Common Problems of Brake Friction Plates (3)
Why does braking hysteresis occur?
The possible reasons for the phenomenon of brake hysteresis are: failure of the brake return spring, improper clearance between the friction plate and the brake disc or too tight assembly size, unqualified thermal expansion performance of the friction plate, and poor return of the parking brake.
Why is there smoke when braking?
The friction plate contains about 20% organic matter, which will decompose and emit smoke when the temperature is too high, and a layer of oily substance will be formed on the surface of the friction plate, which will affect the braking effect. The possible reasons for this phenomenon are: frequent braking when going downhill, causing the temperature to be too high and smoke; the organic content in the formula of the friction plate is unqualified and exceeds the standard.
Why does the back plate of the friction plate fall off?
There are two situations for the back plate of the friction plate to fall off. One is that a crack occurs between the back plate and the friction material; the other is that the friction material itself cracks. The possible reasons are: poor pre-treatment process of the back plate, poor stability of the friction material, unqualified pressing process, poor quality of the adhesive, excessive use temperature, incorrect installation, impact and knocking.
What is the function of the grooves in the brake pads?
The function of the grooves in the friction plate is to discharge the gas, reduce the noise and change the natural frequency of the product, discharge the wear debris, and enhance the adhesion between the friction material and the back plate.
