JP6939118B2 - Composite material molding method and molding equipment - Google Patents

Description

The present invention relates to a method and an apparatus for molding a composite material.

In recent years, composite materials, which are molded products manufactured by RTM (Resin Transfer Molding), have been applied to automobile parts. In the RTM molding method, a composite material is formed by impregnating a reinforcing base material with resin by injecting resin into a mold (fixed mold and movable mold) in which a reinforcing base material containing fibers is arranged. (See, for example, Patent Document 1).

On the other hand, in order to shorten the cycle time during RTM molding, it is necessary to increase the resin injection amount per unit time and shorten the resin injection time.

Japanese Unexamined Patent Publication No. 2010-221642

However, when the resin injection amount is increased, the resin injection pressure increases. Therefore, in particular, in the vicinity of the resin injection port, the fibers constituting the reinforcing base material may move due to the flow of the resin, and the orientation of the fibers may be disturbed. Disordered fiber orientation causes a decrease in the strength and rigidity of the molded product and impairs the appearance quality, which is not preferable.

The present invention has been made to solve the problems associated with the above-mentioned prior art, and is a composite that can further increase the amount of resin injected per unit time while suppressing the misalignment of the fibers constituting the reinforcing base material. It is an object of the present invention to provide a molding method and a molding apparatus for a material.

The uniform phase of the present invention for achieving the above object is a molding method in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material, and a movable cavity surface and the reinforcing base material are formed. A sheet material having a plurality of through holes smaller than the injection port of the resin arranged on the cavity surface and arranged so as to cover at least the injection port is located between the plurality of through holes. The resin injected from the injection port passes through the plurality of through holes of the sheet material and flows into the reinforced base material. A part of the resin injected from the injection port flows through a plurality of groove-shaped bypass flow paths extending in a direction away from the injection port in the sheet material .

Another uniform phase of the present invention for achieving the above object is a molding apparatus in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material, and a movable cavity surface and the reinforcing base material are formed. With a sheet material which is arranged between and has a plurality of through holes smaller than the injection port of the resin arranged on the cavity surface, and the plurality of through holes are arranged so as to cover at least the injection port. It has a control device configured to inject the resin from the injection port, pass through the plurality of through holes, and flow into the reinforced base material. The sheet material further has a plurality of groove-shaped bypass flow paths extending in a direction away from the injection port.

According to the uniform phase and another uniform phase of the present invention, the resin is rectified as it passes through the through holes and flows in from a direction substantially perpendicular to the reinforced substrate. Therefore, even if the injection pressure of the resin is increased by increasing the injection amount of the resin, the flow of the injected resin prevents the fibers constituting the reinforcing base material from moving, and the disorder of the orientation of the fibers is suppressed. NS. Therefore, it is possible to provide a molding method and a molding apparatus for a composite material capable of further increasing the resin injection amount per unit time while suppressing the orientation disorder of the fibers constituting the reinforcing base material.

Still other objects, features and properties of the invention will become apparent by reference to the preferred embodiments exemplified in the following description and accompanying drawings.

It is the schematic for demonstrating the molding apparatus which concerns on embodiment of this invention. It is a top view for demonstrating the sheet material shown in FIG. It is sectional drawing for demonstrating the through hole shown in FIG. It is a flowchart for demonstrating the molding method which concerns on embodiment of this invention. It is the schematic for demonstrating the base material arrangement process shown in FIG. It is the schematic for demonstrating the mold clamping process shown in FIG. It is a flowchart for demonstrating the modification 1 which concerns on embodiment of this invention. It is a top view for demonstrating the modification 2 which concerns on embodiment of this invention. It is sectional drawing for demonstrating the modification 2 which concerns on embodiment of this invention. It is the schematic for demonstrating the modification 3 which concerns on embodiment of this invention. It is a perspective view for demonstrating the molded article (composite material) which concerns on modification 3. FIG. It is sectional drawing for demonstrating the modification 4 which concerns on embodiment of this invention. It is a perspective view for demonstrating the modification 4 which concerns on embodiment of this invention. It is the schematic for demonstrating the flow state of the injection resin which concerns on modification 3. It is a table for demonstrating the evaluation result of the substrate fiber orientation and the injection resin impregnation property in Examples 1-5 and Comparative Examples 1-6.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The dimensional ratios in the drawings are exaggerated for convenience of explanation and may differ from the actual ratios.

FIG. 1 is a schematic view for explaining a molding apparatus according to an embodiment of the present invention, FIG. 2 is a plan view for explaining a sheet material shown in FIG. 1, and FIG. 3 is shown in FIG. It is sectional drawing for demonstrating the through hole.

The molding apparatus 100 according to the first embodiment of the present invention is used for impregnating a reinforcing base material containing fibers with an injection resin to form a composite material, and as shown in FIG. 1, the fixed mold 110, It has a movable type 120, a drive device 130, a sheet material 140, a peripheral seal member 180, a resin injection device 185, a decompression device 190, and a control device 195.

The fixed type 110 has a cavity surface 112 on which the preform 10 is placed. Preform 10 is a reinforcing base material (containing fibers) composed of sheet-shaped fibers, and is preformed (formed) in advance using a binder. If necessary, the preform 10 can also be applied with a configuration in which a plurality of reinforcing base materials are laminated via an adhesive.

The movable type 120 is configured so as to be close to and separated from the fixed type 110, and has a cavity surface 122. The cavity surface 122 has a resin injection port 124 and a suction port 128. The cavity surface 122 of the movable type 120 and the cavity surface 112 of the fixed type 110 collectively define the shape of the composite material to be manufactured.

The drive device 130 has, for example, an electric cylinder or a hydraulic cylinder, and is configured to drive the movable type 120 and change the position of the movable type 120 with respect to the fixed type 110.

The sheet material 140 is arranged between the cavity surface 122 of the movable type 120 and the preform 10, and has a plurality of through holes 150 smaller than the resin injection port 124 as shown in FIG. The through hole 150 is arranged so as to cover at least the resin injection port 124 (positioned so as to face the resin injection port 124).

The sheet material 140 is not limited to the form arranged so as to cover the entire surface of the preform 10 facing the cavity surface 122, and is arranged so as to cover only the portion facing the resin injection port 124 and its vicinity, for example. It is also possible. It is also possible to make the sheet material 140 rectangular or circular. The thickness of the sheet material 140 is not particularly limited, but is preferably less than the thickness of the molded product. The size, arrangement density, and arrangement configuration of the through hole 150 are not particularly limited and can be appropriately set.

The peripheral edge sealing member 180 is arranged so as to surround the cavity surface 122 of the movable mold 120, and is configured to seal between the fixed mold 110 and the movable mold 120 at the time of mold clamping. The peripheral edge sealing member 180 is formed of, for example, an elastic material such as rubber.

The resin injection device 185 holds the injection resin 20 and communicates with the resin injection port 124 of the cavity surface 122 of the movable type 120. The injection resin 20 is a matrix resin of a molded product.

The decompression device 190 has, for example, a vacuum pump and communicates with the suction port 128 of the cavity surface 122 of the movable type 120.

The control device 195 has a control circuit 197 composed of a microprocessor and the like that controls each part and performs various arithmetic processes according to a program, and is connected to a drive device 130, a resin injection device 185, and a decompression device 190. .. Each function of the molding device 100 is exhibited by the control device 195 executing a program corresponding to the function.

For example, the control device 195 controls the position of the movable type 120 and the resin injection by the resin injection device 185. More specifically, the control device 195 injects the injection resin 20 from the resin injection port 124 after the movable mold 120 is moved and molded, and the through hole 150 of the sheet material 140 is formed as shown in FIG. It is configured to pass through and flow into the preform 10.

Next, the preform, the injection resin, and the sheet material will be described.

The preform (reinforced base material) is, for example, a carbon fiber, a glass fiber, an aramid fiber, a polyamide fiber, a polypropylene fiber, or an acrylic fiber, and has a woven structure in which the fibers are combined vertically and horizontally. The laminating adhesive applied when a plurality of reinforced base materials are laminated to form the preform 10 is, for example, a thermoplastic resin or a thermosetting resin. The thermoplastic resin is a polyolefin resin, a styrene resin, a polyamide resin, a polyurethane resin, or the like. The thermosetting resin is an epoxy resin, a phenol resin, an unsaturated polyester resin, or the like.

The injection resin (matrix resin) is, for example, a two-component type epoxy resin, and is used by mixing a main agent and a curing agent. The main agent is a bisphenol A type epoxy resin (prepolymer), and the curing agent is an amine type. The injection resin is not limited to the above-mentioned form, and other thermosetting resins such as epoxy resin and phenol resin can be applied. Further, as the injection resin, a thermoplastic resin can be applied if necessary. Furthermore, the injection resin can also contain a mold release material.

The material of the sheet material is, for example, the same resin as the injection resin, a resin having compatibility with the injection resin, a resin that becomes a part of the injection resin, a resin having good adhesion to the injection resin, and an injection resin. It is a material that is incompatible with and does not integrate with each other.

The resin having compatibility with the injection resin is, for example, a thermoplastic epoxy resin when the injection resin is an epoxy resin. In this case, the sheet material 140 melts and mixes with the injection resin 20 during the resin injection, so that the impregnation property of the injection resin 20 into the fibers of the preform 10 is improved, and the sheet material is peeled off from the molded product ( Delamination) can be suppressed.

The resin that becomes a part of the injection resin is, for example, the same material as the modified epoxy resin or the binder for shaping the preform when the injection resin is an epoxy resin. In this case, it is possible to suppress peeling (delamination) of the sheet material from the molded product.

The resin having good adhesion to the injection resin is, for example, a thermosetting epoxy resin when the injection resin is an epoxy resin. In this case, it is possible to suppress peeling (delamination) of the sheet material from the molded product, as in the case of the resin that is a part of the injection resin.

The material that is incompatible with the injection resin and is not integrated is, for example, a metal, and in this case, it is possible to obtain a molded product in which a layer composed of a sheet material is embedded. That is, the molded product includes a surface layer made of an injection resin that did not migrate to the preform layer (does not penetrate the sheet material), an intermediate layer made of the sheet material, and a preform layer impregnated with the injection resin. Will have.

Next, the molding method to which the molding apparatus 100 is applied will be described.

FIG. 4 is a flowchart for explaining a molding method according to an embodiment of the present invention, FIG. 5 is a schematic view for explaining a base material arranging step shown in FIG. 4, and FIG. 6 is shown in FIG. It is the schematic for demonstrating the mold clamping process. In FIGS. 5 and 6, the drive device 130, the resin injection device 185, the decompression device 190, and the control device 195 are omitted.

This molding method is used for molding a composite material 30 by impregnating a preform 10 with a resin 20 by utilizing a compression RTM (Resin Transfer Molding), and as shown in FIG. 4, a base material. It generally has a placement step, a mold clamping step, a resin injection step, a compression step and a mold opening step.

In the base material arranging step, as shown in FIG. 5, the preform 10 and the sheet material 140 are arranged on the cavity surface 112 of the fixed mold 110 in a state where the movable mold 120 is separated from the fixed mold 110. At this time, the sheet material 140 is arranged so as to cover the preform 10 and face the cavity surface 122 of the movable type 120. The sheet material 140 is not limited to the form in which the sheet material 140 is arranged independently, and it is also possible to use the preform 10 in which the sheet material 140 is laminated in advance. Lamination of the sheet material 140 on the preform 10 can be carried out, for example, when the preform 10 is produced.

In the mold clamping step, the drive device is controlled and the position of the movable mold 120 with respect to the fixed mold 110 is changed as shown in FIG. The movable mold 120 moves close to the fixed mold 110 and is molded. As a result, a closed space is formed between the fixed type 110 and the movable type 120. The distance D (see FIG. 6) between the fixed mold 110 and the movable mold 120 is less than the sum of the apparent thickness of the preform 10 and the thickness of the sheet material 140 in the atmosphere, and is a preset molded product. It is set to a predetermined value larger than the thickness of (composite material).

In the resin injection step, the decompression device and the resin injection device are controlled. That is, when the gas is sucked from the closed space formed between the fixed mold 110 and the movable mold 120 and reaches a predetermined degree of vacuum, the injection resin 20 is charged with the resin injection port 124 of the cavity surface 122 of the movable mold 120. It is injected from the sheet material 140, passes through the through hole 150 of the sheet material 140, and flows into the preform 10 (see FIG. 3).

At this time, the injection resin 20 is rectified when passing through the through hole 150, and flows in from a direction substantially perpendicular to the preform 10. Therefore, even if the injection pressure of the injection resin 20 is increased by increasing the resin injection amount, the flow of the injected resin 20 prevents the fibers constituting the preform 10 from moving, and the orientation of the fibers is prevented. Disturbance is suppressed. For example, when the injection resin is an epoxy resin and the sheet material 140 is a thermoplastic epoxy resin, the sheet material 140 melts and mixes with the injection resin 20 during resin injection, so that the fibers of the preform 10 are treated. The impregnation property of the injection resin 20 is improved.

In the compression step, after the injection of the injection resin 20 is completed, the driving device is controlled and the movable mold 120 is moved so as to be closer to the fixed mold 110. As a result, the distance D (see FIG. 6) between the fixed mold 110 and the movable mold 120 is narrowed to the preset thickness of the molded product (composite material) with respect to the preform 10 impregnated with the injection resin 20. High pressure is applied.

Then, this state is maintained until the curing of the injection resin 20 impregnated in the preform 10 (molding of the composite material 30) is completed. When the injection resin 20 is a thermosetting resin, the temperature of the fixed type 110 and / or the movable type 120 is raised by a heating device such as a heater.

In the mold opening step, after stopping the operation of the decompression device, the drive device is controlled and the position of the movable mold 120 with respect to the fixed mold 110 is changed. As a result, the movable mold 120 moves away from the fixed mold 110 and is opened.

Next, a modification 1 will be described.

FIG. 7 is a flowchart for explaining a modification 1 according to the embodiment of the present invention.

This molding method is not limited to the form using the compressed RTM, and can be applied to, for example, an RTM having no compression step as shown in FIG. 7.

In this case, in the mold clamping step, the distance D (see FIG. 6) between the fixed mold 110 and the movable mold 120 is set so as to match the preset thickness of the molded product, and in the resin injection step, the distance D is set. After the injection of the injection resin 20 is completed, this state is maintained until the curing of the injection resin 20 impregnated in the preform 10 (molding of the composite material 30) is completed, and then the mold opening step is carried out.

Next, a modification 2 will be described.

8 and 9 are a plan view and a cross-sectional view for explaining a modification 2 according to the embodiment of the present invention.

The sheet material 140 is not limited to the form having only the through hole 150, and may further have a plurality of bypass flow paths 152 as shown in FIGS. 8 and 9.

The bypass flow path 152 has a groove-shaped cross section and extends in a direction away from the resin injection port 124, and the sheet material 140 has a corrugated shape. Further, the bypass flow path 152 has an intersection 154. The intersection 154 faces the central portion of the resin injection port 124. That is, the bypass flow path 152 extends radially from the portion 154 facing the central portion of the resin injection port 124.

Since the flow resistance when the injection resin 20 flows through the groove-shaped bypass flow path 152 is small, the injection resin 20 can be easily reached at a portion separated from the resin injection port 124 (acceleration of deployment along the extension direction of the sheet material). It is possible to let). Further, since the bypass flow path 152 extends radially from the portion facing the central portion of the resin injection port 124, the injection resin 20 can be efficiently reached at the portion separated from the resin injection port 124. be.

The number, width, and depth of the bypass flow paths 152 are not particularly limited and can be appropriately set. The arrangement of the through holes 150 can be set so as not to overlap with the bypass flow path 152, if necessary.

Next, a modification 3 will be described.

FIG. 10 is a schematic view for explaining a modified example 3 according to the embodiment of the present invention, and FIG. 11 is a perspective view for explaining a molded product (composite material) according to the modified example 3. In FIG. 10, the drive device 130, the resin injection device 185, the decompression device 190, and the control device 195 are omitted.

The shape of the molded product (composite material) is not limited to the above-mentioned form, and for example, the molded product 30 having a hat-shaped cross section shown in FIG. 11 can be applied.

In this case, for example, as shown in FIG. 10, the cavity surface 112 of the fixed mold 110 has a substantially convex portion 113, and the cavity surface 122 of the movable mold 120 has a substantially concave portion 123 portion, and is integrally formed. This corresponds to the external shape of the molded product 30.

On the other hand, since the molded product 30 has a pair of side wall portions 32 that are separated from each other and a connecting wall portion 34 that connects the ends of the side wall portions 32 to each other, the preform 10 and the molded product 30 are formed. The sheet material 140 has a hat-shaped cross section. That is, the preform 10 has a pair of side wall portions 12 that are separated from each other, and a connecting wall portion 14 that connects the ends of the side wall portions 12 to each other, and the sheet material 140 has a pair of separated side wall portions 14. It will have a side wall portion 142 and a connecting wall portion 144 that connects the ends of the side wall portions 142 to each other.

Next, a modification 4 will be described.

FIG. 12 is a cross-sectional view for explaining the modified example 4 according to the embodiment of the present invention, FIG. 13 is a perspective view for explaining the modified example 4 according to the embodiment of the present invention, and FIG. 14 is a perspective view for explaining the modified example 4. It is the schematic for demonstrating the flow state of the injection resin which concerns on modification 3. FIG. In addition, in FIGS. 12 and 14, the drive device 130, the resin injection device 185, the decompression device 190, and the control device 195 are omitted.

For example, when the molded product 30 has a hat-shaped cross section, as shown in FIG. 14, the flow state of the injection resin is steep in the vicinity of the resin injection port 124 of the cavity surface 122 of the movable type 120, and the sheet material 140. It becomes gentle toward the end of the connecting wall portion 144, and becomes steep at the end of the side wall portion 142 connected to the end of the connecting wall portion 144, and becomes steep at the other end of the side wall portion 142 (lower in the figure). It becomes gentle toward.

In the region where the flow state of the injected resin is steep and its vicinity, there is a possibility that the orientation of the fibers constituting the reinforcing base material may be disturbed. Therefore, the sheet material 140 can be arranged only in the region where the flow state of the injected resin is steep and in the vicinity thereof. That is, as shown in FIG. 12, the sheet material 140 can also be composed of the central sheet material 164 and the side sheet material 162 that are separated from each other.

The central sheet material 164 is arranged on the connecting wall portion 14 of the preform 10 and is positioned so as to face the resin injection port 124 of the cavity surface 122 of the movable type 120. The central sheet material 164 has a through hole 150 and a groove-shaped bypass flow path 152 in order to suppress the disorder of fiber orientation (see FIG. 8).
On the other hand, the side sheet material 162 is arranged on the side wall portion 12 of the preform 10. The side sheet material 162 is corrugated and has a through hole 166 and a groove-shaped bypass flow path 168, as shown in FIG. 13, in order to suppress the misalignment of the fibers.

If necessary, the central sheet material 164 and the side sheet material 162 can be integrated. It is also possible to extend the side sheet material 162 to the end of the preform 10. Further, it is possible to omit the groove-shaped bypass flow path 168.

Next, the performance comparison results of Examples 1 to 5 and Comparative Examples 1 to 6 will be described.

FIG. 15 is a table for explaining the evaluation results of the substrate fiber orientation and the injection resin impregnation property in Examples 1 to 5 and Comparative Examples 1 to 6.

Examples 1 to 5 are different in terms of molding method, resin injection amount, sheet material material and sheet material composition. The molding methods are RTM and compression RTM. The resin injection amount is in the range of 50 to 120 [cc / s]. The sheet material is a thermoplastic resin and a thermosetting resin. The sheet material configuration is a combination of only the through hole and the through hole and the bypass flow path.

Comparative Examples 1 to 6 are different in terms of molding method and resin injection amount. The resin injection amount is in the range of 80 to 150 [cc / s]. The preforms and injection resins applied to Examples 1 to 5 and Comparative Examples 1 to 3 are carbon fibers and thermoplastic resins.

The performance of the substrate fiber orientation is evaluated visually. In the molded product, A is when there is no fiber orientation disorder (within the allowable range), B is when there is some fiber orientation disorder, and fiber. The case where the orientation disorder of the above is remarkably present is indicated by C. In addition, the performance evaluation of the injection resin impregnation property is also performed visually, and when the ratio of the base fiber and the injection resin is uniform (within the allowable range) in the molded product, A, the base fiber In B, when there are some parts where the ratio of the base fiber and the injection resin is non-uniform, in C, when there are many parts where the ratio of the base fiber and the injection resin is non-uniform, there are dry spots, etc. Shown.

As shown in FIG. 15, none of Comparative Examples 1 to 6 had a performance evaluation of base fiber orientation and injection resin impregnation property of A even when the molding method and the resin injection amount were changed.

On the other hand, in Examples 1 to 5, the performance evaluation of the substrate fiber orientation and the injection resin impregnation property was A regardless of the molding method, the resin injection amount, the sheet material material, and the sheet material composition, and Comparative Examples 1 to 5 Unlike the case of No. 6, good results were shown.

As described above, in the present embodiment, the injection resin flowing into the preform (reinforced base material) located near the resin injection port is rectified when passing through the through hole, and is substantially relative to the preform. It flows in from the vertical direction. Therefore, even if the injection pressure of the injected resin is increased by increasing the resin injection amount, the flow of the injected resin prevents the fibers constituting the preform from moving, and the misorientation of the fibers is suppressed. Will be done. Therefore, it is possible to provide a method and a molding apparatus for a composite material capable of further increasing the resin injection amount per unit time while suppressing the misalignment of the fibers constituting the preform.

When the sheet material further has a plurality of groove-shaped bypass flow paths extending in a direction away from the resin injection port, the flow resistance when the injection resin flows through the bypass flow path is small, so that the portion separated from the resin injection port. It is possible to easily reach the injection resin (accelerate the development in the direction along the sheet material).

When the groove-shaped bypass flow path extends radially from the portion facing the central portion of the resin injection port, the injection resin can be efficiently reached at the portion separated from the resin injection port.

When the sheet material is composed of an injection resin having compatibility with the injection resin, the sheet material gradually melts into the injection resin during the resin injection, so that the impregnation property of the injection resin into the preform fibers is improved. In addition, it is possible to suppress peeling (delamination) of the sheet material from the molded product.

When the sheet material is composed of a resin that becomes a part of the injection resin, it is possible to suppress peeling (delamination) of the sheet material from the molded product.

When the sheet material is composed of a material that is incompatible with the injection resin and does not integrate with the injection resin, it is possible to obtain a molded product in which a layer composed of the sheet material is embedded.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. For example, modifications 1 to 4 can be combined as appropriate. Further, the shape of the molded product (composite material) to be molded is not limited to the above-mentioned form.

10 Preform (reinforced base material),
Preform impregnated with 10A injection resin,
12 side wall,
14 Connecting wall,
20 injection resin,
30 Molded product (composite material),
32 side wall,
34 Connecting wall,
100 molding equipment,
110 fixed type,
112 cavity surface,
113 Approximately convex part,
120 movable type,
122 Cavity surface,
123 Approximately concave part,
124 Resin inlet,
128 Inhalation port,
130 drive unit,
140 sheet material,
142 side wall,
144 connecting wall,
150 through hole,
152 Grooved bypass flow path,
154 Crossing (the part facing the center of the inlet),
162 side sheet material,
164 Central sheet material,
166 through hole,
168 Grooved bypass flow path,
180 Peripheral seal member,
185 resin injection device,
190 decompressor,
195 controller,
197 control circuit,
D Distance between fixed type and movable type.

Claims (16)

A molding method in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material.
After the reinforced base material is arranged between the fixed mold and the movable mold, the mold is molded, and the resin is injected from the resin injection port arranged on the cavity surface of the movable mold.
A sheet material having a plurality of through holes smaller than the injection port and having the plurality of through holes arranged so as to cover at least the injection port is located between the cavity surface and the reinforcing base material. And
The injected resin passes through the plurality of through holes of the sheet material and flows into the reinforced base material .
A molding method in which a part of the resin injected from the injection port flows through a plurality of groove-shaped bypass flow paths extending in a direction away from the injection port in the sheet material. A molding method in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material.
After the reinforced base material is arranged between the fixed mold and the movable mold, the mold is molded, and the resin is injected from the resin injection port arranged on the cavity surface of the movable mold.
A sheet material having a plurality of through holes smaller than the injection port and having the plurality of through holes arranged so as to cover at least the injection port is located between the cavity surface and the reinforcing base material. And
The injected resin passes through the plurality of through holes of the sheet material and flows into the reinforced base material .
A part of the resin injected from the injection port is relative to the central part of the injection port through a plurality of groove-shaped bypass flow paths extending radially from a portion facing the central part of the injection port. A molding method that flows radially from the part to be injected. The molding method according to claim 1 or 2 , wherein the sheet material is composed of a resin having compatibility with the injected resin. The molding method according to claim 1 or 2 , wherein the sheet material is composed of a resin that is integrated with the injected resin. The molding method according to claim 1 or 2 , wherein the sheet material is made of a material that is incompatible with the injected resin and does not integrate with the resin. A molding method in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material.
After the reinforced base material is arranged between the fixed mold and the movable mold, the mold is molded, and the resin is injected from the resin injection port arranged on the cavity surface of the movable mold.
A sheet material having a plurality of through holes smaller than the injection port and having the plurality of through holes arranged so as to cover at least the injection port is located between the cavity surface and the reinforcing base material. And
The sheet material is composed of a resin having compatibility with the injected resin.
A molding method in which the injected resin passes through the plurality of through holes of the sheet material and flows into the reinforced base material. A molding method in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material.
After the reinforced base material is arranged between the fixed mold and the movable mold, the mold is molded, and the resin is injected from the resin injection port arranged on the cavity surface of the movable mold.
A sheet material having a plurality of through holes smaller than the injection port and having the plurality of through holes arranged so as to cover at least the injection port is located between the cavity surface and the reinforcing base material. And
The sheet material is composed of a resin that is integrated with the injected resin.
A molding method in which the injected resin passes through the plurality of through holes of the sheet material and flows into the reinforced base material. A molding method in which a reinforcing base material containing fibers is impregnated with a resin to form a composite material.
After the reinforced base material is arranged between the fixed mold and the movable mold, the mold is molded, and the resin is injected from the resin injection port arranged on the cavity surface of the movable mold.
A sheet material having a plurality of through holes smaller than the injection port and having the plurality of through holes arranged so as to cover at least the injection port is located between the cavity surface and the reinforcing base material. And
The sheet material is composed of a material that is incompatible with the injected resin and does not integrate with the resin.
A molding method in which the injected resin passes through the plurality of through holes of the sheet material and flows into the reinforced base material. A molding device that impregnates a reinforced base material containing fibers with a resin to form a composite material.
The fixed type on which the reinforced base material is placed and
A movable type that has a cavity surface on which the resin injection port is arranged and is configured to be close to and separated from the fixed type.
A sheet material arranged between the cavity surface and the reinforced base material and having a plurality of through holes smaller than the injection port,
A resin injection device for injecting the resin via the injection port,
It has a movable position and a control device for controlling resin injection by the resin injection device.
The sheet material further has a plurality of grooved bypass flow paths extending in a direction away from the injection port.
The plurality of through holes are arranged so as to cover at least the injection port.
The control device is formed so as to move the movable mold, mold the mold, inject the resin from the injection port, pass through the plurality of through holes, and flow into the reinforced base material. Device. A molding device that impregnates a reinforced base material containing fibers with a resin to form a composite material.
The fixed type on which the reinforced base material is placed and
A movable type that has a cavity surface on which the resin injection port is arranged and is configured to be close to and separated from the fixed type.
A sheet material arranged between the cavity surface and the reinforced base material and having a plurality of through holes smaller than the injection port,
A resin injection device for injecting the resin via the injection port,
It has a movable position and a control device for controlling resin injection by the resin injection device.
The sheet material further has a plurality of groove-shaped bypass flow paths extending radially from a portion facing the central portion of the injection port.
The plurality of through holes are arranged so as to cover at least the injection port.
The control device is formed so as to move the movable mold, mold the mold, inject the resin from the injection port, pass through the plurality of through holes, and flow into the reinforced base material. Device. The molding apparatus according to claim 9 or 10 , wherein the sheet material is composed of a resin having compatibility with the injected resin. The molding apparatus according to claim 9 or 10 , wherein the sheet material is composed of a resin integrated with the injected resin. The molding apparatus according to claim 9 or 10 , wherein the sheet material is made of a material that is incompatible with the injected resin and does not integrate with the resin. A molding device that impregnates a reinforced base material containing fibers with a resin to form a composite material.
The fixed type on which the reinforced base material is placed and
A movable type that has a cavity surface on which the resin injection port is arranged and is configured to be close to and separated from the fixed type.
A sheet material arranged between the cavity surface and the reinforced base material and having a plurality of through holes smaller than the injection port,
A resin injection device for injecting the resin via the injection port,
It has a movable position and a control device for controlling resin injection by the resin injection device.
The sheet material is composed of a resin having compatibility with the injected resin.
The plurality of through holes are arranged so as to cover at least the injection port.
The control device is formed so as to move the movable mold, mold the mold, inject the resin from the injection port, pass through the plurality of through holes, and flow into the reinforced base material. Device. A molding device that impregnates a reinforced base material containing fibers with a resin to form a composite material.
The fixed type on which the reinforced base material is placed and
A movable type that has a cavity surface on which the resin injection port is arranged and is configured to be close to and separated from the fixed type.
A sheet material arranged between the cavity surface and the reinforced base material and having a plurality of through holes smaller than the injection port,
A resin injection device for injecting the resin via the injection port,
It has a movable position and a control device for controlling resin injection by the resin injection device.
The sheet material is composed of a resin that is integrated with the injected resin.
The plurality of through holes are arranged so as to cover at least the injection port.
The control device is formed so as to move the movable mold, mold the mold, inject the resin from the injection port, pass through the plurality of through holes, and flow into the reinforced base material. Device. A molding device that impregnates a reinforced base material containing fibers with a resin to form a composite material.
The fixed type on which the reinforced base material is placed and
A movable type that has a cavity surface on which the resin injection port is arranged and is configured to be close to and separated from the fixed type.
A sheet material arranged between the cavity surface and the reinforced base material and having a plurality of through holes smaller than the injection port,
A resin injection device for injecting the resin via the injection port,
It has a movable position and a control device for controlling resin injection by the resin injection device.
The sheet material is composed of a material that is incompatible with the injected resin and does not integrate with the resin.
The plurality of through holes are arranged so as to cover at least the injection port.
The control device is formed so as to move the movable mold, mold the mold, inject the resin from the injection port, pass through the plurality of through holes, and flow into the reinforced base material. Device.

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