Abstract: A method for manufacturing a thick turbine engine part in a composite material by injection of resin under pressure. A fiber preform is positioned in a mold, a resin composition is injected into the mold, the resin composition is polymerized in the mold so as to obtain the part, and the part is removed from the mold. Prior to the injection of the resin composition, a mold release shim is inserted between the fibrous preform and a wall of the mold, and between the polymerization of the resin composition and the removal of the part from the mold, the mold release shim is extracted.

Abstract: A method of forming a nanocomposite material that includes nanoparticles includes disposing in a forming apparatus a fiber material, a carrier material with nanoparticles dispersed therein, the carrier material having a releasing trigger to release the nanoparticles, the releasing trigger being at least one of a releasing temperature and a releasing pressure, and a resin having an infusion temperature, increasing the temperature within the forming apparatus to a temperature at least equal to the infusion temperature of the resin to allow the resin to impregnate the fiber material without triggering the releasing trigger of the carrier material, and triggering the releasing trigger of the carrier material in the forming apparatus by increasing at least one of the temperature and the pressure within the forming apparatus to cause dispersion of the nanoparticles.

Abstract: A stand-alone, rigid lacrosse pocket is formed from a piece of mesh netting that is shaped to exhibit a desired pocket contour. Once shaped, a coating of stiffening material is applied to the netting and embeds within the shaped mesh netting to “fix” the desired pocket contour and form a rigid lacrosse pocket. The rigid lacrosse pocket is thereafter attached to a conventional lacrosse head, using the same stringing technique as commonly used to attach the mesh netting to the head. Advantageously, by pre-fabricating the lacrosse pocket, the need to “work” the netting into the desired shape is eliminated, and a player can quickly and easily change pockets as necessary. A method of fabricating the stand-along, rigid lacrosse pocket is also disclosed.

Abstract: A shell structure includes a composite material layer and a second material layer is provided. The composite material layer includes a woven layer and a first material layer. The woven layer has a first surface and a second surface opposite to each other. The first material layer is located on the first surface and has a plurality of through-holes. The second material layer is disposed on the first material layer and has a plurality of extending-portions adapted to be combined with the woven layer and fix the second material layer and the composite material layer to each other. In addition, a manufacturing method for shell structure of electronic device is also provided.

Abstract: Provided is a RTM method wherein a molding die composed of a temperature control mechanism, which is arranged on at least one of a plurality of dies that form a molding die and adjusts the temperature of the die, and a valve mechanism, which starts and stops supply of a resin in a state of having fluidity to the cavity of the molding die, is used. In the method, a plurality of the valve mechanisms are arranged on the molding die, each of the valve mechanisms is provided with one or a plurality of temperature control systems which adjust the temperature of the valve mechanism, the resin in the state of having fluidity is supplied to the cavity from the valve mechanisms, and a reinforcing fiber base material contained in the cavity is impregnated with the resin.

Abstract: A mould including: a central core having a side wall with a plane external surface; an internal mould element having an internal surface facing the external surface of the central core, with surfaces inclined to the vertical in order to form an angle of clearance, and a substantially vertical external surface; an external mould element fitted against the internal mould element and having a substantially vertical internal surface facing the external surface of the internal mould element; at least one of the facing surfaces being designed to receive a substantially vertical lateral preform so that the internal mould element and the external mould element are suitable for clamping said lateral preform.

Abstract: A module (1) for holding at least one bushing (17) within a recess, wherein it comprises two side surfaces (2, 3), an upper (4) and a lower (5) surface and at least one end surface (6), wherein the upper (4) and lower (5) surfaces are of different width and arcs, respectively, in their cross-section, and the side surfaces (2, 3) are of equal height, and when coupled to a second module (8) by its side surfaces (3, 9), which second module (8) optionally may also hold at least one bushing (17), the sum of the angle (alpha) between the optionally imaginary plane side surface (12) of the one module (1) and the tangent (10) to its upper surface (4) at the intersection (A) with the side surface (3) and the angle (beta) between the optionally imaginary plane side surface (13) of the other module (8) and the tangent (11) to its upper surface (15) at the intersection (B) with the side surface (9) is at least 180 degrees and/or a plurality of modules (1), optionally when holding the bushings (17), form at least a sectio

Abstract: A method for fabricating an artificial skin such as for use with a robotic assembly. The method includes providing a mold assembly with an exterior mold and an interior core. A cavity is defined between inner surfaces of the exterior mold and exterior surfaces of the interior core, thereby defining a shape and thickness of a skin. A surface of the interior core includes offsets or standoffs extending outward from the interior core surface. The method further includes positioning a sheet of reinforcement material over the surface such that the sheet contacts the offsets. The method includes pouring material for the skin system into the mold to occupy the cavity between the exterior mold and the interior core. The method includes disassembling the mold assembly and removing the skin with the sheet of reinforcement material embedded within the skin at an offset distance from a surface of the skin.

Abstract: A method for creating a material sheet with fibers includes the steps of feeding a layer of loose fibers to a conveyor; applying a resin to the loose fibers, the resin being capable of bonding to the loose fibers; conveying the loose fibers and resin to a mold; and allowing the resin applied to the loose fibers to fill the mold and then solidify to harden in a desired thickness.

Abstract: The present invention provides a resin composition for a fiber-reinforced composite material, which has excellent fluidity and impregnation into a fiber base material and which produces a cured product having excellent heat resistance. A resin composition for a fiber-reinforced composite material contains, as essential components, a poly(glycidyloxyaryl) compound (A), a polymerizable monomer (B) which is an unsaturated carboxylic acid or an anhydride thereof and has a molecular weight of 160 or less, an aromatic vinyl compound or a (meth)acrylate (C), and a radical polymerization initiator (D), wherein an equivalent ratio [glycidyloxy group/acid group] of a glycidyloxy group in the component (A) to an acid group in the component (B) is 1/1 to 1/0.48, and a molar ratio [(B)/(C)] of the component (B) to the component (C) is in the range of 1/0.55 to 1/2.

Abstract: A composite laminate includes a plurality of sheets of prepreg stacked one over another, and a scrim layer provided on an exterior surface of the sheets of prepreg. Each prepreg sheet is formed of fibers preimpregnated with resin. The scrim layer and the sheets of prepreg form a composite laminate whereby the scrim layer constitutes an outer, exposed surface of the composite laminate. The scrim layer may be a nonwoven carbon or glass fiber scrim that has absorbed resin from the sheets of prepreg. A method of making a composite laminate includes placing into a mold a scrim and a plurality of sheets of prepreg, with the scrim extending between an exterior surface of the sheets of prepreg and an inner surface of the mold; forming a composite laminate whereby the scrim is adhered to the sheets of prepreg; and removing the composite laminate from the mold. An outer layer of the composite laminate includes the scrim.

Abstract: A method of fabricating a composite panel is disclosed. The method includes cutting a portion of carpet, applying vacuum to the carpet portion, transferring resin into the carpet portion under vacuum, and curing the resin impregnated carpet portion.

Abstract: Disclosed is a method for manufacturing a high-strength composite sheet, in which a peroxide-containing polymer film is used to allow uniform molecular weight distribution and improved embeddability. The method includes: attaching a peroxide-containing polymer film to one or both sides of a reinforcement material; pressing the peroxide-containing polymer film using a heating press such that the peroxide-containing polymer film is embedded into the reinforcement material, to thereby form a composite film; and cooling the pressed composite film using a cooling press.

Abstract: A process for manufacturing a composite article, which include combining a nonwoven mat of extruded fibers with one or more layers of fabrics to form a preform, and injecting the preform with a liquid thermosetting resin. The extruded fibers are formed by combining and extruding a thermoplastic carrier material with a toughening material within a predetermined temperature range. The carrier material is immiscible with the toughening material, and the toughening material is encapsulated within the carrier material. The carrier material is at least partially soluble in the thermosetting resin within a predetermined temperature range, and the toughening material is insoluble in the thermosetting resin during a cure cycle. A preform having at least one nonwoven mat of extruded fibers is also disclosed.

Abstract: Resin infused composite parts are fabricated using a caul sheet having perforations therein for optimizing the flow of resin through the parts. The method allows for a simplified tooling and consumable arrangement for complex parts while achieving a smooth, aerodynamic caul-side or bag-side finish. The component may be placed in direct contact with a tool, and the caul sheet may be placed in direct contact with the component thereby eliminating the necessity for consumables between these items.

Abstract: A fiber composite component comprising at least two, first and second partial elements bordering one another, each having a fiber structure and different matrix systems which respectively embed the fiber structure and cure differently from a liquid state is produced by liquifying the matrix system of the first partial element so that it either penetrates irregularly into the region of the bordering second partial element or leaves an unwetted region in the first partial element adjacent the second partial element, and subsequently liquifying the matrix system of the second partial element so that it can be cured abutting the irregular boundary surfaces of the matrix system of the first partial element. The intermeshing or interlocking of the matrix systems with one another and the fibers increase shear strength.

Abstract: A touch fastener strip includes a sheet-form material substrate having a front face, an array of fastener elements integrally molded with a resin base layer on the front face of the substrate and an array of discrete regions of resin (e.g., gripping elements) integrally molded with a resin base layer through apertures in the sheet-form material on the back face of the substrate. The array of fastener elements forms a discrete band of fastener elements extending longitudinally along the front face of the fastener strip, and the array of gripping elements forms a discrete band of gripping elements extending longitudinally along the back face of the fastener strip.

Abstract: The disclosure is generally directed to a modified blade stiffener having enhanced mechanical properties. An illustrative embodiment of the modified blade stiffener includes a stiffener-forming material shaped into a pair of coupled blades having first and second ends, a filler cavity provided at the first end of the blades, a blade filler provided in the filler cavity and a pair of blade flanges provided at the second end of the blades.

Abstract: Composite prepreg is laid up over a tool by placing prepreg material on a carrier film and using the carrier film to apply the prepreg material to the tool. The prepreg is conformed to contours of the tool by deforming the carrier film.

Abstract: An injection molded carpet mat includes a flexible base having an upper surface defining a carpet recess, and an opposite lower surface. A carpet sheet is secured in the carpet recess by being integrally formed with the base, and having a napped top surface, a bottom surface and a peripheral edge. The lower base surface having a plurality of spaced ribs supporting the carpet bottom surface adjacent the peripheral edge and defining a track on the lower base surface corresponding to the peripheral edge of the carpet sheet.

Abstract: A non-woven fabric composite containing coir fibers and a method for producing such composites. The non-woven fabric composite is comprised of coir fibers, which are large diameter, lignin-rich fibers, with a high viscous flow temperature and a high degradation temperature combined with fibers made of a thermoplastic polymer with a lower viscous flow temperature such as polypropylene (“PP”), polyethylene (“PE”), polylactic acid (“PLA”), and polyester (“PET”) or mixtures thereof. A hot-pressed non-woven fabric composite material prepared from the non-woven fabric composite.

Abstract: A process for manufacturing a curved structural part includes fabricating a mold of the curved structural part having at least two faces that form a male mold section between a minimum radius of curvature of the curved structural part and another radius of curvature belonging to one of the two faces, preparing a stack of multidirectional fibers of one or more fiber plies oriented ±? or 90° in relation to a longitudinal direction of the curved structural part, cutting a first multidirectional strip in the stack extending longitudinally and having a width at least equal to a maximum width of the curved structural part, applying the first multidirectional strip over the mold to gradually conform the first multidirectional strip to the mold, applying the first multidirectional strip on the face having the minimum radius of curvature, and pressing and tightening the first multidirectional strip over the other faces.

Abstract: A method and apparatus for manufacturing a composite stringer. A composite material and foam are laid up onto a tool in the form of a stringer. The foam has a plurality of structural members within the foam. The plurality of structural members has a number of orientations to resist a number of loads. The composite material, the foam in the form of the stringer, and the plurality of structural members are cured to form the composite stringer.

Abstract: A fin (410) with a discrete structural strand layer (420) that may include high tensile carbon fibre strands (422, 424) and high tensile strength and toughness Kevlar (426) strands. These structural strands may have a tensile strength substantially greater than the other materials typically used in a fin body. The structural strand layer (420) provides an economic and ready technique to vary and control a stiffness characteristic of the fin in a variety of directions or about a variety of axes of rotation; without varying the other common components that may be used in a fin body, for example core (412), layers of fibreglass fabric (414) and/or resin.

Abstract: A method is provided for producing a metal composite. The composite includes a metal material and a resin curing layer provided along the metal material, and is obtained by using heat and pressure to mold a preform. The preform includes a sheet-shaped base material containing a thermosetting resin, and a metal material arranged or layered so as to contact the sheet-shaped base material. The method for producing a metal composite includes heating the sheet-shaped base material and semi-curing the thermosetting resin while the metal material in the preform arranged inside a mold is heated to a temperature exceeding 180° C., and molding the preform into a composite using pressure, wherein the thermosetting resin is at least one type selected from the group consisting of epoxy resins, phenol resins, benzoxazine resins, and unsaturated polyester resins.

Abstract: An aircraft seat back including a composite material seat back frame element and a composite seat back diaphragm molded to the seat back frame element during a molding step to provide a composite aircraft seat back formed of a seat back frame element and a seat back diaphragm.

Abstract: Described are materials for a shoe upper, in particular for soccer shoes, with a particularly low weight. The material includes an inner polyurethane layer, an outer polyurethane layer, and a textile reinforcing layer. The textile reinforcing layer is arranged between the inner polyurethane layer and the outer polyurethane layer. The inner polyurethane layer and the outer polyurethane layer comprise thermoset polyurethane. The textile reinforcing layer comprises apertures through which the inner polyurethane layer and the outer polyurethane layer are connected to each other.

Abstract: A curable aqueous composition is disclosed comprising a carbohydrate, a crosslinking agent, and an amine base, wherein the curable aqueous composition has a pH adjusted by the amine base. Further disclosed is a method of forming a curable aqueous solution.

Abstract: The invention concerns a method of moulding a part (1?) made from composite material. This method comprises a step of injecting a liquid (7) under pressure into a closed mould (2) containing a fibrous pre-form (1) previously impregnated with resin. Said liquid (7) comes into contact with the resin but it is substantially inert and immiscible with respect thereto. The invention also concerns an apparatus for carrying out this method.

Abstract: The present invention relates to fiber-reinforced thermoplastic resin composition comprising 0.1 to 10 mass % of a (meth)acrylic-based polymer, 1 to 70 mass % of reinforcing fiber, and 20 to 98.9 mass % of thermoplastic resin, wherein the (meth)acrylic-based polymer has, in a side chain, at least one functional group selected from a hydroxyl group, a carboxyl group, an amide group, and an urea group, and has a cohesive energy density (CED) of 385 to 550 MPa. The present invention provides, particularly in the case of using a polyolefin-based resin as matrix resin, a fiber-reinforced thermoplastic resin composition and a reinforcing fiber bundle which have high adhesiveness and good mechanical characteristics.

Abstract: The invention relates to methods and to a manufacturing device for manufacturing a sandwich component. A semifinished product arrangement is soaked with a flowable matrix material, for example a resin, in particular by an infusion method. By using the method of the invention, inherent tensile stresses introduced by the respective method and remaining in the sandwich component to be manufactured are reduced, and moreover the risk of crack formation in the course of the process, afterwards and during operation of the sandwich component is minimized.

Abstract: A disc filter disposed around a drum for filtering water. The disc filter includes a frame structure and a plurality of filter segments arranged around the drum and secured to the support. Each filter segment includes a filter frame having first and second portions and filter material integrated with the first and second portions of the filter frame through an injection moulding process.

Abstract: The invention relates to a process for producing moldings made of a fiber-reinforced polymer, comprising the following steps: (a) inserting a fiber structure into a mold and injecting a polymer precursor compound around the fiber structure or saturating a fiber structure with a polymer precursor compound and inserting the saturated fiber structure into a mold, where the viscosity of the polymer precursor compound is at most 2000 mPas, (b) polymerizing the polymer precursor compound to give the polymer, to produce the molding, (c) removing the molding from the mold as soon as the polymerization process has proceeded at least to the extent that the molding is in essence dimensionally stable.

Abstract: Disclosed herein is a method for utilizing the exothermic energy generated by a low temperature cure reaction to access a high-temperature cure reaction, which is otherwise energetically inaccessible at a chosen tool temperature, thereby producing a cured resin matrix with properties closely matching to those produced via high-temperature cure reactions but achieved via a short cure time and low cure temperature. Also disclosed is a short-cure resin composition containing: (a) at least one multifunctional epoxy resin having an epoxy functionality of greater than 1; (b) a hardener composition containing (i) at least one aliphatic or cycloaliphatic amine curing agent having one or more amino groups per molecule; (ii) at least one aromatic amine curing agent having one or more amino groups per molecule; and optionally, (iii) an imidazole as curing accelerator. The improved properties of this resin composition include being curable at a temperature of ?120° C.

Abstract: A functionalized carbon fiber having covalently bound on its surface a partially cured epoxy or amine-containing sizing agent, wherein at least a portion of epoxide or amine groups in the sizing agent are available as uncrosslinked epoxide or amine groups, which corresponds to a curing degree of epoxide or amine groups of no more than about 0.6. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.

Abstract: A wind turbine blade includes a pressure side shell member with an internal side spar cap, and a suction side shell member with an internal side spar cap. A box-shaped shear web assembly spans between the spar caps and has a generally hollow interior volume. The shear web assembly includes end walls affixed to a respective spar cap and spaced-apart side walls extending transversely between the end walls. The end walls and side walls define a continuous box-shaped assembly structurally interposed between the spar caps. Methods are also provided for making the box-shaped shear web assembly.

Abstract: A process for manufacturing products made of composite materials is disclosed which includes the steps: screwing at least one insert provided with a threaded hole on the outer thread of at least one pin partially inserted in a removable manner in a mould; arranging on the mould one or more fiber layers provided with at least one opening in which the insert is arranged; curing resin with the layers arranged on the mould, so as to obtain a product made of a composite material which incorporates the insert and the layers; rotating the pin in the insert for removing it from the mould. The present invention also relates to a mould, devices and a kit which can be employed for carrying out the process, as well as to products manufactured with this process and/or these means.

Abstract: A method of manufacturing a vehicle trim component is provided that includes disposing a fiber panel onto a first surface of a mold cavity. The method also includes compressing the fiber panel between the first surface and a second surface of the mold cavity to form the fiber panel into a desired shape. The method further includes injecting resin into the mold cavity to fill at least one void between the first surface and the second surface adjacent to the fiber panel.

Abstract: A rifle sighting system, that includes a metal base assembly and a train of optical elements affixed to the base assembly, and including a front optical element having a front surface and having a rear optical element having a rear surface. A cover, made of light weight material is affixed to the base assembly and sized and shaped to cover and protect the train of optical elements, other than the front surface of the front optical element and the rear surface of the rear optical element.

Abstract: A method of manufacturing a component from a composite-fiber-material semifinished product includes providing a forming support having a contour including at least one section corresponding to a surface of the manufactured component. The semifinished product is placed onto the forming support and the semifinished product is formed such that the semifinished product contacts the forming support. Further, a device form manufacturing component includes the forming support having the contour including at least one section corresponding to the surface of the manufacture component.

Abstract: Process for the production of a molding from particulate and/or fibrous substrates based on renewable raw materials and a formaldehyde-free, aqueous binder.

Abstract: A manufacturing process for a bicycle hub includes steps of preparing dry carbon fiber fabric, covering around inner tube, placing in upper and lower molds, injecting adhesive into the upper and lower molds, and forming by heating and pressurizing. Because the manufacturing process uses tubular dry carbon fiber fabric to form a hub shell, the manufacturing process is simple and the produced hub has few defects. Thus, the production rate and product stability are enhanced.

Abstract: A composite golf club shaft having a reinforcing ribbon of composite material spiraling along an intermediate portion of the shaft and bonded thereto to reinforce the hoop strength of the shaft. The ribbon is shaped into a rib of different cross-sectional shapes, the preferred embodiment being a thin rectangular shape approximately 0.125 wide of an inch and spiraling at a rate of four turns per inch, producing a groove of equal width. The methods of the invention produces the shaft by providing a mandrel having the outside shape desired for the shaft's inside surface; wrapping a ribbon of reinforcing material around the shaft in a spiral groove therein; forming the shaft body around the mandrel; and separating the mandrel from the shaft after curing, by unscrewing the mandrel.

Abstract: The process of forming a molded part comprising providing a masterbatch composition comprising 65 to 85 weight percent wood pulp fiber and 15 to 35 weight percent thermoplastic polymer, placing the masterbatch composition directly into an injection molder; adding additional material comprising thermoplastic polymer to provide a let-down composition whereby the let-down composition comprises 20 to 50 weight percent wood pulp fiber and 45 to 85 weight percent thermoplastic polymer, forming molded parts from the injection molder.

Abstract: A fiber filling box divided into compartments by slotted divider walls, preferably comb-like divider fences with vertical tines extending downwardly from a top frame, is lowered onto an air-permeable conveyor over at least one vacuum box in a fiber filling station. A multi-axis controlled nozzle blows fiber material to different depths and/or densities in the individual compartments. The divider fences allow continuous intertwining of fibers between adjacent compartments, but sufficiently contain the fibers to maintain well-defined boundaries between different fiber depths and/or densities in the individual compartments. Hold-down plates are lowered onto the fiber material, the fiber filling box is lifted away, and then the hold-down plates are lifted to release a shaped fiber mass, which is then heated and compacted in a heating station to form a fiber preform. The hot fiber preform is then molded, compressed and cooled in a molding station to produce a molded fiber component.

Abstract: Embodiments of reinforced composite structures for aircrafts and methods for making such reinforced composite structures are provided herein. A reinforced composite structure for an aircraft comprises a fiber reinforced composite stringer. The fiber reinforced composite stringer comprises a beam body portion and a runout portion that extends from the beam body portion in a first direction. The beam body and runout portions are defined by projection of a variable I-shaped cross-section in the first direction along at least a portion of an entire combined length of the beam body and runout portions. The variable I-shaped cross-section has a cap section, a foot section, and a web section that extends between the cap and foot sections. The variable I-shaped cross-section is configured such that a height of the web section tapers in the first direction along at least a portion of an entire length of the runout portion.

Abstract: A coupling made of composite material including a polymer matrix reinforced by a fiber structure is disclosed. The coupling includes a structural portion reinforced by a main fiber structure, and a first machining portion reinforced by a first fiber structure that is distinct from the main fiber structure. The matrices of the structural portion and of the first machining portion are identical. The first machining portion is situated on at least a fraction of the main face of the structural portion and is machined in a first machining surface. There is no intersection between the first machining surface and the fibers of the main fiber structure.

Abstract: A composite fabric product comprises at least one layer of textile material and at least one layer of melted plastic material, wherein non-melting textile material is embedded in at least one of the said layers of melted plastic material, and wherein filaments or yarns located in at least one of said layers of textile material extend into said at least one layer of melted plastic material and interlace with the non-melting textile material embedded therein.

Abstract: The invention relates to a crosslinking two-component polyurethane composition consisting of (i) a constituent A containing polyols and additives, and (ii) a constituent B containing between 100 and 65 wt. % of aromatic polyisocyanates, between 0 and 35 wt. % of aliphatic polyisocyanates, and between 0.05 and 3.0 wt. % of a retarder, and optionally additives, the mixed composition having a viscosity (EN ISO 2555) of between 100 mPas and 3000 mPas at 25° C., and the crosslinked composition having a glass transition temperature (Tg) of higher than 50° C. and a pot life of longer than 60 minutes. The two-component polyurethane composition is suitable as an adhesive and as a matrix substance for composite materials.

Abstract: A resin transfer molding (RTM) molding device is designed to mold a fiber-reinforced plastic (FRP) molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a chain curing polymer (CCP). A CCP accommodating layer is disposed adjacent to an outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP to the exterior. An element for separating the molded body is disposed between the body and the layer.