Some cars have brake discs that rust easily, is it because of the mileage run?

Updated on Car 2024-06-29
17 answers
  1. Anonymous users2024-02-12

    It is not because of the mileage run, the brake disc is easy to rust and is related to many factors such as the material and type of brake disc and the daily use environment.

    Some people find that the car brake disc is easy to rust, thinking that it is too much mileage, in fact, it is not the case, this situation has a great relationship with the material of the brake disc Now the material of the brake disc is divided into carbon fiber ceramic brake disc and metal brake disc two kinds, carbon fiber ceramic this material will not rust, it will not rust and corrode during use, and the metal brake disc is easy to be oxidized, corrosion is also prone to rust.

    Although the ceramic carbon fiber brake disc will not rust, it is expensive to manufacture and has poor braking ability in low temperature environments, so it is rarely used in family cars nowadays. However, in order to increase the corrosion resistance of the brake disc, some manufacturers will make the metal brake disc carbon fiber treatment, combining the advantages of the two, this brake disc is not easy to rust during use.

    Different types of brake discs are also an important reason why brake discs are prone to rust, because metals are more likely to oxidize and rust in high temperature environments. There are two types of brake discs: physical brake discs and ventilated brake discs. Ventilated brake disc can improve the cooling performance of the brake disc and provide better braking ability, this kind of brake disc has a good ventilation effect and will not be affected by high temperature for a long time, it is also a brake disc that is not easy to rust, and the ordinary solid brake disc has poor heat dissipation ability, it is easy to rust.

    Improper daily use is also the result. The main cause of rusty brake discs. After a long time of wear and tear of the brake disc, the protective layer on the surface will be scratched or broken, and then the oxidation will be increased, and the rust may also be often sudden braking or high-speed braking, which will also accelerate the wear of the brake disc, which will make the brake disc in a high temperature state, and the oxidation phenomenon will be more obvious, and it is easy to rust the surface of the brake disc.

    When the vehicle is driving in a humid environment for a long time, the rust of the brake disc is more obvious, especially in the rainy season in summer. This is a relatively normal phenomenon that has little to do with the mileage of the car.

  2. Anonymous users2024-02-11

    No. At present, the vehicles on the market except for a few high-end and special vehicles, brake discs are made of cast iron, as long as it rains or the air humidity is large, often stop for a moment The brake disc will appear rusty, the parking time is longer, and a slight sound of rusty brake disc and brake pad separation will be heard when starting again, this situation is not a problem with the quality of the brake disc, but is determined by the material of the brake disc, and this rust will basically not affect the normal brake.

  3. Anonymous users2024-02-10

    It is not because of the mileage of the run, the use rate of some cars is not high, which will lead to rust of the brake disc, and it is easy to rust when it is often placed in a humid environment, so it is necessary to pay attention to the maintenance of the car.

  4. Anonymous users2024-02-09

    No, it's because the frequency of using the car is particularly small, plus the lack of good oil, good gasoline, and insufficient engine combustion.

  5. Anonymous users2024-02-08

    Therefore, is it normal for the steel disc of most vehicles on the market to be corroded in a humid environment? Nature is a normal condition, and iron rust is a definite effect after a period of time in a humid environment; Sometimes brake pads can rust overnight, or even after the car has been washed, so look at this rust with a normal mind.

    As the puzzle describes, there are some cars that are likely to be freshly made, but not very easy to rust? If this situation is encountered, it is normal, just look for the cause in the natural environment; The natural environment is dry, damp and cold, and the harm caused to the brake pads is different; For example, in the northwest, in a dry natural environment, it is very likely that the brake pads will never rust; However, during the rainy season in southern China, most of the brake pads will rust, so the problem depends on the natural environment!

    Brake disc rust is very easy to deal with, as it is very easy to cause, people only need to drive, give a few feet of brakes to polish the rust polished down, which is the same principle as everyone grinding, generally only need the rust is not serious do not care, after grinding off a few brakes, it will not affect anything; If the vehicle is placed in a humid environment for a long time, causing rust is more serious, the problem of uneven surface of the brake pad may occur, which is likely to cause certain interference to the braking system at this time, so it is necessary to overhaul it, polish and polish the surface of the brake pad, but no matter what kind of situation, the rust of the brake disc is not a big deal, a more normalized problem!

    According to the brake disc rust we can understand many problems, such as everyone in the case of buying a car, pay a deposit, the marketing takes us to the warehouse to buy a car, in general, the vehicle placed in the warehouse may be rusted, if we see a car brake pads are very bright, then the car has undoubtedly been given out recently, and the brake system has been stepped on, so the brake disc rust is not necessarily wrong, it also releases a lot of information content, and we through the level of brake disc rust, You can read a lot of information content very directly!

  6. Anonymous users2024-02-07

    The less frequently used the car, the easier it is to rust, because this part of the car is not used frequently, after being oxidized, it is not rusted through the driving process, and the car that is not used for a long time is parked in the wet, high pH place is easy to rust, and the above situation is just to pull out and run for a while, and do not worry too much.

  7. Anonymous users2024-02-06

    According to the different materials, the brake disc is divided into two types: carbon fiber ceramic brake disc and metal (gray iron) brake disc. We know that carbon fiber ceramics are a material that does not rust, while gray iron is prone to corrosion. Of course, carbon-ceramic brake discs are rarely used in family cars due to high manufacturing costs and poor braking power at low temperatures, so the reason for the material may be relatively small.

    However, in order to increase the ability to resist thermal attenuation, some manufacturers use carbon fiber treatment for metal brake discs, which are less prone to rust based on the advantages of the two.

  8. Anonymous users2024-02-05

    Mainly because of the different materials, some are iron plates, and some are ceramic plates.

  9. Anonymous users2024-02-04

    Cars need to use the brakes frequently while driving. There is a brake disc part in the braking system. Many people find that brake discs can rust, and some cars have a hard time doing that. What is the reason?

    The material used for brake disc casting is 250 standard gray cast iron. Generally speaking, the probability of rust is the same, but the probability of rust will only be affected according to usage habits and environmental factors. For example, the brake disc of a car is not eroded by rain and parked in a relatively dry city, the probability of rust is very small, and the probability of rust of some cars eroded by rain and water will increase exponentially.

    What's more, even if the brake disc rusts during frequent use of the vehicle, it will wear out during braking. At this time, the brake disc is not rusted, but the rust is directly ground off by the brake pads. It is normal for the brake disc to rust and it will not affect the braking effect.

    If you hit the brakes while driving after rusting, it will disappear. Why do brake discs rust? This is mainly related to the material from which the brake discs are manufactured.

    First, carbon fiber brake discs, I can't say too much, after all, they will only be used in racing. The second is the ceramic graphite disk, which has good thermal conductivity and heat resistance, and is also relatively moderate. Thirdly, semi-metallic brake discs, containing iron and copper, have moderate thermal conductivity, acceptable heat resistance, and most importantly, are cheap.

    For example, semi-metallic brake discs are used in ordinary family cars. For example, the brake discs of German cars and American cars will rust soon after washing, while the brake discs of Japanese cars will not. However, from this point of view, it does not represent the quality of the car.

    This is due to the different choices of different car manufacturers for requirements and driving experience.

    If the car's brake disc continues to drive after wading through water, it will not rust. If you park somewhere after getting wet or just after washing, the next day the brake disc will rust and squeak while driving. If the rust is severe, it may cause the brake discs and brake pads to be directly connected together.

    At this time, the oil will make a bang to separate the brake disc and brake pads, but these are not a problem, as long as a few brakes can be used. Millions of car purchase subsidies.

  10. Anonymous users2024-02-03

    Normally, if the car is parked in a place with high humidity for a long time, the brake disc will rust; After driving out on a rainy day, the brake disc will also rust; And the brakes will also rust after washing, which is not a problem with the quality of the brake disc, but because the material of the brake disc is steel, and because there is no anti-rust protection because of frequent friction, as long as it is parked in humid weather.

  11. Anonymous users2024-02-02

    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.

  12. Anonymous users2024-02-01

    Brake discs. Rust certainly has an impact on the car, but it does not mean that the brake disc should be treated immediately after it is in effect, depending on the severity of the rust. Braking is mainly a buffer deceleration role of the car from high speed to stationary state.

    The friction between the brake disc and the wheel hub reduces the rotational speed of the tire, and at the same time reacts this force on the propeller shaft.

    and gears to achieve the purpose of deceleration. <>

    It is precisely because of this situation that the brakes are on the outside of the car and need to be in constant contact with the outside environment, especially close to the tires, so sometimes it is easy to rust when there is some water or wet areas. If the scope of rust is relatively small, there is no need for special treatment for the brake disc, which is a very normal phenomenon. But at this time, if you find that the rust of the brake has been more serious, such as covering the entire brake disc, and some rust slag will fall off the touch.

    At this time, you will find that the car is shaking and vibrating when braking. Or when you step on the brakes in a stopped state and find that the brake disc has a change in displacement, you need to overhaul the brake disc. <>

    If the rust on the brakes is very severe, it is difficult to clean it by simply removing the rust. This is mainly due to the fact that the degree of rust is not the same during the cleaning process. If you only clean the rust on the surface, then after cleaning the physical repair, you will find that the brake disc is uneven at this time.

    When braking, there is a situation where the car feels like it is stamping under braking, rather than showing a linear change. <>

    Therefore, it is best to replace all the brake discs due to brake vibrations caused by uneven thickness, which can not only increase the comfort of the car, but also ensure safety. Therefore, it is best to maintain the brake disc once every two months to remove the rusty part on the surface, so as to extend the life cycle of when.

  13. Anonymous users2024-01-31

    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.

  14. Anonymous users2024-01-30

    It will lead to an increase in fuel consumption, cause the steering wheel to vibrate, cause discomfort in the process of driving, cause safety hazards, and also lead to brake failure.

  15. Anonymous users2024-01-29

    Rusty brake disc will have an impact on the car, and it will be prone to traffic accidents, so when the brake disc is rusty, it should be replaced or cleaned in time, and more inspections should be carried out in daily life, in addition to checking the brake disc, it is necessary to check the brake fluid.

  16. Anonymous users2024-01-28

    There will be a certain impact, which will lead to spark plug blockage, will lead to insensitive brakes, will lead to rear-end collisions, and will also cause traffic accidents.

  17. Anonymous users2024-01-27

    Rust on car brake discs is a normal phenomenon because the brake discs are metal and have no protection, and they are directly exposed to the air, resulting in oxidative rust. Except for some high-grade ceramic brake discs, there will be no rust. However, the brake disc of most cars is made of cast iron, which is exposed to the outside for a long time, and is ravaged by rain, snow and harsh environments, and rust will inevitably appear on the surface, which will affect the braking effect of the car and need to be dealt with in time.

    Is it normal for car brake discs to rust? This is very common and normal, because the brake discs are metal and have no protection, so they are directly exposed to the air, causing oxidation and rust.

    1.If there is only a slight rust on the surface, it can be removed by continuous braking while driving, of course, on the premise of ensuring safety and not affecting public transport. While driving, gently press on the brakes to "polish" the surface of the friction between the brake pads and the brake disc.

    2.If the rust is very serious, it is best to drive the vehicle into the repair shop, remove the brake disc, polish the rust with sandpaper, check whether there is any abnormality on the surface of the brake pad, and conduct a road test after proper installation. Drive at a speed of 70 km/h on a flat road and brake several times to ensure that there is no abnormality.

    If there is still jitter, it means that the surface of the brake disc is uneven and needs to be further polished and leveled or replaced as appropriate.

    Theoretically, the maximum wear limit of the brake disc is 2 mm, and the brake disc must be replaced with a new one after use. However, in actual use, most car owners do not strictly implement this standard.

    The frequency of replacement should also be measured according to your own driving habits, and the general measurement criteria are as follows:1Look at the frequency of brake pad replacement.

    If the frequency of replacement of the disc is very high, it is recommended to check the thickness of the brake disc more, after all, the cost of the disc is relatively fast, it means that the brake is used a lot, so it is necessary to check the brake disc regularly.

    2.According to the wear and tear situation: because the brake disc in addition to normal wear, there are also because of the quality of the brake pad or brake disc and the wear caused by foreign objects in the normal use process, if the brake disc is worn by foreign bodies in some deep grooves, or the disc surface is worn out of deviation (some places are thin, some places are thick), it is recommended to replace, because this kind of wear and tear will directly affect safe driving after the deviation.

    Photo by Q&A) Model Y Model 3 Model X AION V Ideal One Xpeng P7 2019

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