Ceramic brake pads are the most popular brake pads at present. Ceramic brake pads have stronger braking performance and are more stable, so they are very popular and welcomed by car owners. However, the principle of ceramic brake pads is what many owners do not know. Hereinafter, the structure of the ceramic brake pad will be explained by the leopard brake pad.
Structurally, the brake pads are generally composed of a steel plate, a heat insulating layer and a friction block. The steel plate is painted to prevent rust. The heat insulation layer is composed of non-heat-conducting materials. Because the brake friction generates a lot of heat energy, if the heat energy is transmitted to the brake caliper and finally to the oil circuit in the brake cylinder, the brake oil temperature rises and the boiling bubbles are generated. A gas resistance is formed in the brake oil passage, thereby causing a decrease in the braking force of the vehicle. The friction block is composed of a friction material and an adhesive. When the vehicle brakes, the friction block and the brake disk are pressed to generate friction, and the braking force is generated to achieve the braking purpose.
From the types of brake pads, it can be divided into two types: disc and drum. From the material, the brake pads can be divided into asbestos, semi-metal and non-asbestos.
The most important feature of asbestos-type asbestos brake pads is low cost and light weight. However, the friction material of asbestos brake pads will release nano-scale heavy metal particles, which is an important source of air pollution, and will cause lung cancer after being inhaled into the lungs. Therefore, the national mandatory regulations It is not allowed to produce asbestos brake pads, which are currently extinct on the market.
Semi-metal semi-metal hybrid brake pads are widely used in automobiles due to their low price and durability. They have high temperature control capability and can withstand higher braking temperatures. However, due to its strong thermal conductivity using a semi-metallic hybrid material, the temperature generated by the friction is eventually transmitted to the brake oil circuit, causing the brake fluid to boil and reduce the braking effect. At the same time, due to the material, the semi-metal brake pad will have a relatively loud noise during braking, and the damage to the brake disc is large.
Ceramic brake pads use mineral fiber, aramid fiber and ceramic fiber (because steel fiber will corrode, produce noise and dust, so can not meet the requirements of ceramic formula) and other materials, lighter than other brake pads, ceramic brake pads The noise is smaller, cleaner and quieter, and it does not wear the dual parts while providing excellent braking performance.