摘要:
Incorporation of functional cloth into prepreg composites A combined prepreg material (10) for use in composite lay-up techniques is described. The material (10) comprises first and second layers (12, 18) impregnated with a matrix material such as a resin. The first layer (12) is a functional layer and the second layer (18) is a keying layer. The keying layer (18) comprises a keying medium to facilitate bonding of the combined prepreg material (10) to a gel coat. The functional layer (12) comprises a woven cloth (14). A circuit is provided on a first surface (16) of the cloth (14).
摘要:
A method of manufacturing a wind turbine blade shell part comprising fibre material impregnated with cured resin is described. The method comprises the steps of : a) providing a first mould part (110) having a first forming surface (112) with a contour that defines at least a part of an outer surface of turbine blade shell part, b) arranging fibre material in the first mould part, the fibre material comprising fibres of a magnetisable material, c) providing a resin in the first mould part simultaneous with and/or subsequent to step b), and d) curing the resin in order to form the wind turbine blade shell part or wind turbine blade (150). The fibre material is retained against the first forming surface by use of magnet means (114, 116, 118) during step b) and/or step c). A mould part comprising magnet means (114, 116, 118) and a wind turbine blade are also described.
摘要:
A process for producing at least one three-dimensional object by solidifying a solidifyable material, comprising the steps of: providing an object carrier capable of carrying the object to be produced; providing a material capable of solidifying when subjected to energy supply; bringing a solidifyable material carrier/provider in a position to carry/provide solidifyable material at least in a building region where solidifyable material is to be solidified; supplying, to the building region, energy capable of solidifying the solidifyable material; and sensing, measuring and/or controlling a condition selected from the group consisting of pressure and/or strain. Alternatively or in combination, contact pressure, fluid pressure and/or material flowability can be sensed and/or adjusted.
摘要:
The invention relates to a heat transfer element made of a polymer matrix having a fibrous material interspersed therein, said heat transfer element comprising a fluoropolymer at least on an outer surface thereof, the interspersion of the fibrous material within the polymer matrix providing rigidity to the heat transfer element, a thermally conductive material being distributed within the heat transfer element. Such a heat transfer element can be used in the manufacture of radiant panels for power generating stations or can be formed as a pipe for similar use. The heat transfer element may comprise a polymer sheet having fibrous material distributed therein providing structural strength and a fluoropolymer at least on an outer surface of the element which protects the element from physical and chemical corrosion whilst providing anti-fouling properties and good flow characteristics to the element. A thermally conductive material is distributed within the element to provide the necessary heat transfer characteristics.
摘要:
Methods are provided for manufacturing bipolar graphite articles. First and second components are formed from flexible graphite material. The first component may have a protrusion formed thereon, and the second component may have a recess formed therein which is complementary to the protrusion of the first component. The first and second components are assembled so that the protrusion of the first component is received in the recess of the second component. Preferably, the components are made from uncured resin impregnated graphite material. The assembled components are then pressed together and heated to cure the resin so as to bond the components together. Alternatively the second component, or both the components, may have flat surfaces which engage the other component.
摘要:
Reinforcement of structures (32) in high moisture environments is achieved by applying reinforcement layers which include a fabric portion (34) and an uncured resin portion (36) where the uncured resin contains a moisture curable silicon-modified poyether resin. The uncured reinforcement layer is cured in place about the structure to form a composite reinforcement shell (32). The uncured reinforcement layer is formed from either dry-woven fabric or woven fabric which is preimpregnated with a cured resin and then coated with the moisture-curable silicon-modified polyether resin. The invention finds particular use in reinforcing bridge supports and pilings which are at least partially submerged in water. Containment layers are used to prevent de-lamination during curing of the reinforcement structure. Use of a containment layer not only prevents de-lamination caused by waves or other turbulent water, but also enhances the underwater curing process.
摘要:
The present invention relates to a fibre reinforced plastic member which is characterized in that it is provided with a hybrid region having carbon fibre and high-elongation organic fibre. By means of the present invention, it is possible to provide cheaply, and without losing the outstanding characteristics of carbon fibre reinforced plastic such as light weight, high strength and high modulus, safe fibre reinforced plastic members which, even should they break, show little scatter of fragments or exposure of a dangerous fracture surface.
摘要:
The present invention relates to a fibre reinforced plastic member which is characterized in that it is provided with a hybrid region having carbon fibre and high-elongation organic fibre. By means of the present invention, it is possible to provide cheaply, and without losing the outstanding characteristics of carbon fibre reinforced plastic such as light weight, high strength and high modulus, safe fibre reinforced plastic members which, even should they break, show little scatter of fragments or exposure of a dangerous fracture surface.