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класификация
Вспирачен дискis divided into solid brake disc and ventilation disc according to the structure. Solid brake disc, is a metal disc for braking, and no special structure. The ventilation disc is divided into two forms, namely the marking disc and the opening disc. The role of the two processing modes is to improve the cooling performance of the brake disc, reduce its thermal attenuation degree, and provide better braking capacity.
Brake discs are divided into carbon fiber ceramic brake discs and metal brake discs according to the different materials. However, due to the high manufacturing cost of carbon fiber ceramic brake discs and poor braking force at low temperatures, although it has excellent thermal attenuation characteristics, it is still not used by most vehicles. In order to increase the resistance to heat attenuation, there are also manufacturers to metal brake disc carbon fiber treatment, so that its ability to improve, while avoiding the low temperature performance of carbon fiber ceramic material is not good
предимства
1, disc brake heat dissipation is better than drum brake, in the continuous pedal brake will not cause brake recession and brake failure phenomenon;
2. The thermal expansion of the brake disc along the thickness direction is very small, and the change of the size after heating does not increase the stroke of the brake pedal;
3. The disc brake system responds quickly and can brake with high frequency, so it is more in line with the needs of ABS system;
4, дискова спирачкаwithout drum brake friction assist effect, so the brake force of the left and right wheels is more average;
5, because of the better drainage of the brake disc, it can reduce the situation of bad braking caused by water or silt;
6. Compared with drum brake, disc brake has simple structure, easy to realize automatic clearance adjustment, and easy to maintain.
7, in the case of the same output brake torque, the size and mass of the drum brake is relatively small.
disadvantages
1, because there is no drum brake automatic brake, the disc brake brake force is lower than the drum brake;
2. Зоната на триене междудискова спирачка pad and the brake disc is smaller than that of the drum brake, so that the brake force is smaller;
3. In order to improve the disadvantages of the disc brake, it is necessary to step on a larger force or oil pressure. Therefore, a larger diameter brake disc must be used, or to improve the oil pressure of the brake system, in order to improve the power of the brake;
4, hand brake device is not easy to install, some rear wheel disc brake models for this purpose and add a group of drum brake hand brake mechanism.
5, to make the wear of the piece is larger, resulting in a high replacement frequency.
6, high maintenance cost.
Fault judgment
How you feel when you brake is very important. Normal braking system when braking, will feel the pedal firm, the car should immediately smooth in a straight line to stop. When the vehicle appears serious jitter or oblique to the side, or feel the pedal response is not sensitive, soft, it should cause the attention of the owner. Some screeches are caused by the friction plate interacting with the spacer on its back. Small squeals at low speeds without using the brakes are caused by worn brake discs or edges. In addition, if the brake temperature is too high, more than 400 degrees will appear smoke and smell, and will obviously feel the brake soft, mostly caused by the brake system for a long time continuous use. And the brake method produced by using the material of this product will be different, so the effect will be much easier to use than other brake software.
