Shape maintaining method for rib pressing plate manufacturing and mounting

Abstract

The invention relates to the technical field of plate processing, in particular to a rib pressing plate manufacturing and mounting shape maintaining method which comprises the following steps: S1, pressing a plate to form a rib pressing plate; s2, a plurality of leveling pieces are welded to the face, provided with the groove part, of the pressed rib pressing plate at intervals; s3, all the groove parts of the rib pressing plate are subjected to heating treatment, so that the internal stress of the rib pressing plate is eliminated; s4, the rib pressing plate is subjected to natural cooling treatment; s5, the multiple rib pressing plates are spliced and welded; and S6, all the leveled parts are polished and removed. It can be guaranteed that the rib pressing plate has good flatness, follow-up fixing and splicing are facilitated, and the installation and construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing, and particularly to a method for maintaining the shape of a corrugated plate during manufacturing and installation. Background Art

[0002] As a form of wall panel in the superstructure area of a ship, corrugated plates have been widely used in the sectional manufacturing of the superstructure area of ro-ro passenger ships. Since the strength of thin plates can be effectively improved through the corrugated form, the welding of the wall panel strengthening structure can be effectively reduced, while reducing the structure on the wall panel and lightening the weight of the wall panel when improving the strength of the thin plate wall panel. However, when using corrugated plates for wall panels with a thickness of 3 mm or less, due to the high internal stress of the sheet metal itself, it is very difficult to completely maintain the pressed shape during the pressing of the corrugated plate, and the pressed sheet metal is prone to arching, resulting in an uneven corrugated plate. Due to internal stress, the surface of the corrugated plate with a thickness of 3 mm or less cannot ensure good flatness, and it needs to be lifted individually, and cannot be connected in advance. Moreover, due to the limited width of a single corrugated plate, multiple corrugated plates need to be spliced. However, the deformation of the corrugated plate is large, and it cannot be fixed and spliced quickly and with high quality. This increases the construction difficulty of the installation of the corrugated plate and affects the manufacturing quality and installation efficiency of the corrugated plate with a thickness of less than 3 mm.

[0003] Therefore, a method for maintaining the shape of a corrugated plate during manufacturing and installation is needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for maintaining the shape of a corrugated plate during manufacturing and installation, which can ensure that the corrugated plate has good flatness, is convenient for subsequent fixing and splicing, and improves the efficiency of installation construction.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for maintaining the shape of a corrugated plate during manufacturing and installation includes the following steps:

[0007] S1. Press the sheet metal to form a corrugated plate;

[0008] S2. Weld a plurality of flattening members at intervals on the side of the corrugated plate with a groove portion after pressing;

[0009] S3. Heat-treat all the groove portions of the corrugated plate to eliminate the internal stress of the corrugated plate;

[0010] S4. Perform natural cooling treatment on the corrugated plate;

[0011] S5. Splice and weld multiple corrugated plates;

[0012] S6. Grind and remove all the flattening members.

[0013] In some embodiments, in step S2, welding is symmetrically performed from the middle of the flattening member to both ends.

[0014] In some embodiments, in step S2, the flattening member is welded to both ends at the opening of each groove portion, and the welding length is within a set welding length range.

[0015] In some embodiments, in step S3, all the groove portions are heat-treated from the middle of the bead plate to both ends.

[0016] In some embodiments, the flattening member is made of flat iron.

[0017] In some embodiments, relief notches are provided at both ends of the flat iron.

[0018] In some embodiments, in step S5, the following steps are included:

[0019] S51. Weld the ends of the flattening members on the two butt-jointed bead plates, and the two welded flattening members form a welding relief groove.

[0020] In some embodiments, in step S5, the following steps are included:

[0021] S52. Weld the front and back sides of the weld between the two butt-jointed bead plates.

[0022] In some embodiments, in step S5, the following steps are included:

[0023] S53. Grind the position of the weld after welding.

[0024] In some embodiments, in step S6, after the flattening member is ground and removed by a grinding machine, all the welding scars are ground.

[0025] Advantages of the present invention:

[0026] A shape-preserving method for manufacturing and installing a ribbed plate provided by the present invention, after pressing a plate to form a ribbed plate, a plurality of flattening members are welded at intervals on the side of the ribbed plate having a groove portion after pressing, and all groove portions of the ribbed plate are heat-treated to eliminate the internal stress of the ribbed plate, the ribbed plate is naturally cooled, then a plurality of ribbed plates are assembled and welded, and finally all the flattening members are polished and removed. In the above manner, the flattening members are welded and fixed to the ribbed plate to adjust the deformation problem caused after pressing the ribbed plate. At the same time, all groove portions are heated to quickly heat and naturally cool the ribbed plate, thereby reducing the stress concentration in the groove portion area of the ribbed plate and eliminating the internal stress of the ribbed plate. Through the above treatment, it can be ensured that the ribbed plate has good flatness. Subsequently, a plurality of processed ribbed plates can be assembled and welded. Since the ribbed plates processed in the above manner have good flatness, it is convenient for subsequent fixing and splicing. When used subsequently, the assembled and welded ribbed plates can be directly hoisted for use, thereby improving the efficiency of installation construction. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0028] Figure 1 It is a schematic diagram of fixing a flattening member on a ribbed plate in a shape-preserving method for manufacturing and installing a ribbed plate of the present invention;

[0029] Figure 2 It is a schematic diagram of welding between butt-jointed ribbed plates in a shape-preserving method for manufacturing and installing a ribbed plate of the present invention.

[0030] In the figure:

[0031] 1. Ribbed plate; 11. Groove portion; 2. Flattening member; 21. Avoidance notch; 22. Welding avoidance groove. Detailed Embodiments

[0032] Before explaining any embodiment of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0033] In this application, the terms "comprising", "including", "having" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element.

[0034] In this application, the terms "connect", "combine", "couple", "mount" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without the need to set up intermediate parts, and indirect connection means that two parts or components are respectively connected to at least one intermediate part, and these two parts or components are connected through the intermediate part. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0035] In this application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0036] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0037] As a form of wall panel in the superstructure area of a ship, the corrugated plate has been widely used in the sectional manufacturing of the superstructure area of a ro-ro passenger ship. Since the strength of thin plates can be effectively improved through the corrugated form of the plates, the welding of the wall panel strengthening structure can be effectively reduced, while reducing the structure on the wall panel and reducing the weight of the wall panel while increasing the strength of the thin plate wall panel. However, when using the corrugated plate form for wall panels of 3 mm and below, due to the high internal stress of the plates themselves, it is very difficult to completely maintain the pressed shape during the pressing of the corrugated plate, and the pressed plates are prone to arching, resulting in the unevenness of the corrugated plate.

[0038] To solve the above problems, so as to ensure that the bead plate has good flatness, facilitate subsequent fixing and splicing, and improve the efficiency of installation construction, as Figure 1 - Figure 2 shown, the present invention provides a shape-preserving method for manufacturing and installing a bead plate. The shape-preserving method for manufacturing and installing a bead plate includes the following steps:

[0039] S1. Press the plate to form the bead plate 1;

[0040] S2. Weld a plurality of flattening members 2 at intervals on the side of the bead plate 1 having the groove portion 11 after pressing;

[0041] S3. Heat-treat all the groove portions 11 of the bead plate 1 to eliminate the internal stress of the bead plate 1;

[0042] S4. Perform natural cooling treatment on the bead plate 1;

[0043] S5. Fit and weld multiple bead plates 1;

[0044] S6. Grind and remove all the flattening members 2.

[0045] By the above method, the flattening member 2 is welded and fixed to the bead plate 1 to adjust the deformation problem caused after pressing the bead plate 1. At the same time, the bead plate 1 is rapidly heated and naturally cooled by heating all the groove portions 11, so as to reduce the stress concentration in the area of the groove portion 11 of the bead plate 1 and eliminate the internal stress of the bead plate 1. Through the above treatment, it can be ensured that the bead plate 1 has good flatness. Subsequently, multiple processed bead plates 1 can be fitted and welded. Since the bead plate 1 processed by the above method has good flatness, it is convenient for subsequent fixing and splicing. When used subsequently, the bead plate 1 after fitting and welding can be directly hoisted for use, thereby improving the efficiency of installation construction.

[0046] In some embodiments, in step S2, welding is performed symmetrically from the middle to both ends of the flattening member 2. By the above welding method, the deformation of the bead plate 1 itself can be expanded from the middle to both ends, so as to ensure that after the flattening member 2 is welded to the bead plate 1, the bead plate 1 is effectively flattened, thereby ensuring the flatness of the bead plate 1 after welding the flattening member 2.

[0047] In some embodiments, in step S2, the flattening member 2 is welded to both ends of the opening of each groove portion 11, and the welding length is within the set welding length range. Specifically, in this embodiment, the set welding length range can be determined according to the plate and the groove. By welding the flattening member 2 to both ends of the opening of each groove portion 11, it can be ensured that the bead plate 1 is effectively flattened while avoiding the welding position of the flattening member 2 and the bead plate 1 being too long, resulting in a large amount of welding and subsequent grinding work.

[0048] In some embodiments, in step S3, all the groove portions 11 of the bead plate 1 are heated from the middle to both ends. During the heat treatment, first, along the middle groove portion 11, it is symmetrically heated from the middle to both ends of the groove portion 11, and then, it is heated from the middle groove portion 11 to the groove portions 11 on both sides. By the above method, the internal stress of the bead plate 1 can be effectively released, thereby further ensuring the flatness of the bead plate 1 after treatment.

[0049] In some embodiments, the flattening member 2 is made of flat iron. The flat iron has the following remarkable advantages: 1. Simple structure, convenient processing, and easy to cut and weld: The flat iron has a regular shape, which is convenient to be cut into different lengths according to requirements and can be quickly welded with other metal components. High strength and load-bearing capacity. 2. Stable material properties: Usually made of carbon steel or low alloy steel, with high tensile strength and hardness, and can withstand large loads. 3. Economical and practical, cost-saving and low price: Compared with I-beams, channel steels, etc., the flat iron has a simple production process, less raw material consumption, and lower cost. By using the flat iron as the flattening member 2, the flatness of the bead plate 1 can be effectively improved.

[0050] In some embodiments, avoiding notches 21 are opened at both ends of the flat iron. By opening the avoiding notches 21, it is convenient for subsequent docking with other flat irons.

[0051] In some embodiments, in step S5, it includes the following steps:

[0052] S51. Weld the ends of the flattening members 2 on the two butt-jointed bead plates 1. After welding, the two flattening members 2 form a welding avoidance groove 22. By first welding and docking the flattening members 2 of the butt-jointed bead plates 1, a positioning effect can be achieved, which is convenient for subsequent butt welding of the bead plates 1. Moreover, the two flattening members 2 after welding form a welding avoidance groove 22, which is convenient for subsequent overall welding of the weld formed between the bead plates 1.

[0053] In some embodiments, in step S5, it includes the following steps: S52. Weld the front and back sides of the weld between the two butt-jointed bead plates 1. Through the above welding, the stable connection between the two bead plates 1 can be ensured, and the welding quality meets the requirements.

[0054] In some embodiments, in step S5, it includes the following steps: S53. Grind the position of the weld after welding. By grinding the position of the weld, the flatness and smoothness of the bead plate 1 after welding can be ensured, which is convenient for subsequent use.

[0055] In some embodiments, in step S6, after the flattening member 2 is ground and removed by a grinding machine, all the weld scars are ground. By the above method, the smoothness of the surface of the bead plate 1 can also be ensured, which is convenient for subsequent use.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A method for maintaining the shape of a bead plate during fabrication and installation, characterized in that, It includes the following steps: S1. Press the plate to form a ribbed plate (1); S2. Weld a plurality of flattening parts (2) at intervals on the side of the ribbed plate (1) with a groove part (11) after pressing; S3. Heat-treat all the groove parts (11) of the ribbed plate (1) to eliminate the internal stress of the ribbed plate (1); S4. Carry out natural cooling treatment on the ribbed plate (1); S5. Assemble and weld multiple ribbed plates (1); S6. Grind and remove all the flattening parts (2).

2. The conformal method for manufacturing and installing the ribbed plate according to claim 1, characterized in that, In step S2, weld symmetrically from the middle of the flattening part (2) to both ends.

3. The conformal method for manufacturing and installing the bead plate according to claim 1, characterized in that In step S2, the flattening part (2) is welded to both ends of the opening of each groove part (11), and the welding length is within the set welding length range.

4. The conformal method for manufacturing and installing the ribbed plate according to claim 1, characterized in that, In step S3, heat-treat all the groove part positions (11) of the ribbed plate (1) from the middle to both ends.

5. The conformal method for manufacturing and installing the corrugated plate according to claim 1, characterized in that, The flattening part (2) is made of flat iron.

6. The conformal method for manufacturing and installing the bead plate according to claim 5, characterized in that, Avoidance notches (21) are provided at both ends of the flat iron.

7. The shape-preserving method for manufacturing and installing the bead plate according to claim 6, characterized in that, In step S5, it includes the following steps: S51. Weld the ends of the flattening parts (2) on two butt-jointed ribbed plates (1). After welding, the two flattening parts (2) form a welding avoidance groove (22).

8. The conformal method for manufacturing and installing the bead plate according to claim 7, characterized in that, In step S5, it includes the following steps: S52. Weld the front and back sides of the weld between the two butt-jointed ribbed plates (1).

9. The conformal method for manufacturing and installing the bead plate according to claim 8, characterized in that, In step S5, it includes the following steps: S53. Grind the weld position after welding.

10. The conformal method for manufacturing and installing the bead plate according to claim 1, characterized in that, In step S6, after grinding and removing the flattening part (2) with a grinding machine, grind all the weld scars.

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