Composite pipe
AssigneeMagma Global Limited
InventorsDaniel HOLMAN, Josh RICHARDSON, Thomas EPSZTEIN
Life of this patent
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Abstract
A composite pipe which extends longitudinally and has an internal surface and an external surface, a composite overlay being disposed around and bonded to a portion of the external surface, the composite pipe and the composite overlay including a composite material having a thermoplastic polymer matrix and fibres embedded in the thermoplastic polymer matrix, the embedded fibres in the thermoplastic polymer matrix of the composite pipe include continuous fibres, and embedded fibres embedded in the thermoplastic polymer matrix of the composite overlay include short fibres, which are fibres having a length from 0.05 mm to 10 mm.
Claims29
A composite pipe which extends longitudinally and has an internal surface and an external surface, a composite overlay being disposed around and bonded to a portion of the external surface, wherein the composite pipe and the composite overlay comprise a composite material having a thermoplastic polymer matrix and fibres embedded in the thermoplastic polymer matrix, wherein the fibres embedded in the thermoplastic polymer matrix of the composite pipe comprise continuous fibres, and wherein the fibres embedded in the thermoplastic polymer matrix of the composite overlay comprise short fibres, which are fibres having a length from 0.05 mm to 10 mm.
A method of manufacturing a composite pipe which extends longitudinally and has an internal surface and an external surface, a composite overlay being disposed around and bonded to a portion of the external surface, the method comprising:
- a. providing a composite pipe;
- b. winding a first layer of composite tape around and bonding it to the portion of the external surface;
- and
- c. winding one or more additional layers of composite tape around and bonding each such additional layer to the immediately preceding layer of composite tape until a desired overlay thickness has been achieved;
- wherein the composite pipe and the composite tape comprise a composite material having a thermoplastic polymer matrix and fibres embedded in the thermoplastic polymer matrix, wherein the fibres embedded in the thermoplastic polymer matrix of the composite pipe comprise continuous fibres, and wherein the fibres embedded in the thermoplastic polymer matrix of the composite tape comprise short fibres, which are fibres having a length from 0.05 mm to 10 mm.
Dependencies are inferred from the claim text.