Frequently Asked Questions About Brake Pads

       1. Is adding ceramic fiber to the formula a ceramic formula?

  Ceramic-free fiber is just one of the commonly used fibers for brake pads, including metal fiber, mineral fiber, wood fiber, aramid fiber, etc. Their function is to connect various fillers, just like adding straw to a mud wall in the countryside.

  2. Why are the brake pads noisy?

  Noise is mainly frequency resonance. Resonance is likely to occur when the natural frequencies of two materials or components are the same. It is easy to solve the problems of noise, service life and not damaging the disc. There are many factors that cause noise. The entire brake assembly system is the cause of noise. Improper selection of brake discs will cause serious brake disc wear and noise. In many cases, people misunderstand brake pads.

  3. I think if there is more metal content, it will be very hard. If it is very hard, there must be a lot of noise.

Incorrect. Many of these claims are made by auto repair shops and are unscientific. The original American cars were mainly semi-metallic and contained a lot of metal. Have you heard a lot of noise? Noise is not directly related to hardness and softness. Grinding discs and noise only indicate that the product formula is immature and has nothing to do with the metal content. In fact, metal materials are mainly used in the formulation to connect fillers and conduct heat. At the same time, its hardness is similar to that of the valve disc, and will not cause major wear to the valve disc. It's not that the metal you see can really grind the brake disc and improve the braking ability, but the ground filler that you can't see is harder than the brake disc. They are actually emery, which is the same as the sandpaper and grinding wheels you often see.

  4. Why do some plates have grooves? Are the brake pads hard?

  There is a national standard for the hardness of brake pads, which is basically between 35 and 70 Shore hardness. This hardness is not the main cause of brake disc wear. The wear additive in the brake pad is the main component of the wear plate. Hard brake pads and soft brake pads are not the cause of serious brake disc wear. The culprit is low-cost wear-resistant additives.

  5. What is the problem with the short service life of the brake pads? Why do inferior products have a long braking distance during emergency braking?

  Like all objects, the strength of the intermolecular connection of the material organization will decrease a lot at high temperatures. The principle of braking is to convert kinetic energy into heat through friction to achieve braking (energy balance theory). Therefore, a large amount of heat generated by the friction between the brake pad and the brake disc will accumulate on the surface of the friction material of the brake pad. In order to realize the braking of the original car's brake pads under such high temperature conditions, the principle of braking is to convert kinetic energy into heat energy through friction. In order to maintain sufficient strength of the brake pads, materials such as high-temperature resistant resin, high-purity graphite, and high-purity barium sulfate must be selected. These materials are like choosing only the same size of coal from a carbon car, and the cost will rise substantially. As for low-quality brake pads, they will not use such good materials, so they cannot guarantee their stability at high temperatures. As the vehicle speed increases, their heat increases, the temperature increases, and the strength of the connecting rod decreases, thereby reducing the braking ability and extending the braking distance. Therefore, a brake pad that feels good when you are driving in the city at a speed of 20-60 km/h does not mean that you have the same stable braking distance performance at high speeds. When the connection strength of the molecular chain decreases at high temperatures, its wear accelerates. This is also the reason why the general brand brake pads have a short service life in mountainous areas or under frequent emergency braking situations.