| 摘要 |
A disk-brake disk (1) which is unusually safe, comprises a braking band (3) for cooperating with brake calipers in order to exert a braking effect on a vehicle, the braking band (3) comprising a shaped body (4) which extends about an axis of symmetry (X-X) and is defined laterally by braking surfaces (5, 6), the body (4) being made of composite material which can be produced by causing a mixture comprising bundles of filaments (7) constituted substantially by carbon, arranged randomly and having dimensions no greater than 30 mm, to interact with silicon at a temperature high enough to bring about fusion of the silicon. The disk is characterized in that a plurality of reinforcing fibres are incorporated in the shaped body (4) and extend around the shape of the body (4) in a manner such as to prevent the propagation of cracks.
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