Automobile brake pads are important safety components in automobile braking systems. The braking performance is reflected by the friction effect of brake pads and brake discs. The quality of the brake pads directly affects the braking performance of the car, and is related to the life and property safety of the car's drivers and passengers.
For some time, some China brake pad manufacturers have specialized in carbon fiber ceramic brake pads.
Why choose carbon fiber ceramic brake pads? Is it a good quality brake pad?
First of all, there is no clear standard or document to explain in the Chinese and international counterparts, but a popular explanation based on user or market feedback.
Main technical performance indicators of carbon fiber ceramic brake pad products:
The friction coefficient is 0.35~0.45; the wear rate is 0.2~0.4; the service life is more than 40,000 kilometers; there is no noise; the thermal degradation is ≤15%.
Stable high temperature performance: During the braking process, the maximum temperature can reach 350°C, the brake pads will not change its performance (coefficient of friction and wear rate), and there will be no cracks in sudden braking.
Wear resistance and dual damage: 50,000 to 70,000 kilometers should be more abrasion resistant, the more important thing is that the brake disc is not gnawed, and the running-in is very uniform.
No noise: Everyone said that the brakes did not sound.
No black powder: After braking, there will be no black powder on the wheel, which eliminates the troubles of the driver.
Sensitive and even braking action: When you step on the brake, you will feel the brake is sensitive and comfortable.
Smooth braking process: smooth, uniform and safe braking effect.
What are the advantages of carbon fiber ceramic brake pads
01. Stable friction coefficient
The friction coefficient is the most important performance index for evaluating all friction materials, and it is related to the performance of the brake. During the braking process, due to the heat generated by friction, the working temperature of the friction part increases. Generally, the friction material of the brake pad is affected by the temperature, and the friction coefficient begins to decrease, which will reduce the friction force, thereby reducing the braking effect. The choice of friction material for ordinary brake pads is inappropriate, and the friction coefficient is too high to cause the direction of the braking process to be out of control, and when the temperature is too high, it will cause burning phenomenon. High-quality brake pads Even when the temperature of the brake disc is as high as 650°C, the friction coefficient of the brake pads is still 0.45~0.55, which can ensure that the vehicle has good braking performance and at the same time overcome the shortcomings of ordinary brake pads.
02. Good comfort
In the comfort index, the noise of the brake pads is often the most concerned by car owners. The brake pads are installed very well. Why does it produce noise in the later period? The noise is caused by abnormal friction between the brake pads and the friction disc. The causes are very complicated. The braking force, the temperature of the brake disc, the speed of the vehicle and the weather conditions may all be the causes of the noise. Noise is also a problem that ordinary brake pads cannot solve for a long time.
03. High-quality material characteristics
Carbon fiber ceramic brake pads use high-tech materials such as large particles of graphite, potassium titanate, high temperature resistant minerals or synthetic fibers, which have the advantages of high temperature resistance, wear resistance, stable braking, repair of injured brake discs, environmental protection, no noise, and long service life. It overcomes the defects of traditional brake pads in materials and craftsmanship, and is currently the most advanced advanced brake pad in the world.
04. Long service life
Service life is an indicator that everyone pays attention to. The life of ordinary brake pads is about 40,000 kilometers, while the life of carbon fiber ceramic brake pads is more than 80,000 kilometers. The unique formula of carbon fiber ceramic brake pads uses only 1 or 2 kinds of electrostatic powder, and other materials are non-static materials, so that the powder will be taken away by the wind with the movement of the vehicle, and will not stick to the wheel hub. Beautiful. The life of carbon fiber ceramic brake pads is more than 50% longer than that of ordinary semi-metal. After using carbon fiber ceramic brake pads, the brake disc will not be scratched, which extends the service life of the original car's brake disc by 20%.
05. Good mechanical strength and physical properties
Before the friction material products are used, they sometimes need to be drilled, assembled and other mechanical processing to make the brake pad assembly. Therefore, it is required that the friction material must have sufficient mechanical strength and be able to withstand greater pressure and shearing force to ensure that there is no damage and chipping during processing or use.
06. Has low heat decay
Irrespective of disc, drum or special machinery special-shaped brake pads, they must have the same braking ability as in the cold state under the conditions of long-term braking, high-load braking and high friction temperature and high-speed braking.
China brake pad manufacturers professionally remind you, what should you pay attention to when buying carbon fiber ceramic brake pads?
The first point
When you get the disc brake pads in the market, check whether the chamfers of the brake pads are the same on both sides, whether the grooves in the middle are straight and neat, and whether the edges are smooth and free of burrs. Because of these details of the product, although it does not affect the braking performance of the production sheet, it can reflect the equipment manufacturing level of the manufacturer. If there is no good manufacturing equipment, it is difficult to produce a good product even with a good formula.
Second point
For internal quality inspection, you can use the friction material surfaces of two products of the same kind to contact, and then perform relative friction with force. If there is powder or dust falling, it means that the brake pad is not a good product, and the internal friction material of the product is relatively loose. , Which directly affects the thermal decay performance and wear performance of the product.
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