Why do brake discs get scratched
There will be many problems in the use of brake pads. I don't know if you have paid attention to them. For example, where do the scratches on the brake disc come from. Today, I will tell you about the origin of the scratches.
There will be many problems in the use of brake pads. I don't know if you have paid attention to them. For example, where do the scratches on the brake disc come from. Today, I will tell you about the origin of the scratches.
1. There is a problem with the raw materials of the brake pads. Among all brake pad materials, the most easily scratched disc is artificial graphite. The hardness of artificial graphite itself is very soft, and the hardness of the impurity silicon carbide in it is close to that of diamond, which is enough to scratch the brake disc. For the artificial graphite used in brake pads, most small factories use recycled waste graphite (recycled graphite will never be used in big brand products). Silicon carbide becomes a very harmful substance.
2. The brake pad attachment will also draw the brake pad out of the groove. Some brake pads have alarm pads (alarm pads are generally made of stainless steel). When the brake pads are ground to the position of the alarm pads, the alarm pads will rub against the brake disc and emit a harsh scream to remind the owner to change the brake pads. . If the car owner doesn't pay attention to the sound and let the alarm pads and brake pads grind, the brake disc will be scratched. This kind of pit generally only has one groove, and the brake pad can be replaced directly if it is not serious. When this happens, the position of the groove in the general brake disc is fixed, which is the position where it contacts the alarm pad.
