Abstract: This molding method involves: a first step in which a perforation pin (2) is made to protrude into a cavity (13) in a mold (1); a second step in which a molten resin (16) is injected to fill the cavity (13) so as to envelop the protruding part of the perforation pin (2); a third step in which, in a state in which the resin (16) is in an uncured state, the perforation pin (2) is made to protrude further; and a fourth step in which the resin (16) is cured to obtain a molded resin article.

Abstract: In the present invention, it is possible to reduce the occurrence of a local deformation in a plate material during solidification and shrinkage of an injection molding material. The composite material injection molding method includes an injection step of injecting an injection molding material containing reinforcing fibers onto one surface of a plate material; and a molding step of solidifying the injection molding material to mold a frame part so as to surround the outer periphery of the plate material and to mold a rib so as to define an inner peripheral-side space on the inner peripheral side of the frame part. In the injection step, the injection molding material is injected so that a weld part at which the injection molding material converges is formed in a region not overlapping the plate material of the frame part.

Abstract: A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin, and has a blade root and an airfoil extending from the blade root in a longitudinal direction.

Abstract: A forming method of a cylindrical composite material includes layering a plurality of composite material sheets in a cylindrical shape with splices formed between ends of adjacent composite material sheets such that phases of the splices in a circumferential direction differ from each other; heating the composite material sheets layered at the layering while pressurizing the composite material sheets in a state where the layered composite material sheets are disposed along an inner surface of a composite material cylindrical mold to cause a resin included in the composite material sheets to react to combine the composite material sheets to be formed in a cylindrical shape; and performing an adhesion pretreatment that is performed before the heating and allows the inner surface of the composite material cylindrical mold to adhere to an outermost composite material sheet of the layered composite material sheets.

Abstract: This composite material blade molding method for molding a composite material blade by curing a prepreg, wherein the composite material blade has a back-side blade member and a belly-side blade member which are superposed and joined. The composite material blade molding method comprises: a lamination step for forming a back-side laminate in a back-side molding die and forming a belly-side laminate in a belly-side molding die; an inner surface cowl plate disposition step for disposing an inner surface cowl plate for maintaining an inner space formed by the back-side laminate and the belly-side laminate; a die mating step for die-mating the back-side molding die and the belly-side molding die and disposing a foaming agent in the inner space maintained by the inner surface cowl plate; and a curing step for heating and expanding the foaming agent and heat-curing the back-side laminate and the belly-side laminate.

Abstract: A reinforcing member includes a flange portion extending along a surface of a target member to be reinforced, a web portion extending in a direction intersecting the surface, a joint connecting the flange portion and the web portion. In a filler space formed between the joint and the surface, a filler is placed. The filler is at least partially surrounded by a foam resin in the filler space.

Abstract: A composite blade is formed by laying up composite material layers in which reinforcement fibers are impregnated with resin in a thickness direction of the blade. The composite blade includes a blade root on a base end side, an airfoil on a tip side, a first lay-up in which some composite material layers are laid up in the blade root so as to space parts of the composite material layers to form spacing parts and to extend from the distal toward the base end side in the thickness direction, and second lay-ups in which some composite material layers are laid up in the spacing parts so as to be lined up in the thickness direction. Among the second lay-ups, a second lay-up closer to a center side than to an outer side in the thickness direction is a larger distance from a proximal position to a top position.

Abstract: A composite blade includes a composite blade body including reinforced fibers and resin; a metal layer provided on an outer side of a leading edge section including a leading edge that is a part of the composite blade body on an upstream side of an air stream, the metal layer having a thickness of equal to or larger than 5 micrometers and equal to or smaller than 100 micrometers; an adhesive layer provided between the composite blade body and the metal layer to bond the metal layer to the composite blade body; and an electric insulating layer provided in contact with a surface of the leading edge section of the composite blade body, the surface being on the side on which the metal layer is provided, the electric insulating layer having an electric insulating property.

Abstract: A plated plated fiber-reinforced member includes: a fiber-reinforced member formed of a composite fiber material in which multiple reinforcing fibers dispersed in a resin, some of the multiple reinforcing fibers being allowed so that portions thereof protruding from a surface of the resin; and an electroless-plated layer formed on the fiber-reinforced member to cover the surface of the resin and the portions of the reinforcing fibers protruded from the surface of the resin.

Abstract: A composite blade formed by laying up composite layers containing reinforcing fiber and resin, the composite blade comprising: a blade root mounted in a blade groove; an airfoil extending from the blade root to a front end side; and a metal patch mounted between the blade groove and the blade root, and bonded to the blade root.

Abstract: A composite blade made of prepreg obtained by impregnating reinforcement fibers with resin and curing the resin-impregnated reinforcement fibers, the composite blade including: a blade root provided on a base end and fitted into a blade groove; an airfoil provided extending from the blade root toward a tip end; and a metal patch provided between the blade groove and the blade root and placed on the blade root. The metal patch includes a plurality of projections protruding toward the blade root.

Abstract: Provided is a method of shaping a composite blade made of a composite material by curing prepreg in which reinforcing fibers are impregnated with resin. A foaming agent disposed in an internal space of the composite blade contains a plurality of foaming bodies and foaming agent resin. The foaming bodies foam by being heated. The foaming agent resin cures by being heated. The foaming bodies include low-temperature side foaming bodies and high-temperature side foaming bodies. The low-temperature side foaming bodies foam in a low temperature range during a curing step. The high-temperature side foaming bodies foam in a high temperature range corresponding to temperatures higher than the low temperature range during the curing step.

Abstract: A front end body structure (3) has a front wall portion (4) which forms a front surface (4b) in a front-rear direction (Da) and has edge portions which form an opening portion (4a) opened; and a ceiling wall portion (5) which is continuous with the front wall portion (4) and forms a ceiling surface (5a) facing an upper side. In t front wall portion (4), side edge portions (41, 42) on both sides in the width direction (Dw) and an upper edge portion (40) on the upper side among edge portions surrounding the opening portion (4a) have a multi-axial fiber-reinforced plastic material in which at least two directions along the outer surface are set as a fiber direction. At least a partial region of the ceiling wall part (5) including a central portion in the width direction (Dw) has a core material sandwiched between the multi-axial fiber-reinforced plastic materials.

Abstract: A bonding member according to an embodiment includes: a metal member including a first base portion made of metal and a first engagement portion made of metal and provided integrally with the first base portion; and a resin member including a second base portion made of resin and a second engagement portion made of resin and provided integrally with the second base portion so as to engage with the first engagement portion. The first engagement portion includes a three-dimensional structure formed by a frame to form a plurality of cavities communicating with each other inside the frame, and the second engagement portion includes a resin filled in the plurality of cavities of the three-dimensional structure. A ratio of the frame per unit volume including the cavity and the frame in the first engagement portion gradually increases toward the first base portion while fluctuating.

Abstract: The present invention provides a casing for a radial compressor including: a scroll portion which is disposed on an outer circumferential side of an impeller and an intake portion and extends in a circumferential direction, has a discharge port opening in a circumferential direction and a scroll flow path through which the gas from the impeller flows toward the discharge port, and includes a resin material having a gradually increasing external shape dimension; and a plurality of ribs which connect an outer circumferential surface of the intake portion and an outer surface of the scroll portion. The plurality of ribs are provided at intervals in the circumferential direction, an installation interval gradually decreases toward the discharge port in the circumferential direction, and a length dimension in a radial direction on the outer surface of the scroll portion gradually decreases.

Abstract: A motor includes a rotation shaft, a magnet unit fixed to the rotation shaft to rotates with the rotation shaft, and a coil unit arranged to face the magnet unit in an axial direction. The magnet unit includes a magnet ring in which magnets are arranged in a circumferential direction of the rotation shaft, and a holding ring provided at an outer peripheral side of the magnet ring to hold the magnet ring. The holding ring includes a composite material in which a carbon fiber is impregnated with resin. The carbon fiber includes a pitch-based carbon fiber and a PAN-based carbon fiber. A volume ratio of the pitch-based carbon fiber is larger than that of the PAN-based carbon fiber in a portion at an outer peripheral side; a volume ratio of the PAN-based carbon fiber is larger than that of the pitch-based carbon fiber in a portion at an inner peripheral side.

Abstract: A leading edge cover member is provided on an outside of a leading edge area including a leading edge serving as a part on an airflow upstream side of a composite blade body containing reinforcement fibers and a resin. The leading edge cover member includes a composite cover base material that contains reinforcement fibers and a resin, and is provided to the outside of the leading edge area in a bonding manner; and a metallic reinforcement layer formed on at least a part of an outside of the composite cover base material.

Abstract: A fuel tank dam comprises a first section, a second section, a third section, and a flange section. The first section can be fixed to a first structural component, and the second section can be fixed to a second structural component. The third section has a bellows comprising a plurality of folded sections and is disposed between the first section and the second section. The flange section extends along an outer plate at least from an edge section of the third section and can be fixed to the outer plate.

Abstract: This impeller cover is provided with: a machinable abradable seal section which has a shroud surface, which faces the outer peripheral surface of an impeller rotating about its axis, and which provides a seal between the outer peripheral surface and the shroud surface; a cover body which covers the impeller from the outside and which has a seal housing section for housing the abradable seal section therein; and a filling material which is interposed between the abradable seal section and the cover body.

Abstract: A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin. The composite layers are laid up in a blade thickness direction that is a direction connecting a suction side and a pressure side of the composite blade. The composite blade includes a thick part that has a surface layer area from a surface of the thick part to a predetermined depth in the blade thickness direction and a deep layer area at a depth larger than the predetermined depth from the surface in the blade thickness direction. A median value in a predetermined range of thicknesses of each composite layer in the surface layer area is smaller than a median value in a predetermined range of thicknesses of each composite layer in the deep layer area.