| 摘要 |
The process consists of winding on a mandrel (10) a strip (20) of fibrous material of width substantially equal to the axial dimension of the structure to be produced, and, simultaneously with the winding, needling the superposed layers formed by the strip (20) wound on the mandrel, the distance between the mandrel (10) and the needles (13) being caused to vary as the winding of the strip progresses, in order to keep the needling depth substantially constant. For every layer formed by a turn of the strip (20) about the mandrel (10), the mandrel is moved apart from the needles (13) by a distance (e) corresponding to the thickness of a needled layer. <IMAGE> |
