Hot galvanizing alloying power setting method and related equipment

Abstract

The invention discloses a hot galvanizing alloying power setting method and related equipment, and relates to the technical field of hot galvanizing process control, and the method comprises the following steps: obtaining alloying parameters based on a target galvanizing alloying process database; initial strip steel parameters of the current strip steel type are obtained on the basis of the alloying parameters, so that the initial strip steel parameters are corrected, and target strip steel parameters are obtained; and the initial alloying power is obtained based on the target strip steel parameters, so that the alloying power set value is periodically corrected based on the initial alloying power in the target zinc plating alloying process. According to the method, an alloying mechanism and experience are combined, the influence of the thickness, width and speed of the strip steel on alloying power setting is considered, high-precision setting of the hot galvanizing alloying power is achieved, and the set value is calculated and sent along with the alloying process period, so that unmanned control over the alloying process is achieved, and the alloying efficiency is improved. And the problem of the proportion of under-alloy and over-alloy defects in the alloying process is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hot-dip galvanizing process control, and in particular to a hot-dip galvanizing alloying power setting method and related equipment. Background Art

[0002] Hot-dip galvanizing is an important metal surface treatment technology, which refers to the process of galvanizing the surface of the steel strip under the premise of low aluminum content zinc liquid, and then immediately diffusion annealing the pure zinc coating obtained by hot-dip galvanizing at 450℃ to 550℃ to obtain a zinc-iron alloy coating with an iron content between 7% and 15%. The factors affecting alloying mainly include the effective aluminum content of zinc liquid, zinc pot temperature, alloying temperature, strip speed, strip width, zinc layer thickness and substrate chemical composition.

[0003] The alloying process of modern hot-dip galvanizing production is to lead the strip from the zinc pot, wipe it with an air knife, and immediately enter the alloying heating furnace, heat it to a certain temperature, and keep it at this temperature for a period of time to complete the alloying process, and then enter the cooler to quickly cool down and stop the alloying reaction. The insulation process is the key process to complete the alloying process. Through high-frequency induction heating, the surface coating of the strip can be quickly heated to achieve the purpose of the alloying process. Among them, the high-frequency induction heating power is the core control parameter.

[0004] Deviations in the control of alloying heating power during hot-dip galvanizing alloying may lead to alloying defects such as over-alloying or under-alloying. The alloying process does not achieve online closed-loop control. The operator observes the surface of the moving strip through a stroboscope, and manually observes whether the alloying meets the requirements, and then manually intervenes in the alloying power. This alloying power control mode is difficult to meet the alloying control requirements. On the one hand, inappropriate alloying power settings will lead to a longer adjustment time to meet the alloying process requirements, and the out-of-tolerance length is longer; on the other hand, excessive manual intervention causes problems such as unstable adjustment process and unstable alloying quality.

[0005] Therefore, it is necessary to propose a hot-dip galvanizing power setting method to solve the above problems. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description of the Invention section. The Summary of the Invention section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] This application specifically includes the following aspects:

[0008] In a first aspect, the present application proposes a method for setting power of hot-dip galvanizing, comprising:

[0009] Acquire alloying parameters based on the target zinc-plating alloying process database; wherein the alloying parameters include a basic alloying parameter data table, a target alloying temperature data table, and a basic parameter correction coefficient data table;

[0010] Based on the alloying parameters, initial strip steel parameters of the current strip steel grade are obtained to correct the initial strip steel parameters to obtain target strip steel parameters; wherein the initial strip steel parameters include current strip steel width, current strip steel thickness and current strip steel running speed;

[0011] An initial alloying power is obtained based on the target strip parameters, so that during the target galvanizing alloying process, the alloying power setting value is periodically corrected based on the initial alloying power.

[0012] In a feasible implementation manner, the alloying basic parameter data table is used to store the strip parameters for setting the alloying power, the alloying target temperature data table is used to store the alloying target temperatures of different steel grades, and the basic parameter correction coefficient data table is used to store the correction coefficients of the strip width, strip thickness and current running speed of the strip for different steel grades.

[0013] In a feasible implementation manner, obtaining initial strip steel parameters of the current strip steel grade based on the alloying parameters to correct the initial strip steel parameters to obtain target strip steel parameters includes:

[0014] Through the basic parameter correction coefficient data table, the strip width correction coefficient, strip thickness correction coefficient and current strip running speed correction coefficient of the current strip are read based on the steel type of the current strip; wherein the strip width correction coefficient includes a strip reference width and a strip width correction coefficient; the strip thickness correction coefficient includes a strip reference thickness and a strip thickness correction coefficient; the current strip running speed correction coefficient includes a strip reference speed and a strip speed correction coefficient.

[0015] In a feasible implementation manner, the initial strip parameters of the current strip steel grade are obtained based on the alloying parameters to correct the initial strip parameters to obtain target strip parameters, further comprising: correcting the initial strip parameters based on the strip width correction coefficient of the current strip, the strip thickness correction coefficient and the current running speed correction coefficient of the strip, wherein:

[0016] The current strip width is modified specifically as follows:

[0017] w m =w b +w r ·(ww b );

[0018] Among them, w m is the corrected strip width in m; w b is the reference value of strip width, in m; w r is the strip width correction coefficient; w is the current basic width of the strip, in m;

[0019] The current strip thickness is modified specifically as follows:

[0020] h m =h b +h r ·(hh b );

[0021] Among them, h m is the corrected strip width in mm; h b is the reference value of strip width, in mm; h r is the strip width correction factor; h is the current basic strip width, in mm;

[0022] The current running speed of the strip is modified specifically as follows:

[0023] v m =v b +v r ·(vv b );

[0024] Among them, v m is the corrected current speed of the strip, in m / s; v b is the current speed reference value of the strip, in m / s; v r is the current speed correction coefficient of the strip; v is the current speed of the strip, in m / s.

[0025] In a feasible implementation, the initial alloying power is obtained based on the target strip steel parameter, so that during the target galvanizing alloying process, the alloying power setting value is periodically corrected based on the initial alloying power, including:

[0026] Based on the results of manual intervention, changes in steel grades and the results of the initial alloying power, the alloying power setting value is periodically corrected, and the corrected alloying power setting value is sent to the automatic control system; wherein the alloying power setting cycle is 500ms.

[0027] In a feasible implementation manner, the initial alloying power is obtained based on the target strip parameters, so that during the target galvanizing alloying process, the alloying power setting value is periodically corrected based on the initial alloying power, and further comprising: the correction formula of the alloying power setting value is:

[0028] p=p0+AdjL2;

[0029] Among them, p0 is the initial alloying power, p is the corrected alloying power setting value, and AdjL2 is the alloying power feedback adjustment amount; when the initial alloying power exceeds the upper limit of the preset threshold, the alloying power feedback adjustment amount is reduced by 20kW; when the initial alloying power exceeds the lower limit of the preset threshold, the alloying power feedback adjustment amount is increased by 20kW; when the initial alloying power is within the preset threshold, the alloying power feedback adjustment amount is set to 0kW; when the steel type changes, the alloying power feedback adjustment amount is set to 0kW; when manual intervention occurs on site, the alloying power feedback adjustment amount is set to 0kW.

[0030] In a feasible implementation, based on the manual intervention result, the steel grade change and the result of the initial alloying power, the alloying power setting value is periodically corrected, and the corrected alloying power setting value is sent to the automatic control system, including:

[0031] If the strip changes from thick to thin, the alloying power setting value for the thin strip will be issued after the weld passes through the induction heater for 3m;

[0032] If the strip changes from thin to thick, the alloying power setting value of the thick strip will be issued 3m before the weld reaches the induction heater.

[0033] In a second aspect, the present application proposes a hot dip galvanizing power setting system, comprising:

[0034] A parameter acquisition module, used to acquire alloying parameters based on a target zinc-plating alloying process database; wherein the alloying parameters include a basic alloying parameter data table, an alloying target temperature data table, and a basic parameter correction coefficient data table;

[0035] A parameter correction module, used for obtaining initial strip steel parameters of the current strip steel grade based on the alloying parameters, so as to correct the initial strip steel parameters and obtain target strip steel parameters; wherein the initial strip steel parameters include current strip steel width, current strip steel thickness and current strip steel running speed;

[0036] The alloying power setting module is used to obtain the initial alloying power based on the target strip parameters, so as to periodically correct the alloying power setting value based on the initial alloying power during the target galvanizing alloying process.

[0037] In a third aspect, an electronic device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to implement the steps of the hot-dip galvanizing power setting method as described in any one of the first aspects above when executing the computer program stored in the memory.

[0038] In a fourth aspect, the present application further proposes a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the hot-dip galvanizing power setting method of any one of the first aspects are implemented.

[0039] In summary, the tracking and recording method for product process quality control proposed in this application, for the setting of hot-dip galvanizing alloying power, adopts the ideas and methods combining theory and experience, establishes a hot-dip galvanizing alloying power calculation model, and realizes the high-precision setting of hot-dip galvanizing alloying power; under the premise of high-precision calculation of hot-dip galvanizing alloying power, through real-time collection of actual data, real-time alloying power calculation and real-time alloying power calculation result distribution, high-precision control of hot-dip galvanizing alloying power is realized. The problems of out-of-tolerance length and slow adjustment caused by manual intervention are avoided; the high-precision setting and high-precision control of hot-dip galvanizing alloying power realize the unmanned control of hot-dip galvanizing alloying power, and solve the problems of low setting accuracy and unstable production process caused by manual setting intervention.

[0040] The hot-dip galvanizing power setting method proposed in this application, and other advantages, objectives and features of this application will be partially reflected through the following description, and will also be partially understood by technicians in this field through research and practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present specification. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0042] Figure 1 A schematic diagram of a hot-dip galvanizing power setting method provided in an embodiment of the present application;

[0043] Figure 2 The overall flow chart of the cold rolling and hot dip galvanizing production line provided in the embodiment of the present application;

[0044] Figure 3 The alloying power setting result correction process provided in the embodiment of the present application;

[0045] Figure 4A schematic diagram of the functional modules of a hot-dip galvanizing power setting system provided in an embodiment of the present application;

[0046] Figure 5 A schematic diagram of the structure of an electronic device with hot-dip galvanizing power setting provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0048] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0049] The present application provides a method for setting hot-dip galvanizing alloying power, which adopts a combination of theoretical and empirical ideas and methods to calculate the hot-dip galvanizing alloying power, thereby achieving high-precision setting of the hot-dip galvanizing alloying power and unmanned control of the alloying process.

[0050] See also Figure 1 , which is a schematic diagram of a hot-dip galvanizing alloying power setting method provided in an embodiment of the present application, which may specifically include:

[0051] S110, acquiring alloying parameters based on a target zinc-plating alloying process database; wherein the alloying parameters include an alloying basic parameter data table, an alloying target temperature data table, and a basic parameter correction coefficient data table.

[0052] Exemplarily, the target zinc alloying process database stores a data table of basic alloying parameters, a data table of alloying target temperature, and a data table of basic parameter correction coefficients required for zinc alloying settings.

[0053] S120. Acquire initial strip parameters of the current strip steel grade based on the alloying parameters to correct the initial strip parameters to obtain target strip parameters; wherein the initial strip parameters include current strip width, current strip thickness and current strip running speed.

[0054] Exemplarily, the current strip steel grade, current strip steel width, current strip steel thickness and current strip steel running speed are read from the alloying basic parameter data table; the current strip steel alloying target temperature is read from the alloying target temperature data table according to the current strip steel grade; the current strip steel width, strip steel thickness and correction coefficient of the current strip steel running speed are read from the basic parameter correction coefficient data table according to the current strip steel grade, which are used to correct the initial strip steel parameters, that is, to correct the obtained strip steel width, strip steel thickness and current strip steel speed respectively.

[0055] S130, obtaining an initial alloying power based on the target strip parameters, so as to periodically correct the alloying power setting value based on the initial alloying power during the target galvanizing alloying process.

[0056] Exemplarily, the alloying power is calculated according to the energy conservation principle based on the corrected strip width, the corrected strip thickness and the corrected current strip speed. Further, the alloying power setting value is corrected according to the manual intervention, the steel grade change and the alloying result, and the alloying power calculation result is sent to the automatic control system to participate in the power control of the alloying induction heater. The alloying heating power is sent periodically and the sending position needs to be corrected.

[0057] In some examples, the alloying basic parameter data table is used to store strip parameters for setting alloying power, the alloying target temperature data table is used to store alloying target temperatures for different grades of steel, and the basic parameter correction coefficient data table is used to store correction coefficients for strip width, strip thickness and current running speed of strip for different grades of steel.

[0058] Exemplarily, the alloying basic parameter data table is mainly used to store the basic parameters of the strip used for alloying settings, including basic parameters such as strip width, strip thickness and current running speed of the strip; the strip width and strip thickness data in the alloying basic parameter data table are derived from the original strip data of the galvanizing production line process control system. The current strip speed data is derived from the actual measurement results of the on-site speed detection instrument. The alloying target temperatures of different steel grades in the alloying target temperature data table are determined based on on-site process experience and alloying process requirements. The strip width, strip thickness and current running speed correction coefficients of different steel grades in the basic parameter correction coefficient data table include two parts, namely the basic parameters and the correction coefficients.

[0059] In some examples, obtaining initial strip steel parameters of the current strip steel grade based on the alloying parameters to correct the initial strip steel parameters to obtain target strip steel parameters includes:

[0060] Through the basic parameter correction coefficient data table, the strip width correction coefficient, strip thickness correction coefficient and current strip running speed correction coefficient of the current strip are read based on the steel type of the current strip; wherein the strip width correction coefficient includes a strip reference width and a strip width correction coefficient; the strip thickness correction coefficient includes a strip reference thickness and a strip thickness correction coefficient; the current strip running speed correction coefficient includes a strip reference speed and a strip speed correction coefficient.

[0061] Exemplarily, the correction coefficients of the strip width, strip thickness and current running speed of the strip are read from the basic parameter correction coefficient data table according to the steel type of the current strip.

[0062] In some examples, the initial strip parameters of the current strip steel grade are obtained based on the alloying parameters to correct the initial strip parameters to obtain target strip parameters, and further include: correcting the initial strip parameters based on the strip width correction coefficient of the current strip, the strip thickness correction coefficient and the current running speed correction coefficient of the strip, wherein:

[0063] The current strip width is modified specifically as follows:

[0064] w m =w b +w r ·(ww b )(1);

[0065] Among them, w m is the corrected strip width in m; w b is the reference value of strip width, in m; w r is the strip width correction coefficient; w is the current basic width of the strip, in m;

[0066] The current strip thickness is modified specifically as follows:

[0067] h m =h b +h r ·(hh b )(2);

[0068] Among them, h m is the corrected strip width in mm; h b is the reference value of strip width, in mm; h ris the strip width correction factor; h is the current basic strip width, in mm;

[0069] The current running speed of the strip is modified specifically as follows:

[0070] v m =v b +v r ·(vv b )(3);

[0071] Among them, v m is the corrected current speed of the strip, in m / s; v b is the current speed reference value of the strip, in m / s; v r is the current speed correction coefficient of the strip; v is the current speed of the strip, in m / s.

[0072] Exemplarily, the obtained strip width, strip thickness and current strip speed are corrected respectively. Specifically, the strip width correction model is the above formula (1), the strip thickness correction model is the above formula (2), and the strip current running speed correction model is the above formula (3).

[0073] In some examples, an initial alloying power is obtained based on the target strip steel parameter, so that during the target galvannealing process, the alloying power setting value is periodically corrected based on the initial alloying power, including:

[0074] Based on the results of manual intervention, changes in steel grades and the results of the initial alloying power, the alloying power setting value is periodically corrected, and the corrected alloying power setting value is sent to the automatic control system; wherein the alloying power setting cycle is 500ms.

[0075] Exemplarily, the alloying power is calculated using the corrected strip width, the corrected strip thickness, and the corrected current running speed of the strip.

[0076] Specifically, first calculate the heat generated by electromagnetic induction heating:

[0077]

[0078] Among them, Q1 is the heat generated by the electromagnetic induction heater when the strip passes through the electromagnetic induction heater at the current speed, the unit is kJ; p is the electromagnetic induction heating power, the unit is kW; t is the time required for the strip to pass through the electromagnetic induction heater at the current speed, the unit is s; L is the length of the electromagnetic induction heater, the unit is m.

[0079] Then calculate the heat absorbed by the strip when it passes through the electromagnetic induction heater at the current speed:

[0080] Q2=w m ·h m ·L·ρ·(T set -T0)·C(5);

[0081] Where Q2 is the heat absorbed by the strip when it passes through the electromagnetic induction heater at the current speed, in kJ; ρ is the material density, in kg / m 3 ; T set is the alloying target temperature, in °C; T0 is the alloying initial temperature, in °C; C is the specific heat capacity of the material, in kJ / (kg·°C).

[0082] Finally, according to the principle of conservation of energy:

[0083]

[0084] According to the above formula (6), the power p of the electromagnetic induction heater can be obtained.

[0085] It should be noted that the material density ρ in this embodiment is taken as 7850 kg / m 3 , the specific heat capacity of the material is taken as 1kJ / (kg·℃), and the initial alloying temperature T is taken as 420℃.

[0086] Furthermore, since the parameters that affect the hot-dip galvanizing alloying power setting will continue to change during the production process, in order to meet the alloying process requirements, the alloying power setting module will periodically collect actual data on site to complete the alloying power setting. The cycle of data collection and alloying power setting is 500ms.

[0087] In some examples, the initial alloying power is obtained based on the target strip parameters, so that during the target galvannealing process, the alloying power setting value is periodically corrected based on the initial alloying power, and the correction formula of the alloying power setting value is:

[0088] p=p0+AdjL2(7);

[0089] Among them, p0 is the initial alloying power, p is the corrected alloying power setting value, and AdjL2 is the alloying power feedback adjustment amount; when the initial alloying power exceeds the upper limit of the preset threshold, the alloying power feedback adjustment amount is reduced by 20kW; when the initial alloying power exceeds the lower limit of the preset threshold, the alloying power feedback adjustment amount is increased by 20kW; when the initial alloying power is within the preset threshold, the alloying power feedback adjustment amount is set to 0kW; when the steel type changes, the alloying power manual adjustment amount is set to 0kW; when manual intervention occurs on site, the alloying power feedback adjustment amount is set to 0kW.

[0090] Exemplarily, the alloying power setting value is corrected by the above formula (7) according to the manual intervention, steel grade change and alloying result.

[0091] In some examples, based on the manual intervention results, the steel grade change and the initial alloying power result, the alloying power setting value is periodically corrected, and the corrected alloying power setting value is sent to the automatic control system, including:

[0092] If the strip changes from thick to thin, the alloying power setting value for the thin strip will be issued after the weld passes through the induction heater for 3m;

[0093] If the strip changes from thin to thick, the alloying power setting value of the thick strip will be issued 3m before the weld reaches the induction heater.

[0094] Exemplarily, according to the control demand of the alloying heating power, the alloying power calculation result is periodically sent to the automatic control system to participate in the power control of the alloying induction heater.

[0095] Furthermore, in the hot-dip galvanizing production process, the strip head needs to be prevented from being under-alloyed. When the thickness specification changes, the position of the alloying power is optimized according to the different thickness changes, so as to avoid under-alloying. That is, when the strip changes from thick to thin, the alloying power setting value of the thin strip is delayed, and the alloying power setting value of the thin strip is issued 3m after the weld passes the induction heater; when the strip changes from thin to thick, the alloying power setting value of the thick strip is issued in advance, and the alloying power setting value of the thick strip is issued 3m before the weld reaches the induction heater.

[0096] The parameters that affect the power setting of hot-dip galvanizing will continue to change during the production process. In order to meet the process requirements of alloying, the setting result sending module will send the alloying power setting results of the periodic calculation to the control system in a timely manner. The sending cycle is the same as the calculation cycle, both of which are 500ms.

[0097] In summary, the hot-dip galvanizing alloying power setting method provided in this application adopts a combination of theory and experience to establish a hot-dip galvanizing alloying power calculation model, and in particular, the influence coefficients of strip thickness, width, and speed on alloying power setting are considered in the alloying power calculation model. Through the functions of galvanizing alloying process database, basic parameter reading and processing, alloying target temperature reading, basic parameter correction, alloying power setting, alloying power setting result correction, and alloying power setting result distribution, high-precision setting of hot-dip galvanizing alloying power is achieved, and the set value is calculated and sent as the alloying process cycle, thereby realizing unmanned control of the alloying process.

[0098] The technical solution of the present application is further described in detail below through specific embodiments.

[0099] The main parameters of the cold-rolled hot-dip galvanizing process selected in the specific implementation case of this application are: strip thickness range: 0.40-2.50mm; strip width range: 850-1850mm; coating thickness range: 30-225g / m 2 .

[0100] The alloying process of this production line does not achieve online closed-loop control. The operator observes the surface of the moving strip through a stroboscope, manually observes whether the alloying meets the requirements, and then manually intervenes in the alloying power. This alloying power control mode is difficult to meet the alloying control requirements. On the one hand, inappropriate alloying power settings will lead to a long adjustment time to meet the alloying process requirements, and the out-of-tolerance length is long; on the other hand, too much manual intervention causes problems such as unstable adjustment process and unstable alloying quality.

[0101] For the hot-dip galvanizing process of the production line, the application of a hot-dip galvanizing power setting method provided by this application on the example cold-rolled hot-dip galvanizing production line is shown in the overall process. Figure 2 shown.

[0102] Step 1, basic parameter reading and processing: reading data from the alloying basic parameter data table at a cycle of 500 ms. Specifically, the main data processing objects in the hot-dip galvanizing basic parameter reading and processing are shown in Table 1 below.

[0103] Serial number Data Objects unit Instance Data 1 Steel Type [-] Z0GGTZ 2 width [m] 1.276 3 thickness [mm] 1.479 4 Running speed [m / s] 1.367

[0104] Table 1

[0105] Step 2, alloying target temperature reading: read the alloying target temperature from the alloying target temperature data table at a cycle of 500ms according to the alloying target temperature of the current strip steel grade. Among them, the alloying target temperature corresponding to the steel grade Z0GGTZPC is 472°C.

[0106] Step 3, basic parameter correction coefficient reading: read the correction coefficients of the current strip width, strip thickness and current running speed of the strip from the basic parameter correction coefficient data table according to the current strip steel grade at a cycle of 500ms, and use them to correct the basic parameters. The basic parameter correction coefficients corresponding to steel grades Z0GGTZPC are shown in Table 2 below.

[0107]

[0108] Table 2

[0109] Step 4, basic parameter correction: correct the obtained strip width, strip thickness and current strip speed respectively, and the correction results are shown in Table 3 below:

[0110] Serial number Data Objects unit Data before correction Corrected data 1 Steel Type [-] Z0GGTZ Z0GGTZ 2 width [m] 1.276 1.208 3 thickness [mm] 1.479 1.096 4 Running speed [m / s] 1.367 1.433

[0111] Table 3

[0112] Step 5, alloying power setting: using the above alloying basic parameter correction model to obtain the corrected strip width, corrected strip thickness and corrected current strip speed, the alloying power is calculated to be 691.09 kW based on the energy conservation principle.

[0113] Step 6, set value correction: according to the manual intervention, steel grade change and alloying results, the alloying power set value is corrected. The specific correction process and logic are as follows: Figure 3 shown.

[0114] Step 7, set the result to be sent: send the calculation result of alloying heating power to the automatic control system periodically to participate in the power control of alloying induction heater. The sending cycle of alloying heating power is based on the data reading cycle and alloying power calculation cycle. When the thickness specification changes, in order to prevent under-alloying, optimize the position of alloying power sending according to different thickness changes.

[0115] Through the above steps, high-precision setting of hot-dip galvanizing alloying power is achieved, and the set value is calculated and sent along with the alloying process cycle, thereby realizing unmanned control of the alloying process.

[0116] It should be noted that the above embodiments are only the best examples and are not limitations on the implementation methods of the present application.

[0117] Furthermore, the present application also proposes a hot-dip galvanizing power setting system, which is applied to any of the above-mentioned hot-dip galvanizing power setting methods. Figure 4 As shown, this is a functional module schematic diagram of a hot-dip galvanizing power setting system proposed in this application, including:

[0118] The parameter acquisition module 21 is used to acquire alloying parameters based on the target zinc-plating alloying process database; wherein the alloying parameters include a basic alloying parameter data table, a target alloying temperature data table, and a basic parameter correction coefficient data table;

[0119] A parameter correction module 22, used for obtaining initial strip steel parameters of the current strip steel grade based on the alloying parameters, so as to correct the initial strip steel parameters and obtain target strip steel parameters; wherein the initial strip steel parameters include the current strip steel width, the current strip steel thickness and the current running speed of the strip steel;

[0120] The alloying power setting module 23 is used to obtain the initial alloying power based on the target strip parameters, so as to periodically correct the alloying power setting value based on the initial alloying power during the target galvanizing alloying process.

[0121] like Figure 5 As shown, an embodiment of the present application also provides an electronic device 300, including a processor 310, a memory 320, and a computer program 321 stored in the memory 320 and executable on the processor, and when the processor 310 executes the computer program 321, the steps of any method of setting the power of hot-dip galvanizing are implemented.

[0122] Since the electronic device introduced in this embodiment is a device used to implement a hot-dip galvannealing power setting method in the embodiment of the present application, based on the method introduced in the embodiment of the present application, the technical personnel in this field can understand the specific implementation mode of the electronic device of the present embodiment and its various variations. Therefore, how the electronic device implements the method in the embodiment of the present application is not introduced in detail here. As long as the equipment used by the technical personnel in this field to implement the method in the embodiment of the present application is within the scope of protection of this application.

[0123] In the specific implementation process, when the computer program 321 is executed by the processor, it can achieve Figure 1 Any implementation manner in the corresponding embodiments.

[0124] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-readable program code.

[0126] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0127] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0128] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0129] The embodiment of the present application also provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device executes the process of the hot-dip galvanizing power setting method.

[0130] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0131] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0132] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0133] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0134] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0135] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0136] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0137] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0138] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A method for setting power of hot-dip galvanizing, characterized in that: include: Acquire alloying parameters based on the target zinc-plating alloying process database; wherein the alloying parameters include a basic alloying parameter data table, a target alloying temperature data table, and a basic parameter correction coefficient data table; Based on the alloying parameters, initial strip steel parameters of the current strip steel grade are obtained to correct the initial strip steel parameters to obtain target strip steel parameters; wherein the initial strip steel parameters include current strip steel width, current strip steel thickness and current strip steel running speed; An initial alloying power is obtained based on the target strip parameters, so that during the target galvanizing alloying process, the alloying power setting value is periodically corrected based on the initial alloying power.

2. The hot-dip galvanizing power setting method according to claim 1, characterized in that: The alloying basic parameter data table is used to store the strip parameters for setting the alloying power, the alloying target temperature data table is used to store the alloying target temperatures of different steel grades, and the basic parameter correction coefficient data table is used to store the correction coefficients of the strip width, strip thickness and current running speed of the strip for different steel grades.

3. The hot-dip galvanizing power setting method according to claim 1, characterized in that: Acquiring initial strip steel parameters of the current strip steel grade based on the alloying parameters to correct the initial strip steel parameters to obtain target strip steel parameters, including: Through the basic parameter correction coefficient data table, the strip width correction coefficient, strip thickness correction coefficient and current strip running speed correction coefficient of the current strip are read based on the steel type of the current strip; wherein the strip width correction coefficient includes a strip reference width and a strip width correction coefficient; the strip thickness correction coefficient includes a strip reference thickness and a strip thickness correction coefficient; the current strip running speed correction coefficient includes a strip reference speed and a strip speed correction coefficient.

4. The hot-dip galvanizing power setting method according to claim 3, characterized in that: Based on the alloying parameters, initial strip parameters of the current strip steel grade are obtained to correct the initial strip parameters to obtain target strip parameters, further comprising: based on the strip width correction coefficient of the current strip steel, the strip thickness correction coefficient and the current running speed correction coefficient of the strip steel, the initial strip parameters are corrected, wherein: The current strip width is modified specifically as follows: In m =in b +in r ·(ww b ); Among them, w m is the corrected strip width in m; w b is the reference value of strip width, in m; w r is the strip width correction coefficient; w is the current basic strip width, in m; The current strip thickness is modified specifically as follows: h m =h b +h r ·(h-h b ); Among them, h m is the corrected strip width in mm; h b is the reference value of strip width, in mm; h r is the strip width correction factor; h is the current basic strip width, in mm; The current running speed of the strip is modified specifically as follows: v m =v b +v r ·(vv b ); Among them, v m is the corrected current speed of the strip, in m / s; v b is the current speed reference value of the strip, in m / s; v r is the current speed correction coefficient of the strip; v is the current speed of the strip, in m / s.

5. The hot-dip galvanizing power setting method according to claim 1, characterized in that: The initial alloying power is obtained based on the target strip steel parameter, so that during the target galvanizing alloying process, the alloying power setting value is periodically corrected based on the initial alloying power, including: Based on the results of manual intervention, changes in steel grades and the results of the initial alloying power, the alloying power setting value is periodically corrected, and the corrected alloying power setting value is sent to the automatic control system; wherein the alloying power setting cycle is 500ms.

6. The hot-dip galvanizing power setting method according to claim 5, characterized in that: The initial alloying power is obtained based on the target strip parameters, so that during the target galvannealing process, the alloying power setting value is periodically corrected based on the initial alloying power, and the correction formula of the alloying power setting value is: p=p0+AdjL2; Among them, p0 is the initial alloying power, p is the corrected alloying power setting value, and AdjL2 is the alloying power feedback adjustment amount; when the initial alloying power exceeds the upper limit of the preset threshold, the alloying power feedback adjustment amount is reduced by 20kW; when the initial alloying power exceeds the lower limit of the preset threshold, the alloying power feedback adjustment amount is increased by 20kW; when the initial alloying power is within the preset threshold, the alloying power feedback adjustment amount is set to 0kW; when the steel type changes, the alloying power feedback adjustment amount is set to 0kW; when manual intervention occurs on site, the alloying power feedback adjustment amount is set to 0kW.

7. The hot-dip galvanizing power setting method according to claim 5, characterized in that: Based on the manual intervention result, the steel grade change and the result of the initial alloying power, the alloying power setting value is periodically corrected, and the corrected alloying power setting value is sent to the automatic control system, including: If the strip changes from thick to thin, the alloying power setting value for the thin strip will be issued after the weld passes through the induction heater for 3m; If the strip changes from thin to thick, the alloying power setting value of the thick strip will be issued 3m before the weld reaches the induction heater.

8. A hot dip galvanizing power setting system, characterized in that: include: A parameter acquisition module, used to acquire alloying parameters based on a target zinc-plating alloying process database; wherein the alloying parameters include a basic alloying parameter data table, an alloying target temperature data table, and a basic parameter correction coefficient data table; A parameter correction module, used for obtaining initial strip steel parameters of the current strip steel grade based on the alloying parameters, so as to correct the initial strip steel parameters and obtain target strip steel parameters; wherein the initial strip steel parameters include current strip steel width, current strip steel thickness and current strip steel running speed; The alloying power setting module is used to obtain the initial alloying power based on the target strip parameters, so as to periodically correct the alloying power setting value based on the initial alloying power during the target galvanizing alloying process.

9. An electronic device, comprising: A memory and a processor, wherein the processor is used to implement the steps of the hot-dip galvanizing power setting method as described in any one of claims 1 to 7 when executing the computer program stored in the memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the hot-dip galvanizing power setting method according to any one of claims 1 to 7 are implemented.

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