What kind of brake pads are better?

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.

At present, brake pads are mainly divided into: low-metal and low-metal brake pads, graphite high-carbon brake pads, polymer fiber brake pads, and ceramic brake pads. Among them, polymer is somewhat similar to ceramics, and it is okay, but there are many false brake pads of polymer materials on the market, so on the whole, you can choose ceramic materials.

Such as Remsa Wearer (which is characterized by low dust, quiet, and wear-resistant), Firodo, etc.

Specifically, it can be divided into the following points: High coefficient of friction stability: In the case of high temperature, pressure and speed, the friction coefficient of the brake pad needs to be high enough and have sufficient stability.

High adhesion resistance: It does not bond with the working surface of the friction pair, and does not produce peeling, abrasion, welding and other destructive damage to the friction surface. High heat resistance:

To be able to maintain the instantaneous friction temperature rise to 900 1000 and the long-term friction temperature rise to 300 400, its mechanical properties and friction properties remain basically unchanged. High thermophysical stability: The friction material should be able to withstand frequent thermal changes, i.e. resist thermal fatigue, while also having a fairly high thermal conductivity, specific calorific value and the smallest possible coefficient of linear expansion.

Sufficient mechanical strength: The material should not produce cracks, delamination, deep cracks, spalling and detachment from the steel back; A feasible rate of wear is guaranteed. High abrasion resistance:

The wear resistance depends mainly on the operating conditions of the brake pads. For powder metallurgy material brake blades, the allowable wear amount of the UIC is cm2 mJ to ensure that the EMU brake blades have a long enough life. High environmental friendliness:

Braking should be smooth and low noise; Asbestos and lead, which are not conducive to environmental protection, cannot be added to the material; It should be able to withstand moisture for a long time and at a temperature range of 60 to 50 with strong corrosion resistance.

Everyone is familiar with the brake pads, if they are almost worn, they should be replaced, otherwise the safety hazard will be great. In the braking system of the car, the brake pad is the most critical safety component, and the brake pad plays a decisive role in all braking effects, so a good brake pad is the patron saint of people and cars. What kind of brake pads can be done well?

Many people may answer in unison about ceramics, but they are not. Let me explain to you in detail, brake lining is generally composed of steel plate, adhesive layer, thermal insulation layer, friction material and composition. The steel plate should be coated to prevent rust.

According to the different friction materials, brake pads are divided into metal brake pads and carbon-ceramic brake pads; Metal brake pads are divided into micro-metal brake pads and semi-metal brake pads, ceramic brake pads are classified as less metal, and carbon-ceramic brake pads are used in conjunction with carbon-ceramic brake discs. A parameter that indicates the friction efficiency of brake pads. The coefficient of friction roughly means how sticky the piece is.

The more sticky, the greater the resistance, and the more sensitive the brakes. However, the worse the comfort and heat resistance, the nodding will be when you step lightly, and the high temperature brake pads can maintain the braking coefficient at higher temperatures, but the friction coefficient of the high temperature brake pads is not necessarily large. The rating of the brake pads is indicated by two English letters.

The first is to measure the coefficient of friction at four points between 0 600 degrees Fahrenheit.

Now we can know which grade the ceramic brake pads belong to. Ceramic brake pads belong to the FF class and are considered moderate in the overall brake product. The coefficient of friction is just a reference, the quality of the brake pads has a lot to do with the friction material!

For lighter vehicles, such as Japanese and Korean cars, it is recommended to use ceramic brake pads; Micro metal brake pads are recommended for heavy-duty vehicles, such as Dread cars. The material of micro-metal brake pads is more complex and will be formulated according to the comfort of the car. In fact, the best brake pads are not ceramic brake pads, which should be chosen according to the characteristics of your car.

There is no shortage of the most expensive brake pads in the world, but there are the best ones for you.

The braking force that directly affects the brake pads is directly related to the feeling when braking. In this regard, the State itself has mandatory requirements. Brake pads with a high coefficient of friction will cause the wheels to lock up and lose control of the direction of travel; If the friction coefficient is too small, the braking effect is not good, the braking distance is too long, and it is not safe.

At present, the friction coefficient of the brake pad stipulated by the state is between 100. During braking, the temperature of the brake pads increases and the frictional properties decrease. However, if the friction performance drops sharply, it is difficult to guarantee braking safety.

At present, the national standard clearly stipulates the coefficient of friction of brake pads at room temperature and high temperature. At 200, the coefficient of friction of the brake pads cannot be reduced to the following.

It is best to choose ceramic brake pads, which are more wear-resistant, can increase the service life of the brake system, and are not prone to small problems.

Try to choose metal or ceramic, because these two brake pads are resistant to high temperatures and are also resistant to wear, which plays a good role.

Choose carbon brake pads. The performance is particularly good, and ordinary people will not use it, because the ** is too high, only racing cars will use it.

We often use the brake pads made of new materials of ceramic graphite, which have very good heat resistance, very small noise, and are relatively moderate.

The following materials of brake pads are better.

1. Asbestos. Asbestos is the earliest material used in clutch liners, because it has excellent heat resistance and friction properties, but because asbestos is carcinogenic and has health hazards, the development of brake pad materials no longer uses asbestos materials.

2. Non-metallic materials. Usually refers to the composite material composed of cellulose, sintered glass and aromatic polyurethane, for brake pad materials, non-metallic does not have a good market, although non-metallic materials will not produce scratches on the rotor, but often produce a lot of dust, life and strength need to be improved.

3. Semi-metallic materials. It is composed of a mixture of various sintered metals and synthetic materials, and has a long life when used as a bushing, under high temperature conditions (>200), it has excellent wear resistance, and the anti-fading ability is better than that of non-metallic materials, but the wear of the rotor will be more serious, and the braking ability of semi-metallic materials is poor.

4. All metal. The bushings that are usually made of all metals such as ferrous and non-ferrous metals, inorganic and organic fibers, lubricants containing a large amount of carbon and sulfide are mainly made of steel, which has a high coefficient of friction (, and superior braking performance. All-metal bushings have a longer life, but they also wear more on the rotor and produce a lot of noise.

5. Organic materials. Most of the organic linings used now are composite materials such as fiber or cellulose into organic resin, adding various lubricants and modifiers to improve the performance of brake pads composite organic materials, organic material brake pads have a high friction coefficient (at lower temperatures (<200), with excellent wear resistance.

6. Aramid. The heat resistance of aramid is better than that of the organic liner mentioned above, and the friction properties of the nylon material obtained by bonding the staple fibers together are also good. Although aramid is very strong, it is sensitive to the environment, and a small amount of oil can reduce the life of aramid bushings.

7. Sintered iron. It is obtained by pouring powdered metal materials into abrasives and melting them at high temperature and pressure. Many metals can be sintered as clutch linings, but iron is the most common.

The biggest advantage of sintered iron discs is that they have both anti-slip ability and excellent coefficient of friction, making them a very ideal material for brake pads, but the iron is heavier and has poor wear resistance.

8. Carbon materials. Carbon material is a new type of material developed in recent years, and it is the latest technology of clutch bushing. Carbon bushings are light in weight, high in strength and have excellent heat resistance - they can withstand high temperatures of 800 to 1000 °C, and the friction properties of carbon materials can be enhanced by adding friction modifiers, so that they have good application prospects.

Brake pads are a very important component in the automotive braking system, which directly affects driving safety and comfort. At present, the common brake pad materials on the market are metal, semi-metal, ceramic and other types. Let's take a closer look at the pros and cons of these materials.

1.Metal brake pads.

Metal brake pads are typically made up of copper, steel, and other alloys. They have the following advantages:

Durable: Compared to other materials, metal brake pads are more durable and can work in high-temperature environments.

Good stability: Because of its high hardness, it is not easy to deform or produce noise.

**Cheap: Metal brake pads are lower compared to other materials.

However, there are also the following drawbacks:

Poor braking force: Braking may be slightly less effective in wet conditions compared to other materials.

High noise: When used for a long time, it is easy to have a sharp grinding sound.

2.Semi-metallic brake pads.

Semi-metallic brake pads are usually made up of a variety of elements such as copper, steel, and carbon fiber. They have the following advantages:

Strong braking force: Provides good braking in both dry and wet conditions.

Less wear: Semi-metallic properties reduce slight wear compared to other materials.

Less prone to noise: Less noise than ordinary iron products.

However, there are also the following drawbacks:

High cost: Slightly higher pricing than regular ferrous products.

Long-term use can cause a slight oscillating sensation.

3.Ceramic brake pads.

Ceramic brake pads are manufactured with a specially formulated blend and glass fiber reinforcement added to provide additional support. They have the following advantages:

Stable braking effect: The two-way anti-lock braking system guarantees optimal control.

Minimal wear and tear: service life of more than 50,000 km.

Virtually noiseless : because of its compact structure and smooth and flat surface.

However, there are also the following drawbacks:

The cost is expensive :**much more than traditional models.

High requirements for the coefficient of friction of the rotor: If the surface of the rotor is uneven, it can cause a tremor sensation when rotating.

In short, when choosing the right brand and model for your car, please consider your financial strength and daily needs, and choose products that meet the specifications and standards according to the manufacturer's recommendations.

Ceramic brake pads are the best, mostly used in high-performance sports cars. The materials are mainly divided into the following categories: asbestos brake pads (basically eliminated), semi-metallic brake pads, less metal brake pads, NAO formula brake pads, ceramic brake pads, and NAO ceramic brake pads.

Brake pads are made from a combination of specific anti-wear materials. It must be able to provide sufficient friction when braking the vehicle, and it must also be able to guarantee a certain level of softness. If the hardness of the brake pad is hard, then the friction it can produce will be reduced accordingly, and the braking force it can generate will be reduced accordingly.

The biggest difference between ceramic brake pads and traditional brake pads is that there is no metal. Ceramic brake pads do not contain metal components, so they avoid the metal noise of traditional metal brake pads rubbing against each other (i.e. brake pads and brake discs). Therefore, the metal in the traditional brake pad is the main material that produces friction, and the braking force is large, but the wear is large, and it is prone to noise.

After installing ceramic brake pads, there will be no abnormal noise (i.e. scraping sound) during normal driving.

The long-term use temperature is 1000 degrees, which makes the ceramic suitable for the high-performance requirements of various high-performance brake materials, and can meet the technical requirements of brake pads such as high speed, safety, and high wear resistance. Ceramics have good thermal stability and low thermal conductivity, good wear resistance.

The wear and tear of automobile brake pads has a great impact on the driving safety of the vehicle, so the wear-resistant brake pads must be selected in the selection of brake pads, so that the vehicle will have more safety guarantee during driving.

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