CN109940047B - Method and device for cooperative control of silicon steel size - Google Patents
Method and device for cooperative control of silicon steel size Download PDFInfo
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- CN109940047B CN109940047B CN201910241917.3A CN201910241917A CN109940047B CN 109940047 B CN109940047 B CN 109940047B CN 201910241917 A CN201910241917 A CN 201910241917A CN 109940047 B CN109940047 B CN 109940047B
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 167
- 239000010959 steel Substances 0.000 claims abstract description 167
- 238000009966 trimming Methods 0.000 claims abstract description 108
- 238000005097 cold rolling Methods 0.000 claims abstract description 65
- 238000005098 hot rolling Methods 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000005096 rolling process Methods 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 27
- 238000005520 cutting process Methods 0.000 claims description 19
- 238000010008 shearing Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013000 roll bending Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
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Abstract
The invention discloses a method and a device for cooperative control of silicon steel size, which comprises the following steps: obtaining the width of the strip steel of an order in a hot rolling plan; controlling the edge width tolerance according to the width of the strip steel of the order; obtaining a width curve of the hot-rolled strip steel; controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel; obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel; controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel; obtaining detection data of the hot-rolling convexity instrument; and controlling the outline of the silicon steel according to the detection data. The width cooperative control and the contour cooperative control are realized, and the silicon steel size cooperative control is achieved, so that the problem that the feed-forward control is not available in the prior art for trimming narrow gauge and cold rolling transverse thickness difference in the silicon steel production process is solved. The technical effects of improving the stability of silicon steel production and the size level of finished products are achieved.
Description
Technical Field
The application relates to the technical field of rolling processes, in particular to a method and a device for cooperatively controlling the size of silicon steel.
Background
The non-oriented silicon steel is mainly used as iron cores of motors, generators and transformers, the thickness specifications are mainly 0.35 mm, 0.50 mm and 0.65mm, and the thickness tolerance requirement is +/-10 mu m.
The size index is one of the key indexes of the plate and the strip in the production and organization process of the silicon steel. The 1450 acid continuous rolling unit is mainly used for producing non-oriented silicon steel, and the cold rolling efficiency is reduced due to the fact that trimming and narrow cutting occur in the production process.
The problems of narrow trimming and cold rolling lateral thickness difference in the production process of silicon steel and no feedforward control exist in the prior art.
Disclosure of Invention
The embodiment of the application provides a method and a device for cooperative control of silicon steel size, and aims to solve the problem that in the prior art, the feed-forward control is not available in the processes of trimming narrow gauge and cold rolling transverse thickness difference in the silicon steel production process. The technical effects of improving the stability of silicon steel production and the size level of finished products are achieved.
In order to solve the above problem, in a first aspect, an embodiment of the present application provides a method for cooperative control of silicon steel dimensions, the method including: obtaining the width of the strip steel of an order in a hot rolling plan; controlling the edge width tolerance according to the width of the strip steel of the order; obtaining a width curve of the hot-rolled strip steel; controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel; obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel; controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel; obtaining detection data of the hot-rolling convexity instrument; and controlling the outline of the silicon steel according to the detection data.
Preferably, the controlling the edge width tolerance according to the width of the ordered strip steel includes: obtaining the design amount of the trimming roll material; judging whether the order needs trimming rolling in the cold rolling process or not according to the design quantity of the trimming coil material; if the order requires trim rolling in cold rolling, the hot rolling width tolerance is controlled to [5, 20] mm.
Preferably, after the step of judging whether the order needs trimming rolling in cold rolling according to the design amount of the trimming coil material, the method further includes: if the order does not require trim rolling in cold rolling, the hot rolling width tolerance is controlled to [0, 20] mm.
Preferably, the obtaining of the design amount of the trimming roll material comprises: obtaining the target width of the hot-rolled strip steel; and obtaining the design amount of the trimming coil material according to the width of the order strip steel and the target width of the hot rolling strip steel.
Preferably, the controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel includes: according to the width curve of the hot-rolled strip steel, obtaining the minimum width and length position of the strip steel of each roll of hot-rolled strip steel; obtaining the minimum width of the strip steel; obtaining the edge cutting width of the strip steel; obtaining the minimum trimming amount of the strip steel according to the minimum width of the strip steel and the trimming width; if the order needs trimming rolling in cold rolling, when the minimum trimming amount is 10-16mm, reducing the trimming speed of the corresponding position to the threading speed for low-speed shearing; and when the minimum trimming amount is less than or equal to the minimum trimming amount capability of the disc shear, acquiring alarm instruction information, and increasing the trimming amount to 10-50 mm.
Preferably, the controlling the silicon steel order requirement according to the end user requirement and the thickness of the finished silicon steel comprises: and controlling the requirement of the end user to be that the stacking thickness of the stator is more than or equal to 100 sheets and the stacking thickness tolerance is less than or equal to 0.8mm according to the requirement of the end user and the thickness of the finished silicon steel, and arranging the strip steel to be rolled in the non-final stage of the rolling period of the rack.
Preferably, the controlling the profile of the silicon steel according to the detection data includes: according to the detection data, obtaining the C15 convexity full-length average value and the hit rate, and the C25 convexity full-length average value and the hit rate of each roll of hot rolled strip steel; if the order needs trimming rolling in cold rolling, performing transverse thickness difference feed-forward control according to the C25 convexity full-length average value and the hit rate; and if the order does not need edge cutting rolling in cold rolling, performing lateral thickness difference feed-forward control according to the C15 convexity full-length average value and the hit rate.
In a second aspect, the present application provides an apparatus for cooperatively controlling silicon steel dimensions, the apparatus includes:
the first obtaining unit is used for obtaining the width of the order strip steel in the hot rolling plan;
the first control unit is used for controlling the edge width tolerance according to the width of the order strip steel;
a second obtaining unit for obtaining a hot-rolled strip width curve;
the second control unit is used for controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel;
a third obtaining unit, configured to obtain an end user requirement of the order in the hot rolling plan and a thickness of finished silicon steel;
a third control unit for controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel;
a fourth obtaining unit for obtaining detection data of the hot rolling crown gauge;
and the fourth control unit is used for controlling the outline of the silicon steel according to the detection data.
Preferably, the first control unit includes:
a fifth obtaining unit, configured to obtain a design amount of the trim coil material;
the first judging unit is used for judging whether the order needs trimming rolling in cold rolling according to the design amount of the trimming coil material;
a fifth control unit for controlling the hot rolling width tolerance to [5, 20] mm if the order requires trim rolling in cold rolling.
Preferably, the first judging unit includes:
a sixth control unit for controlling the hot rolling width tolerance to [0, 20] mm if the order does not require trim rolling in cold rolling.
Preferably, the fifth obtaining unit includes:
a sixth obtaining unit for obtaining a target width of the hot rolled strip;
and the seventh obtaining unit is used for obtaining the design amount of the trimming coil material according to the width of the order strip steel and the target width of the hot-rolled strip steel.
Preferably, the second control unit includes:
an eighth obtaining unit, configured to obtain a minimum strip width and length position of each roll of hot rolled strip steel according to the hot rolled strip steel width curve;
a ninth obtaining unit, configured to obtain a minimum strip width of the strip steel;
a tenth obtaining unit, configured to obtain the trimming width of the strip steel;
an eleventh obtaining unit, configured to obtain a minimum trimming amount of the strip steel according to a minimum strip steel width of the strip steel and the trimming width;
a first reducing unit, wherein the first reducing unit is used for reducing the trimming speed of the corresponding position to the threading speed low-speed shearing when the minimum trimming amount is 10-16mm if the order requires trimming rolling in the cold rolling;
and the twelfth obtaining unit is used for obtaining the alarm instruction information when the minimum trimming amount is less than or equal to the minimum trimming amount capacity of the circle shear, and increasing the trimming amount to 10-50 mm.
Preferably, the third control unit includes:
and the seventh control unit is used for controlling the stator stack thickness to be more than or equal to 100 sheets according to the end user requirement and the thickness of the finished silicon steel, and arranging the strip steel to be rolled in the non-final stage of the rolling period of the rack when the stack thickness tolerance is less than or equal to 0.8 mm.
Preferably, the fourth control unit includes:
a thirteenth obtaining unit, configured to obtain, according to the detection data, a C15 convexity full-length mean value and a hit rate, and a C25 convexity full-length mean value and a hit rate of each roll of hot-rolled strip steel;
the eighth control unit is used for performing transverse thickness difference feed-forward control according to the C25 convexity full-length average value and the hit rate if the order needs trimming rolling in cold rolling;
a ninth control unit, configured to perform lateral thickness difference feed-forward control according to the full length mean and hit rate of the C15 crown if the order does not require edge cutting rolling in cold rolling.
In a third aspect, an embodiment of the present application further provides an apparatus for cooperatively controlling silicon steel dimensions, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the following steps when executing the program:
obtaining the width of the strip steel of an order in a hot rolling plan;
controlling the edge width tolerance according to the width of the strip steel of the order;
obtaining a width curve of the hot-rolled strip steel;
controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel;
obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel;
controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel;
obtaining detection data of the hot-rolling convexity instrument;
and controlling the outline of the silicon steel according to the detection data.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and the program, when executed by a processor, implements the following steps:
obtaining the width of the strip steel of an order in a hot rolling plan;
controlling the edge width tolerance according to the width of the strip steel of the order;
obtaining a width curve of the hot-rolled strip steel;
controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel;
obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel;
controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel;
obtaining detection data of the hot-rolling convexity instrument;
and controlling the outline of the silicon steel according to the detection data.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the application provides a method and a device for cooperative control of silicon steel size, and the method comprises the following steps: obtaining the width of the strip steel of an order in a hot rolling plan; controlling the edge width tolerance according to the width of the strip steel of the order; obtaining a width curve of the hot-rolled strip steel; controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel; obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel; controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel; obtaining detection data of the hot-rolling convexity instrument; and controlling the outline of the silicon steel according to the detection data. The width cooperative control and the contour cooperative control are realized, and the silicon steel size cooperative control is achieved, so that the problem that the feed-forward control is not available in the prior art for trimming narrow gauge and cold rolling transverse thickness difference in the silicon steel production process is solved. The technical effects of improving the stability of silicon steel production and the size level of finished products are achieved.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
FIG. 1 is a schematic flow chart of a silicon steel size cooperative control method according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an apparatus for cooperative control of silicon steel dimensions according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another apparatus for cooperative control of silicon steel dimensions according to an embodiment of the present invention.
Description of reference numerals: a first obtaining unit 11, a first control unit 12, a second obtaining unit 13, a second control unit 14, a third obtaining unit 15, a third control unit 16, a fourth obtaining unit 17, a fourth control unit 18, a bus 300, a receiver 301, a processor 302, a transmitter 303, a memory 304, a bus interface 306.
Detailed Description
The embodiment of the application provides a method and a device for cooperative control of silicon steel size, which are used for solving the technical problem that in the prior art, the feed-forward control is not available in the processes of trimming narrow gauge and cold rolling transverse thickness difference in the silicon steel production process.
In order to solve the technical problems, the technical scheme provided by the application has the following general idea: obtaining the width of the strip steel of an order in a hot rolling plan; controlling the edge width tolerance according to the width of the strip steel of the order; obtaining a width curve of the hot-rolled strip steel; controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel; obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel; controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel; obtaining detection data of the hot-rolling convexity instrument; and controlling the outline of the silicon steel according to the detection data. The width cooperative control and the contour cooperative control are realized, the silicon steel size cooperative control is achieved, and the technical effects of improving the stability of silicon steel production and improving the size level of finished products are achieved.
The technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
Example one
Fig. 1 is a schematic flow chart of a silicon steel size cooperative control method in an embodiment of the present invention, and as shown in fig. 1, the method includes:
step 110: and obtaining the width of the strip steel ordered in the hot rolling plan.
Specifically, the width of the ordered strip steel is the width of the strip steel to be purchased in batch by the customer, and the size of the strip steel should meet the specification of the dimension specification (extracted from GB/T709-2006) of hot rolled steel plates in table. The width of the steel strip can be any size of 50mm or 10mm times, and steel strips with other sizes can be supplied through negotiation of supply and demand parties according to the requirement of a customer.
Step 120: and controlling the margin width tolerance according to the width of the strip steel of the order.
Further, the controlling the edge width tolerance according to the width of the order strip steel comprises: obtaining the design amount of the trimming roll material; judging whether the order needs trimming rolling in the cold rolling process or not according to the design quantity of the trimming coil material; if the order requires trim rolling in cold rolling, the hot rolling width tolerance is controlled to [5, 20] mm.
Specifically, the design amount of the trimming coil material is required to obtain a target width of the hot-rolled strip steel, which is set according to the width of the order strip steel, and generally speaking, the target width of the strip steel is a few millimeters wider than the width of the order strip steel; obtaining design quantity of a trimming coil material according to the width of the order strip steel and the target width of the hot rolling strip steel, namely subtracting the width of the order strip steel from the target width of the hot rolling strip steel to obtain the design quantity of the trimming coil material, judging whether the order needs trimming rolling in cold rolling according to the design quantity of the trimming coil material, and controlling the tolerance of the hot rolling width to be [5, 20] mm if the order needs trimming rolling in the cold rolling.
Further, the determining whether the order needs trimming rolling in cold rolling according to the design amount of the trimming coil material further includes: if the order does not require trim rolling in cold rolling, the hot rolling width tolerance is controlled to [0, 20] mm.
Specifically, if the order does not require the edge trim rolling in the cold rolling, the edge trim rolling, i.e., the burr rolling is not required, and if the order is the burr rolling, the hot rolling width tolerance is controlled to [0, 20] mm, thereby achieving the control of the edge trim width tolerance.
Step 130: and obtaining a width curve of the hot-rolled strip steel.
Specifically, the wide edge of the strip may have unevenness, that is, the edge may have a radian, which is referred to as a width curve in the embodiment of the present application, and the cold rolling head and tail cut amount needs to be removed when obtaining the hot rolling width curve.
Step 140: and controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel.
Further, the controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel comprises the following steps: according to the width curve of the hot-rolled strip steel, obtaining the minimum width and length position of the strip steel of each roll of hot-rolled strip steel; obtaining the minimum width of the strip steel; obtaining the edge cutting width of the strip steel; obtaining the minimum trimming amount of the strip steel according to the minimum width of the strip steel and the trimming width; if the order needs trimming rolling in cold rolling, when the minimum trimming amount is 10-16mm, reducing the trimming speed of the corresponding position to the threading speed for low-speed shearing; and when the minimum trimming amount is less than or equal to the minimum trimming amount capability of the disc shear, acquiring alarm instruction information, and increasing the trimming amount to 10-50 mm.
Specifically, the minimum width and the length position of each roll of hot rolled strip steel are obtained according to the width curve of the hot rolled strip steel, the minimum width and the length position are sent to a cold rolling plan through a three-level system, if the order needs trimming and rolling in the cold rolling, when the minimum trimming amount is 10-16mm, the trimming speed of the corresponding position is reduced to the low speed of the threading speed for shearing, for example, the target width of the hot rolled strip steel is 1236mm, the minimum width is 1232mm, and the minimum width is 150m away from the head of the hot rolled roll; the cold-rolled trim width was 1220mm, the calculated minimum trim amount (minimum width-trim width) was 12mm, 10mm < calculated minimum trim amount <16mm, and therefore the trim speed was reduced to 20mpm low-speed shearing at the corresponding length position.
When the minimum trimming amount is less than or equal to the minimum trimming amount capacity of the circle shear, the system sends out an alarm instruction, and the trimming amount needs to be increased to any value of 10-50mm, wherein the trimming amount is increased to 16mm in a preferred embodiment, for example, the target width of the hot-rolled strip steel is 1236mm, the minimum width is 1229mm, and the minimum width is 150m away from the head of the hot-rolled coil; the cold rolling edge cutting width is 1220mm, the minimum edge cutting amount (minimum width-edge cutting width) is calculated to be 9mm, the minimum edge cutting amount is calculated to be less than 10mm, therefore, the cold rolling plan alarms that the edge cutting amount needs to be increased to 16mm, namely, the edge cutting width =1229-16=1213 mm. Thereby realizing the minimum width control of the strip steel.
Step 150: and obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel.
Specifically, the end user requirement of the order in the hot rolling plan may be a requirement finally determined in the customer order, such as the quantity, size, model and the like of the silicon steel, and the thickness of the finished silicon steel is the thickness of the finished silicon steel.
Step 160: and controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel.
Further, the controlling the silicon steel order requirement according to the end user requirement and the thickness of the finished silicon steel comprises: and controlling the requirement of the end user to be that the stacking thickness of the stator is more than or equal to 100 sheets and the stacking thickness tolerance is less than or equal to 0.8mm according to the requirement of the end user and the thickness of the finished silicon steel, and arranging the strip steel to be rolled in the non-final stage of the rolling period of the rack.
Specifically, scheduling control is carried out according to the requirements of an end user and the thickness of a finished product, when the use requirements of the end user are that the stack thickness of the stator is more than or equal to 100 sheets and the stack thickness tolerance is less than or equal to 0.8mm, the non-end stage of the roll period of the F5-F7 frame is arranged for rolling, and the non-end stage of the roll period is the last 15 blocks of the roll changing period, so that the control of the order requirements is realized.
For example, the hot rolling plan shows that a certain end user of an order has a finished product thickness of 0.498mm, the user use requirement is that the stator stack thickness is 120 sheets and the stack thickness tolerance is less than or equal to 0.7mm, the order is arranged to be rolled at the non-final stage of the roll period of the F5-F7 frames, the roll changing period of the hot rolled silicon steel is 60 blocks, the order is arranged in 4-45 blocks of the roll period, wherein the first 3 blocks are hot roll transition materials, and a good profile is ensured.
Step 170: and obtaining detection data of the hot rolling convexity instrument.
Step 180: and controlling the outline of the silicon steel according to the detection data.
Further, the controlling the profile of the silicon steel according to the detection data includes: according to the detection data, obtaining the C15 convexity full-length average value and the hit rate, and the C25 convexity full-length average value and the hit rate of each roll of hot rolled strip steel; if the order needs trimming rolling in cold rolling, performing transverse thickness difference feed-forward control according to the C25 convexity full-length average value and the hit rate; and if the order does not need edge cutting rolling in cold rolling, performing lateral thickness difference feed-forward control according to the C15 convexity full-length average value and the hit rate.
Specifically, the detection data specifically includes:
the convexity of C15 is the sum of the thickness of 15mm from the working side edge part and the thickness of 15mm from the transmission side edge part, wherein the thickness of the plate width center is-0.5 times of the thickness;
the convexity of C25 is the sum of the thickness of 25mm from the working side edge part and 25mm from the transmission side edge part, wherein the thickness of the plate width center is-0.5 times of the thickness;
the average value of the total length of the C15 convexity is sigma (length of C15 convexity)/the total length of the strip steel;
the average value of the total length of the C25 convexity is sigma (length of C25 convexity)/the total length of the strip steel;
the C15 convexity hit rate is sigma (C15 convexity length)/full length of the strip steel, wherein the C15 convexity is less than or equal to 35 um;
the C25 convexity hit rate is sigma (C25 convexity length)/full length of the strip steel, wherein the C25 convexity is less than or equal to 35 um;
specifically, the order needs trimming rolling in cold rolling, and transverse thickness difference feed-forward control is carried out according to the C25 convexity full-length average value and the hit rate, otherwise, in the case of cold-rolling burr rolling, transverse thickness difference feed-forward control is carried out according to the C15 convexity full-length average value and the hit rate. The control principle is as follows: when the average value of the convexity full length is less than or equal to 30um, controlling according to the setting; when the average value of the total length of the crown is 30-40 um or the hit rate is less than 60%, the roll bending force of the working roll for 1 pass and 2 passes of cold rolling is set to be increased by 2 tons, and the negative roll shifting amount of the working roll is set to be increased by 5 mm; when the average value of the convexity total length is more than or equal to 40um, the cold rolling edge cutting rolling is carried out, the edge cutting amount, namely the hot rolling target width-the cold rolling edge cutting width is 30mm, and therefore the outline control of the strip steel is realized.
For example, in cold-rolling rough edge rolling, the C15 convexity full-length average value of the hot-rolled strip steel is 36um, and the hit rate is 21%; the roll bending force of the working rolls of the cold rolling 1 pass and the cold rolling 2 passes is respectively increased from 20 tons and 19 tons to 22 tons and 21 tons, and the negative roll shifting amount of the working rolls is respectively increased from-75 mm, -70mm to-80 mm, -75 mm. In cold-rolling rough edge rolling, the C15 convexity full-length average value of the hot-rolled strip steel is 42um, and the hit rate is 0.5 percent; cold-rolling and trimming, and the amount of trimming (hot-rolling target width-cold-rolling trimming width) =30 mm.
The embodiment of the application realizes consistent control management of the silicon steel size, reduces the incidence rate of cold rolling trimming narrow gauge, realizes feed-forward control of the transverse thickness difference, improves the level of the transverse thickness difference of the silicon steel, and promotes the satisfaction degree of users.
Example two
Based on the same inventive concept as the method for cooperatively controlling the size of silicon steel in the previous embodiment, the present invention further provides a device for cooperatively controlling the size of silicon steel, as shown in fig. 2, the device comprises:
the first obtaining unit is used for obtaining the width of the order strip steel in the hot rolling plan;
the first control unit is used for controlling the edge width tolerance according to the width of the order strip steel;
a second obtaining unit for obtaining a hot-rolled strip width curve;
the second control unit is used for controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel;
a third obtaining unit, configured to obtain an end user requirement of the order in the hot rolling plan and a thickness of finished silicon steel;
a third control unit for controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel;
a fourth obtaining unit for obtaining detection data of the hot rolling crown gauge;
and the fourth control unit is used for controlling the outline of the silicon steel according to the detection data.
Further, the first control unit includes:
a fifth obtaining unit, configured to obtain a design amount of the trim coil material;
the first judging unit is used for judging whether the order needs trimming rolling in cold rolling according to the design amount of the trimming coil material;
a fifth control unit for controlling the hot rolling width tolerance to [5, 20] mm if the order requires trim rolling in cold rolling.
Further, the first judgment unit includes:
a sixth control unit for controlling the hot rolling width tolerance to [0, 20] mm if the order does not require trim rolling in cold rolling.
Further, the fifth obtaining unit includes:
a sixth obtaining unit for obtaining a target width of the hot rolled strip;
and the seventh obtaining unit is used for obtaining the design amount of the trimming coil material according to the width of the order strip steel and the target width of the hot-rolled strip steel.
Further, the second control unit includes:
an eighth obtaining unit, configured to obtain a minimum strip width and length position of each roll of hot rolled strip steel according to the hot rolled strip steel width curve;
a ninth obtaining unit, configured to obtain a minimum strip width of the strip steel;
a tenth obtaining unit, configured to obtain the trimming width of the strip steel;
an eleventh obtaining unit, configured to obtain a minimum trimming amount of the strip steel according to a minimum strip steel width of the strip steel and the trimming width;
a first reducing unit, wherein the first reducing unit is used for reducing the trimming speed of the corresponding position to the threading speed low-speed shearing when the minimum trimming amount is 10-16mm if the order requires trimming rolling in the cold rolling;
and the twelfth obtaining unit is used for obtaining the alarm instruction information when the minimum trimming amount is less than or equal to the minimum trimming amount capacity of the circle shear, and increasing the trimming amount to 10-50 mm.
Further, the third control unit includes:
and the seventh control unit is used for controlling the stator stack thickness to be more than or equal to 100 sheets according to the end user requirement and the thickness of the finished silicon steel, and arranging the strip steel to be rolled in the non-final stage of the rolling period of the rack when the stack thickness tolerance is less than or equal to 0.8 mm.
Further, the fourth control unit includes:
a thirteenth obtaining unit, configured to obtain, according to the detection data, a C15 convexity full-length mean value and a hit rate, and a C25 convexity full-length mean value and a hit rate of each roll of hot-rolled strip steel;
the eighth control unit is used for performing transverse thickness difference feed-forward control according to the C25 convexity full-length average value and the hit rate if the order needs trimming rolling in cold rolling;
a ninth control unit, configured to perform lateral thickness difference feed-forward control according to the full length mean and hit rate of the C15 crown if the order does not require edge cutting rolling in cold rolling.
Various modifications and embodiments of the method for cooperative control of silicon steel dimension in the first embodiment of fig. 1 are also applicable to the apparatus for cooperative control of silicon steel dimension in the present embodiment, and the implementation of the method for cooperative control of silicon steel dimension in the present embodiment will be apparent to those skilled in the art from the foregoing detailed description of the method for cooperative control of silicon steel dimension, and therefore, for the sake of brevity of the description, detailed description thereof will not be provided herein.
EXAMPLE III
Based on the same inventive concept as the method for cooperative control of silicon steel dimensions in the previous embodiment, the present invention further provides a device for cooperative control of silicon steel dimensions, which has a computer program stored thereon, and when the program is executed by a processor, the program realizes the steps of any one of the methods for cooperative control of silicon steel dimensions.
Where in fig. 3 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 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 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
Example four
Based on the same inventive concept as the method for silicon steel dimension cooperative control in the foregoing embodiments, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements the following steps:
obtaining the width of the strip steel of an order in a hot rolling plan; controlling the edge width tolerance according to the width of the strip steel of the order; obtaining a width curve of the hot-rolled strip steel; controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel; obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel; controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel; obtaining detection data of the hot-rolling convexity instrument; and controlling the outline of the silicon steel according to the detection data.
In a specific implementation, when the program is executed by a processor, any method step in the first embodiment may be further implemented.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the application provides a method and a device for cooperative control of silicon steel size, and the method comprises the following steps: obtaining the width of the strip steel of an order in a hot rolling plan; controlling the edge width tolerance according to the width of the strip steel of the order; obtaining a width curve of the hot-rolled strip steel; controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel; obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel; controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel; obtaining detection data of the hot-rolling convexity instrument; and controlling the outline of the silicon steel according to the detection data. The width cooperative control and the contour cooperative control are realized, and the silicon steel size cooperative control is achieved, so that the problem that the feed-forward control is not available in the prior art for trimming narrow gauge and cold rolling transverse thickness difference in the silicon steel production process is solved. The technical effects of improving the stability of silicon steel production and the size level of finished products are achieved.
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. Therefore, it is intended that the appended claims be interpreted as including 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 in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (5)
1. A method for cooperatively controlling the size of silicon steel is characterized by comprising the following steps:
obtaining the width of the strip steel of an order in a hot rolling plan;
controlling the edge width tolerance according to the width of the strip steel of the order;
obtaining a width curve of the hot-rolled strip steel;
controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel;
obtaining the end user requirement of the order in the hot rolling plan and the thickness of the finished silicon steel;
controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel;
obtaining detection data of the hot-rolling convexity instrument;
controlling the outline of the silicon steel according to the detection data;
wherein, according to order belted steel width, edge width tolerance is controlled, include: obtaining the design amount of the trimming roll material; judging whether the order needs trimming rolling in the cold rolling process or not according to the design quantity of the trimming coil material; if the order requires edge cutting rolling in cold rolling, controlling the hot rolling width tolerance to be [5, 20] mm;
the step of controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel comprises the following steps: according to the width curve of the hot-rolled strip steel, obtaining the minimum width and length position of the strip steel of each roll of hot-rolled strip steel; obtaining the minimum width of the strip steel; obtaining the edge cutting width of the strip steel; obtaining the minimum trimming amount of the strip steel according to the minimum width of the strip steel and the trimming width; if the order needs trimming rolling in cold rolling, when the minimum trimming amount is 10-16mm, reducing the trimming speed of the corresponding position to the threading speed for low-speed shearing; when the minimum trimming amount is less than or equal to the minimum trimming amount capability of the circle shear, obtaining alarm instruction information, and increasing the trimming amount to 10-50 mm;
controlling the silicon steel order requirement according to the end user requirement and the thickness of the finished silicon steel, and the method comprises the following steps: controlling the requirement of the end user to be that the stator stacking thickness is more than or equal to 100 sheets and the stacking thickness tolerance is less than or equal to 0.8mm according to the requirement of the end user and the thickness of the finished silicon steel, and arranging the non-final rolling of the strip steel during the hot rolling of the roller period of the rack;
the controlling the contour of the silicon steel according to the detection data comprises: according to the detection data, obtaining the C15 convexity full-length average value and the hit rate, and the C25 convexity full-length average value and the hit rate of each roll of hot rolled strip steel; if the order needs trimming rolling in cold rolling, performing transverse thickness difference feed-forward control according to the C25 convexity full-length average value and the hit rate; if the order does not need trimming rolling in cold rolling, performing transverse thickness difference feed-forward control according to the C15 convexity full-length average value and the hit rate;
wherein the minimum trim amount = the minimum width-the trim width;
the length position is the position of the minimum width of the strip steel in the length direction of the strip steel.
2. The method of claim 1, wherein said determining whether said order requires trim rolling in cold rolling based on said trim coil material design amount further comprises:
if the order does not require trim rolling in cold rolling, the hot rolling width tolerance is controlled to [0, 20] mm.
3. The method of claim 1, wherein said obtaining a trim coil material design amount comprises:
obtaining the target width of the hot-rolled strip steel;
and obtaining the design amount of the trimming coil material according to the width of the order strip steel and the target width of the hot rolling strip steel.
4. An apparatus for cooperative control of silicon steel dimensions, the apparatus comprising:
the first obtaining unit is used for obtaining the width of the order strip steel in the hot rolling plan;
the first control unit is used for controlling the edge width tolerance according to the width of the order strip steel;
a second obtaining unit for obtaining a hot-rolled strip width curve;
the second control unit is used for controlling the minimum width of the strip steel according to the width curve of the hot-rolled strip steel;
a third obtaining unit, configured to obtain an end user requirement of the order in the hot rolling plan and a thickness of finished silicon steel;
a third control unit for controlling the order requirement of the silicon steel according to the requirement of the end user and the thickness of the finished silicon steel;
a fourth obtaining unit for obtaining detection data of the hot rolling crown gauge;
a fourth control unit for controlling the profile of the silicon steel according to the detection data;
wherein the first control unit includes: a fifth obtaining unit, configured to obtain a design amount of the trim coil material; the first judging unit is used for judging whether the order needs trimming rolling in cold rolling according to the design amount of the trimming coil material; a fifth control unit for controlling the hot rolling width tolerance to [5, 20] mm if the order requires trim rolling in cold rolling;
the second control unit includes: an eighth obtaining unit, configured to obtain a minimum strip width and length position of each roll of hot rolled strip steel according to the hot rolled strip steel width curve; a ninth obtaining unit, configured to obtain a minimum strip width of the strip steel; a tenth obtaining unit, configured to obtain the trimming width of the strip steel; an eleventh obtaining unit, configured to obtain a minimum trimming amount of the strip steel according to a minimum strip steel width of the strip steel and the trimming width; a first reducing unit, wherein the first reducing unit is used for reducing the trimming speed of the corresponding position to the threading speed low-speed shearing when the minimum trimming amount is 10-16mm if the order requires trimming rolling in the cold rolling; a twelfth obtaining unit, configured to obtain alarm instruction information and increase the trimming amount to 10-50mm when the minimum trimming amount is less than or equal to the minimum trimming amount capability of the circle shear;
the third control unit includes: the seventh control unit is used for controlling the stator stack thickness to be more than or equal to 100 sheets according to the end user requirement and the thickness of the finished silicon steel, and arranging the non-final rolling of the strip steel during the hot rolling of the frame roller stage when the stack thickness tolerance is less than or equal to 0.8 mm;
the fourth control unit includes: a thirteenth obtaining unit, configured to obtain, according to the detection data, a C15 convexity full-length mean value and a hit rate, and a C25 convexity full-length mean value and a hit rate of each roll of hot-rolled strip steel; the eighth control unit is used for performing transverse thickness difference feed-forward control according to the C25 convexity full-length average value and the hit rate if the order needs trimming rolling in cold rolling; a ninth control unit, configured to perform lateral thickness difference feed-forward control according to the full-length mean value and hit rate of the C15 crown if the order does not require edge cutting rolling in cold rolling;
wherein the minimum trim amount = the minimum width-the trim width;
the length position is the position of the minimum width of the strip steel in the length direction of the strip steel.
5. The apparatus for silicon steel dimension cooperative control as set forth in claim 4, wherein the fifth obtaining unit comprises:
a sixth obtaining unit for obtaining a target width of the hot rolled strip;
and the seventh obtaining unit is used for obtaining the design amount of the trimming coil material according to the width of the order strip steel and the target width of the hot-rolled strip steel.
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| CN112122354B (en) * | 2020-08-31 | 2022-08-02 | 首钢智新迁安电磁材料有限公司 | System for dynamically designing fixed length |
| CN112893478A (en) * | 2021-03-08 | 2021-06-04 | 唐山钢铁集团有限责任公司 | Hot-rolled steel coil nominal width derivation method considering both cold rolling yield and production stability |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458869A (en) * | 2000-09-29 | 2003-11-26 | 纽科尔公司 | Method of providing steel strip to order |
| CN101025801A (en) * | 2006-02-23 | 2007-08-29 | 上海宝信软件股份有限公司 | Data exchange method for metallurgical enterprise production management system |
| JP2011215873A (en) * | 2010-03-31 | 2011-10-27 | Jfe Steel Corp | Method, apparatus and system for preparing manufacturing lot |
| CN103279843A (en) * | 2013-06-13 | 2013-09-04 | 北京首钢自动化信息技术有限公司 | Quality design system used for cross-factory production organization |
| CN104084426A (en) * | 2014-07-02 | 2014-10-08 | 济钢集团有限公司 | Cold rolled product plate type control system based on hot rolling process control |
| CN104778542A (en) * | 2015-03-31 | 2015-07-15 | 北京首钢自动化信息技术有限公司 | Rapid quality design system and method based on history order modeling |
| CN108405628A (en) * | 2018-03-13 | 2018-08-17 | 武汉钢铁有限公司 | A kind of hot rolling non-orientation silicon steel optimum section contour outline control method |
| CN109465297A (en) * | 2018-11-02 | 2019-03-15 | 首钢智新迁安电磁材料有限公司 | A kind of method and device promoting high grade non-oriented silicon steel transverse thickness difference |
-
2019
- 2019-03-28 CN CN201910241917.3A patent/CN109940047B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458869A (en) * | 2000-09-29 | 2003-11-26 | 纽科尔公司 | Method of providing steel strip to order |
| CN101025801A (en) * | 2006-02-23 | 2007-08-29 | 上海宝信软件股份有限公司 | Data exchange method for metallurgical enterprise production management system |
| JP2011215873A (en) * | 2010-03-31 | 2011-10-27 | Jfe Steel Corp | Method, apparatus and system for preparing manufacturing lot |
| CN103279843A (en) * | 2013-06-13 | 2013-09-04 | 北京首钢自动化信息技术有限公司 | Quality design system used for cross-factory production organization |
| CN104084426A (en) * | 2014-07-02 | 2014-10-08 | 济钢集团有限公司 | Cold rolled product plate type control system based on hot rolling process control |
| CN104778542A (en) * | 2015-03-31 | 2015-07-15 | 北京首钢自动化信息技术有限公司 | Rapid quality design system and method based on history order modeling |
| CN108405628A (en) * | 2018-03-13 | 2018-08-17 | 武汉钢铁有限公司 | A kind of hot rolling non-orientation silicon steel optimum section contour outline control method |
| CN109465297A (en) * | 2018-11-02 | 2019-03-15 | 首钢智新迁安电磁材料有限公司 | A kind of method and device promoting high grade non-oriented silicon steel transverse thickness difference |
Non-Patent Citations (3)
| Title |
|---|
| 冷轧无取向硅钢横向厚度差控制技术;熊文涛等;《钢铁》;20160131;第51卷(第1期);65-69 * |
| 基于"MMS + PES"架构的冷轧MES 及应用;王良和;《冶金自动化》;20140331;第38卷(第2期);21-27 * |
| 无取向电工钢横向同板差产生的原因及控制方法;王华等;《四川冶金》;20170630;第39卷(第3期);34-36 * |
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