A method for molding a composite material and a device for molding a composite material are provided which are able to suppress the occurrence of voids in a composite material and improve the mechanical characteristics and appearance quality of the composite material. In the method for molding a composite material (10), a seal region (270) including a cavity (250) in which a reinforcing base material (11) is disposed and an outer peripheral region (260) that communicates with an outer periphery of the cavity is air-tightly sealed by means of a first sealing member (310). Then, an operation of suctioning a gas from the outer peripheral region to evacuate the gas in the seal region is started, and a resin (12) is injected into a part of the cavity. Next, a mold (200) is clamped to provide a liquid-tight seal between the cavity and the outer peripheral region by means of a second sealing member (320) while pressing the resin to fill the cavity with the resin. After that, the operation of suctioning the gas from the outer peripheral region is stopped.

A seal structure is used in a mold constituted by a plurality of segments to manufacture a hollow composite material structure. In the seal structure, a seal member formed in a line shape having ends is inserted in a seal groove provided on at least one of adjacent side surfaces of the segments. A lip portion is provided at a seal upper portion of the seal member such that at least a tip end of the lip portion projects to an outside of the seal groove. When the adjacent side surfaces of the segments are coupled to each other, the seal member is crushed in a cross sectional direction by the other of the adjacent side surfaces of the segments. With this, complication of the manufacture of the composite material structure can be suppressed or avoided while realizing a satisfactory sealed state between the adjacent segments.

A mould (10) for a tire, comprising two shells (30) that are each intended to mould a lateral sidewall of the tire, a ring of sectors (20) intended to mould a tread of the tire, each sector (20) of the ring of sectors comprising a radially inner face (21) having a moulding lining (22). The mould (10) has microstructures (50) that are designed to fill a clearance between two moulding linings (22) of adjacent sectors (20) and/or between a moulding lining (22) of one sector (20) and a shell (30), when the mould is closed.

The present application relates to a mold for substrate surface functionalization. In the mold, a rubber strip is provided between an upper mold plate and a lower mold plate in a clamping manner, and a fastening structure enables the upper mold plate and the lower mold plate to clamp in opposite directions, such that the rubber strip, the upper mold plate and the lower mold plate form a mold cavity together under the action of a clamping force; and a positioning structure is used for fixing a substrate in the mold cavity, such that a pouring space is formed between at least one side surface of the substrate and the upper mold plate and/or the lower mold plate, the pouring space being used for pouring a modified material for surface functionalization of the substrate. The present invention further relates to a method for substrate surface functionalization.

A mold assembly for producing a part includes a first section, a second section movably coupled to the first section, and a cavity defined by the first section and the second section, the cavity being shaped to receive a part while the first section and the second section are movably coupled to each other. The mold assembly includes a joint formed by adjacent surfaces of the first section and the second section and a seal extending along the joint.

A reusable mold membrane is provided for forming an outer mold during a process to encapsulate a target object in a substance, the mold membrane comprising: a cylindrical membrane body comprising a resiliently deformable material, wherein an inner diameter of the cylindrical membrane body is less than an outer diameter of the target object provided on an outer surface of a cylindrical carrier object, when the membrane body is in an un-deformed state; and a plurality of manipulation structures provided on an outer part of the membrane body, each of the plurality of manipulation structures configured to be manipulated by application of mechanical force to control the space within the membrane body by controlling the amount of deformation of the membrane body. There is also disclosed a method for use during a process to encapsulate a target object in a substance.

Mold including a first shell having a cavity, a second shell having a projection, and an intermediate shell having a projection suitable for being coupled in the cavity of the first shell and a cavity suitable for being coupled with the projection of the second shell. The second shell includes a first injection channel extending from an inlet hole in a side wall of the second shell to an outlet hole in the projection of the second shell. The intermediate shell has a second injection channel extending from an inlet hole in a side wall of the intermediate shell to an outlet hole in the projection of the intermediate shell.

A mold for manufacturing a wind turbine blade, including: a lower mold component, and an upper mold component, wherein the lower mold component and the upper mold component form a mold cavity in the shape of a wind turbine blade, and the upper mold component includes at least two upper mold parts is provided. The required floor-to-ceiling height of a production hall is decreased and the required lifting capacity of a crane is lowered.

A device for moulding at least one bladed part of a turbine engine, including a base; a mould formed from a plurality of parts nested inside one another, this mould being applied to the base. A first seal is mounted between the mould and the base; and a bell is mounted on the mould and around the mould, this bell being applied to the base. A second seal is mounted between the bell and the base, this bell being configured to be held tight against the base and having interior surfaces engaging by wedge effect with complementary exterior surfaces of the mould in order to apply a clamping force on the parts of this mould.

An in-mold sealing system for sealing openings in a wind turbine blade mold, the system including a wind turbine blade mold having an interior surface configured to form a surface of the wind turbine blade, the interior surface of the mold having at least one opening therein, at least one boss disposed within the at least one opening of the mold, the boss extending a distance beyond the interior surface of the mold, a flexible diaphragm having opposing first and second surfaces, with the first surface facing the mold, the flexible diaphragm disposed over the opening in the mold surface and a gasket, the gasket having a first surface coupled to a perimeter portion of the flexible diaphragm, and a second surface coupled to the interior surface of the mold, wherein the gasket circumscribes the opening.