CN111438198A - Control method and device for tension roller set - Google Patents
Control method and device for tension roller set Download PDFInfo
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- CN111438198A CN111438198A CN202010143715.8A CN202010143715A CN111438198A CN 111438198 A CN111438198 A CN 111438198A CN 202010143715 A CN202010143715 A CN 202010143715A CN 111438198 A CN111438198 A CN 111438198A
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- tension roller
- tension
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- adjustment coefficient
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- 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
- B21B37/48—Tension control; Compression control
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
Abstract
The invention relates to the technical field of planishers, in particular to a control method and a control device for a tension roller set, wherein the method comprises the following steps: through the actual speed and the settlement speed that acquire every tension roller in the tension roller group, determine the tension roller that skids, then, acquire the adjustment coefficient that preset carries out the adjustment to every tension roller's moment, this adjustment coefficient is big more according to the tension that every tension roller bore, its adjustment coefficient that corresponds sets for more greatly, finally, according to this adjustment coefficient, adjust the moment of the tension roller that skids appearing, so that the moment of the tension roller that skids appears reduces, like this, can adjust the tension roller that skids fast, in time prevent the phenomenon of skidding, and then ensured the efficiency of producing the line and the surface quality of belted steel, the stability in company's annealing district has effectively been guaranteed.
Description
Technical Field
The invention relates to the technical field of planishers, in particular to a control method and device for a tension roller set.
Background
When the existing continuous annealing leveling unit runs at a high speed, certain rollers in the front and rear tension roller sets can slip.
The slipping phenomenon can cause tension fluctuation in the area of the temper mill, influence the elongation of the temper mill and a second flow control mode in a secondary pressing state, seriously influence the speed of a production line and influence the surface quality of strip steel.
Therefore, how to effectively eliminate the slipping phenomenon of the tension roller is a technical problem to be solved urgently at present.
Disclosure of Invention
In view of the above, the present invention has been made to provide a control method and apparatus for a tension roller set that overcomes or at least partially solves the above problems.
In a first aspect, an embodiment of the present invention provides a method for controlling a tension roller set, including:
acquiring the actual speed and the set speed of each tension roller in the tension roller group;
obtaining a tension roller with slipping based on the actual speed and the set speed;
acquiring a preset adjustment coefficient for adjusting the moment of each tension roller, wherein the adjustment coefficient is set according to the condition that the larger the tension born by each tension roller is, the larger the corresponding adjustment coefficient is;
and adjusting the moment of the slipping tension roller based on the adjustment coefficient so as to reduce the moment of the slipping tension roller.
Further, the acquiring a tension roller with a slip based on the actual speed and the set speed specifically includes:
obtaining an error value of each tension roller based on the actual speed and the set speed, wherein the error value is calculated by the following formula:
＝(vfruit of Chinese wolfberry-vIs provided with)/vIs provided with
Is the error value, vFruit of Chinese wolfberrySaid actual speed, v, of any tension rollerIs provided withThe corresponding set speed;
judging whether the error value of each tension roller is larger than a preset value or not;
if the value is greater than the preset value, the roller is determined as a slipping tension roller.
Further, the determining whether the error value of each tension roller is greater than a preset value specifically includes:
when the speed of each tension roller is constant, judging whether the error value of each tension roller is greater than a first preset value;
and when the speed of each tension roller is accelerated or decelerated, judging whether the error value of each tension roller is greater than a second preset value, wherein the second preset value is greater than the first preset value.
Further, the adjusting coefficient of each tension roller ranges from 0.5 to 1.0.
Further, the adjusting the torque of the tension roller with the slip based on the adjustment coefficient specifically includes:
acquiring the current moment of the tension roller which slips;
and on the basis of the adjustment coefficient, multiplying the current moment of the slipping tension roller by the corresponding adjustment coefficient to realize the adjustment of the moment of the slipping tension roller.
Further, before acquiring the current moment of the slipping tension roller, the method further comprises the following steps:
and setting the moment of each tension roller in the tension roller group according to the direction from the inlet side of the tension roller group to the outlet side of the tension roller group in an equal proportion relation.
In a second aspect, an embodiment of the present invention further provides a control device for a tension roller set, including:
the first acquisition module is used for acquiring the actual speed and the set speed of each tension roller in the tension roller group;
the obtaining module is used for obtaining a tension roller with slipping based on the actual speed and the set speed;
the second acquisition module is used for acquiring a preset adjustment coefficient for adjusting the moment of each tension roller, and the adjustment coefficient is set according to the condition that the larger the tension born by each tension roller is, the larger the corresponding adjustment coefficient is;
and the adjusting module is used for adjusting the torque of the slipping tension roller based on the adjusting coefficient so as to reduce the torque of the slipping tension roller.
In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the foregoing method steps.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the above-mentioned method steps.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a control method of a tension roller set, which comprises the following steps: through the actual speed and the settlement speed that acquire every tension roller in the tension roller group, determine the tension roller that skids, then, acquire the adjustment coefficient that preset carries out the adjustment to every tension roller's moment, this adjustment coefficient is big more according to the tension that every tension roller bore, its adjustment coefficient that corresponds sets for more greatly, finally, according to this adjustment coefficient, adjust the moment of the tension roller that skids appearing, so that the moment of the tension roller that skids appears reduces, like this, can adjust the tension roller that skids fast, in time prevent the phenomenon of skidding, and then ensured the efficiency of producing the line and the surface quality of belted steel, the stability in company's annealing district has effectively been guaranteed.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic flow chart illustrating the steps of a method for controlling a tension roller set according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram showing the structure of a tension roller group of 4 tension rollers in the first embodiment of the invention;
fig. 3 is a schematic structural view showing a control device of a tension roller group in a second embodiment of the present invention;
fig. 4 shows a schematic structural diagram of an electronic device in a third embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
The method is applied to the control of the tension roller set in the continuous annealing temper mill, and the temper mill has the functions of flattening the plate shape, eliminating a yield platform, transferring the roughness and the like, so that the qualified strip steel is obtained.
An embodiment of the present invention provides a method for controlling a tension roller set, as shown in fig. 1, including:
s101, acquiring the actual speed and the set speed of each tension roller in the tension roller group;
s102, obtaining a tension roller with slipping based on the actual speed and the set speed;
s103, acquiring a preset adjustment coefficient for adjusting the moment of each tension roller, wherein the adjustment coefficient is set according to the condition that the larger the tension born by each tension roller is, the larger the corresponding adjustment coefficient is;
and S104, adjusting the torque of the slipping tension roller based on the adjustment coefficient so as to reduce the torque of the slipping tension roller.
In the specific embodiment, the detailed description will be given by taking 4 tension rollers as an example of the tension roller group, as shown in fig. 2.
From the inlet of the tension roller group to the outlet of the tension roller group, a tension roller 1#, a tension roller 2#, a tension roller 3# and a tension roller 4# are arranged in sequence.
Normally, the moments of the 4 tension rolls in the set of tension rolls are set in equal proportion before there is no slipping tension roll. Specifically, the direction from the inlet side of the tension roller group to the outlet side of the tension roller group is gradually increased.
Then, S101 is executed to acquire an actual speed and a set speed of each tension roller in the tension roller group.
In particular, the detection can be performed by an encoder on the leveler.
Next, S102 is executed, and based on the actual speed and the set speed, a tension roller where a slip occurs is obtained.
In an alternative embodiment, an error value for each tension roller is obtained based on the actual speed and the set speed, and the error value is calculated as follows:
＝(vfruit of Chinese wolfberry-vIs provided with)/vIs provided with
Wherein, is the error value of the tension roller, specifically the error between the actual speed and the set speed of the tension roller, vFruit of Chinese wolfberryIs the actual speed, v, of either tension rollerIs provided withIs the corresponding set speed.
Judging whether the error value of each tension roller is greater than a preset value or not;
if the value is greater than the preset value, the roller is determined as a slipping tension roller.
In a specific embodiment, the error value is a constant value, for example, 5% for a uniformly running tension roller.
For the tension roller in the acceleration operation or the deceleration operation, the error value is slightly larger than the above-mentioned constant value. For example, the concentration is 5% -10%.
Therefore, when the error value of each tension roller is determined to be greater than the preset value, specifically, when the speed of each tension roller is a constant speed, it is determined to be greater than the first preset value. And when the speed of each tension roller is accelerated or decelerated, judging whether the error value of each tension roller is greater than a second preset value, wherein the second preset value is greater than the first preset value.
From this, it was determined whether or not a slip phenomenon occurred in the 4 tension rollers. When the tension roller slips, the alarm lamp is controlled to be turned on to prompt a user that the corresponding tension roller is in a slipping state.
Next, S103 is executed to obtain a preset adjustment coefficient for adjusting the torque of each tension roller, where the adjustment coefficient is set according to the situation that the larger the tension born by each tension roller is, the larger the corresponding adjustment coefficient is.
That is, the adjustment coefficients of the tension rollers corresponding to different positions in the tension roller group are preset when the slippage phenomenon occurs, and the preset adjustment coefficients are set according to the fact that the higher the tension born by each tension roller is, the higher the corresponding adjustment coefficient is. If the tension of the tension roller in the direction from the tension roller group inlet to the tension roller group outlet is gradually increased, the adjustment coefficient corresponding to each corresponding tension roller is also gradually increased, and if the tension of the tension roller in the direction from the tension roller group inlet to the tension roller group outlet is gradually decreased, the adjustment coefficient corresponding to each corresponding tension roller is also gradually decreased, and the adjustment coefficient of each tension roller is in the range of 0.5-1.0.
The strip runs along the direction from the inlet of the tension roll group to the outlet of the tension roll group. In the above-described 4 tension rolls, when the adjustment coefficients are assigned to the tension rolls, the tension roll 1# may be set to any value of 0.5 to 0.7, preferably 0.6, by taking as an example that the tension of the tension roll is gradually increased in the direction from the entrance of the tension roll group to the exit of the tension roll group. The tension roller 2# may be set to any value of 0.6 to 0.8, and preferably 0.7. The tension roller 3# may be set to any value of 0.7 to 0.9, preferably 0.8. The tension roller 4# may be set to any value of 0.8 to 1.0, and preferably 0.9.
Finally, S104 is executed, and based on the adjustment coefficient, the torque of the tension roller with the slippage is adjusted, so that the torque of the tension roller with the slippage is reduced.
Specifically, the moment of the tension roller with the slip is obtained, namely the moment of the tension roller under the normal condition, and under the normal condition, the moment of each tension roller in the tension roller group is set according to the equal proportion relation of the directions from the inlet side of the tension roller group to the outlet side of the tension roller group. Then, based on the adjustment coefficient, the current moment of the slipping tension roller is multiplied by the corresponding adjustment coefficient, so that the moment of the slipping tension roller is adjusted.
For example, among the above-mentioned 4 tension rollers, the torque of the tension roller 1# is T, the torque of the tension roller 2# is 2T, the torque of the tension roller 3# is 4T, and the torque of the tension roller 4# is 8T in a normal case. If the tension roller 3# slips, the adjustment coefficient of the tension roller 3# is obtained to be 0.8, so the current moment 8T of the tension roller 3# is multiplied by 0.8 to obtain 6.4T. The tension roller 3# is controlled based on the adjusted torque.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a control method of a tension roller set, which comprises the following steps: through the actual speed and the settlement speed that acquire every tension roller in the tension roller group, determine the tension roller that skids, then, acquire the adjustment coefficient that preset carries out the adjustment to every tension roller's moment, this adjustment coefficient is big more according to the tension that every tension roller bore, its adjustment coefficient that corresponds sets for more greatly, finally, according to this adjustment coefficient, adjust the moment of the tension roller that skids appearing, so that the moment of the tension roller that skids appears reduces, like this, can adjust the tension roller that skids fast, in time prevent the phenomenon of skidding, and then ensured the efficiency of producing the line and the surface quality of belted steel, the stability in company's annealing district has effectively been guaranteed.
Moreover, by adopting the automatic control mode, the reaction speed is fast from the time period from the judgment of the slipping state to the time period required by the corresponding adjustment, other influences cannot be generated, and the stability of the continuous annealing furnace area is effectively ensured.
Meanwhile, the method is realized by changing the program and the control interface, and is convenient for technical personnel to change, adjust and operate.
Example two
Based on the same inventive concept, the present invention also provides a control device of a tension roller set, as shown in fig. 3, including:
a first obtaining module 301, configured to obtain an actual speed and a set speed of each tension roller in the set of tension rollers;
an obtaining module 302, configured to obtain a tension roller with a slip based on the actual speed and the set speed;
a second obtaining module 303, configured to obtain a preset adjustment coefficient for adjusting the torque of each tension roller, where the adjustment coefficient is set according to that the larger the tension borne by each tension roller is, the larger the corresponding adjustment coefficient is;
an adjusting module 304, configured to adjust the torque of the slipping tension roller based on the adjustment coefficient, so that the torque of the slipping tension roller is reduced.
In an optional implementation manner, the obtaining module specifically includes:
a first obtaining unit configured to obtain an error value of each tension roller based on the actual speed and the set speed, the error value being calculated by:
＝(vfruit of Chinese wolfberry-vIs provided with)/vIs provided with
Is the error value, vFruit of Chinese wolfberrySaid actual speed, v, of any tension rollerIs provided withThe corresponding set speed;
the judging unit is used for judging whether the error value of each tension roller is larger than a preset value or not;
and a determining unit for determining the tension roller as a slipping tension roller when the tension roller is larger than a preset value.
In an optional implementation manner, the determining unit is specifically configured to:
when the speed of each tension roller is constant, judging whether the error value of each tension roller is greater than a first preset value;
and when the speed of each tension roller is accelerated or decelerated, judging whether the error value of each tension roller is greater than a second preset value, wherein the second preset value is greater than the first preset value.
In an optional embodiment, the adjustment factor is in a range of 0.5 to 1.0.
In an optional implementation manner, the adjusting module specifically includes:
the second acquisition unit is used for acquiring the current moment of the slipping tension roller;
and the adjusting unit is used for multiplying the current moment of the slipping tension roller by the corresponding adjusting coefficient based on the adjusting coefficient to realize the adjustment of the moment of the slipping tension roller.
In an optional embodiment, the adjusting module further comprises:
and the setting unit is used for setting the moment of each tension roller in the tension roller group according to the direction from the inlet side of the tension roller group to the outlet side of the tension roller group in an equal proportion relation.
EXAMPLE III
Based on the same inventive concept, a third embodiment of the present invention provides an electronic device, as shown in fig. 4, including a memory 404, a processor 402, and a computer program stored in the memory 404 and executable on the processor 402, wherein the processor 402 executes the computer program to implement some or all of the steps of the control method for the tension roller set described above.
Where in fig. 4 a bus architecture (represented by bus 400) is shown, bus 400 may include any number of interconnected buses and bridges, and bus 400 links together various circuits including one or more processors, represented by processor 402, and memory, represented by memory 404. The bus 400 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 406 provides an interface between the bus 400 and the receiver 401 and transmitter 403. The receiver 401 and the transmitter 403 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 402 is responsible for managing the bus 400 and general processing, while the memory 404 may be used for storing data used by the processor 402 in performing operations.
Example four
Based on the same inventive concept, a fourth embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when being executed by a processor, implements all or part of the steps in the control method of the tension roller group described above.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the control means, electronics of the tension roller set according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (9)
1. A method of controlling a tension roller set, comprising:
acquiring the actual speed and the set speed of each tension roller in the tension roller group;
obtaining a tension roller with slipping based on the actual speed and the set speed;
acquiring a preset adjustment coefficient for adjusting the moment of each tension roller, wherein the adjustment coefficient is set according to the condition that the larger the tension born by each tension roller is, the larger the corresponding adjustment coefficient is;
and adjusting the moment of the slipping tension roller based on the adjustment coefficient so as to reduce the moment of the slipping tension roller.
2. The method according to claim 1, wherein the obtaining of the tension roller with the occurrence of the slip based on the actual speed and the set speed specifically comprises:
obtaining an error value of each tension roller based on the actual speed and the set speed, wherein the error value is calculated by the following formula:
＝(vfruit of Chinese wolfberry-vIs provided with)/vIs provided with
Is the error value, vFruit of Chinese wolfberrySaid actual speed, v, of any tension rollerIs provided withThe corresponding set speed;
judging whether the error value of each tension roller is larger than a preset value or not;
if the value is greater than the preset value, the roller is determined as a slipping tension roller.
3. The method of claim 2, wherein the determining whether the error value of each tension roller is greater than a predetermined value comprises:
when the speed of each tension roller is constant, judging whether the error value of each tension roller is greater than a first preset value;
and when the speed of each tension roller is accelerated or decelerated, judging whether the error value of each tension roller is greater than a second preset value, wherein the second preset value is greater than the first preset value.
4. The method of claim 1, wherein the adjustment factor of each tension roller is in the range of 0.5 to 1.0.
5. The method of claim 1, wherein said adjusting the torque of said slipping tension roller based on said adjustment factor comprises:
acquiring the current moment of the tension roller which slips;
and on the basis of the adjustment coefficient, multiplying the current moment of the slipping tension roller by the corresponding adjustment coefficient to realize the adjustment of the moment of the slipping tension roller.
6. The method of claim 5, wherein before obtaining the current moment of the slipping tension roller, further comprising:
and setting the moment of each tension roller in the tension roller group according to the direction from the inlet side of the tension roller group to the outlet side of the tension roller group in an equal proportion relation.
7. A control device for a tension roller set, comprising:
the first acquisition module is used for acquiring the actual speed and the set speed of each tension roller in the tension roller group;
the obtaining module is used for obtaining a tension roller with slipping based on the actual speed and the set speed;
the second acquisition module is used for acquiring a preset adjustment coefficient for adjusting the moment of each tension roller, and the adjustment coefficient is set according to the condition that the larger the tension born by each tension roller is, the larger the corresponding adjustment coefficient is;
and the adjusting module is used for adjusting the torque of the slipping tension roller based on the adjusting coefficient so as to reduce the torque of the slipping tension roller.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method steps of any of claims 1-6 when executing the program.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 6.
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| CN112828052A (en) * | 2021-01-05 | 2021-05-25 | 北京科技大学 | Tension roller slip online evaluation method based on strip steel cold rolling |
| CN113086723A (en) * | 2021-03-24 | 2021-07-09 | 首钢智新迁安电磁材料有限公司 | Tension roller slipping determination method, device and system based on strip steel processing production line |
| CN113353704A (en) * | 2021-05-31 | 2021-09-07 | 广东利元亨智能装备股份有限公司 | Multi-level main drive non-cache tension control mechanism, method, device and storage medium |
| CN114011888A (en) * | 2021-10-18 | 2022-02-08 | 山西太钢不锈钢股份有限公司 | Automatic adjusting method for torque of tension roller before loop |
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| CN114798752A (en) * | 2022-04-12 | 2022-07-29 | 首钢京唐钢铁联合有限责任公司 | Strip steel and plate-shaped roller slippage judgment method and device based on double-stand temper mill |
| CN114798752B (en) * | 2022-04-12 | 2024-05-10 | 首钢京唐钢铁联合有限责任公司 | Strip steel and plate roller slip judging method and device based on double-rack leveling machine |
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