Abstract:
Método de colocación de insertos en piezas de material compuesto, que consiste en realizar en la pieza (1) de aplicación un orificio (2) con holgura respecto de la forma del inserto (3) a colocar, disponiéndose sobre el inserto (3) una camisa (4) tejida con fibras naturales y/o sintéticas, para introducir el inserto (3) provisto con la camisa (4), en el orificio (2), aplicando una presión de empuje del inserto (3) hacia el interior, mientras que en el hueco que queda entre el inserto (3) y la pared del orificio (2) se infusiona resina, la cual empapa a la camisa (4) para fijar el inserto (3) sobre la pared del orificio (2).
Abstract:
Three-dimensional carbon fiber based composite support structures and methods for the manufacture and use thereof are disclosed and described. In one aspect, such a support structure may include a lattice of intersecting support members made of a carbon fiber composite material and a cover of the same carbon fiber composite material as the lattice, fused to at least one side of the lattice and covering at least a portion thereof.
Abstract:
The present invention provides a biodegradable extruded netting. The netting comprises a plurality of interconnected strands with at least some of the strands comprising a biodegradable composition comprising polylactic acid polymer and biodegradable plasticizer. In at least one embodiment, at least 10 % of the strands are made of the biodegradable composition. The present invention also relates to a method for making biodegradable extruded netting. The method comprises extruding strands of polymeric material to form a netting wherein at least some of the strands are formed of the biodegradable composition.
Abstract:
The machine (1) for producing porous membranes (2) for medical use comprises a plurality of reserves (25a, 25b, 25c, 26a, 26b, 26c) of components (18a, 18b, 18c, 19a, 19b, 19c) which constitute fluid substances, first and second guns (16, 17) supplied from the reserves (25a, 25b, 25c, 26a, 26b, 26c) for spraying the fluid substances onto an element (37) on which the substances are deposited and build up, the element (37) and the guns (16, 17) being mobile relative to one another for substantially even distribution of the fluid substances designed to form the membrane (2).
Abstract:
Several layers of unidirectionally fibre-reinforced plastic rods (6) are superimposed crosswise in a template and bound at their crossing points to form a reinforcement grating (1). The grating is introduced together with liquid artificial resin into a casting mould (15, 17). A moulding element (18) with hollow moulding bodies (22) is lowered into the casting mould (15, 17). Each moulding body (22) enters an opening of the grating (1), displacing the artificial resin. When the artificial resin is set, the moulding bodies (22) are detached from the rubber suction cups (23) by pressure compensation, the moulding element (18) is lifted and the finished grating is removed from the mould (15, 17). The moulding bodies remain as lost moulds undetachably joined to the grating. The protruding moulding elements are ground off. This process allows highly resistant gratings to be produced. The prefabricated reinforcement (1) is also suitable for reinforcing other plastic products.
Abstract:
A method for bonding a porous medium (29) to the surface of a solid substrate (41) is disclosed. The method comprises positioning a dry porous medium (29) near a dry surface of a substrate (41) and impregnating the porous medium with a bonding composition by opening a valve (47) and allowing the bonding composition to pass through passageway (33) to groove (31). The impregnated porous medium (29) is maintained near the substrate surface (41) until the substrate surface is at least slightly dissolved in the bonding composition without dissolving the porous medium (29). At least a portion of the bonding composition is flushed through the impregnated porous medium (29) towards the substrate (41) and subsequently away from the surface of the substrate by opening of valve (44) at the adaptor (42) to a vacuum source (45). The bonding composition is then evaporated at a controlled rate from the substrate (41) and the porous medium (29).
Abstract:
A process is disclosed for manufacturing a composite slab with an outer stone slab. The back side of the stone slab is coated with an expansible epoxy resin which solidly binds to the stone slab over its whole surface. In addition a heating resistance wire reinforcement can be set into the epoxy resin layer, and by connecting a current source to the reinforcement, expansion and curing of the epoxy resin layer may be controlled. These composite slabs have an enormously reduced weight. They are mainly used as lining and casing slabs having an outer stone layer of high esthetic quality.
Abstract:
Unión de elementos (1) que forman parte de estructuras aeronáuticas, estando dichos elementos (1) realizados en material compuesto, con otros elementos termoplásticos o termoplásticos reforzados (2) pertenecientes también a estructuras aeronáuticas, comprendiendo dicho elemento (1) al menos una parte de su estructura realizada en material termoplástico, estando dispuesta dicha parte de material termoplástico en la estructura de la capa más superficial del elemento (1) de material compuesto,con respecto al elemento termoplástico o termoplástico reforzado (2) con el que va a unirse, de tal modo que la unión entre los elementos (1, 2) se realiza por medio de soldadura ultrasónica sin fusión, aplicándose presión y calor a través de la fricción de las superficies de los elementos a unir (1, 2), consiguiéndose de este modo una unión permanente de los elementos (1, 2), siendo al mismo tiempo posible su extracción.
Abstract:
The machine (1) for producing porous membranes (2) for medical use comprises a plurality of reserves (25a, 25b, 25c, 26a, 26b, 26c) of components (18a, 18b, 18c, 19a, 19b, 19c) which constitute fluid substances, first and second guns (16, 17) supplied from the reserves (25a, 25b, 25c, 26a, 26b, 26c) for spraying the fluid substances onto an element (37) on which the substances are deposited and build up, the element (37) and the guns (16, 17) being mobile relative to one another for substantially even distribution of the fluid substances designed to form the membrane (2).