CN112221905A

CN112221905A - Construction method of low-surface-energy antifouling paint for outer shell plate of ship hull

Info

Publication number: CN112221905A
Application number: CN202010989096.4A
Authority: CN
Inventors: 邢炳亮; 王晓民; 陈澄; 郭利雄
Original assignee: Guangzhou Shipyard International Co Ltd
Current assignee: Guangzhou Shipyard International Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-01-15

Abstract

The invention provides a construction method of low-surface-energy antifouling paint for an outer plate of a ship shell, which is characterized in that low-surface-energy antifouling combined paint is constructed on the straight bottom part of the outer plate of the ship shell, so that a coating obtained by the low-surface-energy antifouling combined paint is positioned on the outermost layer of the straight bottom part when a ship is in use, the low-surface-energy antifouling combined paint comprises the low-surface-energy antifouling paint, and the coating thickness of the low-surface-energy antifouling paint in the coating obtained by the low-surface-energy antifouling combined paint is 50-200 micrometers. The construction method of the low-surface-energy antifouling paint for the outer plate of the ship shell can save fuel consumption for ship operation.

Description

Construction method of low-surface-energy antifouling paint for outer shell plate of ship hull

Technical Field

The invention belongs to the technical field of ship painting, and particularly relates to a construction method of low-surface-energy antifouling paint for a hull outer plate.

Background

The existing outer ship shell plates are divided into a freeboard, a straight bottom and a flat bottom, the antifouling paint for the outer ship shell plates is generally applied to the flat bottom and the straight bottom, the flat bottom is constructed in a segmented stage, only one-degree antifouling paint is left in the construction of the straight bottom, and marine organisms are prevented from being attached to the surface of the outer ship shell to influence the ship operation by continuously releasing the organisms to kill the marine organisms. The common construction method is to design an anti-fouling paint with two degrees at the straight bottom and about 110 micrometers, and an anti-fouling paint with one degree at the flat bottom 9 and about 130 micrometers.

However, the above process has the following disadvantages:

1. after the self-polishing antifouling paint is coated according to the existing self-polishing antifouling paint process, the self-polishing antifouling paint prevents marine organisms from attaching by releasing a biological biocide, and has certain pollution to marine environment.

2. The coating of the common antifouling paint is not smooth enough, and the requirement of saving fuel oil loss cannot be met when the coating is applied to a straight bottom part.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a construction method of the low-surface-energy antifouling paint for the outer shell of the hull, which can save fuel consumption in the running process of a ship.

The invention provides a construction method of low-surface-energy antifouling paint for an outer plate of a ship shell, which is characterized in that low-surface-energy antifouling combined paint is constructed on the straight bottom part of the outer plate of the ship shell, so that when a ship is in use, a coating obtained by the low-surface-energy antifouling combined paint is positioned on the outermost layer of the straight bottom part, the low-surface-energy antifouling combined paint comprises the low-surface-energy antifouling paint, and the thickness of the coating of the low-surface-energy antifouling paint is 50-200 microns.

Preferably, a low surface energy antifouling combination paint is applied outside the primer coating system of the straight bottom portion, the primer coating system comprising a self-polishing antifouling paint coating, the self-polishing antifouling paint coating having a thickness of 50-120 microns.

Preferably, the primer coating system further comprises an anti-rust primer coating and a bottom connection paint coating, the anti-rust primer coating, the bottom connection paint coating and the self-polishing anti-fouling paint coating are sequentially arranged from inside to outside, the thickness of the anti-rust primer coating is 80-300 micrometers, and the thickness of the connection paint coating is 50-120 micrometers.

Preferably, the low-surface-energy antifouling composite paint further comprises a seal coat, the coating of the low-surface-energy antifouling composite paint is covered outside the coating of the seal coat, the coating of the seal coat is connected with the coating of the self-polishing antifouling paint, and the coating thickness of the seal coat is 50-200 microns.

Preferably, the coating thickness of the sealer is 50-150 microns.

Preferably, the low surface energy antifouling combination paint further comprises a connecting paint, and the coating of the connecting paint is positioned between the coating of the sealer and the coating of the low surface energy antifouling paint.

Preferably, the low surface energy antifouling combination paint is applied to the straight bottom part of the outer hull plate during the forward docking stage of the copay vessel.

Preferably, in a subsection stage before the forward docking stage of the traffic ship, the straight bottom part is firstly applied with 80-300 microns of anti-rust primer, then applied with 50-120 microns of connecting paint, and then applied with 50-120 microns of self-polishing anti-fouling paint to obtain a primer coating system.

Preferably, the coating thickness of the low surface energy antifouling paint is 80 to 180 micrometers.

Preferably, before the low-surface-energy antifouling combined paint is constructed, a sticky plastic film is adopted to protect the freeboard and flat bottom parts of the outer plate of the ship shell.

The construction method of the low-surface-energy antifouling paint for the outer plate of the ship shell can save fuel consumption for ship operation.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic structural view of an outer plate of a hull;

FIG. 2 is a schematic view illustrating a manufacturing process of an outer hull plate;

fig. 3 is a schematic view of the structure of the coating of the straight bottom part of the outer plate of the ship hull.

In the figure: 1. a segmentation stage; 2. a launching front stage; 3. an intermediate stage; 4. a ship-delivery forward docking stage; 5. ship handing; 7. freeboard; 8. straightening the bottom; 9. a flat bottom; 10. reloading the waterline; 61. an anti-rust primer coating; 62. the bottom is connected with a paint coating; 63. self-polishing antifouling paint coatings; 64. a coating of a sealer; 65. a coating of a tie coat; 66. coating of low surface energy antifouling paints.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a method for constructing a low surface energy dirty paint on an outer hull plate, in which the outer hull plate has a structure including a side 7, a straight bottom 8 and a flat bottom 9, and the straight bottom 8 and the flat bottom 9 are heavy waterlines 10. The ship manufacturing process in this embodiment includes in order: a subsection stage 1, a pre-launching stage 2, an intermediate stage 3, a ship-handing forward docking stage 4 and a ship-handing 5.

The construction method of the low surface energy dirty paint of the outer plate of the ship hull provided by the embodiment of the invention comprises the following steps: the low-surface-energy antifouling composite paint is applied to the straight bottom 8 part of the outer plate of the ship shell, so that when the ship is used, a coating obtained by the low-surface-energy antifouling composite paint is positioned on the outermost layer of the straight bottom 8 part, the low-surface-energy antifouling composite paint comprises the low-surface-energy antifouling paint, and the coating 66 of the low-surface-energy antifouling paint is 50-200 microns thick. The coating 66 of the low surface energy antifouling paint in this embodiment is located on the outermost layer of the straight bottom 8 portion.

According to the construction method of the low-surface-energy antifouling paint for the outer plate of the ship shell, the low-surface antifouling paint is constructed at the position of the straight bottom 8 with large resistance in the running process of the ship, the low-surface-energy antifouling paint is integrally formed into a film in one-step construction, the surface of the coating 66 of the low-surface-energy antifouling paint is smooth, the surface resistance of the ship shell is greatly reduced, and fuel consumption is saved in the operation process. And the low surface energy antifouling paint realizes the antifouling effect by preventing marine organisms from attaching due to low surface energy, no biocide is released, and the pollution to the marine environment is reduced. And 8 positions of the straight bottom are not provided with pier positions, so that the straight bottom is smooth, the one-step forming of the antifouling paint with the surface energy can be ensured, and the one-step forming effect of the antifouling paint with the low surface energy is optimal. Therefore, the low-surface-energy antifouling paint coating 66 with smaller resistance can be obtained by constructing the low-surface antifouling paint on the straight bottom 8, and the low hull surface resistance of the ship during navigation is better realized.

According to the construction method for the low-surface-energy dirty paint of the outer plate of the ship shell, the fuel consumption of the constructed ship is saved by about 8% every day. The fuel oil used by the ship in operation is about 3000 yuan per ton, the ship in operation uses about 50 tons of fuel oil per day, the ship sails about 200 days per year, and the low surface energy dirty paint construction method for the outer plate of the hull can save the cost of one ship per year: 50 ton/day × 8% × 3000 yuan/ton × 200 days ═ 240 ten thousand yuan.

The low surface energy antifouling paints referred to in this example are silicone low surface energy antifouling paints (SeaLion Topcoat), organofluorine low surface energy antifouling paints and silicone and organofluorine mixed low surface energy antifouling paints.

Referring to fig. 3, in a preferred embodiment, the low surface energy antifouling combination paint is applied outside the primer coating system of the straight bottom 8 portion, the primer coating system comprising a self-polishing antifouling paint coating 63, the self-polishing antifouling paint coating 63 having a thickness of 50-120 microns. A further preferred embodiment is a self-polishing antifouling paint coating 63 having a thickness of 60-100 microns. In this embodiment, the primer coating system can ensure better protection of the outer hull plate of the ship before the low surface energy antifouling combination paint is not coated during the manufacturing process of the ship. The self-polishing antifouling paint coating 63 can better play a role in temporary protection, and before the low-surface-energy antifouling composite paint in the manufacturing process of the ship is not coated, the self-polishing antifouling paint coating 63 can better prevent the straight bottom 8 from adsorbing sea creatures such as oyster and the like.

Referring to fig. 3, in a preferred embodiment, the primer coating system further includes an anti-corrosive primer coating 61 and a bottom connection paint coating 62, the anti-corrosive primer coating 61, the bottom connection paint coating 62 and the self-polishing anti-fouling paint coating 63 are sequentially disposed from inside to outside, the anti-corrosive primer coating 61 has a thickness of 80 to 300 micrometers, and the connection paint coating has a thickness of 50 to 120 micrometers. In a further preferred embodiment, the thickness of the rust inhibitive primer coating 61 is 200-300 microns, and the thickness of the connection paint coating is 60-100 microns.

Referring to FIG. 3, in a preferred embodiment, the low surface energy antifouling composition paint further comprises a sealer, and the resulting coating of the low surface energy antifouling composition paint has a coating 66 of the low surface energy antifouling paint overlying a coating 64 of the sealer, the coverage referred to in this embodiment as full or partial coverage. In this embodiment, a coating 64 of sealer is attached to the self-polishing antifouling paint coating 63, the sealer coating 64 being 50-200 microns thick. In a further preferred embodiment, the sealer coating 64 has a thickness of 50-150 microns. In still further preferred embodiments, the sealer coating 64 has a thickness of 80 microns, 90 microns, 100 microns, 110 microns, or 120 microns. The sealer referred to in this example may be an epoxy sealer. In the construction method of the low surface energy antifouling paint for the outer hull plate of the ship hull provided by the embodiment, the self-polishing antifouling paint coating 63 in the primer coating system of the straight bottom 8 part is sealed by adopting a sealing technology, so that the self-polishing antifouling paint coating 63 can play a temporary protection role, and the polishing workload for removing the self-polishing antifouling paint coating 63 can be reduced. The sealing coat 64 of the sealing coat in this embodiment seals the self-polishing antifouling paint coat 63, and ensures that no biocide is released from the sealed self-polishing antifouling paint.

Referring to FIG. 3, in a preferred embodiment, the low surface energy antifouling combination paint further comprises a tie coat, and the resulting coating of the low surface energy antifouling combination paint has a tie coat 65 located between the sealer coat 64 and the low surface energy antifouling paint coat 66. The jointing of the sealing paint and the low-surface-energy antifouling combined paint can be well realized through the function of the connecting paint. The connection lacquer referred to in this example is an epoxy connection lacquer.

Referring to fig. 2, in the preferred embodiment, a low surface energy anti-fouling combination paint is applied 4 to the straight bottom 8 portion of the outer hull plate at the forward docking stage of the copter. The antifouling combined paint with low surface energy in the embodiment is used for constructing the straight bottom 8 part in the forward docking stage of the hand-in ship, so that one-step forming can be well guaranteed, and the hand-in ship can be handed over after the construction is finished. If the low-surface-energy antifouling combined paint is constructed too early, the damage of the coating caused by collision in the manufacturing process of the hull outer plate cannot be avoided, and the smooth and flat coating 66 of the low-surface-energy antifouling paint cannot be realized. Therefore, the antifouling combined paint with low surface energy is constructed on the straight bottom 8 part of the outer plate of the hull in the forward docking stage of the traffic ship, and a good effect can be realized.

Referring to fig. 3, in a preferred embodiment, in a stage 1 before the forward docking stage 4 of the hand-hauler, a portion of the rectilinear bottom 8 is first coated with an anti-corrosive primer of 80-300 microns, then with a tie coat of 50-120 microns, and then with a self-polishing anti-fouling paint of 50-120 microns, resulting in a primer coating system comprising, in order from the inside out, an anti-corrosive primer coating 61, a bottom tie coat 62 and a self-polishing anti-fouling paint coating 63. The primer coating system referred to in this example also includes the primer coating system that is ultimately obtained after repair of the damaged site. For example, in the subsection stage 1 before the cross-ship forward docking stage 4, an anti-rust primer of 80-300 microns is firstly applied to the straight bottom 8 part, then a connecting paint of 50-120 microns is applied, then a self-polishing anti-fouling paint of 50-120 microns is applied to obtain a protective coating, and the folding seams and damaged parts are repaired in the pre-launching stage 2 and the cross-ship forward docking stage 4 to finally obtain a primer coating system.

In a preferred embodiment, the coating 66 of the low surface energy antifouling paint has a thickness of 80-180 microns. In a further preferred embodiment, the coating 66 of the low surface energy antifouling paint has a thickness of 100-150 microns. In still further preferred embodiments, the coating 66 of the low surface energy antifouling paint has a thickness of 110 microns, 120 microns, 130 microns, or 140 microns.

In a preferred embodiment, the freeboard and flat bottom parts of the outer plate of the ship shell are protected by an adhesive plastic film before the low-surface-energy antifouling combined paint is constructed. In a further limited embodiment, the adhesive plastic film may be a cling film. Changes the prior mode of preventing paint mist from polluting the peripheral area by adopting masking tape and black adhesive paper. In this embodiment, adopt and take sticky plastic film to protect, further reduced the dangerous waste material and produced, avoided damaging because of the coating that the masking tape adhesion is not firm.

The embodiment also provides a construction method of the ship hull outer plate coating, which comprises the following steps:

a segmentation stage 1:

the construction steps of the straight bottom 8 part are as follows:

the construction of the anti-corrosive primer of 80-300 microns can be carried out by two times, and the coating thickness of the anti-corrosive primer of each time of construction is 100-200 microns, preferably 150 microns.

Then 50-120 microns of connecting paint is applied, and then 50-120 microns of self-polishing antifouling paint is applied.

The construction steps of the flat bottom 9 part are as follows:

Then 50-120 micron connecting paint is constructed, and then 100-150 micron self-polishing antifouling paint is constructed.

The pre-launching stage 2 and the forward docking stage 4 repair the damaged coating of the straight bottom 8 part and the straight bottom part. After the repair is finished, constructing 50-200 micron sealing paint on the straight bottom 8 part; then 50-100 micron connecting paint is applied (or not depending on the specific situation), and then 50-200 micron low surface energy antifouling paint is applied.

So that the manner in which the above recited features of the present invention can be understood and appreciated, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.

The coating parameters for the outer hull plates of example 1 are shown in table 1.

TABLE 3

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A construction method of a low-surface-energy antifouling paint for an outer hull plate of a ship is characterized in that the low-surface-energy antifouling paint composition is constructed on the straight bottom part of the outer hull plate of the ship, when the ship is in use, a coating obtained by the low-surface-energy antifouling paint composition is positioned on the outermost layer of the straight bottom part, the low-surface-energy antifouling paint composition comprises the low-surface-energy antifouling paint, and the coating thickness of the low-surface-energy antifouling paint in the coating obtained by the low-surface-energy antifouling paint composition is 50-200 microns.

2. The method of applying a low surface energy antifouling paint to an outer hull plate according to claim 1, wherein the low surface energy antifouling combination paint is applied outside the primer coating system of the straight bottom portion, the primer coating system comprising a self-polishing antifouling paint coating, the self-polishing antifouling paint coating having a thickness of 50 to 120 μm.

3. The method for constructing a low surface energy fouling paint on the outer hull plate of a ship as claimed in claim 2, wherein the primer coating system further comprises an anti-corrosive primer coating and a bottom connection paint coating, the anti-corrosive primer coating, the bottom connection paint coating and the self-polishing fouling paint coating are sequentially arranged from inside to outside, the anti-corrosive primer coating has a thickness of 80-300 microns, and the connection paint coating has a thickness of 50-120 microns.

4. The method for constructing the low-surface-energy antifouling paint for the outer shell plate of the ship shell as claimed in claim 2, wherein the low-surface-energy antifouling paint combination further comprises a sealing paint, the coating of the low-surface-energy antifouling paint is covered outside the coating of the sealing paint, the coating of the sealing paint is connected with the coating of the self-polishing antifouling paint, and the coating thickness of the sealing paint is 50-200 microns.

5. The method for applying a low surface energy fouling paint to the outer hull plate of a ship as claimed in claim 4, wherein the thickness of the coating of the sealer is 50-150 μm.

6. The method for constructing a low surface energy antifouling paint for outer plates of ship hulls according to claim 4, wherein the low surface energy antifouling combination paint further comprises a connection paint, and the low surface energy antifouling combination paint is obtained in a coating layer, and the coating layer of the connection paint is positioned between the coating layer of the sealer and the coating layer of the low surface energy antifouling paint.

7. The method of constructing a low surface energy antifouling paint for outer plating of hulls according to claim 1, wherein the low surface energy antifouling combination paint is constructed on the straight bottom portion of the outer plating of hulls during the forward docking phase of a traffic vessel.

8. The method for constructing a low surface energy antifouling paint on an outer plate of a ship hull according to claim 7, wherein in a subsection stage before the forward docking stage of the hand-in ship, an anti-rust primer of 80-300 microns is constructed on the straight bottom part, then a connecting paint of 50-120 microns is constructed, and then a self-polishing antifouling paint of 50-120 microns is constructed to obtain a primer coating system.

9. The method of applying a low surface energy antifouling paint to an outer hull plate according to claim 1, wherein the coating thickness of the low surface energy antifouling paint is 80 to 180 μm.

10. The method for applying a low surface energy antifouling paint to the outer hull plate according to claim 1, wherein a sticky plastic film is used to protect the freeboard and flat bottom of the outer hull plate before applying the low surface energy antifouling combination paint.