A main beam for wind turbine blade, comprising: one or more carbon fiber pultruded bodies, wherein, each carbon fiber pultruded body comprising one or more carbon fiber pultruded sheets, the carbon fiber pultruded sheets are stacked along the thickness direction and are formed by curing a first infusion material, wherein a glass fiber infusion material is arranged between every two carbon fiber pultruded sheets; one or more inlays, which are arranged adjacent to the carbon fiber pultruded body in a direction perpendicular to the thickness direction of the main beam; one or more overlays, which cover the carbon fiber pultruded bodies and/or the inlays on both sides in the thickness direction of the main beam; and a second infusion material, which impregnates carbon fiber pultruded bodies, the inlays and the overlays.

A method of producing a reinforcement element for reinforcing a structural element in a motor vehicle includes the following steps: pultruding a support element having a longitudinal axis that extends, when in use, along a longitudinal axis of the structural element, the support element having a plurality of outer faces that extend in the direction of the longitudinal axis; placing an adhesive on at least one of the outer faces of the support element; and cutting the pultruded support element to size

A method of producing a reinforcement element for reinforcing a structural element in a motor vehicle includes the following steps: pultruding a support element having a longitudinal axis that extends, when in use, along a longitudinal axis of the structural element, the support element having a plurality of outer faces that extend in the direction of the longitudinal axis; placing an adhesive on at least one of the outer faces of the support element; and cutting the pultruded support element to size

A method of manufacturing a product including at least two carbon parts including the step of: manufacturing a first carbon part, manufacturing at least a second carbon part, providing on a surface of one of the first carbon part or second carbon part a plurality of protrusions including a carbon resin, joining together the first carbon part and the second carbon part in such a way that the plurality of protrusions is interposed between the first carbon part and second carbon part for providing physical and electrical connection is provided.

A floor board, and a method and apparatus for manufacturing same. The floor board (100) comprises a polyurethane-foam board (110). The polyurethane-foam board (110) is made of a polyurethane foam material foamed from a polyurethane foam raw material. The polyurethane-foam board (110) is provided with a plurality of linear members (120) passing though the polyurethane-foam board in a predetermined direction. The plurality of linear members (120) are arranged at intervals. The polyurethane-foam board (110) is foaming-molded by continuous drawing.

A floor board, and a method and apparatus for manufacturing same. The floor board (100) comprises a polyurethane-foam board (110). The polyurethane-foam board (110) is made of a polyurethane foam material foamed from a polyurethane foam raw material. The polyurethane-foam board (110) is provided with a plurality of linear members (120) passing though the polyurethane-foam board in a predetermined direction. The plurality of linear members (120) are arranged at intervals. The polyurethane-foam board (110) is foaming-molded by continuous drawing.

Provided herein is a spar cap having a profile for guiding and receiving a shear web for wind turbine blade. Particularly, the present disclosure provides a pultruded spar cap having a bond gap feature to maintain a uniform space for distribution of bonding paste between the spar cap and shear web. Also, the spar cap is formed with locating features which guide and receive placement of the shear web.

A high modulus composite part is disclosed comprising a polymer resin; and a plurality of high-performance unidirectional glass fibers. The high-performance unidirectional glass fibers have an elastic modulus of at least 89 GPa and a tensile strength of at least 4,000 MPa, according to ASTM D2343-09. The composite part comprises a fiber weight fraction (FWF) of no more than 88% and an elastic modulus of at least 60 GPa, according to ASTM D7205.

A high modulus composite part is disclosed comprising a polymer resin; and a plurality of high-performance unidirectional glass fibers. The high-performance unidirectional glass fibers have an elastic modulus of at least 89 GPa and a tensile strength of at least 4,000 MPa, according to ASTM D2343-09. The composite part comprises a fiber weight fraction (FWF) of no more than 88% and an elastic modulus of at least 60 GPa, according to ASTM D7205.

A system (15) for manufacturing a reinforcing element (1) for reinforced concrete comprises a feeder (16) of a reinforcing fiber bundle (2) along a pultrusion path (4), an impregnating device (17) which impregnates the reinforcing fiber bundle (2) with a liquid thermoplastic polymeric resin (6) to obtain an impregnated fiber bundle (2), a forming channel (8) through which the impregnated fiber bundle (2) is conducted, a solidification device (19) of the composite thread (9) forming a solidified thermoplastic fiber-reinforced bar (11), a pulling device (20) which holds the reinforcing fiber bundle (2) taut along the pultrusion path (4), a winder (21) which winds the solidified bar (11) to form a coil (14), a provisional bending device (22) which bends the composite thread (9) not yet solidified or heats the solidified bar (11) to soften it, bends the heated bar (11) and then cools the bar (11) to solidify it again, so as to confer a continuous provisional curvature to the solidified bar (11) in the direction of the subsequent winding in the coil (14).