Abstract:
An encapsulated electronic assembly comprises an electronic component and a foamed thermoplastic shell disposed about the electronic component. The foamed thermoplastic shell is formed from a thermoplastic encapsulant comprising a thermoplastic resin and a filler and is foamed with a foaming agent. A method of encapsulating the electronic component to form the encapsulated electronic assembly is also provided. The method includes the steps of melting the thermoplastic encapsulant, foaming the thermoplastic encapsulant, and injection molding the foamed thermoplastic encapsulant about the electronic component to form the foamed thermoplastic shell.
Abstract:
A method and apparatus for Z-direction reinforcement of composite laminates is disclosed. Discrete fibers (25) are pulled through a fiber composite preform (11) in the Z-direction by needles (27) having bars (29) thereon to insert the Z-direction reinforcement (31) into the composite preform (11) from a discrete fiber mat (23) having discrete fibers (25) therein.
Abstract:
A fabric comprising elongated metal elements and thermoplastic material, said thermoplastic material being present in a volume of at least 40 % of the total volume of said fabric, whereby at least part of the elongated metal elements are metal cords.The invention also relates to a method of manufacturing a reinforced article by applying heat and/or pressure to such a fabric.
Abstract:
The present disclosure relates to a method for manufacturing a body comprising a particle structure fixated in a matrix material, said method comprising the steps of: - providing a mixture of a viscous matrix material and particles, - subjecting said particles to an acoustic standing wave, so as to arrange at least portion of said particles in a pressure node and/or a pressure antinode of the acoustic standing wave thereby creating a particle structure In said viscous matrix material and - fixating said viscous matrix material so as to fixate said particle structure In said matrix material. The disclosure also relates to a body obtained by said method, and to the use of said method in various applications.
Abstract:
A method and apparatus for Z-direction reinforcement of composite laminates is disclosed. Discrete fibers are pulled throng a fiber composite preform in the Z-direction by barbed needles.
Abstract:
A method for rotational moulding of articles, including the step of rotationally moulding a mixture of particulate plastics material comprising at least one thermoplastics material having a first particle size and a second thermoplastics material having a larger particle size wherein, in use, said first thermoplastic material fuses to form an outer skin (5) and subsequently said second thermoplastics material fuses to form an inner skin (6) bonded to the outer skin of a resultant moulded article. The method may also include the step of incorporating a quantity of rollable moulded reinforcing elements (7) in the mould with said first and second thermoplastics materials, wherein the reinforcing elements are located in a spaced array thereby forming bridges between opposed inner skin surfaces as they expand. Articles, such as a shipping pallet, rotationally moulded using the method are also disclosed.
Abstract:
The invention relates to a plastic-based composite product which consists at least partially of a plastic in which a material consisting substantially of particles is homogeneously embedded, which particles have tensile strength in at least one principal direction. The invention provides a product of the stated type which has the special feature that the particles comprise: small particles, in particular plates or fibres, with a random orientation and a length of 0.2-2 mm; and large particles with a dominant orientation, for instance 80-95 %, of the said principal direction of the particles in a chosen product principal direction and a length in the particle principal direction of about 2-6 mm.
Abstract:
A composite element (1) for the realization of protection devices of parts of the human body comprises a matrix (2), a reinforcing element (3), at least partially embedded in the matrix (2), wherein the reinforcing element (3) has at least one opening (5) shaped so as to define an undercut (10) between the matrix (2) and the reinforcing element (3), such undercut (10) being suitable for determining a mechanical constraint between the matrix (2) and the reinforcement element (3).
Abstract:
The present invention relates to a method for making a plastic drainage pipeline reinforced by steel strips, comprising the steps of (1) steel strips and plastic being integrated to form a composite profile having ribs reinforced by steel strips; (2) the composite profiles being transported to an installation site; (3) the composite profiles being wound, and simultaneously the edge of the profile being melted and welded to form plastic drainage pipes reinforced by steel strips; and (4) a spigot joint being made at one end of the pipe. The present invention also relates to a plastic drainage pipe made by the method, comprising a plastic pipe body and reinforcing ribs integrated with the plastic pipe body as a whole, wherein the ribs of the plastic pipe are reinforced by steel strips enwrapped by the plastic. The present invention also provides an apparatus for making the plastic drainage pipe reinforced by steel strips.
Abstract:
The invention relates to a reinforcing structure (13), comprising metallic elements (15) (16), to be used to reinforce stiff composite articles (14) comprising such reinforcing structure and a polymer matrix. The reinforcing structure comprises metallic elements with structural deformations in order to improve the bending properties of the reinforcing structure and the impact properties of the stiff composite article, for which the reinforcing structure is used. The metallic elements run essentially parallel to each other.