US 6,802,403 B2 · Disk-brake disk

Abstract

A disk brake disk comprises a braking band for cooperating with brake calipers in order to exert a braking effect on a vehicle. The braking band of one embodiment comprises a shaped body which extends about an axis of symmetry and is defined laterally by braking surfaces, and the shaped body is made of a composite material which, according to one embodiment, is produced by causing a mixture comprising bundles of filaments 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. According to this embodiment, the shaped body has a plurality of reinforcing fibers incorporated in the shaped body and extend around the shape fo the shaped body in a manner such as to deter the propagation of cracks.

Claims17

Dependent claims

A disk brake disk comprising:

a braking band for cooperating with brake calipers in order to exert a braking effect on a vehicle, the braking band including:
a shaped body which extends about an axis of symmetry and is defined laterally by braking surfaces, wherein said shaped body is made of a composite material, said composite material including:
an organic binder;
a mixture of bundles of filaments arranged randomly and being no greater than 30 mm in length;
and
a plurality of reinforcing fibers extending around said shaped body in a manner such that crack propagation is deterred, wherein:
said binder is made porous by pyrolysis,
the mixture including the reinforcing fibers has a structure obtained by causing the mixture to react with molten silicon, and said bundles of filaments and said reinforcing fibers substantially include carbon.

5 more elements

Dependencies are inferred from the claim text.

Disk-brake disk

Life of this patent

Disk-brake disk

Life of this patent

Abstract

Claims17