Tension straightening machine arrangement method based on heavy pressure technology

Abstract

This invention provides a method for arranging a straightening machine based on heavy-pressure reduction technology, belonging to the field of continuous casting technology. The method includes the following steps: determining the compressible interval corresponding to each casting speed under heavy-pressure reduction technology; determining the length of the compressible interval corresponding to each casting speed under each working condition based on the compressible interval; selecting the smallest compressible interval length from the compressible interval lengths corresponding to each casting speed under each working condition; and arranging the straightening machine while ensuring that the spacing between the reduction rollers is less than or equal to the smallest compressible interval length. This invention solves the problem in the prior art where, for straightening machines used independently under heavy-pressure reduction, there is a lack of an effective solution to reduce the number of straightening machines while meeting the requirements of the reduction process.

Description

Technical Field

[0001] This invention relates to the field of continuous casting technology, and more specifically, to a method for arranging a straightening machine based on heavy pressure technology. Background Technology

[0002] End-of-solidification reduction technology in continuous casting is an effective technique for improving core defects in cast billets and has been widely studied and applied in various billet shapes. In the past decade or so, although light reduction technology at the end of solidification has continued to be studied and applied, it has gradually developed into heavy reduction (or large reduction) technology in order to obtain better core quality of cast billets and improve the final product performance.

[0003] The understanding and application of heavy pressing technology are not entirely the same at present. However, from the perspective of guiding theory and practical application, heavy pressing technology can be roughly divided into three categories: (1) single-roll heavy pressing, which uses heavy pressing as an independent technology; (2) increasing the total pressing amount on the basis of light pressing; (3) a combination of light and heavy pressing, in which light pressing is used to improve segregation and heavy pressing is used to "weld" shrinkage cavities to improve the density of the billet. However, no design criteria for the arrangement of the pressing and straightening machine are given for any of the heavy pressing implementation methods.

[0004] Existing pressure-and-pull straightening machine layouts continue the design of light pressure, failing to provide reliable and effective solutions from the perspectives of mechanism and improvement. Generally, solutions are offered from several angles: From a process perspective, a smaller roller spacing is preferred, such as 600-800mm, as it is believed that a smaller roller spacing facilitates continuous pressure and ensures consistent action. However, no feasible design specifications are provided. From an equipment perspective, considering the strength of the straightening machine, the transmission layout, cylinder diameter, and hoisting, the roller spacing is generally appropriately larger, such as 0.95-1.6m. In principle, the greater the required pressure force, the larger the straightening machine frame, and the larger the roller spacing needs to be. The layout of curved and straightening zones requires slightly larger roller spacing to accommodate the machine's extraction space. Currently, the roller spacing is determined by a combination of process and equipment considerations, but no design limits are provided as guiding principles to achieve a reasonable integration of process and equipment.

[0005] As mentioned above, in the prior art, the arrangement of tension levelers used independently under heavy pressure is based on the comprehensive roller spacing of the process and equipment. The arrangement is similar to a convention and does not provide design limits from a guiding principle. Therefore, for the arrangement of tension levelers used independently under heavy pressure, there is a lack of an effective solution to reduce the number of tension levelers while meeting the pressing process requirements. Summary of the Invention

[0006] In view of the above problems, the purpose of this invention is to provide a method for arranging tension levelers based on heavy pressure technology, so as to solve the problem in the prior art that there is no effective solution for reducing the number of tension levelers while meeting the requirements of the pressing process when arranging tension levelers for independent applications under heavy pressure.

[0007] This invention provides a method for arranging a tension leveling machine based on heavy pressure technology, comprising the following steps:

[0008] Determine the compressible range corresponding to the pulling speed under various working conditions of the heavy compression technology; wherein, the compressible range is the range from the start position of the compression range to the end position of the compression range;

[0009] Based on the compressible range corresponding to the pulling speed under each working condition, determine the length of the compressible range corresponding to the pulling speed under each working condition;

[0010] Select the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speeds under each working condition;

[0011] The tension leveler is arranged to ensure that the gap between the pressing rollers is less than or equal to the minimum length of the pressing interval.

[0012] Furthermore, a preferred embodiment is that the method for determining the starting position of the compression interval includes:

[0013] Based on the starting position of the preset central solid fraction standard interval, the starting position of the compression interval is obtained.

[0014] Furthermore, a preferred embodiment is that the method for determining the end position of the compression interval includes:

[0015] Based on the end position of the preset central solid fraction standard interval, the end position of the compression interval is obtained.

[0016] Furthermore, a preferred embodiment is that the preset central solid fraction standard range is 0.35 to 0.75.

[0017] Furthermore, in a preferred embodiment, determining the length of the compressible interval corresponding to each working condition's pulling speed, based on the compressible interval corresponding to each working condition's pulling speed, includes:

[0018] Based on the compressible interval corresponding to each working condition pulling speed, the length between the end position of the compressible interval and the beginning position of the compressible interval is taken as the compressible interval length, thereby obtaining the compressible interval length corresponding to each working condition pulling speed.

[0019] Furthermore, a preferred embodiment is that selecting the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speeds under each working condition includes:

[0020] The compressible interval lengths corresponding to the pulling speeds of each working condition are sorted in ascending order, and the smallest compressible interval length is selected from the compressible interval lengths corresponding to the pulling speeds of each working condition based on the sorting results.

[0021] Furthermore, a preferred approach is to arrange the tension leveler while ensuring that the spacing between the pressing rollers is less than or equal to the minimum length of the pressable section.

[0022] At least one pair of pressing rollers shall be arranged within the pressing range corresponding to the pulling speed of each working condition.

[0023] Furthermore, a preferred approach is that, during the process of determining the compressible range corresponding to the pulling speed under various operating conditions of the heavy-pressure technology,

[0024] The compressible range corresponding to each working condition pulling speed is determined sequentially from low to high. Among them, the higher the working condition pulling speed, the larger the range of the corresponding compressible range and the larger the corresponding roller spacing.

[0025] Furthermore, a preferred embodiment, after arranging the tension leveler to ensure that the spacing between the pressing rollers is less than or equal to the minimum length of the pressable section, further includes:

[0026] In the pressing process of heavy pressing technology, when there are two or more pairs of pressing rollers arranged in the pressing range corresponding to the selected working condition pulling speed, the pressing roller closest to the end position of the pressing range is selected to perform heavy pressing.

[0027] Furthermore, a preferred approach is to arrange the tension leveler while ensuring that the spacing between the pressing rollers is less than or equal to the minimum length of the pressable section.

[0028] The number of pressing rollers is less than or equal to 5 pairs.

[0029] As can be seen from the above technical solution, the tension leveling machine arrangement method based on heavy-pressure technology provided by this invention first determines the compressible interval corresponding to each working condition tension speed of the heavy-pressure technology; then, based on the compressible interval corresponding to each working condition tension speed, determines the length of the compressible interval corresponding to each working condition tension speed; then, selects the smallest compressible interval length from the compressible interval lengths corresponding to each working condition tension speed; and finally, arranges the tension leveling machine to ensure that the pressure roller spacing is less than or equal to the minimum compressible interval length. Therefore, based on the setting of the pressure interval standard, and considering the changes in the compressible interval position and length under various production conditions, a design principle for maximizing the roller spacing of the tension leveling machine is given. This effectively solves the problem in the prior art of lacking a design standard for maximizing the roller spacing of the tension leveling machine, and failing to obtain the limit design boundary to guarantee the pressing effect. This invention avoids the fuzzy requirements for equipment that the roller spacing should be as small as possible, as recognized in the prior art, achieving quantitative design, ensuring the pressing effect while using the fewest tension leveling machine arrangements, thereby effectively reducing the equipment cost of heavy-pressure technology, and consequently greatly reducing the overall production cost.

[0030] To achieve the foregoing and related objectives, one or more aspects of the invention include the features that will be described in detail below. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to encompass all such aspects and their equivalents. Attached Figure Description

[0031] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention.

[0032] Figure 1 This is a flowchart of a tension leveling machine arrangement method based on heavy pressure technology according to an embodiment of the present invention. Detailed Implementation

[0033] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details.

[0034] To address the problem in the aforementioned prior art that there is a lack of an effective solution for reducing the number of tension levelers while meeting the requirements of the pressing process, a tension leveler arrangement method based on heavy-pressure technology is proposed.

[0035] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] To illustrate the tension straightening machine arrangement method based on heavy pressure technology provided by this invention Figure 1 The flowchart illustrates a method for arranging a tension leveling machine based on heavy pressure technology according to an embodiment of the present invention.

[0037] like Figure 1 As shown, the tension straightening machine arrangement method based on heavy pressure technology provided by the present invention includes the following steps:

[0038] Step S1: Determine the compressible range corresponding to the pulling speed under each working condition of the heavy compression technology; wherein, the compressible range is the range from the start position of the compression range to the end position of the compression range.

[0039] Specifically, the steel grade of the billet and the casting speed used vary under different operating conditions. Even for the same steel grade, different casting speeds will result in different compressible ranges. Therefore, it is necessary to comprehensively consider the compressible ranges corresponding to different casting speeds under different operating conditions. That is, to comprehensively consider the compressible ranges corresponding to different steel grades and different casting speeds. Based on the steel grade and casting speed range primarily used by the casting machine for compression, a standard compressible range for the heavy compression process can be given, thereby determining the compressible range corresponding to the casting speed under each operating condition.

[0040] As a preferred embodiment of the present invention, the method for determining the starting position of the compression interval includes:

[0041] Based on the starting position of the preset central solid fraction standard interval, the starting position of the compression interval is obtained.

[0042] Specifically, based on the starting value of the preset central solid fraction standard interval and the operating speed, the starting position of the compression interval corresponding to that operating speed can be calculated using a temperature model in the prior art. Since the temperature model is a commonly used technique in this field, it will not be elaborated upon further. In the technical solution of this invention, it is sufficient to understand that, using the temperature model and based on the given starting value of the preset central solid fraction standard interval, the starting position of the compression interval under each operating speed can be calculated.

[0043] As a preferred embodiment of the present invention, the method for determining the end position of the compression interval includes:

[0044] Based on the end position of the preset central solid fraction standard interval, the end position of the compression interval is obtained.

[0045] Specifically, based on the end value of the preset central solid fraction standard interval and the operating speed, the end position of the compression interval corresponding to that operating speed can be calculated using the temperature model in the existing technology. For standalone heavy compression technology, the compressible interval only needs to be determined based on the start and end positions of the compression interval.

[0046] As a preferred embodiment of the present invention, the preset standard range of central solid fraction is 0.35 to 0.75.

[0047] Specifically, the preset central solid fraction standard range is obtained through experimental verification and is a given value in the technical solution of this invention.

[0048] It should also be noted that in the technical solution of the present invention, the compressible range corresponding to the pulling speed of each working condition of the above-mentioned heavy pressure technology is not unique. The compressible range corresponding to the pulling speed of different working conditions can also be determined by experience or experiments in actual operation. There are multiple ways to determine the compressible range corresponding to the pulling speed of each working condition in the field. As long as the compressible range corresponding to the pulling speed of each working condition required in the technical solution can be obtained, the present invention does not make any special limitation.

[0049] Step S2: Determine the length of the compressible interval corresponding to the pulling speed under each working condition based on the compressible interval corresponding to each working condition pulling speed.

[0050] Specifically, since the compressible intervals corresponding to the pulling speeds of different working conditions are different, that is, the start and end positions of the compressible intervals are different, the length of the compressible interval corresponding to each working condition pulling speed is determined, thereby determining the length of the compressible interval corresponding to each working condition pulling speed.

[0051] As a preferred embodiment of the present invention, the length of the compressible interval corresponding to each working condition's pulling speed is determined according to the compressible interval corresponding to each working condition's pulling speed, including:

[0052] Based on the compressible interval corresponding to each working condition pulling speed, the length between the end position of the compressible interval and the beginning position of the compressible interval is taken as the compressible interval length, thus obtaining the compressible interval length corresponding to each working condition pulling speed.

[0053] Specifically, the length of the pressable interval is the length between the end position of the pressable interval and the beginning position of the pressable interval, which can be obtained by subtracting the length coordinates.

[0054] Step S3: Select the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speeds of each working condition.

[0055] Specifically, the shortest compressible interval length is selected from the compressible interval lengths corresponding to each working speed, and used as a reference for setting the distance between the pressing rollers in the compressible interval corresponding to each working speed.

[0056] As a preferred embodiment of the present invention, the smallest compressible interval length is selected from the compressible interval lengths corresponding to the pulling speeds under various working conditions, including:

[0057] Sort the compressible interval lengths corresponding to the pulling speed under each working condition in ascending order, and select the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speed under each working condition based on the sorting results.

[0058] Specifically, in order to facilitate the selection of the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speeds of each working condition, the compressible interval lengths corresponding to the pulling speeds of each working condition can be sorted first.

[0059] Step S4: Ensure that the gap between the pressing rollers is less than or equal to the minimum length of the pressing interval, and then arrange the tension leveling machine.

[0060] Specifically, in existing technologies, the arrangement of the tension leveler for heavy-pressure pressing technology is determined by a comprehensive consideration of both process and equipment, with the roller spacing determined by conventional methods. However, no absolute standard for the integration of these two factors is provided; generally, a smaller roller spacing is considered better, resulting in vague requirements for the equipment. Based on this, this invention provides a scheme that minimizes the number of tension levelers while ensuring process requirements are met, specifically ensuring that the spacing between the pressing rollers is less than or equal to the minimum length of the pressable section, for the tension leveler arrangement.

[0061] As a preferred embodiment of the present invention, during the arrangement of the tension leveler, while ensuring that the spacing between the pressing rollers is less than or equal to the minimum length of the pressing interval,

[0062] At least one pair of pressing rollers shall be arranged within the pressing range corresponding to the pulling speed of each working condition.

[0063] Specifically, based on the principle of process continuity, at least one pair of pressing rollers is ensured within the pressable range at any process pulling speed, thereby ensuring the continuity of the heavy pressing process and the stability of the pressing effect.

[0064] As a preferred embodiment of the present invention, in the process of determining the compressible range corresponding to the pulling speed under various working conditions of the heavy-pressure technology...

[0065] The compressible range corresponding to each working condition pulling speed is determined sequentially from low to high. Among them, the higher the working condition pulling speed, the larger the range of the corresponding compressible range and the larger the corresponding roller spacing.

[0066] Specifically, based on solidification characteristics, as the working speed increases, the compressible range increases, and the gap between the compressive rollers can be appropriately increased.

[0067] As a preferred embodiment of the present invention, after arranging the tension leveler to ensure that the spacing between the pressing rollers is less than or equal to the minimum length of the pressing interval, the method further includes:

[0068] In the pressing process of heavy pressing technology, when there are two or more pairs of pressing rollers arranged in the pressing range corresponding to the selected working condition pulling speed, the pressing roller near the end position of the pressing range is selected to perform heavy pressing.

[0069] Specifically, the heavy-pressure pressing technology follows the "farthest principle," meaning that if there are two or more pairs of pressing rollers within the pressing range at a specific working condition and pulling speed, the last pair of pressing rollers is used as the pressing roller for that working condition and pulling speed. In other words, the pressing roller closest to the end of the pressing range is selected for heavy-pressure pressing.

[0070] As a preferred embodiment of the present invention, during the arrangement of the tension leveler, while ensuring that the spacing between the pressing rollers is less than or equal to the minimum length of the pressing interval,

[0071] The number of pressing rollers is less than or equal to 5 pairs.

[0072] Specifically, the number of pressing rollers in this invention is less than or equal to 5 pairs, and this scheme is based on actual experimental verification.

[0073] By first determining the compressible range corresponding to the pulling speed under each working condition of the heavy-duty pressing technology; and then determining the length of the compressible range corresponding to each working condition pulling speed based on the compressible range; next, selecting the minimum compressible range length from the compressible range lengths corresponding to each working condition pulling speed; and then ensuring that the pressing roller spacing is less than or equal to the minimum compressible range length, the tension leveling machine is arranged. Based on the setting of the pressing range standard, and considering the changes in the position and length of the compressible range under various production conditions, a design principle for maximizing the roller spacing of the tension leveling machine is given. This effectively solves the problem in existing technologies where there is a lack of a design standard for maximizing the roller spacing of tension leveling machines, making it impossible to obtain the ultimate design boundary to guarantee the pressing effect. This invention avoids the fuzzy requirements for equipment that the roller spacing should be as small as possible, as held in existing technologies, achieving quantitative design. While ensuring the pressing effect, it uses the fewest tension leveling machine arrangements, thereby effectively reducing the equipment cost of heavy-duty pressing and significantly reducing the overall production cost.

[0074] To better illustrate the tension straightening machine arrangement method based on heavy pressure technology provided by this invention, the following example is given:

[0075] Example 1

[0076] Taking a 165X165mm square billet casting machine in a steel plant as an example, the main steel grade produced by this casting machine is 82B. Therefore, the arrangement of the straightening machine (a single-roll straightening machine with a pair of pressing rolls is adopted in this embodiment) is based on the solidification process of 82B steel grade. The single-roll heavy pressing technology is used, and the standard for the pressing range is that the central solid fraction is 0.4 to 0.7, which is the pressing range. Based on this, the parameter data of the pressing range corresponding to the drawing speed under each working condition in Table 1 are calculated.

[0077]

[0078]

[0079] Table 1

[0080] Based on the parameter data of the compressible range corresponding to the tensioning speed under each working condition in Table 1, the tension leveling machine arrangement process using the tension leveling machine arrangement method based on heavy pressure technology provided by this invention is as follows:

[0081] The spacing between the pressing rollers of the tension leveler is less than or equal to the length of the pressable section. Therefore, the maximum spacing between the pressing rollers of the tension leveler cannot exceed 1.6m. According to the principle of process continuity, it is necessary to ensure that there is a tension leveler (pressing rollers) in the pressable section under any working speed. Therefore, at least one tension leveler (a pair of pressing rollers) should be arranged in the pressable section at a speed of 2.2m / min. For economic and safety reasons, a tension leveler is arranged in the middle of the corresponding pressable section. The position of the first tension leveler is selected at 14.8m. As mentioned above, the spacing between the pressing rollers cannot exceed 1.6m, and the limit is 1.6m. Therefore, the position of the second tension leveler is 14.8 + 1.6 = 16.4m. Since the pressable section increases with the increase of the speed, the spacing between the pressing rollers can be appropriately increased. For example, if the spacing between the rollers after the second tension leveler is selected as 1.7m, then the position of the third tension leveler is 18.1m.

[0082] The arrangement of the three pressure-down straightening machines is 14.8m, 16.4m, and 18.1m. The 18.1m position is also within the pressure range of the maximum production speed of 2.6m / min of this casting machine, which also meets the principle of process continuity. Therefore, the three straightening machines can meet the design requirements of this casting machine.

[0083] As can be seen from Table 1, for a pulling speed of 2.6 m / min, both the second (16.4 m position) and the third (18.1 m position) pull straightening machines are within the range that can be pressed down. According to the "farthest principle" of this patent, the third pull straightening machine is used for single-roll heavy pressing control at this time.

[0084] The tension leveling machine arrangement method provided by this invention gives the design principle of maximizing the roller spacing. The tension leveling machine arrangement according to the method provided by this invention is the tension leveling machine arrangement scheme with the least use of heavy pressure technology while meeting the process effect. It is beneficial to reduce the equipment cost of heavy pressure and greatly reduce the overall production cost.

[0085] In the tension leveling machine arrangement method provided by this invention, the spacing between the pressing rollers can obviously be reduced, similar to the principle that the smaller the better. However, this would significantly increase the equipment cost. If the roller spacing is reduced, it is obvious that there will be two or more tension leveling machines in the pressing range under a specific tension speed condition. In this case, the process can be executed according to the principle of the furthest point in this invention; that is, during the pressing process of the heavy pressing technology, when there are two or more pairs of pressing rollers arranged in the pressing range corresponding to the selected working condition tension speed, the pressing roller closest to the end position of the pressing range is selected to perform heavy pressing.

[0086] The embodiments of this invention only consider one main steel type. In specific engineering designs, other steel types also need to be taken into account, which requires comprehensive processing to find the minimum compressible range for all typical working conditions.

[0087] The tension leveler arrangement method proposed in this invention mainly considers process requirements, and is also designed to meet the maximum roller spacing limit for continuity and other aspects of the process. This is beneficial for simplifying the equipment, while also requiring optimization of other conditions on the equipment, such as straightening and billet dragging.

[0088] It should be noted that this embodiment is merely a detailed description of the tension leveling machine arrangement method based on heavy pressure technology provided by the present invention in practical applications, and does not limit the technical solution provided by the present invention.

[0089] As can be seen from the above specific embodiments, the tension leveling machine arrangement method based on heavy-pressure technology provided by the present invention first determines the compressible interval corresponding to each working condition tension speed of the heavy-pressure technology; then, based on the compressible interval corresponding to each working condition tension speed, determines the length of the compressible interval corresponding to each working condition tension speed; then, selects the smallest compressible interval length from the compressible interval lengths corresponding to each working condition tension speed; and finally, arranges the tension leveling machine to ensure that the pressure roller spacing is less than or equal to the minimum compressible interval length. Therefore, based on the setting of the pressure interval standard, and considering the changes in the compressible interval position and length under various production conditions, the design principle for maximizing the roller spacing of the tension leveling machine is given. This effectively solves the problem in the prior art of lacking a design standard for maximizing the roller spacing of the tension leveling machine, and failing to obtain the limit design boundary to guarantee the pressing effect. The present invention avoids the fuzzy requirements for equipment that the roller spacing should be as small as possible, as recognized in the prior art, achieving quantitative design, ensuring the pressing effect while using the fewest tension leveling machine arrangements, thereby effectively reducing the equipment cost of heavy-pressure technology, and consequently greatly reducing the overall production cost.

[0090] The method for arranging a tension leveler based on heavy-pressure technology according to the present invention has been described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various modifications can be made to the method for arranging a tension leveler based on heavy-pressure technology according to the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A method for arranging a tension leveling machine based on heavy pressure technology, characterized in that, Includes the following steps: Determine the compressible range corresponding to the pulling speed under various working conditions of the heavy compression technology; wherein, the compressible range is the range from the start position of the compression range to the end position of the compression range; Based on the compressible range corresponding to the pulling speed under each working condition, determine the length of the compressible range corresponding to the pulling speed under each working condition; Select the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speeds under each working condition; The tension leveler is arranged to ensure that the gap between the pressing rollers is less than or equal to the minimum length of the pressing interval.

2. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, The method for determining the starting position of the compression interval includes: Based on the starting position of the preset central solid fraction standard interval, the starting position of the compression interval is obtained.

3. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, The method for determining the end position of the compression interval includes: Based on the end position of the preset central solid fraction standard interval, the end position of the compression interval is obtained.

4. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 2 or 3, characterized in that, The preset central solid fraction standard range is 0.35 to 0.

75.

5. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, The step of determining the length of the compressible interval corresponding to each working condition's pulling speed based on the compressible interval corresponding to each working condition's pulling speed includes: Based on the compressible interval corresponding to each working condition pulling speed, the length between the end position of the compressible interval and the beginning position of the compressible interval is taken as the compressible interval length, thereby obtaining the compressible interval length corresponding to each working condition pulling speed.

6. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, The selection of the smallest compressible interval length from the compressible interval lengths corresponding to the pulling speeds under various working conditions includes: The compressible interval lengths corresponding to the pulling speeds of each working condition are sorted in ascending order, and the smallest compressible interval length is selected from the compressible interval lengths corresponding to the pulling speeds of each working condition based on the sorting results.

7. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, During the arrangement of the tension leveler, under the condition that the spacing between the pressing rollers is less than or equal to the minimum length of the pressable section, At least one pair of pressing rollers shall be arranged within the pressing range corresponding to the pulling speed of each working condition.

8. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, In the process of determining the compressible range corresponding to the pulling speed under various working conditions of the heavy-pressure technology, The compressible range corresponding to each working condition pulling speed is determined sequentially from low to high. Among them, the higher the working condition pulling speed, the larger the range of the corresponding compressible range and the larger the corresponding roller spacing.

9. The method for arranging a tension leveling machine based on heavy pressure technology according to claim 1, characterized in that, After arranging the tension leveler to ensure that the gap between the pressing rollers is less than or equal to the minimum length of the pressable section, the following steps are also included: In the pressing process of heavy pressing technology, when there are two or more pairs of pressing rollers arranged in the pressing range corresponding to the selected working condition pulling speed, the pressing roller closest to the end position of the pressing range is selected to perform heavy pressing.

10. The method for arranging a tension leveling machine based on heavy pressure technology according to any one of claims 1, characterized in that, During the arrangement of the tension leveler, under the condition that the spacing between the pressing rollers is less than or equal to the minimum length of the pressable section, The number of pressing rollers is less than or equal to 5 pairs.

Images