CN107537862B - Method and device for controlling movement of pass and pass-specific working rolls of steckel mill - Google Patents
Method and device for controlling movement of pass and pass-specific working rolls of steckel mill Download PDFInfo
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Abstract
The invention relates to a method for controlling the movement of pass and pass-specific working rolls of a steckel mill. The control method comprises the following steps: acquiring the work roll experience channeling amount of each pass corresponding to the type of the current plate blank from a preset work roll channeling amount database; determining the empirical play amount of the working roll of the current pass according to the empirical play amount of the working roll of each pass; adjusting the position of the working roll according to the empirical play amount of the working roll of the current pass, wherein the method comprises the following steps: driving the working roll to move in the direction of the axis of the working roll before rolling the plate blank in the current pass; and when the moving displacement of the working roll reaches the empirical work roll shifting amount of the current pass, controlling the working roll to stop moving. The invention can automatically control the movement of the working roll in each pass, thereby improving the product quality, ensuring the surface quality of the product, improving the roll bending efficiency of the working roll and reducing the excessive abrasion of the working roll.
Description
Technical Field
The invention belongs to the technical field of steel rolling, and particularly relates to a method and a device for controlling the movement of pass and pass-specific working rolls of a steckel mill.
Background
Hot rolling refers to rolling steel above the crystallization temperature of the steel. Because the hot rolling energy consumption is lower, the metal plasticity is high, and the processing technology performance of the metal and the alloy is improved, the hot rolling is widely applied in the steel material production.
As shown in fig. 1, the conventional steckel mill 10 has two opposite working rolls 11, a steel coil 12 passes between the two working rolls 11, and the two working rolls 11 perform multi-pass back and forth rolling on the slab of the steel coil 12 to roll the slab of the steel coil into a slab with a desired thickness. In order to ensure that the surface condition of the rolled plate blank can meet the standard, the position of the working roll 11 is adjusted after one steel coil is rolled at present. However, it is found that the prior steckel mill 10 can adjust the play of the working rolls 11 along the axis only after rolling one steel coil, and after rolling one steel coil, the surface of the working roll in the unit size of the width direction of the strip steel is seriously worn, and then rolling the next steel coil easily generates edge marks, which greatly affects the surface condition of the rolled plate blank and generates defective products.
Disclosure of Invention
The invention provides a method and a device for controlling the movement of working rolls of pass and pass of a steckel mill, which aim to solve the problems that the surface of the working rolls is excessively abraded and the surface quality of a rolled plate blank is poor because the steckel mill can only set the movement amount between a steel coil and a steel coil.
In order to solve the technical problems, the invention adopts a technical scheme that: a method for controlling the movement of working rolls of a steckel mill pass and a pass-specific working roll comprises the following steps:
acquiring the work roll experience channeling amount of each pass corresponding to the type of the current plate blank from a preset work roll channeling amount database;
determining the empirical play amount of the working roll of the current pass according to the empirical play amount of the working roll of each pass;
adjusting the position of the working roll according to the empirical play amount of the working roll of the current pass, wherein the method comprises the following steps:
driving the working roll to move in the direction of the axis of the working roll before rolling the plate blank in the current pass;
and when the moving displacement of the working roll reaches the empirical work roll shifting amount of the current pass, controlling the working roll to stop moving.
Specifically, the method for controlling the movement of the working rolls of the steckel mill pass and the pass-specific working rolls further comprises the following steps:
monitoring the surface conditions of various types of plate blanks corresponding to the various types of plate blanks after the steckel mill rolls the various types of plate blanks in each pass;
determining the predicted running amount of the working roll of each pass of the corresponding variety of plate blanks according to the surface conditions of the corresponding variety of plate blanks;
adjusting the position of the working roll according to the predicted play amount of the working roll of each pass;
determining whether various types of plate blanks are normally rolled or not after the positions of the working rolls are adjusted according to the predicted play amount of the working rolls of each pass on the steckel mill;
if the various plate blanks are normally rolled, recording the working roll play amount of each pass of the normally rolled plate blanks on the steckel mill, and forming a working roll play amount database of the various plate blanks;
the working roll play amount database comprises slab variety information, and the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to slabs.
Further, the method for controlling the movement of the working rolls of the steckel mill pass and the pass-specific working rolls further comprises the following steps:
recording the work roll shifting amount of each pass of the normally rolled plate blank on the steckel mill, and then judging whether the number of statistical data corresponding to the plate blank variety in the work roll shifting amount database is greater than a preset number threshold value or not;
and if the number of the statistical data is equal to the preset number threshold, deleting the statistical data with the longest distance from the current time.
A control device for the movement of working rolls of a steckel mill pass and a pass-specific working roll comprises:
the human-computer interaction unit is used for inputting slab variety information of a slab to be rolled, wherein the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to the slab;
the working roll experience play amount acquisition unit is used for acquiring the working roll experience play amount of each pass correspondingly matched with the slab variety information of the slab to be rolled, which is input by the man-machine interaction unit, from a preset working roll play amount database;
the working roll movement control unit is used for controlling the working roll to move in the direction of the axis of the working roll according to the empirical shifting quantity of the working roll in the corresponding pass of the plate blank to be rolled;
the working roll displacement monitoring unit is used for monitoring the displacement of the working roll;
the working roll displacement monitoring unit is connected with the working roll movement control unit, the working roll displacement monitoring unit feeds back the displacement of the working roll to the working roll movement control unit, the working roll movement control unit compares the working roll movement displacement with the working roll experience play of the current pass, and the working roll is controlled to stop moving when the working roll movement displacement reaches the working roll experience play of the current pass.
Further, a control device for the movement of the working rolls of the steckel mill pass and the pass-specific working rolls further comprises:
the steckel mill monitoring unit is used for determining whether the slabs of various types are normally rolled on the steckel mill;
the working roll play amount database generating unit is used for recording the working roll play amount of each pass of the normally rolled plate blanks on the steckel mill when the plate blanks of all kinds are normally rolled to form a working roll play amount database of all kinds of plate blanks;
the working roll play amount database comprises slab variety information, and the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to slabs.
Further, a control device for the movement of the working rolls of the steckel mill pass and the pass-specific working rolls further comprises:
a database update unit to: recording the work roll shifting amount of each pass of the normally rolled plate blank on the steckel mill, and then judging whether the number of statistical data corresponding to the plate blank variety in the work roll shifting amount database is greater than a preset number threshold value or not; and deleting the statistical data with the longest distance from the current time when the number of the statistical data is equal to the preset number threshold.
Further, the control device for the movement of the working rolls of the steckel mill pass and the pass is characterized by further comprising a working roll driving unit, wherein the working roll movement control unit is connected with the working roll driving unit, and the working roll movement control unit controls the working roll driving unit to drive the working rolls to move in the axis direction of the working rolls.
Specifically, the working roll drive unit includes interconnect's hydraulic servo valve and pneumatic cylinder, the hydraulic servo valve is connected with working roll mobile control unit, the piston rod of pneumatic cylinder with the working roll is connected, working roll mobile control unit sends signal for the hydraulic servo valve, the piston rod of hydraulic servo valve action drive pneumatic cylinder removes, the piston rod of pneumatic cylinder drives the working roll and removes along its self axis direction.
Preferably, the work roll displacement monitoring unit is a position sensor, and the position sensor is used for detecting whether a piston rod of the hydraulic cylinder moves to a position corresponding to the work roll experience play amount of a pass corresponding to a plate blank to be rolled.
Further, a control device for the movement of the working rolls of the steckel mill pass and the pass-specific working rolls further comprises:
and the display unit is used for displaying the slab variety information of the slab to be rolled, the empirical play amount of the working roll of each pass of the slab to be rolled and the moved displacement amount of the working roll of the current pass.
The scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined are also intended to be encompassed. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: and adjusting to form a working roll play amount database of each type of plate blank through a long-term test. The experimental run-out amount of the working roll corresponding to each pass of the plate blank is obtained through the working roll run-out amount database of each variety of plate blanks, and the position of the working roll is adjusted once before each pass of rolling according to the experimental run-out amount of the working roll corresponding to each pass of the plate blank, so that the abrasion amount of the plate blank on the same position of the working roll is greatly reduced, and the abrasion of the plate blank on the same position of the working roll is also reduced. Therefore, the invention can automatically control the movement of the working roll in each pass, thereby improving the product quality, ensuring the surface quality of the product, improving the roll bending efficiency of the working roll and reducing the excessive abrasion of the working roll.
Drawings
FIG. 1 is a schematic view of a prior art steckel mill;
FIG. 2 is a schematic structural diagram of a control device for controlling the movement of pass and pass-specific work rolls of a steckel mill;
wherein: 1. a human-computer interaction unit; 2. a working roll play amount database generation unit; 3. a work roll experience play amount acquisition unit; 4. a display unit; 5. a work roll movement control unit; 6. a work roll displacement monitoring unit; 7. a steckel mill monitoring unit; 8. a database updating unit; 9. a work roll driving unit; 10. a steckel mill; 11. a work roll; 12. a steel coil; 91. a hydraulic servo valve; 92. and a hydraulic cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a method for controlling the movement of pass and pass-specific working rolls of a steckel mill, which comprises the following steps:
step 101, monitoring the working process of a steckel mill, and acquiring the surface conditions of various types of plate blanks corresponding to various types of plate blanks rolled in various passes;
102, determining the predicted running amount of the working roll of each pass of the corresponding variety of plate blanks according to the surface condition of the plate blanks after each pass of rolling;
103, adjusting the position of the working roll according to the predicted play amount of the working roll in each pass;
104, determining whether various types of plate blanks are normally rolled after the positions of the working rolls are adjusted according to the predicted play amount of the working rolls of each pass on the steckel mill;
and judging whether the thickness, the width and the surface quality of the slabs are qualified after the slabs of all varieties are normally rolled into the slabs of all varieties, wherein the qualified slabs are normally rolled.
And 105, if the various slabs are normally rolled, recording the working roll shifting amount of each pass of the normally rolled slabs on the steckel mill, and forming a working roll shifting amount database of the various slabs. After step 105, either step 106 or step 108 may be performed.
The working roll play amount database comprises slab variety information, and the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to slabs.
Step 106, recording the work roll shifting amount of each pass of the normally rolled plate blank on the steckel mill, and then judging whether the number of statistical data corresponding to the plate blank variety in the work roll shifting amount database is larger than a preset number threshold value or not;
and 107, deleting the statistical data with the longest distance from the current time if the number of the statistical data is equal to the preset number threshold.
Thus, the number of statistical data pieces can be maintained at a proper number through steps 106-107, and the data amount is prevented from being too large. For example, the threshold value of the number of the work rolls may be 1000, so that the work roll run-out amount of each pass of 1000 work rolls of the same slab variety may be recorded, and the average value of the work roll run-out amount of each pass may be used as the work roll experience run-out amount of each pass of the slab.
108, acquiring the work roll experience fleeing amount of each pass corresponding to the type of the current plate blank from a preset work roll fleeing amount database;
step 109, determining the work roll experience play amount of the current pass according to the work roll experience play amount of each pass;
step 110, adjusting the position of the working roll according to the empirical play amount of the working roll of the current pass, which comprises the following steps:
step 1101, driving the working rolls to move in the direction of the axes of the working rolls before rolling the plate blank in the current pass;
and step 1102, controlling the working roll to stop moving when the moving displacement of the working roll reaches the empirical work shift of the working roll of the current pass.
According to the control method for the work roll play of the steckel mill pass and the pass, provided by the embodiment of the invention, the work roll play amount database of each type of plate blank is formed through long-term test adjustment. The experimental run-out amount of the working roll corresponding to each pass of the plate blank is obtained through the working roll run-out amount database of each variety of plate blanks, and the position of the working roll is adjusted once before each pass of rolling according to the experimental run-out amount of the working roll corresponding to each pass of the plate blank, so that the abrasion amount of the plate blank on the same position of the working roll is greatly reduced, and the abrasion of the plate blank on the same position of the working roll is also reduced. Therefore, the invention can automatically control the movement of the working roll in each pass, thereby improving the product quality, ensuring the surface quality of the product, improving the roll bending efficiency of the working roll and reducing the excessive abrasion of the working roll.
Corresponding to the above method embodiment, as shown in fig. 2, an embodiment of the present invention provides a device for controlling the movement of pass and pass-specific work rolls of a steckel mill, including:
the human-computer interaction unit 1 can input slab variety information of a slab to be rolled, wherein the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to the slab.
The steckel mill monitoring unit 7 is capable of determining whether or not each type of slab is normally rolled on the steckel mill.
And judging whether the thickness, the width and the surface quality of the slabs are qualified after the slabs of all varieties are normally rolled into the slabs of all varieties, wherein the qualified slabs are normally rolled.
The work roll play amount database creating means 2 is capable of recording the work roll play amount of each pass of a normally rolled slab on the steckel mill when each type of slab is normally rolled, and creating a work roll play amount database for each type of slab.
The working roll play amount database comprises slab variety information, and the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to slabs.
The database updating unit 8 is capable of recording the work roll shifting amount of each pass of the normally rolled plate blank on the steckel mill, and then judging whether the number of statistical data corresponding to the plate blank variety in the work roll shifting amount database is larger than a preset number threshold value or not; and deleting the statistical data with the longest distance from the current time when the number of the statistical data is equal to the preset number threshold.
The work roll experience play amount acquisition unit 3 can acquire the work roll experience play amount of each pass correspondingly matched with the slab variety information of the slab to be rolled, which is input by the human-computer interaction unit 1, from a preset work roll play amount database.
And the display unit 4 can display the slab variety information of the slab to be rolled, the empirical work roll shifting amount of each pass of the slab to be rolled and the moved displacement amount of the work roll of the current pass.
The working roll movement control unit 5 can control the working roll to move in the axis direction according to the empirical shifting quantity of the working roll of the corresponding pass of the plate blank to be rolled. In this embodiment, the work roll movement control unit 5 may select an industrial personal computer or the like, such as a PLC, a single chip microcomputer, or the like.
The working roll movement control unit 5 is connected with the working roll driving unit 9, and the working roll movement control unit 5 controls the working roll driving unit 9 to drive the working roll to move in the axis direction of the working roll driving unit 9. In this embodiment, the work roll driving unit 9 includes a hydraulic servo valve 91 and a hydraulic cylinder 92 that are connected to each other, the hydraulic servo valve 91 is connected to the work roll movement control unit 5, a piston rod of the hydraulic cylinder 92 is connected to the work roll, the work roll movement control unit 5 sends a signal to the hydraulic servo valve 91, the hydraulic servo valve 91 operates to drive the piston rod of the hydraulic cylinder 92 to move, and the piston rod of the hydraulic cylinder 92 drives the work roll to move along its own axis direction.
The work roll displacement monitoring unit 6 is capable of monitoring the displacement amount of the work roll movement. In this embodiment, the work roll displacement monitoring unit 6 is a position sensor, and the position sensor is configured to detect whether a piston rod of the hydraulic cylinder 92 moves to a position corresponding to an empirical shifting amount of a work roll in a pass corresponding to a slab to be rolled.
The work roll displacement monitoring unit 6 is connected to the work roll movement control unit 5. The working roll displacement monitoring unit 6 feeds back the displacement of the working roll to the working roll movement control unit 5, the working roll movement control unit 5 compares the working roll movement displacement with the working roll empirical movement of the current pass, and when the working roll movement displacement reaches the working roll empirical movement of the current pass, the working roll is controlled to stop moving.
The present embodiment has a first computer. The human-computer interaction unit 1, the working roll play amount database generation unit 2, the working roll experience play amount acquisition unit 3, the display unit 4 and the database updating unit 8 are all integrated in a first computer.
It should be noted that, for a specific implementation manner of the control device for the pass and pass-specific work roll play of the steckel mill provided in the embodiment of the present invention, reference may be made to the above method embodiment, and details are not described herein again.
The control device for the work roll play of the steckel mill pass and the pass different work rolls provided by the embodiment of the invention adjusts and forms the work roll play amount database of various plate blanks through long-term tests. The experimental run-out amount of the working roll corresponding to each pass of the plate blank is obtained through the working roll run-out amount database of each variety of plate blanks, and the position of the working roll is adjusted once before each pass of rolling according to the experimental run-out amount of the working roll corresponding to each pass of the plate blank, so that the abrasion amount of the plate blank on the same position of the working roll is greatly reduced, and the abrasion of the plate blank on the same position of the working roll is also reduced. Therefore, the invention can automatically control the movement of the working roll in each pass, thereby improving the product quality, ensuring the surface quality of the product, improving the roll bending efficiency of the working roll and reducing the excessive abrasion of the working roll.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method for controlling the movement of working rolls of a steckel mill pass and a pass-specific working roll is characterized by comprising the following steps:
acquiring the work roll experience channeling amount of each pass corresponding to the type of the current plate blank from a preset work roll channeling amount database;
determining the empirical play amount of the working roll of the current pass according to the empirical play amount of the working roll of each pass;
adjusting the position of the working roll according to the empirical play amount of the working roll of the current pass, wherein the method comprises the following steps:
driving the working roll to move in the direction of the axis of the working roll before rolling the plate blank in the current pass;
and when the moving displacement of the working roll reaches the empirical work roll shifting amount of the current pass, controlling the working roll to stop moving.
2. The method for controlling the play of the pass-to-pass work rolls of the steckel mill as claimed in claim 1, further comprising:
monitoring the surface conditions of various types of plate blanks corresponding to the various types of plate blanks after the steckel mill rolls the various types of plate blanks in each pass;
determining the predicted running amount of the working roll of each pass of the corresponding variety of plate blanks according to the surface conditions of the corresponding variety of plate blanks;
adjusting the position of the working roll according to the predicted play amount of the working roll of each pass;
determining whether various types of plate blanks are normally rolled or not after the positions of the working rolls are adjusted according to the predicted play amount of the working rolls of each pass on the steckel mill;
if the various plate blanks are normally rolled, recording the working roll play amount of each pass of the normally rolled plate blanks on the steckel mill, and forming a working roll play amount database of the various plate blanks;
the working roll play amount database comprises slab variety information, and the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to slabs.
3. The method for controlling the play of the pass-to-pass work rolls of the steckel mill as claimed in claim 2, further comprising:
recording the work roll shifting amount of each pass of the normally rolled plate blank on the steckel mill, and then judging whether the number of statistical data corresponding to the plate blank variety in the work roll shifting amount database is greater than a preset number threshold value or not;
and if the number of the statistical data is equal to the preset number threshold, deleting the statistical data with the longest distance from the current time.
4. A control device for the movement of working rolls of a steckel mill pass and a pass-specific working roll is characterized by comprising the following steps:
the human-computer interaction unit is used for inputting slab variety information of a slab to be rolled, wherein the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to the slab;
the working roll experience play amount acquisition unit is used for acquiring the working roll experience play amount of each pass correspondingly matched with the slab variety information of the slab to be rolled, which is input by the man-machine interaction unit, from a preset working roll play amount database;
the working roll movement control unit is used for controlling the working roll to move in the direction of the axis of the working roll according to the empirical shifting quantity of the working roll in the corresponding pass of the plate blank to be rolled;
the working roll displacement monitoring unit is used for monitoring the displacement of the working roll;
the working roll displacement monitoring unit is connected with the working roll movement control unit, the working roll displacement monitoring unit feeds back the displacement of the working roll to the working roll movement control unit, the working roll movement control unit compares the working roll movement displacement with the working roll experience play of the current pass, and the working roll is controlled to stop moving when the working roll movement displacement reaches the working roll experience play of the current pass.
5. The apparatus for controlling roll play between passes of a steckel mill as claimed in claim 4, further comprising:
the steckel mill monitoring unit is used for determining whether the slabs of various types are normally rolled on the steckel mill;
the working roll play amount database generating unit is used for recording the working roll play amount of each pass of the normally rolled plate blanks on the steckel mill when the plate blanks of all kinds are normally rolled to form a working roll play amount database of all kinds of plate blanks;
the working roll play amount database comprises slab variety information, and the slab variety information comprises slab steel variety, slab width, slab thickness and rolling pass times corresponding to slabs.
6. The apparatus for controlling roll play between passes of a steckel mill as claimed in claim 5, further comprising:
a database update unit to: recording the work roll shifting amount of each pass of the normally rolled plate blank on the steckel mill, and then judging whether the number of statistical data corresponding to the plate blank variety in the work roll shifting amount database is greater than a preset number threshold value or not; and deleting the statistical data with the longest distance from the current time when the number of the statistical data is equal to the preset number threshold.
7. The control device for controlling the pass-to-pass work roll shift of the steckel mill as claimed in claim 4, further comprising a work roll driving unit, wherein the work roll movement control unit is connected with the work roll driving unit, and the work roll movement control unit controls the work roll driving unit to drive the work roll to move in the direction of the axis of the work roll.
8. The device for controlling the movement of the work rolls in each pass of the steckel mill according to claim 7, wherein the work roll driving unit comprises a hydraulic servo valve and a hydraulic cylinder which are connected with each other, the hydraulic servo valve is connected with the work roll movement control unit, a piston rod of the hydraulic cylinder is connected with the work rolls, the work roll movement control unit sends a signal to the hydraulic servo valve, the hydraulic servo valve operates to drive the piston rod of the hydraulic cylinder to move, and the piston rod of the hydraulic cylinder drives the work rolls to move along the axial direction of the work rolls.
9. The device for controlling the shift of the working rolls of the steckel mill pass and the pass according to claim 8, wherein the working roll displacement monitoring unit is a position sensor, and the position sensor is used for detecting whether the piston rod of the hydraulic cylinder moves to a position corresponding to the empirical shift amount of the working rolls of the pass corresponding to the slab to be rolled.
10. The apparatus for controlling roll play between passes of a steckel mill as claimed in claim 4, further comprising:
and the display unit is used for displaying the slab variety information of the slab to be rolled, the empirical play amount of the working roll of each pass of the slab to be rolled and the moved displacement amount of the working roll of the current pass.
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| KR20120122058A (en) * | 2011-04-28 | 2012-11-07 | 현대제철 주식회사 | Controlling apparatus for roll rotation and method of controlling therefor |
| CN103056169A (en) * | 2011-10-21 | 2013-04-24 | 宝山钢铁股份有限公司 | Control method for lowering cold continuous mill edge |
| CN103909097A (en) * | 2013-01-08 | 2014-07-09 | 宝山钢铁股份有限公司 | Method for eliminating rolling force fluctuation after roll shifting of rolling mill |
| CN106269882A (en) * | 2015-05-28 | 2017-01-04 | 鞍钢股份有限公司 | Cold continuous rolling working roll dynamic variable specification play method |
| CN105032946A (en) * | 2015-07-27 | 2015-11-11 | 攀钢集团攀枝花钢钒有限公司 | Roll-shifting operation method of temper mill |
| CN105251781A (en) * | 2015-11-26 | 2016-01-20 | 首钢京唐钢铁联合有限责任公司 | Control method for tandem cold mill |
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| CN107537862A (en) | 2018-01-05 |
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