There are five types of automotive brake pad materials: asbestos, metal, ceramic, and high-carbon (titanium) fiber. Automotive brake pads generally consist of a steel plate, an adhesive insulation layer, and a friction block. The steel plate is coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure quality by detecting temperature distribution. Below is an introduction to these five types of brake pads: 1. Asbestos material: Low cost and lightweight, widely used in trucks and construction vehicles. 2. Semi-metallic material: This is the default material for brake pads in all vehicle models upon factory release. These brake pads have a relatively low friction coefficient, typically around 0.38, and a shorter lifespan. Some manufacturers produce these pads with a higher friction coefficient, though this can lead to noise issues. 3. Metal material: Metal materials include iron and copper. One type is commonly referred to as wear-resistant iron, appearing very dark with no visible spots. Another type contains copper powder, where brass or copper metal blocks or small particles can be seen on the surface. 4. Ceramic brake pads: Moderate density, high-temperature resistance, corrosion resistance, and significantly lower noise compared to metal materials. A key feature is minimal dust production. Genuine ceramic brake pads contain aramid fibers, offering far superior lifespan and performance compared to the above-mentioned types. 5. High-carbon (titanium) fiber: Used in high-end vehicles and relatively rare in the market. Carbon (titanium) fiber is an upgraded version of ceramic pads. They are lightweight, high-strength, have a small thermal expansion coefficient, good thermal conductivity, and heat resistance. Carbon fiber provides stable friction curves, minimal thermal impact on friction surfaces, and wear resistance over 1.5 times that of standard ceramic pads.
