KR100799911B1 - Coating method of using film-type liner on the hull and the rudder - Google Patents

Abstract

A method for coating outer walls and rudders of a ship by using a thin film type liner is provided to reduce the loss during a coating step caused by imitations in characteristics of a coating agent and coating work environment such as weather. A method for coating outer walls and rudders of a ship by using a thin film type liner comprises: a step of surface treating the outer walls and rudders of a ship by removing impurities present thereon; a step of coating the non-adhesive surfaces of a plurality of thin film type liners with a coating agent to form a coating film; a step of attaching the coated thin film type liners to the outer walls and rudders of the ship; and a step of sealing the connection of the thin film type liners.

Description

Coating method of outer wall and rudder using thin film liner {Coating method of using film-type liner on the hull and the rudder}

1 is a flowchart illustrating a conventional vessel outer wall and rudder coating method.

Figure 2 is a flow chart showing an embodiment of the vessel outer wall and rudder coating method using a thin film type liner according to the present invention.

FIG. 3 is a cross-sectional view schematically illustrating a portion of an outer wall of a ship or a rudder coated by the embodiment illustrated in FIG. 2.

FIG. 4 is a cross-sectional view schematically illustrating a portion of an outer wall or a rudder of a ship painted in another form according to the embodiment shown in FIG. 2.

5 is a conceptual diagram illustrating a vessel to which the embodiment shown in FIG. 2 is applied.

<Description of the symbols for the main parts of the drawings>

100: vessel outer wall 110: thin film type liner

120: coating film 130: coating film maintenance purpose tape

200: Rudder

The present invention relates to a ship outer wall and rudder coating method, and more particularly, by attaching a thin film liner coated with paint in advance to the outer wall and rudder on which the surface treatment is performed, it is generated by painting the paint directly on the outer wall of the ship The present invention relates to a ship outer wall and a rudder coating method using a thin film liner that can overcome various constraints.

In recent years, the painting process is closely related to the final quality of ships and the construction schedule, and its importance is increasing.

Among the total hours of work required to build a ship, the painting work accounts for about 15% of the total work hours.

Therefore, one of the challenges that shipyards should focus on to improve their external competitiveness and productivity at this point is to achieve the advancement of the painting process and technology through technology development and investment expansion in the painting field. .

However, although paint productivity improves every year due to continuous investment / development such as improvement of coating facilities and application of new developed paints, considering the characteristics of the process where outdoor work such as block painting and dock painting are the main factors, And problems such as difficulty in working in a high humidity environment and the resulting process disruption are inherently difficult to avoid.

In addition, when examining the types of paint quality defects that occur during ship construction, construction defects related to the working conditions and application environment during construction are more important than the defects caused by paint or design. The development of the situation is required.

1 is a schematic flowchart of an example of a conventional vessel outer wall and rudder coating method, the conventional vessel outer wall and rudder coating method is a surface pre-treatment and shop primer coating step (S10) of the first steel Is performed. Thereafter, the cutting and block assembly steps S20 of the steel are performed. In this case, the block assembly may be assembled in a progressively large form in the order of small, medium, and control. Thereafter, secondary surface pretreatment and blasting / power tool treatment step S30 are performed. Finally, the coating step (S40) in the block step painting and the dock (Dock) step is performed to form a coating film on the vessel outer wall and rudder.

However, since the second surface pretreatment and the blasting / power tool processing step (S30) and the painting step (S40) in the block step and the docking step are mostly performed under atmospheric exposure conditions, they are sprayed onto the ship's outer wall and rudder. The following problems occur when forming the coating film.

Looking at the problems that may occur in the coating step (S40) in the block step and the dock step of the conventional vessel outer wall and rudder coating film forming method, first, due to the nature of the paint it is difficult to dry after painting and painting at less than 5 ℃ Celsius The painting work could not be carried out in the summer. Second, the painting work was difficult in summer due to the short pot-life of the paint. Third, the working environment was difficult in climatic conditions such as rainy weather or high relative humidity. Due to this, the quality of paint could be reduced, so the cost of loss was increased. Fourth, the overcoating interval was short, so it was difficult to repair and secure uniform coating thickness. Fifth, most volatile organic compounds (Volatile) Because they use paints that contain Organic Compounds, they are called HSE, which is called Health, Safe. ty and environment.) Sixth, paints with many application constraints due to dust generation, such as Silicon A / F paints, are separate for each coating. The process losses were increased because a protective wall had to be installed.

Therefore, it is possible to apply various constraints such as dust generation without installing a separate protective film without being influenced by climatic conditions (for example, rainy weather or high humidity of 85% RH or more) in coating the outer wall and the rudder of the ship. There has been a need for ship outer walls and rudder coating methods that can be overcome.

Therefore, in the present invention, in order to overcome the problems of the prior art as described above, when forming the outer film of the vessel and the rudder, the vessel outer wall that can reduce the coating process loss due to constraints due to the characteristics of the paint or constraints in the painting work environment And providing a rudder coating method as a technical problem.

In order to achieve the above technical problem, the vessel outer wall and rudder coating method using a thin film type liner according to the present invention is a surface treatment processing step of removing impurities present in the vessel outer wall and rudder; A coating film forming step of coating a coating on a non-adhesive surface of the plurality of thin film liners; An attachment step of attaching the painted thin film liner to the vessel outer wall and the rudder; And a sealing treatment step of performing a sealing treatment at the connection portion of the attached thin film liner.

At this time, the surface treatment step is preferably performed by combining at least one or more of blasting, grinding, water jet.

In addition, the thin film type liner is preferably a double-sided adhesive tape.

In this case, the thin film type liner may be further attached to the double-sided adhesive tape to maintain the coating properties. For the purpose of maintaining the coating properties of the coating film, it is possible to use a single-sided adhesive tape having surface irregularities and excellent chemical bonding ability with the coating film to improve adhesion with the coating film. At this time, the coating film thickness is good to comply with the existing coating specifications.

And the thin film type liner is preferably made of a material of high strength, high friction resistance, high adhesion performance.

Hereinafter, a preferred embodiment of the vessel outer wall and rudder coating method using a thin film type liner according to the present invention.

In the drawings, Figure 2 is a flow chart showing an embodiment of the vessel outer wall and rudder coating method using a thin film liner according to the present invention, Figure 3 is a portion of the vessel outer wall or rudder painted by the embodiment shown in FIG. 4 is a schematic cross-sectional view showing a working cross-sectional view of a portion of an outer wall of a ship or a rudder coated in another form by the embodiment shown in FIG. 2.

Before describing a preferred embodiment of the vessel outer wall and rudder coating method using a thin film type liner according to the present invention, it will be described a vessel to which the embodiment is applied with reference to FIG. FIG. 5 illustrates a ship outer wall 100 and a rudder 200 that require painting.

The vessel outer wall 100 and the rudder 200 are easily eroded or contaminated by sea water. In particular, since the rudder 200 is located behind the stern side propeller, the degree of erosion increases due to a cavitation phenomenon associated with the propeller 150. Cavitation, also called cavitation, occurs when the surface hydraulic pressure of an object moving in a fluid at high speed causes bubbles to occur, and the bubbles are moved to a relatively high pressure and burst. Refers to the phenomenon. Therefore, in order to prevent the erosion or contamination of the vessel outer wall 100 and the rudder 200 is required painting work using this embodiment.

Referring to Figures 2 to 4 in parallel with the ship outer wall and rudder coating method using a thin film type liner according to the present invention, first, has a surface treatment step (S100) for removing impurities present in the ship outer wall and rudder. This surface treatment step (S100) can be seen as a pretreatment step of the film forming step to improve the adhesion of the outer wall and the rudder, blasting impurities such as oxidation scale or rust, including dust or dirt present on the surface to be coated ( It may be removed by performing at least one combination of conventional surface treatment methods such as blasting, grinding, water jet, and the like.

Next, a coating film forming step (S120) of coating a paint on a non-adhesive surface of the plurality of thin film liners is performed.

In the film forming step (S120), a plurality of thin film liners 110 are used, unlike the conventional vessel outer wall and rudder coating film forming method described with reference to FIG. 1. The thin film type liner 110 is a member of an organic material or an inorganic material having high strength, low friction resistance, and high adhesion performance. The thin film type liner 110 can directly paint a non-adhesive surface of the thin film type liner 110 with excellent waterproofing, anticorrosion, and antifouling effect. Can be. In the present embodiment, only the thin film type liner 110 may be used, or in addition to the thin film type liner 110, an additional coating film maintaining purpose tape 130 may be used.

3 illustrates a form using only the thin film liner 110, and FIG. 4 illustrates a form in which the film characteristic retention purpose tape 130 is additionally attached to the thin film liner 110.

In the present embodiment, the thin film type liner 110 may use a double-sided tape, which is excellent in sealing effect against moisture and solvents, and has excellent characteristics in ultraviolet resistance and thermal shock, thereby having excellent absorption ability against external impact. In addition, low temperature thermal deformation is advantageous. In addition, the double-sided tape is excellent in flexibility and easy to apply to various curved parts of the outer wall of the ship.

In this embodiment, the thin film type liner 110 may be used by additionally attaching the coating property retention purpose tape 130. The coating property retention purpose tape 130 has surface irregularities and is chemically bonded to the coating film. It is better to use single-sided tape with excellent ability.

The non-adhesive surface of the thin film type liner 110 or the coating film maintenance purpose tape 130 is coated with excellent waterproofing, anticorrosion, and antifouling performance.

Next, performing the attachment step (S140) for attaching the coated thin film liner to the vessel outer wall and rudder.

The coated thin film liner 110 or the thin film type liner 110 to which the coating film property maintaining tape 130 is additionally attached is attached to the outer surface of the hull 100 or the rudder 200. As a result, the operation conditions such as temperature, humidity, environment, etc. related to the painting are not subject to demanding constraints and the vessel outer wall and the rudder painting can be easily performed.

Finally, the sealing processing step (S160) is performed to perform a sealing (Sealing) at the connection portion of the thin film type liner attached. The thin film type liner 110 having the coating film 120 or the thin film type liner 110 to which the film characteristic retention tape 130 is additionally attached may have a sealing effect reduced for each connection. Therefore, it is good to seal at each connection. This prevents partial corrosion or wear caused by salt-containing seawater or sea breezes.

The outer wall and rudder coating method using the thin film type liner according to the present invention has been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the following claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and equivalent concepts thereof should be construed as being included in the scope of the present invention.

According to the vessel outer wall and rudder coating method using the thin film type liner of the present invention, the thin film type liner having a coating film formed in advance can be attached to the outer wall and rudder of the ship to complete the painting work, firstly, due to the nature of the paint is difficult winter Alternatively, it is possible to solve the seasonal disruption factor in the summer, to reduce the loss cost due to the climatic conditions due to the nature of the paint, to ensure a uniform film thickness, and to separate the work when the dust is generated There is no need to install a large number of shields, which contributes to the improvement of ship quality and price competitiveness.

In addition, according to the ship's outer wall and rudder coating method using the thin film type liner of the present invention, it is possible to additionally attach the coating film retention purpose tape in addition to the thin film type liner, the coating film can be more firmly attached to the outer wall of the hull to improve the durability of the ship coating There is a technical effect.

Claims (4)

A surface treatment step of removing impurities present in the outer wall and the rudder of the ship; A coating film forming step of coating a coating on a non-adhesive surface of the plurality of thin film liners; An attachment step of attaching the painted thin film liner to the vessel outer wall and the rudder; And And a sealing treatment step of performing a sealing treatment at the connection portion of the attached thin film liner. Vessel outer wall and rudder coating method using thin film liner. The method of claim 1, The surface treatment step, Characterized in that performed by combining at least one or more of blasting, grinding, water jet, Vessel outer wall and rudder coating method using thin film liner. The method of claim 1, The thin film type liner, characterized in that the double-sided adhesive tape, Vessel outer wall and rudder coating method using thin film liner. The method according to any one of claims 1 to 3, The thin film type liner is characterized in that the additional coating film for maintaining the properties, Vessel outer wall and rudder coating method using thin film liner.

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