WO2011122069A1 - Machine de laminage pour plaques métalliques et procédé de laminage - Google Patents

Machine de laminage pour plaques métalliques et procédé de laminage Download PDF

Info

Publication number
WO2011122069A1
WO2011122069A1 PCT/JP2011/050784 JP2011050784W WO2011122069A1 WO 2011122069 A1 WO2011122069 A1 WO 2011122069A1 JP 2011050784 W JP2011050784 W JP 2011050784W WO 2011122069 A1 WO2011122069 A1 WO 2011122069A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
roll
work roll
force
bending force
Prior art date
Application number
PCT/JP2011/050784
Other languages
English (en)
Japanese (ja)
Inventor
小川　茂
比護　剛志
久恒　貴史
Original Assignee
新日本製鐵株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新日本製鐵株式会社 filed Critical 新日本製鐵株式会社
Priority to KR1020127024997A priority Critical patent/KR101300236B1/ko
Priority to CN201180015453.6A priority patent/CN102821881B/zh
Priority to JP2011514965A priority patent/JP4772934B1/ja
Priority to EP11762310.8A priority patent/EP2554282B1/fr
Publication of WO2011122069A1 publication Critical patent/WO2011122069A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands

Definitions

  • the present invention relates to a rolling mill for metal sheets, and relates to a rolling mill having high responsiveness and capable of imparting a strong roll bending force.
  • the present invention relates to a rolling mill that is suitable for a thick plate rolling mill or a thin sheet hot rolling rough rolling mill and that can provide a large maximum opening between upper and lower work rolls and can impart a strong roll bending force.
  • the present invention also relates to a rolling method using the above rolling mill, which can provide a high response and a strong plate crown / shape control function.
  • the crown and shape of the rolled plate are important quality indicators, and many techniques related to plate crown and shape control have been disclosed.
  • a rolling mill that manufactures a thick product by multi-pass reverse rolling such as a thick plate rolling mill or a thin plate hot rolling rough rolling mill
  • the gap between the upper and lower work rolls (roll opening) It must be larger than the thickness of the rolled material. For this reason, restrictions on the rolling mill equipment design are imposed on the plate crown / shape control device.
  • Patent Document 1 in thick plate rolling in which a plurality of passes are rolled to a predetermined plate thickness, a work roll bending device is used as a shape control device, and the roll bending force is controlled based on the result of rolling in the previous pass.
  • a rolling method is disclosed.
  • the rolling mill type disclosed in Patent Document 1 is a four-high rolling mill, and the rolling mill type has a structure shown in FIG.
  • the rolling mill shown in FIG. 10 is obtained by arranging a decrease bending apparatus in the rolling mill of FIG. Both rolling mills have basically the same structure.
  • the upper work roll chock 3-1 is held by the arm portion that connects the upper reinforcement roll chock 4-1.
  • Increase bending apparatuses 6-1 and 6-2 of the upper work roll 1-1 are incorporated in this arm portion. By setting it as such a format, a big roll opening degree can be taken.
  • the increment bending apparatuses 6-3 and 6-4 of the lower work roll 1-2 are incorporated in a project block connected to the rolling mill housing 9.
  • the rolling roll chocks 4-1 and 4-2 hold the work roll chock 3-1 and 3-2 on both the upper and lower sides. There is also a machine.
  • the increment bending apparatus means a hydraulic apparatus that applies a force in the direction of increasing the roll opening degree to the work roll chock.
  • the increment bending apparatus is a general term for apparatuses including a hydraulic cylinder as an actuator.
  • the increment bending apparatus refers to a hydraulic cylinder that is an actuator thereof unless otherwise specified.
  • a force applied to the work roll by the increase bending apparatus is referred to as an increase bending force.
  • a hydraulic device that applies a force in the direction of decreasing the roll opening degree to the work roll chock is referred to as a decrease bending device, and a force applied to the work roll by this is referred to as a decrease bending force.
  • the decrease bending apparatus is a general term for apparatuses including a hydraulic cylinder as an actuator.
  • the decrease bending apparatus refers to a hydraulic cylinder that is an actuator thereof unless otherwise specified.
  • Patent Document 2 discloses a rolling mill in which work bending increase bending apparatuses 6-1 and 6-2 are incorporated in work roll chock 3-1 and 3-2 as shown in FIG.
  • Patent Document 3 discloses a roll-cross type rolling mill. Also in this rolling mill, as shown in FIG. 12, the increment bending apparatuses 6-1 and 6-2 are incorporated in the work roll chock 3-1 and 3-2.
  • Patent Document 4 discloses a rolling mill having a work roll shift function as shown in FIG.
  • the increment bending apparatuses 6-1 and 6-2 are incorporated in project blocks 5-1 and 5-2 integrated with the rolling mill housing.
  • a plurality of hydraulic cylinders of the increment bending apparatus are arranged in the roll axis direction, and are devised so that an uneven load is not applied when the work roll is shifted.
  • a thick steel plate rolling machine does not have a decrease bending apparatus as shown in FIG. (See Patent Documents 1, 2, 3, and 4)
  • the rolling mill according to the present invention is premised on having a decrease bending apparatus in order to provide a powerful plate crown / shape control function. Therefore, FIG. 10, FIG. 11, FIG. 12, and FIG. 13 show cases where a decrease bending apparatus is provided.
  • a typical thick plate mill as disclosed in Patent Document 1 (the rolling mill shown in FIGS. 10 and 11) is designed with the highest priority being given to a large roll opening. That is, the arm portion connected to the upper reinforcing roll chock 4-1 whose vertical position is set and controlled by the reduction device 11 is configured to hold the upper work roll chock 3-1.
  • the increment bending apparatuses 6-1 and 6-2 are incorporated into the arm portion, which is structurally limited in size, it is difficult to incorporate a large capacity hydraulic cylinder. For this reason, a strong roll bending force cannot be imparted.
  • a work roll bending apparatus having a capacity exceeding 200 tf / chock has been put into practical use even in a hot strip mill finish rolling mill having a work roll diameter of about 800 mm.
  • a work roll bending apparatus having a work roll diameter of about 200 tf / check has been put to practical use even in a thick plate mill having a work roll diameter of about 1000 mm. From the contrast of the roll diameter, it is clear that a higher capacity roll bending force is required.
  • the roll deflection as an index of the roll bending effect is inversely proportional to the roll secondary moment when the applied bending moment is the same. Therefore, the roll bending effect of the thick plate mill with a work roll diameter of 1000 mm is inferior by about 60% compared to the hot strip mill finish rolling mill with a work roll diameter of 800 mm.
  • the rolling mills disclosed in Patent Documents 2 and 4 are incorporated in project blocks 5-1 and 5-2 in which the increment bending apparatuses 6-1 and 6-2 are connected to the rolling mill housing 9. Yes. For this reason, it is not necessary to attach or detach the hydraulic piping of the increment bending apparatus every time the roll is reassembled. Therefore, this rolling mill can be a roll responsive apparatus with high responsiveness. Therefore, it is frequently used in hot strip mill finish rolling mills. However, in this rolling mill, it is the contact surface between the work roll chock 3-1 and the project block 5-2 that supports the rolling direction force such as offset component force acting on the upper work roll 1-1.
  • the problem to be solved by the present invention is to provide a rolling mill which can take a large opening between the upper and lower work rolls and can provide a high response and a strong roll bending force.
  • the present inventors have intensively studied, and as a result, shifted the project block protruding inward from the housing to the lower side with respect to the pass line, and moved up and down with respect to the pass line. It has been found that the installation can be made asymmetrical to enable the following.
  • An upper and lower increase bending apparatus can be incorporated in the project block. Thereby, it is possible to provide a powerful bending device with a large capacity and a large stroke.
  • a metal sheet material rolling mill having a pair of upper and lower work rolls and a pair of upper and lower reinforcing rolls that respectively support the work rolls, and a hydraulic cylinder that applies an incremental bending force to the upper and lower work rolls, respectively, Rolling direction force is applied to the lower work roll body, which is provided on the project block projecting inward, and is applied to the upper work roll body by the contact surface between the project block and the lower work roll chock.
  • the metal plate rolling machine wherein the force is supported by a contact surface between a rolling mill housing window and an upper work roll chock located above the project block.
  • the increment bending apparatus is a general term for apparatuses including a hydraulic cylinder as an actuator.
  • the increment bending apparatus refers to a hydraulic cylinder that is an actuator thereof unless otherwise specified.
  • the decrease bending apparatus is a general term for an apparatus including a hydraulic cylinder which is an actuator thereof.
  • the decrease bending apparatus refers to a hydraulic cylinder that is an actuator thereof unless otherwise specified.
  • a hydraulic cylinder that applies a decrease bending force to the lower work roll is attached to the lower reinforcement roll chock or the second project block (for example, 5-3 and 5-4 in FIG. 4) located below the project block.
  • the increase bending force is changed to the work roll chock as a resultant force while changing the increase bending force while continuing the control of maintaining the decrease bending force during the predetermined rolling.
  • make it work During rolling, performing the rolling so as to maintain the work roll bending force during the predetermined rolling, Thereafter, at the end of rolling, the increment bending force is changed, and the roll bending force corresponding to the roll balance force is applied to the work roll chock as a resultant force with the decrease bending force, and the rolling of the metal plate material is finished in this state. Thereafter, the decrease bending force and the increase bending force are decreased so as to maintain the roll balance force as the resultant force.
  • This step also maintains the decrease bending force during the specified rolling, and the increase bending force is set so that the resultant balance of the decrease bending force and the increase bending force becomes the roll balance force. Can be omitted if it works. It is the rolling method of the metal plate material characterized by the above.
  • the rolling mill according to the present invention applies a rolling direction force applied to the body portion of the upper work roll 1-1 to a housing window above the upper work roll chock 3-1 and the project block 5-2. Is supported by the contact surface. Therefore, a large roll opening degree can be obtained and a strong roll bending force can be obtained. And it is not necessary to attach or detach the hydraulic piping of the increment bending apparatus every time the work roll is reassembled. For this purpose, it is possible to connect to each hydraulic control valve via fixed hydraulic piping to the incremental bending device, and it is possible to adopt a servo valve for high response hydraulic control, highly responsive incremental bending It can be a device.
  • the rolling method according to the present invention compensates for this by a highly responsive incremental bending apparatus even when a declining bending apparatus having low responsiveness must be provided.
  • a crown / shape control function can be added. Therefore, it is possible to build a good plate crown and shape against disturbances that change during rolling, such as the rolled material entry side thickness and the rolled material temperature, which can greatly improve product quality and yield. .
  • FIG. 1 It is a figure which shows another example of the operation flow of the rolling method which concerns on this invention. It is a figure which shows time-sequential changes, such as roll bending force accompanying the operation flow of FIG.
  • FIG. 1 is a side view showing an example of the structure of a rolling mill according to the present invention.
  • a rolling mill according to the present invention includes a pair of upper and lower work rolls 1-1 and 1-2 and a pair of upper and lower reinforcing rolls 2-1 and 2-2 for supporting them. It is.
  • the rolling mill according to the present invention provides the upper bending machine 6-1 and 6-2 that applies the increase bending force to the upper work roll 1-1, and the increase bending force to the lower work roll 1-2.
  • This is a rolling mill in which lower incremental bending apparatuses 6-3 and 6-4 to be loaded are arranged in project blocks 5-1 and 5-2 protruding inside the housing 9.
  • the rolling mill according to the present invention performs a fundamental review and solves the problems of the conventional rolling mill shown in FIG. That is, the position of the project blocks 5-1 and 5-2 and the shape of the upper work roll chock 3-1 were changed from the viewpoint of structural design of the rolling mill, particularly from the viewpoint of increasing the roll opening.
  • the conventional rolling mill shown in FIG. 13 cannot take a large roll opening.
  • the project blocks 5-1 and 5-2 are arranged so as to be almost vertically symmetrical with respect to a position (pass line) through which the material to be rolled 10 passes.
  • the rolling direction force such as offset component force acting on the upper work roll 1-1 by the contact surface where the upper work roll chock 3-1 and the project block 5-2 are in contact, that is, the material to be rolled 10 and the upper reinforcement.
  • the structure supports the rolling direction force applied to the body of the upper work roll 1-1 from the roll 2-1 or the like.
  • the rolling mill according to the present invention solves the above problems.
  • the rolling mill according to the present invention arranges project blocks 5-1 and 5-2 projecting inward from the housing 9 at positions shifted downward with respect to the pass line. That is, unlike the conventional rolling mill shown in FIG. 13, the project blocks 5-1 and 5-2 are arranged so as to be vertically asymmetric with respect to the pass line. Further, the upper work roll chock 3-1 does not contact the project block 5-2 and support the rolling force, but contacts the housing window to support the rolling force.
  • a rolling mill in which upper and lower increase bending apparatuses are arranged in a project block is well known.
  • the rolling mill according to the present invention performs a fundamental review of the positions of the project blocks 5-1 and 5-2 and the shape of the upper work roll chock 3-1, Since the applied rolling direction force is supported by the contact surface between the upper work roll chock 3-1 and the housing window 12 above the project block 5-2, a large roll opening can be obtained.
  • the upper bending apparatus 6-1 and 6-2 for applying the increase bending force to the upper work roll 1-1, and the increase bending force to the lower work roll 1-2 are examples of the rolling mill according to the present invention.
  • the lower increase bending apparatuses 6-3 and 6-4 to be loaded are arranged in the project blocks 5-1 and 5-2 protruding inside the housing 9. Therefore, it is not necessary to attach or detach the hydraulic piping of the increment bending apparatus every time the work rolls are reassembled, and an increase bending responsive apparatus can be obtained. This is because each hydraulic control valve can be connected via a fixed hydraulic pipe, and a servo valve for high response hydraulic control can be employed.
  • the rolling direction force applied to the body portion of the lower work roll 1-2 is supported by the contact surface between the lower work roll chock 3-2 and the project block 5-2.
  • the rolling mill according to the present invention shown in FIG. 1 increases the height of the portion sandwiched between the project blocks 5-1 and 5-2 of the lower work roll chock 3-2.
  • the roll opening is adjusted mainly by moving the upper work roll chock up and down, the amount of movement of the lower work roll chock up and down is small. Therefore, the posture of the lower work roll does not become unstable as the roll opening degree increases.
  • FIG. 2 is a sectional plan view showing an arrangement example of the upper and lower increase bending apparatuses. That is, it is a cross-sectional view of the pass line height of the project blocks 5-1 and 5-2.
  • the upper and lower increase bending apparatuses are shifted from each other on the sectional plan view of the project block.
  • the upper increment bending devices 6-1 and 6-2 and the lower increment bending devices 6-3 and 6-4 are shifted in the axial direction of the work roll 1-2. It is desirable to deploy in a relationship. In this way, the upper and lower increase bending apparatuses do not interfere with each other.
  • each of the lower increase bending apparatuses 6-3 and 6-4 has two hydraulic cylinders on the input side and the output side.
  • the same effect can be obtained by arranging one hydraulic cylinder at different positions in the axial direction of the work roll 1-2 so as not to interfere with the upper increment bending apparatuses 6-1 and 6-2.
  • FIG. 3 is also a cross-sectional plan view showing an arrangement example of the upper and lower increase bending apparatuses. That is, it is a sectional view of the pass line height of the project blocks 5-1 and 5-2.
  • the upper increment bending apparatuses 6-1 and 6-2 and the lower increase bending apparatuses 6-3 and 6-4 may be in a positional relationship shifted in the rolling direction. Even in such an arrangement, the upper and lower increase bending apparatuses do not interfere with each other. It is possible to increase the stroke of the upper increment bending devices 6-1 and 6-2, and to take a larger roll opening.
  • a large-capacity / large-stroke upper increment bending apparatus is provided on project blocks 5-1 and 5-2 projecting inward from the housing 9 of the rolling mill. 6-1, 6-2 can be deployed.
  • the upper reinforcing roll chock 4-1 does not include an arm portion like the rolling mill shown in FIGS.
  • the large capacity upper decrease bending apparatuses 7-1 and 7-2 can be provided at positions that do not interfere with the bearings of the upper reinforcing roll of the upper reinforcing roll chock 4-1. As a result, it is possible to apply a large decrease bending force to the upper work roll 1-1.
  • each of the increment bending apparatuses 6-1 to 6-4 can be connected to each hydraulic control valve via a fixed hydraulic pipe, and employs a servo valve for high response hydraulic control. be able to. Therefore, it is possible to provide an incremental bending apparatus with high responsiveness.
  • FIG. 4 is a side view showing another example of a rolling mill according to the present invention.
  • the upper roll system has the same configuration as that of FIG. 1, but the lower roll system has a different configuration.
  • lower decrease bending apparatuses 7-3 and 7-4 that apply a decrease bending force to the lower work roll are provided in the lower reinforcing roll chock 4-2.
  • the lower decrease bending apparatuses 7-3 and 7-4 are arranged in dedicated project blocks 5-3 and 5-4 located below the project blocks 5-1 and 5-2. Has been deployed.
  • the fluctuation of the hydraulic pressure may be absorbed or alleviated because of the flexible structure. Therefore, when the upper decrease bending devices 7-1 and 7-2 are provided in the upper reinforcing roll chock 4-1, the response of the roll bending device is less than when the fixed piping and the servo valve are used. It must be lowered.
  • the decrease bending force cannot be applied during idling when no rolling load is applied. Therefore, when applying the decrease bending force, it is necessary to quickly set the decrease bending force from the idle state in which the roll balance is achieved to the start of rolling, and to quickly return to the roll balance state at the end of rolling. Therefore, when the roll bending force is changed by the control of the decrease bending device having poor responsiveness, there is a possibility that the predetermined defect bending force is not applied to the leading end of the rolled material and the defective shape portion becomes long. .
  • the rolling method according to the present invention solves the above problems. That is, it is a rolling method using the rolling mill according to the present invention in which the upper decrease bending apparatuses 7-1 and 7-2 are arranged in the upper reinforcing roll chock 4-1, and solves the above-described problems that may occur in the rolling mill. It is a rolling method.
  • the response of the decrease bending apparatus may be deteriorated.
  • the upper increment bending apparatuses 6-1 and 6-2 are arranged in the project blocks 5-1 and 5-2 protruding in the inner direction from the housing 9, Large increase and large stroke upper increment bending apparatuses 6-1 and 6-2 can be used.
  • a change in roll bending force at the start of rolling and at the end of rolling is performed with a highly responsive increase. This is performed by using a bending apparatus and compensates for the response of the decrease bending apparatus.
  • FIG. 5 is a diagram showing an example of an operation flow of the rolling method according to the present invention. That is, it is a diagram showing an operation flow of an increase bending apparatus having a high response and a decrease bending apparatus having a slightly lower response than the above.
  • FIG. 6 shows time-series changes such as roll bending force for one rolled material in this rolling method.
  • FIG. 6 shows the rolling load, the output of the increment bending apparatus, the output of the decrease bending apparatus, and the time series change of the work roll bending force, which is the resultant force, from the top.
  • FIGS First start rolling before, then rolled settings F R of the rolling work roll bending force corresponding to operation and output to the rolling.
  • F R is a negative value, that is, those which are calculated as decrease-bending force.
  • the increase bending force (the force in the increase direction (the direction in which the roll is opened)) is a positive value
  • the decrease bending force (the force in the decrease direction (the direction in which the upper and lower work rolls are pressed)) is negative. Value.
  • both the increase bending force and the decrease bending force are applied, and the roll bending force on the increase side corresponding to the roll balance force (F B ) is applied to the work roll chock as a resultant force. That is, at idle before rolling, the increment bending device output is I B (> 0), the decrease bending device output is D B ( ⁇ 0), and I B + D B is the roll balance force F B (> 0).
  • Roll balancing force F B is rolls as a work roll and a driven which are driven by an electric motor in the idling state is determined as a force that does not slip. This time D B may be set at a level of minimum hydraulic actuator decrease-bending device is not Shimawa away from the work roll chock.
  • the work in a given rolling roll bending force F R is to act on the work roll chock as resultant force. That is, when the start of rolling (b point on the time axis), is changed to I R ink bending device output from the I S. While such decrease-lease low response by the bending device output D S, the control of the quick-bending apparatus responsive, the work roll bending force of the resultant force from the roll balancing force F B (> 0) It is possible to quickly switch to the work roll bending force F R ( ⁇ 0) during rolling.
  • the rolling start time (b) refers to the time point when the rolling is started, and the detection thereof, for example, the load detected by the load cell for measuring the rolling load of the rolling mill exceeds 30% of the predicted rolling load. You can decide by the method of time.
  • a roll bending force corresponding to the roll balance force (F B ) is applied to the work roll chock as a resultant force, and the rolling is ended. That is, when completion of rolling (c point on the time axis), decrease-bending device output varies the fast-bending device output response from the I R in I S remain D S. By doing in this way, the work roll bending force as a resultant force can be quickly switched from the work roll bending force during rolling (F R ( ⁇ 0)) to the roll balance force (F B (> 0)).
  • the end of rolling (c) refers to the end of rolling.
  • the load detected by the load cell for measuring the rolling load of the rolling mill is less than 50% of the actual rolling load average value. What is necessary is just to decide by the method of timing.
  • the roll bending force is changed at the start of rolling and at the end of rolling using an incremental bending apparatus with high responsiveness. For this reason, even if it is necessary to deploy a decrease bending device having a relatively low response, a highly responsive increase bending device compensates for this.
  • a shape control function can be provided. Furthermore, even when the rolling load changes due to various factors (disturbances) during rolling, it is possible to quickly control to maintain the optimal work roll bending force with a highly responsive incremental bending device. It is.
  • the control for changing the work roll bending force during rolling may be performed according to, for example, the measured value of the rolling load. That is, according to the rolling method of the present invention, it is possible to build a good plate crown and shape against disturbances that vary during rolling, such as the rolled material entry side plate thickness and the rolled material temperature. Thereby, product quality and yield can be greatly improved.
  • FIG. 7 is a diagram showing time-series changes in roll bending force and the like when the response of the decrease bending apparatus is low (especially when the reaction force is reduced and the pressure drops when the reaction force is released). Similar to FIG. 6, changes in time series such as a roll bending force accompanying a rolling operation on a single rolled material are shown in accordance with the operation flow of the increment bending apparatus and the decrease bending apparatus shown in FIG. 5. That is, an example in which the response speed of the decrease bending apparatus is slower than in the case of FIGS.
  • FIG. 8 is a diagram showing an operation flow in the case of having an increase bending device with high responsiveness and a decrease bending device with low responsiveness.
  • the decrease bending force or the hydraulic pressure in the hydraulic piping connected to the apparatus is constantly measured by a load cell installed in the decrease bending apparatus, and the incremental bending apparatus is controlled based on the measured value.
  • the output of the increase-bending device, decrease-bending force or decrease-lease Control according to the hydraulic pressure of the bending equipment.
  • the other control is the same as the rolling method shown in FIG.
  • the increase bending device compensates for fluctuations in the output of the decrease bending device, and the work roll bending force is optimized to achieve high-response control. Can be realized.
  • the present invention can be used for rolling a steel sheet, particularly a reverse rolling mill that requires a large opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

La présente invention se rapporte à une machine de laminage telle que les ouvertures situées entre des rouleaux de travail supérieur et inférieur peuvent être réglées pour être grandes, et qu'une force puissance et très réactive peut être produite. Dans ce but, la machine de laminage, qui est destinée à être utilisée pour des plaques métalliques, comprend une paire de rouleaux de travail se composant d'un rouleau de travail supérieur et d'un rouleau de travail inférieur ; et une paire de rouleaux de renforcement se composant d'un rouleau de renforcement supérieur et d'un rouleau de renforcement inférieur qui soutiennent respectivement le rouleau de travail supérieur et le rouleau de travail inférieur. La machine de laminage destinée à être utilisée pour des plaques métalliques se caractérise en ce que des cylindres hydrauliques qui exercent respectivement des forces de flexion croissantes sur les rouleaux de travail supérieur et inférieur sont disposés sur des blocs saillants qui font saillie dans une enveloppe de machine de laminage, en ce que la force dans la direction de laminage exercée sur la section tronc du rouleau de travail inférieur est supportée par les surfaces de contact entre les blocs saillants et une cale de rouleau de travail inférieur, et en ce que la force dans la direction de laminage exercée sur la section tronc du rouleau de travail supérieur est supportée par les surfaces de contact entre une cale de rouleau de travail supérieur et une fenêtre de machine de laminage située au-dessus des blocs saillants.
PCT/JP2011/050784 2010-03-31 2011-01-12 Machine de laminage pour plaques métalliques et procédé de laminage WO2011122069A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020127024997A KR101300236B1 (ko) 2010-03-31 2011-01-12 금속 판재의 압연기 및 압연 방법
CN201180015453.6A CN102821881B (zh) 2010-03-31 2011-01-12 金属板材的轧机及轧制方法
JP2011514965A JP4772934B1 (ja) 2010-03-31 2011-01-12 金属板材の圧延機および圧延方法
EP11762310.8A EP2554282B1 (fr) 2010-03-31 2011-01-12 Machine de laminage pour plaques métalliques et procédé de laminage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-084053 2010-03-31
JP2010084053 2010-03-31

Publications (1)

Publication Number Publication Date
WO2011122069A1 true WO2011122069A1 (fr) 2011-10-06

Family

ID=44711822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/050784 WO2011122069A1 (fr) 2010-03-31 2011-01-12 Machine de laminage pour plaques métalliques et procédé de laminage

Country Status (5)

Country Link
EP (1) EP2554282B1 (fr)
KR (1) KR101300236B1 (fr)
CN (1) CN102821881B (fr)
TW (1) TWI430854B (fr)
WO (1) WO2011122069A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012128019A1 (fr) * 2011-03-24 2012-09-27 新日本製鐵株式会社 Laminoir et procédé de laminage pour matériau en feuille métallique
JP2012200763A (ja) * 2011-03-25 2012-10-22 Nippon Steel Corp 金属板材のタンデム圧延設備及び熱間圧延方法
WO2021079498A1 (fr) * 2019-10-25 2021-04-29 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ 株式会社 Laminoir

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923564B (zh) * 2014-03-21 2017-02-22 宝山钢铁股份有限公司 可避免工作辊窜动过程中轧辊脱出误报警的方法
JP6992032B2 (ja) * 2019-10-25 2022-01-13 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 圧延機

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942106A (ja) * 1982-09-01 1984-03-08 Hitachi Ltd 圧延機
JPS62142403U (fr) * 1986-02-28 1987-09-08
JPS62220205A (ja) 1986-03-20 1987-09-28 Hitachi Ltd ロールシフト式圧延機
JPS63199006A (ja) * 1987-02-12 1988-08-17 Nippon Steel Corp 圧延機のワークロールベンディング方法
JPH02280910A (ja) * 1989-04-20 1990-11-16 Kawasaki Steel Corp 圧延機
JPH0452014A (ja) 1990-06-15 1992-02-20 Hitachi Ltd 圧延機
JPH0687011A (ja) 1992-09-09 1994-03-29 Kawasaki Steel Corp 厚板の圧延方法
JPH06198307A (ja) 1992-12-28 1994-07-19 Hitachi Ltd 圧延方法及び多段圧延機
JPH08215730A (ja) * 1995-02-21 1996-08-27 Nippon Steel Corp 板圧延機ロールベンディング装置及び板圧延方法
JPH11267728A (ja) * 1998-03-24 1999-10-05 Kawasaki Steel Corp 板クラウン制御方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864955A (en) * 1973-12-04 1975-02-11 Blaw Knox Foundry Mill Machine Rolling mill stand
DE3601239A1 (de) * 1986-01-17 1987-07-23 Schloemann Siemag Ag Biegevorrichtung fuer die axial verschiebbaren arbeitswalzen eines vierwalzen-walzgeruestes
DE3628733A1 (de) * 1986-08-23 1988-02-25 Schloemann Siemag Ag Vorrichtung zum axialen anstellen der walzen von walzgeruesten zur herstellung von profilstahl

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942106A (ja) * 1982-09-01 1984-03-08 Hitachi Ltd 圧延機
JPS62142403U (fr) * 1986-02-28 1987-09-08
JPS62220205A (ja) 1986-03-20 1987-09-28 Hitachi Ltd ロールシフト式圧延機
JPS63199006A (ja) * 1987-02-12 1988-08-17 Nippon Steel Corp 圧延機のワークロールベンディング方法
JPH02280910A (ja) * 1989-04-20 1990-11-16 Kawasaki Steel Corp 圧延機
JPH0452014A (ja) 1990-06-15 1992-02-20 Hitachi Ltd 圧延機
JPH0687011A (ja) 1992-09-09 1994-03-29 Kawasaki Steel Corp 厚板の圧延方法
JPH06198307A (ja) 1992-12-28 1994-07-19 Hitachi Ltd 圧延方法及び多段圧延機
JPH08215730A (ja) * 1995-02-21 1996-08-27 Nippon Steel Corp 板圧延機ロールベンディング装置及び板圧延方法
JPH11267728A (ja) * 1998-03-24 1999-10-05 Kawasaki Steel Corp 板クラウン制御方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2554282A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012128019A1 (fr) * 2011-03-24 2012-09-27 新日本製鐵株式会社 Laminoir et procédé de laminage pour matériau en feuille métallique
JP5059250B1 (ja) * 2011-03-24 2012-10-24 新日本製鐵株式会社 金属板材の圧延機および圧延方法
JP2012200763A (ja) * 2011-03-25 2012-10-22 Nippon Steel Corp 金属板材のタンデム圧延設備及び熱間圧延方法
WO2021079498A1 (fr) * 2019-10-25 2021-04-29 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ 株式会社 Laminoir
JPWO2021079498A1 (fr) * 2019-10-25 2021-04-29
JP7100416B2 (ja) 2019-10-25 2022-07-13 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 圧延機

Also Published As

Publication number Publication date
KR101300236B1 (ko) 2013-08-26
CN102821881B (zh) 2014-08-13
KR20120120476A (ko) 2012-11-01
TWI430854B (zh) 2014-03-21
EP2554282A4 (fr) 2013-12-04
EP2554282B1 (fr) 2015-03-25
CN102821881A (zh) 2012-12-12
TW201143922A (en) 2011-12-16
EP2554282A1 (fr) 2013-02-06

Similar Documents

Publication Publication Date Title
WO2011122069A1 (fr) Machine de laminage pour plaques métalliques et procédé de laminage
WO2011122070A1 (fr) Laminage d'une bande de métal
JP5059250B1 (ja) 金属板材の圧延機および圧延方法
JP5640769B2 (ja) 金属板材の圧延機および圧延方法
JP4687356B2 (ja) 金属材の圧延機及び圧延方法
JP4742857B2 (ja) 金属材の圧延機及び圧延方法
JP5712620B2 (ja) 金属板材の圧延機
JP5673279B2 (ja) 金属板材の圧延機および圧延方法
JP5533754B2 (ja) 金属板材のタンデム圧延設備及び熱間圧延方法
JP4772934B1 (ja) 金属板材の圧延機および圧延方法
JP5381966B2 (ja) 金属材の圧延方法
JP5527238B2 (ja) 金属板材の厚板圧延機
CN101961729A (zh) 轧机和具有这种轧机的串列式轧机
JP4763100B1 (ja) 金属板材の圧延方法
JP5691792B2 (ja) 金属板の圧延方法及び圧延機
JP2006334608A (ja) 板圧延機および圧延方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180015453.6

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2011514965

Country of ref document: JP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11762310

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20127024997

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 8320/DELNP/2012

Country of ref document: IN

Ref document number: 2011762310

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1201004937

Country of ref document: TH

NENP Non-entry into the national phase

Ref country code: DE