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Some cars have brake discs that rust easily? In fact, most of the car's brake discs will rust, because as long as it is steel brake discs will rust, and almost 95% of the brake discs on the market are steel, so will rust very few high-end cars have ceramic brake discs, carbon ceramic brake discs and carbon carbon brake discs, of course, the latter two already belong to the category of supercar.

Very few cars actually have ceramic plates! Brake discs are divided into carbon fiber ceramic brake discs and metal (cast iron) brake discs according to different materials. We know that carbon fiber ceramics do not rust, gray cast iron is easy to corrosion, of course, carbon fiber ceramic brake discs due to high production cost, poor braking force at low temperature, home cars are rarely used, so the material reason may be relatively small.

But some manufacturers in order to increase the heat inhibition ability, the metal brake disc is processed into carbon fiber, combined with the advantages of the two, the brake disc is not easy to rust, our ordinary cars are basically using semi-metal brake disc, but there is a phenomenon we are looking at, German and American cars are washed, is such as car wash, the brake disc rust.

Whether there will be a brake disc, but this does not represent the good or bad of the car, mainly the requirements of different car manufacturers on car production and driving experience, the choice of brake disc material, ceramic brake disc, this kind of brake disc is equipped with supercars.

Ceramic brake disc is not ordinary ceramic, but at 1700 degrees of high temperature synthetic carbon fiber and silicon carbide, the biggest advantage of enhanced composite ceramic is that it can effectively resist thermal decomposition, high speed braking effect is excellent, heat resistance is many times higher than ordinary brake disc, but the price is dozens of times higher than cast iron brake disc, generally tens of thousands of.

The present anticorrosion technology is nothing more than coating, surface treatment, electroplating, chemistry, cathodic anticorrosion and other methods, and the body anticorrosion is nothing more than the "coating" process, galvanized or oil injection on the car body, chassis and other items isolated oxidation reaction, but they can be used in the brake disc?

Of course not, this is often the place of friction, if the material is not replaced, then the thick coating will wear, not to mention reduce friction, a long time not to rust the car, because a long time not to use the brake disc on the area of a lot of dust, dust, a long time to fall on the brake disc dust will absorb moisture from the air.

When it comes into contact with oxygen in the air, oxidation will occur, which is called rust. Iron is easy to oxidize in the condition of sufficient air (oxygen) and moisture. Of course, cars that are not used for a long time are also easy to rust when parked in a humid place with high pH.

In fact, it is not that some brake disc is not good to brake, but that some people use the car more, such as those friends who go to work every day, their brake disc is not rust opportunity? It's normal for a car that's not used very often to have rusty brake discs in this kind of rusty weather.

As long as the car is used again, the rust will be automatically removed, no problem, so it is not like the subject said that some of the brake disc is of good quality and does not rust, but has a direct relationship with the use of the environment, under normal circumstances, the rust of the brake disc has little impact, in fact, when driving a few brakes can wipe the rust off.

When the brake disc rust is serious, the normal brake can not achieve the perfect effect of rust removal, when the brake disc rust is very serious, it will lead to the surface of the brake disc uneven, in this case the brake will lead to the body shake, the owner will obviously feel the abnormal steering wheel, the body and the brake pedal, in this case, you have to go to the special workshop to remove the rust of the brake disc.