Production method of frame steel and related equipment

Abstract

The invention discloses a production method of frame steel and related equipment, relates to the field of metallurgical cold rolling, and mainly aims to solve the problem of lack of a more standardized process for production of the frame steel. The method comprises the following steps: setting tension of wet leveling unit equipment; the wet leveling unit is controlled to conduct leveling treatment on the steel coil to be treated based on the tension; and under the condition that the leveling treatment of the wet leveling unit is stably operated, the rolling force of the wet leveling unit is corrected. The method is used for the production process of the frame steel.

Description

Technical Field

[0001] The invention relates to the field of metallurgical cold rolling, and in particular to a production method of frame steel and related equipment. Background Art

[0002] Conductive frame steel is an important raw material for electronic components, involving the field of lead frame steel electroplating technology, especially the conductive steel sheet of high-density integrated circuit lead frame. With the improvement of industrial level, the demand for frame steel is also increasing. When producing conductive frame steel, surface roughness is one of the most important surface quality indicators of tin-plated substrates. Customers need stamping processing and are sensitive to plate shape and size. It has a great influence on the subsequent processing stamping performance, surface quality, and the bonding strength between the coating and the substrate. In addition, the plate shape requirements are also relatively high. This type of steel has a low carbon content and is prone to waves after rolling. The wave shape is relatively large, which is not conducive to subsequent processing. The smooth rolling process is also very important.

[0003] However, in the actual production process, if the original plate shape control and roughness control are not good, the customer will encounter difficulties in subsequent processing. It becomes very important to find an effective roughness control method. Summary of the invention

[0004] In view of the above problems, the present invention provides a method for producing frame steel and related equipment, the main purpose of which is to solve the problem of lack of a more standardized process for the production of frame steel.

[0005] In order to solve at least one of the above technical problems, in a first aspect, the present invention provides a method for producing frame steel, the method comprising:

[0006] Set the tension of the wet leveling unit equipment;

[0007] Controlling the wet leveling unit to level the steel coil to be processed based on the tension;

[0008] When the flattening process of the wet flattening mill is running stably, the rolling force of the wet flattening mill is corrected.

[0009] Optionally, the wet leveling machine group equipment includes a uncoiler, a first leveling machine, a frame, a second leveling machine and a coiler.

[0010] Optional,

[0011] The surface roughness of the working roll of the first leveler is 0.15 μm-0.25 μm.

[0012] The surface roughness of the working roll of the second leveling machine is 0.15 μm-0.25 μm.

[0013] Optionally, when the flattening process of the wet flattening mill is running stably, correcting the rolling force of the wet flattening mill comprises:

[0014] When the flattening process of the wet flattening mill group is running stably, the rolling forces of the first flattening mill and the second flattening mill are corrected.

[0015] Optionally, when the leveling process of the wet leveling mill group is running stably, correcting the rolling force of the first leveling mill and the second leveling mill includes:

[0016] When the leveling process of the wet leveling mill group is running stably, the rolling force of the first leveling mill is modified to MN-4.4MN, and the rolling force of the second leveling mill is modified to 1.8MN-2.2MN.

[0017] Optionally, the operating speed of the wet leveling unit equipment is 900M / MIN-1000M / MIN.

[0018] Optionally, the frame includes a first frame and a second frame, and the initial bending values ​​of the first frame and the second frame are 5%-10%.

[0019] The method further comprises:

[0020] In the case of normal operation, the bending roll value of the first stand is adjusted based on the shape of the steel coil at the outlet;

[0021] The bending value of the second stand is 20%-15%.

[0022] In a second aspect, an embodiment of the present invention further provides a production device for frame steel, comprising:

[0023] A setting unit, used for setting the tension of the wet leveling machine group equipment;

[0024] A processing unit, used for controlling the wet leveling unit to level the steel coil to be processed based on the tension;

[0025] The correction unit is used to correct the rolling force of the wet leveling mill when the leveling process of the wet leveling mill is running stably.

[0026] In order to achieve the above object, according to a third aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the above program is executed by a processor, the steps of the above-mentioned frame steel production method are implemented.

[0027] In order to achieve the above-mentioned purpose, according to the fourth aspect of the present invention, there is provided an electronic device, comprising at least one processor and at least one memory connected to the processor; wherein the above-mentioned processor is used to call the program instructions in the above-mentioned memory to execute the steps of the above-mentioned frame steel production method.

[0028] Through the above technical solution, the production method and related equipment of frame steel provided by the present invention solve the problem of lack of more standardized process for the production of frame steel by setting the tension of the wet leveling unit equipment; controlling the wet leveling unit to level the steel coil to be processed based on the tension; and correcting the rolling force of the wet leveling unit when the leveling process of the wet leveling unit is running stably. In the above solution, the wet leveling process is adopted, and the tension and rolling force of the wet leveling unit equipment are effectively controlled to standardize the production process, thereby optimizing the problem of lack of more standardized process for the production of frame steel.

[0029] Correspondingly, the frame steel production device, equipment and computer-readable storage medium provided by the embodiments of the present invention also have the above-mentioned technical effects.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 A schematic flow chart of a method for producing frame steel provided in an embodiment of the present invention is shown;

[0033] Figure 2 A schematic diagram of striping positions provided by an embodiment of the present invention is shown;

[0034] Figure 3 A schematic diagram of a plate shape measurement process provided by an embodiment of the present invention is shown;

[0035] Figure 4 A schematic diagram of a plate shape measurement result provided by an embodiment of the present invention is shown;

[0036] Figure 5 A schematic diagram of controlling the thickness of a tape head provided by an embodiment of the present invention is shown;

[0037] Figure 6 A schematic block diagram of the composition of a frame steel production device provided by an embodiment of the present invention is shown;

[0038] Figure 7 A schematic block diagram of the composition of electronic equipment for producing frame steel provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0039] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary 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 limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0040] In order to solve the problem of lack of a more standardized process for the production of frame steel, an embodiment of the present invention provides a method for producing frame steel, such as Figure 1 As shown, the method includes:

[0041] S101, setting the tension of the wet leveling unit equipment;

[0042] S102, controlling the wet leveling unit to level the steel coil to be processed based on the tension;

[0043] S103. When the flattening process of the wet flattening mill is running stably, correct the rolling force of the wet flattening mill.

[0044] By means of the above technical solution, the production method of frame steel provided by the present invention solves the problem that the production of frame steel lacks a more standardized process. The present invention sets the tension of the wet leveling unit equipment; controls the wet leveling unit to level the steel coil to be processed based on the tension; and corrects the rolling force of the wet leveling unit when the leveling process of the wet leveling unit is running stably. In the above solution, the wet leveling process is adopted, and the tension and rolling force of the wet leveling unit equipment are effectively controlled to standardize the production process, thereby optimizing the problem that the production of frame steel lacks a more standardized process.

[0045] In one embodiment, the wet leveling machine group equipment includes a decoiler, a first leveling machine, a frame, a second leveling machine and a coiler.

[0046] In one embodiment, the surface roughness of the working roll of the first leveling machine is 0.15 μm-0.25 μm, and the surface roughness of the working roll of the second leveling machine is 0.15 μm-0.25 μm.

[0047] This application controls the roughness of the counter roller to meet the grinding requirements. If the roughness is too low, rolling is difficult and it is easy to slip. If the roughness is too high, the strip roughness may exceed the upper limit of 0.2.

[0048] In one embodiment, when the leveling process of the wet leveling machine group is stably running, correcting the rolling force of the wet leveling machine group includes: when the leveling process of the wet leveling machine group is stably running, correcting the rolling forces of the first leveling machine and the second leveling machine.

[0049] The reduction rate of the first leveling machine is too large, mainly to reduce the thickness. The reduction rate of the second leveling machine is too small. The second leveling machine mainly controls the plate shape and corrects it to obtain a better plate shape.

[0050] In one embodiment, when the leveling process of the wet leveling machine group is stably running, the rolling forces of the first leveling machine and the second leveling machine are corrected, including: when the leveling process of the wet leveling machine group is stably running, the rolling force of the first leveling machine is corrected to 3MN-4.4MN, and the rolling force of the second leveling machine is corrected to 1.8MN-2.2MN.

[0051] If the rolling force is too large, rolling marks may appear or the material hardness may be abnormal. If it is too small, edge folds may appear and the plate shape may not be well controlled. The control of roughness is the process of roller matching, which can be achieved by using one or two stands in the 0.2+0.2 micron mode.

[0052] In one embodiment, the operating speed of the wet leveling unit equipment is 900M / MIN-1000M / MIN.

[0053] In one embodiment, the frame includes a first frame and a second frame, and the initial bending roll values ​​of the first frame and the second frame are 5%-10%. The method also includes: under normal operation, the bending roll value of the first frame is adjusted based on the plate shape of the exported steel coil; the bending roll value of the second frame is 20%-15%.

[0054] To reduce middle waves and rib waves, under normal operation, the bending roll value of the first frame is adjusted based on the shape of the steel coil at the outlet; the bending roll value of the second frame is 20%-15%.

[0055] Specifically, the plate shape measurement method of the frame steel is as follows: take a 1-meter-long sample and make two striping positions on the sample along the length direction, such as Figure 2-4 As shown, the first strip is 10mm for the edge, and the second strip is 50mm further stripped on the basis of the first strip. After stripping, when it is put back to the original position, due to the existence of wave shape, there will be side bending, that is, misalignment. If the side bending is ≤3mm, it is considered to meet the standard, otherwise it will be put on the flattening line for the second rolling.

[0056] Furthermore, the present application also includes: development of speed / roll gap tension coordinated control function: development of "low-speed speed adjustment, high-speed roll gap adjustment" tension control function, increasing rolling stability, reducing belt breakage and inability to speed up (originally speed adjustment, speed adjustment response was slow: the incoming material thickness deviation of 4μm (about 2.5%) caused the tension fluctuation to exceed 50%, and the roll gap adjustment of the present application has the control characteristics of fast response and small fluctuation).

[0057] Furthermore, if Figure 5 As shown, this application uses the lead thickness control technology and develops a thickness prediction model to solve the problem of thickness monitoring when the thickness gauge at the low-speed section outlet cannot be put into use, and develops a low-speed section thickness control strategy: the low-speed section cannot control the thickness and is optimized to adopt thickness feedforward and second flow thickness control methods. The lead thickness deviation distance is reduced from an average of 142m to within 60m.

[0058] When the low speed of the unit is ≤60 m / min, speed adjustment is used: the entrance tension control of the 1st frame is based on the actual tension value measured by the entrance tension meter of the 1st frame, and the deviation is made from the entrance tension setting value of the 1st frame to obtain the entrance tension deviation value of the 1st frame. After adjustment by the tension regulator, it is used as an additional speed setting of the speed regulator and sent to one of the two adjacent transmission groups with strip steel to produce a speed difference. The change of this speed difference is used to maintain the stability of the strip tension between the two points. When the high speed of the unit is greater than 60 m / min, roll gap adjustment is used: the entrance tension control of the 1st frame is based on the actual tension value measured by the entrance tension meter of the 1st frame, and the deviation is made from the entrance tension setting value of the 1st frame to obtain the entrance tension deviation value of the 1st frame. After adjustment by the tension regulator, it is used as an additional roll gap setting of the roll gap control of the pressing system. The stability of the strip tension between the two points is maintained by changing and adjusting the pressing.

[0059] The belt threading stage mainly includes two processes: the first stage, after starting the machine, it starts to crawl at a low speed. The rolling force of the roll is set to 2500kn and the speed is 30m / min. At this time, the entrance thickness gauge is put into use, and the exit thickness gauge is not put into use. The thickness of the exit cannot be known, and the rolling force is not adjusted. In the second stage, the exit thickness gauge is put into use. At this time, the thickness deviation reaches 30%. At this time, the rolling force is manually added, and the thickness difference is reduced, but it does not reach the thickness tolerance range. For this, a low-speed section thickness control strategy is formulated: in the case of no detection signal of the exit thickness in the low-speed section, the exit thickness prediction model is developed using the entrance thickness gauge signal and the actual elongation of the 1# and 2# frames to estimate the exit thickness. After the entrance thickness gauge is put into use, the rolling force is manually adjusted according to the predicted exit thickness, and then the feedforward thickness control FF-AGC and the second flow thickness control MF-AGC are put into use. After the exit thickness gauge is put into use, the feedback thickness control MON-AGC is put into use.

[0060] Furthermore, as a response to the above Figure 1 In order to realize the method shown in the figure, the embodiment of the present invention also provides a frame steel production device for the above Figure 1 The device embodiment corresponds to the aforementioned method embodiment. For ease of reading, this device embodiment will not repeat the details of the aforementioned method embodiment one by one, but it should be clear that the device in this embodiment can correspond to all the contents of the aforementioned method embodiment. Figure 6 As shown, the device includes: a setting unit 21, a processing unit 22, and a correction unit 23, wherein

[0061] A setting unit 21, used to set the tension of the wet leveling machine group equipment;

[0062] A processing unit 22, used for controlling the wet leveling unit to level the steel coil to be processed based on the tension;

[0063] The correction unit 23 is used to correct the rolling force of the wet leveling mill when the leveling process of the wet leveling mill is running stably.

[0064] The processor includes a kernel, and the kernel retrieves the corresponding program unit from the memory. One or more kernels can be set, and a frame steel production method can be implemented by adjusting kernel parameters, which can solve the problem of lack of a more standardized process for the production of frame steel.

[0065] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, and when the program is executed by a processor, the method for producing the frame steel is implemented.

[0066] An embodiment of the present invention provides a processor, which is used to run a program, wherein the method for producing frame steel is executed when the program is run.

[0067] An embodiment of the present invention provides an electronic device, the electronic device comprising at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the above-mentioned frame steel production method

[0068] An embodiment of the present invention provides an electronic device 30, such as Figure 7 As shown, the electronic device includes at least one processor 301, and at least one memory 302 and a bus 303 connected to the processor; wherein the processor 301 and the memory 302 communicate with each other via the bus 303; the processor 301 is used to call the program instructions in the memory to execute the above-mentioned frame steel production method.

[0069] The intelligent electronic devices in this article can be PCs, PADs, mobile phones, etc.

[0070] The present application also provides a computer program product, which, when executed on a process management electronic device, is suitable for executing a program that initializes the steps of the above-mentioned frame steel production method.

[0071] 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.

[0072] 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-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0073] 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.

[0074] 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.

[0075] 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 1The steps for the functions specified in one or more boxes.

[0076] 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 is caused to execute the following Figure 1 This corresponds to the flow of control of the memory in the embodiment.

[0077] 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.

[0078] 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.

[0079] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices 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. There may be other division methods in actual implementation. For example, 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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 replace some of the technical features therein by equivalents. 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.

Claims

1. A method for producing frame steel, characterized in that: include: Set the tension of the wet leveling unit equipment; Controlling the wet leveling unit to level the steel coil to be processed based on the tension; When the flattening process of the wet flattening mill is running stably, the rolling force of the wet flattening mill is corrected.

2. The method according to claim 1, characterized in that The wet leveling machine group equipment includes an uncoiler, a first leveling machine, a frame, a second leveling machine and a coiler.

3. The method according to claim 2, characterized in that The surface roughness of the working roll of the first leveler is 0.15 μm-0.25 μm. The surface roughness of the working roll of the second leveling machine is 0.15 μm-0.25 μm.

4. The method according to claim 2, characterized in that: When the flattening process of the wet flattening mill is running stably, correcting the rolling force of the wet flattening mill comprises: When the flattening process of the wet flattening mill group is running stably, the rolling forces of the first flattening mill and the second flattening mill are corrected.

5. The method according to claim 4, characterized in that When the leveling process of the wet leveling mill group is running stably, correcting the rolling force of the first leveling mill and the second leveling mill comprises: When the leveling process of the wet leveling mill group is running stably, the rolling force of the first leveling mill is modified to MN-4.4MN, and the rolling force of the second leveling mill is modified to 1.8MN-2.2MN.

6. The method according to claim 1, characterized in that The operating speed of the wet leveling unit equipment is 900M / MIN-1000M / MIN.

7. The method according to claim 1, characterized in that The frame includes a first frame and a second frame, and the initial values ​​of the bending rolls of the first frame and the second frame are 5%-10%. The method further comprises: In the case of normal operation, the bending roll value of the first stand is adjusted based on the shape of the steel coil at the outlet; The bending value of the second stand is 20%-15%.

8. A production device for frame steel, characterized in that: Also includes: A setting unit, used to set the tension of the wet leveling machine group equipment; A processing unit, used for controlling the wet leveling unit to level the steel coil to be processed based on the tension; The correction unit is used to correct the rolling force of the wet leveling mill when the leveling process of the wet leveling mill is running stably.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the steps of the method for producing frame steel according to any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: The electronic device includes at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the steps of the frame steel production method as described in any one of claims 1 to claim 7.

Images