D1317 Brake Pads

The role of the  pbr brake pads

The  pbr brake pads of the automobile are composed of various materials, wherein the steel back has sufficient strength and can be matched and installed; the friction block is mainly composed of a bonding layer and a friction material; the accessory mainly includes a silencer, a circlip, an alarm or an alarm. line. The silencer mainly has the functions of heat insulation, shock absorption and noise reduction; the circlip is matched and installed, and is connected with the piston; the function of the alarm and the alarm line is to prompt you to replace the brake pad when the wear reaches the limit.

The main structure of the  pbr brake pads of a car includes a steel back, a friction block, an attachment, and the like. Each structure has its own role, which also includes some industrial characteristics. The process of the product generally has painting, slotting chamfering, ablation and the like. The painting is mainly for aesthetics and anti-corrosion; the groove chamfering is used to facilitate the drainage of dust on the surface of the brake pad and to optimize noise and jitter; the ablation process plays an important role in reducing the running-in period and improving the initial braking force.

 Pbr brake pad parameters

When it comes to  pbr brake pads, the first thing to say is the coefficient of friction. The friction coefficient is affected by many external factors, and temperature is an important factor affecting the friction coefficient. During the friction process, the friction coefficient begins to decrease due to the rapid increase of temperature. When the temperature reaches the decomposition temperature range of resin and rubber, the friction coefficient will suddenly decrease. This phenomenon is called “thermal decay” and a severe “thermal decay” can cause brake failure.

The second is the shear force of the  pbr brake pads. In the friction work, in addition to the high temperature, the brake pads are subject to large pressure and shear forces. Therefore, it is required that the brake pad must have certain impact strength, compressive strength, and shear strength, and thermal expansion and thermal cracking do not occur at high temperatures.

Pbr brake pad abnormal sound solution

If we hear the screams caused by metal friction, the first thing to look at is whether the  pbr brake pads are running out (the brake pads' wear alarms will squeak with the brake discs). If it is a new piece or a brake pad that has not yet been replaced, check to see if any foreign objects are caught between the brake disc and the brake pad. If you hear a muffled sound, then most of the problems caused by the brake caliper, such as the wear of the movable pin, the spring piece off. If it is the sound of silk, then there are more possible reasons. There may be problems with the brake calipers, brake discs and brake pads.