Materials and classification of brake pads

Materials and classification of brake pads

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Materials of  brake pads.

The main materials of automobile brake pads are metal-based materials and friction materials. The structure is generally composed of steel plates, adhesive insulation layers and friction blocks.

Metal-based materials usually include steel, copper, aluminum, etc., which play a supporting and heat-conducting role. Among them, the insulation layer is composed of materials that do not transfer heat, and the purpose is heat insulation. The friction block is composed of friction materials and adhesives. The friction material is the main part of the brake pad. It needs to have good wear resistance, heat resistance and friction reduction to provide sufficient friction during braking. When braking, it is squeezed on the brake disc or brake drum to produce friction, thereby achieving the purpose of vehicle deceleration and braking. Due to friction, the friction block will gradually be worn. Generally speaking, the lower the cost of the brake pad, the faster it will wear. At present, the friction materials in automobile brake pads are usually semi-metallic or ceramic materials, which have high wear resistance and heat resistance. In addition, some brake pads will also add fiber materials to improve strength and heat resistance.