Brake pads are an important component of automotive braking systems, and their structural design directly affects braking performance and safety. This article will briefly introduce the structure of brake pads and the functions of each part.
Brake pads typically consist of two main components: friction material and substrate.
Friction materials are a crucial part of brake pads, responsible for generating friction to achieve vehicle braking. It is usually made of composite materials, including friction agents, polymer resins, and metal fibers. Friction materials should have good friction performance and thermal stability to ensure that brakes can effectively dissipate energy and maintain their performance at high temperatures.
The substrate is the supporting structure of the brake pad, providing stability and strength for the brake pad. Common substrate materials include steel plates and composite materials, which have sufficient stiffness and durability. The substrate also includes the mounting surface of the brake pads for contact with the brake discs of the braking system.
Brake pads are usually designed with a layered structure. On the surface of friction materials, there is often a wear indicator layer used to display the degree of wear of brake pads. This layer may contain colors or metal particles, which will be exposed when the brake pads are worn to the point where they need to be replaced.
In addition, there are some other design elements in the brake pads. For example, the edges of brake pads typically have grooves or holes to increase their heat dissipation capacity and reduce the temperature during the braking process. In addition, some brake pads may also have noise damping materials to reduce the harsh noise generated during friction.
In short, the structural design of brake pads is very important, which directly affects the performance and safety of the braking system. By selecting friction materials and substrates reasonably, optimizing the layered structure, and adding additional design elements, the durability, thermal performance, and braking effect of brake pads can be improved. The maintenance and regular inspection of brake pads are also important steps to ensure the normal operation of the brake system and ensure driving safety.