JP2004090349A - Method for manufacturing fiber-reinforced resin structure and its manufacturing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten a manufacturing cycle by inhibiting the generation of impregnation defects and increasing a resin injection rate. <P>SOLUTION: In the method for manufacturing the fiber-reinforced resin structure by forming a cavity 3 between the first half 2 and the second half 1 of a mold, then injecting a fluid resin into the cavity 3 and impregnating a fibrous layer 9 arranged inside the cavity 3 with the fluid resin, a guide passage 12 for guiding the fluid resin in a one-dimensional direction and a scattering passage 13 for scattering the fluid resin flow of the guide passage 12 in a two-dimensional direction crossing the flow of the guide passage 12, are formed on one side of the fibrous layer 9. In addition, a pass medium 19 for amplifying the fluidity of the fluid resin is arranged over the entire or partial area of one side of the fibrous layer 9 and the fibrous layer 9 is impregnated with the fluid resin injected into the guide passage 12 through the pass medium 19. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for manufacturing a fiber-reinforced resin structure applicable to a large-sized structure such as an aircraft body and a windmill wing, and an apparatus for manufacturing the same.
[0002]
[Prior art]
Applications of fiber reinforced resin (FRP) are expanding in various fields. Carbon fiber rods are usefully used for fishing rods and golf putters. Multilayered fiber reinforced resins are usefully used in hull structures such as boats and yachts.
Because of such lightweight and high-strength characteristics, it is desired to use fiber-reinforced resin for large structures such as aircraft bodies and windmill blades.
[0003]
In order to guarantee the strength of this type of structured object or to stabilize its physical properties, it is important that bubbles and cavities do not enter the fiber reinforced resin during the manufacturing process. In a construction method in which a fluid resin is poured into a fiber layer laid in a molding die and the fiber layer is impregnated with the fluid resin, a cavity may be formed in the resin layer. A vacuum forming method is known as a technique for preventing this cavity from being generated in a layer (for example, see Patent Document 1).
According to Patent Document 1, the inside of the mold cavity closed by the vacuum film and the inner surface of the mold is evacuated on one side, and the fluid resin is injected from the other side. Describes a technique for producing a fiber-reinforced resin structure having no bubbles and no voids.
[0004]
The vacuum forming technique needs to be improved so that the fluid resin is spatially and uniformly distributed and distributed in the fiber layer. As such an improved technique, for example, Japanese Patent Application Laid-Open Nos. H11-163, and H10-27138 are known.
The common point of these known technologies is that the structure having lattice-like holes in the cavity formed between the mold 101 and the vacuum film 102, particularly the nylon net 103, as shown in FIG. 13, as shown in FIG. 13, a flowable resin 105 is injected from many holes opened in the resin injection hose 104, and vacuum evacuation 107 is performed from the end 106 of the cavity, so that the nylon net 103 has a lattice shape. In other words, the resin is impregnated into the fiber mat 108 of the base layer through the mesh. The nylon net 103 is used to provide two-dimensional diffusion uniformity of the fluid resin.
[0005]
In the case of manufacturing a semi-cylindrical or flat ellipsoidal hollow (half) FRP product that is hollow and lightweight but has high structural strength, the flow velocity is unlikely to be uniform, as shown in FIG. In addition, the non-impregnated portion 108 where the fluid resin does not flow evenly and the resin is not impregnated into the fiber layer easily occurs, and impregnation defects easily occur.
[0006]
It is required to suppress the occurrence of impregnation defects by simultaneously improving the fluidity and the diffusivity of the injected resin. It is desired to shorten the manufacturing cycle by increasing the resin injection speed.
[0007]
Therefore, a device for manufacturing a fiber-reinforced resin structure capable of suppressing the occurrence of impregnation defects by facilitating adjustment of the resin injection speed and shortening the manufacturing cycle by increasing the resin injection speed, and The manufacturing method was previously filed (Japanese Patent Application No. 2002-167785).
[0008]
[Patent Document 1]
JP-A-60-83826 [Patent Document 2]
US Pat. No. 4,902,215 [Patent Document 3]
US Pat. No. 5,904,972
[Problems to be solved by the invention]
An object of the present invention is to provide a method for producing a fiber-reinforced resin structure capable of suppressing the occurrence of impregnation defects and shortening the production cycle by increasing the resin injection rate, and an apparatus for producing the same. I do.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention forms a cavity with a first mold and a second mold, injects a fluid resin into the cavity, and flows into a fiber layer disposed in the cavity. In a manufacturing method for producing a fiber-reinforced resin structure by impregnating a conductive resin, a guide path for guiding the fluid resin in a one-dimensional direction on one surface side of the fiber layer; Forming a diffusion path for diffusing the flow in a two-dimensional direction intersecting with the flow of the guide path, and disposing a pass medium for amplifying the fluidity of the fluid resin in the entire area or on one side of the fiber layer; Then, the fluid resin injected into the guide passage is impregnated into the fiber layer through the pass medium to produce a fiber-reinforced resin structure.
Further, according to the present invention, a cavity is formed by a first mold and a film-shaped second mold, and a fluid resin is injected into the cavity by evacuating the cavity, and the cavity is formed in the cavity. In a manufacturing method for manufacturing a fiber reinforced resin structure by impregnating a flowable resin into an arranged fiber layer, a guide passage for guiding the flowable resin in a one-dimensional direction is provided on one surface side of the fiber layer; Forming a diffusion passage for diffusing the flow of the fluid resin in the passage in a two-dimensional direction intersecting with the flow of the guide passage, so that the fluidity of the fluid resin is entirely or partially on one surface side of the fiber layer; The pass media to be amplified is arranged so as to cover all or a part of the fiber layer, and the fluid resin injected into the guide passage is impregnated into the fiber layer through the pass media to produce a fiber-reinforced resin structure. To do .
Further, a cavity is formed by the first mold and the second mold, and a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin to form a fiber-reinforced resin. In a manufacturing method for manufacturing a structure, a tube is inserted into a non-impregnated portion generated inside the structure at the time of injecting the flowable resin, and the non-impregnated portion is removed by evacuation.
Further, a cavity is formed by the first mold and the second mold, and a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin to strengthen the fiber. In a manufacturing apparatus for manufacturing a resin structure, a guide passage for guiding the flowable resin in a one-dimensional direction on one surface side of the fiber layer, and a flow of the flowable resin in the guide passage intersects a flow of the guide passage. And a path medium for amplifying the fluidity of the fluid resin is formed on the entire surface or on one side of the fiber layer.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the embodiment of the apparatus for manufacturing a fiber-reinforced resin structure according to the present invention, a vacuum sheet is used together with an undeformed mold.
As shown in FIG. 1, the vacuum sheet (deformation mold) 1 serving as the second mold forms the cavity 3 with the non-deformation mold 2 serving as the first mold. The cavity 3 is depressurized by a vacuum pump (not shown). The vacuum sheet 1 is formed of a transparent resin film or a transparent resin sheet, is deformable in the direction of the normal line of each surface, and is transparent or translucent. The vacuum sheet 1 is light-transmissive, and a worker can control the injection position and the injection pressure to adjust the uniformity of the diffusion while watching the state of diffusion of the resin.
[0012]
As shown in FIG. 2, a plurality of resin inlets 4 are arranged in the vacuum sheet 1. The vacuum sheet 1 and the resin inlet 4 are in close contact with each other, and there is no air leakage between the vacuum sheet 1 and the resin inlet 4. The inlet end 5 of the flexible resin supply hose is detachable from the resin inlet 4. When the injection end 5 is inserted into the resin injection opening 4, the resin injection opening 4 is connected to the injection end 5, and when the injection end 5 is removed from the resin injection end 4, the resin injection opening 4 and the injection end 5 are detached. A type of coupling is used.
[0013]
1 and 3 to 5 show an embodiment of a method for manufacturing a fiber-reinforced resin structure according to the present invention.
As shown in FIG. 3, the non-deformable molding die 2 serving as the first die is placed on the floor 6 of the factory. A semi-cylindrical concave surface 7 is formed on the upper surface of the undeformed mold 2.
As shown in FIG. 4, a release agent is applied to the concave surface 7 and a release agent layer 8 is formed on the concave surface 7.
[0014]
As shown in FIG. 5, a fiber laminate 9 made of fibers is formed on the release agent layer 8. As shown in FIG. 6, the fiber laminate 9 has a laminated structure in which a plurality of fiber layers 10 and a plurality of foamed resin layers 11 are combined to form a multilayer.
As the fiber of the fiber layer 10, glass fiber, carbon fiber, aramid fiber, and carbon tube are used.
The fiber layer 10 is usually multilayered and reinforced. The fiber layer 10 is formed from matrix fibers in which a group of fibers extends in a lattice and is woven in a matrix. Preferably, a sandwich foam is interposed between the two fiber layers 10.
On one surface of the fiber laminate 9, that is, on the uppermost layer surface, a pass media 19 formed of a flexible material having excellent fluidity of the resin is disposed.
[0015]
As the path medium 19, for example, a net or a sheet having continuous voids is used. The pass media 19 is arranged so as to partially cover the entire area of the fiber laminate 9 or the fiber laminate 9 and amplify the fluidity of the fluid resin, and is removed after the structure is formed.
[0016]
On the uppermost layer surface of the fiber laminate 9 on which the pass media 19 is arranged, a plurality of resin diffusion promoting injection port group forming gutters 12 serving as guide passages 12A are arranged. The plurality of resin diffusion promoting injection port group forming gutters 12 are circumferentially arranged at substantially equal intervals on the same cylindrical surface, and each extend in the axial direction. A gutter tray 13 which forms a diffusion passage 12B together with the resin diffusion promoting inlet group forming gutter 12 between the resin diffusion promoting inlet group forming gutter 12 and the fiber laminate 9 provided with the pass media 19 serves as a joined body 13A. It is interposed and arranged. One gutter receiver 13 is arranged for one resin diffusion promotion injection port group forming gutter 12. The gutter receiver 13 is lightly fixed to the upper surface of the pass media 19 or the upper surface of the fiber laminate 9 with an adhesive. The diffusion passage 12B two-dimensionally diffuses the flow of the flowable resin having a large viscous resistance flowing one-dimensionally along the guide passage 12A from the large number of inlet groups 17 with a component orthogonal to the one-dimensional direction. Are diffused in a two-dimensional direction crossing the flow of the guide passage 12A.
[0017]
As shown in FIG. 7, the gutter receiver 13 has an upper surface formed on the corrugated surface 14 or an uneven surface. Both end surfaces of the half-split (semi-cylindrical) resin diffusion promoting inlet group forming gutter 12 form a tangent plane 15 to the wavefront 14 of the gutter receiver 13. Preferably, the tangent plane 15 is on the plane of the fiber stack 9 and is not parallel to the axial line 16 but is inclined at a small angle. Each of the gaps of the injection roller group 17, which is a group of a plurality of gaps formed between the resin diffusion promoting inlet group forming gutter 12 and the gutter tray 13, that is, the cross-sectional area of the diffusion passage 12B is the same. It is preferred that they are slightly different. It is preferable that the distance Dj between the apex regions of the adjacent wavefronts 14 is not the same but slightly different. Such a difference in the cross-sectional area or the interval makes the amount of the flowable resin introduced into the resin diffusion promoting inlet group forming gutter 12 out of the gap, that is, the diffusion passage 12B, to be uniform. The uneven surface is not limited to the smooth wave surface 14, but may be replaced by a zigzag surface formed in an arbitrary shape such as a triangle or a rectangle on the cross section. The gutter 12 and the gutter tray 13 can be integrated.
[0018]
The next step of the multilayer forming step of forming the fiber laminate 9 is to place the pass media 19 on the fiber laminate 9 and then place the vacuum sheet 1 on the fiber laminate 9 and the resin diffusion promoting inlet group forming gutter 12. This is a manual sheet covering step for covering. The sealing sheet 18 is placed on both upper surfaces of the undeformed mold 2, and the vacuum sheet 1 is placed on the fiber lamination 9, the resin diffusion promoting inlet group forming gutter 12, and the sealing sheet 18.
Then, by sucking air from a suction port (not shown), air between the vacuum sheet 1 and the concave surface 7 is sucked and discharged, and the cavity 3 is formed between the vacuum sheet 1 and the concave surface 7.
[0019]
The next step after the sheet covering step is an injection step of injecting a fluid resin into the cavity 3. As shown in FIGS. 8 and 9, the resin injection port 4 shown in FIG. 2 is provided at one or a plurality of locations in one resin diffusion promoting injection port group forming gutter 12. The flowable resin introduced from the resin inlet 4 as shown by an arrow in FIG. 9 flows in the axial direction A in the resin diffusion promoting inlet group forming gutter 12 (see FIG. 8). The fluid resin receives strong viscous resistance from the resin diffusion promoting inlet group forming gutter 12 and flows through the resin diffusion promoting inlet group forming gutter 12 while flowing in the resin diffusion promoting inlet group forming gutter 12 in both directions B1 orthogonal to the axial direction A and the normal to the concave surface 7. , B2 and injected into the cavity 3 (see FIGS. 8 and 9).
[0020]
As described above, the cavity 3 is in a vacuum state, and the fluid resin receives the atmospheric pressure via the vacuum sheet 1 and smoothly enters the cavity 3. The double flow of the fluid resin extruded from the adjacent inlet groups 17 diffuses and mixes, and further penetrates deep into the fiber laminate 9. The fluid resin injected from the resin diffusion promoting inlet group forming gutter 12 diffuses two-dimensionally, then three-dimensionally, and evenly penetrates into the fiber laminate 9 through the pass media 19, Air is evacuated by evacuation, and the fiber reinforced resin composed of the fiber laminate 9 and the resin that has permeated the fiber laminate 9 does not contain air bubbles. As described above, the penetration rate of the fluid resin that penetrates at a high diffusion rate is high, and the production cycle is shortened.
[0021]
The fiber reinforced resin formed in this manner is cured naturally or in an aggressively heated environment while being pushed to the atmospheric pressure through the vacuum sheet 1, and is transformed into a hard fiber reinforced resin structure. After the fiber-reinforced resin structure is manufactured, the vacuum sheet 1 is removed, the resin diffusion promoting inlet group forming gutter 12 and the gutter receiver 13 are removed, the pass media 19 is removed, and the fiber-reinforced resin structure is not deformed. Take out from the mold 2.
[0022]
In the above embodiment, the pass media 19 was removed after the fiber-reinforced resin structure was manufactured. However, the fiber-reinforced resin structure was formed by molding with glass fiber or carbon fiber mat (felt) of the same quality as the fiber layer. It is not necessary to remove the pass media 19 after manufacturing. In this case, the pass media 19 is completely integrated with the fiber reinforced resin structure, and forms a part of the reinforcing material.
As a result, the number of manufacturing steps can be reduced, and work efficiency can be improved.
It is preferable that the mat has a large porosity and a large thickness in order to secure a passage for the resin. However, if the mat is too thick, the material properties of the fiber-reinforced resin itself may be reduced. Therefore, the material is selected according to the purpose.
[0023]
Also, in the event that an unimpregnated portion 20 as shown in FIG. 10 occurs inside the fiber reinforced resin structure at the time of resin injection, the unimpregnated portion 20 of the fiber reinforced resin structure is applied from the surface of the vacuum sheet 1. Then, a tube 21 having a sharp tip such as a metal needle or a plastic tube is inserted and vacuum suction is performed. At this time, in order to prevent a vacuum leak, an adhesive seal tape 22 is pasted on the surface of the vacuum sheet 1 into which the tube 21 is stabbed.
[0024]
According to the above embodiment, since the pass media 19 is arranged on the surface of the fiber laminate 9 at the time of manufacturing the fiber reinforced resin structure, the fluidity of the fluid resin can be amplified, and the fluid resin is uniformly impregnated. A fiber reinforced resin structure can be manufactured.
[0025]
In addition, as shown in FIG. 11, by forming a large number of holes 13 a in the plate surface of the gutter tray 13, the fluid resin can be passed from the holes 13 a to the lower surface side of the gutter tray 13 to impregnate the fiber laminate 9. .
[0026]
In addition, in the injection step of the present invention, the degree of opening and closing of the plurality of injection ports 4 of one resin diffusion promotion injection port group forming gutter 12 can be controlled to make the flow amount uniform as a whole. It is desirable that the operator makes the judgment while watching the flow situation from outside the transparent sheet 1.
Furthermore, although the FRP structure of the embodiment described above is described as a full semi-cylinder, as a general feature of the resin molding technique, particularly the insert injection molding technique, a complex structure having variously complex inner and outer curved surfaces is known. The molding of the FRP structure is possible. Such an FRP molding method is beneficially used for a curved surface forming structure such as a boat, a yacht, a ship, a vehicle body, an aircraft fuselage, a ship rotor blade, or a windmill where hardness and elasticity (flexibility) are required at the same time. obtain.
[0027]
The present invention is not limited to only the above-described embodiment. For example, the number and material of the resin diffusion promoting inlet group forming gutter 12 and the gutter receiver 13 may be selected as necessary. Further, the gutter tray 13 may have a structure that covers the entire fiber laminate 9. Further, the pass medium 19 may cover the whole or a part of the fiber laminate 9, and its thickness can be arbitrarily set depending on the material. In addition, it goes without saying that the present invention can be appropriately modified and implemented without departing from the scope of the present invention.
[0028]
【The invention's effect】
As described above, according to the method for manufacturing a fiber-reinforced resin structure and the apparatus for manufacturing the same according to the present invention, the following effects can be obtained.
2. The method according to claim 1, wherein a cavity is formed by the first mold and the second mold, a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin. In the manufacturing method for manufacturing a fiber-reinforced resin structure, a guide passage for guiding the flowable resin in a one-dimensional direction is provided on one surface side of the fiber layer, and the flow of the flowable resin in the guide passage is controlled by a flow of the guide passage. And a diffusion path for diffusing in a two-dimensional direction intersecting with the flow path, and a path medium for amplifying the fluidity of the fluid resin is disposed in the whole area or one part on one surface side of the fiber layer, and is provided in the guide path. Since the fiber layer is impregnated with the injected fluid resin through the pass media to produce the fiber reinforced resin structure, the fluid resin can be three-dimensionally uniformly diffused and impregnated into the fiber layer.
3. The cavity according to claim 2, wherein a cavity is formed by the first mold and the film-shaped second mold, and a fluid resin is injected into the cavity by evacuating the cavity, and is disposed in the cavity. A method of manufacturing a fiber-reinforced resin structure by impregnating a flowable resin into a fibrous layer, wherein a guide path for guiding the flowable resin in a one-dimensional direction is provided on one side of the fiber layer; And a diffusion passage for diffusing the flow of the flowable resin in a two-dimensional direction intersecting with the flow of the guide passage, and amplifying the flowability of the flowable resin in the entire area or partially on one surface side of the fiber layer. The pass media to be disposed is arranged so as to cover all or a part of the fiber layer, and the fluid resin injected into the guide passage is impregnated into the fiber layer through the pass media to produce a fiber reinforced resin structure. So Dimensionally uniformly the fluid resin is diffused can be impregnated into the fiber layer.
In claim 3, since a net is used for the pass medium, the fluid resin can be diffused in the fiber layer.
In the fourth aspect, since a sheet having a gap is used for the pass medium, the fluid resin can be diffused in the fiber layer.
In the fifth aspect, since a mat of glass fiber or carbon fiber of the same quality as the fiber layer is used for the pass medium, it is not necessary to remove the pass medium after molding the fiber-reinforced resin structure.
7. The method according to claim 6, wherein a cavity is formed by the first mold and the second mold, a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin. In the manufacturing method for manufacturing a fiber-reinforced resin structure, when the flowable resin is injected, a tube is inserted into an unimpregnated portion generated inside the structure, and the unimpregnated portion is removed by vacuuming. , A fiber-reinforced resin structure free of the resin can be produced.
8. The method according to claim 7, wherein a cavity is formed by the first mold and the second mold, a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin. In a manufacturing apparatus for manufacturing a fiber-reinforced resin structure, a guide passage for guiding the flowable resin in a one-dimensional direction is provided on one surface side of the fiber layer, and the flow of the flowable resin in the guide passage is guided by a flow of the guide passage. And a diffusion path for diffusing in a two-dimensional direction intersecting with the flow path, and a pass medium for amplifying the fluidity of the fluid resin is disposed in the entire area or partially on one surface side of the fiber layer. The fluid resin can be uniformly diffused and impregnated in the fiber layer.
INDUSTRIAL APPLICABILITY The apparatus for producing a fiber-reinforced resin structure according to the present invention has excellent diffusion uniformity and is particularly suitable for forming a large-sized or ultra-large-sized structure such as a next-generation wind turbine.
In claim 8, since the pass media is made of glass fiber or carbon fiber mat of the same quality as the fiber layer, there is no need to remove the pass media after molding the fiber reinforced resin structure, thereby improving the efficiency of the manufacturing operation. can do.
In the ninth aspect, since a plurality of semi-cylindrical tubes are used as the guide passages and the inner surface side of the tubes is arranged toward the fiber layer, the fluidity of the fluid resin can be improved.
In claim 10, since a joined body disposed on the lower side of the guide passage is used as the diffusion passage and a plurality of gaps forming a diffusion passage between the guide passage and the upper surface of the joined body are formed, The fibrous layer can be impregnated into the fibrous layer by diffusing the fluid resin uniformly in three dimensions.
In the eleventh aspect, since a plate having an uneven upper surface is used for the joined body, a diffusion path for the flowable resin can be formed at low cost.
In the twelfth aspect, since a large number of holes serving as passages for the flowable resin are formed in the plate surface of the joined body, the flowable resin can be supplied also to the lower surface of the joined body.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an apparatus for manufacturing a fiber-reinforced resin structure according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a resin injection port of FIG.
FIG. 3 is a cross-sectional view showing steps of a method for manufacturing a fiber-reinforced resin structure according to the present invention.
FIG. 4 is a sectional view showing a step subsequent to FIG. 3;
FIG. 5 is a sectional view showing a step subsequent to FIG. 4;
FIG. 6 is a partially enlarged view of FIG. 5;
FIG. 7 is a sectional view taken along the line XX of FIG. 1;
FIG. 8 is an enlarged plan view of FIG. 1;
FIG. 9 is a conceptual diagram showing the whole of FIG. 8;
FIG. 10 is a perspective view showing a modification of the joined body of FIG.
FIG. 11 is a conceptual diagram illustrating a method of removing an unimpregnated portion.
FIG. 12 is a sectional view showing a conventional molding apparatus.
FIG. 13 is a plan view of FIG.
[Explanation of symbols]
1 Vacuum sheet (deformation mold, second mold)
2 Non-deformable mold (first mold)
3 cavity 9 fiber lamination (fiber layer)
Reference Signs List 10 fibrous layer 12 resin diffusion promotion inlet group formation gutter 12A guide passage 12B diffusion passage 13 gutter tray (corrugated plate)
13A Joint 14 Wavefront 17 Inlet group (gap)
19 pass media 20 unimpregnated part 21 tube 22 seal tape A1 one-dimensional direction B1, B2 two-dimensional direction

Claims (12)

A cavity is formed by the first mold and the second mold, a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin to form a fiber-reinforced resin structure. And a guide passage for guiding the flowable resin in a one-dimensional direction on one surface side of the fiber layer, and a two-dimensional crossing of the flow of the flowable resin in the guide passage with the flow of the guide passage. Forming a diffusion path for diffusing the fluid in the direction, and arranging a pass medium for amplifying the fluidity of the fluid resin in the entire area or one side of the one surface side of the fiber layer, and the fluidity injected into the guide passage. A method for producing a fiber-reinforced resin structure, comprising producing a fiber-reinforced resin structure by impregnating the fiber layer with a resin through the pass medium. A cavity is formed by the first mold and the second mold in the form of a film, and a fluid resin is injected into the cavity by evacuating the inside of the cavity, and a fiber layer arranged in the cavity is formed. In a manufacturing method for manufacturing a fiber-reinforced resin structure by impregnating a flowable resin, a guide path for guiding the flowable resin in a one-dimensional direction is provided on one surface side of the fiber layer; A diffusion path for diffusing the flow of the fluid in a two-dimensional direction intersecting with the flow of the guide path, and a pass medium for amplifying the flowability of the flowable resin, in whole or partially on one surface side of the fiber layer, The fiber layer is disposed so as to cover all or a part of the fiber layer, and the flowable resin injected into the guide passage is impregnated into the fiber layer through the pass medium to produce a fiber reinforced resin structure. Fiber reinforced Method for producing a fat structure. The method for manufacturing a fiber-reinforced resin structure according to claim 1, wherein a net is used as the pass medium. The method for manufacturing a fiber-reinforced resin structure according to claim 1, wherein a sheet having a void is used as the pass medium. The method for producing a fiber-reinforced resin structure according to claim 1 or 2, wherein a mat of glass fiber or carbon fiber of the same quality as the fiber layer is used for the pass media. A cavity is formed by the first mold and the second mold, a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin to form a fiber-reinforced resin structure. In the method for producing a fiber-reinforced resin, the non-impregnated portion is removed by inserting a tube into an unimpregnated portion generated inside the structure at the time of injecting the flowable resin, and evacuating the tube. The method of manufacturing the structure. A cavity is formed by the first mold and the second mold, a fluid resin is injected into the cavity, and a fiber layer disposed in the cavity is impregnated with the fluid resin to form a fiber-reinforced resin structure. A guide passage for guiding the flowable resin in a one-dimensional direction on one surface side of the fiber layer, and a two-dimensional crossing of the flow of the flowable resin in the guide passage with the flow of the guide passage. Forming a diffusion path for diffusing in the direction, and a pass medium for amplifying the fluidity of the fluid resin is disposed on the entire surface or on one side of the fiber layer, manufacturing device. 8. The apparatus for manufacturing a fiber-reinforced resin structure according to claim 7, wherein a glass fiber or carbon fiber mat of the same quality as the fiber layer is used for the pass media. 8. The apparatus for producing a fiber-reinforced resin structure according to claim 7, wherein a plurality of semi-cylindrical tubes are used as the guide passages, and the inner surfaces of the tubes are arranged toward the fiber layers. A joint body disposed below the guide passage is used as the diffusion passage, and a plurality of gaps forming a diffusion passage between the joint body and the guide passage are formed on an upper surface of the joint body. An apparatus for manufacturing a fiber-reinforced resin structure according to any one of claims 7 to 9. The apparatus for manufacturing a fiber-reinforced resin structure according to any one of claims 7 to 10, wherein a plate having an uneven upper surface is used for the joined body. The apparatus for manufacturing a fiber-reinforced resin structure according to claim 10 or 11, wherein a large number of holes serving as passages for the flowable resin are formed in a plate surface of the joined body.

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