1. The friction coefficient of the brake pad is not as large as possible.
The friction coefficient of the brake pad is designed according to the weight inertia of the car itself. It considers several technical indicators of speed, inertia, braking distance and comfort. The simple understanding of the friction coefficient is the braking ability, and its stability is a key indicator of the brake pad.
2, long service life
Extend the life as much as possible and reduce the frequency of replacement.
3, no noise
Whether it is emergency braking or normal braking, light braking or continuous braking, no harsh noise can be produced.
5, thermal expansion
Continuous braking and emergency braking can cause high temperatures. According to the physical principle of thermal expansion and contraction, the brake pads will also expand, but in the demand, its expansion must be kept in a small range, and the expansion is too large, which will lead to the film and the dual The gap between them is too small, so that the sheet and the disc remain in the braking state during the normal driving process, and eventually the oil temperature in the brake cylinder rises and the oil leaks, and the brake fails.
6, thermal decline
The friction coefficient of the brake pad is required to be hot and cold, sweet and sour, and the sample can be used. The material must be adapted to a wide temperature range to ensure that it cannot be reduced under various conditions.
It reflects that when we brake with a certain braking force, the brake pads should not be too soft or too hard, too soft, which will affect the reaction time of the brake pads; it is too hard, and the disk is easy to produce noise. According to the corresponding standard, its compression is between 0.1~0.2mm.
8, do not hurt the disk
9, environmental protection