"Now the brake pads brands are too much." This is the frequency I heard in the market is very high sentence." You do not lack the product, the lack of identifying product ability. "
First, The brake pad is the ceramic formula if the formula added ceramic fiber ?
No. Ceramic fiber is only one of the commonly used fibers in the brake pads, as well as metal fibers, mineral fibers, wood fibers, aramid fibers and so on, their role is to connect a variety of fillers, like when the rural mud wall to add Straw.
Second, how the brake pads noise is going on?
Noise is mainly the frequency of resonance, if the two materials or parts of the inherent frequency of the same, it is easy to produce resonance. brake pads alone to solve the noise is very simple, a separate solution to the service life is very simple, alone is not easy to solve the disk is not easy. Noise generated a lot of factors, the entire brake assembly system is the cause of noise, brake disc selection improper, disk wear and so serious will cause noise, in many cases, we have wronged the brake pads.
Third, the feeling of metal content on the hard, hard certainly noisy, and some garage is so to say, right?
Wrong Many of these claims are auto repair factory, not scientific. The United States car car is mainly semi-metal formula, all contain a lot of metal, you heard a lot of noise? Noise and soft and hard is not directly related to the disc and noise is only that product formulation is not mature, and the number of metal has nothing to do.
In fact, the metal material in the formula is mainly from the role of connecting filler and thermal conductivity, at the same time, their own hardness and disk is not much difference, will not cause large wear on the disk, the real disc and increase the braking capacity is not you see To the metal, but you can not see those hardness hardness than the brake disc is also harder filler filler, they are actually emery, and your common sandpaper, grinding wheel belongs to the same material.
Four, why some disk grinding a road groove it? Is not the brakes hard?
Brake plate hardness of the country has a standard, the basic Shore hardness between 35 to 70. This hardness is not the main cause of your brake disc wear. Brake in the grinding agent is the main component of wear plate. brake pads are not caused by serious hard disk wear and tear reasons, the culprit is a low cost of grinding agent.
Five, I bought 70 dollars of the brake effect is also very good ? Brake effect is good ?
brake pads to achieve the braking capacity is very simple. It is necessary in the high temperature, emergency, high speed, rain state still have to maintain the stability of the brakes, this is difficult. And the original car, but also requires comfort, noise, environmental protection and so more indicators, which makes the brakes difficult.
So, your simple normal driving feeling good, does not mean you in a variety of emergency situations, its safety performance to achieve the effect of your original car brake pads. To tell the truth, your car the original car running 4,5 years for a set of brake pads, if you say only 70 dollars, do you think this profit can feed the brake pads factory? Of course not, can not do? You know.
Six, brakes as long as no noise, stop the car is not on the line? Is it so mysterious?
The above said, alone to solve the noise is very simple. But the main function of the brake pads is not a noise problem, but a safe one. Now the market is too much attention to the noise and ignore the main function of the brake pads.
As for everyone said that the brake is not on the line? It is on the line, but you may not have thought, you can stop the road in the car, can brake at normal speed, but you can brake in the case of emergency braking it? Can you stop the car at a high temperature of continuous braking at Panshan? Can you keep the braking distance 100 kilometers per hour on rainy days? And the original car brake pads must be guaranteed that we need the safety of the time when the stability of the braking capacity. This point, I believe that many people think that the car on the line did not think of the owner.
Seven, brake pads short life is how is it? Why in the case of emergency braking products, poor braking distance?
A: As with all objects, the intermolecular link strength of the material is reduced at high temperatures. Brake brake is the principle of the kinetic energy to friction into the heat to achieve the brake (energy balance theory), so the brake pads and disk friction generated by a lot of heat will accumulate in the friction surface of the brake pads, the original car brake In order to achieve sufficient strength in this high temperature brake, it is necessary to use high temperature resistant resin, high purity graphite, high purity barium sulfate and other materials, and these materials are like you choose from a car only the same size Like coal, the cost will rise sharply.
The poor quality of the brake pads, they will not use such high-end materials, so they can not guarantee stability at high temperatures, and with the speed of the increase, the heat more, higher temperature, lower link strength, Dynamic capacity, the performance of the brake distance extension. So, you are in the city 20 to 60 km speed state of driving that can be the brake pads, does not mean that you are in the high-speed state has the same stable braking distance performance.
When the molecular chain in the high temperature state after the link strength is reduced, the wear and tear to speed up, which is why the mountain or often brakes under the general brand brake pads life is very short reason.
Eight, is not the brake film no noise, is the soft, its short life?
A: No, this argument comes from the garage. There is noisy, and that brake pads hard, give you a soft, no noise, but requires you to accept short life defects. If a taxi to long life, it must be hard, you can only accept a noise or disc.
Those you do not always know the brake pads common sense
In practice, these statements are inaccurate. In addition to the original car supporting the mature formula has the ability to ensure low noise at the same time, but also to ensure a long life longer. Most of the market is a separate noise as the main goal, they are for the so-called market demand. This product is basically a very short life, about 2 to 4 million km. As to whether the owner can ensure the safety of the case of emergency braking distance and high temperature braking capacity. It needs the owner's own judgment.
Nine, is not the original car supporting the brake pads no noise it?
Can only say that the probability is very low Because the noise is too many factors, and the main capacity of the brake pads is to require a variety of extreme road conditions, the safety braking capacity to maintain stability.
10, some brakes installed on the brakes after the feeling of how the jitter is going on? For a pair of other just fine, is the quality of the brake pads?
Brake pads do not cause jitter. The reason for the majority of jitter is because the brake disc in the case of high temperature alternating hot and cold deformation or re-disc after the brake plate processing warping, and brake pads are not the slightest relationship. As for why you change a pair of good, it is estimated that the latter is a great compression, the product can absorb the brake disc of this warping and deformation.
In the original car supporting standards, the compression is a very important project, requiring the normal brake under the brake pad compressibility of 0.1 to 0.2 mm between, so as to ensure that the emergency braking conditions under the brake response speed. So, consider the above, if it is because the jitter to replace the brake pads just fine, you may not be happy.
11, the brake pads began to install well, why later on the noise it?
Based on the brake pads and brake discs is a pair of friction dual, so the proposed brake pads in the use of 300 to 500 km and then compare the performance of the brake pads, because this time, the brake pads and disk basic run. In this period of time to produce noise, sometimes not the cause of the brake pads. And if the use of a long time after the noise, you need to determine the issue of the brake pads.
12, now a lot of online selling brake pads, the quality of how?
① for the poor brake pads ② for the genuine brake pads
In reality, we can not judge, there is no way to judge online. The only judgment is that after you install the effect of using feedback, you can choose an unmanned section, test several times under the high speed of the emergency brake and rainy day when the emergency brake, although the cost of oil. But you judge the product in the emergency conditions of braking stability has great benefits.
Thirteen, where can you buy the original car supporting the quality of the passenger cars brake pads?
Try to choose those professional car supporting the ability of the brake pads business, their own aftermarket brands, although not with the automobile factory trademark, but the quality is not worse than the 4S shop. If you can give you a 70,000 km 80,000 km of life, it would be better. Because the market is now the original car brake pads and high imitation of the brake pads to the owner of the hands of the price difference of more than 100 dollars, and this value is a very different security guarantee.
14, I saw a lot of brake pads YELLOW, is not the more copper the better?
No. Whether it is brass or copper, copper or copper fiber. They are all of the brakes in a number of fillers, their main role is to increase the connection strength and thermal conductivity. Copper pollution to the environment is serious, so, like the United States has begun legislation to prohibit the use of copper in the brake pads. Therefore, it is wrong to judge whether the brakes are good or bad. Moreover, you see the surface of YELLOW is not necessarily copper it, a kind of golden filler called vermiculite, very cheap, often used in the brake pads.
15, the brake disc can generally use how long?
In theory, three sets of brake pads on the need for a set of brake discs, and about life of 15 to 200,000 km. If you use the brake pads are mostly low-metal formula or some poor brake pads, then the disk life will be significantly reduced, about 10 to 150,000 km on the good. Of course, if you have been using a pure ceramic formula, congratulations, your brake disc in the 25 to 300,000 km or less is not need for the change.
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