The invention relates to a method of manufacturing a shell part (101) for a wind turbine blade also comprising an add-on component (301, 302) connected to the shell part (101) along a connection face. The method comprises the steps of providing an insert (102) with a side surface of approximately the same shape as the connection face, positioning the insert in an open mould, and placing one or more layers (105) of material in the mould (103) to form the shell part (101) wherein the layers (105) are placed in abutment to the side surface (104) of the insert (102) thereby forming a side surface (108) of the shell part (101) of approximately the same shape as the connection face. After resin cure, the insert (102) is removed. The invention further relates to a method of manufacturing a wind turbine blade shell member (100) comprising such a shell part (101), and layers (105) of material are placed in the mould (103) in abutment to the side surface (108) of the shell part (101) to form the add-on component (301, 302).

In one embodiment, a stiffener may be formed by inserting a plurality of flexible mandrels into a channel of a tool having a three-dimensional contour, placing a vacuum bag over the flexible mandrels and the tool, with the mandrels disposed between the vacuum bag and the tool, and applying vacuum pressure between the vacuum bag and the tool. A hardening substance may be inserted into each of the plurality of flexible mandrels and then may be hardened while the plurality of mandrels are inserted in the one or more channels of the tool. Finally, the mandrels may be wrapped with a stiffener material with stiffeners being formed from the stiffener material.

The invention discloses a manufacturing process of a display screen cover, and a display screen. The manufacturing process includes the following steps: S1, providing a lamp panel provided with LED lamp beads; S2, arranging a glue barrier; S3, filling the hollow region of the glue barrier with glue I, and covering the LED lamp beads with the glue I; S4, providing a press plate; S5, curing the glue I; and S6, removing the press plate and the glue barrier. The cover does not need to be additionally assembled on the lamp panel, so that the lamp beads are protected against damage from the cover, and the yield of display screens is increased; and gaps between the lamp beads are completely filled with the cover, so that the lamp beads are fully protected.

The invention concerns a preform for a CAD/CAM machining apparatus having an upper face and a lower face a11d in which at least one of the cells is filled with a composite material to be machined by CAD/CAM, said material comprising long unidirectional fibers embedded in a cross-linked polymer matrix.

A weld bead cutting device is configured such that, a liner made as liner portions are abutted on and welded to each other is rotated around a rotation axis extending in a direction along an abutting direction, and a weld bead is cut with a cutting tool arranged among rollers in a state where the rollers are pressed against an outer peripheral surface of the liner, the rollers being arranged on both sides of the weld bead on the liner in a direction along an extending direction of the rotation axis.

Presented are repair systems for fixing filler-reinforced polymer structures, methods for making/using such repair systems, and techniques for repairing surface damage/defects of multidimensional fiber-reinforced polymer (FRP) panels. A repair system for fixing a contoured surface of an FRP structure includes a flexible contact sheet that is fabricated from a thermally stable polymer, and has a textured contact surface that seats on the FRP structure and overlays the damaged area. A rigid cover sheet, which may be fabricated from a metal material, a polymeric material, and/or resin-impregnated fiber, has a complementary surface that conforms to the contoured surface of the FRP structure and covers the flexible contact sheet. The repair system also includes a heating element that lays against the rigid cover sheet and applies heat to the contoured surface with a substantially uniform profile that is sufficient to soften/melt portions of the FRP structure neighboring the damaged area.

A carbon fiber casing of a goalkeeper PU foam hockey stick and a production process thereof are disclosed. The carbon fiber casing of the goalkeeper PU foam hockey stick comprises a reinforcing carbon fiber casing, a wood or fiber stick and PU foam. A reinforcing part is arranged on the PU foam. The reinforcing carbon fiber casing is forcibly disposed around the corresponding reinforcing part of the PU foam. The PU foam is laminated onto the wood or fiber stick together with the reinforcing carbon fiber casing. The reinforcing carbon fiber casing is formed by heating fibers and epoxy resin in a mold, so that the strength of the whole goalkeeper PU foam hockey stick is improved.

A curved surface resin structure includes a support, and a laminate section within a plane of the support, where at least a conductive layer and an electronic material layer are laminated in the laminate section. A surface curvature radius rA1 (mm) of end of the laminate section, a surface curvature radius rA2 (mm) of another end of the laminate section facing the one end with a center region of the laminate section present at a middle point, and an average curvature a radius rB (mm) of a surface of the laminate section satisfy Inequality (1): rA1, rA2<rB, or Inequality (2): rA1, rA2>rB.

The invention relates to a method for applying an adhesive tape on a flange of a stiffener, each flange extending longitudinally and including an outer profile, the method comprising a step for driving the stiffener from upstream to downstream along a circulation path; a step for measuring the outer profile of a portion of the flange of the stiffener in a first position of said circulation path; a step for applying said adhesive tape on the flange of the stiffener; then a step for cutting said adhesive tape, in a second position of said circulation path situated downstream from the first position, based on said measured outer profile.

In a method for producing a resin molded body, a thermosetting resin member is formed by heating a thermosetting resin material that is a raw material of the thermosetting resin member to complete a curing. A nascent surface having a functional group is formed on at least a part of a sealed surface of the thermosetting resin member by removing a surface layer that is an outermost layer of the sealed surface via irradiation of laser light to the sealed surface. The sealed surface of the thermosetting resin member is sealed with the thermoplastic resin member by injecting a thermoplastic resin material to the thermosetting resin member having the nascent surface, the functional group of the nascent surface being chemically bonded to the functional group of the additive. The thermosetting resin member has an absorption of the laser light at or above 10% per 1 m.