Mitsubishi Heavy Industries Limited

Nagoya University

Yukio Takeuchi

Shunichi Morishima

Kazuaki Kishimoto

Toshio Kozasa

Masatake Hatano

Masayuki Yamashita

Hitoshi Ojika

Koichi Tanimoto

Yoshiyuki Kondo

Yusuke Yanase

Kosuke Ikeda

Takahiro Ito

Makoto Kuwahara

Toru Ujihara

Wataru Nishimura

Katsunori Akiyama

Masahiko Matsuhashi

Fumiaki Ichihashi

Peter Baltzer

Takahiko Kawaguchi

Satoru Nooka

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

An object is to provide a composite material manufacturing method for improving interlayer strength. The present disclosure provides a composite material manufacturing method of laminating a plurality of prepregs () formed of a fiber reinforced base material impregnated with an uncured matrix resin and performing hot molding, the method including: using the prepregs () each provided with a gap layer () that does not contain a resin and is continuous in an in-plane direction and resin layers () disposed on both surfaces of the gap layer; disposing a plurality of short fibers () on facing surfaces of the prepregs () that are adjacent to each other; and evacuating the laminated prepregs () to degas the gap layer () and then performing hot molding.

Composite material manufacturing method and composite 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

A pultruded material includes a thermosetting resin, and a reinforced fibers impregnated with the thermosetting resin. The thermosetting resin includes a solid resin that contains a fire-resistant resin having a median oxygen index of equal to or higher than, a long-chain fatty acid ester that has a median number of carbons per molecule within a range equal to or more than 3 and equal to or less than 1000, and that has a median flash point within a range equal to or higher than 150 degrees Celsius, and an additive that has a median BET specific surface area within a range equal to or more than 150 m/g and equal to or less than 250 m/g, and that has a median primary particle diameter within a range equal to or more than 5 nanometers and equal to or smaller than 20 nanometers.

Pultruded material and method for manufacturing pultruded material

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

Electrons excited by irradiation of a visible light to a sample is at an energy level lower than a vacuum level, thus photoelectrons are not emitted from the sample and energy of excited electrons cannot be measured. The visible light is irradiated to the sample through a mesh electrode. A surface film for reducing the vacuum level is formed on a surface of the sample. With the surface film being formed, photoelectrons are obtained by the visible light, and these photoelectrons are accelerated by the mesh electrode toward a photoelectron spectrometer. Ultraviolet light may be irradiated to the sample and metal having same potential therewith. In this case, the mesh electrode is set at a retracted position to prohibit interaction of the mesh electrode and the ultraviolet light. A difference between the valence band and the Fermi level of the sample can be measured.

Apparatus and method for measuring energy of electrons

An autoclave () is one in which a heat application target molded material (W) is retained in shape by a retaining jig () which has a cavity () therein, and is heat-cured with high temperature gas. The autoclave is provided with: a pressure vessel () in the interior of which the molded material (W) is arranged; a high temperature gas supplying device () which supplies the high temperature gas to the molded material (W) within the pressure vessel (); and an auxiliary high temperature gas supplying device () which supplies the high temperature gas into the interior of the cavity ().

Autoclave and method for heat curing molded material

A transferring apparatus is provided with a heavy object cassette which is a heavy object contained in a cassette integrally, a common steel plate to which support rods are fixed, the support rods being inserted in holes formed horizontally in the heavy object cassette, and a play mechanism which allows adjustment of a relative position between the holes and the support rods by adjusting a position of the common steel plate, a base unit having thereon the play mechanism and a lifting and lowering device, and a slide mechanism which supports the base unit and is movable forward and backward relative to a main body of the transferring apparatus.

Growing community of inventors

Tokyo, Japan

Yukio Takeuchi