KR100991900B1 - A watergate and a making method for it - Google Patents

Abstract

PURPOSE: A floodgate and a manufacturing method thereof are provided to improve durability by preventing discoloration and deformation using urethane resin. CONSTITUTION: A manufacturing method of a floodgate is as follows. A release agent is spread on a main mold(10). A transparent thermosetting gel coat resin layer(20) is formed on the release agent. A pattern layer(30) is formed on the hardened thermosetting gel coat resin layer. A first glass fiber layer(40) is loaded on the pattern layer. A core material layer(50) is formed on the first glass fiber. A second glass fiber layer(60) is formed on the core material layer. A cap mold(70) covers the main mold and forcefully discharges indoor air.

Description

A watergate and a making method for it}

The present invention relates to a water problem preparation method, and more particularly, to minimize the risk of corrosion by using a vacuum method, and can easily implement a picture, photograph, text, logo, marble pattern, wood grain pattern, etc. on the surface It is about a method.

In general, a water gate installed for storage and drainage in a water channel, a reservoir, a water and sewage treatment plant, a water treatment plant, an industrial wastewater treatment plant, and the like is largely installed in a dike or a cement structure. The sluice is installed in the concrete fume pipe and the automatic gate is automatically opened and closed according to the quantity and the guide rails are installed on both sides, so that the sluice moves along the guide rail to move up and down to selectively open and close the flow path.

The sluice is manufactured by laminating fiber reinforced plastics (FRP) on a metal skeleton. The fiber-reinforced plastic is a combination of aromatic nylon fibers such as glass fibers, carbon fibers, Kevlar and thermosetting resins such as unsaturated polyester and epoxy resin.

The use of the fiber-reinforced plastics is because it is lighter than metals and ceramic materials and is superior in durability, impact resistance, abrasion resistance, and the like. It is also because oxidation, that is, it is not rust, is not easily deformed by heat, and is easy to process.

However, the above-mentioned problem solving method according to the prior art has the following problems.

Existing water gates were manufactured by welding steel plates and pipes, laminating fiber-reinforced plastics (hereinafter referred to as FRP), and then coating them with unsaturated polyester resin (coating) (coating). Has a problem that is not completely removed, and is finished by applying an unsaturated polyester resin in the state that bubbles remain as described above, the peeling phenomenon occurs due to poor environmental conditions as the period of use has elapsed, and moisture infiltrates This is going on. In other words, in the case of water gates installed in irrigation canals, rivers, reservoirs, dams, drainage pump stations, etc., they are coated with unsaturated polyester resin to prevent corrosion and leakage of water gates due to atmospheric oxygen, moisture, ultraviolet rays, and moisture. Due to the finish, the coating film becomes thinner than the initial color after the installation of the water gate, and the coating bond surrounding the water gate is decomposed under the influence of atmospheric oxygen, moisture, ultraviolet rays, etc. In addition, there is a problem in that the coating film is cracked over time after curing, causing cracking, or the coating film is collapsed due to a lack of mold discoloration due to the presence of moisture. The problems caused by the hydrology due to the film breakdown are first formed in one or two places, and later, rust occurs on the surface by oxygen, moisture, ultraviolet rays, etc., and later, corrosion occurs throughout the entire device. There was a problem of shortening the lifespan and adversely affecting the ecosystem.

Accordingly, the present invention has been invented in view of the above problems, and prevents the corrosion of the hydrologic gate and completely removes the internal bubbles causing the life, thereby preventing the penetration of moisture, and the urethane resin resistant to atmospheric oxygen, moisture, and ultraviolet rays. It is to provide a sluice that can improve the durability by preventing discoloration, deformation, peeling phenomenon by applying.

Another object of the present invention is to expose the surface of the fabric, paper, non-woven fabrics, such as paintings, photographs, letters, logos, marble patterns, wood grain patterns, such as a variety of patterns printed on the surface layer is aesthetically beautiful and the hydrophilic space when installed in rivers In providing hydrological support.

An object of the present invention is the step of applying a release agent to the main mold, forming a thermosetting gel coat resin layer on the release agent layer, laminating a pattern layer on the cured gel coat resin layer facing the bottom, pattern layer Laminating the first glass fiber layer on the first layer, laminating the core material layer on the first glass fiber layer, laminating the second glass fiber layer on the core material, covering the cap mold on the main mold, and impregnating the thermosetting resin into the mold. Demolding after the natural curing, it can be achieved by a hydrological manufacturing method consisting of applying a urethane resin to the surface of the demolded hydrology.

The pattern layer is preferably selected from any one of woven fabric, paper, nonwoven fabric.

The core material layer is preferably selected from any one of iron plate, plywood, magnesium board, calcium silicate board, fiber-reinforced cement board, gypsum board, urethane foam board.

Covering the cap mold on the main mold and forcibly discharging the air in the mold, it is preferable to inject a thermosetting resin after the vacuum state.

The present invention includes a sluice produced by the above method.

The present invention is able to precisely inject the thermosetting resin by the vacuum method, thereby preventing the infiltration of water by preventing the infiltration of water by completely removing the internal bubbles that cause shortening of life due to the application of urethane resin Durability can be greatly improved.

In addition, by creating a variety of patterns, such as paintings, photographs, letters, logos, marble patterns, wood grain patterns, such as fabrics, paper, non-woven fabrics and exposed to the surface layer is aesthetically beautiful and can create a hydrophilic space when installed in rivers.

Although the present invention has been described above, the water gate is not limited thereto, and furthermore, if it is produced in the form of a plate, it can be applied to concrete walls and billboards such as roads, rivers, tunnels, as well as interior and exterior materials of buildings requiring aesthetics. The application range can be increased.

1 is a schematic cross-sectional view showing a laminated structure of the hydrological according to the present invention

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 shows a mold for the manufacture of a water gate according to the present invention, and for convenience, the main mold and the cap mold are separated and the laminates are stacked in the stacked order.

According to the present invention, a release agent for release of the product is applied to the surface of the main mold 10 having a hydrologic shape. The transparent thermosetting gel coat resin layer 20 is formed by diluting a curing agent in a thermosetting gel coat resin for surface protection and gloss of a hydrologic product, and then spraying it.

The pattern layer 30 is formed on the transparent resin layer 20 so that the pattern faces downward. The pattern layer 30 is preferably any one of woven fabric, paper, and non-woven fabric, and various patterns such as pictures, photographs, letters, logos, marble patterns, and wood grain patterns are printed on the bottom surface. The first glass fiber layer 40 and the second glass fiber layer 60 are stacked on the pattern layer 30. On the other hand, between the first and the second glass fiber layer 40, 60 is a core material layer 50 for maintaining the form of the hydrology and maintaining the strength is laminated. The core material layer 50 is preferably used to cut any one of iron plate, plywood, magnesium board, calcium silicate board, fiber reinforced cement board, gypsum board, urethane foam board to meet the desired use and specifications. That is, the core material layer 50 is wrapped by the glass fiber layer.

According to the hydrologic operation method according to the present invention, when the lamination structure shown in FIG. 1 is completed, the cap mold 70 is covered and fixed on the upper part of the main mold 10, and the internal air is discharged using the vacuum pump 80. The mold is then kept in vacuum.

Subsequently, the thermosetting resin is injected into the mold in the vacuum state through the injection hole 72. At this time, the injected thermosetting resin is impregnated with the nonwoven fabric and the glass fiber by the suction action according to the vacuum inside the mold. When the injection of the thermosetting resin is completed, the injection port is sealed and the resin is naturally cured by natural curing. Then, the entire laminate is bonded by the thermosetting resin. At this time, the completion of the injection of the thermosetting resin can be confirmed through the discharge of the resin injected through the outlet of the cap mold (70). Unexplained reference numeral 90 denotes a storage tank of thermosetting resin.

After a certain period of time, the cap mold is removed, the product is demolded, and a transparent urethane resin is applied to obtain a water gate that produces a desired pattern.

10: main mold 20: gel coat resin layer
30: pattern layer 40: first glass fiber layer
50: core material layer 60: second glass fiber layer
70: cap mold 72: injection hole

Claims (4)

Applying a release agent to the main mold,
Forming a transparent thermosetting gel coat resin layer on the release agent layer,
Forming a pattern layer on the cured gel coat resin layer so that the pattern faces downward;
Laminating the first glass fiber layer on the pattern layer,
Laminating the core material layer on the first glass fiber layer,
Laminating a second glass fiber layer on the core material layer,
Covering the cap mold on the main mold and impregnating the thermosetting resin into the mold to demold after natural curing,
A method for producing a hydrology comprising urethane resin applied to the surface of the demolded hydrology. The method of claim 1, wherein the pattern layer is any one of woven fabric, paper, and nonwoven fabric. The method of claim 1, wherein the core material layer is any one of iron plate, plywood, magnesium board, calcium silicate board, fiber reinforced cement board, gypsum board, and urethane foam board.
The method according to any one of claims 1 to 3, wherein a thermosetting resin is injected after the cap mold is covered with the main mold and the air inside the mold is discharged to a vacuum state.

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