WO2018008689A1

WO2018008689A1 - Composite material substrate, pultruded material, method for producing composite material substrate, and method for producing pultruded material

Info

Publication number: WO2018008689A1
Application number: PCT/JP2017/024672
Authority: WO
Inventors: 駿一森島; 敏生小佐々; 正剛波多野; 和昭岸本; 幸生武内; 政之山下; 仁史小鹿
Original assignee: 三菱重工業株式会社
Priority date: 2016-07-06
Filing date: 2017-07-05
Publication date: 2018-01-11

Abstract

Provided are: a composite material substrate that makes it possible to adjust the performance of a composite material substrate molded by pultrusion in accordance with the performance required thereof; a pultruded material; a method for producing the composite material substrate; and a method for producing the pultruded material. The composite material substrate (60') comprises layers that extend in the lengthwise direction and that include reinforcing fibers (62f')-(68f') impregnated with a thermosetting resin, namely, a first layer (62') in which the fiber direction of the reinforcing fibers (62f') is oriented along the lengthwise direction and second layers (64')-(68') that are stacked on the first layer (62') and in which the fiber directions of the reinforcing fibers (64f')-(68f') are oriented in the direction of predetermined angles (64θ')-(68θ') with respect to the lengthwise direction and an in-plane direction of a facing surface facing the first layer (62'). The angles (64θ')-(68θ') in a pultruded material obtained by pultruding the composite material substrate (60') are equal to or larger than the angles (64θ)-(68θ) of the fiber directions of the reinforcing fibers with respect to the lengthwise direction.

Description

Composite material base material, pultruded material, composite material base material manufacturing method, and pultruded material manufacturing method

The present invention relates to a composite material base material, a pultruded material, a composite material base material manufacturing method, and a pultruded material manufacturing method.

As a material having light weight and high strength, a composite material in which a reinforcing fiber is impregnated with a thermosetting resin is known. Composite materials are used in aircraft, automobiles, ships and the like. As a method of forming a composite material, a method of drawing a base material of a sheet-like composite material is known (see Patent Document 1).

JP 2011-056816 A

FIG. 14 is a schematic configuration diagram of a conventional pultrusion material manufacturing apparatus 200. FIG. 15 is a schematic cross-sectional view of a pultruded material 210 manufactured by a conventional pultruded material manufacturing apparatus. As shown in FIG. 14, a pultrusion material manufacturing apparatus 200 that manufactures a pultrusion material by a conventional method such as the method of Patent Document 1 includes a fiber supply unit 202 that supplies reinforced fibers, and a thermosetting property to the reinforced fibers. A resin pool 204 impregnated with a resin and a molding die 206 for drawing out a reinforcing fiber impregnated with a thermosetting resin are provided. The pultrusion material manufacturing apparatus 200 manufactures the pultrusion material 210. The pultrusion material 210 includes reinforcing fibers 212 and a thermosetting resin 214. Since the pultruded material 210 is manufactured by the pultruded material manufacturing apparatus 200, the reinforcing fibers 212 are oriented in the pultruded material drawing direction, that is, the longitudinal direction, as shown in FIG.

That is, in the conventional method including the method of Patent Document 1, a pultruded material including a 0 degree fiber and a mat material is manufactured. Here, the 0 degree fiber is a reinforcing fiber in which the fiber direction and the drawing direction of the reinforcing fiber are the same. The mat material is a material in which the fiber direction of the reinforcing fiber is pseudo-isotropic regardless of the drawing direction. Therefore, in the conventional method including the method of Patent Document 1, a base material provided with a layer of composite material in which the fiber direction of the reinforcing fiber has an angle of, for example, ± 45 degrees with respect to the longitudinal direction, that is, an angle stack is manufactured. There was a problem that was difficult. For this reason, there existed a problem that it was difficult to adjust performances, such as rigidity and intensity other than the longitudinal direction of the base material of the composite material shape | molded by pultrusion molding.

The present invention has been made in view of the above, and is a composite material base material capable of adjusting the performance of the composite material base material formed by pultrusion molding according to the required performance, a pultruded molding material, It aims at providing the manufacturing method of the base material of a composite material, and the manufacturing method of a pultrusion molding material.

In order to solve the above-described problems and achieve the object, a base material of a composite material is a base material of a composite material extending in the longitudinal direction and impregnating a reinforcing fiber with a thermosetting resin, and the reinforcing fiber is A first layer oriented along the longitudinal direction, laminated on the first layer, and the fiber direction of the reinforcing fiber is in the in-plane direction of the facing surface facing the first layer, and with respect to the longitudinal direction A second layer oriented in a predetermined angle direction, and when the required angle is the angle with respect to the longitudinal direction of the fiber direction of the reinforcing fiber required for the composite material, the predetermined angle is: It is more than the said required angle, It is characterized by the above-mentioned.

According to this configuration, the second layer is laminated on the first layer and the fiber direction of the reinforcing fiber is oriented in a direction at a predetermined angle with respect to the longitudinal direction, and the predetermined angle is required for the composite material. Therefore, the performance of the base material of the composite material formed by pultrusion can be adjusted according to the required performance.

In this configuration, it is preferable that a plurality of the first layers are provided, and the second layer is provided between the first layers. According to this configuration, the required angle can be realized with high accuracy.

In these configurations, a plurality of the second layers are stacked, and the plurality of the second layers are such that the predetermined angle in a layer close to the first layer is greater than the predetermined angle in a layer far from the first layer. Is preferably small. According to this configuration, the required angle can be realized with high accuracy.

In order to solve the above-described problems and achieve the object, the pultruded material is a composite material in which the predetermined angle is made closer to the required angle in any one of the plurality of composite material base materials described above. It is characterized by including the base material.

According to this configuration, a pultruded material whose performance is adjusted according to the required performance can be obtained.

In this configuration, it is preferable to further include a gap material disposed in a gap between the base materials of the composite material in which the predetermined angle is close to the required angle. According to this configuration, it is possible to obtain a pultrusion molding material in which the gap between the composite material molded bodies is suitably filled with the gap material.

In order to solve the above-described problems and achieve the object, a method for manufacturing a composite material base material is a method for manufacturing a composite material base material that extends in the longitudinal direction and impregnates a reinforcing fiber with a thermosetting resin. The first layer preparing step of preparing a first layer in which the fiber direction of the reinforcing fiber is oriented along the longitudinal direction, and the fiber direction of the reinforcing fiber is opposed to the first layer. A second layer preparation step of preparing a second layer oriented in an in-plane direction of the opposing surface and in a direction at a predetermined angle with respect to the longitudinal direction, and laminating the first layer and the second layer. The predetermined angle is equal to or greater than the required angle when an angle of the reinforcing fiber required for the composite material with respect to the longitudinal direction is a required angle. .

According to this configuration, the second layer is laminated on the first layer and the fiber direction of the reinforcing fiber is oriented in a direction at a predetermined angle with respect to the longitudinal direction, and the predetermined angle is required for the composite material. Therefore, the performance of the composite material substrate formed by pultrusion can be adjusted according to the required performance.

In this configuration, in the first layer preparation step, a first fiber layer composed of the reinforcing fibers is prepared, and in the second layer preparation step, a second fiber layer composed of the reinforcing fibers is prepared, In the lamination step, the first fiber layer and the second fiber layer are laminated, and the impregnation step of impregnating the thermosetting resin into the first fiber layer and the second fiber layer after the lamination step. It is preferable that it is further included. Alternatively, in this configuration, in the first layer preparing step, the reinforcing fiber is impregnated with a thermosetting resin to form the first layer, and in the second layer preparing step, the reinforcing fiber is thermoset resin. It is preferable to form the second layer by impregnating the first layer and the second layer by impregnating a thermosetting resin in the lamination step. According to these configurations, it is possible to efficiently manufacture a composite material base material capable of adjusting the performance of the composite material base material formed by pultrusion molding according to the required performance.

In these configurations, it is preferable that a plurality of the first layers are prepared in the first layer preparation step, and the second layer is laminated between the plurality of first layers in the lamination step. According to this configuration, the required angle can be realized with high accuracy.

In these configurations, in the second layer preparation step, a plurality of the second layers are formed, and in the stacking step, the plurality of second layers are formed at a predetermined angle in a layer close to the first layer, It is preferable to laminate the layers so as to be smaller than the predetermined angle in the layer far from the first layer. According to this configuration, the required angle can be realized with high accuracy.

In order to solve the above-described problems and achieve the object, a method for producing a pultruded material is obtained by drawing a plurality of composite material substrates produced by any one of the above-described composite material production methods. It includes a drawing step of forming a composite material molded body by molding.

In this configuration, it is preferable to further include a gap material forming step of arranging a gap material in the gap between the pultruded composite materials. According to this configuration, it is possible to obtain a pultrusion molding material in which the gap between the composite material molded bodies is suitably filled with the gap material.

According to the present invention, a composite material base material capable of adjusting the performance of the composite material base material formed by pultrusion according to the required performance, a pultruded material, a composite material base material manufacturing method, and A method for producing a pultruded material can be provided.

FIG. 1 is a schematic configuration diagram showing an example of a pultruded material according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the pultruded material of FIG. FIG. 3 is a schematic plan view showing an example of a base material of a composite material included in the pultrusion material of FIG. FIG. 4 is a schematic configuration diagram of the base material of the composite material of FIG. FIG. 5 is a schematic plan view showing an example of a base material of a composite material included in the pultruded material of FIG. FIG. 6 is a schematic configuration diagram of the base material of the composite material of FIG. FIG. 7 is a schematic configuration diagram illustrating an example of a base material of a composite material included in the pultrusion material of FIG. FIG. 8 is a schematic configuration diagram of an example of a pultrusion material manufacturing apparatus for manufacturing the pultrusion material of FIG. FIG. 9 is a schematic plan view showing an example of a composite material substrate used for a pultruded material including the composite material substrate of FIGS. 3 and 4. FIG. 10 is a schematic plan view showing an example of a composite material substrate used for a pultruded material including the composite material substrate of FIGS. 5 and 6. FIG. 11 is a schematic plan view showing an example of a composite material substrate used in a pultruded material including the composite material substrate of FIG. 7. FIG. 12 is a flowchart showing an example of a flow of a pultruded material manufacturing method for manufacturing the pultruded material of FIG. FIG. 13 is a flowchart showing an example of a flow of a pultruded material manufacturing method for manufacturing the pultruded material of FIG. FIG. 14 is a schematic configuration diagram of a conventional pultrusion material production apparatus. FIG. 15 is a schematic cross-sectional view of a pultruded material manufactured by a conventional pultruded material manufacturing apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, the constituent elements in the embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined.

[Embodiment]
FIG. 1 is a schematic configuration diagram illustrating a pultrusion material 10 that is an example of a pultrusion material according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the pultruded material 10 of FIG. The pultruded material 10 is pultruded along the longitudinal direction, which is the X-axis direction shown in FIG. 1, and has a shape extending in the X-axis direction. The pultruded material 10 has a predetermined shape in the YZ plane shown in FIG. 1, that is, in a cross section orthogonal to the longitudinal direction. The pultrusion molding material 10 is formed in a T shape in this embodiment, but is not limited to this, and is formed into any shape such as an I shape, an H shape, a U shape, and a cylindrical shape. It may be.

The pultrusion molding material 10 includes a plurality of

composite base materials

20a, 20b, and 20c, a gap material 22, and

surface layers

24a, 24b, and 24c, as shown in FIGS. The plurality of

composite base materials

20a, 20b, and 20c are in the form of a sheet extending in the X-axis direction, and are deformed and processed so as to have a predetermined shape in the YZ plane during pultrusion. . The

base materials

20a, 20b, and 20c of the composite material are all composite materials including reinforcing fibers and a thermosetting resin impregnated in the reinforcing fibers. The

base materials

20a, 20b, and 20c of the composite material form a composite material molded body that is pultruded into a predetermined shape. In the following description, when the

base materials

20a, 20b, and 20c of the composite material are not distinguished, they are appropriately referred to as the base material 20 of the composite material.

Examples of the reinforcing fibers of the base material 20 of the composite material include bundles of several hundred to several thousand basic fibers in the range of 5 μm to 7 μm. As for the basic fiber which comprises the reinforced fiber of the base material 20 of a composite material, all are carbon fiber. The basic fiber constituting the reinforcing fiber of the base material 20 of the composite material is not limited to this, and may be other plastic fiber, glass fiber, or metal fiber. As for the thermosetting resin of the base material 20 of a composite material, all are an epoxy resin. The thermosetting resin of the base material 20 of the composite material is not limited to this, and may be other thermosetting resins.

The thermosetting resin of the base material 20 of the composite material can be in a softened state, a cured state, and a semi-cured state. The softened state is a state before thermosetting the thermosetting resin. The softened state is a state that does not have self-supporting property, and is a state where the shape cannot be maintained when it is not supported by the support. The softened state is a state in which the thermosetting resin can be thermoset by being heated. The cured state is a state after thermosetting the thermosetting resin. The cured state is a state having self-supporting property, and is a state in which the shape can be maintained even when not supported by the support. The cured state is a state where the thermosetting resin cannot perform a thermosetting reaction even when heated. The semi-cured state is a state between a softened state and a cured state. The semi-cured state is a state in which thermosetting resin having a degree weaker than the cured state is made into a thermosetting resin. The semi-cured state is a state having self-supporting property, and is a state in which the shape can be maintained even when not supported by the support. The semi-cured state is a state in which the thermosetting resin can be thermoset by being heated. The base material 20 of the composite material is a prepreg in which the thermosetting resin is in a semi-cured state during the pultrusion molding or after the pultrusion molding, or the thermosetting resin is in a cured state. Is preferred.

The gap material 22 is arranged in a gap between a plurality of pultruded

composite base materials

20a, 20b, and 20c, that is, a gap between the composite material molded bodies. In the present embodiment, the gap material 22 is exemplified by carbon fiber or other reinforcing fibers impregnated with a resin and bundled, but the present invention is not limited to this, and other reinforcing fibers, thermosetting resins, A combination of these may be used.

The surface layers 24a, 24b, and 24c are layers provided on the outer surfaces in the Y direction or the Z direction of the

composite materials

20a, 20b, and 20c, respectively. In the present embodiment, the surface layers 24a, 24b, and 24c are exemplified by composite materials including reinforcing fibers oriented in the longitudinal direction and thermosetting resin impregnated in the reinforcing fibers, that is, 0 degree fiber layers. However, the present invention is not limited to this, and the surface layers 24a, 24b, and 24c may be omitted. Here, the 0-degree fiber layer is a layer in which the angle between the fiber direction and the longitudinal direction of the reinforcing fiber is 0 degrees or near 0 degrees. Examples of the reinforcing fiber and the thermosetting resin included in the 0-degree fiber layer used for the surface layers 24a, 24b, and 24c are the same as the reinforcing fiber and the thermosetting resin included in the base material 20 of the composite material. Hereinafter, when the surface layers 24a, 24b, and 24c are not distinguished, they are appropriately referred to as the surface layer 24.

FIG. 3 is a schematic plan view showing a composite material substrate 30 which is an example of the composite material substrate 20 included in the pultruded material 10 of FIG. FIG. 4 is a schematic configuration diagram of the base material 30 of the composite material of FIG. FIGS. 3 and 4 show a composite material base material 30 that is an example of a composite material base material 20c that is not subjected to bending deformation processing along the X-axis, but the composite

material base materials

20a and 20b are shown. The composite material base material 30 as an example has the same configuration. As shown in FIGS. 3 and 4, the composite material base 30 includes a first layer 32 and a second layer 34. In the present embodiment, the composite material substrate 30 has the second layer 34 laminated in the −Z direction of the first layer 32, but the present invention is not limited to this, and the + Z direction of the first layer 32 is not limited thereto. The second layer 34 may be laminated.

Here, the laminate of two or more layers is not simply a laminate of two or more layers, but also two or more layers are overlaid and then woven or the like separately. Also included are those that have been combined, and those in which two or more layers are stacked and then a binder is used separately. In the following, two or more layers are simply overlapped, two or more layers are stacked and then weaved separately, etc., and the fibers are combined, and two or more layers are stacked and a separate binder As a concept including the one using the above, the expression “laminated” is used.

The first layer 32 includes reinforcing fibers 32f and thermosetting resin impregnated in the reinforcing fibers 32f. In FIG. 3, since the thermosetting resin of each layer is mixed, the code | symbol is abbreviate | omitted, and illustration of the thermosetting resin in each layer is abbreviate | omitted in FIG. The first layer 32 is oriented along the X-axis direction in which the fiber direction of the reinforcing fibers 32f is the longitudinal direction. The second layer 34 includes reinforcing fibers 34f and a thermosetting resin impregnated in the reinforcing fibers 34f. In the second layer 34, the fiber direction of the reinforcing fibers 34 f is oriented in the in-plane direction of the facing surface facing the first layer 32, and in the direction of a predetermined angle 34θ with respect to the longitudinal direction. In the present embodiment, the in-plane direction of the facing surface that faces the first layer 32 coincides with the in-plane direction of the sheet.

The base material 30 of the composite material can have performance such as high rigidity and strength even with only the reinforcing fiber 32f and the reinforcing fiber 34f, and has higher performance such as rigidity and strength when impregnated with a thermosetting resin. Can do.

The angle 34θ is an angle indicated by a plus counterclockwise when viewed from the + Z direction and a minus clockwise when viewed from the + Z direction with respect to the X-axis direction which is the longitudinal direction. The angle 34θ can take a positive value from 0 degrees to 90 degrees and a negative value from −0 degrees to −90 degrees. 0 degrees and −0 degrees have the same meaning, and 90 degrees And -90 degrees are parameters having the same meaning. In this embodiment, the angle 34θ is exemplified by +45 degrees, but the present invention is not limited to this, and may be +30 degrees, +60 degrees, −30 degrees, −45 degrees, or −60 degrees. Hereinafter, a layer having an angle θ in the fiber direction of the reinforcing fiber is appropriately referred to as a θ fiber layer. For example, a layer in which the fiber direction angle of the reinforcing fiber is 0 degree is appropriately referred to as a 0 degree fiber layer, and a layer in which the angle of the reinforcing fiber direction is +45 degree is appropriately referred to as a +45 degree fiber layer. A layer having an angle of −45 degrees is appropriately referred to as a −45 degree fiber layer. Regarding the 0 degree fiber layer, since the +0 degree fiber layer and the −0 degree fiber layer are substantially the same, the + or − sign is not added, and is simply referred to as the 0 degree fiber layer. Further, regarding the 90 degree fiber layer, since the +90 degree fiber layer and the -90 degree fiber layer are substantially the same, the + or-sign is not attached, and is simply referred to as the 90 degree fiber layer.

The angle 34θ is an angle that accurately achieves the required angle. Here, the required angle is a design angle with respect to the longitudinal direction, which is the X-axis direction, in the fiber direction of the reinforcing fiber required for the pultruded material 10. The angle 34θ is most preferably equal to and uniform with the required angle in the base material 30 of the composite material. However, the angle 34θ is in the same plus / minus direction as the angle 34θ ′ of the initial angle described later, and is equal to or less than the angle 34θ ′. As long as the value is closer to the required angle than the angle 34θ ′, it may have a non-uniform distribution. For example, the angle 34θ may have a non-uniform distribution within a range where the absolute value is not less than the absolute value of the required angle and not more than the absolute value of the angle 34θ ′. Alternatively, the angle 34θ may have a non-uniform distribution within a range where the required angle is an average angle and the absolute value is less than or equal to the absolute value of the angle 34θ ′.

FIG. 5 is a schematic plan view showing a composite material substrate 40 which is an example of the composite material substrate 20 included in the pultruded material 10 of FIG. FIG. 6 is a schematic configuration diagram of the base material 40 of the composite material of FIG. FIGS. 5 and 6 show a composite material base material 40 as an example of the composite material base material 20c that is not subjected to bending deformation processing along the X-axis, but the composite

material base materials

20a and 20b are shown. The base material 40 of the composite material as an example has the same configuration. As shown in FIGS. 5 and 6, the composite base material 40 includes a first layer 42 and a plurality of

second layers

44 and 46. In the present embodiment, the composite material base material 40 has the

second layers

44 and 46 laminated in the −Z direction of the first layer 42, but the present invention is not limited to this, and the first layer 42

Second layers

44 and 46 may be stacked in the + Z direction. Further, the composite material base material 40 may have a second layer 44 laminated in the −Z direction of the first layer 42 and a second layer 46 laminated in the + Z direction of the first layer 42. The second layer 46 may be stacked in the −Z direction of 42, and the second layer 44 may be stacked in the + Z direction of the first layer 42.

The first layer 42 includes reinforcing fibers 42f and a thermosetting resin impregnated in the reinforcing fibers 42f. In FIG. 5, since the thermosetting resin of each layer is mixed, a code | symbol is abbreviate | omitted, and illustration of the thermosetting resin in each layer is abbreviate | omitted in FIG. The first layer 42 is oriented along the X-axis direction in which the fiber direction of the reinforcing fibers 42f is the longitudinal direction. The second layer 44 includes reinforcing fibers 44f and a thermosetting resin impregnated in the reinforcing fibers 44f. In the second layer 44, the fiber direction of the reinforcing fibers 44f is oriented in a direction of a predetermined angle 44θ with respect to the in-plane direction of the facing surface facing the first layer 42 and the X-axis direction that is the longitudinal direction. . In the present embodiment, the in-plane direction of the facing surface facing the first layer 42 coincides with the in-plane direction of the sheet. The second layer 46 includes reinforcing fibers 46f and a thermosetting resin impregnated in the reinforcing fibers 46f. In the second layer 46, the fiber direction of the reinforcing fibers 46f is oriented in the in-plane direction of the facing surface facing the first layer 42 and in the direction of a predetermined angle 46θ with respect to the longitudinal direction. Each of the angle 44θ and the angle 46θ is an angle indicated by the same method as the angle 34θ described above. In the present embodiment, the angle 44θ and the angle 46θ are exemplified by +45 degrees and −45 degrees, but the present invention is not limited to this, and +30 degrees and −30 degrees, +60 degrees and −60 degrees, −30 degrees. And +30, −45 degrees and +45, or −60 degrees and +60.

The base material 40 of the composite material can have performance such as high rigidity and strength only by the reinforcing fibers 42f, the reinforcing fibers 44f, and the reinforcing fibers 46f. By impregnating with the thermosetting resin, the higher rigidity and strength can be obtained. Can have performance.

The angle 44θ is an angle that achieves the required angle with high accuracy. Although it is most preferable that the angle 44θ is equal to and uniform with the required angle in the base material 40 of the composite material, it is the same plus or minus direction as the angle 44θ ′ of the initial angle described later, and is equal to or less than the angle 44θ ′. As long as the value is closer to the required angle than the angle 44θ ′, it may have a non-uniform distribution. For example, the angle 44θ may have a non-uniform distribution within the range where the absolute value is not less than the absolute value of the required angle and not more than the absolute value of the angle 44θ ′. Alternatively, the angle 44θ may have a non-uniform distribution within a range where the required angle is an average angle and the absolute value is less than or equal to the absolute value of the angle 44θ ′.

The angle 46θ is an angle that realizes the required angle with high accuracy. It is most preferable that the angle 46θ is equal to and uniform with the required angle in the base material 40 of the composite material. However, the angle 46θ is the same plus or minus direction as the angle 46θ ′ of the initial angle described later, and is equal to or less than the angle 46θ ′. As long as it is a value closer to the required angle than the angle 46θ ′, it may have a non-uniform distribution. For example, the angle 46θ may have a non-uniform distribution within the range where the absolute value is not less than the absolute value of the required angle and not more than the absolute value of the angle 46θ ′. Alternatively, the angle 46θ may have a non-uniform distribution within a range where the required angle is an average angle and the absolute value is equal to or smaller than the absolute value of the angle 46θ ′.

FIG. 7 is a schematic configuration diagram showing a composite material substrate 60 which is an example of the composite material substrate 20 included in the pultrusion material 10 of FIG. 1. In FIG. 7, a composite material base 60 that is an example of a composite material base 20 c that is not curved and deformed along the X-axis is shown, but examples of the

composite materials

20 a and 20 b The composite material base material 60 having the same structure is also provided. As shown in FIG. 7, the composite material base 60 includes a plurality of first layers 62 and a plurality of

second layers

64, 66, 68. Specifically, the composite base material 60 includes four first layers 62, two second layers 64, one second layer 66, and two second layers 68. . In the present embodiment, the composite material substrate 60 includes a plurality of first layers 62 and a plurality of

second layers

64, 66, and 68, wherein the first layer 62 and the second layer 64 are directed from the + Z direction to the −Z direction. , The second layer 66, the second layer 68, the first layer 62, the first layer 62, the second layer 64, the first layer 62, and the second layer 68 are laminated in this order, but the present invention is not limited to this. The layers may be laminated in any order. An arrow D represents a direction in which the composite material base material 60 is pultruded, and faces the X-axis direction, that is, the longitudinal direction.

The first layer 62 includes reinforcing fibers 62f and thermosetting resin impregnated in the reinforcing fibers 62f. In FIG. 7, illustration of the thermosetting resin in each layer is omitted. The first layer 62 is oriented along the X-axis direction in which the fiber direction of the reinforcing fibers 62f is the longitudinal direction. The second layer 64 includes reinforcing fibers 64f and a thermosetting resin impregnated in the reinforcing fibers 64f. In the second layer 64, the fiber direction of the reinforcing fibers 64f is oriented in the in-plane direction of the opposing surface facing the first layer 62 and in the direction of a predetermined angle 64θ with respect to the longitudinal direction. In the present embodiment, the in-plane direction of the facing surface that faces the first layer 62 coincides with the in-plane direction of the sheet. The second layer 66 includes reinforcing fibers 66f and a thermosetting resin impregnated in the reinforcing fibers 66f. In the second layer 66, the fiber direction of the reinforcing fibers 66f is oriented in the in-plane direction of the facing surface facing the first layer 62 and in a direction of a predetermined angle 66θ with respect to the longitudinal direction. The second layer 68 includes reinforcing fibers 68f and a thermosetting resin impregnated in the reinforcing fibers 68f. In the second layer 68, the fiber direction of the reinforcing fibers 68f is oriented in the in-plane direction of the facing surface facing the first layer 62 and in the direction of a predetermined angle 68θ with respect to the longitudinal direction. The angles 64θ, 66θ, and 68θ are all angles shown in the same manner as the angle 34θ described above. In the present embodiment, the angles 64θ, 66θ and the angle 68θ are exemplified by −45 degrees, 90 degrees, and +45 degrees, but the present invention is not limited thereto, and is −30 degrees, −45 degrees, −60 degrees, Any combination such as +30 degrees, +45 degrees, +60 degrees, and +90 degrees may be used.

The base material 60 of the composite material can have performance such as high rigidity and strength only by the reinforcing fiber 62f, the reinforcing fiber 64f, the reinforcing fiber 66f, and the reinforcing fiber 68f, and even higher rigidity can be obtained by impregnating the thermosetting resin. And performance such as strength.

The angle 64θ is an angle that accurately achieves the required angle. The angle 64θ is most preferably equal to and uniform with the required angle in the base material 60 of the composite material. However, the angle 64θ is in the same plus / minus direction as the angle 64θ ′ of the initial angle described later, and is equal to or less than the angle 64θ ′. As long as it is a value closer to the required angle than the angle 64θ ′, it may have a non-uniform distribution. For example, the angle 64θ may have a non-uniform distribution within the range where the absolute value is not less than the absolute value of the required angle and not more than the absolute value of the angle 64θ ′. Alternatively, the angle 64θ may have a non-uniform distribution within a range where the required angle is an average angle and the absolute value is less than or equal to the absolute value of the angle 64θ ′.

The angle 66θ is an angle that realizes the required angle with high accuracy. The angle 66θ is most preferably equal to and uniform with the required angle of 90 degrees in the base material 60 of the composite material, but if the value is close to the required angle of 90 degrees, the distribution is non-uniform. You may have. For example, the angle 66θ may have a non-uniform distribution with the required angle of 90 degrees as an average angle.

The angle 68θ is an angle that accurately achieves the required angle. It is most preferable that the angle 68θ is equal to and uniform with the required angle in the base material 60 of the composite material. However, the angle 68θ is in the same plus / minus direction as the angle 68θ ′ of the initial angle described later, and is equal to or less than the angle 68θ ′ As long as it is a value closer to the required angle than the angle 68θ ′, it may have a non-uniform distribution. For example, the absolute value of the angle 68θ may be not less than the absolute value of the required angle and may have a non-uniform distribution within the range of the absolute value of the angle 68θ ′ or less. Alternatively, the angle 68θ may have a non-uniform distribution within a range where the required angle is an average angle and the absolute value is equal to or smaller than the absolute value of the angle 68θ ′.

From the + Z direction, the composite base material 60 includes a first layer 62 that is a 0-degree fiber layer, a second layer 64 that is a −45-degree fiber, a second layer 66 that is a 90-degree fiber, and a first layer that is a + 45-degree fiber. Two layers 68 and a first layer 62 that is a 0-degree fiber layer are stacked in this order. That is, the composite material base material 60 includes a plurality of first layers 62 laminated, and the

second layers

64, 66, and 68 are provided between the plurality of first layers 62. 66 and 68 are pultruded so as to be pulled by the first layer 62. Therefore, the pultruded material 10 including the base material 60 of the composite material has angles 64θ, 66θ, 68θ in which the fiber directions of the reinforcing

fibers

64f, 66f, 68f oriented in a direction other than the longitudinal direction of the pultruded material 10 are oriented. However, this is a preferable mode for realizing the required angle with high accuracy.

In addition, the composite material base material 60 includes a plurality of

second layers

64, 66, and 68, and the

second layers

64, 66, and 68 have an angle 64θ in the second layer 64 close to the first layer 62 on the + Z direction side. Is smaller than the angle 66θ in the second layer 66 far from the same first layer 62, and the angle 68θ in the second layer 68 near the second first layer 62 from the + Z direction side is far from the same first layer 62. It is smaller than the angle 66θ in the two layers 66. However, the angles 64θ, 66θ, and 68θ are not limited to this, and the angles with the adjacent layers may be different. The pultruded material 10 including the composite material base 60 has angles 64θ, 66θ, 68θ in which the fiber directions of the reinforcing

fibers

64f, 66f, 68f oriented in a direction other than the longitudinal direction of the pultruded material 10 are oriented, This is a preferable mode for realizing the required angle with high accuracy.

FIG. 8 is a schematic configuration diagram of an example of a pultrusion material production apparatus 100 for producing the pultrusion material 10 of FIG. As shown in FIG. 8, the pultruded material manufacturing apparatus 100 includes fiber

layer supply units

110a, 110b, 110c,

resin pools

112a, 112b, 112c, a gap base material supply unit 120, a resin pool 122, and a surface. Fiber

layer supply units

130a, 130b, and 130c,

resin pools

132a, 132b, and 132c, and a molding die 140 are provided. In FIG. 8, the surface fiber layer supply unit 130b and the resin pool 132b are not shown.

The fiber layer supply unit 110a and the resin pool 112a are a series of apparatuses for introducing a composite material base 20a ′, which is a base of the composite material base 20a, into the molding die 140. The fiber layer supply unit 110a supplies a reinforcing fiber preform 20a ″ that is a source of the reinforcing fiber of the base material 20a of the composite material. Here, the preform refers to a composite material that is not impregnated with a thermosetting resin. The resin pool 112a is a pool in which a thermosetting resin is stored, and the preform 20a ″ is immersed in the preform 20a ″ to form the composite material base 20a ′. .

The fiber layer supply unit 110b and the resin pool 112b are a series of devices for introducing the composite material base material 20b ′, which is the base of the composite material base material 20b, into the molding die 140. The fiber layer supply unit 110b supplies a reinforcing fiber preform 20b ″ which is a base of the reinforcing fiber of the composite material base 20b. The resin pool 112b is a pool in which a thermosetting resin is accumulated, and the preform 20b ″ is impregnated with the thermosetting resin to form a composite material base 20b ′ by immersing the preform 20b ″. .

The fiber layer supply unit 110c and the resin pool 112c are a series of apparatuses for introducing the composite material base 20c ′, which is the base of the composite material base 20c, into the molding die 140. The fiber layer supply unit 110c supplies a reinforcing fiber preform 20c ″ which is a base of the reinforcing fiber of the composite material base 20c. The resin pool 112c is a pool in which a thermosetting resin is stored. By immersing the preform 20c ″, the preform 20c ″ is impregnated with the thermosetting resin to form a composite material base 20c ′. .

Hereinafter, when the preforms 20a ″, 20b ″, and 20c ″ are not distinguished, they are appropriately referred to as preforms 20 ″. In the following description, when the base materials 20a ′, 20b ′, and 20c ′ of composite materials are not distinguished, they are appropriately referred to as base materials 20 ′ of composite materials. Hereinafter, the fiber

layer supply units

110a, 110b, and 110c are appropriately referred to as the fiber layer supply unit 110 when not distinguished from each other. In the following, when the

resin pools

112a, 112b, and 112c are not distinguished, they are appropriately referred to as the resin pool 112.

The gap base material supply unit 120 and the resin pool 122 are a series of apparatuses for introducing a gap material 22 ′ that is a source of the gap material 22 into the molding die 140. The gap base material supply unit 120 supplies an indirect base material 22 ″ that is a reinforcing fiber that is a source of the reinforcing fibers of the gap material 22. In the resin pool 122, the indirect base material 22 ″ is impregnated with a thermosetting resin to form the gap material 22 ′.

The surface fiber layer supply unit 130a and the resin pool 132a are a series of devices for introducing the surface layer 24a ′ that is the basis of the surface layer 24a into the molding die 140. The surface fiber layer supply unit 130a supplies the reinforcing fibers 24a '' that are the basis of the reinforcing fibers of the surface layer 24a. The resin pool 132a forms the surface layer 24a 'by impregnating the reinforcing fibers 24a' 'with a thermosetting resin.

The surface fiber layer supply unit 130b and the resin pool 132b are a series of devices for introducing the surface layer 24b ′ that is the basis of the surface layer 24b into the molding die 140. The surface fiber layer supply unit 130b supplies the reinforcing fibers 24b '' that are the basis of the reinforcing fibers of the surface layer 24b. In the resin pool 132b, the reinforcing fiber 24b ″ is impregnated with a thermosetting resin to form the surface layer 24b ′. In FIG. 8, the surface layer 24b ′ and the reinforcing fibers 24b ″ are not shown.

The surface fiber layer supply unit 130c and the resin pool 132c are a series of devices for introducing the surface layer 24c ′ that is the basis of the surface layer 24c into the molding die 140. The surface fiber layer supply unit 130c supplies the reinforcing fibers 24c '' that are the basis of the reinforcing fibers of the surface layer 24c. The resin pool 132c forms the surface layer 24c ′ by impregnating the reinforcing fibers 24c ″ with a thermosetting resin.

Hereinafter, when the reinforcing fibers 24a ″, 24b ″, and 24c ″ are not distinguished, they are appropriately referred to as reinforcing fibers 24 ″. In the following description, when the surface layers 24a ′, 24b ′, and 24c ′ are not distinguished, they are appropriately referred to as the surface layer 24 ′. In the following, when the surface fiber

layer supply units

130a, 130b, and 130c are not distinguished, they are appropriately referred to as the surface fiber layer supply unit 130. In the following, when the

resin pools

132a, 132b, and 132c are not distinguished, they are appropriately referred to as the resin pool 132.

The base material 20 ′, the gap material 22 ′, and the surface layer 24 ′ of the composite material are deformed so as to have a predetermined shape in the YZ plane and are introduced into the molding die 140. For example, the base material 20 a ′ of the composite material and the base material 20 b ′ of the composite material are bent along the X-axis direction at predetermined positions and introduced into the molding die 140. The molding die 140 performs pultrusion processing of the base material 20 ′, the gap material 22 ′, and the surface layer 24 ′ of the composite material introduced from each series of apparatuses.

The molding die 140 has a heating part, and it is preferable that the thermosetting resin contained in the base material 20 ′, the gap material 22 ′, and the surface layer 24 ′ of the composite material be in a semi-cured state or a cured state. Or it has a heating part between each of the resin pool 112, the resin pool 122, and the resin pool 132 and the molding die 140, and is included in the base material 20 ′, the gap material 22 ′, and the surface layer 24 ′ of the composite material. The thermosetting resin is preferably in a semi-cured state or a cured state.

FIG. 9 is a schematic plan view showing a composite material base material 30 ′ which is an example of a composite material base material 20 ′ used in the pultruded material 10 including the composite material base material 30 shown in FIGS. 3 and 4. . In FIG. 9, a composite material base material 30 ′ as an example of a composite material base material 20 c ′ is shown, but a composite material base material 30 ′ as an example of the composite material base materials 20 a ′ and 20 b ′ is shown. Has the same configuration. As shown in FIG. 9, the composite material base 30 ′ includes a first layer 32 ′ and a second layer 34 ′. The first layer 32 ′ is a layer that is the basis of the first layer 32. The second layer 34 ′ is a layer that is the basis of the second layer 34. The order of lamination of the composite material base material 30 ′ is the same as the order of lamination of the composite material base material 30.

The first layer 32 'includes reinforcing fibers 32f' and thermosetting resin impregnated in the reinforcing fibers 32f '. In FIG. 9, illustration of the thermosetting resin in each layer is omitted. The first layer 32 ′ is oriented along the X-axis direction in which the fiber direction of the reinforcing fibers 32 f ′ is the longitudinal direction. The second layer 34 ′ includes reinforcing fibers 34 f ′ and a thermosetting resin impregnated with the reinforcing fibers 34 f ′. In the second layer 34 ′, the fiber direction of the reinforcing fibers 34 f ′ is oriented in the in-plane direction of the facing surface facing the first layer 32 ′ and in the direction of a predetermined angle 34θ ′ with respect to the longitudinal direction. Here, the angle 34θ ′ is an angle of the reinforcing fiber 34f ′ before the pultrusion molding, that is, an initial angle. In the present embodiment, the in-plane direction of the facing surface that faces the first layer 32 ′ coincides with the in-plane direction of the sheet. The angle 34θ ′ is an angle indicated by the same method as the angle 34θ described above.

The angle 34θ ′ is the same as the angle 34θ with respect to the longitudinal direction in the fiber direction of the reinforcing fiber 34f in the pultruded material 10 in which the composite material base material 30 ′ is pultruded along the longitudinal direction. The value is large. That is, the angle 34θ ′ has the same or larger absolute value in the same direction as plus / minus than the angle 34θ that is the required angle. That is, the angle 34θ ′ is not less than the angle 34θ that is the required angle. It is preferable that the angle 34θ ′ has the same plus / minus direction and a larger absolute value than the angle 34θ that is the required angle. Specifically, when the angle 34θ is +45 degrees, the angle 34θ ′ is exemplified by +60 degrees. The angle 34θ ′ is determined to be a value that is the same plus or minus as the angle 34θ and has a larger absolute value by a certain angle than the required angle, depending on the drawing force applied during pultrusion and the position of the layer.

FIG. 10 is a schematic plan view showing a composite material base 40 ′ which is an example of a composite base 20 ′ used in the pultruded material 10 including the composite base 40 of FIGS. 5 and 6. . In FIG. 10, a composite material base 40 ′ is shown as an example of a composite material base 20 c ′ that is not curved and deformed along the X-axis, but the composite base materials 20 a ′ and 20 b are shown. A composite material base material 40 ′, which is an example of ′, has the same configuration. As shown in FIG. 10, the composite material base 40 ′ includes a first layer 42 ′ and a plurality of second layers 44 ′ and 46 ′. The first layer 42 ′ is a layer that is the basis of the first layer 42. The second layer 44 ′ is a layer that is the basis of the second layer 44. The second layer 46 ′ is a layer that is the basis of the second layer 46. The order of lamination of the composite material base material 40 ′ is the same as the order of lamination of the composite material base material 40.

The first layer 42 'includes reinforcing fibers 42f' and thermosetting resin impregnated in the reinforcing fibers 42f '. In FIG. 10, illustration of the thermosetting resin in each layer is omitted. The first layer 42 'is oriented along the X-axis direction in which the fiber direction of the reinforcing fibers 42f' is the longitudinal direction. The second layer 44 ′ includes reinforcing fibers 44f ′ and thermosetting resin impregnated in the reinforcing fibers 44f ′. In the second layer 44 ′, the fiber direction of the reinforcing fiber 44f ′ is in the in-plane direction of the facing surface facing the first layer 42 ′ and in the direction of a predetermined angle 44θ ′ with respect to the X-axis direction which is the longitudinal direction. Oriented. Here, the angle 44θ ′ is an angle of the reinforcing fiber 44f ′ before the pultrusion molding, that is, an initial angle. In the present embodiment, the in-plane direction of the facing surface facing the first layer 42 ′ coincides with the in-plane direction of the sheet. The second layer 46 'includes reinforcing fibers 46f' and thermosetting resin impregnated in the reinforcing fibers 46f '. In the second layer 46 ′, the fiber direction of the reinforcing fibers 46 f ′ is oriented in the in-plane direction of the facing surface facing the first layer 42 ′ and in the direction of a predetermined angle 46θ ′ with respect to the longitudinal direction. Here, the angle 46θ ′ is an angle of the reinforcing fiber 46f ′ before the pultrusion molding, that is, an initial angle. Both the angle 44θ ′ and the angle 46θ ′ are angles shown in the same manner as the angle 34θ described above.

The angle 44θ ′ is the same as the angle 44θ with respect to the longitudinal direction of the fiber direction of the reinforcing fiber 44f in the pultruded material 10 in which the composite material base material 40 ′ is pultruded along the longitudinal direction. The value is large. That is, the angle 44θ ′ has the same or larger absolute value in the same direction as plus / minus than the angle 44θ that is the required angle. That is, the angle 44θ ′ is not less than the angle 44θ that is the required angle. It is preferable that the angle 44θ ′ has the same plus / minus direction and a larger absolute value than the angle 44θ that is the required angle. Specifically, when the angle 44θ is +45 degrees, the angle 44θ ′ is exemplified by +60 degrees. The angle 44θ ′ is determined to have the same plus / minus as the angle 44θ and an absolute value larger than the angle 44θ by a certain angle depending on the drawing force applied at the time of pultrusion and the position of the layer.

The angle 46θ ′ is the same as the angle 46θ with respect to the longitudinal direction of the fiber direction of the reinforcing fiber 46f in the pultruded material 10 in which the composite material base material 40 ′ is pultruded along the longitudinal direction. The value is large. That is, the angle 46θ ′ has the same or larger absolute value in the same direction as plus / minus than the angle 46θ that is the required angle. That is, the angle 46θ ′ is not less than the angle 46θ that is the required angle. It is preferable that the angle 46θ ′ has the same plus / minus direction and a larger absolute value than the angle 46θ that is the required angle. Specifically, when the angle 46θ is −45 degrees, the angle 46θ ′ is exemplified by −60 degrees. The angle 46θ ′ is determined to be a value that is the same plus or minus as the angle 46θ and has a larger absolute value by a certain angle than the angle 46θ in accordance with the drawing force applied at the time of pultrusion and the position of the layer.

FIG. 11 is a schematic plan view showing a composite material base material 60 ′, which is an example of the composite material base material 20 ′ used in the pultruded material 10 including the composite material base material 60 of FIG. In FIG. 11, a composite material base material 60 ′ is shown as an example of a composite material base material 20 c ′ that is not curvedly deformed along the X-axis, but the composite material base materials 20 a ′ and 20 b are shown. A composite material base material 60 ', which is an example of', also has the same configuration. As shown in FIG. 11, the composite material base 60 ′ includes a plurality of first layers 62 ′ and a plurality of second layers 64 ′, 66 ′, 68 ′. Specifically, the composite base material 60 ′ includes four first layers 62 ′, two second layers 64 ′, one second layer 66 ′, and two second layers 68. ′. The first layer 62 ′ is a layer that is a source of the first layer 62. The second layer 64 ′ is a layer that is the basis of the second layer 64. The second layer 66 ′ is a layer that is a source of the second layer 66. The second layer 68 ′ is a layer that is the basis of the second layer 68. The order of lamination of the composite material bases 60 ′ is the same as the order of lamination of the composite material bases 60. An arrow D ′ represents a direction in which the base material 60 ′ of the composite material is pultruded from now on, and faces the X-axis direction, that is, the longitudinal direction. The arrow D ′ points in the same direction as the arrow D in FIG.

The first layer 62 ′ includes reinforcing fibers 62f ′ and thermosetting resin impregnated in the reinforcing fibers 62f ′. In FIG. 11, illustration of the thermosetting resin in each layer is omitted. The first layer 62 ′ is oriented along the X-axis direction in which the fiber direction of the reinforcing fibers 62 f ′ is the longitudinal direction. The second layer 64 ′ includes reinforcing fibers 64f ′ and a thermosetting resin impregnated in the reinforcing fibers 64f ′. In the second layer 64 ′, the fiber direction of the reinforcing fibers 64 f ′ is oriented in the in-plane direction of the facing surface facing the first layer 62 ′ and in a direction of a predetermined angle 64θ ′ with respect to the longitudinal direction. Here, the angle 64θ ′ is an angle of the reinforcing fiber 64f ′ before the pultrusion molding, that is, an initial angle. In the present embodiment, the in-plane direction of the facing surface facing the first layer 62 ′ coincides with the in-plane direction of the sheet. The second layer 66 ′ includes reinforcing fibers 66f ′ and thermosetting resin impregnated in the reinforcing fibers 66f ′. In the second layer 66 ′, the fiber direction of the reinforcing fibers 66 f ′ is oriented in the in-plane direction of the facing surface facing the first layer 62 ′ and in a direction of a predetermined angle 66θ ′ with respect to the longitudinal direction. Here, the angle 66θ ′ is an angle of the reinforcing fiber 66f ′ before the pultrusion molding, that is, an initial angle. The second layer 68 ′ includes reinforcing fibers 68f ′ and thermosetting resin impregnated in the reinforcing fibers 68f ′. In the second layer 68 ′, the fiber direction of the reinforcing fibers 68f ′ is oriented in the in-plane direction of the facing surface facing the first layer 62 ′ and in the direction of a predetermined angle 68θ ′ with respect to the longitudinal direction. Here, the angle 68θ ′ is an angle of the reinforcing fiber 68f ′ before the pultrusion molding, that is, an initial angle. The angles 64θ ′, 66θ ′, and 68θ ′ are all angles indicated by the same method as the angle 34θ described above.

The angle 64θ ′ is the same as the angle 64θ with respect to the longitudinal direction in the fiber direction of the reinforcing fiber 64f in the pultruded material 10 in which the composite material base material 60 ′ is pultruded along the longitudinal direction. The value is large. That is, the angle 64θ ′ has the same or larger absolute value than the angle 64θ, which is the required angle, in the same direction. That is, the angle 64θ ′ is equal to or larger than the angle 64θ that is the required angle. It is preferable that the angle 64θ ′ has the same plus / minus direction and a larger absolute value than the angle 64θ that is the required angle. Specifically, when the angle 64θ is −45 degrees, the angle 64θ ′ is exemplified by −60 degrees. The angle 64θ ′ is determined to be a value that is the same as the angle 64θ and has a larger absolute value by a certain angle than the angle 64θ, depending on the drawing force applied at the time of pultrusion and the position of the layer.

The angle 66θ ′ is the same as the angle 66θ with respect to the longitudinal direction in the fiber direction of the reinforcing fiber 66f in the pultruded material 10 in which the base material 60 ′ of the composite material is pultruded along the longitudinal direction. That is, the angle 66θ ′ is the same as the required angle 66θ. That is, the angle 66θ ′ is not less than the angle 66θ that is the required angle. Specifically, the case where the angle 66θ is 90 degrees and the angle 66θ ′ is 90 degrees is exemplified. This is because the maximum value of the angle with respect to the X-axis direction, which is the longitudinal direction of the reinforcing fiber, is 90 degrees.

The angle 68θ ′ is the same as the angle 68θ with respect to the longitudinal direction of the fiber direction of the reinforcing fiber 68f in the pultruded material 10 in which the composite material base 60 ′ is pultruded along the longitudinal direction. The value is large. That is, the angle 68θ ′ has the same or larger absolute value in the same direction as plus / minus than the angle 68θ that is the required angle. That is, the angle 68θ ′ is not less than the angle 68θ that is the required angle. It is preferable that the angle 68θ ′ has the same plus / minus direction and a larger absolute value than the angle 68θ that is the required angle. Specifically, when the angle 68θ is +45 degrees, the angle 68θ ′ is exemplified by +60 degrees. The angle 68θ ′ is determined to have the same plus / minus as the angle 68θ and an absolute value larger than the angle 68θ by a certain angle depending on the drawing force applied at the time of pultrusion and the position of the layer.

From the + Z direction, the composite base material 60 'includes a first layer 62' that is a 0 degree fiber layer, a second layer 64 'that is a -60 degree fiber, a second layer 66' that is a 90 degree fiber, and +60 degrees. The second layer 68 ′, which is a fiber, and the first layer 62 ′, which is a 0-degree fiber layer, are stacked in this order. That is, in the composite material base 60 ′, a plurality of first layers 62 ′ are stacked, and second layers 64 ′, 66 ′, and 68 ′ are provided between the stacked first layers 62 ′. The second layers 64 ′, 66 ′, and 68 ′ can be pultruded using the molding die 140 in such a manner that the second layers 64 ′, 66 ′, and 68 ′ are pulled by the first layer 62 ′. Therefore, the composite material base material 60 ′ is a fiber of reinforcing

fibers

64 f, 66 f, 68 f in the pultruded material 10 including the composite material base material 60 manufactured by pultrusion of the composite material base material 60 ′. The required angle can be accurately realized at the angles 64θ, 66θ, and 68θ in which the directions are oriented.

In addition, the base material 60 'of the composite material has a plurality of second layers 64', 66 ', 68' stacked thereon, and the second layers 64 ', 66', 68 'are formed on the first layer 62' on the + Z direction side. The second layer 64 ′ closer to the second first layer 62 ′ from the + Z direction side is smaller than the angle 66θ ′ of the second layer 66 ′ far from the same first layer 62 ′. The angle 68θ ′ at 68 ′ is smaller than the angle 66θ ′ at the second layer 66 ′ far from the same first layer 62 ′. Therefore, the composite material base material 60 ′ has fiber direction angles 64θ, 66θ, 68θ of the reinforcing

fibers

64 f, 66 f, 68 f in the pultruded material 10 including the composite material base material 60 manufactured by pultrusion. However, the required angle can be realized with high accuracy.

The operation of the pultrusion material manufacturing apparatus 100 according to this embodiment will be described below. FIG. 12 is a flowchart showing an example of a flow of a pultruded material manufacturing method for manufacturing the pultruded material 10 of FIG. A pultruded material manufacturing method according to this embodiment, which is a processing method executed by the pultruded material manufacturing apparatus 100, will be described with reference to FIG. The method for manufacturing a pultruded material according to the present embodiment includes a first layer preparation step, a second layer preparation step, and a lamination step. In detail, as shown in FIG. 12, the manufacturing method of the pultrusion molding material which concerns on this embodiment is 1st fiber layer preparation process S12 as a 1st layer preparation process, and 2nd fiber as a 2nd layer preparation process. It includes a layer preparation step S14, a lamination step S16, an impregnation step S18, a pultrusion step S22, and a gap material formation step S24. In the following, the first fiber layer preparation step S12, the second fiber layer preparation step S14, the lamination step S16, the impregnation step S18, the pultrusion step S22, and the gap material formation step S24 are simply performed as steps S12, S14, respectively. These are referred to as step S16, step S18, step S22, and step S24.

First, a first fiber layer composed of reinforcing fibers whose fiber direction is aligned along the longitudinal direction is prepared (step S12). More specifically, the first fiber layer is a 0-degree fiber layer preform. The 0-degree fiber layer preform refers to a 0-degree fiber layer that is not impregnated with a thermosetting resin. In the following, similar expressions are used for fiber layers at other angles. When manufacturing the pultrusion molding material 10 including the composite material base material 30, one first fiber layer is prepared in step S12. When manufacturing the pultrusion molding material 10 including the base material 40 of the composite material, in step S12, one first fiber layer is prepared. When manufacturing the pultrusion molding material 10 including the composite material base 60, four first fiber layers are prepared in step S12. It is possible to produce a pultrusion molding material 10 including a composite material base material having a high rigidity and strength even with reinforcing fibers alone and impregnating with a thermosetting resin. it can.

In addition, a second fiber layer is prepared which is composed of reinforcing fibers oriented in a direction at a predetermined angle with respect to the longitudinal direction and in the in-plane direction of the facing surface where the fiber direction faces the first layer. (Step S14). In the present embodiment, the in-plane direction of the facing surface in which the fiber direction faces the first layer coincides with the in-plane direction of the sheet. Specifically, the second fiber layer includes a +30 degree fiber layer preform, a +45 degree fiber layer preform, a +60 degree fiber layer preform, and a 90 degree fiber depending on the orientation angle of the reinforcing fibers in the fiber direction. Examples include a preform for a layer, a preform for a −30 degree fiber layer, a preform for a −45 degree fiber layer, a preform for a −60 degree fiber layer, and the like. It is possible to produce a pultrusion molding material 10 including a composite material base material having a high rigidity and strength even with reinforcing fibers alone and impregnating with a thermosetting resin. it can.

When the pultruded material 10 including the composite material base 30 is manufactured, in step S14, the orientation angle of the reinforcing fibers in the fiber direction is more than the second layer 34 (+45 degree fiber layer) included in the composite material base 30. Prepare one preform of the same or larger 60 degree fiber layer in the same plus or minus direction. When the pultruded material 10 including the composite material 40 is manufactured, in step S14, the orientation angle of the reinforcing fibers in the fiber direction is more than the second layer 44 (+45 degree fiber layer) included in the composite material 40. The same or larger +60 degree fiber layer preform in the same plus or minus direction, and the fiber layer of the reinforcing fiber in the fiber direction of the second layer 46 (-45 degree fiber layer) included in the base material 40 of the composite material One preform of -60 degree fiber layer having the same or larger orientation angle in the same plus or minus direction is prepared.

When the pultruded material 10 including the composite material 60 is manufactured, in step S14, the orientation of the reinforcing fibers in the fiber direction is more than the second layer 64 (−45 degree fiber layer) included in the composite material 60. Two preforms with the same or larger angle in the same plus / minus direction, the -60 degree fiber layer preform, the second layer 66 (90 degree fiber layer) included in the base material 60 of the composite material, and the fiber direction of the reinforcing fiber. One preform of 90-degree fiber layer with the same orientation angle and the second fiber 68 (+ 45-degree fiber layer) included in the composite base material 40 have the same orientation angle in the fiber direction of the reinforcing fiber. Prepare two preforms of the same or larger +60 degree fiber layer in the negative direction.

In this embodiment, although it processes in order of 1st fiber layer preparation process S12 and 2nd fiber layer preparation process S14, this invention is not limited to this, 2nd fiber layer preparation process S14, 1st You may process in order of fiber layer preparation process S12, and you may process 1st fiber layer preparation process S12 and 2nd fiber layer preparation process S14 simultaneously.

Next, the first fiber layer prepared in step S12 and the second fiber layer prepared in step S14 are laminated to form a preform 20 ″ (step S16). Then, the formed preform 20 ″ is wound around a roll or the like, and provided as the fiber layer supply unit 110 in the pultruded material manufacturing apparatus 100. Here, “stacking two or more layers” means not only simply stacking two or more layers, but also stacking fibers by stacking two or more layers and then weaving separately. In addition, after the two or more layers are overlapped, a separate binder is used. In the following, two or more layers are simply overlapped, two or more layers are overlapped and then weaved separately, etc., and fibers are combined, and after two or more layers are overlapped, a separate binder is used. The concept of stacking is used as a concept including things.

When the pultruded material 10 including the composite material 30 is manufactured, the 0-degree fiber layer prepared in step S12 is prepared so that the stacking order is the same as that of the composite material 30 ′ shown in FIG. The reforming and the +60 degree fiber layer preform prepared in step S14 are laminated. When the pultruded material 10 including the composite material 40 is manufactured, the 0-degree fiber layer prepared in Step S12 is prepared so that the stacking order is the same as the composite material 40 ′ shown in FIG. The reforming and the +60 degree fiber layer preform and the −60 degree fiber layer preform prepared in step S14 are laminated.

When manufacturing the pultruded material 10 including the composite material base 60, the four 0 degree fibers prepared in step S12 so that the stacking order is the same as the composite material base 60 'shown in FIG. The two layered preforms, the -60 degree fiber layer preform, the 90 degree fiber layer preform, and the +60 degree fiber layer preform prepared in step S14 are laminated.

In the pultruded material manufacturing method according to the present embodiment, when the pultruded material 10 including the composite material base 60 is manufactured, in step S16, the stacking order is the composite material base 60 ′ shown in FIG. Laminate each preform to be the same. Therefore, the composite material base material 60 ′ has fiber direction angles 64θ, 66θ, 68θ of the reinforcing

fibers

Next, the preform 20 ″ formed in step S16 is immersed in the resin pool 132, so that the first fiber layer and the second fiber layer included in the preform 20 ″ are impregnated with the thermosetting resin, and combined. A base material 20 'of material is formed (step S18). By step S18, all the first fiber layers become the first layer, and all the second fiber layers become the second layer. In the present embodiment, the first fiber layer and the second fiber layer are impregnated with the thermosetting resin by immersing the first fiber layer and the second fiber layer in the thermosetting resin stored in the resin pool. The present invention is not limited to this, and the first fiber layer and the second fiber layer are impregnated with the thermosetting resin by using other methods such as applying a thermosetting resin to the first fiber layer and the second fiber layer. May be.

The plurality of composite base materials 20 ′ formed in step S <b> 18 are deformed so as to have a predetermined shape in a plane orthogonal to the longitudinal direction, and are transferred to the molding die 140 while being conveyed in the longitudinal direction. be introduced. For example, the composite material base material 20a ′ and the composite material base material 20b ′ are bent along the X-axis direction at predetermined locations, and a T-shape is formed by a plurality of composite material base materials 20 ′. And introduced into the molding die 140. A plurality of composite material base materials 20 ′ introduced into the molding die 140 are pultruded to form a composite material molded body including the plurality of composite material base materials 20 (step S 22). By the step S22, a strong pulling force is applied in the X-axis direction to the second layer reinforcing fibers in the base material 20 'of the composite material, and the angle with respect to the longitudinal direction in the fiber direction is 0 degree in a part of the second fiber layer. It can be approached. That is, in step S22, the second layer reinforcing fiber in the composite base material 20 ′ is applied with a strong pulling force in the X-axis direction, and the angle with respect to the longitudinal direction in the fiber direction is the same except for the 90-degree fiber layer. It remains smaller in the negative direction. Thereby, the angle of the reinforcing material of the second layer in the base material 20 of the composite material with respect to the longitudinal direction of the fiber direction in the base material 20 ′ of the composite material whose absolute value is larger than the required angle by a certain angle. Compared with the angle of the reinforcing fiber of the second layer with respect to the longitudinal direction of the fiber direction, the direction remains the same plus / minus direction and can be made closer to the required angle which is a desired angle.

Here, by controlling the pulling-out force in step S22, the angle of the reinforcing fiber is kept the same, or the angle of the reinforcing fiber is made smaller while keeping the same plus / minus direction, and the angle of the reinforcing fiber is kept the same plus / minus. Thus, it is possible to appropriately control how much it is reduced in the direction of. Specifically, if the pulling force in step S22 is less than a certain value, the angles of the reinforcing fibers can be kept the same. If the pulling-out force in step S22 is a certain level or more, the angle of the reinforcing fiber can be reduced while keeping the same plus / minus direction. By controlling the extent to which the pulling force in step S22 is greater than or equal to a certain value and increasing it with respect to the certain value, it is possible to control how much the angle of the reinforcing fiber is decreased in the same plus / minus direction.

For example, when the pultruded material 10 including the composite base material 60 is manufactured, the second layer 64 ′ (−60 degree fiber layer) including the reinforcing fiber 64f ′ is immediately stacked in the + Z direction. A strong tensile stress is applied in the X-axis direction via 62 '(0 degree fiber layer), and the angle 64θ' in the fiber direction of the reinforcing fiber 64f 'is changed to a direction along the X-axis direction so that the angle is the same or smaller. Thus, the second layer 64 (-45 degree fiber layer) including the reinforcing fibers 64f is formed. In addition, the second layer 68 ′ (+60 degree fiber layer) including the reinforcing fiber 68f ′ has a strong tensile force in the X-axis direction via the first layer 62 ′ (0 degree fiber layer) laminated immediately in the −Z direction. When stress is applied, the angle 68θ ′ in the fiber direction of the reinforcing fiber 68f ′ is changed in the direction along the X-axis direction so that the angle becomes the same or smaller, and the second layer 68 including the reinforcing fiber 68f (−45 degree fiber layer) ) On the other hand, the second layer 66 ′ (90 degree fiber layer) including the reinforcing fiber 66f ′ is composed of the second layer 64 ′ (−60 degree fiber layer) and the first layer 62 ′ (0 degree fiber) laminated in the + Z direction. Layer), and the second layer 68 ′ (+60 degree fiber layer) and the first layer 62 ′ (0 degree fiber layer) laminated in the −Z direction, a tensile stress is applied in the X-axis direction. However, since the fiber direction angle 66θ ′ of the reinforcing fiber 66f ′ is 90 degrees, the fiber direction angle 66θ ′ of the reinforcing fiber 66f ′ is not changed in the direction along the X-axis direction, and includes the reinforcing fiber 66f. It becomes the 2nd layer 66 (90 degree fiber layer).

In parallel to the processing from step S12 to step S22, the indirect base material 22 ″ is supplied by the gap base material supply unit 120, and the indirect base material 22 ″ is immersed in the resin pool 122. ′ Is impregnated with a thermosetting resin to form a gap material 22 ′, and the gap material 22 ′ is arranged in a gap between a plurality of composite material base materials 20 ′ and molded together with a plurality of composite material base materials 20. It is preferable to introduce the gap material 22 into the gap of the composite material molded body by introducing it into the mold 140 (step S24). In step S24, the pultruded material manufacturing method according to the present embodiment places the gap material 22 in the gap of the composite material molded body. Therefore, the pultrusion molding material 10 in which the gap between the composite material moldings is suitably filled with the gap material 22 can be manufactured.

After step S18, it is preferable that the thermosetting resin contained in the base material 20 ′ of the composite material is made into a semi-cured state or a cured state by the heating unit. In the middle of step S24, it is preferable that the thermosetting resin contained in the gap material 22 ′ is brought into a semi-cured state or a cured state by the heating unit.

In the method of manufacturing the pultruded material according to the present embodiment, the surface layer 24 ′ can be further provided on the outer surface in the Y direction or the Z direction of the base material 20 ′ of the composite material. It can be provided on the outer surface of the composite substrate 20. Specifically, in parallel with the processing from step S12 to step S22 and the processing of step S24, the reinforcing fiber 24 ″ is supplied by the surface fiber layer supply unit 130, and the reinforcing fiber 24 ″ is immersed in the resin pool 132. Thus, the reinforcing fiber 24 ″ is impregnated with a thermosetting resin to form a surface layer 24 ′, and the surface layer 24 ′ is arranged on the outer surface of the base material 20 ′ of the composite material. The surface layer 24 can be provided on the outer surface of the composite material substrate 20 by introducing it into the molding die 140 together with the substrate 20. In the method of manufacturing the pultruded material according to the present embodiment, the surface layer 24 ′ can be provided on the outer surface in the Y direction or the Z direction of the base material 20 ′ of the composite material. Molding can be performed with high accuracy.

Since the pultruded material manufacturing method according to the present embodiment has the above-described configuration, the composite material base material and the pultruded material can be manufactured so that the fiber direction of the reinforcing fiber achieves the required angle. The performance of the composite material base material formed by pultrusion can be adjusted according to the required performance. Therefore, the method for producing a pultruded material according to the present embodiment can adjust performances such as rigidity and strength other than the longitudinal direction of the base material of the composite material molded by pultrusion.

A modification of the method for manufacturing a pultrusion material according to this embodiment will be described below. FIG. 13 is a flowchart showing an example of a flow of a pultrusion material manufacturing method for manufacturing the pultrusion material 10 of FIG. A modification of the pultrusion material manufacturing method according to the present embodiment will be described with reference to FIG. As shown in FIG. 13, the modification example of the method for manufacturing the pultruded material according to the present embodiment includes a first layer forming step S32 as a first layer preparing step and a second layer forming step as a second layer preparing step. S34, lamination | stacking process S36, pultrusion molding process S22, and gap | interval material formation process S24 are provided. Hereinafter, the first layer forming step S32, the second layer forming step S34, and the stacking step S36 are simply referred to as step S32, step S34, and step S36, respectively, as appropriate.

First, a first layer is formed by impregnating a first fiber layer composed of reinforcing fibers whose fiber direction is oriented along the longitudinal direction with a thermosetting resin (step S32). As a method for impregnating the thermosetting resin, any method described in Step S18 can be used. Specifically, the first layer is a base material of a composite material in which a 0-degree fiber layer is impregnated with a thermosetting resin. When manufacturing the pultrusion molding material 10 including the base material 30 of the composite material, in step S32, one first layer is prepared. When manufacturing the pultrusion molding material 10 including the base material 40 of the composite material, in step S32, one first layer is prepared. When manufacturing the pultrusion molding material 10 including the base material 60 of the composite material, in step S32, four first layers are prepared.

Also, thermosetting is performed on the second fiber layer composed of reinforcing fibers oriented in the in-plane direction of the facing surface where the fiber direction faces the first layer and in a direction at a predetermined angle with respect to the longitudinal direction. A second layer is formed by impregnating with a conductive resin (step S34). In the present embodiment, the in-plane direction of the facing surface in which the fiber direction faces the first layer coincides with the in-plane direction of the sheet. Specifically, the second layer is a +30 degree fiber layer, a +45 degree fiber layer, a +60 degree fiber layer, a 90 degree fiber layer, a −30 degree fiber layer, −45 depending on the orientation angle of the reinforcing fiber in the fiber direction. Degree fiber layer, -60 degree fiber layer and the like.

When the pultruded material 10 including the composite material base 30 is manufactured, in step S34, the orientation angle of the reinforcing fibers in the fiber direction is more than the second layer 34 (+45 degree fiber layer) included in the composite material base 30. Prepare one 60 degree fiber layer that is larger in the same plus or minus direction. When the pultruded material 10 including the composite material 40 is manufactured, in step S34, the orientation angle of the reinforcing fibers in the fiber direction is more than the second layer 44 (+45 degree fiber layer) included in the composite material 40. The fiber layer orientation angle of the reinforcing fibers is the same as that of the second layer 46 (−45 degree fiber layer) included in the base material 40 of the composite material, plus one +60 degree fiber layer having the same plus / minus direction. Prepare a large -60 degree fiber layer in the negative direction.

When the pultruded material 10 including the composite material 60 is manufactured, in step S34, the orientation of the reinforcing fibers in the fiber direction is more than that of the second layer 64 (−45 degree fiber layer) included in the composite material 60. Two -60 degree fiber layers having the same angle in the same plus / minus direction, the second layer 66 (90 degree fiber layer) included in the base material 60 of the composite material, and the orientation angle of the reinforcing fibers in the fiber direction are the same. One +90 degree fiber layer and a +60 degree fiber in which the orientation angle in the fiber direction of the reinforcing fiber is larger in the same plus / minus direction than the second layer 68 (+45 degree fiber layer) included in the base material 40 of the composite material Prepare two layers.

In the present embodiment, the first layer forming step S32 and the second layer forming step S34 are processed in this order. However, the present invention is not limited to this, and the second layer forming step S34 and the first layer forming step are performed. You may process in order of S32 and may process 1st layer formation process S32 and 2nd layer formation process S34 simultaneously.

Next, the first layer prepared in step S32 and the second layer prepared in step S34 are stacked to form a composite material base material 20 '(step S36).

When producing the pultruded material 10 including the composite material base 30, the 0-degree fiber layer prepared in step S <b> 32 so that the stacking order is the same as the composite material base 30 ′ shown in FIG. 9; The +60 degree fiber layer prepared in step S34 is laminated. When producing the pultruded material 10 including the composite material base 40, the 0-degree fiber layer prepared in step S32 so that the stacking order is the same as the composite material base 40 'shown in FIG. The +60 degree fiber layer and the -60 degree fiber layer prepared in step S34 are laminated.

When the pultruded material 10 including the composite material base 60 is manufactured, the four 0 degree fibers prepared in step S32 so that the stacking order is the same as the composite material base 60 'shown in FIG. And the two -60 degree fiber layers, one 90 degree fiber layer, and two +60 degree fiber layers prepared in step S34.

In a modified example of the pultruded material manufacturing method according to the present embodiment, in step S36, the layers are stacked so that the stacking order is the same as that of the composite material base 60 'shown in FIG. Therefore, the composite material base material 60 ′ has fiber direction angles 64θ, 66θ, 68θ of the reinforcing

fibers

The plurality of composite base materials 20 ′ formed in step S <b> 36 are deformed so as to have a predetermined shape in a plane orthogonal to the longitudinal direction, and are conveyed to the molding die 140 while being transported in the longitudinal direction. be introduced. Since subsequent steps S22 and S24 are the same as described above, their detailed description is omitted. Further, the heating layer for heating the thermosetting resin is the same as described above for the surface layer forming step of providing the surface layer 24 'on the outer surface in the Y direction or Z direction of the base material 20' of the composite material. Therefore, detailed description thereof will be omitted.

Since the modified example of the method for manufacturing a pultruded material according to the present embodiment has the above-described configuration, the same effects as those of the method for manufacturing the pultruded material according to the present embodiment can be obtained. That is, the modified example of the method for producing a pultruded material according to the present embodiment can produce a composite material base material and a pultruded material so that the fiber direction of the reinforcing fiber achieves the required angle. The performance of the base material of the composite material to be molded can be adjusted according to the required performance.

10 pultrusion molding material 20, 20 ′, 20a, 20a ′, 20b, 20b ′, 20c, 20c ′, 30, 30 ′, 40, 40 ′, 60, 60 ′ base material of composite material 20 ″, 20a ″ , 20b ″, 20c ″ Preform 22, 22 ′ Gap material 22 ″ Indirect substrate 24, 24 ′, 24a, 24a ′, 24b, 24b ′, 24c, 24c ′ Surface layer 24 ″, 24a ″ 24b ″, 24c ″, 32f, 32f ′, 34f, 34f ′, 42f, 42f ′, 44f, 44f ′, 46f, 46f ′, 62f, 62f ′, 64f, 64f ′, 66f, 66f ′, 68f , 68f 'Reinforcing fiber 32, 32', 42, 42 ', 62, 62' First layer 34, 34 ', 44, 44', 46, 46 ', 64, 64', 66, 66 ', 68, 68 ′ Second layer 34θ, 34θ ′, 44θ, 44θ ′, 46 , 46θ ′, 64θ, 64θ ′, 66θ, 66θ ′, 68θ, 68θ ′ Angle 100 Pulsating material manufacturing apparatus 110, 110a, 110b, 110c Fiber layer supply unit 112, 112a, 112b, 112c, 122, 132, 132a , 132b, 132c Resin pool 120 Gap base material supply unit 130, 130a, 130b, 130c Surface fiber layer supply unit 140 Mold D, D ′ arrow

Claims

A base material of a composite material extending in the longitudinal direction and impregnating a reinforcing fiber with a thermosetting resin,
A first layer in which the fiber direction of the reinforcing fibers is oriented along the longitudinal direction;
A second layer laminated on the first layer, wherein the fiber direction of the reinforcing fibers is oriented in the in-plane direction of the facing surface facing the first layer and in a direction at a predetermined angle with respect to the longitudinal direction; ,
Including
The base material for a composite material, wherein the predetermined angle is equal to or greater than the required angle, when an angle of the reinforcing fiber required for the composite material with respect to the longitudinal direction is a required angle.
A plurality of the first layers are provided,
The composite material substrate according to claim 1, wherein the second layer is provided between the first layers.
A plurality of the second layers are laminated,
3. The plurality of second layers, wherein the predetermined angle in a layer close to the first layer is smaller than the predetermined angle in a layer far from the first layer. A substrate of the composite material described.
The composite material substrate according to any one of claims 1 to 3, wherein the predetermined angle is closer to the required angle than before the pultrusion is performed. A pultrusion molding material characterized by containing.
5. The pultrusion material according to claim 4, further comprising a gap material disposed in a gap of the base material of the composite material in which the predetermined angle is closer to the required angle than before the pultrusion is performed. .
A method for producing a base material of a composite material extending in a longitudinal direction and impregnating a reinforcing fiber with a thermosetting resin,
A first layer preparation step of preparing a first layer in which the fiber direction of the reinforcing fibers is oriented along the longitudinal direction;
A second layer for preparing a second layer in which the fiber direction of the reinforcing fiber is oriented in the in-plane direction of the facing surface that faces the first layer and in a direction at a predetermined angle with respect to the longitudinal direction A preparation process;
A laminating step of laminating the first layer and the second layer;
Including
Production of a base material for a composite material, wherein the predetermined angle is equal to or greater than the required angle when the angle of the reinforcing fiber required for the composite material with respect to the longitudinal direction is a required angle Method.
In the first layer preparation step, a first fiber layer composed of the reinforcing fibers is prepared,
In the second layer preparation step, a second fiber layer composed of the reinforcing fibers is prepared,
In the lamination step, the first fiber layer and the second fiber layer are laminated,
The composite material substrate according to claim 6, further comprising an impregnation step of impregnating the first fiber layer and the second fiber layer with the thermosetting resin after the laminating step. Method.
In the first layer preparation step, the reinforcing fiber is impregnated with a thermosetting resin to form the first layer,
In the second layer preparing step, the reinforcing fiber is impregnated with a thermosetting resin to form the second layer,
The method for producing a base material for a composite material according to claim 6, wherein in the laminating step, the first layer and the second layer are laminated by impregnating a thermosetting resin.
In the first layer preparation step, a plurality of the first layers are prepared,
9. The method for producing a composite material substrate according to claim 6, wherein, in the stacking step, the second layer is stacked between the plurality of first layers. 10. .
In the second layer preparation step, a plurality of the second layers are formed,
In the stacking step, the plurality of second layers are stacked such that the predetermined angle in a layer close to the first layer is smaller than the predetermined angle in a layer far from the first layer. The method for producing a composite material substrate according to any one of claims 6 to 9, wherein the composite material is a substrate.
A drawing step of forming a composite material molded body by pultruding a plurality of composite material base materials manufactured by the composite material base material manufacturing method according to any one of claims 6 to 10. A method for producing a pultrusion material.
12. The method for producing a pultruded material according to claim 11, further comprising a gap material forming step of arranging a gap material in a gap between the pultruded composite material base materials.