Ship anchor chock welding method

Abstract

The invention discloses a ship anchor chock welding method, which comprises the following steps of: connecting a hawse pipe lower plate and a hawse pipe upper plate by adopting an automatic submerged arc welding x-shaped butt joint groove when an anchor chain pipe is welded, and setting the angle of an inner welding groove and an outer welding groove of the hawse pipe to be 55-60 degrees; an anchor mouth coaming, an outer plate, an anchor mouth seat plate, a groove welded between the anchor mouth and the hawse pipe, a groove gap and a reserved root are further arranged. By setting the welding groove parameters of different parts of the ship anchor platform, the shape of a molten pool can be stabilized, the concentration ratio of welding arcs can be optimized, welding stress can be effectively dispersed, welding deformation can be reduced, the welding quality is guaranteed, the overall production efficiency is improved, and the manufacturing requirements of different types of ships can be met. And by optimizing the groove design, material consumption and energy consumption in the welding process are effectively controlled, and the welding cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and particularly relates to a welding method for a ship anchor platform. Background Art

[0002] In the field of shipbuilding, as a core component of a ship mooring device, the structural performance of the anchor platform is directly related to the navigation safety and mooring reliability of the ship. The anchor platform not only has to bear the static load when the ship is berthed, but also resist dynamic loads such as wind and wave impacts and tidal changes. Therefore, the stability and reliability of its structure are important considerations in ship design. Welding, as a key process in the manufacture of the anchor platform, has a decisive impact on the strength, fatigue resistance and service life of the anchor platform in terms of its design and manufacturing quality.

[0003] At present, the welding design of ship anchor platforms mainly adopts traditional groove welding processes. However, in practical applications, it is found that unreasonable groove shapes lead to unstable and unevenly distributed welding molten pool shapes, reducing the welding efficiency. The traditional and easy groove design forms stress concentration areas at the root of the weld. Especially under the action of alternating loads, the problem of too high stress concentration coefficient is likely to occur, seriously affecting the overall strength of the ship anchor platform. During the welding process of traditional grooves, due to the heat being concentrated in a local area, large welding deformations are likely to occur. In addition, during long-term use, due to the combined action of welding residual stress and environmental corrosion, defects such as cracks are likely to appear in the welding area of the anchor platform. These defects often originate from the heat affected zone of the weld and gradually expand to the base metal, seriously threatening the safe use of the ship. Summary of the Invention

[0004] In view of the defects existing in the prior art, the present application provides a welding method for a ship anchor platform to solve the technical problems such as low welding efficiency, too high stress concentration coefficient, and easy generation of welding deformation existing in the welding of ship anchor platforms in the prior art.

[0005] In order to achieve the purpose of the above-mentioned invention, the technical solution provided by the present invention is as follows:

[0006] A welding method for a ship anchor platform, wherein the ship anchor platform includes an anchor chain barrel, an anchor lip, an anchor lip seat plate, an anchor lip apron and an anchor lip bracket. The anchor chain barrel passes through the main deck and the outer plate in sequence and is welded to the main deck and the outer plate. The upper end face of the anchor chain barrel is flush with the overlapping plate on the main deck, and the lower end face of the anchor chain barrel extends out of the outer plate. The anchor lip seat plate is welded and installed on the lower end face of the anchor chain barrel. An anchor chain hole corresponding to the inner hole of the anchor chain barrel is opened in the center of the anchor lip seat plate. An anchor lip apron is installed between the anchor lip seat plate and the outer plate. The bottom contour of the anchor lip apron corresponds to the outer contour of the anchor lip seat plate and is welded. The top surface of the anchor lip apron is welded to the outer plate. Several anchor lip brackets are evenly installed on the outer wall at the lower end of the anchor chain barrel. The anchor lip brackets are coplanar with the axis of the anchor chain barrel. The anchor lip is welded and installed on the bottom surface of the anchor lip seat plate;

[0007] The welding method of the ship anchor platform includes the following steps:

[0008] Welding of the hawse pipe: The hawse pipe includes a lower hawse pipe plate and an upper hawse pipe plate. The lower hawse pipe plate and the upper hawse pipe plate are welded and connected by X-type butt welding. The angles of the welding grooves inside and outside the hawse pipe at the welding joint of the lower hawse pipe plate and the upper hawse pipe plate are 55 - 60°. After welding the lower hawse pipe plate and the upper hawse pipe plate, the welding joint is polished smoothly.

[0009] Welding of the anchor lip gusset: The connection between the anchor lip gusset and the outer plate is welded and connected in the form of a deep penetration welding groove, with a welding groove angle of 45° and a root opening of 0 - 3 mm.

[0010] Welding of the connection nodes of the anchor lip, the anchor lip seat plate, and the upper anchor lip gusset: A 45° groove is opened for the connection between the anchor lip and the anchor lip seat plate, with a groove depth of 50 mm; a 25° groove is opened for the connection between the anchor lip gusset and the upper anchor lip seat plate, with a groove gap of 2 - 6 mm; after welding the anchor lip, the anchor lip seat plate, and the upper anchor lip gusset, it is polished smoothly.

[0011] Welding of the connection nodes of the anchor lip, the anchor lip seat plate, and the lower anchor lip gusset: A 45° groove is opened for the connection between the anchor lip and the anchor lip seat plate, with a groove depth of 50 mm; a 40° groove is opened for the connection between the anchor lip gusset and the lower anchor lip seat plate, with a groove gap of 2 - 6 mm; after welding the anchor lip, the anchor lip seat plate, and the upper anchor lip gusset, it is ground flat.

[0012] Welding of the connection nodes of the anchor lip, the anchor lip seat plate, and the upper hawse pipe plate: A 25° groove is opened for the connection between the anchor lip and the anchor lip seat plate, with a groove depth of 50 mm. After welding, it is polished smoothly with a smooth arc transition; a 40° welding groove is used for the connection between the upper part of the hawse pipe and the anchor lip seat plate, with a groove gap of 2 - 6 mm. When welding the upper part of the hawse pipe and the anchor lip seat plate, a steel backing pad is pre-installed on the reverse side. After welding the upper part of the hawse pipe and the anchor lip seat plate, it is ground flat.

[0013] Welding of the connection nodes of the anchor lip, the anchor lip seat plate, and the lower hawse pipe plate: A 45° groove is opened for the connection between the anchor lip and the anchor lip seat plate, with a groove depth of 50 mm. After welding, it is polished smoothly with a smooth arc transition; a 20° welding groove is used for the connection between the lower hawse pipe plate and the anchor lip seat plate, with a groove gap of 2 - 6 mm. When welding the lower part of the hawse pipe and the anchor lip seat plate, a steel backing pad is pre-installed on the reverse side.

[0014] In one embodiment, the angles of the welding grooves inside and outside the hawse pipe at the welding joint of the lower hawse pipe plate and the upper hawse pipe plate are 55°. After welding the lower hawse pipe plate and the upper hawse pipe plate, 100% UT and PT are performed on the welding joint.

[0015] In one embodiment, the thickness of the lower hawse pipe plate is 10 - 15 mm greater than the thickness of the upper hawse pipe plate.

[0016] In one embodiment, the lower plate of the hawsepipe is welded to the main deck through a first lapping plate, and the upper plate of the hawsepipe is welded to the main deck through a second lapping plate. The first lapping plate and the second lapping plate are both connected to the main deck by fillet welds around the perimeter.

[0017] In one embodiment, the upper fillet weld height of the first lapping plate and the second lapping plate with the main deck is 16 mm, and the lower fillet weld height is 12 mm. The upper surface of the first lapping plate and the lower plate of the hawsepipe is welded with a single-sided V-groove, and the root gap of the groove is 0 - 1 mm; the lower surface of the first lapping plate and the lower plate of the hawsepipe is welded with a perimeter fillet weld, and the fillet weld height is 10 mm. The upper surface of the second lapping plate and the upper plate of the hawsepipe is welded with a single-sided V-groove, and the root gap of the groove is 0 - 1 mm; the lower surface of the second lapping plate and the upper plate of the hawsepipe is welded with a perimeter fillet weld, and the fillet weld height is 10 mm.

[0018] In one embodiment, the lower plate of the hawsepipe, the upper plate of the hawsepipe and the outer plate are all welded and connected with a bevel groove on the front side and a backing strip on the reverse side. When the upper plate of the hawsepipe is welded to the outer plate, the front bevel angle is 40°, first weld with a backing strip on the reverse side, and then fill weld; when the lower plate of the hawsepipe is welded to the outer plate, the front bevel angle is 35°, first weld with a backing strip on the reverse side, and then fill weld.

[0019] Compared with the prior art, the present application has at least the following beneficial effects:

[0020] Improve welding efficiency: A reasonable welding groove design can not only stabilize the shape of the molten pool, but also optimize the concentration of the welding arc, making it act better on the bottom of the groove. This design reduces the energy loss during the welding process and improves the welding speed. Compared with traditional welding methods, using a suitable groove angle and depth can increase the welding efficiency by more than 30%. In addition, a reasonable groove design can also reduce the repeated operations during the welding process, further shortening the welding time and improving the overall production efficiency.

[0021] Guarantee welding quality: A reasonable groove angle and depth design helps the uniform distribution of the welding molten pool, thus reducing the generation of welding defects such as porosity, slag inclusion, and lack of fusion. By optimizing the groove shape, the fluidity of the molten pool during the welding process is improved, and the uniformity and density of the weld seam are significantly increased. This not only enhances the mechanical properties of the welded joint, but also extends the service life of the welded structure. At the same time, a reasonable groove design can also reduce the finishing work after welding and lower the subsequent processing cost.

[0022] Reducing welding deformation: The design of different groove angles and depths can effectively disperse welding stress and reduce welding deformation. Traditional welding groove design often leads to heat concentration in local areas, prone to large welding deformation, affecting the dimensional accuracy and appearance quality of the structure. By adjusting the groove angle and depth according to the structural characteristics, the welding heat can be evenly distributed, reducing local overheating, and thus effectively controlling welding deformation. This is particularly important for ship structures requiring high precision, ensuring the stability of the structural dimensions after welding and reducing the workload of subsequent correction.

[0023] Strong practicability: The welding design of the ship anchor platform of the present invention has wide applicability and can meet the manufacturing requirements of different types of ships. Whether it is a large ship or a small ship, this welding design principle can be adopted for welding. This design is not only applicable to the conventional welding of ship anchor platforms, but can also be adjusted according to the structural characteristics of specific ships to adapt to different welding process requirements. In addition, this design can also meet the needs of different ship manufacturing enterprises, with strong versatility and flexibility, and can be widely applied to various ship manufacturing scenarios.

[0024] Reducing welding costs: Through optimizing the groove design, the material consumption and energy consumption in the welding process are effectively controlled. Reasonable groove angles and depths reduce the waste of welding materials, while improving the welding speed, reducing labor costs and equipment usage costs. In addition, due to the improvement of welding quality and the reduction of deformation, subsequent repair and correction work are also greatly reduced, further reducing the overall manufacturing cost.

[0025] Environmental benefits: Reasonable groove design not only improves welding efficiency and quality, but also reduces the smoke, dust and harmful gases generated during welding. By optimizing the welding process, the consumption of welding materials and energy usage are reduced, minimizing the environmental impact of the welding process. For ship manufacturing enterprises, this can not only improve production efficiency, but also meet increasingly stringent environmental requirements and enhance the social responsibility of the enterprise.

[0026] Adapting to automated welding: With the continuous development of welding technology, the application of automated welding equipment in shipbuilding is becoming more and more widespread. Reasonable groove design can better meet the requirements of automated welding equipment, improving the stability and consistency of the welding process. By optimizing the groove shape, automated welding equipment can more accurately control welding parameters, ensuring the stability of welding quality. For ship manufacturing enterprises with large-scale production, this can significantly improve production efficiency and product quality. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the ship anchor platform in the embodiment of the present application;

[0028] Figure 2 isFigure 1 View B-B in the middle;

[0029] Figure 3 is Figure 2 Enlarged view of the L circle in the middle;

[0030] Figure 4 is Figure 1 Enlarged view of the N circle in the middle;

[0031] Figure 5 is Figure 1 Enlarged view of the M circle in the middle;

[0032] Figure 6 is Figure 1 Enlarged view of the O circle in the middle;

[0033] Figure 7 is Figure 1 Enlarged view of the R circle in the middle;

[0034] Figure 8 is Figure 1 Enlarged view of the P circle in the middle;

[0035] Figure 9 is Figure 1 Enlarged view of the Q circle in the middle;

[0036] Figure 10 is Figure 1 Enlarged view of the S circle in the middle;

[0037] Figure 11 is Figure 1 Enlarged view of the V circle in the middle;

[0038] Figure 12 is Figure 1 Enlarged view of the T circle in the middle;

[0039] Figure 13 is Figure 1 Enlarged view of the U circle in the middle.

[0040] Reference numerals: 1, anchor lip; 2, anchor lip seat plate; 3, anchor lip gusset plate; 4, anchor lip elbow plate; 5, lower plate of the hawsepipe; 6, upper plate of the hawsepipe; 7, first lap plate; 8, second lap plate; 9, steel backing; 10, main deck; 11, outer plate. Detailed implementation manners

[0041] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be described below through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0042] The terms used in this disclosure are for the purpose of describing particular embodiments only and are not intended to limit the disclosure. The singular forms "a", "the", and "said" used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0044] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installed", "connected", and "joined" should be understood in a broad sense. For example, it may be a mechanical connection, or it may be the communication inside two components. It may be directly connected, or it may be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0045] For a better understanding of the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0046] This embodiment provides a welding method for a ship anchor platform, as Figure 1 shown. The ship anchor platform includes an anchor chain barrel, an anchor lip 1, an anchor lip seat plate 2, an anchor lip apron 3, and an anchor lip bracket 4. The anchor chain barrel passes through the main deck 10 and the outer plate 11 in sequence and is welded to the main deck 10 and the outer plate 11. The upper end face of the anchor chain barrel is flush with the main deck 10, and the lower end face of the anchor chain barrel extends out of the outer plate 11. The anchor lip seat plate 2 is welded and installed on the lower end face of the anchor chain barrel. An anchor chain hole corresponding to the inner hole of the anchor chain barrel is opened in the center of the anchor lip seat plate 2. An anchor lip apron 3 is installed between the anchor lip seat plate 2 and the outer plate 11. The bottom contour of the anchor lip apron 3 corresponds to the outer contour of the anchor lip seat plate 2 and is welded. The top surface of the anchor lip apron 3 is welded to the outer plate 7. Several anchor lip brackets 4 are evenly installed on the outer wall at the lower end of the anchor chain barrel. The anchor lip brackets 4 are coplanar with the axis of the anchor chain barrel. The anchor lip 1 is welded and installed on the bottom surface of the anchor lip seat plate 2. The bottom of the anchor lip 1 is a circular arc to prevent the anchor lip 1 from scratching the anchor when it contacts the anchor.

[0047] The welding method for the ship anchor platform includes the following steps:

[0048] Welding of the anchor chain barrel: As Figure 2 andFigure 3 As shown in the figure, the hawsepipe includes a lower hawsepipe plate 5 and an upper hawsepipe plate 6. The lower hawsepipe plate 5 and the upper hawsepipe plate 6 are connected by X-type butt welding. The angles of the welding grooves inside and outside the hawsepipe at the welding joint of the lower hawsepipe plate 5 and the upper hawsepipe plate 6 are 55 - 60°. In this embodiment, the angle of the welding grooves inside and outside the hawsepipe is 55°. After welding the lower hawsepipe plate 5 and the upper hawsepipe plate 6, the welding joint is polished smoothly. After welding, 100% UT (ultrasonic testing) and PT (penetrant testing) are carried out on the welding joint to ensure the quality and integrity of the welding joint.

[0049] When the anchor and the chain move in the hawsepipe, the anchor and the chain usually move on the upper surface of the lower hawsepipe plate 5. To increase the wear resistance of the lower hawsepipe plate 5, the thickness of the lower hawsepipe plate 5 is usually greater than that of the upper hawsepipe plate 6. The thickness of the lower hawsepipe plate 5 is 10 - 15 mm greater than that of the upper hawsepipe plate 6. In this embodiment, the thickness of the lower hawsepipe plate 5 is 12 mm greater than that of the upper hawsepipe plate 6.

[0050] The upper end surface of the hawsepipe is welded and connected to the main deck 10 through a lap plate, as Figure 4 and Figure 5 shown. The lower hawsepipe plate 5 is welded and connected to the main deck 10 through a first lap plate 7, and the upper hawsepipe plate 6 is welded and connected to the main deck 10 through a second lap plate 8. The first lap plate 7 and the second lap plate 8 are both connected to the main deck 10 by fillet welds around the perimeter. The upper fillet weld height of the first lap plate 7 and the second lap plate 8 with the main deck 10 is 16 mm, and the lower fillet weld height is 12 mm. The upper surface of the first lap plate 7 and the lower hawsepipe plate 5 is welded with a single-sided V-groove, and the root gap of the groove is 0 - 1 mm; the lower surface of the first lap plate 7 and the lower hawsepipe plate 5 is welded with a fillet weld around the perimeter, and the fillet weld height is 10 mm. Similarly, the upper surface of the second lap plate 8 and the upper hawsepipe plate 6 is welded with a single-sided V-groove, and the root gap of the groove is 0 - 1 mm; the lower surface of the second lap plate 8 and the upper hawsepipe plate 6 is welded with a fillet weld around the perimeter, and the fillet weld height is 10 mm.

[0051] As Figure 8 and Figure 9 shown, the lower hawsepipe plate 5, the upper hawsepipe plate 6 and the outer plate 11 are all connected by welding with a groove opened on the front side and a backing pad added on the reverse side. As Figure 8 shown, when the upper hawsepipe plate 6 is welded and connected to the outer plate 11, the front groove angle is 40°. First, weld with a backing pad added on the reverse side, and then fill the weld. As Figure 9 shown, when the lower hawsepipe plate 5 is welded and connected to the outer plate 11, the front groove angle is 35°. First, weld with a backing pad added on the reverse side, and then fill the weld.

[0052] Welding of the anchor lip shroud: As Figure 6 and Figure 7As shown, the connection between the anchor lip gusset plate 3 and the outer plate 11 is welded using a full penetration weld groove form. The welding groove angle is 45°, and the root gap is 0 - 3 mm.

[0053] Welding of the connection nodes of the anchor lip 1 with the anchor lip seat plate 2 and the upper anchor lip gusset plate 3: As Figure 10 shown, for the connection between the anchor lip 1 and the anchor lip seat plate 2, a 45° groove is opened with a groove depth of 50 mm; for the connection between the anchor lip gusset plate 3 and the upper anchor lip seat plate 2, a 25° groove is opened with a groove gap of 2 - 6 mm; after welding the anchor lip 1, the anchor lip seat plate 2, and the upper anchor lip gusset plate 3, it is polished smoothly to make the connection between the three transition smoothly.

[0054] Welding of the connection nodes of the anchor lip 1 with the anchor lip seat plate 2 and the lower anchor lip gusset plate 3: As Figure 11 shown, for the connection between the anchor lip 1 and the anchor lip seat plate 2, a 45° groove is opened with a groove depth of 50 mm; for the connection between the anchor lip gusset plate 3 and the lower anchor lip seat plate 2, a 40° groove is opened with a groove gap of 2 - 6 mm; after welding the anchor lip 1, the anchor lip seat plate 2, and the upper anchor lip gusset plate 3, it is ground flat.

[0055] Welding of the connection nodes of the anchor lip 1 with the anchor lip seat plate 2 and the upper part plate 6 of the anchor chain barrel: As Figure 12 shown, for the connection between the anchor lip 1 and the anchor lip seat plate 2, a 25° groove is opened with a groove depth of 50 mm. After welding, it is polished smoothly for a smooth transition of the arc; for the connection between the upper part 6 of the anchor chain barrel and the anchor lip seat plate 2, a 40° welding groove is used with a groove gap of 2 - 6 mm. When welding the upper part 6 of the anchor chain barrel and the anchor lip seat plate 2, a steel backing pad 9 is pre - installed on the reverse side. After welding the upper part 6 of the anchor chain barrel and the anchor lip seat plate 2, it is ground flat.

[0056] Welding of the connection nodes of the anchor lip 1 with the anchor lip seat plate 2 and the lower part plate 5 of the anchor chain barrel: As Figure 13 shown, for the connection between the anchor lip 1 and the anchor lip seat plate 2, a 45° groove is opened with a groove depth of 50 mm. After welding, it is polished smoothly for a smooth transition of the arc; for the connection between the lower part plate 5 of the anchor chain barrel and the anchor lip seat plate 2, a 20° welding groove is used with a groove gap of 2 - 6 mm. When welding the lower part 5 of the anchor chain barrel and the anchor lip seat plate 2, a steel backing pad 9 is pre - installed on the reverse side.

[0057] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that; it is still possible to modify the specific implementation manners of the invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A method for welding a ship anchor platform, the ship anchor platform comprises an anchor chain barrel, an anchor lip, an anchor lip seat plate, an anchor lip circumference plate and an anchor lip toggle plate, the anchor chain barrel passes through the main deck and the outer plate in sequence and is welded to the main deck and the outer plate, the upper end surface of the anchor chain barrel is flush with the lap plate on the main deck, the lower end surface of the anchor chain barrel extends out of the outer plate, the anchor lip seat plate is welded and installed on the lower end surface of the anchor chain barrel, an anchor chain hole corresponding to the size of the inner hole of the anchor chain barrel is opened in the center of the anchor lip seat plate, the anchor lip circumference plate is installed between the anchor lip seat plate and the outer plate, the bottom surface contour of the anchor lip circumference plate corresponds to the outer contour of the anchor lip seat plate and is welded, the top surface of the anchor lip circumference plate is welded to the outer plate, a plurality of anchor lip toggle plates are evenly installed on the outer wall of the lower end of the anchor chain barrel, the anchor lip toggle plate is coplanar with the axis of the anchor chain barrel, and the anchor lip is welded and installed on the bottom surface of the anchor lip seat plate; It is characterized in that The ship anchor welding method includes the following steps: Welding of anchor chain barrel: The anchor chain barrel includes the lower plate and the upper plate of the anchor chain barrel. The lower plate and the upper plate of the anchor chain barrel are connected by X-type butt welding. The angle of the inner and outer welding grooves of the anchor chain barrel at the welding point of the lower plate and the upper plate of the anchor chain barrel is 55-60°. After welding the lower plate and the upper plate of the anchor chain barrel, the welding point is polished and smooth; Welding of anchor lip panel: The anchor lip panel and the outer plate are connected by deep fusion welding groove, with a welding groove angle of 45° and a root of 0 to 3 mm; Welding of the connection nodes between the anchor lip, the anchor lip seat plate and the upper anchor lip enclosure plate: the anchor lip and the anchor lip seat plate are connected with a 45° groove, with a groove depth of 50mm; the anchor lip enclosure plate and the upper anchor lip seat plate are connected with a 25° groove, with a groove gap of 2 to 6mm; the anchor lip, the anchor lip seat plate and the upper anchor lip enclosure plate are polished smooth after welding; Welding of the connection nodes between the anchor lip, the anchor lip seat plate and the lower anchor lip enclosure plate: the anchor lip and the anchor lip seat plate are connected with a 45° groove, with a groove depth of 50mm; the anchor lip enclosure plate and the lower anchor lip seat plate are connected with a 40° groove, with a groove gap of 2 to 6mm; the anchor lip, the anchor lip seat plate and the upper anchor lip enclosure plate are welded and then ground; Welding of the connection nodes between the anchor lip and the anchor lip seat plate and the upper plate of the anchor chain tube: the anchor lip and the anchor lip seat plate are connected with a 25° groove, the groove depth is 50mm, and they are polished and smooth after welding, with a smooth arc transition; the upper part of the anchor chain tube and the anchor lip seat plate are connected with a 40° welding groove, and the groove gap is 2-6mm. When welding the upper part of the anchor chain tube and the anchor lip seat plate, a steel liner is pre-installed on the reverse side, and the upper part of the anchor chain tube and the anchor lip seat plate are ground flat after welding; Welding of the connection nodes between the anchor lip and the anchor lip seat plate and the lower plate of the anchor chain tube: the anchor lip and the anchor lip seat plate are connected with a 45° groove, the groove depth is 50mm, and they are polished and smooth after welding, with a smooth arc transition; the lower plate of the anchor chain tube and the anchor lip seat plate are connected with a 20° welding groove, the groove gap is 2 to 6mm, and a steel liner is pre-installed on the reverse side when welding the lower part of the anchor chain tube to the anchor lip seat plate.

2. The ship anchor welding method according to claim 1, characterized in that: The angle of the inner and outer welding grooves of the anchor chain barrel at the welding of the lower plate of the anchor chain barrel and the upper plate of the anchor chain barrel is 55°. After welding, 100% UT and PT are performed on the welding joints of the lower plate of the anchor chain barrel and the upper plate of the anchor chain barrel.

3. The ship anchor welding method according to claim 1, characterized in that: The thickness of the lower plate of the anchor chain tube is 10-15 mm greater than the thickness of the upper plate of the anchor chain tube.

4. The ship anchor welding method according to claim 1, characterized in that: The lower plate of the anchor chain barrel is welded to the main deck through the first lap plate, and the upper plate of the anchor chain barrel is welded to the main deck through the second lap plate. The first lap plate and the second lap plate are connected to the main deck around the perimeter by fillet welds.

5. The ship anchor welding method according to claim 4, characterized in that: The upper weld leg height of the first lap plate and the second lap plate to the main deck is 16mm, and the lower weld leg height is 12mm. The first lap plate and the upper surface of the lower plate of the anchor chain tube are welded with a single-sided V-shaped groove, and the gap at the root of the groove is 0-1mm; the first lap plate and the lower surface of the lower plate of the anchor chain tube adopt a perimeter fillet weld with a weld leg height of 10mm, and the upper surface of the second lap plate and the upper plate of the anchor chain tube adopt a single-sided V-shaped groove welding with a groove root gap of 0-1mm; the second lap plate and the lower surface of the upper plate of the anchor chain tube adopt a perimeter fillet weld with a weld leg height of 10mm.

6. The ship anchor welding method according to claim 1, characterized in that: The lower plate of the anchor chain barrel, the upper plate of the anchor chain barrel and the outer plate are all connected by beveling on the front side and welding with a gasket on the back side. When the upper plate of the anchor chain barrel is welded to the outer plate, the front bevel angle is 40°, and a gasket is added on the back side for welding, and then the welding is repaired; when the lower plate of the anchor chain barrel is welded to the outer plate, the front bevel angle is 35°, and a gasket is added on the back side for welding, and then the welding is repaired.

Images