Several Basic Requirements for Checking the Reliability of Friction Lining

The knowledge about the friction plate, we have introduced it in the above articles, and I believe we have a general understanding of it, so what are the basic requirements for checking the reliability of the friction plate?

1. Suitable coefficient of friction. The coefficient of friction is the most basic parameter of the friction material, which determines the basicbrake padsbraking torque. The national standard strictly requires manufacturers to indicate the friction coefficient on the packaging. The friction coefficient must be appropriate. If it is too high, it will cause the wheels to lock up, lose control of the direction and burn the pads during braking. If it is too low, the braking distance will be too long. For example, the friction coefficient of Tengxiang's safe and environmentally friendly mechanical friction pad brake pads is 0.40.

2. Reliable security. The brake pads will generate instantaneous high temperature during braking, especially during high-speed driving or emergency braking. In the high temperature state, the friction coefficient of the friction plate will decrease, which is called thermal decay. The level of thermal decay determines the safety of high temperature and emergency braking.

3. Satisfactory comfort. Comfort is a direct manifestation of friction performance, including braking feeling, noise, dust, smoke, odor, etc. With the increase of private cars and the improvement of people's living standards, comfort has increasingly become an important indicator of friction plates under the basic premise of meeting safety.

In the comfort index, car owners are often most concerned about the noise of the brake pads. In fact, noise is also the most difficult problem for all friction material manufacturers to solve. Noise is caused by abnormal friction between the friction plate and the friction disc. The causes are very complicated. Braking force, brake disc temperature, vehicle speed and weather conditions may all be the causes of noise.

In addition, the causes of noise in the three different stages of brake initiation, brake implementation and brake release are different. If the noise frequency is between 0 and 500Hz, it will not be felt in the car, but if it exceeds 1500Hz, the owner can clearly feel the braking noise. 4. Reasonable life span. Service life is a product indicator of general concern. Usually the brake pads can guarantee a service life of 30000 kilometers. The large-particle graphite and brass used in materials like Tengxiang brake pads can also reduce the wear on the brake discs.

In order to meet the needs of different users,brake padsproducts are also diversifying. For example, Bosch provides two series of products, "safety" and "comfort", to meet different customer needs. Among them, the Tengxiang "safety" series provides a better cost performance while meeting the safety and basic comfort requirements of the majority of car owners.

Brake pads and brake shoes are vulnerable parts and safety parts and need to be replaced regularly. When the thickness of the brake pads is worn to a certain extent, it must be replaced. At this time, the electronic or mechanical alarm of the vehicle will remind the owner to replace it through an alarm light or noise. Generally speaking, the brake pads or brake shoes in the same axle direction have the same degree of wear and need to be replaced at the same time.