How to identify the quality of brake pads, how to distinguish the quality of brake pads?

The main thing is to see.

1. High performance 2. Safety 3. Comfort.

4. Reasonable service life.

5. Low powder loss rate.

Brake pads are also called brake pads. In the braking system of the car, the brake pad is the most critical safety part, and the brake pad plays a decisive role in the quality of all brake effects, so a good brake pad is the protector of people and cars. Once the car's braking system fails, it means that there are safety hazards for drivers anytime and anywhere.

Ways to judge whether brake pads are good or bad:

1) When the thickness of the brake pad is less than the minimum maintenance standard allowed by the vehicle manufacturer (generally when the thickness is still 1 3);

2) When the wear alarm switch on the brake pad has been alarmed;

3) The brake pad is most afraid of oil, if it is contaminated by oil or grease, it must be replaced;

4) When the brake pads have abnormal noise when braking;

5) Under normal circumstances, if the thickness difference between the two sides of the brake pad on the fixed brake caliper reaches millimeters, the thickness difference between the two sides of the brake pads on the floating brake caliper needs to be replaced when the thickness difference between the two sides reaches millimeters.

1. Look at the packaging. The packaging of original accessories is generally more standardized, unified standard specifications, and the printing is clear and formal, while the packaging and printing of fake and shoddy products are relatively poor, and it is often easy to find out the flaws in the packaging.

2. Look at the color. Some original parts are specified with a certain color on the surface, and if they encounter other colors, they are counterfeit and shoddy parts.

3. Look at the appearance. The appearance of the original parts is clear and regular, while the appearance of the fake and shoddy products is rough.

4. Look at the paint. Unscrupulous businessmen will simply process waste parts, such as dismantling, assembling, patching, scraping, painting, etc., and then pass them off as qualified products** to illegally obtain high profits.

5. Look at the texture. The materials of the original parts are qualified materials according to the design requirements, and the fake and shoddy products are mostly replaced by cheap and inferior materials.

6. Look at the process. Although the appearance of inferior products is sometimes good, due to poor manufacturing process, it is prone to cracks, sand holes, slag inclusions, burrs or bruises.

7. Look at storage. If the brake pads have problems such as dry cracking, oxidation, discoloration or aging, it may be caused by poor environment, long storage time, poor material and other reasons during storage.

8. Look at the joint. If the brake pad rivet is loose, degummed, the joint of the electrical part is desoldered, and the seam of the paper filter element is disconnected, it cannot be used.

9. Look at the logo. Some regular parts are marked with certain marks, pay attention to the production license on the packaging and the specified friction coefficient identification, without these two logos, the quality of the product is difficult to guarantee.

10. Look at the gaps. Regular assembly components must be complete and intact to ensure smooth installation and normal operation. Some small parts on the assembly parts are missing, generally "parallel goods", which causes difficulties in installation.

Often due to the shortage of individual small accessories, the entire assembly parts are scrapped.

When buying accessories, you still have to keep in mind the saying: cheap is not good. The original factory has a unified pricing, and if some merchants use **** products at prices lower than the market price, it is very likely to be fake.

First, check whether the replaced brake pads are genuine accessories, first of all, to see whether the product packaging is intact, whether the anti-counterfeiting mark and packaging logo are consistent with the logo on the brake pads, and whether the product model is consistent with the content of the certificate. Second, from the point of view, some fake shops and auto repair shops will be slightly lower than the **** of genuine products. However, in view of the fact that they are often priced at genuine products, car owners still have to go to specialty stores or special maintenance points to buy and replace them.

Third, it is especially necessary to try to choose pure supporting products. Because the supporting products have very strict requirements for quality, they adopt international quality standards, and have passed strict quality tests before leaving the factory, and are the "top" products in automotive brake pads. The ordinary brake pad products are processed in accordance with their domestic quality standards, and the standard parameters are lower than the international standards.

The most important point, don't be greedy for cheap, you won't buy fakes, just buy the brand, ral brake pads, this brand has a good reputation in the market.

Hello, counterfeit inferior brake pads are easy to cause locked wheels and loss of direction;

Counterfeit and inferior brake pads lead to the prolongation of the braking distance, and when emergency braking is required, it cannot be stopped in time, resulting in accidents;

Counterfeit and inferior brake pads have a short service life, and although friction pads are wearing parts, they should ensure a certain service life;

The materials and processes of the brake pads themselves determine that we cannot see the quality of the brake pads with the naked eye, and we can't even distinguish them by color.

If we talk about seeing with our eyes, then there are a few points that we can pay more attention to:

First of all, we must look at the product packaging, the product packaging of regular enterprises is clearly printed, the surface of the box must have the number of the production license, the friction coefficient is formulated, and the implementation of the standard is not clear.

Second, it is necessary to look at the logo of the brake pad itself, and the brake pad of the regular product must have the logo of its enterprise on the non-friction surface. There is no sign on the non-friction surface of the unqualified product.

Third, look at the surface quality of the brake pads, the surface quality of the brake pads produced by regular enterprises is uniform and evenly sprayed. Unqualified products, there is a phenomenon of paint loss. If you look at the grooves, the brake pads produced by regular enterprises, the grooves are very standardized, and the unqualified brake pads do not open the grooves, which is not conducive to heat dissipation.

Fourth, look at the intrinsic quality of brake pads, because brake pads are made of dozens of materials mixed with hot pressing, the naked eye alone can not completely judge the quality of its products, so when purchasing brake pads, it is best to ask the business to provide an authoritative test report.

It is impossible to judge the quality of brake pads with the naked eye, but it can judge the properties of brake pads. There are two types of brake pads: one is harder and wear-resistant, but the ratio of brake effect to softer texture is poor.

Brake pads with a softer texture, although the braking effect is better, but not very wear-resistant, generally do an inspection once every 3 months.

Soft brake pads generally run dozens of kilometers a day, and the life span is 6-7 months (disc brake). The drum brake life should be longer. The hard brake pads are mixed with copper chips and pressed at high temperature.

Therefore, some copper chips can be seen in the working surface of the hard brake pads. If it's a piece of color, it's soft brake pads.

There are two types of brake pads: metallic brake pads and carbon-ceramic brake pads. Brake pads are also called brake pads, in the braking system of automobiles, brake pads are key safety parts, and all brake effects are decisive for brake pads.

Brake pads are generally made up of steel plates, bonded insulation, and friction blocks. The working principle of brakes mainly comes from friction, using the friction between brake pads and brake discs and tires and the ground to convert the kinetic energy of the vehicle into the heat energy of friction to stop the car. A good and efficient braking system must be able to provide stable, sufficient and controllable braking force, and have good hydraulic transmission and heat dissipation capacity to ensure that the force exerted by the driver from the brake pedal can be fully and effectively transmitted to the master cylinder and each sub-cylinder, so as to avoid hydraulic failure and brake decline caused by high heat.

It is impossible to judge the quality of brake pads with the naked eye, but it can judge the properties of brake pads. Brake pads are divided into two kinds: one is harder and wear-resistant, but the braking effect is almost worse than the softer texture of the brake pads, although the braking effect is better, but not very wear-resistant, generally do an inspection in 3 months, soft brake pads generally run dozens of kilometers a day, the life span is 6-7 months (disc brake). The drum brake life should be longer.

The hard brake pad is mixed with copper chips and pressed at high temperature, so some copper chips can be seen on the working surface of the hard brake pad. If it's a piece of color, it's soft brake pads.

The brake is one of the most important components of the car and is also closely related to the life of the owner. But criminals have created fake brake pads that violate conscience for profiteering, and now let's talk about how to distinguish between real and fake brake pads. Please keep your eyes open and take a good look.

True and false brake pad identification method, false 4 brake pad friction block high metal content will affect brake heat resistance, braking effect, increase brake disc wear, shorten brake disc life.

Don't worry, take a look at his whole body**. Aren't they all the same? Okay, now we can tell you the answer!

The correct answer is: inferior brake pads, ** brake pads. Did you guess right?

Is a dignified number on the surface a bad one? So, will the auto repair technology network tell me why? First of all, we should start with the composition of the brake pads.

The configuration structure of brake pads, which are usually composed of steel plates, bonded insulation, and friction blocks. The friction block is composed of friction material and adhesive, which rubs the brake disc or brake drum when braking, and reaches the destination of vehicle deceleration and braking.

The material of the friction block of the brake pad At present, most of the high-performance brake pads are made of carbon fiber and metal materials as the main raw materials, emphasizing the environmentally friendly recipe without asbestos. Let's take a look at it. This is the back of the brake pad.

What have you discovered? Yes. The back of this cleaner brake is rusty, indicating that the iron content of the inferior brake material is too high.

Make a close-up of the friction surface of the brake pad. By the way, the fake brake pads are more detailed than we can see. No. 1 iron metal is too high, the copper content is low, and the light color shows that the friction plate composition of silica, mullite and so on is small.

To sum up, the most direct is that the coefficient of friction is not high, and the heat dissipation performance is insufficient. Compared with the No. 2 ingredient, the preparation fee is more reasonable, the copper content and friction content are higher, the surface is also rough, and the friction coefficient or cooling performance of the No. 2 brake pad is much higher than that of the No. 1 brake pad.

Fake and inferior brake pads can easily lead to dead wheels and loss of direction; Counterfeit inferior brake pads, extend the braking distance, and fail to stop in time when emergency braking is required, resulting in accidents. False bad brake pads have a short lifespan, and friction pads are easy to damage, but it is necessary to ensure a certain service life. False bad brake pads have large wear and tear on the brake disc, which reduces the life of the brake disc.

Counterfeit bad brake pads have strong heat conductivity, reduce the life of brake clamps, and at the same time cause certain braking worries. There is a brake noise when using counterfeit bad brake pads.

Check with your dealer. Dealers have seen a lot, and they can tell the truth at a glance.

We can look at the packaging. The packaging of the original factory is more standardized, and the handwriting is relatively clear. The inferior packaging is particularly rough and the words are particularly blurred.

If you just look at the eye, you can't see it at all, the most important thing is to install the brake pads on the top of the car to step on, if there is an abnormal noise, it means that it is fake, but if it is softer, it is true.

The quality of the brake pads is directly related to the brakes, so the safety function is very important. There are several ways to judge the quality of brake pads:1. Look at product packaging and certification; 2.Observe the appearance of the brake pads; 3.Check the coefficient of friction of the brake pads.

1. Look at the product packaging and certificate;

The packaging and printing of brake pads produced by regular manufacturers are clear, with license numbers, specified friction coefficients, implementation standards, etc. There is a certificate of conformity, production batch number, production date, etc. in the box. Therefore, it is necessary to check whether the product packaging is in good condition, whether the anti-counterfeiting mark and packaging logo are consistent with the logo bridge on the brake pad, and whether the product model is consistent with the content.

If the packaging is rough, the information is incomplete, or even there is no product, it is necessary to carefully distinguish whether the brake pads are of inferior quality.

2.Observe the appearance of the brake pads;

High-quality brake pads pay special attention to the proportion of materials used in the friction material of brake pads, which looks full of color, smooth to the touch, and is not easy to peel off paint. In order to reduce costs, inferior brake pads are made at will, and a large number of cheap metal chips will be used in production, which may be reddish in color and may have oxidized surface.

3.Check the coefficient of friction of the brake pads.

A high or low coefficient of friction of brake pads can affect braking performance, especially during emergency braking at high speeds. The coefficient of friction is too low, the brakes are not sensitive, the coefficient of friction is too high, and the tires are locked. According to the SAE standard, the brake pads will be selected with a rating factor of FF class, i.e. the rated coefficient of friction is.

In addition, according to the national standard, the suitable working temperature of the brake pad is 100 350 degrees Celsius, and when the inferior temperature reaches 250 degrees Celsius, the coefficient of friction will drop sharply, resulting in failure.