KR20030075423A - Method and Apparatus for Building FRP boat without mold - Google Patents

Abstract

PURPOSE:A hull drying method of an FRP(Fiberglass Reinforced Plastic) ship is provided to mass produce and to easily express various kinds of curves by layering an FRP on the external surface of the hull drying method instead of an existing mold method. CONSTITUTION:A hull drying device is located inside a ship and layered an FRP on the surface. The FRP is layered on the external surface of the hull drying device. The hull drying device is separated. An internal FRP is layered inside the external FRP layer. Thereby, the hull drying device is flexibly applied according to the size and the shape of a ship.

Description

Hull Drying Method of FRP Ship and Method of Hull Drying Device {Method and Apparatus for Building FRP boat without mold}

The present invention relates to a hull drying method and a hull drying apparatus of the FRP vessel, and more specifically, by stacking the FRP on the outside of the hull drying apparatus, unlike the conventional method of drying the FRP vessel laminated FRP on the inside of the mold The present invention relates to a hull drying method and a hull drying apparatus for an FRP ship which does not use a mold capable of omitting this mold.

In general, small and medium-sized vessels such as yachts, fishing boats, speedboats and coastal fishing boats are made of glass-fiber-reinforced unsaturated polyester resin (FRP: Fiber-glass Reinforced Plastic). Corrosion resistant to salt, moisture, and chemicals, significantly higher strength and lower thermal conductivity than other materials with the same weight, safety with little change by external physical and chemical action, and easy to lose shape even with temporary impact or pressure Not only has excellent resilience, but also has the advantage of expressing a variety of colors.

These FRP ships are the preliminary step for producing the wooden mold, the wooden mold process for producing the wooden frame for forming the hull and the house, and the vessel color is selected to protect the surface of the ship and give a sense of appearance. First, the coating process is applied to the FRP lamination process by laminating the FPR according to the thickness and strength that meets the standard by using fiberglass, woven cloth and resin on the finished mold surface. In order to structurally support the stacked hulls, the frame is constructed by reinforcing frame with a frame or chassis, and the upper and lower decks of the hull are formed, and the interior of the product is completed by installing residence facilities, engines, electrical facilities, navigation equipment, and convenience facilities. It is made through a series of drying processes.

As described above, the conventional FRP ship drying method is a mold forming method of manufacturing a mold 3 having the same shape as that of a ship and then stacking FRP inside the mold, as shown in FIG. Not only takes a lot of time and economic cost, but also in the case of partial design changes, a new mold has to be manufactured, and in order to support the mold (3) and the hull produced by the mold, a larger scale than the hull is supported. Since the framework (7) must be installed, not only the factory site takes a lot but also all the work is done in the mold (3), which makes the work process difficult. In addition, since the support frame 7 is directly coupled to the mold 3, when the mold 3 is to be replaced or changed in design, both the mold 3 and the support frame 7 need to be disassembled and reassembled. There was a problem that was not suitable for small quantity batch production of various kinds.

In addition, the wooden mold, which has been mainly used in the past, has been mainly used for coastal fishing boats having no curved surface because it is difficult to express the curved surface of the hull freely. However, as shown in FIG. 1 and FIG. 2, since yachts and speedboats, which are increasing in demand at home and abroad, are traveling at high speeds, various types of curved surfaces are used to minimize water and air resistance. .

Accordingly, the present invention has been made to solve such a conventional problem, the main object of the present invention is a drying method of laminating the FRP on the outer surface of the hull drying apparatus instead of the conventional mold forming method of laminating the FRP inside the mold By using, there is no need to manufacture expensive molds and supporting frames, and it can be applied flexibly according to the shape and size of the hull, enabling mass production of various types and easily expressing various curved surfaces to produce high-quality products at low cost. It is to provide the hull drying method of FRP ship.

In addition, the present invention can be easily produced by combining the unit frame and can be manufactured in a variety of sizes by adding or reducing the number of unit frame according to the size and shape of the hull, removable and easy to process frame and molding plate It is to provide a hull drying device that can represent a variety of forms using.

1 and 2 are perspective views showing a typical FRP vessel to which the present invention is applied,

3 is a conceptual diagram showing a FRP ship manufacturing method using a wooden mold according to the prior art,

4 to 9 show the simplified skeleton used to dry the hull of an FRP ship without a mold in accordance with the present invention;

10 to 12 show the frame fixing means installed on the outside of the simple skeleton according to the invention,

13 to 15 show a frame according to the present invention,

16 is a flowchart showing the hull drying process of the FRP ship according to the present invention,

17 to 29 show the drying process of the FRP ship according to the present invention,

30 is a schematic side view showing a hull rotating device that can be applied to the hull drying process according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: FRP hull 30: simple frame

33: center frame 35, 36: side frame

40: outer FRP layer 45: inner FRP layer

50: frame fixing means 53: heat pipe

55: coupler 57: Butt

70: frame 71,72: side vertical portion

73: center vertical portion 74: through hole

80: fixture 90: molded plate

103: urethane balloon 170: hull rotating device

In order to achieve the above object, the present invention is located in the interior of the hull to be dried and the installation step of the hull drying device is laminated FRP on its surface; An outer FRP lamination step of laminating FRP on an outer surface of the hull drying apparatus; A hull drying device separating step of separating the hull drying device; It is achieved by a method of drying the hull of the FRP ship comprising an internal FRP lamination step of laminating the FRP inside the outer FRP layer.

The hull drying device installation step is a simple frame installation step of limiting the approximate size of the hull, and a frame fixing means installation step of limiting the size of the hull by installing a plurality of frame fixing means on the outside of the simple frame; Frame installation step is fixed to the end of the frame fixing means to define the approximate shape of the hull, characterized in that it comprises a forming plate installation step fixed to the frame to define the shape of the hull.

The external FRP lamination step according to the present invention comprises a release agent applying step of applying a release agent to the outside of the molded plate, and an external FRP curing step of curing for a predetermined time while wrapping the outer peripheral surface of the laminated outer FRP with a urethane balloon It is characterized by.

In addition, the hull drying device separation step is a simple skeleton separation step for separating the simple skeleton, a frame fixing means separation step for separating the frame fixing means (butt) welded to the frame and separating the molded plate fixed to the frame Characterized in that comprises a forming plate separating step to.

And the inner FRP lamination step according to the present invention is a styrofoam installation step of installing a styrofoam of a predetermined width on the upper part of the frame attached to the outer FRP layer, and the inside of the FRP layer laminated inside the inner FRP layer including the styrofoam Characterized in that comprises the FRP lamination step and the FRP curing step.

Subsequently, the present invention is characterized by further performing a surface treatment (sanding, painting or polishing) step of smoothly processing the surface of the hull in which the inner and outer FRP layers are laminated.

On the other hand, the present invention is characterized in that it further comprises a hull rotation step for rotating the hull to the left and right to prevent the surface is roughened by the flow of the laminated FRP or painted paint by gravity.

Subsequently, the hull drying apparatus according to the present invention includes a simple skeleton for determining an approximate size of the hull to be dried; Frame fixing means for determining the size of the hull is installed on the outside of the simple frame and dried; A frame fixed to an end of the frame fixing means to determine an approximate shape and curve of the hull to be dried; It is configured to include a molded plate for determining the shape and curved surface of the hull is fixed to the frame and dried.

The simple frame according to the present invention is composed of a plurality of unit skeletons so as to define the approximate size of the hull, the unit skeletons are coupled to be separated from each other, the contact portion of the unit skeletons so that the predetermined angle to facilitate separation It is characterized by inclined.

And the frame fixing means is configured to include a connector coupled to the outside of the simple frame and determines the size of the hull, a coupling member coupled to the end of the connector, and a butt detachably coupled to the end of the coupling sphere It is characterized by.

The lower end of the butt is characterized in that the recess is formed to correspond to the protrusion protruding to the front end of the coupler.

In addition, the butt is characterized in that a predetermined curved surface is formed at its tip to facilitate contact and welding with the frame.

The frame has two side vertical parts on which the fasteners can be installed on both left and right sides of the horizontal part, and a central vertical part is formed at the center thereof to increase the contact area with the butt and prevent the frame from being bent. And a plurality of through holes are formed in the vertical portion to minimize shrinkage and expansion due to heat.

The molded plate is made of a plate material, such as aluminum, and is easy to process and is fixed to the frame through a fastener.

And the fastener is characterized in that the protrusion corresponding to the groove formed in the side vertical portion of the frame, the fixing plate and the forming plate welded to the upper end of the vertical portion is integrally formed integrally.

With reference to the accompanying drawings will be described in more detail the hull drying method and hull drying apparatus of the FRP ship according to the present invention. First, Figs. 4 to 9 show a simple skeleton 30 used for drying the hull of an FRP ship without a mold according to the present invention, and Figs. 10 to 15 are outside the simple skeleton 30 according to the present invention. Installed to show the frame 70 and the frame fixing means 50 to determine the size and shape of the hull, Figures 16 to 30 show the hull drying process of the FRP vessel according to the present invention.

That is, the method of drying the hull of the FRP vessel according to the present invention is a step of installing a simple skeleton 30 in the interior of the ship to be largely dried, frame fixing means for fixing the frame on the outside of the simple skeleton (30) ), A frame installation step of installing the frame 70 for fixing the molded plate, an external FRP lamination step of laminating the FRP on the outside of the molded plate 90, and the laminated FRP is cured Later, the simple skeleton removing step of removing the simple frame 30 and the forming plate 90, and the internal FRP laminating step of laminating the FRP on the inner surface of the removed FRP plate and the predetermined hardening process. Therefore, before explaining the hull drying method of the FRP ship according to the present invention, a hull drying apparatus according to the present invention comprising a simple skeleton 30, a frame fixing means 50, a frame 70 and a forming plate 90 First, the method of drying the hull of the FRP ship using these will be described in detail.

First, Figure 4 is a cross-sectional view showing well the relationship between the simple frame and the hull and frame of the FRP ship according to the present invention, reference numeral 10 is a hull (10: Hull) of the FRP ship to be dried in accordance with the present invention. That is, the conventional mold 3 and the mold support frame 7 are installed outside the hull 10, but the simple frame 30 according to the present invention is installed inside the hull 10. And the conventional mold support frame 7 is a mold is directly fixed, but the simple skeleton 30 according to the present invention is installed to be spaced apart from the FRP hull 10 a certain distance between the frame fixing means that is relatively easy to remove 50 is installed.

That is, the simplified skeleton 30 according to the present invention, while securing the approximate space to dry the FRP hull 10, and substantially determine the shape of the FRP hull 10 frame 70 and the molding plate 80 ) And serves to support the FRP hull 10 in construction. Therefore, as shown in Figure 5, the simple skeleton 30 has a size slightly smaller than the hull to be dried and does not directly determine the shape of the FRP hull 10. Therefore, the simple skeleton 30 can be used to assemble a number of unit skeletons are produced in advance in a straight line form. Therefore, the production of the simple skeleton 30 is much easier than that of the conventional mold support frame (7).

In addition, since the simple frame 30 is not in direct contact with the FRP hull 10 can be recycled. That is, as shown in Figure 5 to 10, since the simple skeleton 30 is assembled into several unit skeletons, depending on the size or shape of the FRP hull 10 by selectively adding or removing the unit skeletons various It is possible to assemble a simple skeleton 30 of a kind. Therefore, the process is simpler and the cost is reduced compared to the conventional mold support frame 7 which must be newly produced every time the mold is changed.

First, Figure 6 is a perspective view showing an example of the center frame 33 is installed in the center of the simple skeleton (30). The center frame 33 is a frame body made of a plurality of rectangular pipes and has a tapered shape in which the width of the lower portion is smaller than the width of the upper portion. Therefore, it can be easily separated from the side frame (35, 36) installed on both sides of the center frame (33). 7 and 8 are side frames 35 and 36 which are installed on both sides of the center frame 33, and the inner side contact portions are inclined to correspond to the center frame 33, and the outside is in the form of a hull. Inclined to correspond. And the center frame 33 and the side frame (35, 36) is simply fixed using a bolt and nut not shown. At this time, the center frame 33 and the side frame (35, 36) is connected to a plurality of dogs along the length of the hull, as shown in Figure 8, the front portion of the hull separate stern frame 37 suitable for its shape (37) ) Will be combined. However, the shape and structure of the simple skeleton 30 and the unit skeleton according to the present invention is not limited to the above-described example. For example, FIG. 9 illustrates a case in which the simple skeleton 30 is formed using two unit skeletons 38 and 39. Therefore, the simple skeleton 30 according to the present invention can be applied in any form as long as it can be easily assembled and separated and recycled repeatedly.

Next, Figures 10 to 15 show the structure of the frame, the frame fixing means and the molding plate installed on the outside of the simple frame 30, first Figure 10 to 12 is installed outside the simple frame 30 It shows the frame fixing means (50). That is, since the simplified frame 30 is made in a straight line regardless of the shape and size of the FRP hull 10 to be dried, the frame fixing means 50 is installed on the outside thereof so as to provide the size and basic shape of the FRP hull 10. Will be decided. As shown in FIG. 11, the frame fixing means 50 is cut in consideration of the length from the simple frame 30 to the FRP hull 10 to be dried from the simple frame 30 by screwing or welding. Consisting of a connection pipe 53, a coupler 55 that is screwed, welded or bonded to an end of the connection pipe 53, and a butt 57 that is coupled to an end of the coupler 55. do.

At this time, the protrusion 56 protruding at the front end of the coupler 55 is detachably coupled to the recess 58 recessed in the lower end of the butt (57). Therefore, the butt 57 is relatively easy to be separated from the coupler (55). And when it is necessary to reinforce the bonding force between the butt (57) and the coupler (55), the adhesive force should be easy to detach using a little adhesive. Therefore, by installing a plurality of the above-described frame fixing means 50 to the outside of the simple framework 10 is determined the size of the hull and the structure that can be installed frame 70 is made.

13, 14 and 15 show the shape of the frame and the installation structure of the frame. First, FIG. 13 is a perspective view showing the shape of the frame. The frame 70 is formed in the FRP hull 10 while fixing the forming plate 90 to be described later to form a longitudinal rib portion of the hull, the material and form that can be relatively easily rested to express the curve of the hull. Has Accordingly, the preferred embodiment of the present invention uses an "E" shaped frame 70 made of aluminum and having three vertical portions formed therein and a plurality of through holes. That is, the left and right sides of the horizontal portion 74 are formed with side vertical portions 71 and 72 in which the fasteners 80 can be installed, and at the center thereof, the contact area with the butt 57 is increased while the frame 70 is formed. The central vertical portion 73 which prevents bending is formed integrally. Therefore, the frame 70 can freely create a desired curved surface in any direction in the vertical or horizontal direction. In addition, a plurality of through holes 75 are formed in the horizontal portion 74 and the vertical portions 71, 72, and 73 to minimize shrinkage and expansion due to heat.

On the other hand, as shown in Fig. 11, the butt 57 coupled to the tip of the fixing means 50 has a predetermined curved surface formed at the tip. Accordingly, as shown in FIGS. 12 and 14, when the position of the butt 57 is selected to match the bending direction of the frame 70, the frame 70 having various curved surfaces may be easily welded. At this time, since the welding is made between the curved surface of the butt 57 and one or two of the vertical portions 71, 72, 73 of the frame 70, it is relatively easy to fall by external impact.

Therefore, as shown in FIG. 15, a plurality of longitudinal frames 70 are installed at a predetermined distance from the simple skeleton 30. As such, when the frame 70 is installed, an approximate shape and curve of the FRP hull 10 are determined. Subsequently, the curved surface of the hull is determined by providing the forming plate 90 having a predetermined curved surface in the space between the vertical and horizontal frames 70. As shown in FIG. 14, the forming plate 90 is a plate material which is easily processed, such as aluminum, and is fixed to the frame 70 through the fastener 80. At this time, as shown in Figure 13, the fastener 80 is a projection (86) corresponding to the groove (76) formed in the vertical portion (71, 72) of the frame 70, and the vertical portion (71, 72) The upper end of the fixed plate 84 and the molding plate 90 is welded to the flange 88 is formed integrally "L" shaped clip. Therefore, when welding the forming plate 90 having a plurality of fasteners 80 to the frame 70 is made a hull drying device having the same shape as the shape of the FRP hull 10.

Hereinafter, the hull drying method of the FRP vessel according to the present invention using the above-described hull drying apparatus will be described in detail. First, Figure 16 is an overall flowchart showing the hull drying process of the FRP ship according to the present invention. As shown in this flowchart, the drying process according to the present invention is largely composed of a hull drying device installation step, an external FRP lamination step, a hull drying device separation step, an internal FRP lamination step. By the way, the step of installing the hull drying apparatus has already been described above in the foregoing description will be described later with respect to other processes.

First, Figures 17 to 19 show the hull drying device preparation step, the same as the above-described hull drying device installation process, except that the hull is turned upside down. However, this is an optional application depending on the size of the hull to be dried or the method of drying. And FIG. 17 shows the base frame 20 on which the hull drying apparatus is seated or fixed, which serves to form a space between the hull drying apparatus and the floor or to keep the hull drying apparatus horizontal.

18 is a simple skeleton 30 made by combining a plurality of unit skeletons to have a size and a shape slightly smaller than the hull to be dried. At this time, since the simple skeleton 30 does not consider the curved surface or the specific shape of the hull can be made by assembling a number of standardized unit skeleton. 19 shows a plurality of frame fixing means 50 on the outer side of the simple skeleton 30 in consideration of the size and curved surface of the hull 10 in detail. At this time, the frame fixing means 50 is installed around a lot of bending or severe change, the length of the hull 10 designed in consideration of the width of the hull 10 and the thickness of the outer FRP laminated, etc. To be produced. Then, as shown in FIG. 20, the frame 70 is welded and fixed to the tip of the fixing means 50. FIG. At this time, it is preferable to install the transverse frame first and then install the longitudinal frame. Thereafter, the mold plate 90 is fixed through the fixture 80 coupled to the frame 70, while being fixed while machining to match the curved surface of the designed hull. At this time, since the thickness of the molded plate 90 is an aluminum plate of 1mm or less, it can be freely bent to conform to the curved surface of the hull. Thus, the outer surface of the hull drying apparatus as shown in Figure 21 is completely surrounded by the forming plate (90).

Subsequently, after applying a release agent made of silicon or fluorine-based material on the surface of the forming plate 90 to prevent the FRP from adhering to the forming plate 90, as shown in FIG. 22, the forming plate 90 has a predetermined thickness. The outer FRP layer 40 is stacked. At this time, the method of laminating the FRP is known, and the fiberglass, weaving cloth, etc. are arranged on the surface of the forming plate 90, the synthetic resin by the hand lay-up (hand lay up), spray (spray up) method Apply enough to glass and weaving cloth. At this time, it is preferable to rub with a rubber roller in order to prevent bubbles from occurring in the fiberglass or weaving cloth and to make the surface uniform.

Subsequently, a plurality of release sheets coated with a release agent on the surface of the FRP are completely attached to the surface of the FRP before the laminated outer FRP layer 40 is cured, and then pushed with a rubber roller to completely adhere. As shown in FIG. 23, the FRP layer 40 is wrapped with a urethane balloon 130 that can completely wrap the hull and press gently until the FRP is completely cured. By wrapping it with the urethane balloon 103 in this way it is possible to prevent the FRP flow or deformation in the curing process to obtain a smooth surface. Reference numeral 133 is a rope for fixing the urethane balloon 130.

Subsequently, when the outer FRP layer 40 is sufficiently cured, the urethane balloon 130 and the release sheet are removed, and the hull 10 being dried is rotated 180 degrees. And the apparatus for rotating the hull in this way is shown in FIG. In this way, by turning the hull, the removal of the simple skeleton 30 and the formation of the inner FRP layer 45 are convenient. That is, as shown in Figure 24, by separating each of the unit skeletons constituting the simple skeleton 30 can be easily removed the entire simple skeleton (30). That is, as shown in the figure, lifting the bolts and nuts that hold the center frame 33 and the side frames (35, 36) and then lifting the center frame 33 to the top, it is welded to the frame (70) As the butt 57 and the connector 55 are separated, the central frame 33 is separated along the inclined surfaces of both side frames 35 and 36. Then pull both sides of the skeleton (35, 36) to the top while pulling up, both sides of the skeleton 35, 36 () is also easily removed. After the simple skeleton 30 is removed as described above, the butt 57 that is welded to the frame 70 is removed.

FIG. 25 shows a method of separating the butt 57 and the fixture 80, wherein the butt 57 is disposed at one or two vertical portions of the vertical portions 71, 72 and 73 of the frame 70. FIG. As it is spot welded, as shown, it can be easily released by hitting downward using a rubber hammer. The fastener 80 is easily pulled out of the vertical portions 71 and 72 of the frame 70 by flipping outwardly the protrusion projecting to the top of the fastener. In this way, after separating the fixture 80, the forming plate 80 is removed from the FRP layer 40.

FIG. 26 shows a state in which the butt 57 and the forming plate 80 are removed from the outer FRP layer 40, and a plurality of longitudinal and horizontal frames 70 are attached to the inside of the outer FRP layer 40. Therefore, as shown in FIG. 27, the internal FRP layer 45 is described above by placing the styrofoam 150 between the vertical portions 71, 72, and 73 of the frame 70 or stacking the styrofoam 150 thereon. Laminate according to the method. Then, as shown in FIGS. 28 and 29, the FRP hull 10 in which a plurality of longitudinal ribs 48 are formed is dried.

On the other hand, if you want to make the surface of the FRP hull 10 made in accordance with the present invention more smooth, it may be further subjected to a separate sanding fixing or painting process and gloss process. If necessary, by using the hull rotating device 170 shown in FIG. 30, the laminated FRP or coated paint may be uniformly rotated from side to side to prevent the flow of gravity. That is, the hull rotating device 170 has a cylindrical shape as a whole, and an outer ring 97 rotatably supporting the inner ring 95 on which rails 93 are fixed on both sides. Therefore, when the inner ring 95 is rotated by the driving means, the roller 98 installed in the inner ring 95 moves along the outer ring 97 so that the inner ring 95 rotates smoothly. Therefore, when the hull 10 transported along the rail 93 is fixed to the inner ring 95 through the fixing means 99, the hull 10 can be easily rotated. Therefore, when the hull 10 is placed in the hull rotating device 170 and rotated evenly from side to side, the FRP or the paint does not flow, thereby uniformly curing, thereby obtaining a smooth surface.

As described above, the hull drying method of the FRP ship according to the present invention does not need to manufacture expensive molds and supporting frames, and can be flexibly applied according to the shape and size of the hull, thereby enabling mass production of various types and various curved surfaces. Since it can be easily expressed, it is possible to produce high quality products such as yachts and speedboats at low cost.

In addition, the present invention has the effect of producing a hull of the FRP vessel having a uniform surface by using a hull rotating device that is wrapped in a urethane balloon to smooth the surface of the laminated FRP smoothly or evenly rotated from side to side.

The hull drying apparatus according to the present invention can be produced by combining the unit frame irrespective of the size and shape of the hull, and the used unit frame can be recycled again can greatly reduce the manufacturing cost of the shelf.

The present invention also has the effect of freely expressing the various curved surfaces of the hull using a frame and a molded plate that is easily removable and easy to process.

Claims (15)

A step of installing a hull drying apparatus which is located inside the hull to be dried and FRP is laminated on a surface thereof; An outer FRP lamination step of laminating FRP on an outer surface of the hull drying apparatus; A hull drying device separating step of separating the hull drying device; Method of drying the hull of the FRP ship, characterized in that comprising the step of laminating the FRP inside the outer FRP layer. The method of claim 1, The hull drying device installation step includes a simple frame installation step for determining the approximate size of the hull, and a frame fixing means for installing the frame fixing means to determine the size of the hull by installing a plurality of frame fixing means on the outside of the simple frame; A frame installation step fixed to an end of the frame fixing means to determine an approximate shape of the hull, and a forming plate installation step fixed to the frame to determine the shape and shape of the hull FRP vessel Method of drying the hull. The method of claim 1, The external FRP laminating step further comprises a release agent applying step of applying a release agent to the outside of the molded plate before laminating the FRP, and an FRP curing step of wrapping and curing the outer circumferential surface of the laminated outer FRP with a urethane balloon. A method of drying the hull of an FRP ship. The method of claim 1, The hull drying device separation step is a simple skeleton separation step of separating the simple skeleton, a frame fixing means separation step of separating the frame fixing means (butt) welded to the frame and molding to separate the molding plate fixed to the frame Method of drying the hull of the FRP ship, characterized in that comprising a plate separation step. The method of claim 1, The inner FRP lamination step is a styrofoam installation step of installing a styrofoam of a predetermined width on the upper part of the frame attached to the outer FRP layer, and the inner FRP lamination step and FRP laminating the FRP inside the outer FRP layer including the styrofoam Method of drying the hull of the FRP ship, characterized in that comprising a hardening step. The method of claim 1, And a surface treatment (sanding, painting or polishing) step of smoothly processing the surface of the hull in which the inner FRP layer is laminated. The method according to claim 3, 5 or 6, And a rotating step of rotating the hull uniformly from side to side to prevent the laminated FRP or painted paint from flowing by gravity. A simple skeleton for determining an approximate size of the hull to be dried; Frame fixing means for determining the size of the hull is installed on the outside of the simple frame and dried; A frame fixed to an end of the frame fixing means to determine an approximate shape of the hull to be dried; An HRP drying apparatus of a FRP ship, characterized in that it comprises a molded plate for determining the shape of the hull to be fixed to the frame to be dried. The method of claim 8, The simplified frame is composed of a plurality of unit skeletons to define the approximate size of the hull, the unit skeletons are coupled to be separated from each other, the contact portion of the unit skeleton is inclined to facilitate separation HRP drying device of FRP ship. The method of claim 8, The frame fixing means is configured to include a connector coupled to the outside of the simple skeleton and determines the size of the hull, a coupling member coupled to the end of the connector, and a butt detachably coupled to the end of the coupling sphere A hull drying device for an FRP ship. The method of claim 10, FRP vessel hull drying apparatus, characterized in that the bottom portion of the butt is formed to correspond to the protrusion protruding to the front end of the coupler. The method according to claim 10 or 11, wherein The butt is a hull drying device of the FRP ship, characterized in that a predetermined curved surface is formed at the tip to facilitate contact and welding with the frame. The method of claim 8, The frame has two side vertical parts on which the fasteners can be installed on both left and right sides of the horizontal part, and a central vertical part is formed at the center thereof to increase the contact area with the butt and prevent the frame from being bent. And a plurality of through holes are formed in the vertical portion and the hull drying device of the FRP vessel, characterized in that to minimize the shrinkage and expansion caused by heat. The method of claim 8, The molded plate is an easy-to-process plate material such as aluminum and the hull drying apparatus of the FRP vessel, characterized in that fixed to the frame through a fixture. The method of claim 14, The fastener is a hull drying device of the FRP vessel, characterized in that the protrusion corresponding to the groove formed in the side vertical portion of the frame, the fixing plate and the forming plate welded to the upper end of the vertical portion is integrally formed.