What are the general materials for brake pads?
2 Answers
Brake pad materials are generally asbestos, semi-metallic, low-metallic, NAO formulation, ceramic, and high-carbon fiber. The following are the components of brake pads: 1. Steel plate. 2. Bonded heat insulation layer made of non-heat-conducting materials. 3. Friction block composed of friction materials and adhesives. Below is extended information on the main functions of the braking system: 1. Ensuring the vehicle can decelerate and stop as required by the driver during operation. 2. Ensuring reliable parking of the vehicle. 3. Safeguarding the safety of the vehicle and the driver. 4. Transmitting the generated braking effect to the wheel brake through the brake pump and brake lines.
There are quite a few common brake pad materials I've come across. Semi-metallic ones are the most prevalent, mainly made from compressed metal powders like iron, copper, or graphite. They're affordable and highly wear-resistant, offering decent braking performance while driving. However, the downside is they tend to generate noise and produce more dust. Ceramic materials are quite popular now, especially in sports cars or electric vehicles like Teslas. Composed of ceramic fibers and silicon compounds, they maintain stable friction coefficients without fading, have excellent heat management to prevent overheating, and provide consistent braking distance control. The key advantage is they produce minimal dust, keeping things clean, though they're significantly more expensive at over a thousand yuan per set. Organic materials, such as those made from asbestos or Kevlar fibers, are quieter and more environmentally friendly, causing less wear to brake discs, making them suitable for urban stop-and-go traffic. However, their lifespan is shorter, possibly requiring replacement every year. Fully metallic pads are used in trucks or heavy-duty vehicles—they're impact-resistant but noisy. I think the choice depends on your driving style; for instance, ceramic pads are ideal for frequent highway driving, offering worry-free durability.
