surface pressure distribution in the sheet width direction. Is uneven. On the other hand, with a wiper roll that has been subjected to crowner caye, even if the plate width is changed, the surface pressure distribution in the plate width direction hardly changes, and a substantially constant surface pressure can be applied.
- wiper rolls 12a, 12b, 14a, 14b with a crowning cage are provided. Accordingly, a substantially constant surface pressure can be applied in the sheet width direction without depending on the sheet width of the rolled material s, and the coolant removal ability can be uniformly formed in the sheet width direction. Also rolled material
- the coolant C formed in a thick layer on the surface of the rolled material S is removed by the first wiper rolls 12a and 12b.
- the coolant C adhering to the surface of the rolled material S is caused to flow outward in the width direction of the rolled material S or upstream in the rolled material direction by the wiping of the first wiper rolls 12a and 12b.
- the coolant C that has flowed outside the sheet width falls directly below the rolled material S, or is placed on the surface of the gap between the first wiper roll 12a and the first wiper roll 12b outside the sheet width and downstream in the rolling direction. Taken out.
- the first wiper rolls 12a and 12b are rotated as the rolled material S is conveyed, the coolant C is scattered by the centrifugal force.
- the scattered coolant C is provided so that it does not adhere to the surface of the rolled material S again.
- the upper and lower shielding plates 13a and 13b and the upper shielding plate 13a and the lower shielding plate 13b have a structure.
- the upper shielding plate 13a is formed in a plate shape, and a groove portion 20 that collects the coolant C scattered upward and discharges it toward the outside in the width direction of the rolled material S is provided at an end portion thereof.
- the lower shielding plate 13b is formed in a plate shape, and collects the coolant C scattered downward and discharges it toward the outer side or the lower side of the rolled material S in the width direction.
- the coolant C remaining thinly on the surface of the rolled material S is further removed by wiping the second wiper rolls 14a and 14b.
- the second wiper rolls 14a and 14b are preferably of the same specifications as the first wiper rolls 12a and 12b in consideration of maintenance ability.
- the coolant S removed to the outside in the width direction of the rolled material S by the wiping of the second wiper rolls 14a and 14b is a force that falls below the second wiper rolls 14a and 14b outside the plate width, or the second Wiper rolls 14a and 14b adhere to the surface and roll in the rolling direction along with their rotation. Taken out to the side.
- the total amount of coolant C taken out per rotation is very small compared to the amount taken out by the first wiper rolls 12a and 12b.
- the coolant C is scattered. There is nothing.
- the downstream force in the rolling direction is also applied to the vicinity of both ends of the rolled material S of the second wiper tools 14a and 14b by injecting air A from the air injection devices 15a and 15b, and the surfaces of the second wiper rolls 14a and 14b.
- the coolant C accumulated on the surface is blown away from the rolled material S and the second wiper rolls 14a and 14b. Since the amount of the coolant C adhering to the surfaces of the second wiper rolls 14a and 14b is very small, it is not necessary to recover the air A containing the coolant C after being blown off.
- a blower device for supplying air to the entire width direction of the rolled material between the first wiper roll and the second wiper roll, and a device for sucking the supplied air In the present invention, by providing the upper and lower shielding plates 13a and 13b that prevent the scattered coolant C from reattaching, the coolant removal performance can be maintained and the equipment cost can be reduced. it can.
- the wiper device 5 can be made compact with a small number of parts, so that the initial cost and running cost can be reduced. Since the wiper device 5 is made compact, the distance from the rolling mill 1 to the winding device can be shortened, so that the yield can be improved and it is arranged on the exit side of the work rolls 6a, 6b or the work rolls 9a, 9b. Since the distance to the thickness gauge and the shape detector can be shortened, the rolling accuracy can be improved.
- the wiper device 23 includes a first wiper roll 21a, 21b, a pair of upper and lower shielding plates 13a, 13b, and a second pair of upper and lower shields from the upstream in the rolling direction. Parrollers 22a and 22b and air injection devices 15a and 15b are provided.
- the wiper tools 21a, 21b, 22a, 22b are thin-walled hollow and flat processed.
- the first wiper rolls 21a, 21b and the second wiper rolls 22a, 22b are arranged such that the upper and lower roll shafts cross each other in the plate width direction, and the first wiper rolls 21a, 21b.
- the upper and lower pairs of the second wiper rolls 22a and 22b are cross-arranged in the same direction at a predetermined cross angle.
- Fig. 11 the surface pressure of the wiper roll subjected to the crowning force is indicated by a solid line, and the surface pressure of the wiper roll having a cross force applied to the flat force is indicated by an alternate long and short dash line.
- the cross arrangement direction of the first wiper rolls 21a and 21b and the second wiper rolls 22a and 22b may be arranged in the opposite direction.
- the rolling direction and the rotation direction of each roll will be shifted by the cross angle, and the force that is likely to cause twisting of the rolled material S.
- Moment is applied to the upper surface side of the rolled material S in contact with the wiper roll 21a and the second wiper roll 22a, the lower surface side of the rolled material S in contact with the first wiper roll 21a and the second wiper roll 22b, and the upper and lower surfaces. Since the balance can be taken, the rolled material S can be conveyed more stably.
- the surface pressure is substantially constant in the plate width direction without depending on the plate width of the rolled material S.
- the coolant removal capability can also be formed uniformly in the plate width direction. Also pressure Since the shape of the rolled material s can be maintained, the occurrence of wavy flaws in the longitudinal direction of the rolled material S can be prevented.
- the wiper rolls 21a, 21b, 22a, 22b are independently supported by shaft end support members 16a, 16b, 17a, 17b as shown in FIG. 4, and a cross angle setting mechanism (that can set a plurality of cross angles) (The cross angle can be easily changed by supporting in (not shown).
- a cross angle setting mechanism that can set a plurality of cross angles
- the cross angle can be easily changed by supporting in (not shown).
- the cross angle is controlled to be large, and when the strip width is narrow, the cross angle is controlled to be small. Therefore, maintainability such as centering of each roll and roll recombination operation when the cross arrangement is changed can be improved.
- the first wiper rolls 12a, 12b When a non-metallic roll such as a non-woven roll is used for the first wiper rolls 12a, 12b, at least one of the Crowungkaye or the cross arrangement is applied to at least the second wiper rolls 14a, 14b. As a result, the same wiping effect can be obtained. Even when a crowning cage roll is used, as described above, one of the second wiper rolls 14a and 14b may be a crown carriage and the other may be a flat carriage.
- the force described for the tandem rolling mill 1 is applicable to a reverse rolling mill 24 as shown in FIG.
- the rolling mill 24 is provided with a coolant header 4 on both sides of the rolling stand 2, a wiper device 5 on both sides thereof, and a winding device 25 on both sides thereof. ing.
- the rolling direction changes for each pass, and the rolling material S is wound up by the winding device 25 on the input / output side in each pass. Therefore, the wiper device 5 also needs to be arranged on the entry / exit side.
- the wiper device 5 disposed on the entry side in each path direction of the rolled material S is used to prevent the backflow of the coolant C supplied on the entry side while holding the rolled material S in the vertical direction.
- the wiper device 5 arranged on the outlet side The same effect can be obtained.
- the work rolls 6a, 6b and work rolls 9a, 9b which are a pair of upper and lower sides for rolling the rolled material S, the rolled material S, the work rolls 6a, 6b, and the work roll
- a rolling mill 1 having a coolant header 4 for supplying a coolant C for cooling and lubricating the steel 9a and 9b and a wiper device 5 for removing the coolant C adhering to the rolled material S, the wiper device 5 From the upstream side in the rolling direction, the first wiper rolls 12a and 12b, which have a pair of hollow upper and lower forces wiping the rolled material S and applied a crowning force, Upper and lower shielding plates 13a and 13b for preventing adhesion, second upper and lower wiper rolls 14a and 14b, and a second wiper roll 14a and 14b.
- shaft end support members 16a, 16b and shaft end support members 17a, 17b for supporting the shaft ends of the first wiper rolls 12a, 12b and the second wiper rolls 14a, 14b, respectively, and shaft end support Equipped with a structural support 19 that supports the members 16a, 16b, 17a, and 17b so that they can move in the vertical direction, improving the maintainability of the wiper rolls 12a, 12b, 14a, 14b, such as centering and roll recombination
- the strength of the wiper device 5 can be reinforced.
- first wiper rolls 21a and 21b and the second wiper rolls 22a and 22b that have been subjected to flat processing are arranged with the upper and lower roll axes crossing each other with respect to the plate width direction and crossing in the same direction.
- the pressing force of the rolled material S in the plate width direction uniform.
- deformation can be prevented and uniform wiping can be performed in the plate width direction.
- first wiper rolls 21a, 21b and the second wiper rolls 22a, 22b are crossed in the opposite directions and arranged, whereby the rolled material S can be stably conveyed.
- the shaft end support members 16a and 17a are interchangeable at the shaft ends of the first wiper rolls 12a and 21a and the second wiper rolls 14a and 22a, and the shaft end support members 16b and 17b are interchangeable. Are interchangeable at the shaft ends of the first wiper rolls 12b and 21b and the second wiper rolls 14b and 22b. From this, when the recombination cycle of the wiper roll is different between the first wiper roll and the second wiper roll, the standby roll can be made into one set. In addition, maintainability can be improved even during normal times.
- the present invention can be applied to a rolling mill equipped with a wiper device.
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- Engineering & Computer Science (AREA)
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Abstract
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CN2006800116853A CN101155651B (zh) | 2005-04-12 | 2006-03-10 | 轧机及轧制方法 |
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JP2005114128A JP4751092B2 (ja) | 2005-04-12 | 2005-04-12 | 圧延機及び圧延方法 |
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JP (1) | JP4751092B2 (ja) |
KR (1) | KR100916170B1 (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010020343A1 (de) * | 2008-08-18 | 2010-02-25 | Sms Siemag Ag | Verfahren und vorrichtung zur kühlung und trocknung eines warmbandes oder eines blechs in einem walzwerk |
CN108856315A (zh) * | 2018-08-08 | 2018-11-23 | 浙江辛子精工机械股份有限公司 | 一种改进的冷轧钢管外表面刮油装置 |
NL1042559B1 (en) * | 2017-09-27 | 2019-04-03 | Wuppermann Staal Nederland B V | Passivation system comprising an expelling device, and such an expelling device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101823077B (zh) * | 2010-04-27 | 2012-07-18 | 中冶南方工程技术有限公司 | 逐级导流防溅挡板 |
KR101722644B1 (ko) * | 2016-05-18 | 2017-04-04 | 포스마텍 주식회사 | 비접촉식 압연유 제거장치 |
CN106001122B (zh) * | 2016-06-20 | 2018-05-22 | 王远志 | 一种轧钢装置 |
DE212019000107U1 (de) * | 2018-06-13 | 2020-02-20 | Novelis Inc. | Systeme zur Aufnahme von viskosen Materialien bei der Walzenverarbeitung |
RU2761304C1 (ru) | 2018-06-13 | 2021-12-07 | Новелис Инк. | Системы и способы удаления вязких материалов при обработке металлических изделий |
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KR100394407B1 (ko) * | 1998-10-26 | 2003-08-09 | 미츠비시 쥬고교 가부시키가이샤 | 액상물의 와이퍼 장치 |
TWI247633B (en) * | 2003-04-02 | 2006-01-21 | Jfe Steel Corp | Cross-rolling rolling machine and method of using same |
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2005
- 2005-04-12 JP JP2005114128A patent/JP4751092B2/ja active Active
-
2006
- 2006-03-10 WO PCT/JP2006/304758 patent/WO2006109380A1/ja active Application Filing
- 2006-03-10 KR KR1020077023336A patent/KR100916170B1/ko active IP Right Grant
- 2006-03-10 CN CN2006800116853A patent/CN101155651B/zh active Active
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JPH08117820A (ja) * | 1994-10-27 | 1996-05-14 | Nippon Carbon Eng Kk | 圧延金属板端部の残液処理方法および装置 |
JPH10180339A (ja) * | 1996-09-11 | 1998-07-07 | T Sendzimir Inc | ロール型ストリップ拭取り装置 |
JPH10146611A (ja) * | 1996-11-14 | 1998-06-02 | Nikko Kinzoku Kk | ワイパー装置 |
JP2004181506A (ja) * | 2002-12-05 | 2004-07-02 | Hitachi Ltd | ワイパ装置及びワイピング方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010020343A1 (de) * | 2008-08-18 | 2010-02-25 | Sms Siemag Ag | Verfahren und vorrichtung zur kühlung und trocknung eines warmbandes oder eines blechs in einem walzwerk |
US9358598B2 (en) | 2008-08-18 | 2016-06-07 | Sms Group Gmbh | Method and apparatus for cooling and drying a hot-rolled strip or a metal sheet in a rolling mill |
NL1042559B1 (en) * | 2017-09-27 | 2019-04-03 | Wuppermann Staal Nederland B V | Passivation system comprising an expelling device, and such an expelling device |
EP3461924A1 (en) * | 2017-09-27 | 2019-04-03 | Wuppermann Staal Nederland BV | Passivation system comprising an expelling device |
CN108856315A (zh) * | 2018-08-08 | 2018-11-23 | 浙江辛子精工机械股份有限公司 | 一种改进的冷轧钢管外表面刮油装置 |
Also Published As
Publication number | Publication date |
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CN101155651B (zh) | 2011-01-19 |
KR20070110934A (ko) | 2007-11-20 |
JP4751092B2 (ja) | 2011-08-17 |
JP2006289444A (ja) | 2006-10-26 |
CN101155651A (zh) | 2008-04-02 |
KR100916170B1 (ko) | 2009-09-08 |
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