What is the cause of rusty brake discs, is it normal for brake discs to rust?

The brake disc of the car is an important part of the brake system of the car, so what is the cause of rusty brake discs?

If your car's brake discs are rusty, they may have been exposed to water or in a humid environment. Because the brake disc of the car is a cast iron component, usually washing the car, driving in rainy days, wading driving, snow driving, frost or in a humid environment, after the car is parked for a period of time, the surface of the brake disc of the car will produce rust. This is a normal phenomenon of oxidation and rust of cast iron parts after encountering water, so car owners do not need to worry too much.

If the brake disc only has a slight rust on the surface, it can be removed by continuously pressing the brakes while driving the car, and the friction between the brake caliper and the brake pads can remove the rust and restore the brake disc to its original state. But pay attention to safety and operate on a safe road section. If it is seriously rusted, then you need to go to a 4S shop or car repair shop to polish it and remove the rust.

Normally, the brake disc is rusty because there is water on the brake disc after the weather is wet or after rain, and it will rust if it is not opened every other day, because the brake disc is cast iron and is easy to rust.

1.The material of the brake disc is cast steel;

2.Cast steel has the same material characteristics as iron, and the exposed parts will be exposed to moisture in the air, which will cause rust over time.

Conclusion: Rust is inevitable when the brake disc is exposed, and the surface rust will disappear after a few brakes.

Normal, because the brake disc is iron, the car will rust if it is not driven for a long time.

The brake disc is rusty normally, and the brake disc is made of cast pig iron. In the case of long-term immobility and greater humidity, there will be rust stains, and when the rust is driven, drive out and brake the car a few times, and the rust of the brake disc will be worn off.

The solution to slight rust: the brake disc has a slight rust, which can be worn off by normal braking, the principle is to achieve the effect of rust removal through the friction of the brake pad and the brake disc.

Notes: 1) "Vehicle" refers to motor vehicles and non-motor vehicles.

2) "Motor vehicle" refers to a wheeled vehicle that is driven or towed by a power unit and driven on the road for personnel or for transporting goods and carrying out special engineering operations.

3) "Non-motorized vehicles" refers to vehicles driven by human or animal power and driven on the road, as well as motorized wheelchairs for the disabled, electric bicycles and other vehicles that are driven by power units but have a design maximum speed, empty mass and external dimensions that meet the relevant national standards.

Rusty brake discs are normal and have little to do with quality. After all, the brake discs of most family cars are made of cast iron, which is exposed to the sun and rain for a long time, and the working environment is harsh, especially if it is parked for a long time, the surface will be prone to some rust. Even if the new car of the 4S store is parked outdoors for a long time, it will also have this situation.

Although the rusty brake disc has a certain impact on the brake system, there is no need to be overly nervous and aggressive, and these problems can often be dealt with by the owner himself.

First of all, whether it is a new car can not be judged only by whether the brake pads are rusty, to be judged by the nameplate and the customs order, which is what we often call the procedures, in the establishment of 4S, the possibility of procedure fraud is almost zero, I have been in the industry for so long, I have not seen the establishment of the 4S shop fraud (except for small 3C and parallel imports), and now the cost of counterfeiting is very high!

Secondly, if the car to be picked up from the formalities is a car within half a year, then I would rather have a rusty brake disc when I pick up the car, there are two factors:

1. This natural oxidation is normal, especially after rain, which can occur within a few days. But if the car is too old, it's a different story!

2. After checking the procedures and nameplate to confirm that it is a new car, I will not mention the car with bright brake pads, because either this car has been driven (emergency braking a few times, this bit of oxide can be wiped off); Either the car has been in the showroom!

To sum up: on the premise that I can judge that the car to be mentioned is a new car, I will try to choose a car with rust, but not much! If it's too much or too bright, I'll ask for a replacement!

Rust of brake discs is common and normal because they are metal and have no protection, so they are directly exposed to the air, resulting in oxidative rust.

It is normal for car brake discs to rust, and here is a detailed introduction about it:

1. Slight rust:

Slight rust often occurs, and it is easy to cause slight rust after the car has been drenched in rain overnight, and the car has not dried after washing.

2. Severe rust:

If the brake disc has severe rust, then the entire surface of the brake disc has a relatively thick layer of rust. ”

Hello, it's normal.

Nowadays, many brake discs on vehicles are made of cast iron, of course, a small part is made of special materials, and it is normal for cast iron brake discs to appear rusty.

1. Most of the brake discs are made of cast iron, and there is no anti-rust treatment in order to increase friction, so it is easy to rust.

2. Whether it is a new or old car, if your car is parked for a few days and does not open, or if the water splashes on the brake disc when washing the car, the brake disc will also rust, and the rust of the brake disc is a very common phenomenon, and the rust of the brake disc does not mean that there is a problem with the car itself.

3. If the friction surface of the brake disc is slightly rusty, we can continue to lightly step on the brake on the safety road, and use the back and forth friction between the brake pad and the brake disc to quickly clean up the rust on the disc surface.

4. The rust on the brake disc is only oxidized and corroded for a short time, in fact, it does not affect the brake effect, the brake disc is made of cast iron, which is easy to have a chemical reaction with the oxygen in the air.

5. If you don't drive for a long time, the friction surface of the brake disc is more seriously corroded, and the rust can not be removed by driving to the safety road and stepping on the brake lightly, accompanied by the abnormal sound of stepping on the brakes, and the rust to the abnormal sound of stepping on the brakes, then you must go to the repair shop to do the light brake disc treatment.

I believe that many old drivers will notice that the brake disc of the car will rust, especially in rainy days or wet weather, after being parked for a long time in the wind and sun, this situation is even more serious.

Hello, as long as it rains and it rains for a few days, it will rust, just open it.

Hello! It is normal for the brake disc to produce a little rust when the vehicle is idle, and if the rust is very serious, it is recommended that you go to the 4S shop for inspection. So as not to have accidents, but also to give yourself a peace of mind.

Hello, it is normal for the brake disc to be rusted with water when the vehicle has been parked outside for a long time, but it is recommended to drive to the repair shop to polish it.

Hello, normal phenomenon, just run and run in for a while, thank you for your support to the car master, I wish you a happy life.

If you open it often, it's fine, and the inner circle won't rust.

It is normal for the brake disc to rust because the main component of the brake disc is iron (mainly steel), and it is normal for the iron to rust. After the vehicle is parked in a wet environment, or when driving after a car wash, or when driving on a rainy day, the brake disc can rust, and the metal will rust. If it is a slight rust, this will not affect the brakes of the car.

Normal, because the brake disc is iron, the car will rust if it is not driven for a long time.

The material of the brake disc is mostly cast iron, when it encounters wet and rainy weather, coupled with long-term wind and sun, if the vehicle is parked for a long time, its surface will naturally generate some rust, and these rusts will more or less affect the normal operation of the brake system, so it is necessary for us to dispose of the rust on the brake disc. 1. If there is only a slight rust on the surface, then yes.

It's normal for the brake disc to rust.

In fact, the brake disc is rusty, especially after the rain, and it is normal to see the limb staring at the rusty brake disc when you drive it again. Because the brake disc is cast iron, it will rust when it touches water. Moreover, it is a friction part, and it cannot rust.

When we brake, the rust is worn off.

Rust of brake discs is a normal phenomenon and has nothing to do with quality. However, it will still have a corresponding impact on the braking system, but don't worry too much. Everyone can handle this on their own.

If there is a layer of light rust outside, we can find a safe section of the road and apply the brakes a few times to deal with the problem.

If the rust is severe, we can dispense with it without the above method. At this time, we have to drive to the auto repair shop or 4S shop, ask the mechanic to remove the brake disc, and then sandpaper it to remove the rust on the outside.

The importance of brake discs:

In order to ensure safe driving and reliable parking, the reliability of the automobile braking system is becoming more and more important. Every car owner should pay special attention to safety issues, and do not cause serious consequences due to small losses.

When the owner encounters an emergency and steps on the brake pedal, the brake oil in the oil pipe is pushed, and finally, the brake oil is pushed to the brake caliper, so that the brake caliper squeezes the brake disc to form a braking force, and finally achieves the effect of deceleration or stopping. Therefore, the brake disc is the final link of the final "squeezing" to form the braking force, and its importance can be imagined.

When maintaining the vehicle, the owner must pay attention to the health of the brake disc, check the braking system at least once a year, and check the condition of the brake disc when replacing the tires.

<> "What is the cause of rusty brake discs in automobiles.

The main embodiment of the braking system is braking. Brakes are crucial to the safety of a car, and there are many accidents caused by brake failure in the news. The brake disc is the most important component in the brake system, so what is the cause of rusty brake discs in automobiles?

1.Rust on the brake disc is a common phenomenon. The brake disc is a long-term contact with humid air that is rotten and prone to oxidation, so there will be rust.

We can easily polish the rust by giving a few brakes during driving, which is the same as our sharpening principle, generally as long as the rust is not particularly serious or leaky, the car does not need to be too concerned.

2.Automobile brake pad materials include semi-metal brake pads, less metal brake pads, ceramic brake pads, NAO ceramic brake pads, NAO formula brake pads, etc., and the specific materials used are related to the model and its own needs.

Why is the ceramic brake pad material better?

1.Longer service life. Compared with other materials, ceramic brake pads have a longer service life, and ceramic brake pads can run 100,000 kilometers, and most of other materials can only run 3 40,000 kilometers.

2.The ingredients are better. Ceramic brake pads contain high-grade ceramics, large particles of graphite and other wear-resistant materials, almost no metal components, but other brake pads will have a particularly high metal content.

3.Safer. Because the ceramic brake pads are resistant to high temperatures, the friction index can still maintain a high level at high temperatures, which can give full play to the braking ability and be safer.