B29C70/68

Method for producing a component from a fibre composite, preform therefor, and component

A method for producing a component from a fiber composite. A number of layers of a dry fibrous material are stacked to form a pile, the pile is covered by a thermoplastic film in a gas-tight manner, the inner space occupied by the pile within the film is pumped dry and the layers are fixed to form a preform that is stable during transport, the preform is reshaped, a liquid thermosetting material is inserted into the inner space by infiltration of the fibrous material, and the preform is hardened with the infiltrated fibrous material to form the finished component, the film binding permanently as the surface. The invention also relates to a component produced in such a way, and to a corresponding preform. The production method provides a process-integrated surface finishing of the fiber composite. The surface properties are created by the bound thermoplastic film.

Method for producing a component from a fibre composite, preform therefor, and component

A method for producing a component from a fiber composite. A number of layers of a dry fibrous material are stacked to form a pile, the pile is covered by a thermoplastic film in a gas-tight manner, the inner space occupied by the pile within the film is pumped dry and the layers are fixed to form a preform that is stable during transport, the preform is reshaped, a liquid thermosetting material is inserted into the inner space by infiltration of the fibrous material, and the preform is hardened with the infiltrated fibrous material to form the finished component, the film binding permanently as the surface. The invention also relates to a component produced in such a way, and to a corresponding preform. The production method provides a process-integrated surface finishing of the fiber composite. The surface properties are created by the bound thermoplastic film.

Collapsible vessels
09770009 · 2017-09-26 · ·

Collapsible vessels comprising a rubbery material can be folded or scrunched into a small volume, and then spring into a shape suitable for holding water or food such as for a pet.

Composite material member, gap material, pultrusion device, and pultrusion method

This pultrusion material that is a composite material member comprises: a plurality of fiber sheets that extend along a lengthwise direction; and a gap material that is provided to a gap formed by the plurality of fiber sheets, wherein the gap material has a gap fiber sheet including reinforcement fibers that are oriented in a different fiber direction than the lengthwise direction, and has gap reinforcement fibers that are oriented in the same fiber direction as the lengthwise direction. Additionally, the gap reinforcement fibers are provided evenly distributed in a cross-section of the gap material, said cross-section being perpendicular to the lengthwise direction.

SELF-STIFFENED CASING CONSISTING OF A COMPOSITE MATERIAL WITH AN ORGANIC MATRIX
20170266893 · 2017-09-21 ·

A gas turbine casing made of composite material from fiber reinforcement densified by a matrix. The casing includes at least one stiffener portion extending at a radius greater than the radius of upstream and downstream portions of the casing that are adjacent to the stiffener portion so as to form an annular recess in the inside surface of the casing.

Device and method for producing a curved fiber preform from a bi-or multidirectional fiber semi-finished product

A device for producing a curved fiber preform from a bi- or multidirectional fiber semi-finished product, in particular for an aircraft or spacecraft fuselage component has first lamellae and second lamellae formed to be couplable to one another criss-cross such that they are positioned on a shared plane and thus form a grid. The lamellae at least in part are formed resiliently bendable about an axis intersecting the shared plane such that a local orientation of the lamellae in the grid changes. An adhesion device or structure is formed for temporarily adhering the fiber semi-finished product and is configured such that the local fiber orientation of the fiber semi-finished product also changes accordingly when the lamellae bend.

COMPOSITE CONSTRUCTION FOR AN INCREASED SERVICE LIFE

A composite construction, such as, in particular, a composite plate having a sandwich-type construction, has two outer layers which are mutually opposed in parallel and a foam material completely filling the space between the outer layers at least in some regions. The outer layers are interconnected by means of spacers, and the spacers are connected to the outer layers via a cured plastics material.

COMPOSITE CONSTRUCTION FOR AN INCREASED SERVICE LIFE

A composite construction, such as, in particular, a composite plate having a sandwich-type construction, has two outer layers which are mutually opposed in parallel and a foam material completely filling the space between the outer layers at least in some regions. The outer layers are interconnected by means of spacers, and the spacers are connected to the outer layers via a cured plastics material.

Motor bobbin

Provided is a motor bobbin around which a winding wire is wound, said motor bobbin comprising insulating paper and a resin molded body. The insulating paper and the resin molded body are coupled and fixed together without using an adhesive agent. Surfaces of the insulating paper which are in contact with the resin molded body are configured using aramid paper comprising an aramid fibrid and aramid short fibers. Resin is melt extruded and thermal-fusion bonded upon the aramid paper comprising the aramid fibrid and the aramid short fibers, and the surfaces configured from the aramid paper are surface treated to obtain the insulating paper. The motor bobbin is obtained by bringing melted portions of the resin molded body into contact with the top of the aramid paper.

BLADDER MANDREL PACKAGE

A bladder mandrel package, used to manufacture a composite structure, includes a mandrel and a wrap ply, surrounding the mandrel to form a wrapped mandrel. The bladder mandrel package also includes a first radius filler, coupled to the wrap ply at a first radius of the wrapped mandrel, and a second radius filler coupled to the wrap ply at a second radius of the wrapped mandrel. The mandrel, the wrap ply, the first radius filler, and the second radius filler are consolidated to from the bladder mandrel package.