Friction is the brake in the work, it is bound to produce a work, brake brake lining and even parts in the friction process, avoid the interaction will cause the loss of surface material and transfer, which produces wear.
How to increase the gap of the brake suit until the lining and drum can no longer be used, this is the service life of the brake pair.
Considering from the safety and reliability of the brake, hope brake vice friction coefficient is higher, especially at high temperature can still maintain a higher coefficient of friction, which has enough braking friction torque, but in general the higher friction coefficient, the greater the friction generated by shear resistance, the surface layer of shear stress is also big, therefore the friction surface material becomes serious loss or damage of the greater the wear, the shorter service life also.
So in the process of friction and wear are friction may be relevant and two aspects of contradiction, the different working conditions and requirements, focusing on the different, but for the brake friction pair, should be, a certain amount of friction resistance and does not cause excessive wear, brake pair of wear and friction in the process of friction in the form of state, and vary with different conditions and the friction pair material.
