JPS61260001A - Antifouling plate - Google Patents

Abstract

PURPOSE:An antifouling plate showing effects free from occurrence of electrolytic corrosion even by direct lining to an outer plate of ships, etc., capable of keeping stain resistance for a long period, obtained by setting cord pieces of specific flexible material on the stain-resistant face of a sheet plate at prescriber intervals, mutually. CONSTITUTION:Cord pieces of a flexible synthetic resin material such as nylon, etc., having such flexibility as to be bent by water flow or be wave, etc., are preferably connected to sponge balls at the tips of the cords and the cords are set at prescribed intervals, mutually, on the stain-resistant face of a sheet plate to give an antifouling plate which prevents organisms in water from attaching themselves to the plate. The antifouling plate is directly lined to an outer plate of ship, an underwater part of marine structure, sea water piping, a buoy, a marker buoy, etc. EFFECT:Since the cord pieces are always rotated by sea water flow, wave, etc., and rub the surface of an antifouling plate, attachment of organisms such as marine organisms can be prevented, no pollution problems occur and there is no reduction in the antifouling plate caused by corrosion even by long-term use.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antifouling plate that is applied to the outer panels of ships, submerged parts of marine structures, seawater piping, water gates, buoys, buoys, and the like.

[Background technology]

Conventionally, in order to prevent marine organisms from adhering to the outer panels of ships, submerged parts of marine structures, and seawater piping,
Organic paints containing antifouling agents such as cuprous oxide and organic tin have been used, but organic paints have the following drawbacks.

(1) There is a limit to the thickness of the coating that can be applied, and the period during which antifouling properties can be expected is short, so periodic recoating was necessary to maintain antifouling properties for a long time.

[2] Antifouling agents such as cuprous oxide and organic tin contained in paints are also toxic to seafood, making it impossible to avoid the problem of pollution.

In addition, other than antifouling paints, copper or copper alloys (e.g.
There is a technology for lining parts of ships, submerged parts of offshore structures, seawater piping, etc. with thin plates of 1/1 cypronickel to prevent the adhesion of marine life, but this technology also has the following drawbacks. Ta.

(1) In environments where marine organisms are likely to adhere to the surface, the antifouling properties of copper or copper alloys may not be sufficient, and biofouling will begin after long-term use.

(2) When copper or steel alloys are applied to the outer panels of ships, it is necessary to electrically insulate them from structural members such as the outer panels to prevent electrolytic corrosion.

(3) When using metal materials as antifouling sheets, corrosion is unavoidable in usage environments such as seawater, and if local corrosion such as pitting due to erosion is taken into account when used in running water, the thickness of the sheet It needed to be thicker.

[Object of the present invention]

The purpose of the present invention is to improve the drawbacks of the above-mentioned prior art. Specifically, it is possible to maintain antifouling properties for a long period of time, to prevent pollution problems, and to improve the appearance of ships' outer panels and marine structures. To provide an antifouling sheet plate that can be applied directly to submerged parts of water without electrical insulation, etc., and which does not suffer from thinning due to corrosion even after long-term use. With the goal.

[Configuration of the present invention]

The present invention is characterized in that cord pieces made of a flexible material that are flexible enough to be bent by water flow or waves are provided on the antifouling surface of the sheet board at a predetermined distance from each other. This is an anti-fouling board for aquatic organisms.

In the present invention, synthetic resin is generally used as the material constituting the antifouling plate. As the synthetic resin, in addition to nylon, epoxy resin, polyester resin, vinyl chloride resin, fluorine resin, etc. can be used. Also,
As a method for lining the structural member with the antifouling plate, in addition to pasting with an adhesive, a mechanical method using bolts, nuts, etc. can also be used.

In addition, the flexible cord piece of the present invention, which is flexible enough to be bent by water flow or waves, has the function of scrubbing and removing dirt adhering to the surface of the synthetic resin antifouling board. The distance between the cord pieces is determined by the length of the cord pieces, and is determined so that the area where the cord pieces bend and rub the surface of the synthetic resin antifouling plate extends to the metal surface of the sheet. It is meant to be. This will be explained based on FIG. 3. In FIG. 3, 2 is a code piece and 4 is the range covered by the code 2. In the present invention, as shown in FIG. 3, a cord piece 2 rotates over the entire surface of a synthetic resin antifouling plate 3 to remove dirt adhering to the sheet plate.

The present invention is to provide a flexible cord piece on a synthetic resin antifouling plate, and a preferred embodiment of the present invention is as follows:
When connecting a sponge hole to the tip of the coated piece, j! By connecting this sponge ball,
The surface pressure on the synthetic resin antifouling plate is large], and the effect of removing dirt on the surface of the sheet plate can be expected to be more effective.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an enlarged view of the portion (2) in FIG. In Figure 1, diameter 5
■The nylon sponge ball 1 is connected to the 1sIφX 1. O
OO Kasumi Such sponge balls 1 are arranged vertically and horizontally on the antifouling plate 5 at intervals of 15 mm.

Attach the side of the cough antifouling board 3 that does not have the sponge balls 1 with adhesive to the submerged part of the raft floating on the sea, and apply it for about 1 hour.
When a yearly immersion test was conducted, no biofouling was observed. The nylon film, which was dipped at the same time for the purpose of award and comparison, had marine organisms such as Fujibo attached to it after about a month of immersion.

[Effects of the present invention]

As described in detail above, since the present invention uses synthetic resin as the antifouling plate, it not only avoids pollution problems, but also eliminates wall thinning due to corrosion, and furthermore, Even if the antifouling plate is directly lined with a structural member such as a submerged part of a marine structure, no electrolytic corrosion will occur. Further, in the present invention, since a removable synthetic resin cord piece is attached to one side of the sheet plate, the cord piece constantly rotates due to seawater flow, waves, etc. Because it rubs the surface of the antifouling board, it can prevent the adhesion of microorganisms that can become a barrier to adhesion of marine organisms, etc.
This results in the effect of maintaining a low level of stain resistance over a long period of time.

[Brief explanation of drawings]

FIG. 1 is a perspective view 6J showing an embodiment of the present invention, and FIG. 2 is an enlarged view of part n in FIG. Figure 3 is a diagram for explaining the operation of the code of the present invention. 1...Sponge ball 2...Code 5...Sheet plate 4...Area covered by the code Sub-agents 1) Meifuku agent Ryo Hagihara - Sub-agent Atsuo Anzai

Claims (1)

[Claims] A method for preventing aquatic life, etc., characterized in that cord pieces made of a flexible material that are flexible enough to be bent by water currents or waves are provided on the antifouling surface of the sheet board at a predetermined distance from each other. Dirty board.