Knowledge of Friction Plates
The mutual friction between the disc brake pads and the brake disc forms a friction pair, generating a braking torque and converting the kinetic energy of the vehicle into heat energy. When braking, the weight of the vehicle shifts to the front axle, and the front wheel brakes inevitably bear the braking force.
Therefore, the front brake pads and the brake disc are the components in the vehicle that bear relatively high pressure. They are vulnerable to heavy loads of high temperature, mechanical and chemical factors. Thus, the performance of a set of brake pads must meet three requirements: safety, comfort, and service life. The main factors for evaluating brake pads are as follows:
Friction coefficient - For good brake pads, the friction coefficient must be high enough and remain stable under various driving conditions.
The dynamic friction coefficient of the brake pads determines the magnitude of the braking force and also plays a decisive role in the braking balance and the stability of the vehicle's control during braking. A decrease in the friction coefficient will cause considerable changes in the braking performance and may lead to a significant increase in the braking distance.
Therefore, the friction coefficient of the brake pads must be ensured to remain stable under all driving conditions (speed, temperature, humidity, and pressure) and throughout the entire service life. In other words, for good brake pads, the friction coefficient must be high enough and remain stable under various driving conditions.
