What are the front brake pads of a car
Youdaoplaceholder0 The front brake pads of a car are an important part of the car's braking system. Their main function is to convert the kinetic energy of the vehicle into thermal energy through friction, thereby achieving deceleration and stopping of the vehicle. Brake pads are usually made up of steel plate, adhesive heat insulation layer and friction blocks, the heat insulation layer is made of non-conductive material to insulate the heat generated during braking, the friction blocks are made of friction material and adhesive, and the braking effect is achieved by rubbing against each other during braking .
The types and materials of brake pads
Brake pads can be classified into various types based on their formula technology, including semi-metallic, low-metallic, asbestos and ceramic types, etc. Different types of brake pads are suitable for different vehicles and usage environments. For example, brake pads for disc brakes and shoes for drum brakes differ in structure and performance .
Replacement cycle and maintenance methods
The degree of wear of brake pads directly affects the braking effect and driving safety. When the brake pads are severely worn, the braking distance will increase, and it may even lead to brake failure. Therefore, regularly checking the wear of brake pads is the key to ensuring driving safety. Generally speaking, the replacement cycle of brake pads depends on factors such as driving habits, road conditions and vehicle load. It is recommended to check the wear of the brake pads every certain mileage or at least once a year, and replace severely worn brake pads in time .
Youdaoplaceholder0 The main function of the front brake pads of a car is to convert the kinetic energy of the vehicle into thermal energy through friction, thereby achieving deceleration and stopping of the vehicle . When the driver steps on the brake pedal, the brake caliper pushes the brake pad against the brake disc, generating friction to slow the wheels .
The structure and working principle of brake pads
Brake pads are usually composed of steel plates, adhesive heat insulation layers and friction blocks. The insulation layer is composed of non-heat-conducting materials, with the aim of providing insulation. The friction block is made of friction material and adhesive, and when braking, it is squeezed against the brake disc and brake drum to produce friction, thereby achieving the purpose of decelerating and braking the vehicle .
The influence of brake pad performance on driving safety
The performance of brake pads has a significant impact on driving safety. Good quality brake pads can significantly reduce braking distance, experimental data show good quality brake pads can reduce braking distance by 5-8 meters, which is enough to avoid a rear-end collision .
If the brake pads wear out severely, the braking distance will increase significantly and may even cause brake failure, seriously threatening driving safety .
Therefore, timely inspection and maintenance of brake pad wear and tear is essential for driving safety .
The common causes and solutions of front brake pad failure in automobiles are as follows: :
Youdaoplaceholder0 Brake pad wear : When brake pads wear to their limit, they make a "squeaking" sound of metal friction. When the thickness of the brake pads wears down to only 2-3mm, the metal warning plates inside will rub against the brake discs, making a sizzling sound. Brake PADS SHOULD BE REPLACED IN TIME at THIS TIME, OTHERWISE MAY CAUSE BRAKE DISCS to BE scrapped .
Youdaoplaceholder0 Abnormal wear of brake pads or brake discs : Brake discs and brake pads may cause abnormal friction noise due to material or design mismatch. For example, calibration deviations of the parameters of the electronically controlled braking system can lead to abnormal friction sounds. The solution is to replace and adjust the clearance .
Youdaoplaceholder0 Foreign objects mixed in : A hissing sound is produced when small stones or sand are mixed between the brake pads and the brake discs. The solution is to remove the foreign object .
Youdaoplaceholder0 Rusty or uneven brake discs : Rusty brake discs in the rain or after washing the car make a rustling sound when starting the vehicle. This is a normal phenomenon. After driving for a while, the rust wears off and the sound disappears. But IF the surface of the brake disc is uneven, it will squeal, in this case the brake disc needs to be replaced .
Youdaoplaceholder0 Oil leakage in the slave pump : Oil leakage in the slave pump can cause the brakes to become soft. Check and replace the slave pump .
Youdaoplaceholder0 Freezing of vacuum tubes : Freezing of vacuum tubes in winter can cause the brakes to harden. Check and deal with the vacuum tubes .
Youdaoplaceholder0 Rusty guide pins : Rusty guide pins can cause the brakes to harden. You need to remove the wheel, maintain the guide pins and apply grease .
Youdaoplaceholder0 Aging brake tubing : Aging rubber tubing can cause brake failure. It is necessary to check and replace the tubing regularly .
Youdaoplaceholder0 Precautions and routine inspection methods :
Youdaoplaceholder0 Check brake pad thickness regularly : Brake pad thickness should be checked regularly in vehicles with a mileage of more than 30,000 kilometers, especially on stony roads .
Youdaoplaceholder0 Check the water content in the brake fluid : Test the water content in the brake fluid every two years or 40,000 kilometers. Replace the brake fluid if it exceeds 3% .
Youdaoplaceholder0 Remove foreign objects : Regularly check and remove foreign objects between brake pads and brake discs .
Youdaoplaceholder0 Maintenance of guide pins : Inspect and maintain the guide pins annually and apply grease to prevent rusting of .
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