Systems and methods are provided for facilitating pick and placement of preforms. One embodiment is a method for picking and placing a preform. The method includes placing an inner surface of a first caul plate into contact with a first side of a stringer preform, such that an outer surface of the first caul plate forms a first plane that is uniform along a length of the stringer preform, placing an inner surface of a second caul plate into contact with a second side of the stringer preform, such that an outer surface of the second caul plate forms a second plane that is parallel to the first plane along a length of the stringer preform, grasping the caul plates at the first plane and the second plane along the length of the stringer preform, and lifting the stringer preform together with the caul plates while maintaining the grasp.

The present invention is directed to a new concept for an internal metallic tank of large-scale high-pressure gasholder in which pluralities of internal tanks have been accumulated like a honeycomb structure and for the manufacturing processes of the internal metallic tank.

Systems and methods are provided for facilitating pick and placement of preforms. One embodiment is a method for picking and placing a preform. The method includes placing an inner surface of a first caul plate into contact with a first side of a stringer preform, such that an outer surface of the first caul plate forms a first plane that is uniform along a length of the stringer preform, placing an inner surface of a second caul plate into contact with a second side of the stringer preform, such that an outer surface of the second caul plate forms a second plane that is parallel to the first plane along a length of the stringer preform, grasping the caul plates at the first plane and the second plane along the length of the stringer preform, and lifting the stringer preform together with the caul plates while maintaining the grasp.

The present invention relates to a method for producing a laminate having a backing sheet and a decorative paper arranged on the backing sheet, including the steps of: a) providing the backing sheet, b) scattering at least one layer of at least one powdered resin onto at least one side of the backing sheet, the surface of the side of the backing sheet that is to be scattered with the powdered resin being unsmoothed, c) placing at least one decorative paper onto the side of the backing sheet that is provided with the powdered resin, and d) pressing the layered structure including the backing sheet, the powdered resin and the decorative paper. The present invention likewise relates to a laminate that can be produced by this method.

The invention relates to a nozzle element for introducing a liquid, in particular an adhesive material and/or a sealing material, into a joint, having an outlet opening, wherein at least one cushion-like bulged covering element is provided, which encompasses the outlet opening at least sectionally, in particular entirely, such that during the introduction, areas of the joint and/or joint edges adjacent to the outlet opening are covered.

Provided is an adhesive that can provide quick bonding between thermoplastic resins and excellent bond strength, a structure having adhesion provided by the adhesive, and an adhesion method using the adhesive. The adhesive bonds a first member (11) containing a thermoplastic resin or a carbon fiber reinforced thermoplastic resin and a second member (12) containing the thermoplastic resin or the carbon fiber reinforced thermoplastic resin. The adhesive includes a thermoplastic resin as a main component containing a metal nano material that absorbs electromagnetic waves and generates heat.

A method of manufacturing a tank comprises providing a covered liner by winding a fiber impregnated with a thermosetting resin on a liner; and performing a heat curing process that cures the thermosetting resin by heating the covered liner in a heating furnace. The heat curing process comprises controlling the heating to prevent temperature of the thermosetting resin that is changed by the heating from exceeding a heat resistant temperature of the liner.

A method of producing a single assembled longitudinally extending fibre layer for use in a later resin infusion process for manufacturing a fibre-reinforced composite structure is described including steps: a) providing a first fibre mat comprising unidirectional reinforcement fibres oriented in a longitudinal direction of the first fibre mat, b) providing a second fibre mat comprising unidirectional reinforcement fibres oriented in a longitudinal direction of the second fibre mat, c) arranging the first fibre mat and the second fibre mat so that unidirectional fibres of one end of the first fibre mat adjoin one end of the second fibre mat in a single plane at a common boundary, and d) splicing unidirectional fibres of the first fibre mat at one end of the first fibre mat to unidirectional fibres of the second fibre mat at one end of the second fibre mat in order to form a splicing joint.

Embodiments of systems and methods for positioning and bonding a nutplate to a substrate comprising at least one aperture, wherein the system includes a nutplate retention fixture formed from a threaded insert and an elastomeric tube engaged with the threaded insert; a heater assembly formed from a heating element, a temperature sensor operable to measure the temperature of the heating element, and a heater housing; a heater retention fixture operable to engage with the nutplate retention fixture and maintain the heater assembly in contact with the substrate; and a heater controller operable to control the output from the heating element. The heater retention fixture includes a spring-loaded nut clamp provided concentrically around the threaded insert and configured to secure the heater retention fixture to the nutplate retention fixture.

The present disclosure provides a wind turbine blade with an improved trailing edge structure and a manufacturing method thereof. The wind turbine blade includes an upper shell, a lower shell, and a trailing edge, where a trailing edge bonding region enclosed by the upper shell, the lower shell and the trailing edge is filled with composite materials, and the composite materials are discontinuous in an airfoil chordwise direction. The manufacturing method includes the following steps: S1: manufacturing reinforcements with a same cross-sectional shape as the trailing edge filling region for composite materials; and S2: integrally molding the reinforcements, a fiber fabric and the upper shell, providing the lower shell, combining the upper shell and the lower shell, and performing heating for curing and molding. The discontinuous filling structure reduces usages of the adhesive and the reinforcements of the composite materials. The small web can improve a strength of the trailing edge region, and reduce a bonding width of the trailing edge. Therefore, the present disclosure realizes a light weight of the wind turbine blade.