Mould and method for vacuum assisted resin transfer moulding
2 Assignments
0 Petitions
Accused Products
Abstract
A mould and method for vacuum assisted resin transfer moulding of a fibre reinforced laminated structure are provided. The mould includes a first mould part and a second mould part. The first mould part defines a negative impression of the laminated structure, being structurally stable and forming a support for fibre reinforcement layers of the laminated structure. The second mould part connectable to the first mould part for closing the mould and defines together with the first mould part an enclosed space which can be evacuated. The mould further includes a flow duct for guiding a liquid polymer which is formed as a recess in the first mould part and/or a recess in the second mould part that is open towards the enclosed space and extends along a section of the periphery of the first mould part and/or the second mould part.
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Citations
27 Claims
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1-11. -11. (canceled)
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12. A mould for vacuum assisted resin transfer moulding of a fibre reinforced laminated structure, comprising:
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a first mould part defines a negative impression of the fibre reinforced laminated structure, the first mould part structurally stable and forms a support for fibre reinforcement layers of the fibre reinforced laminated structure; a second mould part connectable to the first mould part in order to close the mould and together with the first mould part defines an enclosed space to be evacuated; and a flow duct that guides a liquid polymer, the flow duct is open towards the enclosed space and is formed as a recess in the first mould part extending along a section of a periphery of the first mould part and/or a formed as a recess in the second mould part and extending along a section of the periphery of the first mould part. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 23)
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21. A mould for vacuum assisted resin transfer moulding of a fibre reinforced laminated a structure which is a laminated wind turbine rotor blade, comprising:
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a first mould part defines a negative impression of the wind turbine blade having an elongated shape with a leading edge and a trailing edge, the first mould part structurally stable and forms a support for fibre reinforcement layers of the wind turbine blade; a second mould part connectable to the first mould part in order to close the mould and together with the first mould part defines an enclosed space to be evacuated; and a plurality of flow ducts that guides a liquid polymer, each flow duct is open towards the enclosed space and is formed as a recess in the first mould part extending along a section of a periphery of the first mould part and/or a formed as a recess in the second mould part and extending along a section of the periphery of the first mould part, wherein the plurality of flow ducts includes a first flow duct and a second flow duct, wherein the first flow duct is in the first mould part and/or in the second mould part at a location where the leading edge is to be formed; and wherein the second flow duct is in the first mould part and/or in the second mould part at a location where the trailing edge is to be formed. - View Dependent Claims (22, 25, 26, 27)
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24. A method for vacuum assisted resin transfer moulding of a fibre reinforced laminated structure, comprising:
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providing a for vacuum assisted resin transfer moulding of a fibre reinforced laminated structure, comprising; a first mould part defines a negative impression of the fibre reinforced laminated structure, the first mould part structurally stable and forms a support for fibre reinforcement layers of the fibre reinforced laminated structure, a second mould part connectable to the first mould part in order to close the mould and together with the first mould part defines an enclosed space to be evacuated, and a flow duct that guides a liquid polymer, the flow duct is open towards the enclosed space and is formed as a recess in the first mould part extending along a section of a periphery of the first mould part and/or a formed as a recess in the second mould part and extending along a section of the periphery of the first mould part; keeping the flow duct free of any material until the resin is injected; and injecting the resin such that the resin runs in the flow duct from an inlet port to a far end of the mould.
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Specification