CN116944249A - Strip steel flattening method and device - Google Patents
Strip steel flattening method and device Download PDFInfo
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- CN116944249A CN116944249A CN202310896301.6A CN202310896301A CN116944249A CN 116944249 A CN116944249 A CN 116944249A CN 202310896301 A CN202310896301 A CN 202310896301A CN 116944249 A CN116944249 A CN 116944249A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 301
- 239000010959 steel Substances 0.000 title claims abstract description 301
- 238000000034 method Methods 0.000 title claims abstract description 71
- 230000001276 controlling effect Effects 0.000 claims description 21
- 230000003746 surface roughness Effects 0.000 claims description 16
- 230000001133 acceleration Effects 0.000 claims description 12
- 238000005498 polishing Methods 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 20
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
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- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a leveling method and a leveling device for strip steel, wherein the leveling method is characterized in that by acquiring the leveling sequence of the strip steel with a plurality of leveling periods, whether the first strip steel roughness of the current period is larger than the second strip steel roughness of the next period is determined, when the first strip steel roughness is larger than the second strip steel roughness, the current leveling strip steel of the current period is controlled to polish a leveling working roller so that the leveling working roller reaches the target roughness of the next period, when the strip steel of the next period is leveled, the leveling working roller to be leveled of the next period is leveled based on the leveling working roller reaching the target roughness, and because the strip steel is controlled to polish the leveling working roller to the required roughness in the leveling process, roller changing is not needed when the leveling is implemented in the next period, the roller changing frequency of the leveling working roller on the leveling machine is reduced, and the leveling efficiency of the strip steel is further improved.
Description
Technical Field
The invention relates to the technical field of leveling strip steel, in particular to a strip steel leveling method and device.
Background
The leveling machine is used for controlling the plate shape on a cold-rolled plate continuous annealing production line, and the plate shape, the performance and the surface quality stability of the steel coil are finally ensured through continuous rolling control, roller changing and other operations of the leveling machine, so that the condition that the plate surface quality is not in accordance with the requirements is avoided. As different demands of order clients are increased, the roughness requirement on high-grade strip steel is increased, the leveling machine needs to replace a working roller frequently and manually, and the furnace area is greatly slowed down to cause defects or accidents such as buckling strip breakage and the like, so that the processing difficulty is extremely high, and the potential safety hazard is large.
Therefore, how to improve the flattening efficiency of the strip steel is a technical problem to be solved at present.
Disclosure of Invention
The flattening method and the device for the strip steel can reduce the roll changing frequency of the flattening working roll on the flattening machine and improve the flattening efficiency of the strip steel.
The embodiment of the invention provides the following scheme:
in a first aspect, an embodiment of the present invention provides a method for flattening a strip steel, where the method includes:
obtaining a strip steel flattening sequence comprising a plurality of flattening periods, wherein the surface roughness of the strip steel flattened by each flattening period is the same;
determining whether the first band steel roughness of the current period is larger than the second band steel roughness of the next period according to the band steel leveling sequence;
when the first band steel roughness is larger than the second band steel roughness, the current leveling band steel in the current period is controlled to polish the leveling working roller so that the leveling working roller reaches the target roughness of the next period;
and flattening the strip steel to be flattened in the next period based on the flattening working roller reaching the target roughness.
In an alternative embodiment, the obtaining a strip flattening sequence comprising a plurality of flattening cycles comprises:
obtaining the roughness of the strip steel in each flattening period in the plurality of flattening periods, wherein each flattening period comprises at least one coil of steel to be flattened;
and performing roughness descending order arrangement on the plurality of strip steel roughness to obtain the strip steel leveling order of the plurality of rolls of strip steel to be leveled.
In an alternative embodiment, the controlling the current leveling strip steel in the current period to polish the leveling working roll includes:
acquiring the current leveling length and initial elongation of the current leveling strip steel in the current period and the target roughness;
judging whether the current leveling length is larger than a first strip steel length, wherein the first strip steel length is the minimum strip steel length required by leveling strip steel based on the initial elongation to enable the leveling working roller to reach the target roughness;
if yes, flattening the current flattening strip steel with the initial elongation;
if not, the initial elongation is regulated to increase the preset elongation, and the current leveling strip steel is leveled according to the preset elongation.
In an alternative embodiment, before the flattening process is performed on the currently flattened strip with the preset elongation, the method further includes:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset second strip steel length, controlling the front crease-resist roller height of the leveling machine to be increased to a first height and the rear crease-resist roller height to be increased to a second height.
In an alternative embodiment, before the flattening process is performed on the currently flattened strip with the preset elongation, the method further includes:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset third strip steel length, controlling the strip steel inlet tension of the leveling machine to be reduced to a first tension and controlling the strip steel outlet tension to be reduced to a second tension.
In an alternative embodiment, before the flattening process is performed on the currently flattened strip with the preset elongation, the method further includes:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset fourth strip steel length, controlling the leveling liquid concentration of the leveling machine to be reduced to the preset concentration.
In an alternative embodiment, before the flattening process is performed on the currently flattened strip with the preset elongation, the method further includes:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset fifth strip steel length, controlling the running acceleration of the leveling machine to be increased to the preset acceleration.
In a second aspect, an embodiment of the present invention further provides a leveling apparatus for a strip steel, where the apparatus includes:
the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a strip steel flattening sequence comprising a plurality of flattening periods, wherein the surface roughness of the strip steel flattened by each flattening period is the same;
the determining module is used for determining whether the first steel band roughness of the current period is larger than the second steel band roughness of the next period according to the strip steel leveling sequence;
the control polishing module is used for controlling the current leveling strip steel in the current period to polish the leveling working roller when the first strip steel roughness is larger than the second strip steel roughness so as to enable the leveling working roller to reach the target roughness in the next period;
and the leveling module is used for leveling the strip steel to be leveled in the next period based on the leveling working roller reaching the target roughness.
In a third aspect, embodiments of the present invention also provide an electronic device comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of the method of any one of the first aspects.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements the steps of the method according to any of the first aspects.
Compared with the prior art, the flattening method and the flattening device for the strip steel have the following advantages:
according to the flattening method, the flattening sequence of the strip steel with a plurality of flattening periods is obtained, whether the first strip steel roughness of the current period is larger than the second strip steel roughness of the next period is determined, when the first strip steel roughness is larger than the second strip steel roughness, the current flattening strip steel of the current period is controlled to polish the flattening working roller so that the flattening working roller reaches the target roughness of the next period, when the strip steel of the next period is flattened, flattening treatment is carried out on the strip steel to be flattened of the next period based on the flattening working roller reaching the target roughness, and because the strip steel is controlled to polish the flattening working roller to the required roughness in the flattening process, roller replacement is not needed when flattening is carried out in the next period, the roller replacement frequency of the flattening working roller on the flattening machine is reduced, and the flattening efficiency of the strip steel is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present description, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for flattening strip steel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a leveling machine according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a leveling device for strip steel according to an embodiment of the present invention.
Reference numerals illustrate: 1-band steel, 2-leveling working rolls, 3-front crease-resistant rolls, 4-rear crease-resistant rolls and 5-tension rolls.
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 apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a method for flattening strip steel according to an embodiment of the present invention, where the method includes:
s11, obtaining a strip steel flattening sequence comprising a plurality of flattening periods, wherein the surface roughness of the strip steel flattened in each flattening period is the same.
Specifically, one leveling period is a period of processing the strip steel with the same surface roughness by a leveling machine, at least one coil of steel coil to be leveled is processed in one leveling period, the length of each coil of strip steel is about 2500m, and the strip steel leveling sequence represents the leveling arrangement sequence of the strip steel with different roughness requirements when the strip steel is leveled. In a continuous production line, the production plan of the strip steel can be based; of course, when the flattening process is separately performed, the flattening process may also be obtained based on the sequencing of the flattened strip.
Because the leveling working roller has a certain polishing effect on the leveling working roller due to the friction force between the leveling working roller and the strip steel in the leveling process of the strip steel, the surface roughness of the leveling working roller is gradually reduced along with the accumulation of the leveling length of the strip steel. Based on the roughness change rule of the leveling working rolls, if the leveling periods in the strip steel leveling sequence are arranged in a disordered manner, frequent roll replacement is needed due to the fact that the roughness of the strip steel to be leveled is increased after one leveling period is completed. Based on this, in one specific embodiment, obtaining a strip flattening sequence comprising a plurality of flattening cycles comprises:
the method comprises the steps of firstly, obtaining the roughness of strip steel in each flattening period in a plurality of flattening periods, wherein each flattening period comprises at least one coil of steel coil to be flattened; the roughness of the strip steel is the surface roughness of the strip steel after being flattened by the flattening working roller, and the roughness of the strip steel is transferred to the surface of the strip steel by the flattening working roller in the flattening process, so that the corresponding relationship exists between the roughness of the strip steel and the surface roughness of the flattening working roller, the roughness of the strip steel can be determined based on the order information of the strip steel, and the roughness of the strip steel required by different application requirements is different.
And secondly, performing roughness descending order arrangement on the plurality of strip steel roughness to obtain the strip steel leveling sequence of the plurality of rolls of strip steel to be leveled. The band steel roughness descending order is convenient for carrying out subsequent polishing of the leveling working roller in the leveling process so as to reduce the roller changing frequency of the leveling working roller. After the strip steel flattening sequence including a plurality of flattening cycles is acquired, the process proceeds to step S12.
S12, determining whether the first band steel roughness of the current period is larger than the second band steel roughness of the next period according to the band steel leveling sequence.
Specifically, the strip steel leveling sequence can be a roughness array established according to the strip steel leveling sequence, each element in the array represents the strip steel leveling roughness under the sequence, the first strip steel roughness represents the roughness requirement of leveling the strip steel in the current period, and the second strip steel roughness represents the roughness requirement of leveling the strip steel in the next period, so that the first strip steel roughness and the second strip steel roughness can be extracted based on the strip steel leveling sequence, and comparison is performed. It can be understood that when the comparison is implemented, a corresponding program variable can be established, the first steel band roughness and the second steel band roughness are assigned to the corresponding variable, and then the comparison output result is compared, and the comparison result can be represented in a binary mode, for example, when the output result is 1, the first steel band roughness is larger than the second steel band roughness; and when the output result is 0, the first band steel roughness is not larger than the second band steel roughness. Of course, the comparison may be performed manually, a corresponding instruction is input, whether the first strip steel roughness is greater than the second strip steel roughness is determined based on the received input instruction, and the step S13 is performed after the comparison is completed.
And S13, when the first band steel roughness is larger than the second band steel roughness, controlling the current leveling band steel in the current period to polish the leveling working roller so that the leveling working roller reaches the target roughness in the next period.
Specifically, the roughness of the first strip steel is larger than that of the second strip steel, which means that in the flattening process from the current period to the next period, the current flattening strip steel in the current period is controlled to polish the flattening working roller on the basis of the non-roll change implementation; otherwise, if the first band steel roughness is not greater than the second band steel roughness, which indicates that the operation of not changing the rollers cannot be implemented, after the band steel in the current period is leveled, replacing the leveling working roller with larger roughness to level the band feeling in the next period.
It can be understood that, in order to ensure that the leveling work roll reaches the target roughness of the next period, the leveling work roll can be implemented by increasing the friction force between the strip steel and the leveling work roll, or the contact area between the strip steel and the leveling work roll can be increased, and the leveling work roll can be polished to the target roughness, which is not particularly limited.
In a specific embodiment, the polishing of the leveling work roll by the current leveling strip steel in the current period is controlled, and the polishing comprises the following steps:
the first step, the current leveling length and initial elongation of the current leveling strip steel in the current period and the target roughness are obtained. The current flattened length characterizes the total length of the flattened strip in the current period. For example, when a coil of steel is flattened in the current period, the current flattening length is the length of a coil of strip steel, and when a plurality of coils are flattened in the current period, the current flattening length is the sum of the lengths of the plurality of coils. The initial elongation is a preset elongation for flattening the current flat strip steel, and can be determined based on the flattening process of the strip steel. The target roughness is characterized by the surface roughness of the leveling working roll required for leveling the strip steel in the next period, the surface roughness of the leveling working roll has a corresponding relation with the surface roughness of the strip steel after leveling, and the target roughness can be determined based on the surface roughness of the leveling working roll corresponding to the second roughness.
And a second step of judging whether the current leveling length is larger than a first strip steel length, wherein the first strip steel length is the minimum strip steel length required by leveling the strip steel based on the initial elongation to enable the leveling working roller to reach the target roughness. The strip steel is naturally worn on the leveling working roller in the leveling process, and the first strip steel length represents the strip steel length from the surface roughness of the current period to the target roughness of the leveling working roller in the normal leveling process.
Thirdly, when the current leveling length is larger than the first strip steel length, the fact that the leveling strip steel can be naturally worn to the target roughness by the leveling working roller in the current period through the initial elongation is indicated, and then the leveling treatment is carried out on the current leveling strip steel through the initial elongation. Otherwise, when the current leveling length is not greater than the first strip steel length, the fact that the leveling strip steel cannot enable the leveling working roller to be worn naturally to the target roughness in the current period is indicated, the initial elongation is adjusted to increase the preset elongation, and leveling treatment is carried out on the current leveling strip steel in the preset elongation. It is understood that the predetermined elongation may be predetermined, for example, the initial elongation is increased by 0.1 to the predetermined elongation.
Referring to fig. 2, when the strip steel is leveled based on a leveling machine, front anti-wrinkling rollers and rear anti-wrinkling rollers are respectively arranged at two sides of the leveling working roller, the front anti-wrinkling rollers and the rear anti-wrinkling rollers are used for adjusting the contact area between the strip steel and the leveling working roller, and the higher the horizontal heights of the front anti-wrinkling rollers and the rear anti-wrinkling rollers are, the larger the contact area between the strip steel and the leveling working roller is; conversely, the smaller the contact area. The front crease-resist roller is provided with a tension roller on one side far away from the leveling working roller, and the rear crease-resist roller is also provided with a tension roller on one side far away from the leveling working roller, so that the leveling tension of the strip steel can be adjusted through the tension roller.
In practical application, the polishing effect of the leveling working roller is limited due to the fact that the elongation rate of leveling the strip steel is increased, if the length of the strip steel in the current period is short, the leveling working roller can not reach the target roughness when the strip steel in the current period is leveled, and roller replacement is still needed. Based on this, in a specific embodiment, before the leveling process is performed on the current leveling strip steel with the preset elongation, the method further includes:
if the current leveling length is not greater than the first strip steel length and is smaller than the preset second strip steel length, the leveling strip steel length in the current leveling period is short, the front crease-resist roller height of the leveling machine is controlled to be increased to a first height, and the rear crease-resist roller height is controlled to be increased to a second height. After the horizontal heights of the front crease-resistant roller and the rear crease-resistant roller are increased, the contact area of the strip steel and the leveling working roller is increased, the length of the strip steel required by polishing the leveling working roller to the target roughness is smaller, and when the current leveling length is smaller than the second strip steel length, the leveling working roller can be polished to the target roughness still by improving the horizontal heights of the front crease-resistant roller and the rear crease-resistant roller. It should be noted that the height increase of the front and rear crease-resist rolls may be determined by calibration experiments, for example, by 20% at the initial height; of course, it may be determined based on the experience of the skilled person, and it is sufficient to polish the flat work roll to the target roughness, and the present invention is not particularly limited. The contact area between the strip steel and the roll surface is increased under the condition that the plate shape is not affected, so that the rolling force is passively increased, and the grinding roll effect is achieved.
In a specific embodiment, before the leveling treatment is performed on the current leveling strip steel with the preset elongation, the method further comprises:
if the current leveling length is not greater than the first strip steel length and is smaller than the preset third strip steel length, the fact that the leveling strip steel length of the current leveling period is shorter is also indicated, and the leveling working roller cannot achieve the target roughness by polishing with the current leveling length, the strip steel inlet tension of the leveling machine is controlled to be reduced to be the first tension, and the strip steel outlet tension is controlled to be reduced to be the second tension. The reduction of the tension can be reduced by 15% on the initial basis, so that the surface tension of the strip steel is reduced, the rolling force is regulated according to the plate type under the condition that the flat plate type of the strip steel is not influenced, and the rolling force is required to be increased, so that the more efficient grinding roller effect is achieved.
In a specific embodiment, before the leveling treatment is performed on the current leveling strip steel with the preset elongation, the method further comprises:
if the current leveling length is not greater than the first strip steel length and is smaller than the preset fourth strip steel length, the fact that the leveling strip steel length of the current leveling period is shorter is also indicated, and the leveling working roller cannot achieve the target roughness when the leveling working roller is polished with the current leveling length, and the leveling liquid concentration of the leveling machine is controlled to be reduced to the preset concentration. The concentration of the leveling liquid can be reduced from an initial value of 3% to 1%. The lubricating liquid concentration on the surface of the strip steel is lower, the strip steel is smoother than before, and in order to meet the requirement of the plate type, the rolling force is automatically improved to compensate the contact force with the strip steel, so that the more efficient grinding roller effect is achieved.
In a specific embodiment, before the leveling treatment is performed on the current leveling strip steel with the preset elongation, the method further comprises:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset fifth strip steel length, controlling the running acceleration of the leveling machine to be increased to the preset acceleration. The amount of acceleration increase may be from an initial value of 0.3 m/s to 0.35 m/s. The upper speed limit of the leveling machine is increased from 360mpm to 460mpm, so that the friction force between the leveling working roller and the surface of the strip steel is increased by adjusting and changing the torque and the speed difference, the rolling force of the leveling machine is changed more greatly, and the effect of a more efficient grinding roller is achieved.
It should be noted that, the lengths of the second strip steel to the fifth strip steel may be sequentially decreased, and the elongation rate of the strip steel for leveling, the height of the crease-resist roller, the tension of the strip steel, the concentration of the leveling liquid and the running acceleration of the leveling machine may be independently implemented, or may be implemented in a combined and overlapped manner, which is not particularly limited herein. The priority can be set from high to low according to the elongation, the height of the crease-resistant roller, the tension of the strip steel, the concentration of the leveling liquid and the running acceleration, and the working roller can be combined and overlapped for use, and can reach the target roughness when reaching the next leveling period, and the working roller can enter the step S14 after reaching the target roughness of the next period.
S14, flattening the strip steel to be flattened in the next period based on the flattening working roller reaching the target roughness.
Specifically, the leveling time sequence levels the working roll to reach the target roughness when the next period is reached through polishing the strip steel, so that the roll changing operation is not needed, and the strip steel leveling of the next period can be directly implemented based on the leveling working roll.
Taking the first band steel with the roughness of 2.6 mu m and the second band steel with the roughness of 1.6 mu m as an example, when the production line is normally produced, a large-roughness leveling working roller corresponding to 2.6 mu m is used. Through polishing the leveling working roll, the surface roughness of the leveling working roll can be reduced more rapidly during production of the leveling machine, so that the requirement of customers on high-grade products is met. Before the leveling method of the embodiment of the invention is implemented, the leveling working roller corresponding to 2.6 mu m is required to be replaced in advance when the high-grade strip steel is produced. The transition to a high-grade coil is made by producing coils of 1.2-0.8mm thickness, each coil having a length of 2500m. The plate shape of the steel coil in transition is well controlled, and the comprehensive adjustment of various parameters can not affect the plate shape of the strip steel. Before the method is not adopted, a leveling working roller with the diameter of 2.6 mu m needs to consume about 80-90Km mileage, which is equivalent to 30 coiled steel for transition, and the high-grade low-roughness strip steel can be produced. After the methods of increasing the elongation of the strip steel to be leveled, increasing the height of the crease-resistant roller, reducing the tension of the strip steel, reducing the concentration of the leveling liquid and increasing the running acceleration of the leveling machine are adopted, the working roller consumes about 25Km mileage, and the leveling requirement of the high-level roughness strip steel can be met by 10-coil steel transition.
Therefore, the leveling method greatly reduces the frequency of replacing the 1.6 mu m working roll to meet the requirement of high-grade products of customers, reduces the occurrence of quality defects in the leveling process, improves the production and use mileage of the working roll, and reduces the roll consumption cost of the working roll, thereby reducing the processing cost of production; in addition, the method has the advantages of simple operation and convenient and quick use.
Based on the same inventive concept as the flattening method, the embodiment of the invention further provides a device for flattening strip steel, referring to fig. 3, the device includes:
an obtaining module 301, configured to obtain a strip steel flattening order including a plurality of flattening periods, where the surface roughness of the strip steel flattened in each flattening period is the same;
a determining module 302, configured to determine, according to the strip flattening order, whether the first strip roughness of the current period is greater than the second strip roughness of the next period;
a polishing control module 303, configured to control, when the first strip roughness is greater than the second strip roughness, the current leveling strip in the current period to polish the leveling work roller, so that the leveling work roller reaches the target roughness in the next period;
and the flattening module 304 is used for flattening the strip steel to be flattened in the next period based on the flattening working roll reaching the target roughness.
In an alternative embodiment, the acquiring module includes:
the first obtaining submodule is used for obtaining the roughness of the strip steel in each of the plurality of flattening periods, wherein each flattening period comprises at least one coil of steel coil to be flattened;
and the obtaining submodule is used for carrying out roughness descending order arrangement on the plurality of strip steel roughness so as to obtain the strip steel leveling sequence of the plurality of rolls of strip steel to be leveled.
In an alternative embodiment, the control sanding module includes:
the second obtaining submodule is used for obtaining the current leveling length and the initial elongation of the current leveling strip steel in the current period and the target roughness;
the judging submodule is used for judging whether the current leveling length is larger than a first strip steel length or not, wherein the first strip steel length is the minimum strip steel length required by leveling strip steel based on the initial elongation to enable the leveling working roller to reach the target roughness;
the leveling processing submodule is used for leveling the current leveling strip steel with the initial elongation when the current leveling length is larger than the first strip steel length;
and the adjusting and processing submodule is used for adjusting the initial elongation to increase the preset elongation and performing flattening processing on the current flattening strip steel according to the preset elongation when the current flattening length is not greater than the first strip steel length.
In an alternative embodiment, the control sanding module further includes:
and the first control submodule is used for controlling the height of the front crease-resistant roller of the leveling machine to be increased to a first height and the height of the rear crease-resistant roller to be increased to a second height when the current leveling length is not greater than the first strip steel length and smaller than the preset second strip steel length.
In an alternative embodiment, the control sanding module further includes:
and the second control submodule is used for controlling the strip steel inlet tension of the leveling machine to be reduced to the first tension and the strip steel outlet tension to be reduced to the second tension when the current leveling length is not greater than the first strip steel length and smaller than the preset third strip steel length.
In an alternative embodiment, the control sanding module further includes:
and the third control submodule is used for controlling the concentration of the leveling liquid of the leveling machine to be reduced to a preset concentration when the current leveling length is not greater than the first strip steel length and smaller than the preset fourth strip steel length.
In an alternative embodiment, the control sanding module further includes:
and the fourth control submodule is used for controlling the running acceleration of the leveling machine to be increased to a preset acceleration when the current leveling length is not greater than the first strip steel length and is smaller than the preset fifth strip steel length.
Based on the same inventive concept as the flattening method, an embodiment of the present invention further provides an electronic device comprising a processor and a memory, the memory being coupled to the processor, the memory storing instructions which, when executed by the processor, cause the electronic device to perform the steps of any one of the flattening methods.
Based on the same inventive concept as the flattening method, the embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements the steps of any one of the flattening methods.
The technical scheme provided by the embodiment of the invention has at least the following technical effects or advantages:
according to the flattening method, whether the first band steel roughness of the current period is larger than the second band steel roughness of the next period is determined by acquiring the band steel flattening sequence comprising a plurality of flattening periods, when the first band steel roughness is larger than the second band steel roughness, the current flattening band steel of the current period is controlled to polish the flattening working roller so that the flattening working roller reaches the target roughness of the next period, when the band steel of the next period is flattened, flattening processing is carried out on the band steel to be flattened of the next period based on the flattening working roller reaching the target roughness, and because the band steel is controlled to polish the flattening working roller to the required roughness in the flattening process, roll replacement is not needed when flattening is carried out in the next period, roll replacement frequency of the flattening working roller on the flattening machine is reduced, and flattening efficiency of the band steel is improved.
It will be appreciated by those skilled in the art that 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 (modules, systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 computer, 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.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A method of flattening a strip steel, the method comprising:
obtaining a strip steel flattening sequence comprising a plurality of flattening periods, wherein the surface roughness of the strip steel flattened by each flattening period is the same;
determining whether the first band steel roughness of the current period is larger than the second band steel roughness of the next period according to the band steel leveling sequence;
when the first band steel roughness is larger than the second band steel roughness, the current leveling band steel in the current period is controlled to polish the leveling working roller so that the leveling working roller reaches the target roughness of the next period;
and flattening the strip steel to be flattened in the next period based on the flattening working roller reaching the target roughness.
2. The method of claim 1, wherein the obtaining a strip flattening sequence comprising a plurality of flattening cycles comprises:
obtaining the roughness of the strip steel in each flattening period in the plurality of flattening periods, wherein each flattening period comprises at least one coil of steel to be flattened;
and performing roughness descending order arrangement on the plurality of strip steel roughness to obtain the strip steel leveling order of the plurality of rolls of strip steel to be leveled.
3. The method of leveling strip steel according to claim 1, wherein said controlling the current leveling strip steel of the current cycle to polish the leveling work rolls comprises:
acquiring the current leveling length and initial elongation of the current leveling strip steel in the current period and the target roughness;
judging whether the current leveling length is larger than a first strip steel length, wherein the first strip steel length is the minimum strip steel length required by leveling strip steel based on the initial elongation to enable the leveling working roller to reach the target roughness;
if yes, flattening the current flattening strip steel with the initial elongation;
if not, the initial elongation is regulated to increase the preset elongation, and the current leveling strip steel is leveled according to the preset elongation.
4. The method of flattening a strip steel according to claim 3, wherein prior to said flattening of said currently flattened strip steel at said predetermined elongation, said method further comprises:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset second strip steel length, controlling the front crease-resist roller height of the leveling machine to be increased to a first height and the rear crease-resist roller height to be increased to a second height.
5. The method of flattening a strip steel according to claim 3, wherein prior to said flattening of said currently flattened strip steel at said predetermined elongation, said method further comprises:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset third strip steel length, controlling the strip steel inlet tension of the leveling machine to be reduced to a first tension and controlling the strip steel outlet tension to be reduced to a second tension.
6. The method of flattening a strip steel according to claim 3, wherein prior to said flattening of said currently flattened strip steel at said predetermined elongation, said method further comprises:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset fourth strip steel length, controlling the leveling liquid concentration of the leveling machine to be reduced to the preset concentration.
7. The method of flattening a strip steel according to claim 3, wherein prior to said flattening of said currently flattened strip steel at said predetermined elongation, said method further comprises:
and if the current leveling length is not greater than the first strip steel length and is smaller than the preset fifth strip steel length, controlling the running acceleration of the leveling machine to be increased to the preset acceleration.
8. A strip flattening apparatus, said apparatus comprising:
the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a strip steel flattening sequence comprising a plurality of flattening periods, wherein the surface roughness of the strip steel flattened by each flattening period is the same;
the determining module is used for determining whether the first steel band roughness of the current period is larger than the second steel band roughness of the next period according to the strip steel leveling sequence;
the control polishing module is used for controlling the current leveling strip steel in the current period to polish the leveling working roller when the first strip steel roughness is larger than the second strip steel roughness so as to enable the leveling working roller to reach the target roughness in the next period;
and the leveling module is used for leveling the strip steel to be leveled in the next period based on the leveling working roller reaching the target roughness.
9. An electronic device comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of the method of any of claims 1-7.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any one of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310896301.6A CN116944249A (en) | 2023-07-20 | 2023-07-20 | Strip steel flattening method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310896301.6A CN116944249A (en) | 2023-07-20 | 2023-07-20 | Strip steel flattening method and device |
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| CN202310896301.6A Pending CN116944249A (en) | 2023-07-20 | 2023-07-20 | Strip steel flattening method and device |
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