Method of manufacturing a gun barrel provided with a lining
AssigneeSociete Europeenne de Propulsion
InventorsMichel Vives, Pierre Taveau, Georges Habarou, Francois Bognandi
Life of this patent
Estimating the term…
Abstract
A gun barrel lining made of composite material having refractory fiber reinforcement and a ceramic matrix, the fiber reinforcement comprises a cylindrical inner portion constituted by a three-dimensional fiber texture and a cylindrical outer portion surrounding the inner portion and having the same axis, the outer portion being constituted by a strip wound around the inner portion, and the inner and outer portions being codensified by the ceramic matrix.
Claims10
A method of manufacturing a gun barrel lining in a composite material by forming a cylindrical fibrous reinforcement and densifying the reinforcement by a ceramic matrix, said method comprising the steps of:
- providing a first fibrous texture;
- winding said first fibrous texture in superposed layers and binding said superposed layers by causing fibers to extend transversely through said superposed layers, to form a cylindrical and three-dimensional inner portion of said reinforcement;
- providing a second fibrous texture made of refractory fibers;
- winding said second fibrous texture onto said inner portion of said reinforcement, to form a cylindrical outer portion of said reinforcement;
- said inner portion of said reinforcement is made by winding and bonding together layers of fibers of a precursor of refractory fibers and the precursor is transformed into refractory fibers by heat treatment prior to winding of the second texture;
- and
- simultaneously densifying said inner portion of said reinforcement and said outer portion of said reinforcement with a ceramic matrix.
Dependencies are inferred from the claim text.