D2038 Brake Pads

The composition of the car brake pads

The new braking system of the automobile is a device that forcibly decelerates or even stops the running car according to the driver's request, and at the same time keeps the speed of the vehicle traveling downhill stable. Brake pads and brake discs are important parts in the car's brake system. Its quality depends on the brake pads and brake discs, so good brake pads and brake discs are safe for driving.

The automobile new brake pad is mainly composed of a back plate, a bonding heat insulation layer, a friction material layer, a sound absorbing sheet and an attachment. The friction material layer is composed of a friction material and an adhesive. When braking, the friction material rubs against the brake disc to generate a braking force, thereby decelerating the vehicle. The bonded thermal insulation layer is composed of a material having a low heat transfer rate for the purpose of heat insulation. Due to the friction between the brake pad and the brake disc, the friction material layer will be gradually worn out, so the friction material layer of the brake pad should be replaced in time after using the limit, otherwise the back plate will directly contact the brake disc, which will not only reduce the braking effect, It even caused damage to the brake disc or malfunction of the brakes.

Car brake process

The braking system of a car is a system that helps the vehicle to slow down or stop. It is the key to ensuring the normal driving of the vehicle and ensuring the personal safety of the passenger. The quality of the brake system and the maintenance status of the brake system are very important for the car. The braking force of a car is determined by the torque generated when the hardware of the brake system is rubbed, and is related to the contact area, the friction coefficient, and the diameter of the brake disc. The braking process of a car is complicated and not just as simple as stepping on the brake pedal.

The entire process of car braking involves a lot of energy conversion. When the driver steps on the brake pedal, the brake pedal pushes the master cylinder downward, and the brake fluid in the master cylinder is sent to each cylinder, which is the piston in the brake caliper. When the piston is pushed, the brake pads will rub against the brake disc, which in turn generates a braking force that slows or stops the car.

When to replace the car brake pads

In recent years, with the improvement of people's living standards, automobiles have become the main means of travel for people, and more and more people use cars directly or indirectly. Some friends, even if they don't understand the car, hope to gain more knowledge of the car through the experience of the car. Some parts of the car are not used for a long time, and need to be replaced in time for a certain mileage or time, such as the car's oil, wiper and brake pads.

The most intuitive way to check the brake pads yourself is to “see” – that is, to see the thickness of the brake pads. A new brake pad will gradually become thinner as it rubs continuously during use. The technician suggested that when the thickness of the brake pad is only about 5mm left, the owner will increase the self-test frequency and be ready to replace it. Of course, due to the design of the wheel hub, individual models do not have the conditions for visual inspection, and it is necessary to disassemble the tires to complete. Generally, the brake pads will have alarms (some are alarm lines), which is the limit of brake pad replacement. If the thickness of the brake pads is close to the alarm, it must be replaced.