Process for the production of a braking band with venting passages and braking band obtained with said process

摘要

The present invention relates to a process for the production of a braking band for a brake disk with venting passages and to a braking band which can be produced by the process. The process comprises the following steps: moulding a core (200) of the braking band in a suitable mould (1), moulding two covers (8) onto the core in a further suitable mould (101) so as to form a semi-finished product having a "sandwich" structure, firing the semi-finished product so as to produce a predetermined porosity of the covers, firing the semi-finished product further, in the presence of silicon, at a temperature such as substantially to bring about fusion of the silicon and its infiltration into the covers.