Frequently asked questions about brake pads are worth collecting (2)
11. Brake pads can be guaranteed for 30,000 to 40,000 kilometers. Is this kind of matching standard for the original car?
Answer: It is very simple to achieve the service life of the brake pads alone. It is not difficult to achieve 100,000 kilometers for you by adding more abrasives. The formula of the original car will not have any negative impact on the disk, noise, etc. while ensuring a long life. So, you can judge noise and disc wear, and comfort is also a linked specification.
12. Is ceramic fiber added to the formula a ceramic formula?
Answer: No. Ceramic fiber is just one of the commonly used fibers for brake pads. There are also metal fibers, mineral fibers, wood fibers, aramid fibers, etc. Their function is to connect various fillers, just like the mud walls in rural areas. Like straw. It is true that many brands have borrowed the concept of ceramic fiber to emulate the past. The pure ceramic formula is completely two concepts. If you want to know the details of the ceramic formula, you can search on Baidu "The domestic brake pad industry is developing rapidly but the mastery of the core technology is worrying". This article contains a detailed introduction to the ceramic formula.
13. What is the reason for the noise of the brake pads?
Answer: Noise is mainly frequency resonance. If the natural frequencies of two materials or components are the same, resonance will easily occur. It is very simple to solve the noise of the brake pad alone, it is very simple to solve the service life alone, and it is also very simple to solve the problem of not hurting the disc alone. The difficulty of brake pads is to solve all 9 problems at the same time. Noise is just a problem that we can easily find. There are many factors that cause noise. The entire brake assembly system is the cause of noise. Improper selection of brake discs and serious disc wear can cause noise. In many cases, everyone has wronged the brake pads. During the research and development process, we don’t have any skills to solve the noise problem. We rely on a large amount of test comparison and screening. Today, we have been supporting more than 20 automobile factories such as Volkswagen and Mercedes-Benz for 22 years, and only matured 1~2 formulas. . Therefore, a good formula is not obtained by patting the head, but by screening.
14. Why are there grooves on some discs? Are the brake pads hard?
Answer: There are national standards for the hardness of brake pads, which are basically between 35 and 70 Shore hardness. This hardness is not the main cause of wear on your brake discs. The wear-increasing agent in the brake pads is the main component of the wear disc. Among all the three formulas, the most abrasive to the disk is not the semi-metal with high metal content that we often see, but the low metal with little metal content, that is, the kind with a lot of dust and large particles on the outside, ceramic minimal wear and tear. Then why do you see that the disks of Mercedes-Benz and BMW are very flat? The reason is that the brake pads used in the original car have a very fine, uniform, and high-purity abrasive agent, so it wears heavily on the disc, but it is very uniform, similar to fine sandpaper polishing. And everyone sees the brake pads that are ground with grooves because the abrasives in them are of different sizes, and the purity is soft or hard, just like grinding a disc with a coarse grinding wheel, the surface of the disc will naturally be uneven. And these will greatly reduce the cost, but the effect is not the same. Therefore, the soft and hard brake pads are not the cause of serious wear of the disc, but the low-cost grinding agent is the culprit.
15. The brake pads I bought for 70 yuan are also very effective, right? Good braking effect
Answer: It is very simple to realize the braking ability of the brake pads. What it needs is to maintain the stability of the brakes under high temperature, emergency, high speed, and rain conditions. This is the most difficult thing. The original car requires more indicators such as comfort, noise, environmental protection, etc., which makes the brake pads even more difficult. Therefore, your simple normal driving feels good, but it does not mean that its safety performance can reach the effect of the brake pads on your original car in various emergency situations. To be honest, the original car of your private car only needs to change a set of brake pads after 4 or 5 years of running. If it is only 70 yuan as you said, do you think this profit can support the brake pad factory? Of course not, what can't be done? you know.
