What are brake pads? What is the function of friction pads in disc brakes?

A friction brake is a mechanical part that stops or slows down a moving part in a machine. Commonly known as brakes. Using the frictional resistance generated when two moving surfaces are in contact with each other, the kinetic energy and potential energy of the automobile when moving are converted into thermal energy, so as to achieve a device that makes the automobile slow down or stop.

The performance of the friction material (brake parts) used on the brake directly affects the braking process, and the main factors affecting its performance are the operating temperature and temperature rise rate. Friction materials should have a high and stable coefficient of friction and good wear resistance.

Friction materials are divided into two categories: metal and non-metal. The former is commonly used in cast iron, steel, bronze and powder metallurgy friction materials, etc., and the latter is leather, rubber, wood and asbestos. The temperature condition and distribution characteristics of the surface of the brake friction pair will directly affect the braking performance and service life of the brake.

The friction brake produces a large amount of friction heat in the work, which can make the working surface of the brake produce local high temperature, and the surface oxidation and even thermal fatigue wear will eventually make the friction brake fail, so it is of great significance to study the influence of temperature on the performance of the friction brake. The friction brake temperature is a very complex problem, involving a wide range of disciplines, which requires the comprehensive application of multiple disciplines, especially the flexible use of computer, mathematics, physics, chemistry and materials science

For the design of brakes and the development of friction materials, the main problem to be solved is to seek a material matching scheme with sufficient heat capacity, sufficient mechanical strength and wear resistance under normal and high temperature conditions.

A high or low coefficient of friction of brake pads can affect the braking performance of a car. Especially when the car needs emergency braking at high speed, the low friction coefficient will cause the braking insensitivity, and the high friction coefficient will cause the tire to lock, causing the rear of the vehicle and skidding, posing a serious threat to safety.

According to the national standard, the brake pads are suitable for the working temperature of 100 350 °C. However, when the temperature reaches 250 degrees, the coefficient of friction of many bad brake pads will drop dramatically, and the brakes will fail completely. In general, according to the SAE standard, the brake pad manufacturer will select the FF rating factor, i.e. the friction rating factor is:

Friction brake is a device that uses the frictional resistance generated when two moving surfaces are in contact with each other to convert the kinetic energy and potential energy of the car into thermal energy, so as to slow down or stop the car.

Friction material is a component material applied in power machinery and relies on friction to perform braking and transmission functions. It mainly includes brake linings (brake pads) and clutch faces (clutch pads). Brake pads are used for braking, and clutch pads are used for transmission.

Any mechanical device and a variety of vehicles in motion must have brakes or transmissions. Friction materials are a key component in such brakes or transmissions. Its primary function is to absorb or transmit power through friction.

For example, the clutch pads transmit power, and the brake pads absorb kinetic energy. They enable machinery and equipment to work safely and reliably with all kinds of motor vehicles. Brake friction pads are used for hydraulic brakes and hoisting electromechanical brakes for cranes, overhead cranes, etc.

There are two types: asbestos friction plate and semi-metal friction plate. Among them, semi-metal friction plate is one of the 38 major scientific and technological public relations projects of the national "Sixth Five-Year Plan", and the project name is "research and application of asbestos-free and semi-metallic friction materials and their products".

Since the advent of power machinery and motor vehicles in the world, friction pads have been used in their transmission and braking mechanisms. In the early stage, the friction plate was made of cotton, cotton cloth, leather, etc., such as: cotton fiber or its fabric is impregnated with rubber slurry, and then processed and molded into brake pads or brake belts.

Its disadvantages: poor heat resistance, when the friction surface temperature exceeds 120, cotton and cotton cloth will gradually scorch and even burn. With the increase of vehicle speed and load, its braking temperature also increases correspondingly, and this kind of friction material can no longer meet the requirements of use.

Asbestos friction materials were born in search of new types of friction materials with good heat resistance.

Brake pads, also known as brake pads, are actually brake pads, in the braking system of automobiles, brake pads are very important safety parts, play a very key role. The brake pad determines the quality of the braking effect and is closely related to the safety of the car, so the daily maintenance of the brake pad is particularly important. What does brake pad wear mean that the car often brakes during use, and the brake pad will gradually be worn out due to friction, and the braking effect will become worse and worse.

For your driving safety, check and replace your brake pads regularly. Brake pads also need to be replaced when they are worn to a certain extent to ensure that the braking effect is not affected. Since the wear and tear of the braking system is affected by many factors, it is best to check every 3000 kilometers or so.

For the newly replaced brake pads, it needs to go through a certain run-in period in order to effectively maximize its braking effect. Under normal circumstances, the life of the brake pad is about 30,000 kilometers, but this value is not absolute, and the replacement cycle should be decided according to the actual use and personal driving habits, and the habit of regular inspection and timely maintenance is the most important.

Hello, meaning it's time to replace the brake pads.

The function of the friction plate is to produce friction between the brake caliper, which is also the first of the braking force, and the friction plate will transmit the braking force to the tire, so that the tire rubs the ground braking, in addition, the friction plate also plays a role in heat dissipation to prevent the attenuation of the braking force.

Disc brakes, also known as disc brakes, are mainly composed of brake discs, brake calipers, friction pads, cylinders, oil pipes and other parts.

Disc brakes pass through the hydraulic system.

The pressure is applied to the brake caliper, so that the brake pads rub against the brake disc that rotates with the wheel, so as to achieve the purpose of braking.

Since the disc brakes are open. The heat generated during braking can be quickly dissipated, and it has good braking efficiency, and is now widely used in cars.

On the basis of common disc brakes, in order to improve the heat dissipation effect during braking and further improve the braking performance, ventilated brake discs came into being.

The friction brake is a mechanical part that makes the moving parts in the machine stop or slow down, commonly known as brakes. Using the frictional resistance generated when two moving surfaces are in contact with each other, the kinetic energy and potential energy when the automobile is moving are converted into heat energy, so as to achieve a device that makes the car slow down or stop.

To put it simply, a brake disc is a round disc that rotates with the car when it is moving, and it works together with the brake calipers and brake riser blades. When we step on the noisy pants and brake, we rely on the brake calipers and brake pads to clamp the brake disc to slow down or stop.

What is Brake? Friction pads are actually brake friction pads are the brakes in the machinery before braking early type installation of the position, that is, brake pads and the like, just like when we drive, the inside of the car, the brake emergency recording device is the same.

With the improvement of people's living standards, friction plate friction materials and everyone has been closely linked, in people's daily life, everywhere can be seen a variety of friction plate friction materials to bring us convenience, which can be roughly divided into the following categories.

1. Rubber-based friction materials: The main formula of this kind of friction material friction plate is rubber, cork and fiber, which does not contain asbestos, which can play a good friction coefficient, and can meet the basic requirements of wear resistance, no noise and environmental protection, and is a commonly used material in motorcycle clutches.

2. Paper-based friction materials: This kind of friction material friction plate is mainly made of imported carbon fiber, aramid and imported resin, which can be used for racing cars and large-displacement motorcycles, especially its friction coefficient is very stable, the high-temperature friction coefficient decay is very small, ablation resistance, and good thermal recovery performance (after the high-temperature clutch slips, the friction coefficient quickly returns to the original state after the clutch is cooled).

3. Resin-based friction materials: This kind of friction material friction plate is mainly composed of reinforcing fiber, friction powder and resin, with high hardness, wear resistance, high temperature resistance of 350 degrees and other characteristics, mainly used in various mechanical clutches and motor reducers, and its performance is comparable to that imported from Taiwan.

4. Carbon fiber friction material: This kind of friction material friction plate is mainly made of carbon fiber, imported rubber and imported cork as the main raw materials, processed by high-quality technology, with high temperature resistance of 350 degrees, wear resistance of 25,000 kilometers, no noise, no slip and ablation resistance, etc., is the best friction material.

5. Semi-metallic friction materials: This kind of friction material friction plate is mainly made of rubber, friction powder, fiber and metal fiber, the product has the characteristics of wear resistance, super hardness, high friction coefficient, etc., and is the best partner used in mechanical clutch and motor brake system.

Brake friction plate friction material requirements for the fiber components used:

1. Good enhancement effect.

2. Good heat resistance, no fuse, carbonization and thermal decomposition will occur at the friction working temperature.

3. It has a basic coefficient of friction.

4. The hardness should not be too high, so as not to produce braking noise and damage to the brake disc or drum, and the process operability is good.

5. Filler The filler in the friction material component is mainly composed of friction performance modifier and compounding agent.

Brake pads are brake pads.

Brake pads are brake pads, which are actually brake pads. In the braking system of the car, the brake pad is an important safety part, and the brake pad determines the quality of the braking effect, which is closely related to the safety of the car.

The car often brakes during use, the brake pad will be gradually worn out due to friction, and the braking effect will become worse and worse, if it is not replaced in time, it will lead to the loss of braking effect and affect driving safety. Under normal circumstances, the brake pads are replaced about 30,000 kilometers.

Brake pad authenticity identification method:

1. Material: Really: It is made of environmentally friendly organic materials that are wear-resistant and noise-suppressing, and has stability that is not affected by temperature differences. False: The surface of the friction plate is relatively smooth, the friction coefficient is not up to standard, the friction ability is weak when braking, and the braking effect is poor.

2. Welding process:

Really: the friction material is in firm contact with the metal plate, which is not easy to detach, and effectively guarantees the safety of driving. False: The friction material is not in good contact with the metal plate, and there is a possibility of falling off during emergency braking, which threatens driving safety.

Question 1: What does it mean when brake pads appear on the dashboard of the Audi A6? Hello, this situation is going to check the brake pads, if my answer is helpful to you, please take Yu Zen to set it as.

Question 2: BMW 5 Series displays brake pads, what does it mean to drive carefully Check the brake disc, replace the brake pads and brake sensing wiring harness.

Good value for money and very stylish.

Well, yes Question 4: What is the impact of the car brake pad display light on This light is on, which means that the brake pad is relatively thin and close to the limit, and there is no problem with driving the vehicle in a short time, and there will be no potential safety hazards, but it should be replaced as soon as possible [If the car has a problem, ask the car master. 4S shop professional technician, 10 minutes to solve.

Question 5: What is the difference between friction pads and brake pads Jiangsu Tongyu friction plate manufacturers are happy to share with you; What is the difference between friction pads and brake pads, generally friction pads are used in automobiles or mechanical clutches to play a separating role, while brake pads are used in automobiles or Zhichen mechanical brakes to play the role of braking brakes.

Question 6: Volkswagen Touareg light on, please check what does the brake pad mean That is, your ruined brake pad is not enough, and it is recommended to replace it. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Question 7: What does it mean that the BMW 523 brake pad prompt light is on Replace the brake pads.

Question 8: What is the material of the friction pad of the automobile brake For the brake pad, the most important thing is the choice of friction material, which basically determines the braking performance of the brake pad. Friction materials are divided into three basic materials: asbestos, semi-metal, and organic (NAO).

In 1999, China banned the use of asbestos in friction plates, and at present, semi-metal friction materials are commonly used in China, and steel or copper materials are mostly used.

The quality of brake pads is directly related to the reliability of vehicle braking. Brake pads are like candles, silently consuming their lives for our safety.

Question 9: The front brake pad wear indicator light is on, what's going on Hello This is to replace the front brake pad or the brake pad alarm line is damaged.