High-quality special steel rolling method and device, electronic equipment and storage medium

Abstract

The invention provides a high-quality special steel rolling method and device, electronic equipment and a storage medium, and relates to the technical field of rolling, and the high-quality special steel rolling method comprises the steps that the rolling speed of each rolling mill is obtained according to rolling parameter information and rolling mill speed correction coefficients, the rolling mill speed correction coefficient comprises a speed correction coefficient of each roughing mill and a speed correction coefficient of each finishing mill; the rolling force is obtained through the rolling parameter information, and the rolling force is used for representing the pressure applied to the steel by the rolling mills; the rolling moment and the rolling power are obtained according to the rolling force, and the rolling moment is used for representing the moment when each rolling mill completes the rolling process; and controlling each rolling mill according to the rolling speed, the rolling force, the rolling moment and the rolling power to obtain a high-quality special steel rolled product. According to the method, the quality of the finally obtained high-quality special steel is improved by controlling the parameters influencing the product quality in the rolling process.

Description

Technical Field

[0001] The present invention relates to the field of rolling technology, and in particular to a high-quality steel rolling method, device, electronic equipment and storage medium. Background Art

[0002] High-quality steel refers to a special steel with excellent properties, usually used in applications that require high strength, wear resistance or corrosion resistance. High-quality steel generally includes high-alloy steel, high-strength steel and special steel, etc. These steels have improved their performance by adding different alloy elements and undergoing specific heat treatment processes. The rolling process refers to the process of processing steel billets into steel of the required shape and size through rolling. The existing high-quality steel has uneven product quality due to unstable parameter control during the rolling process. Summary of the invention

[0003] The present invention aims to solve at least one of the above problems.

[0004] In order to solve the above problems, the present invention provides a high-quality steel rolling method, device, electronic equipment and storage medium.

[0005] In a first aspect, the present invention provides a high-quality steel rolling method, comprising: obtaining the rolling speed of each rolling mill according to rolling parameter information and a rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes a speed correction coefficient of each rough rolling mill and a speed correction coefficient of each finishing rolling mill; The rolling force is obtained through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; According to the rolling force, rolling torque and rolling power are obtained, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The rolling mills are controlled according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

[0006] Optionally, obtaining the rolling force through the rolling parameter information includes: Obtaining a stress state influence coefficient and a rolling temperature according to the rolling parameter information; Deformation resistance is obtained by deformation speed, deformation degree and rolling temperature; The rolling force is obtained by the rolling parameter information, the stress state influence coefficient and the deformation resistance, wherein the rolling force is: , in, is the rolling force, B is the bandwidth, is the contact arc length, is the stress state influence coefficient, and K is the deformation resistance.

[0007] Optionally, obtaining the state influence coefficient according to the rolling parameter information includes: When the contact arc length is greater than or equal to the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the first state influence coefficient model, wherein the first state influence coefficient model is: , in, is the stress state influence coefficient, is the reduction rate, R is the radius of the mill working roll, is the strip export thickness, is the thickness of the neutral plane; When the contact arc length is less than the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the second state influence coefficient model, wherein the second state influence coefficient model is: , in, is the contact arc length, is the strip entrance thickness.

[0008] Optionally, the deformation resistance is obtained by the deformation speed, the deformation degree and the rolling temperature, including: The deformation resistance is obtained by the deformation speed, the deformation degree and the rolling temperature, wherein the deformation resistance is: , in, is the deformation resistance, is the rolling temperature, is the strain rate, For strain.

[0009] Optionally, obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient includes: Obtaining the original rolling speed of each rolling mill according to the rolling parameter information; The original rolling speed is corrected by the rolling speed correction coefficient to obtain the rolling speed of each rolling mill, wherein the rolling speed is: , in, is the casting speed of the continuous casting machine, is the continuous casting billet thickness, is the rolling speed of the i-th roughing mill, is the outlet thickness of the i-th rough rolling mill, is the rolling speed of the i-th finishing mill, is the outlet thickness of the i-th finishing mill, is the speed correction coefficient of the roughing mill of the i-th stand, is the speed correction coefficient of the i-th finishing mill.

[0010] Optionally, obtaining the rolling torque and the rolling power according to the rolling force includes: The rolling torque is obtained according to the rolling force, wherein the rolling torque is: , in, is the rolling torque, is the rolling force, is the force arm coefficient, is the contact arc length; The rolling power is obtained according to the rolling force and the rolling torque, wherein the rolling power is: , in, is the rolling power, is the rolling torque, and n is the neutral plane roll speed.

[0011] Optionally, the rolling time is obtained by the rolling parameter information and the rolling speed, wherein the rolling time is: , in, is the rolling time, H is the continuous casting billet thickness, L is the continuous casting billet length, is the strip export thickness, is the rolling speed; The gap time is obtained by the rolling parameter information and the rolling speed, wherein the gap time is: , in, is the gap time, is the rack spacing, is the rolling speed.

[0012] In a second aspect, the present invention provides a high-quality steel rolling device, comprising: a rolling speed acquisition module, used to obtain the rolling speed of each rolling mill according to rolling parameter information and a rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes a speed correction coefficient of each rough rolling mill and a speed correction coefficient of each finishing rolling mill; A rolling force acquisition module, which obtains the rolling force through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; A rolling torque and rolling power acquisition module, used to obtain the rolling torque and rolling power according to the rolling force, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The high-quality steel rolled product acquisition module is used to control each rolling mill according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

[0013] In a third aspect, the present invention provides an electronic device, including a memory and a processor; The memory is used to store computer programs; The processor is used to implement the high-quality steel rolling method as described in the first aspect when executing the computer program.

[0014] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the high-quality steel rolling method as described in the first aspect is implemented.

[0015] The beneficial effects of the high-quality steel rolling method, device, electronic equipment and storage medium of the present invention are: Since there will be a certain deviation between the calculated rolling speed and the actual rolling speed under the influence of friction, etc., the rolling speed of each rolling mill is obtained according to the rolling parameter information and the rolling mill speed correction coefficient, and the obtained rolling speed is more in line with the actual rolling speed, and the rolling process can be adjusted according to the actual rolling speed. The rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing rolling mill, taking into account the different influence coefficients of different rolling mills. The rolling time and the gap time can be obtained through the rolling parameter information and the rolling speed, the rolling force can be obtained through the rolling parameter information, and the rolling force can be obtained through the rolling parameter information, so that the rolling force is more accurate. The rolling torque and rolling power are obtained according to the rolling force, and the rolling mills are controlled according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products. By controlling the parameters that affect the product quality during the rolling process, the quality of the high-quality steel finally obtained is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic flow chart of a high-quality steel rolling method according to an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a high-quality steel rolling device according to an embodiment of the present invention; Figure 3 The figure is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0018] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0019] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0020] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0021] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0022] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a high-quality steel rolling method, device, electronic equipment and storage medium.

[0023] like Figure 1 As shown, a high-quality steel rolling method provided by an embodiment of the present invention comprises: Step 110, obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes the speed correction coefficient of each roughing mill and the speed correction coefficient of each finishing mill.

[0024] Specifically, the rolling parameter information includes steel plate parameter information and rolling mill equipment parameter information, wherein the steel plate parameter information includes the width of the input continuous casting billet, the thickness of the continuous casting billet, the thickness of the finishing rolling outlet, the elastic modulus, the density of the rolled piece, the specific heat of the rolled piece, the Boltzmann constant, the blackness, and the thickness of the neutral plane, and the rolling mill equipment parameter information includes the diameter of the input working roll, the arm coefficient, the billet drawing speed, the spacing between the roughing mill frames, the spacing between the roughing mill and the finishing mill, the spacing between the finishing mill frames, the contact arc length, and the neutral angle roll speed. Based on the steel plate input parameter information and the rolling mill equipment parameter information, the outlet thickness of the rolled piece of each frame is allocated.

[0025] Step 120: Obtain the rolling force through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill on the steel.

[0026] Specifically, the influence coefficient of the stress state is obtained by considering the influence of the friction force, and the temperature at each stage of rolling is obtained, so as to calculate the deformation resistance, and then the rolling force is obtained through the rolling parameter information.

[0027] Step 130, obtaining rolling torque and rolling power according to the rolling force, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process.

[0028] Specifically, rolling force determines rolling torque. When the workpiece is not subjected to other external forces, the resultant force of the normal force and friction force acting on the two rolls must be equal in magnitude and opposite in direction, and act on a straight line. Rolling power is related to rolling torque and neutral plane roll speed.

[0029] Step 140, controlling each rolling mill according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

[0030] Specifically, by monitoring the rolling process through the rolling speed, the rolling process can be adjusted to increase the speed as much as possible without affecting the subsequent processes. By calculating the rolling speed, the rolling speed range can be reasonably determined to ensure the stability and efficiency of the rolling process. The rolling force is accurately calculated in combination with relevant parameters. The torque required in the rolling process is calculated to ensure that the drive system of the rolling mill can meet the requirements. The power required for the rolling process is calculated so as to reasonably configure the power system of the rolling mill. By comprehensively considering multiple parameters such as rolling speed, rolling force, rolling torque and rolling power, a rolling procedure is established, and high-quality special steel rolled products are obtained through the rolling procedure.

[0031] In this embodiment, since there will be a certain deviation between the calculated rolling speed and the actual rolling speed under the influence of friction, etc., the rolling speed of each rolling mill is obtained according to the rolling parameter information and the rolling mill speed correction coefficient, and the obtained rolling speed is more in line with the actual rolling speed, and the rolling process can be adjusted according to the actual rolling speed. The rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing mill, taking into account the different influence coefficients of different rolling mills. The rolling time and the gap time can be obtained through the rolling parameter information and the rolling speed, and the rolling force can be obtained through the rolling parameter information, so that the rolling force is more accurate. The rolling torque and rolling power are obtained according to the rolling force, and the rolling mills are controlled according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products. By controlling the parameters that affect the product quality during the rolling process, the quality of the high-quality steel finally obtained is improved.

[0032] Optionally, obtaining the rolling force through the rolling parameter information includes: Obtaining a stress state influence coefficient and a rolling temperature according to the rolling parameter information; Deformation resistance is obtained by deformation speed, deformation degree and rolling temperature; The rolling force is obtained by the rolling parameter information, the stress state influence coefficient and the deformation resistance, wherein the rolling force is: , in, is the rolling force, B is the bandwidth, is the contact arc length, is the stress state influence coefficient, and K is the deformation resistance.

[0033] Specifically, the resistance to metal plastic deformation is not only related to the chemical composition of the metal material, but also depends on the physical conditions of plastic deformation such as deformation temperature, deformation speed and deformation degree. The temperature of the rolled piece during the short-process rolling process is affected by air cooling radiation, high-pressure water descaling, low-pressure water spraying, roll conduction, etc. The rolling temperature includes the temperature drop caused by radiation, high-pressure water descaling, low-pressure water spraying cooling and contact conduction.

[0034] Radiation temperature drop: The radiation temperature drop of strip steel mainly occurs in the transportation process of billets, strips and strip steel. When the high-temperature rolled pieces stay in the air, they will continuously dissipate heat through radiation, causing temperature drop. At this time, there is also convection heat transfer, but the temperature drop caused by convection heat transfer is only about 5% of that caused by radiation. for: , in, is the temperature before cooling, ℃, is the blackness of the actual object, also known as emissivity ( <1), when the surface has a lot of iron oxide, it is 0.8, and the smooth surface just rolled is 0.55-0.65, is the radiation coefficient of an absolute black body, also known as the Stefan-Boltzmann constant, , C is the specific heat capacity, , G is the density of the steel plate, , is the cooling distance, m, is the strip speed, m / s.

[0035] High-pressure water descaling and temperature drop: Using high-pressure water flow to impact the surface of the billet (strip) to remove the oxide scale once (or twice) is the main method currently used. Since a large amount of high-pressure water flow contacts the surface of the billet, the rolled piece will experience a temperature drop. This heat loss belongs to the form of forced convection. The heat exchange process of forced convection is relatively complex. It is not only related to the billet temperature, the medium temperature and the thermophysical properties of the steel, but also to the flow state of the fluid. for: , Among them, the above formula attributes the influence of various influencing factors to middle, is the forced convection heat transfer coefficient, , is the descaling water temperature, ℃, is the length of the high-pressure water section, m.

[0036] Low-pressure water spray cooling temperature drop: Since water spray cooling is also a forced convection, the calculation formula is similar, but The low pressure water spray cooling temperature drop is different. for: , in, is the distance between racks, m, is the forced convection heat exchange coefficient between racks; .

[0037] Temperature drop caused by contact conduction: There are two contradictory thermal processes during rolling. One is the heat generated by the plastic deformation of the rolled piece during rolling, which causes the temperature rise. The second is the heat loss when the high-temperature workpiece contacts the low-temperature roll during rolling, which causes the temperature of the workpiece to drop. , The available heat balance can be derived: , , in, is the absorption efficiency, that is, the percentage of the deformation heat converted into heating of the rolled piece to the total deformation heat. is the heat conduction efficiency between the rolled piece and the roller, which is generally 0.48-0.55, and J1 is the thermal work equivalent, J1=9.81.

[0038] Among them, the temperature drop caused by contact conduction for , , in, is the contact heat transfer coefficient of the rolled product on each stand.

[0039] , , Among them, when the steel type is stainless steel, , is the average thickness of the strip steel per rack, mm.

[0040] Among them, K is determined by the chemical composition of the metal material and the physical conditions of deformation, that is, the metal deformation resistance of deformation temperature, deformation speed and deformation degree. , MPa. When the finished product thickness is less than 4.5mm or the rolled steel grade is not stainless steel, , where i is the rack number, otherwise .

[0041] Optionally, obtaining the stress state influence coefficient according to the rolling parameter information includes: When the contact arc length is greater than or equal to the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the first state influence coefficient model, wherein the first state influence coefficient model is: , in, is the stress state influence coefficient, is the reduction rate, R is the radius of the mill working roll, is the strip outlet thickness, is the thickness of the neutral plane; When the contact arc length is less than the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the second state influence coefficient model, wherein the second state influence coefficient model is: , in, is the contact arc length, is the strip entrance thickness.

[0042] In this optional embodiment, the influence coefficient model of the stress state caused by the friction force on the contact arc is as follows, and different ratios of the contact arc length and the average thickness are discussed separately to make the subsequent calculation of the rolling force more accurate.

[0043] Optionally, the deformation resistance is obtained by the deformation speed, the deformation degree and the rolling temperature, including: The deformation resistance is obtained by the deformation speed, the deformation degree and the rolling temperature, wherein the deformation resistance is: , in, is the deformation resistance, is the rolling temperature, is the strain rate, For strain.

[0044] Specifically, the resistance to plastic deformation of metal refers to the force per unit area required for the metal material to produce plastic deformation under uniaxial stress. Its magnitude is not only related to the chemical composition of the metal material, but also depends on the physical conditions of plastic deformation such as deformation temperature, deformation speed and deformation degree.

[0045] Optionally, obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient includes: Obtaining the original rolling speed of each rolling mill according to the rolling parameter information; The original rolling speed is corrected by the rolling speed correction coefficient to obtain the rolling speed of each rolling mill, wherein the rolling speed is: , in, is the casting speed of the continuous casting machine, is the continuous casting billet thickness, is the rolling speed of the i-th roughing mill, is the outlet thickness of the i-th rough rolling mill, is the rolling speed of the i-th finishing mill, is the outlet thickness of the i-th finishing mill, is the speed correction coefficient of the roughing mill of the i-th stand, is the speed correction coefficient of the i-th finishing mill.

[0046] In some specific embodiments, two roughing mills R1 and R2 and six finishing mills F1, F2, F3, F4, F5, and F6 are provided. The speed correction coefficient of the R1 stand is , speed correction factor of F1 frame The remaining racks are fitted in the same way, and the coefficients are , , , , , .

[0047] In this optional embodiment, the speed is corrected according to the speed correction coefficient of each roughing mill and the speed correction coefficient of each finishing mill, so that the obtained rolling speed is more consistent with the actual rolling speed.

[0048] Optionally, obtaining the rolling torque and the rolling power according to the rolling force includes: The rolling torque is obtained according to the rolling force, wherein the rolling torque is: , in, is the rolling torque, is the rolling force, is the force arm coefficient, is the contact arc length; The rolling power is obtained according to the rolling force and the rolling torque, wherein the rolling power is: , in, is the rolling power, is the rolling torque, and n is the neutral plane roll speed.

[0049] Specifically, is the arm coefficient, the roughing mill takes 0.4-0.48, and the finishing mill takes 0.39-0.44.

[0050] Optionally, it also includes: The rolling time is obtained by the rolling parameter information and the rolling speed, wherein the rolling time is: , in, is the rolling time, H is the continuous casting billet thickness, L is the continuous casting billet length, is the strip outlet thickness, is the rolling speed; The gap time is obtained by the rolling parameter information and the rolling speed, wherein the gap time is: , in, is the gap time, is the rack spacing, is the rolling speed.

[0051] Specifically, the rolling time is used to indicate the time taken by each rolling mill to complete the rolling process, and the gap time is used to indicate the time interval between adjacent rolling mills.

[0052] In some more specific embodiments, 65Mn spring steel is selected as the material, the continuous casting billet thickness is 93mm, the width is 1200mm, the finishing outlet thickness is 3.0mm, the elastic modulus is 210GPa, the Poisson's ratio is 0.3, the density is 7800kg / m3, the specific heat capacity is 691KJ / (kg·℃), and the Boltzmann constant is , blackness is 0.8, and furnace temperature is 1180℃.

[0053] The working roll diameter of the roughing mill is 850mm, the diameter of the F1-F3 working roll is 800mm, the diameter of the F4-F6 working roll is 600mm, the billet drawing speed is 5.0m / min, the spacing between the roughing mill frames is 4.5m, the spacing from the roughing mill to the finishing mill is 49.375m, and the spacing between the finishing mill frames is 4.4m.

[0054] Based on the above parameters, the exit thickness of each stand is allocated, and the rolling speed is determined based on the exit thickness, slab pulling speed and the speed correction coefficient of each stand. The calculation results are shown in Table 1.

[0055] Table 1 Rolling thickness and rolling speed

[0056] The rolling time and gap time are calculated based on the above rolling speed and the thickness of each stand. The calculation results of each stand are shown in Table 2.

[0057] The bite angle, neutral angle, neutral surface thickness, contact arc length and external friction stress state influence coefficient are calculated based on the inlet and outlet thickness of each stand and the diameter of the working roll and used for the calculation of rolling force. The friction stress state influence coefficient is shown in Table 2.

[0058] Table 2 Rolling time and interval schedule

[0059] Based on the steel plate input parameters and headless rolling equipment layout parameters, the air cooling temperature drop, descaling temperature drop, rack temperature drop, plastic deformation temperature rise, and temperature drop caused by contact conduction are calculated, and the temperature of each rolling stage is calculated.

[0060] The deformation resistance of the material is calculated based on the deformation temperature, deformation speed and deformation degree. The rolling force, rolling torque and rolling power of each rough rolling stand and each finishing rolling stand are calculated based on the contact arc length, bandwidth and deformation resistance.

[0061] like Figure 2 As shown, an embodiment of the present invention provides a high-quality steel rolling device, comprising: A rolling speed acquisition module 10, used to obtain the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing rolling mill; A rolling force acquisition module 20, used to obtain the rolling force through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; A rolling torque and rolling power acquisition module 30, used to obtain the rolling torque and rolling power according to the rolling force, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The high-quality steel rolled product acquisition module 40 is used to control each rolling mill according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain the high-quality steel rolled products.

[0062] The high-quality steel rolling device of this embodiment is used to implement the high-quality steel rolling method as described above. Its advantages over the prior art are the same as the advantages of the above-mentioned high-quality steel rolling method over the prior art, and will not be repeated here.

[0063] Optionally, the rolling force acquisition module 20 is specifically used to: obtain the stress state influence coefficient and the rolling temperature according to the rolling parameter information; Deformation resistance is obtained by deformation speed, deformation degree and rolling temperature; The rolling force is obtained by the rolling parameter information, the stress state influence coefficient and the deformation resistance, wherein the rolling force is: , in, is the rolling force, B is the bandwidth, is the contact arc length.

[0064] Optionally, the rolling force acquisition module 20 is specifically used to: when the contact arc length is greater than or equal to the average thickness of the rolled piece entrance and exit, obtain the stress state influence coefficient according to a first state influence coefficient model, wherein the first state influence coefficient model is: , in, is the stress state influence coefficient, is the reduction rate, R is the radius of the mill working roll, is the strip outlet thickness, is the thickness of the neutral plane; When the contact arc length is less than the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the second state influence coefficient model, wherein the second state influence coefficient model is: , in, is the contact arc length, is the strip entrance thickness.

[0065] Optionally, the rolling force acquisition module 20 is specifically used to obtain the deformation resistance according to the deformation speed, the deformation degree and the rolling temperature, wherein the deformation resistance is: , in, is the deformation resistance, is the rolling temperature, is the strain rate, For strain.

[0066] Optionally, the rolling speed acquisition module 10 is specifically used to: obtain the original rolling speed of each rolling mill according to the rolling parameter information; The original rolling speed is corrected by the rolling speed correction coefficient to obtain the rolling speed of each rolling mill, wherein the rolling speed is: , in, is the casting speed of the continuous casting machine, is the continuous casting billet thickness, is the rolling speed of the i-th roughing mill, is the outlet thickness of the i-th rough rolling mill, is the rolling speed of the i-th finishing mill, is the outlet thickness of the i-th finishing mill, is the speed correction coefficient of the roughing mill of the i-th stand, is the speed correction coefficient of the i-th finishing mill.

[0067] Optionally, the rolling torque and rolling power acquisition module 30 is specifically used to obtain the rolling torque according to the rolling force, wherein the rolling torque is: , in, is the rolling torque, is the rolling force, is the force arm coefficient, is the contact arc length; The rolling power is obtained according to the rolling force and the rolling torque, wherein the rolling power is: , in, is the rolling power, is the rolling torque, and n is the neutral plane roll speed.

[0068] Optionally, the high-quality steel rolling device further includes a rolling time and time interval acquisition module, and the rolling time and time interval acquisition module is used to obtain the rolling time through the rolling parameter information and the rolling speed, wherein the rolling time is: , in, is the rolling time, H is the continuous casting billet thickness, L is the continuous casting billet length, is the strip export thickness, is the rolling speed; The gap time is obtained by the rolling parameter information and the rolling speed, wherein the gap time is: , in, is the gap time, is the rack spacing, is the rolling speed.

[0069] like Figure 3 As shown, an electronic device 300 provided by an embodiment of the present invention includes a memory 310 and a processor 320; the memory 310 is used to store a computer program; the processor 320 is used to implement the high-quality steel rolling method as described above when executing the computer program.

[0070] In other words, an electronic device 300 includes a memory 310 and a processor 320 coupled to the memory 310; the memory 310 is configured to store a computer program; and the processor 320 is configured to perform the following operations when executing the computer program: Obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing rolling mill; The rolling force is obtained through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; According to the rolling force, rolling torque and rolling power are obtained, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The rolling mills are controlled according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

[0071] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the high-quality steel rolling method described above is implemented.

[0072] In other words, a non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor performs the following operations: Obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing rolling mill; The rolling force is obtained through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; According to the rolling force, rolling torque and rolling power are obtained, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The rolling mills are controlled according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

[0073] An electronic device 300 that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. The electronic device 300 is intended to represent various forms of digital electronic computer equipment, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device 300 can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples, and are not intended to limit the implementation of the present invention described and / or required herein.

[0074] The electronic device 300 includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for the operation of the device can also be stored. The computing unit, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0075] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present invention. In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0076] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A high-quality steel rolling method, characterized in that: include: Obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing rolling mill; The rolling force is obtained through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; According to the rolling force, rolling torque and rolling power are obtained, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The rolling mills are controlled according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

2. The high-quality steel rolling method according to claim 1, characterized in that: The step of obtaining the rolling force through the rolling parameter information includes: Obtaining a stress state influence coefficient and a rolling temperature according to the rolling parameter information; Deformation resistance is obtained by deformation speed, deformation degree and rolling temperature; The rolling force is obtained by the rolling parameter information, the stress state influence coefficient and the deformation resistance, wherein the rolling force is: ， in, is the rolling force, B is the bandwidth, is the contact arc length, is the stress state influence coefficient, and K is the deformation resistance.

3. The high-quality steel rolling method according to claim 2, characterized in that: The step of obtaining the stress state influence coefficient according to the rolling parameter information includes: When the contact arc length is greater than or equal to the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the first state influence coefficient model, wherein the first state influence coefficient model is: ， in, is the stress state influence coefficient, is the reduction rate, R is the radius of the mill working roll, is the strip outlet thickness, is the thickness of the neutral plane; When the contact arc length is less than the average thickness of the rolled piece entrance and exit, the stress state influence coefficient is obtained according to the second state influence coefficient model, wherein the second state influence coefficient model is: ， in, is the contact arc length, is the strip entrance thickness.

4. The high-quality steel rolling method according to claim 2, characterized in that: The deformation resistance is obtained by the deformation speed, deformation degree and rolling temperature, including: The deformation resistance is obtained by the deformation speed, the deformation degree and the rolling temperature, wherein the deformation resistance is: ， in, is the deformation resistance, is the rolling temperature, is the strain rate, For strain.

5. The high-quality steel rolling method according to claim 1, characterized in that: The step of obtaining the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient includes: Obtaining the original rolling speed of each rolling mill according to the rolling parameter information; The original rolling speed is corrected by the rolling speed correction coefficient to obtain the rolling speed of each rolling mill, wherein the rolling speed is: ， in, is the casting speed of the continuous casting machine, is the continuous casting billet thickness, is the rolling speed of the i-th roughing mill, is the outlet thickness of the i-th rough rolling mill, is the rolling speed of the i-th finishing mill, is the outlet thickness of the i-th finishing mill, is the speed correction coefficient of the roughing mill of the i-th stand, is the speed correction coefficient of the i-th finishing mill.

6. The high-quality steel rolling method according to claim 1, characterized in that: The step of obtaining the rolling torque and the rolling power according to the rolling force comprises: The rolling torque is obtained according to the rolling force, wherein the rolling torque is: ， in, is the rolling torque, is the rolling force, is the force arm coefficient, is the contact arc length; The rolling power is obtained according to the rolling force and the rolling torque, wherein the rolling power is: ， in, is the rolling power, is the rolling torque, and n is the neutral plane roll speed.

7. The high-quality steel rolling method according to claim 1, characterized in that: Also includes: The rolling time is obtained by the rolling parameter information and the rolling speed, wherein the rolling time is: ， in, is the rolling time, H is the continuous casting billet thickness, L is the continuous casting billet length, is the strip outlet thickness, is the rolling speed; The gap time is obtained by the rolling parameter information and the rolling speed, wherein the gap time is: ， in, is the gap time, is the rack spacing, is the rolling speed.

8. A high-quality steel rolling device, characterized in that: include: A rolling speed acquisition module, used to obtain the rolling speed of each rolling mill according to the rolling parameter information and the rolling mill speed correction coefficient, wherein the rolling mill speed correction coefficient includes the speed correction coefficient of each rough rolling mill and the speed correction coefficient of each finishing rolling mill; A rolling force acquisition module, which obtains the rolling force through the rolling parameter information, wherein the rolling force is used to represent the pressure applied by each rolling mill to the steel; A rolling torque and rolling power acquisition module, used to obtain the rolling torque and rolling power according to the rolling force, wherein the rolling torque is used to represent the torque of each rolling mill to complete the rolling process; The high-quality steel rolled product acquisition module is used to control each rolling mill according to the rolling speed, the rolling force, the rolling torque and the rolling power to obtain high-quality steel rolled products.

9. An electronic device, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is used to implement the high-quality steel rolling method as described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the high-quality steel rolling method as described in any one of claims 1 to 7 is implemented.

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