Copper, brass and bronze became materials of general use because of their contribution to the performance and wear at high temperature and also because of their good NVH properties, and where in the origin of RIMSA as supplier for the friction industry, providing high quality recycled chips of brass and bronze.
Case studies / Friction
Where are we coming from? From Asbestos-based to NAO Copper-free
A joined effort among manufacturers, regulatory organizations and the automotive industry has brought a noticeable evolution on the composition of the friction materials
All machine in movement needs to be stopped at some moment. The brake is responsible to turn this kinetic energy into heat and release it through the interface.
This is the everlasting basis of the friction industry. Actually, during a normal braking, the disc is responsible to dissipate around 80 % of the heat generated by friction. The temperature can raise up to 600-700 ºC in rough conditions. As a result of the energy involved in this process, tribo-chemical reactions and erosion always take place.
The chemical composition of the brake PAD then, is directly related with the performance of the whole brake system.
Every time you stop your vehicle, a small amount of material is released in form of PM10 and PM2,5, small enough to be caught in air turbulence and easily enter human airways.
Depending on their composition, can be quite harmful to wildlife as they might contain metals such as copper, chromium, lead, antimony and metal oxides.
Considering that around 21% traffic-related PM10 emissions come from brake wear, automotive industry, raw material manufacturers and regulatory organizations have a shared responsibility to follow up dust emissions released during braking, and come up with innovative solutions to overcome this environmental threat.
