Mitsubishi Heavy Industries Limited

Mitsubishi Aircraft Corporation

Kazuaki Kishimoto

Shunichi Morishima

Masayuki Yamashita

Yukio Takeuchi

Toshio Kozasa

Masatake Hatano

Hitoshi Ojika

Toshio Abe

Takashi Ishida

Kiyoka Takagi

Takayuki Koyama

Yuichiro Kamino

Nobuyuki Kamihara

Koichi Saito

Kouichi Saito

Hiromichi Akiyama

Akihisa Okuda

Hideki Horizono

Tetsuya Kato

Akira Ikada

Katsuya Yoshino

Masahiko Matsuhashi

Masahiro Shinya

Shinya Suzukake

A pultrusion material serves as a composite material having a reinforced part that is a part reinforced against a load acting in a load direction. The reinforced part includes: a core material that comprises bundled reinforcing fibers and that is provided so as to extend along the load direction; and a cover section obtained by covering the circumference of the core material with a fiber sheet. The fiber direction of the reinforcing fibers in the core material is oriented along the load direction.

Composite material, pultrusion device, and pultrusion method

Provided are a method and a device for producing a pultruded material that improve the homogeneity of a thermosetting resin. The device for producing a pultruded material comprises a first opening section, a second opening section, a closing section, a tension-applying section, an impregnating section, and a mold. The first opening section and the second opening section open a bundle of reinforcing fibers and thereby obtain a bundle of reinforcing fibers. The closing section closes the bundle of opened reinforcing fibers and thereby obtains a bundle of reinforcing fibers. The tension-applying section applies tension along the direction in which the reinforcing fibers extend to the bundle of reinforcing fibers that pass through the closing section. The impregnating section impregnates the bundle of reinforcing fibers with a thermosetting resin. The mold pultrudes the bundle of reinforcing fibers that have been impregnated with the thermosetting resin.

Method and device for producing pultruded material

A joined member assembly method includes: a step in which a substrate is inserted in a gap between a superposed first component and a second component, said substrate being configured from a multilayer fabric that is capable of expanding as a result of heating and that is flexible after expansion and a reinforcing material woven into the multilayer fabric; a step in which the substrate is heated and made to expand in the thickness direction; a step in which the gap is filled with a resin and the substrate is impregnated with the resin; and a step in which the resin is cured. A step in which a seam is created by machining in accordance with a measured gap shape is omitted.

Joined member assembly method and joined member

A device for producing a pultruded article is provided with: a mold in which an intermediate molded article comprising reinforcing fibers impregnated with a thermosetting resin is heated and hardened; and a pultrusion device that causes a pultruded article generated by heating and hardening the intermediate molded article in the mold to be pultruded from the mold. The mold comprises a pressing member that is elastically deformable and that presses the intermediate molded article.

Device and method for producing pultruded article

This pultrusion material that is a composite material member comprises: a plurality of fiber sheets that extend along a lengthwise direction; and a gap material that is provided to a gap formed by the plurality of fiber sheets, wherein the gap material has a gap fiber sheet including reinforcement fibers that are oriented in a different fiber direction than the lengthwise direction, and has gap reinforcement fibers that are oriented in the same fiber direction as the lengthwise direction. Additionally, the gap reinforcement fibers are provided evenly distributed in a cross-section of the gap material, said cross-section being perpendicular to the lengthwise direction.

Composite material member, gap material, pultrusion device, and pultrusion method

Provided are: a fiber-containing material which has improved strength in an out-of-plane direction without a decrease in strength in an in-plane direction; a method for inserting out-of-plane reinforcement threads; and a method for producing the fiber-containing material. The fiber-containing material contains a base material and out-of-plane reinforcement threads. The base material contains reinforcement fibers extending in a direction along a plane. The out-of-plane reinforcement threads are formed in the base material so as to extend in a direction intersecting the direction along the plane.

Method for inserting out-of-plane reinforcement threads and method for producing fiber-containing material

A method for producing a pultruded article includes: a step in which an activation sheet having a sliding surface capable of sliding with the inner surface of a mold is arranged on the surface of an intermediate molded article comprising reinforcing fibers that are impregnated with a thermosetting resin and the intermediate molded article and the activation sheet are introduced into a mold together; and a step in which a pultruded article generated by heating and hardening the intermediate molded article in the mold is pultruded together with the activation sheet from the mold.

Production method for a pultruded article

This device for producing a pultrusion molded article is provided with: a mold member that heats and cures an intermediate molded article as a result of the mold member contacting an intermediate molded article in which reinforcing fibers are impregnated with a thermosetting resin; a pultrusion device for extracting, in the pultruding direction, the pultrusion molded article formed by heating and curing the intermediate molded article; and a moving device for moving the mold member in the pultruding direction in synchronization with the pultrusion device.

Production device and production method for pultrusion molded article

A core () and a bag () are provided which are used to shape an FRP structure (). The bag () has a core bag section () which covers the outer circumference of the core (), and a coverture bag section () which covers a plurality of fiber components ().

FRP shaping jig and method of shaping FRP structure

The present invention aims to sufficiently impregnate each layer of a fiber substrate group composed of fiber substrates, which are used for fiber-reinforced resin molding by a resin injection method, with a resin. To successively stack a plurality of fiber substrates, each of which has arrayed fiber bundles and is a material composing a fiber-reinforced resin along with a resin, with their fiber bundles oriented in the same direction, the plurality of fiber substrates are integrated in a state where border zones between the fiber bundles adjacent to each other in an array direction are aligned with one another among the fiber substrates.

Fiber substrate stacking method, manufacturing method of roll of fiber substrate group, fiber substrate group, and aircraft

This structure is provided with a first composite material, a second composite materialjoined to the first composite materialby a film adhesiveprovided between the first composite materialand the second composite material, and a corner fillet partprovided on a corner partformed by the first composite materialand the second composite material. The shape of the corner fillet partis a design shape P designed in advance, and the corner fillet partis formed by curing the film adhesiveafter arranging the film adhesiveon the corner partso as to fit into the design shape P.

Composite structure and method for molding composite structure

Provided is a joint and an aircraft structure wherein it is possible to position a member relative to a preform with high accuracy. A groove into which a plate member () is inserted is formed in a pi-shaped joint () provided on the preform (), and the preform () and the plate member () are connected by being bonded. Moreover, a fitting shape (A-) into which the plate member () is fitted is formed on the pi-shaped joint () on the whole groove bottom face. Additionally, a fitting shape (A-) into which the plate member () is fitted is formed on a portion of the groove bottom face. Furthermore, fitting shapes (B-B-), into which the groove bottom face that is formed on the pi-shaped joint () is fitted, are formed on the surface of the plate material () that is fitted with the pi-shaped joint ().

Joint, and aircraft structure

The purpose of the present invention is to provide a fuel tank, main wings, an aircraft fuselage, an aircraft, and a moving body, which enable working hours and costs involved in a manufacturing process to be reduced, and weight increases to be prevented. The fuel tank includes a structural member in which carbon fiber reinforced plastic (CFRP) is used, the carbon fiber reinforced plastic (CFRP) including a reinforcing material that includes carbon fibers and a matrix that includes plastic. The structural member is formed by laminating a conductive sheet between prepregs of the carbon fiber reinforced plastic (CFRP). In this case, a cut surface of the structural member formed by cutting the structural member may be exposed on the inside in which fuel is stored.

Fuel tank, main wings, aircraft fuselage, aircraft, and moving body

A joint () joins a plate member () with a preform (), wherein an inclined part (), which is inclined relative to a surface that is orthogonal to the direction in which a tensile load is applied to the plate member (), is formed on a surface () that joins with the preform (). Moreover, an indented part () corresponding to the shape of the inclined part () is formed on the preform () so that the inclined part () of the joint () is embedded into the indented part (). The joint () is embedded in and bonded to the preform ().

The purpose of the present invention is to provide: a structural material for structures which is capable of attaining reductions in working time and cost in production steps and of preventing an increase in weight; a fuel tank; a main wing; and an aircraft. A rib () as the structural material for structures is characterized by comprising a carbon-fiber-reinforced plastic wherein the reinforcement comprises carbon fibers and the matrix comprises a plastic, and the surface of the carbon-fiber-reinforced plastic was coated with a low-viscosity surface-protective material () having conductivity imparted thereto.

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Tokyo, Japan

Kazuaki Kishimoto