JP4425647B2 - FRP molded product having joint ends, manufacturing method thereof, and FRP molded product obtained by joining metal structures - Google Patents

Description

  The present invention relates to an FRP molded product, and more particularly to an FRP molded product having a joint end to a metal structure and a method for manufacturing the same.

The joining of the conventional FRP molded product and the metal structure is performed, for example, as described in Patent Document 1 below.
FIG. 1 is a cross-sectional view showing an insulator for a high-voltage device according to Embodiment 1 of the present invention, and shows a joining structure in which a metal fitting is attached to an end of a cylindrical dielectric serving as a base. In the figure, reference numeral 1 denotes a cylindrical shape, a dielectric made of epoxy resin filled with aluminum oxide, or a reinforced plastic (FRP) made of glass fiber, organic compound fiber or inorganic compound fiber as a reinforcing material, and 2 is a dielectric. Metal fittings attached to one end of 1 for the purpose of joining with other components, 3 is a semiconductive film, 4 is an adhesive, and dielectric 1 of the bonding portion The adhesive 4 is applied to either one or both surfaces of the side or the metal fitting 2. The two are bonded together to obtain a bonded structure "(for example, see Patent Document 1).
JP 2003-16883 A (page 3, FIG. 1)

  In the joining of the FRP molded product and the metal described in the conventional Patent Document 1, one of the FRP molded products is a cylinder, and the other is a column that fits in the cylinder, and the column is an adhesive. Due to the special shape relationship that is covered with the inner surface of the cylinder through the joint, there is a possibility that satisfactory bonding such as bonding strength can be obtained even with bonding with an adhesive, The bonding between the T-shaped body and the cross-section T-shaped body by applying an adhesive to the bonding surface is not a special shape relationship such as the above-mentioned cylinder and the column inside the cylinder, so that the bonding strength and the like can be satisfied I can not expect.

The present invention has been made to solve the above-described problems. Even if the FRP molded product and the joining end are not in the shape relationship between the cylinder and the column, the joining strength and the like can be satisfied and formed by joining by applying an adhesive. An object of the present invention is to obtain an FRP molded product having a joined end obtained by joining a joined end to a metal structure to an FRP molded product.
Further, satisfactory such bonding strength between the joining end and the FRP molding for joining the metallic structure, molded FRP plate body or that having a joining end of the T-shaped cross-section body cross-section T-shaped member The purpose is to get things.

The FRP molded product having a joining end according to the present invention includes a first FRP molded portion obtained by impregnating a fiber reinforcing material with a resin, and a stiffener provided in the first FRP molded portion and serving as a second FRP molded portion. And an FRP molded product having an embedded body serving as a joint end at the end, wherein the stiffener is a fiber reinforced covering at least the side surface and the upper surface of the core material and the core material. When the material is impregnated with resin and viewed from the joint end side end along the longitudinal direction of the stiffener, the width of the stiffener expands after the same width as the joint end side. At least the end portion of the embedded body is embedded in the end portion on the joint end side of the stiffener, and the embedded body and the stiffener are integrally formed by resin impregnation .

Further, the FRP molded product having the joint end of the present invention does not provide a core material at the joint end side end portion of the stiffener, and at least the end of the embedded body between the fiber reinforcing materials forming the joint end side end portion. The portion is embedded, and the embedded body and the stiffener are integrally formed by resin impregnation .

Further, in the FRP molded product having a joining end according to the present invention, the first FRP molded part is formed by laminating a fiber reinforcing material and a core material and impregnating with a resin. It is an embedded body having a T-shaped cross section having a vertical plate portion protruding from a horizontal flat plate portion, and at least an end portion of the vertical plate portion of the embedded body is embedded in an end portion on the joining end side of the stiffener. At least the end portion of the horizontal plate portion of the embedded body is embedded in the joint end side end portion of the first FRP molded portion, and the first FRP molded portion, the stiffened portion, and the embedded body are integrally molded by resin impregnation. It has been done .

Further, the FRP molded product having the joint end of the present invention is a plate-like body in which the first FRP molded portion is formed by laminating a fiber reinforcing material on both outer sides of the core material and impregnating with resin. A core material is not provided at the joint end side end portion of the first FRP molded portion, and at least the end portion of the horizontal plate portion is embedded between the fiber reinforcing materials forming the joint end side end portion, and the first FRP molded portion Further, the stiffening portion and the embedded body are integrally formed by resin impregnation .

  Further, in the method for producing an FRP molded product having a joining end according to the present invention, a sheet-like reinforcing material and a core material are placed in a molding die in accordance with the shape of the molded product, and embedded in the end of the placed product. At least the end of the body is embedded, and then the vacuum film covers the mount and the embedded part of the embedded body, and then vacuum degassing is performed in the vacuum film, followed by injecting resin into the vacuum film. Impregnating and further curing the resin.

  In the FRP molded product obtained by joining the metal structure of the present invention, the embedded body is a steel material, and the metal structure is welded to the joint end exposed to the outside of the steel material.

  Further, in the FRP molded product in which the metal structure of the present invention is joined, the FRP molded product having a joint end is made of wood, and the metal structure is bolted to the joint end in which the wood is buried. is there.

The FRP molded product having a joining end according to the present invention includes a first FRP molded portion obtained by impregnating a fiber reinforcing material with a resin, and a stiffener provided in the first FRP molded portion and serving as a second FRP molded portion. And an FRP molded product having an embedded body serving as a joint end at the end, wherein the stiffener is a fiber reinforced covering at least the side surface and the upper surface of the core material and the core material. When the material is impregnated with resin and viewed from the joint end side end along the longitudinal direction of the stiffener, the width of the stiffener expands after the same width as the joint end side. and, the joint end side end portion of the stiffener, at least an end portion of the buried body is embedded, and the embedded member and the stiffener Runode are integrally formed by resin impregnation, to form a joint end buried The embedded part of the body is molded integrally with the fiber reinforcement on both sides by impregnating resin, so that the bonding strength etc. can be satisfied It can be obtained FRP molded product having a joint end of the metal structure.

Further, the FRP molded product having the joint end of the present invention does not provide a core material at the joint end side end portion of the stiffener, and at least the end of the embedded body between the fiber reinforcing materials forming the joint end side end portion. part is embedded, and the embedded member and the stiffener Runode is integrally formed by a resin-impregnated, the ends of the buried body is molded integrally with opposite sides of the fiber-reinforced material by impregnating resin, bonding strength, etc. is satisfactory An FRP molded product having a joining end of a plate-like body to a metal structure can be obtained.

In the FRP molded product having a joint end of the present invention, the first molded FRP part, and the core fiber reinforcement is laminated, is molded by resin impregnation, Umakomitai a horizontal plate portion And a vertical plate portion protruding from the horizontal plate portion, and an embedded body having a T-shaped cross section, and at least an end portion of the vertical plate portion of the embedded body is embedded in an end portion on the joint end side of the stiffener. At least the end portion of the horizontal plate portion of the embedded body is embedded in the joint end side end portion of the first FRP molded portion, and the first FRP molded portion and the stiffened portion and the embedded body are integrated by resin impregnation. molded Runode, respective ends of the buried body T font is molded integrally with opposite sides of the fiber-reinforced material by impregnating resin, FRP having a joining end of the T font to the metal structure bonding strength or the like is satisfactory A molded product can be obtained.

In the FRP molded product having a joint end of the present invention, the first molded FRP part, and in the core, the fiber reinforcement is laminated on both outer, be a plate-like body formed by resin impregnation The first FRP molding part is not provided with a core material at the joining end side end part, and at least the end part of the horizontal plate part is embedded between the fiber reinforcing materials forming the joining end side end part, and the first FRP molding process is performed. Since the portion, the stiffening portion, and the embedded body are integrally formed by resin impregnation , the bonding strength of the horizontal plate portion of the T- shaped embedded body is more satisfactory, and the bonding is facilitated.

  Further, in the method for producing an FRP molded article having a joining end according to the present invention, a sheet-like reinforcing material and a core material are placed on a molding die in accordance with the shape of the molded article, and embedded in the end of the placed article. At least the end of the body is embedded, and then the mounting part and the embedded part of the embedded body are covered with a vacuum film, and then vacuum degassing is performed in the vacuum film, followed by injecting resin into the vacuum film. FRP moldings having a connection end to the metal structure can be produced by vacuum impregnation molding, which is performed by impregnating and further curing the resin.

Further, in the FRP molded product obtained by joining the metal structure of the present invention, the embedded body is a steel material, and the metal structure is welded to the joint end exposed to the outside of the steel material. Since the structures are joined, the FRP molded product and various metal structures can be joined with sufficient strength.

  Further, in the FRP molded product obtained by joining the metal structure of the present invention, the embedded body of the FRP molded product having the joint end is wood, and the metal structure is bolted to the joint end formed by embedding the wood. The metal structure can be detachably joined to the FRP molded product by bolt fastening.

Embodiment 1 FIG.
1 is a perspective view showing an FRP molded product having a joining end according to Embodiment 1, and FIG. 2 is a plan view (a) showing joining of the joining end of the FRP molded product and the metal structure of FIG. FIG. 3 is a front view, FIG. 3 is a view for explaining the formation of the joining end of the FRP molded product of FIG. 1, and FIG. 4 is a perspective view showing the FRP molded product without the joining end. These are perspective views which show another FRP molded product without a joining end.

The FRP molded product 1 having the joining end in FIG. 1 is a stiffening portion at a predetermined interval in order to prevent the first FRP molded portion 2 from being bent and deformed on the plate-like first FRP molded portion 2. A part of the FRP molded product with the stiffening part provided with the 2FRP molding part as the protruding part is taken out (indicating that part of the FRP molded part has been cut off by a two-dot chain line), and this second FRP molding part 3 (stiffening) Part) is provided with a plate-like joint end 7a, which is the joint end 7.
As shown in FIGS. 4 and 5, the FRP molded product with a stiffening portion (a part of which is taken out) prevents the first FRP molded portion 2 from being bent and deformed on the plate-like first FRP molded portion 2. A second FRP molded part that is a stiffened part having a rectangular or trapezoidal cross section is provided as a protruding part at a predetermined interval. Here, the first FRP molded part 2 is an FRP molded body in which a reinforcing material is impregnated with a resin, and the second FRP molded part 3 includes an outer FRP part 3a and a core part 3b therein, and the FRP part 3a is The FRP molded body in which a reinforcing material is impregnated with a resin, and the core material portion 3b is a core material such as polyurethane impregnated with a resin.

The FRP molded product 1 having the joining end shown in FIG. 1 has the second FRP molded portion 3 (stiffened portion) of the FRP molded product with the stiffened portion shown in FIG. 4 and FIG. The width is narrowed from a predetermined initial cross section A, the height is increased, and the cross section is gradually changed to a narrow rectangle with a high height. That is, toward the end, the cross section is changed from the initial cross section A to the intermediate cross section B where the cross section changes, and the cross section is narrow and the rectangular cross section C is a high height rectangle.
The rectangular cross section C forms the joint end 7 at the end. The joining end 7 includes an outer FRP portion 3a and a plate-like embedded body 8 embedded therein. That is, the core material portion 3b surrounded by the FRP portion 3a decreases in the width direction from the initial cross-section portion A to the intermediate cross-section portion B, and increases in the height direction. Replace with 8.

Next, a manufacturing method for manufacturing the FRP molded product 1 having a joining end by vacuum impregnation molding will be described.
The vacuum impregnation molding apparatus includes a resin injection means, a deaeration means, a molding die on which a reinforcing material and a core material are placed and resin is injected by the resin injection means, and a reinforcing material and a core material placed on the molding die. A known film comprising a vacuum film covering the mounted article and a sealing means for sealing the molded part from the outside with a vacuum film at the periphery of the mold.
First, a sheet-like carbon fiber reinforcing material, which is a reinforcing material for forming the first FRP molding portion 2, is cut and placed in a mold according to the size and shape. A polyurethane core material having a predetermined shape, which is a core material forming the core material portion 3b of the second FRP molding portion 3, is placed thereon. That is, the polyurethane core material according to the shape of the initial cross section A and the intermediate cross section B of the stiffening section is placed. On the rectangular cross section C, a plate-shaped steel plate 8a, a wood plate 8b, an aluminum plate 8c, or the like, which is the embedded body 8, is placed upright. Then, these polyurethane core material and the embedded body 8 are surrounded by a sheet-like carbon fiber reinforcing material. At this time, the lower part (both ends which become the leg part bonding part) is made long, and the bonding is made good by overlapping the sheet-like carbon fiber reinforcing material forming the first FRP molding part 2.
Next, these placed objects are covered with a vacuum film and molded by vacuum degassing, resin injection impregnation, and press-cure curing under normal conditions to obtain an integral molded product. As described above, the embedded body 8 is firmly integrated with the reinforcing material and the injection resin into the FRP molded product with the stiffening portion, and becomes a joint end 7 that can be easily joined by forming a plate shape. .

In this molding method, as shown in FIG. 3, the dimensions of the core part 3b and the embedded body 8 of the second FRP molded part 3 are the height H1 and the width W1 of the initial section A, and the rectangular section C The cross-sectional dimensions are a height H2 (H2> H1) and a width W2 (W2 <W1), and the height and width of the intermediate cross section B are continuously connected from the initial cross section A to the rectangular cross section C. + W1 = 2H2 + W2. And let the leg part adhesion part be the same dimension. If it does in this way, a sheet-like carbon fiber reinforcement can be cut and used for a rectangle, it is easy to cut, and there is no generation of useless uncut.
However, the intermediate cross-section B and the rectangular cross-section C are made smaller in the width direction in the initial cross-section A, but may be the same height. In this case, a sheet-like carbon fiber reinforcing material is used. To make it rectangular, adjust the leg joint.

  Further, the molding method for obtaining an integral molded product is not limited to the manufacturing method by the above-described vacuum impregnation molding, but is cured by laminating a sheet-like carbon fiber reinforcing material on a core material such as polyurethane while supplying the resin, You may shape | mold by what is called a hand-molding method of obtaining the same molded object.

Next, a joining method for joining a metal structure to an FRP molded product with a stiffening portion formed as described above will be described with reference to FIG.
In FIG. 2, the metal structure 11 is a cross-sectional T-shaped body having a plate-like body and a vertical plate-like body projecting vertically from the plate-like body, and the joining side of the plate-like body is an FRP with a stiffening portion. It has the branch part 11a which branches so that the plate-shaped 1st FRP shaping | molding part 2 of the junction side of the edge part of a molding may be pinched | interposed from upper and lower sides.
The vertical plate-like body of the metal structure 11 is aligned with the joint end 7 of the FRP molded product with a stiffening portion, and the stiffening portion of the metal structure 11 is sandwiched between the ends of the first FRP molded portion 2 at the branching portion. As shown in FIG. 2, the joint end 7 and the vertical plate-like body, and the first FRP molding part 2 and the branch part are respectively bolted to each other, as shown in FIG. The object and the metal structure 11 are joined.
The embedded body 8 of the joint end 7 of the FRP molded product with a stiffening portion is a metal plate such as a steel plate 8a and an aluminum plate 8b, a wood plate 8c, and the like. The metal structure 11 can be detachably joined to the FRP molded product 1 via the joint end 7 by bolt fastening.
Note that the bolt fastening may be performed only at the joint end 7. Although the bonding strength is slightly reduced, bonding becomes easy.

Further, the metal structure 11 may be directly joined to the joint end 7, or a joint piece suitable for the material and shape of the metal structure 11 is once joined to the joint end 7, and the metal structure is attached to this joint piece. The object 11 may be joined by welding or the like.
Various shapes can be considered for the joint part of the metal structure 11 or the joint piece to be joined to the FRP molded product with the stiffening part, and the joint part has the first FRP molded part in addition to the joint end 7, but at least joined to the joint end 7 By doing so, the joining to the FRP molded product with the stiffening portion is easily and firmly performed.
Further, not only the FRP molded product with the stiffening portion but also the plate-shaped FRP molded product 1 having the protruding portion, the joint end 7 can be formed as described above and can be similarly joined to the metal structure 11. .
In addition, by narrowing the width of the cross section of the rectangular cross section C, it becomes easier to embed the embedded body 8 as a plate-like body, and a plate-like joining end 7 can be formed so that the bolt fastening to the metal structure 11 or the like is possible. It becomes easy.

Embodiment 2. FIG.
FIG. 6 is a perspective view showing an FRP molded product having a joining end according to the second embodiment. The FRP molded product having the main joining end is different from the first embodiment only in the structure and formation of the joining end 7, and the other points are the same as those in the first embodiment.
As in FIG. 1, the rectangular cross section C is composed of an outer FRP portion 3a and a plate-like embedded body 8, but the embedded body 8 is not entirely embedded in the FRP portion 3a, but the tip portion is Go out. And the part which went out to this exterior is made into the joining end 7. FIG. Similarly, the embedded body 8 is firmly bonded to the FRP molded product at the embedded portion. The other structure is the same as that of the FRP molded product having the joining end of the first embodiment, and the manufacturing method is the same except that the joining end 7 is not covered with the reinforcing material and the resin is not injected.

By forming the joint end 7 as described above, the metal structure 11 made of the same material as the joint end 7 can be arbitrarily joined by welding by using the embedded body 8 as the steel plate 8a or the aluminum plate 8c.
Further, in addition to directly joining the metal structure 11 to the joining end 7, the joining piece may be joined after joining, not only the FRP molded product with a stiffening part, but also FRP molding of a plate-like body having a protruding part. If it is the thing 1, the point etc. which can form the joining end 7 similarly and can join to the metal structure 11 are the same as that of Embodiment 1. FIG.
In addition, by narrowing the width of the cross section of the rectangular cross section C, it becomes easy to embed the embedded body 8 as a plate-like body, and a plate-like joining end 7 can be formed so that welding joining to the metal structure 11 or the like is possible. It becomes easy.

Embodiment 3 FIG.
FIG. 7 is a plan view (a) and a front view (b) showing an FRP molded product having a joint end according to the third embodiment. The FRP molded product having the main joining end is different from the first embodiment only in the structure and formation of the joining end 7, and the other points are the same as those in the first embodiment.
The embedded body 8 of the present embodiment is a T-shaped cross section having a horizontal plate portion and a vertical plate portion protruding vertically from the horizontal plate portion, and the end portion of the horizontal plate portion is first FRP molded. The end portion of the vertical plate portion is embedded in the FRP portion 3a in the rectangular cross section C by sandwiching and joining the portion 2 and the leg bonding portion of the FRP portion 3a of the rectangular cross section C. And the cross-section T-shaped body which came out from the rectangular cross-section part C forms the joining end 7. FIG. Also in this case, the embedded body 8 is firmly joined to the FRP molded product at the embedded portion at the end. The other structure is the same as that of the FRP molded product having the joining end of the first embodiment, and the manufacturing method is also the FRP of the horizontal plate portion of the embedded body 8 with the first FRP molded portion 2 and the rectangular cross section C. It is the same except that it is sandwiched and joined by the leg adhesion portion of the portion 3a, and the joining end 7 is not covered with the reinforcing material and resin is not injected.

The main joining end 7 uses the embedded body 8 as a metal plate such as a steel plate 8a and an aluminum plate 8c, and is joined to the same kind of metal structure 11 or a joining piece of the metal structure 11 by welding.
Since the horizontal plate portion and the vertical plate portion are joined to the FRP molded product, the main joining end 7 is firmly joined by the FRP molded product. Moreover, since it is not only a plate-like body but also a T-shaped cross section, there are various types of joining with the metal structure 11.

Embodiment 4 FIG.
FIG. 8 is a cross-sectional view showing an FRP molded product having a joint end according to the fourth embodiment. The FRP molded product was a plate-like body, and a joining end 7 was formed at the end thereof.
This FRP molded product is a plate-shaped molded product having a sandwich structure in which the core part 2b is sandwiched between the FRP parts 2a and 2a on both outer sides, and the end part is embedded by removing the core part 2b as appropriate. A portion with a reduced thickness for embedding the embedded body 8 is formed. The embedded body 8 uses a metal plate such as a steel plate 8a and an aluminum plate 8c, and embeds the end portion between the FRP portions 2a and 2a forming a portion with a reduced thickness.
In the manufacturing method of the FRP molded product having the main joining end 7, the core material such as polyurethane forming the core material portion 2b is surrounded by a sheet-like carbon fiber reinforcing material, and the embedding portion includes the embedded body 8 in the sheet shape. Surrounded by carbon fiber reinforcement, impregnated with injected resin, and cured to form an integrally molded body.
In joining the metal structure 11 or the joining piece of the metal structure 11, the joining end 7 and the metal structure 11 are welded and joined.

A plate-shaped molded article having a sandwich structure in which the core part 2b is located inside and both outer sides are sandwiched between FRP parts 2a and 2a is used as the first FRP molded part 2 of the FRP molded article with the stiffener shown in FIGS. Can be used. That is, the first FRP molding part 2 in FIGS. 4 and 5 is a single-plate molded body in which a sheet-like carbon fiber reinforcing material is impregnated with an injection resin, and this is used as a sandwich-shaped molded body. First and second first FRP molding parts 2 are provided.
When the joint end 7 has the T-shaped cross section shown in FIG. 7 of the third embodiment, the second FRP molded part 3 is similarly formed on the sandwiched first FRP molded part 2, and the rectangular cross section C The end portion of the vertical plate portion of the embedded body having a T-shaped cross section is embedded, and the horizontal plate portion is embedded between the FRP portions 2a and 2a as shown in FIG.

As the reinforcing material, in addition to carbon fibers, woven fabrics such as glass fibers and aramid fibers, mats, and the like are used.
In addition to polyurethane, polystyrene, polyethylene, polypropylene, silicon, polyvinyl chloride and the like are used as the core material.
The injection resin is a matrix resin for the molded product, and a thermosetting resin such as an epoxy resin, a vinyl ester resin, or an unsaturated polyester resin is used.
In addition, as the 1st FRP shaping | molding part 2 of FIG.1, FIG.2, FIG.6 FIG. 7, you may use the FRP molded product which impregnated the reinforcement | strengthening material beforehand with another process instead of the reinforcement | strengthening material.

  The FRP molded product having a joining end according to the present invention can be joined to a metal structure via the joining end, and is used to join the FRP molded product to the metal structure.

It is a perspective view which shows the FRP molded product which has the junction end of Embodiment 1 of this invention. It is the top view and front view which show the joining of the joining edge of the FRP molding of FIG. 1, and a part of metal structure. It is a figure explaining formation of the joining end of the FRP molded product of FIG. 1 of this invention. It is a perspective view which shows the FRP molded product without a joining end. It is a perspective view which shows another FRP molded product without a joining end. It is a perspective view which shows the FRP molded product which has the junction end of Embodiment 2 of this invention. It is the top view and front view which show the FRP molded product which has the joint end of Embodiment 3 of this invention. It is sectional drawing which shows the FRP molded product which has the junction end of Embodiment 4 of this invention.

Explanation of symbols

7 Junction ends, 8 implants.

Claims (7)

A first FRP molded part in which a fiber reinforcing material is impregnated with a resin;
A stiffener provided in the first FRP molding part and serving as a second FRP molding part;
FRP molded product with
An FRP molded product having an embedded body as a joint end at the end,
The stiffener is
The core material and a fiber reinforcement covering at least the side surface and the upper surface of the core material are formed by resin impregnation,
When viewed along the longitudinal direction of the stiffener from the joint end side end, after the portion having the same width as the joint end side, the shape is widened,
At least the end of the embedded body is embedded in the joint end side end of the stiffener,
An FRP molded article having a joint end, wherein the embedded body and the stiffener are integrally formed by resin impregnation . No core material is provided at the joint end side end of the stiffener,
At least the end portion of the embedded body is embedded between the fiber reinforcing materials forming the joining end side end portion,
The FRP molded article having a joint end according to claim 1, wherein the embedded body and the stiffener are integrally formed by resin impregnation . The first FRP molding part is formed by laminating a fiber reinforcing material and a core material and impregnating with resin.
The embedded body is an embedded body having a T-shaped cross section having a horizontal plate portion and a vertical plate portion protruding from the horizontal plate portion,
At least an end portion of the vertical plate portion of the embedded body is embedded in the joint end side end portion of the stiffener,
At least an end of the horizontal plate portion of the embedded body is embedded in the joint end side end of the first FRP molded portion,
The FRP molded product having a joining end according to claim 1 or 2 , wherein the first FRP molded part, the stiffened part, and the embedded body are integrally molded by resin impregnation . The first FRP molded part is a plate-like body formed by cored material inside, laminated fiber reinforcements on both outer sides thereof, and impregnated with resin.
A core material is not provided at the joint end side end portion of the first FRP molded portion,
At least the end of the horizontal plate portion is embedded between the fiber reinforcing materials forming the joining end side end,
The FRP molded article having a joining end according to claim 3 , wherein the first FRP molded part, the stiffened part, and the embedded body are integrally molded by resin impregnation . A sheet-like reinforcing material and a core material are placed in a molding die in accordance with the shape of the molding, and at least the end of the embedded body is embedded in the end of the mounting, and then the above-mentioned figurine with a vacuum film And covering the embedded portion of the embedded body, and then performing vacuum deaeration in the vacuum film, and subsequently injecting and impregnating a resin into the vacuum film, and further curing the resin The manufacturing method of the FRP molding which has a joining end of any one of Claims 1-4 characterized by including. The embedded body of the FRP molded product having a joint end according to any one of claims 1 to 4 is a steel material, and a metal structure is welded to the joint end exposed to the outside of the steel material. FRP molded product obtained by joining metal structures characterized by 5. The metal according to claim 1 , wherein the embedded body of the FRP molded product having a joint end is wood, and a metal structure is bolted to the joint end in which the wood is embedded. FRP molded product with the structure joined.

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