Ship Total Assembly Leveling Method

Abstract

This application relates to the technical field of cruise ship manufacturing, and particularly to a leveling method for the overall assembly of a ship, which includes the following steps: During the assembly stage, starting from the midline of the hull and moving towards the bow and stern respectively, and along the height direction of the hull, in the order from bottom to top, first level two decks, and then the bulkheads between the two decks, and level multiple overall ship assembly modules layer by layer in sequence. During the heating and leveling process, avoid the leveling construction line formed before assembly. It can be seen that during the assembly stage, leveling each overall ship assembly module according to the assembly order helps with equipment assembly, reduces the input of auxiliary materials in the later stage, reduces the weight of the hull itself, and helps improve the load-bearing capacity of the hull.

Description

Technical Field

[0001] This application relates to the technical field of cruise ship manufacturing, and particularly to a method for leveling the overall assembly of a ship. Background Art

[0002] Currently, during the cruise ship assembly stage, thin plates also have deformation problems. The deformation causes the surface to be uneven, which on the one hand affects the installation of equipment, and on the other hand leads to an increase in the consumption of auxiliary materials such as cement and tiles, indirectly resulting in an increase in the hull's own weight and a decrease in its load-bearing capacity. Summary of the Invention

[0003] The purpose of this application is to provide a method for leveling the overall assembly of a ship, which to a certain extent solves the technical problem in the prior art that during the cruise ship assembly stage, thin plates also have deformation problems, and thus the thin plates need to be leveled.

[0004] This application provides a method for leveling the overall assembly of a ship, including the following steps:

[0005] During the assembly stage, starting from the center line of the hull, respectively towards the bow and stern, and along the height direction of the hull, in the order from bottom to top, first two decks, and then the bulkheads between the two decks, the multiple hull overall assembly modules are sequentially heated and leveled layer by layer, and during the heating and leveling process, avoid the leveling construction line formed before the assembly.

[0006] In the above technical solution, further, when there is a deformed area on the deck or the bulkhead, first judge whether the plates directly above the supporting members on the side of the deformed area and in the adjacent area have been heated and leveled. In the first case, if this position has been subjected to heating and leveling construction, directly heat and level the plates of the deformed area from both sides of the deformed area towards the middle according to the preset multi-segment leveling construction line, where multiple segments of the leveling construction line are sequentially arranged along the length direction and width direction of the deformed area;

[0007] In the second case, if this position has not been subjected to heating and leveling construction, first heat and level the plates directly above the supporting members on the side of the deformed area and in the adjacent area, and then heat and level the deformed area; In the third case, if this position has not been subjected to heating and leveling construction, only heat and level the plates directly above or directly above and in the adjacent area of the supporting members on the side of the deformed area.

[0008] In any of the above technical solutions, further, the preset leveling construction line in the deformed area is an inclined construction line, and multiple inclined construction lines are arranged in an array along the length direction and width direction of the deformed area, and construction is carried out from both sides of the deformed area towards the middle according to the leveling construction line; or

[0009] The leveling construction line is a T-shaped leveling construction line. A plurality of the T-shaped leveling construction lines are arranged in sequence along the length direction and the width direction of the deformation area, and construction is carried out from both sides of the deformation area towards the middle according to the leveling construction line; any one of the T-shaped leveling construction lines is composed of inclined lines at an angle of 45° with the width direction of the deformation area; or

[0010] The leveling construction line is an X-shaped leveling construction line, and a plurality of the X-shaped leveling construction lines are arranged in two columns extending along the length direction of the support member. One column of the X-shaped leveling construction lines is arranged on one side of the deformation area, and the other column of the X-shaped leveling construction lines is arranged on the opposite side of the deformation area; or

[0011] The leveling construction line is an X-shaped leveling construction line, and a plurality of the X-shaped leveling construction lines are arranged in multiple columns extending along the length direction of the support member. The multiple columns of the X-shaped leveling construction lines are sequentially arranged at intervals along the width direction of the deformation area, and construction is carried out from both sides of the deformation area towards the middle according to the leveling construction line.

[0012] In any of the above technical solutions, further, for the second case, first heat and level the plate member in the area directly above the support member on the side of the deformation area. Among them, the leveling construction lines involved are multiple straight construction lines arranged at intervals along the length direction of the support member;

[0013] An inclined construction line is arranged between any two adjacent straight construction lines.

[0014] In any of the above technical solutions, further, after the plate member in the area directly above the support member is heated and leveled, it is offset by a preset distance towards the deformation area relative to the support member, and then the plate member is heated and corrected; among them, the leveling construction lines involved are multiple straight construction lines arranged at intervals along the length direction of the support member; an inclined construction line is arranged between any two adjacent straight construction lines.

[0015] In any of the above technical solutions, further, after the plate members in the area directly above and adjacent to the support member are heated and leveled, then according to the preset multi-segment leveling construction line, and directly from both sides of the deformation area towards the middle, the plate members in the deformation area are heated and leveled.

[0016] In any of the above technical solutions, further, for the second case, only the plate member in the area directly above or the area directly above and adjacent to the support member on the side of the deformation area is heated and leveled.

[0017] In any of the above technical solutions, further, for the second case, when performing heat straightening on the plate members directly above and in the vicinity of the support member on the side of the deformed area, the construction sequence is to first construct on the plate member directly above the support member on the side of the deformed area, then offset a preset distance towards the deformed area, and then construct on the area adjacent to the deformed area.

[0018] In any of the above technical solutions, further, the construction lines involved are one or more rows of straightening construction lines extending along the length direction of the support member. And when the construction lines involved are multiple rows of straightening construction lines, one row of straightening construction lines is located on the plate member directly above the support member, and the rest are obtained by offsetting with the support member as the reference.

[0019] In any of the above technical solutions, further, each row of straightening construction lines includes straight construction lines or a combination of straight construction lines and inclined construction lines. And when including straight construction lines and inclined construction lines, the straight construction lines and the inclined construction lines are arranged alternately.

[0020] In any of the above technical solutions, further, the heat straightening method is electromagnetic induction heat straightening, and includes deep heating and surface heating.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows:

[0022] During the erection stage, by using the ship total block erection and straightening method provided by the present application, each hull total block module is straightened in accordance with the erection sequence, which helps with equipment assembly, reduces the input of auxiliary materials in the later stage, and reduces the weight of the hull itself, which helps to improve the load-bearing capacity of the hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is the process diagram provided in the first embodiment of the present application;

[0025] Figure 2 It is the process diagram provided in the second embodiment of the present application;

[0026] Figure 3 It is the process diagram provided in the third embodiment of the present application;

[0027] Figure 4 It is the process diagram provided in the fourth embodiment of the present application;

[0028] Figure 5 It is the process diagram provided for the fifth embodiment of this application;

[0029] Figure 6 It is the process diagram provided for the sixth embodiment of this application;

[0030] Figure 7 It is the process diagram provided for the seventh embodiment of this application;

[0031] Figure 8 It is the process diagram provided for the eighth embodiment of this application;

[0032] Figure 9 It is the process diagram provided for the ninth embodiment of this application;

[0033] Figure 10 It is the process diagram provided for the tenth embodiment of this application;

[0034] Figure 11 It is the process diagram provided for the eleventh embodiment of this application;

[0035] Figure 12 It is the process diagram provided for the twelfth embodiment of this application;

[0036] Figure 13 It is the electromagnetic induction heating time-depth curve.

[0037] Reference numerals:

[0038] 1 - ship plate, 2 - support member. Detailed implementation manners

[0039] Next, the technical solutions of this application will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments.

[0040] Generally, the components of the embodiments of this application described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is required to be protected, but only represents the selected embodiments of this application.

[0041] Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of this application.

[0042] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0043] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] The following refers to Figures 1 to 13 Describe the ship total assembly leveling method according to some embodiments of the present application.

[0045] The present application provides a ship total assembly leveling method, including the following steps:

[0046] In the assembly stage, starting from the center line of the hull, respectively towards the bow and stern, and along the height direction of the hull, in the order from bottom to top, first two decks, and then the bulkheads between the two decks, the multiple hull total assembly modules are sequentially heated and leveled layer by layer, and during the heating and leveling process, avoid the leveling construction line formed before the assembly.

[0047] It can be seen that in the assembly stage, leveling each hull total assembly module according to the assembly order helps with equipment assembly, reduces the input of auxiliary materials in the later stage, and reduces the weight of the hull itself, which helps to improve the load-bearing capacity of the hull.

[0048] And for each hull total assembly module, during the leveling process, the following three situations will occur. Specifically, when there is a deformed area on the deck or bulkhead, first judge whether the plate members directly above and in the adjacent area of the support member 2 on the side of the deformed area have been heated and leveled. In the first situation, if this position has been subjected to heating and leveling construction, then directly according to the preset multi-segment leveling construction line, and heat and level the plate members of the deformed area from both sides of the deformed area towards the middle. Among them, the multi-segment leveling construction line is sequentially arranged along the length direction and width direction of the deformed area;

[0049] In the second case, if heat straightening construction has not been carried out at this position, first heat straighten the plate members directly above the supporting member 2 on the side of the deformed area and in the adjacent area, and then heat straighten the deformed area;

[0050] In the third case, if heat straightening construction has not been carried out at this position, only heat straighten the plate members directly above the supporting member 2 on the side of the deformed area or directly above and in the adjacent area.

[0051] Correspondingly, Examples 1 to 5 are mainly for the second case, and the specific examples are given, that is, when the deck or the bulkhead forms a deformed area, and it is judged that the plate members of the ship directly above the supporting member 2 on the side of the deformed area and in the adjacent area have not undergone heat straightening construction, first heat straighten the plate members of the ship directly above the supporting member 2 on the side of the deformed area and in the adjacent area, and then heat straighten the deformed area. The specific situation is as follows:

[0052] Example 1

[0053] When the deck or the bulkhead forms a deformed area, and the plate members of the ship directly above the supporting member 2 on the side of the deformed area and in the adjacent area have not undergone heat straightening construction, first heat straighten the plate members of the ship directly above the supporting member 2 on the side of the deformed area and in the adjacent area (where the supporting member 2 is the hard stop in shipbuilding, and it is connected to the ship plate member 1 by welding), and then heat straighten the deformed area. Specifically as follows:

[0054] Figure 1 The deformed area is shown. This deformed area is convex, and the maximum deformation of this convex structure is between 20 mm and 40 mm. Note that this is only an example, and the deformed area is not limited to convexity, and the maximum deformation is not limited to the above.

[0055] The method for straightening the concave-convex deformation of the local area of the ship thin plate provided by this embodiment includes the following steps:

[0056] Step 101: First, heat correct the ship plate member 1 directly above the two supporting members 2. Specifically, first construct according to the straight construction line, that is, the first straight construction line. When all the straight construction lines are constructed, construct according to the oblique construction line, that is, the first oblique construction line, between two adjacent straight construction lines. Note: The oblique construction line forms an acute angle with the straight construction line;

[0057] Step 102: Deviate a preset distance relative to the support member 2 towards the deformation area of the ship plate 1, and then perform heat straightening on the ship plate 1. Specifically, first construct according to the straight construction lines. After all the straight construction lines are completed, construct according to the inclined construction lines between two adjacent straight construction lines. Further, preferably, the distance a1 between two columns of straight construction lines is 15 mm - 20 mm; the distance b1 between any two adjacent straight construction lines is 160 mm - 170 mm.

[0058] Step 103: Then perform heat straightening on the deformation area of the ship plate 1 between two adjacent support members 2. The specific construction sequence is:

[0059] First, construct a series of inclined construction lines numbered 7 on the left side of the deformation area (the inclined construction lines here are also the third inclined construction lines), then construct a series of inclined construction lines numbered 7 on the right side of the deformation area, then construct a series of inclined construction lines numbered 8 on the left side, and then construct a series of inclined construction lines numbered 8 on the right side. According to this sequence, construct from the side of the deformation area towards the center, that is, construct in sequence according to numbers 7, 8, 9, 10 until number 11.

[0060] Of course, it is not limited to this. Other construction sequences can also be selected according to actual needs. For example, construct along a row of inclined construction lines in the width direction of the deformation area. For example, for the first row of inclined construction lines, first construct the inclined construction line numbered 7 on the left side, then construct the inclined construction line numbered 7 on the right side, then construct the inclined construction line numbered 8 on the left side, and then construct the inclined construction line numbered 8 on the right side. According to this sequence, construct from the side of the deformation area towards the center. After the construction of the first row of inclined construction lines is completed, then construct the second row of inclined construction lines, and so on.

[0061] Step 103: Let the heated ship plate 1 cool naturally or by water cooling.

[0062] According to the structure described above, first heat the ship plate 1 above the two support members 2 on both sides of the deformation area, then construct from the left and right sides of the deformation area towards the middle, gradually reducing the deformation amount of the deformation area, and finally completely flatten the deformation area. Moreover, the construction method using the inclined construction lines arranged in an array is simple and convenient to operate, and has a relatively high working efficiency. Since the ship plate 1 is straightened, the input of later auxiliary materials is reduced, and the weight of the hull itself is reduced, which helps to improve the load-bearing capacity of the hull.

[0063] In addition, the inclined construction lines can not only compensate for the deformation in the width direction, but also appropriately compensate for the deformation in the length direction, improving the overall straightening effect.

[0064] Note: If the ship's plate 1 above the support members 2 on both sides of the deformed area has been subjected to thermal straightening before this straightening process, then this position can be skipped from straightening, and instead, the deformed area can be directly straightened. Or, even if the ship's support plate 1 above the support members 2 on both sides of the deformed area has been subjected to thermal straightening, but there is still space in each row of straightening lines, construction can also be supplemented in this space, and then the deformed area can be constructed.

[0065] Furthermore, preferably, the thermal straightening method is electromagnetic induction thermal straightening, which has a fast heating speed, more localized heating in a limited area, and more precise temperature control. At the same time, it avoids the problem in the prior art that after thermal straightening by firework straightening, a large amount of water cooling is required, resulting in a large amount of water covering the entire deck and posing a safety hazard to the installation of electrical equipment.

[0066] Furthermore, preferably, the deep penetration heating in electromagnetic heating is adopted in this embodiment. Deep penetration heating means that if long-time heating is used, on the upper surface of the steel plate, the temperature stabilizes at the Curie temperature (about 700 °C), and at the same time, the heat conducts to the bottom surface, so that the temperature difference between the upper and bottom surfaces of the steel plate decreases rapidly. This will cause strong deformation on both sides of the steel plate, and as a result, the steel plate appears to thicken. Deep penetration heating can be applied above or near the beam (or stiffener), and can also be used for positive convex and concave parts. Straightening is completed by shrinking the steel plate, rather than pressing down the protruding part forcefully, so there is no risk of the protruding part reappearing elsewhere. Straightening a very small area often causes the surrounding area to become tighter. Therefore, the advisable method is to straighten the largest possible area to fully distribute this effect.

[0067] Specifically, in this embodiment, deep heating is selected for steps 101 and 102, and surface heating is selected for step 103. Figure 1 The dotted line in the figure represents surface heating, and the solid line represents deep heating.

[0068] Furthermore, preferably, the cooling method of the steel plate after heating should meet the requirements of Table 1.

[0069] Table 1 Cooling method of the steel plate after heating

[0070]

[0071] Combined with the above, it can be seen that after overall straightening, the flatness should be measured after the steel plate is completely cooled. Generally, when the ambient temperature is 10 °C or below, the steel plate is air-cooled for more than 5 hours; when the ambient temperature is 11 °C - 25 °C, the steel plate is air-cooled for more than 7 hours; when the ambient temperature is above 25 °C, the steel plate is air-cooled for more than 8 hours.

[0072] Embodiment 2

[0073] SeeFigure 2 As shown, the technical solutions of the second embodiment are generally the same as those of the first embodiment, but there are also several differences, which will be elaborated below:

[0074] The first difference is that the maximum deformation amount of the deformation area, that is, the convex structure, is greater than 40 mm. Note that this is only an example, and the deformation area is not limited to the convex, and the maximum deformation amount is not limited to the above.

[0075] The second difference is that the specific construction sequence in this embodiment is:

[0076] First, construct a series of T-shaped leveling lines numbered 7 on the left side of the deformation area, and then construct a series of T-shaped leveling lines numbered 7 on the right side of the deformation area. After that, construct a series of T-shaped leveling lines numbered 8 on the left side, and then construct a series of T-shaped leveling lines numbered 8 on the right side. According to this sequence, construct from the side of the deformation area to the center, that is, construct in the order of number 7, number 8, number 9 until number 10. Of course, it is not limited to this, and other construction sequences can also be selected according to actual needs. For example, construct along multiple rows of oblique construction lines in the width direction of the deformation area. For example, for the first row of T-shaped leveling lines, first construct the T-shaped leveling line numbered 7 on the left side, and then construct the T-shaped leveling line numbered 7 on the right side. After that, construct the T-shaped leveling line numbered 8 on the left side, and then construct the T-shaped leveling line numbered 8 on the right side. According to this sequence, construct from the side of the deformation area to the center. After the construction of the first row of oblique construction lines is completed, then construct the second row of oblique construction lines, and so on.

[0077] Note: Any T-shaped leveling construction line is composed of inclined lines at a 45° angle to the width direction of the deformation area.

[0078] According to the structure described above, it can be seen that the density of the leveling construction lines in the deformation area is greater, that is, the leveling construction lines are more dense, woven into a net covering the deformation area. After the ship plate 1 is heated and cooled, the shrinkage amount is greater. Therefore, it is suitable for leveling in areas with particularly large deformation amounts, and the leveling effect is better. Moreover, only by constructing from both sides of the deformation area to the middle can the deformation area be gradually flattened and new convex structures be avoided.

[0079] In addition, any T-shaped leveling construction line is composed of inclined lines at a 45° angle to the width direction of the deformation area, which can better level the concave and convex irregular deformations in multiple directions in a local area, with better effect and a 30% relative efficiency improvement.

[0080] Embodiment Three

[0081] See Figure 3As shown, the technical solution of Embodiment 3 is generally the same as that of Embodiment 1, but there are also several differences, which will be elaborated below:

[0082] The first difference is that: the back of the deformed area of the ship plate 1 is wrapped with insulating and sound-proof materials, and the maximum deformation amount of the deformed area of the ship plate 1, that is, the maximum height of the positive protrusion, is 21 mm or less. Note: The deformed area and the maximum deformation amount are only examples, not limited to this;

[0083] The second difference is that: it has Step 101 in Embodiment 1, but does not have Step 102. That is to say, after heating and straightening directly above the support member 2, there is no need to offset and correct the deformed area anymore, but directly heat the surface of the convex part.

[0084] The third difference is that: it is different from Step 103 in Embodiment 1. Specifically, in this embodiment, two columns of leveling construction lines are arranged on the opposite sides of the deformed area. The specific construction sequence according to this leveling construction line is:

[0085] First, construct a series of inclined construction lines numbered 3 on the left side of the deformed area, then construct a series of inclined construction lines numbered 3 on the right side, then construct a series of straight construction lines numbered 4 on the left side, then construct a series of straight construction lines numbered 4 on the left and right sides, then construct a series of straight construction lines numbered 5 on the left side, and then construct a series of straight construction lines numbered 5 on the right side. That is to say, construct in the order of number 3, number 4 until number 5, and construct on the right side in the same order.

[0086] Of course, not limited to this. First, construct a series of inclined construction lines numbered 3 on the left side of the deformed area, and then construct a series of inclined construction lines numbered 4 on the left side (note that a series of inclined construction lines numbered 3 and the corresponding series of inclined construction lines numbered 4 just form multiple X-shaped leveling lines), and then construct a series of straight construction lines numbered 5 on the left side. That is to say, construct in the order of number 3, number 4 until number 5, and construct on the right side in the same order, or adopt other construction sequences.

[0087] The fourth difference is that: the electromagnetic heating method is different. This embodiment uses deep penetration heating + surface heating. The deep penetration heating has been elaborated above. Now, the surface heating will be elaborated: Surface heating specifically refers to: heating the surface of the steel plate until it reaches the temperature required for straightening. When there is a large temperature difference between the upper and lower surfaces of the steel plate, the bottom surface of the steel plate maintains its own internal stress, while on its upper surface, induction heating will cause relatively large deformation, resulting in the bowing of the steel plate. Therefore, this heating method can only be applied to the convex surface of the steel plate.

[0088] The ship plate member 1 above the support member 2 uses deep heating, the deformed area uses surface heating, and deep heating is still used between the two. For the sake of distinction, Figure 1 The solid line represents deep heating, and the dashed line represents surface heating.

[0089] According to the structure described above, it can be known that the deformation amount of this embodiment is smaller than that of the first and second embodiments. Therefore, only two columns of leveling construction lines need to be set on both sides of the deformed area, which can not only meet the leveling requirements, but also is convenient for construction and has high efficiency.

[0090] In addition, the method provided in this embodiment can be applied to the case where the reverse side is already wrapped with insulating and soundproof materials. This insulating and soundproof material can withstand a high temperature of 530 degrees, and the surface heating adopted can control the temperature on the reverse side below 500 degrees, which can avoid damage to the material after heating. Moreover, the leveling construction lines are not arranged in the entire deformed area, so it also plays a role in protecting the insulating and soundproof materials.

[0091] The fifth difference is that: the distance b3 between any two adjacent straight construction lines among the multi-segment straight construction lines above different support members 2 is 160 mm - 170 mm, and some distances c3 are 70 mm - 100 mm. Of course, it is not limited to this and can be selected according to actual needs.

[0092] Embodiment Four

[0093] See Figure 4 As shown, the technical solutions of Embodiment Four and Embodiment One are generally the same, but there are also several differences, which will be elaborated below:

[0094] The first difference is that: the reverse side of the deformed area of the ship plate member 1 is wrapped with insulating and soundproof materials, and the maximum deformation amount of the deformed area of the ship plate member 1, that is, the maximum height of the positive protrusion, is greater than 21 mm. Note: The deformed area and the maximum deformation amount are only examples and are not limited to this;

[0095] The first difference is that: it is different from steps 101 and 102 in Embodiment One, that is, there is no diagonal construction line between two adjacent straight construction lines, and the operation of heating according to the diagonal construction line is missing.

[0096] The second difference is that: it is different from step 103 in Embodiment One. The specific construction sequence in this embodiment is:

[0097] First, construct according to a series of inclined construction lines numbered 2 on the left side of the deformation area, then construct according to a series of inclined construction lines numbered 3 on the right side of the deformation area, and then construct according to a series of inclined construction lines numbered 4 on the left side (note that the series of inclined construction lines numbered 2 and the corresponding series of inclined construction lines numbered 4 exactly form multiple X-shaped leveling lines). Then construct according to a series of inclined construction lines numbered 5 on the right side. In this order, construct from the side of the deformation area towards the center, that is, construct in the order of number 2, number 3, number 4, number 5, number 6, number 7, number 8, number 9 until number 10. Of course, it is not limited to this, and other construction orders can also be selected according to actual needs. For example, construct along a row of leveling lines in the width direction of the deformation area. For the first row of leveling lines, first construct according to the inclined construction line numbered 2 on the left side, then construct according to the inclined construction line numbered 3 on the right side, then construct according to the inclined construction line numbered 4 on the left side, and then construct according to the inclined construction line numbered 5 on the right side. In this order, construct from the side of the deformation area towards the center. After constructing according to the inclined construction lines of the first row, then construct according to the inclined construction lines of the second row, and so on.

[0098] The third difference: The ship plate 1 above the support member 2 uses deep heating, and the deformation area uses surface heating. For the convenience of distinction, Figure 1 The solid line in the figure represents deep heating, and the dashed line represents surface heating.

[0099] According to the structure described above, it can be known that the deformation amount of this embodiment is smaller than that of the first and second embodiments, but larger than that of the third embodiment. Therefore, it is necessary to reasonably arrange X-shaped leveling construction lines in the entire deformation area to meet the leveling requirements.

[0100] In addition, the method provided in this embodiment can be used for the case where the reverse side is already wrapped with insulating and soundproof materials. This insulating and soundproof material can withstand a high temperature of 530 degrees. The surface heating used can control the temperature on the reverse side below 500 degrees, which can avoid material damage after heating. Moreover, the construction is carried out gradually from the side of the deformation area towards the center, avoiding concentrated heating in a certain area, and can also play a role in protecting the insulating and soundproof materials.

[0101] The fourth difference is that: Further, preferably, the distance b4 between any two adjacent straight construction lines among the multi-segment straight construction lines above different support members 2 is 160 mm - 170 mm, and some distances c4 are 70 mm - 100 mm. Of course, it is not limited to this, and can be selected according to actual needs.

[0102] Note: Embodiments 1 to 5 mainly focus on the second case, and specific embodiments are given. For the first case, that is, when it is determined that the plate members directly above the support member 2 on the side of the deformed area and in the adjacent area have undergone heat straightening construction, then directly according to the preset multi-segment straightening construction lines, and heat straighten the plate members of the deformed area from both sides of the deformed area towards the middle. Among them, when the multi-segment straightening construction lines are arranged sequentially along the length direction and width direction of the deformed area, correspondingly, remove the first step and the second step in the foregoing embodiments, and directly execute the third step, that is, directly perform heat straightening treatment on the deformed area. In addition, if there is no oblique straightening construction line set between the straightening construction lines directly above the support member 2 before this step, then before directly straightening the deformed area, an oblique straightening construction line can be set between two adjacent straightening lines directly above the support member 2, and heat straightening is first performed according to this oblique straightening construction line, and then the deformed area is straightened. Specifically, in combination with the foregoing embodiments, it will not be exemplified one by one.

[0103] Embodiments 5 to 12 described later are implementation manners in which when the deck or the bulkhead forms a deformed area, and the plate members directly above the support member 2 on the side of the deformed area and in the adjacent area have not undergone heat straightening construction, only the plate members directly above or directly above and in the adjacent area of the support member 2 on the side of the deformed area are heat straightened.

[0104] Embodiment 5

[0105] See Figure 5 As shown, an embodiment of the present application provides a method for overall straightening of deformed thin plates of a ship, which is applied to a ship plate member 1, and this ship plate member 1 is used as a deck. A support member 2 is provided below the ship plate member 1;

[0106] When the structures on the opposite sides of the ship plate member 1 located on the support member 2 are both concave, that is, a deformed area is formed, and the maximum deformation amount is 5 mm - 8 mm, the method for overall straightening of deformed thin plates of a ship includes the following steps:

[0107] Step 501: Use an ink line or a stone pen to draw a set of straightening lines on the structure of the ship plate member 1 directly above the support member 2. Among them, the set of straightening lines includes multiple straight construction lines arranged at intervals along the length direction of the support member 2, and an oblique construction line is provided between any two adjacent straight construction lines, and the oblique construction line forms an acute angle with the straight construction line.

[0108] Step 502. Select the heating method and time: Deep penetration heating is a penetrating heating method. Specifically, deep penetration heating means heating the steel plate through a leveling device so that the front and back surfaces of the steel plate are heated through within a specified time, and the temperature is stabilized at 700 °C. After the steel plate cools, it shrinks uniformly to achieve the purpose of leveling the steel plate.

[0109] Before leveling construction, according to Figure 10 , preliminarily set the heating time corresponding to the preset temperature (such as 700 °C) when deep penetration heating different steel plate thicknesses. For the ship plate corresponding to the support member 2, that is, the hard spot position, 1 to 2 seconds can be added on the basis of the heating time curve to ensure deep penetration. And use a temperature sensor to detect in real time whether the temperature of the heating area on the back of the ship plate reaches 700 °C. When it reaches 700 °C, the debugging is completed and the final heating time is determined.

[0110] Step 503. Along the length direction of the support member 2, first heat the ship plate 1 along all the straight construction lines, and then fill in the heating along the oblique construction lines, that is, perform heating and correction in sequence according to the construction lines numbered 1 and numbered 2. Here, it should be noted that preferably, after all the construction lines numbered 1 are completed, then the construction line numbered 2 is constructed.

[0111] Step 504. The ship plate 1 after heating is naturally cooled or water-cooled.

[0112] Based on the method described above, since the deformation amount is relatively small, only the ship thin plate above the support member 2 needs to be deeply penetrated and heated along multiple leveling lines. After the heated area cools, the surrounding materials shrink uniformly and release stress, so as to achieve the purpose of leveling the steel plate, thereby reducing the application of auxiliary materials, lowering the cost, and contributing to lightweight design and improving the load-bearing capacity of the ship.

[0113] Among them, the straight construction line extending along the length direction of the support member 2 can compensate for the deformation in the width direction, and it is relatively simple, which is convenient for subsequent heating operations and improves work efficiency; among them, the oblique construction line can not only compensate for the deformation in the width direction, but also appropriately compensate for the deformation in the length direction, improving the overall leveling effect.

[0114] Further, preferably, the distance b5 between two adjacent straight construction lines is 160 mm - 170 mm.

[0115] In this embodiment, preferably, the heating and leveling method is electromagnetic induction heating and leveling. Electromagnetic induction heating and leveling means that an induced current is generated in the steel plate through an electromagnetic inductor to achieve the purpose of quickly and deeply heating a certain concentrated area. After the heated area cools, the surrounding materials contract uniformly, releasing stress to achieve the purpose of leveling the steel plate. Its working principle is based on the heat generated by the parasitic current, and the parasitic current is generated in the metal material by the action of the electromagnetic field. The standard of its effectiveness is based on the effective control of shrinkage. In the case of this heating method, the heating is more confined to a limited local area, and the temperature control is also more precise.

[0116] It can be seen that as an alternative to open-flame operation for thin plate heating and leveling, the electromagnetic induction heat leveling method has the advantage that, compared with other leveling methods, electromagnetic induction heating can save up to 80% of the time for leveling the ship deck and vertical wall panels, that is, the bulkhead described below. In addition, electromagnetic leveling is simple to operate and easy to master. After basic training for a few hours, a qualified heat leveling operator can be trained.

[0117] In this embodiment, preferably, in the leveling step, the following operation requirements are further included:

[0118] (1) In principle, electromagnetic leveling should be carried out under the condition of strong structural constraints on both sides. For example, fixtures can be fixed at the edges of the ship plate member 1, or during the construction process, the edges of the ship plate member 1 have been constrained by the bulkhead;

[0119] (2) The maximum stress of the ship plate member 1 appears in the area with the smallest protrusion, that is, the area with the smallest bulge. For example, the stress of the ship plate directly above the hard stop, that is, the support member 2, is the largest. Therefore, each leveling preferably starts from the area with the smallest protrusion, that is, the ship plate directly above the support member 2.

[0120] (3) For positions with large deformations, the position where the concave and convex transition occurs should be found for leveling.

[0121] (4) Superimposed leveling is not allowed in principle at the same position.

[0122] (5) For large opening and large hole structures, channel steel should be added to strengthen to prevent structural deformation after leveling due to insufficient strength of the main board.

[0123] Embodiment Six

[0124] See Figure 6 As shown, when the ship plate member 1 is used as a deck, and the structure on one side of the ship plate member 1 located at the support member 2 is concave, and the maximum deformation is 5 mm - 8 mm, the overall leveling method for the deformation of the ship thin plate includes the following steps:

[0125] Step 601: Use an ink line or a stone pencil to draw a leveling line group on the structure of the ship plate 1 directly above the support member 2, and then use an ink line or a stone pencil to draw an offset leveling line group by offsetting a preset distance toward the concave side of the ship plate 1 with the support member 2 as the reference;

[0126] Both the leveling line group and the offset leveling line group include multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2. The straight construction lines of the leveling line group and the straight construction lines of the offset leveling line group are alternately arranged along the length direction of the support member 2, and the adjacent two overlap along the length direction of the support member 2. (Note: The first straight construction line and the second straight construction line both belong to the straight construction line, only with different names, so no distinction will be made here, and they are all exemplified by the straight construction line. Similarly, the first inclined construction line and the second inclined construction line in the following text both belong to the inclined construction line, only with different names, so no distinction will be made either, and they are all exemplified by the inclined construction line)

[0127] Step 602: The same as step 502, which will not be elaborated here.

[0128] Step 203: First, heat and correct the ship plate 1 according to the leveling line group, and then according to the offset leveling line group, that is, perform construction according to the construction lines of No. 1 and No. 2;

[0129] Step 603: The same as step 504, which will not be elaborated here.

[0130] Based on the method described above, it can be seen that in addition to deeply penetrating and heating the ship thin plate above the support member 2 according to multiple leveling lines, it is also moved a certain distance toward the concave side and then the ship thin plate is deeply penetrated and heated, increasing the shrinkage amount of the surrounding materials after the heated area cools, accelerating the release of stress, so as to achieve the purpose of leveling the steel plate. In addition, the arrangement of the multiple leveling lines is regular, which is convenient for operation and helps to improve work efficiency.

[0131] Further, preferably, the distance a6 between the offset leveling line group and the leveling line group is 15 mm - 20 mm; the distance b6 between any two adjacent straight construction lines in the offset leveling line group and the leveling line group is 70 mm - 100 mm.

[0132] Note: For the detailed process requirements involved in the steps, reference can be made to Embodiment 1, which will not be elaborated one by one here.

[0133] Embodiment Seven

[0134] See Figure 7As shown, when the ship plate 1 is used as a deck, and the structures on both opposite sides of the support member 2 of the ship plate 1 are concave, and the maximum deformation is 9 mm - 12 mm, the overall flattening method for the deformation of the ship thin plate includes the following steps:

[0135] Step 701: Use a string line or a stone pen to draw a set of flattening lines on the structure of the ship plate 1 directly above the support member 2, and then use a string line or a stone pen to draw an offset flattening line set by offsetting a preset distance from the support member 2 towards the concave sides of the ship plate 1;

[0136] Both the flattening line set and the offset flattening line set include multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2. The straight construction lines of the flattening line set and the straight construction lines of the offset flattening line set are alternately arranged along the length direction of the support member 2, and the adjacent two overlap along the length direction of the support member 2.

[0137] Step 702: The same as step 502, which will not be elaborated here.

[0138] Step 703: First, heat and correct the ship plate 1 according to the flattening line set, and then sequentially heat and correct it according to the two offset flattening line sets, that is, perform construction according to the construction lines of No. 1, No. 2, and No. 3;

[0139] Step 704: The same as step 504, which will not be elaborated here.

[0140] Based on the method described above, when the structures on both opposite sides of the support member 2 of the ship plate 1 have concave deformations, on the basis of deeply penetrating and heating the ship thin plate above the support member 2 according to multiple flattening lines, it is also necessary to move a certain distance to both sides of the depression and then deeply penetrate and heat the ship thin plate, so as to form a certain amount of shrinkage from both sides of the depression area, thereby flattening the middle depression area. In addition, the arrangement of the multiple flattening lines is regular, which is convenient for operation and helps to improve work efficiency.

[0141] Further, preferably, the distance a7 between the offset flattening line set and the flattening line set is 15 mm - 20 mm; the distance b7 between any two adjacent straight construction lines in the offset flattening line set and the flattening line set is 70 mm - 100 mm.

[0142] Note: For the detailed process requirements involved in the steps, reference can be made to Embodiment 1, which will not be elaborated one by one here.

[0143] Embodiment VIII

[0144] See Figure 8As shown, when the ship plate 1 is used as a deck, and the structure on one side of the ship plate 1 located on the support member 2 is concave, and the structure on the other side is convex, and the maximum deformation of the concave and convex structures is 9 mm - 12 mm, the overall leveling method for the deformation of the ship thin plate further includes the following steps:

[0145] Step 801: Use a string line or a stone pen to draw a leveling line group on the structure of the ship plate 1 directly above the support member 2, and then use a string line or a stone pen to draw an offset leveling line group by offsetting a preset distance from the support member 2 towards both concave sides of the ship plate 1;

[0146] Both the leveling line group and the offset leveling line group include multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2. The straight construction lines of the leveling line group and the straight construction lines of the offset leveling line group are alternately arranged along the length direction of the support member 2, and the adjacent two are overlapped along the length direction of the support member 2.

[0147] Step 802: The same as step 502, which will not be elaborated here.

[0148] Step 803: First, heat and correct the ship plate 1 according to the leveling line group, and then sequentially heat and correct the ship plate 1 according to the two offset leveling line groups, that is, perform construction according to the construction lines of No. 1, No. 2, and No. 3;

[0149] Step 804: The same as step 504, which will not be elaborated here.

[0150] Based on the method described above, it can be seen that for the structures on the opposite sides of the ship plate 1 located on the support member 2 that are both deformed, specifically, one side is concave and the other side is convex. First, deeply penetrate and heat the ship thin plate above the support member 2 according to multiple leveling lines. After the ship thin plate cools, it shrinks and deforms, playing a role in roughly stretching the middle deformed area. Then, move a certain distance to both sides of the concave part and deeply penetrate and heat the ship thin plate again. A certain amount of shrinkage is respectively formed from both sides of the deformed part, playing a role in further flattening. That is, according to the deformation amount, the number of leveling lines is increased, and then the shrinkage amount after the material is heated is increased, thereby flattening the ship thin plate.

[0151] Further, preferably, the distance a8 between the offset leveling line group and the leveling line group is 15 mm - 20 mm; the distance b8 between any two adjacent straight construction lines in the offset leveling line group and the leveling line group is 70 mm - 100 mm.

[0152] Note: For the detailed process requirements involved in the steps, reference can be made to Embodiment 1, which will not be elaborated one by one here.

[0153] Embodiment Nine

[0154] See Figure 9 As shown, when the ship plate member 1 is used as a deck, and the structures on the opposite sides of the ship plate member 1 located at the support member 2 are both concave, and the maximum deformation is 13 mm - 20 mm, the overall flattening method for the deformation of the ship thin plate includes the following steps:

[0155] Step 901: Use an ink line or a stone pen to draw a flattening line group on the structure of the ship plate member 1 directly above the support member 2. Among them, the flattening line group includes multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2;

[0156] Draw oblique construction lines between any two adjacent straight construction lines in the flattening line group, and the oblique construction lines form an acute angle with the straight construction lines. Finally, use an ink line or a stone pen to draw an offset flattening line group by offsetting a preset distance from the support member 2 towards the concave sides of the ship plate member 1;

[0157] Among them, the offset flattening line group also includes multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2. The straight construction lines of the flattening line group and the straight construction lines of the offset flattening line group are alternately arranged along the length direction of the support member 2, and the adjacent two overlap along the length direction of the support member 2.

[0158] Step 902: The same as step 502, which will not be elaborated here.

[0159] Step 903: First, according to the flattening line group (and note that all the straight construction lines are heated first, and then the oblique construction lines are filled for heating), and then the ship plate member 1 is heated and corrected in sequence according to the two offset flattening line groups, that is, the construction is carried out according to the construction lines of serial number 1, serial number 2, serial number 3, and serial number 4;

[0160] Step 904: The same as step 504, which will not be elaborated here.

[0161] Based on the method described above, it can be known that for the structures on the opposite sides of the ship plate member 1 located at the support member 2 with certain deformations, and this deformation is greater than that in the previous embodiment, on the basis of deeply penetrating and heating the ship thin plate above the support member 2 according to multiple straight construction lines, in the adjacent two straight flattening heating operations, the step of oblique flattening heating and filling is added to increase the shrinkage amount after heating the ship thin plate, roughly flatten the sunken area, and then move a certain distance towards the two sides of the depression respectively and then deeply penetrate and heat the ship thin plate to play a further flattening role, that is, according to the deformation amount, the number and form of the flattening lines are increased, thereby increasing the shrinkage amount after heating the material, and then flattening the ship thin plate.

[0162] Among them, the straight construction line extending along the length direction of the support member 2 can compensate for the deformation in the width direction, and it is relatively simple, facilitating the subsequent heating operation and improving work efficiency. Among them, the inclined construction line can not only compensate for the deformation in the width direction, but also appropriately compensate for the deformation in the length direction, improving the overall flattening effect.

[0163] Note: For the detailed process requirements involved in the steps, reference can be made to Embodiment 1, which will not be elaborated here one by one.

[0164] Furthermore, preferably, the distance a9 between the offset flattening line group and the flattening line group is 15 mm - 20 mm; the distance b9 between any two adjacent straight construction lines in the flattening line group is 160 mm - 170 mm; the distance c9 between any two adjacent straight construction lines in the offset flattening line group is 70 mm - 100 mm.

[0165] Embodiment Ten

[0166] See Figure 10 As shown, when the ship plate 1 is used as a deck and the structures on both opposite sides of the ship plate 1 located on the support member 2 are both concave, and the maximum deformation is greater than or equal to 21 mm, the overall flattening method for the deformation of the ship thin plate includes the following steps:

[0167] Step 1001: Use an ink line or a stone pen to draw a flattening line group on the structure of the ship plate 1 directly above the support member 2. Among them, the flattening line group includes multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2. The straight construction lines of the flattening line group and the straight construction lines of the offset flattening line group are alternately arranged along the length direction of the support member 2, and the adjacent two overlap along the length direction of the support member 2;

[0168] Draw an inclined construction line, that is, the first inclined construction line, between any two adjacent straight construction lines in the flattening line group, and the inclined construction line forms an acute angle with the straight construction line. Finally, use an ink line or a stone pen to draw an offset flattening line group by offsetting a preset distance towards the concave sides of the ship plate 1 with the support member 2 as the reference;

[0169] Among them, the offset flattening line group includes multiple straight construction lines, and the multiple straight construction lines are arranged at intervals along the length direction of the support member 2. The straight construction lines of the flattening line group and the straight construction lines of the offset flattening line group are alternately arranged along the length direction of the support member 2, and the adjacent two overlap along the length direction of the support member 2;

[0170] Draw an inclined construction line, that is, the second inclined construction line, between any two adjacent straight construction lines in the offset flattening line group, and the inclined construction line forms an acute angle with the straight construction line.

[0171] Step 1002 is the same as step 502 and will not be described in detail here.

[0172] Step 1003, first heat and correct the ship plate 1 according to the leveling line group, and then follow the two offset leveling line groups in sequence. Note: For both the leveling line group and the offset leveling line group, all straight construction lines are heated first, and then the oblique construction lines are heated. That is to say, construction is carried out according to the construction lines of sequence number 1, sequence number 2, sequence number 3, sequence number 4, sequence number 5 and sequence number 6.

[0173] Step 1004 is the same as step 504 and will not be described in detail here.

[0174] Based on the method described above, it can be known that due to the large increase in deformation, in addition to the deep penetration heating of the ship thin plate above the supporting member 2 according to multiple straight construction lines, and deep penetration heating offset by a certain distance on the left and right sides, the oblique construction line heating steps are filled between all two adjacent straight construction lines along the length direction of the supporting member 2 to increase the shrinkage of the ship plate 1 after cooling, thereby flattening the large concave area. That is, according to the deformation, the number and form of the leveling lines are increased, thereby increasing the shrinkage of the material after heating, and then flattening the ship thin plate.

[0175] Among them, the straight construction line extending along the length direction of the supporting member 2 can compensate for the deformation in the width direction, and is relatively simple, convenient for subsequent heating operations, and improves work efficiency; among them, the oblique construction line can not only compensate for the deformation in the width direction, but also appropriately compensate for the deformation in the length direction, thereby improving the overall leveling effect.

[0176] Further, preferably, further, preferably, the distance a10 between the offset leveling line group and the leveling line group is 15mm-20mm; the distance b10 between any two adjacent straight construction lines in the offset leveling line group and the leveling line group is 160mm-170mm.

[0177] Note: For detailed process requirements involved in the steps, please refer to Example 1, which will not be repeated here.

[0178] Embodiment 11

[0179] See also Figure 11 As shown, this embodiment provides a leveling method suitable for the ship coaming wall, which can be specifically referred to the above-mentioned deck leveling method, except that: in the second heating, the positive protruding part is heated as close to the coaming wall as possible (Note: in the heating and leveling step, the construction is carried out according to the construction lines of sequence numbers 1, 2 and 3); when the ship plate 1 is used as the coaming wall, and the leveling method of the coaming wall can refer to the deck leveling method according to the deformation amount, the difference is that: the protrusion near the coaming wall (see Figure 11), during the second heating, as close to the enclosure wall as possible, heat and flatten the forward protruding part, i.e., the convex part.

[0180] Based on the method described above, it can be seen that the surface of the enclosure wall leveled by this method is flat and meets the requirements.

[0181] In addition, further, preferably, the distance a11 between the offset leveling line group and the leveling line group is 15 mm - 20 mm; the distance b11 between any two adjacent straight construction lines in the offset leveling line group and the leveling line group is 70 mm - 100 mm.

[0182] Example Twelve

[0183] See Figure 12 As shown, this example provides a leveling method applicable to the enclosure wall of a ship, which can specifically refer to the leveling method of the deck described above. The difference lies in:

[0184] Before heating, when there is an extreme concave near the corner joint of the enclosure wall, a jack can be used to support the concave part before leveling, and then heat the surrounding area;

[0185] When there is an extreme protrusion, i.e., a convexity, near the corner joint of the enclosure wall, a jack can be used to press the concave part before leveling, and then heat the surrounding area;

[0186] In addition, during the second heating, as close to the enclosure wall as possible, heat the forward protruding part (note: during the heating and leveling step, construct according to the construction lines of No. 1, No. 2, and No. 3);

[0187] Based on the method described above, it can be seen that the surface of the ship plate 1 leveled by this method is flat and meets the requirements.

[0188] Note: For Examples One to Eight, the leveling lines in the leveling line group need to be actually drawn, while the leveling lines in the offset leveling line group may not need to be drawn, and heating and leveling can also be directly carried out depending on the visual position of the operator.

[0189] In addition, further, preferably, the distance a12 between the offset leveling line group and the leveling line group is 15 mm - 20 mm; the distance b12 between any two adjacent straight construction lines in the offset leveling line group and the leveling line group is 70 mm - 100 mm.

[0190] Finally, it should be noted that 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A ship assembly erection leveling method, characterized in that, it includes the following steps: In the erection stage, starting from the midline of the hull and moving towards the bow and stern respectively, and along the height direction of the hull, in the order from bottom to top, first two decks, and then the bulkheads between the two decks, heat and level multiple ship assembly modules layer by layer in sequence, and avoid the leveling construction line formed before erection during the heat leveling process; When the deck or the bulkhead has a deformed area, first judge whether the plates directly above the supporting members on the side of the deformed area and in the adjacent area have been heat leveled. In the first case, if heat leveling construction has been carried out at this position, directly heat level the plates of the deformed area according to the preset multi-segment leveling construction line and from both sides of the deformed area towards the middle. Among them, multiple segments of the leveling construction line are arranged in sequence along the length direction and width direction of the deformed area; In the second case, if heat leveling construction has not been carried out at this position, first heat level the plates directly above the supporting members on the side of the deformed area and in the adjacent area, and then heat level the deformed area; In the third case, if heat leveling construction has not been carried out at this position, only heat level the plates directly above or directly above and in the adjacent area of the supporting members on the side of the deformed area.

2. The ship assembly erection leveling method according to claim 1, characterized in that, the preset leveling construction line in the deformed area is an inclined construction line, and multiple of the inclined construction lines are arranged in an array along the length direction and width direction of the deformed area, and construction is carried out from both sides of the deformed area towards the middle according to the leveling construction line; or the leveling construction line is a T-shaped leveling construction line, multiple of the T-shaped leveling construction lines are arranged in sequence along the length direction and width direction of the deformed area, and construction is carried out from both sides of the deformed area towards the middle according to the leveling construction line; any one of the T-shaped leveling construction lines is composed of inclined lines at a 45° angle to the width direction of the deformed area; or the leveling construction line is an X-shaped leveling construction line, and multiple of the X-shaped leveling construction lines are arranged in two columns extending along the length direction of the supporting member, where one column of the X-shaped leveling construction lines is arranged on one side of the deformed area, and the other column of the X-shaped leveling construction lines is arranged on the opposite side of the deformed area; or the leveling construction line is an X-shaped leveling construction line, and multiple of the X-shaped leveling construction lines are arranged in multiple columns extending along the length direction of the supporting member, and multiple columns of the X-shaped leveling construction lines are arranged at intervals in sequence along the width direction of the deformed area, and construction is carried out from both sides of the deformed area towards the middle according to the leveling construction line.

3. The ship assembly erection leveling method according to claim 1, characterized in that, For the second case, first heat level the plates in the area directly above the supporting members on the side of the deformed area. Among them, the leveling construction lines involved are multiple straight construction lines arranged at intervals along the length direction of the supporting member. There is an inclined construction line between any two adjacent straight construction lines.

4. The ship assembly and leveling method according to claim 1, characterized in that, after the plate heating and leveling above the support member in the positive upper area is completed, it is offset by a preset distance relative to the support member towards the deformation area, and then the plate is heated and corrected; wherein, the leveling construction lines involved are a plurality of straight construction lines arranged at intervals along the length direction of the support member; there is an inclined construction line between any two adjacent straight construction lines.

5. The ship assembly and leveling method according to claim 4, characterized in that, after the plate heating and leveling above and in the adjacent area of the support member is completed, then according to the preset multi-segment leveling construction lines, and directly from both sides of the deformation area towards the middle, the plate in the deformation area is heated and leveled.

6. The ship assembly and leveling method according to claim 1, characterized in that, for the second case, only the plate above or above and in the adjacent area of the support member on the side of the deformation area is heated and leveled.

7. The ship assembly and leveling method according to claim 6, characterized in that, for the second case, when heating and leveling the plate above and in the adjacent area of the support member on the side of the deformation area, the construction sequence is to first construct the plate above the support member on the side of the deformation area, then offset by a preset distance towards the deformation area, and then construct the area adjacent to the deformation area.

8. The ship assembly and leveling method according to claim 7, characterized in that, the construction lines involved are one or more columns of leveling construction lines extending along the length direction of the support member, and when the construction lines involved are multiple columns of leveling construction lines, one column of leveling construction lines is located on the plate above the support member, and the rest are obtained by offsetting with the support member as the reference.

9. The ship assembly and leveling method according to claim 8, characterized in that, each column of leveling construction lines includes straight construction lines or straight construction lines and inclined construction lines, and when including straight construction lines and inclined construction lines, the straight construction lines and inclined construction lines are arranged alternately.

10. The ship assembly and leveling method according to any one of claims 1 to 8, characterized in that, the heating and leveling method is electromagnetic induction heating and leveling, and includes deep heating and surface heating.

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