Brake pads, also known as automobile brake pads, are one of the relatively key parts of the brake system software. Braking is carried out by friction, and then the brake pedal is achieved. Is the brake system software smart for the vehicle? The safety of the vehicle is very important, and it cannot be lacking. According to the friction, the speed of the wheel is alleviated, so as to ensure the safe driving of the vehicle. Let's take a closer look at the "Matters to Pay Attention to in the Whole Process of Brake Friction Pad Application and Replacement".
The friction resistance of the brake pads is harmful to braking?
If the friction resistance of the brake pads is too high or too low, it will endanger the braking characteristics of the vehicle. Especially when the vehicle needs emergency braking during the operation of the car, braking failure will occur if the friction resistance is too low, and the higher the friction resistance will cause the tires and wheels to lock up, which will cause the car to drift and deviate, which is essential for safe driving. Constitute a serious hazard.
According to the national industry standard, the suitable operating temperature of the brake pad is 100~350℃. However, when the temperature of many fake and inferior brake pads reaches 250°C, the friction resistance will drop sharply, and the brake will completely fail at this time. Generally speaking, according to the SAE specification, the brake friction lining manufacturer will use the FF rating index, that is, the friction rating index is 0.35~0.45.
What is the relationship between the service life and strength of the brake pads?
There is no certain correlation between the service life of the brake pad and the surface strength. However, if the surface strength is high, the total contact area between the brake pad and the brake disc is small, which usually harms the service life. The key elements that endanger the service life of brake pads include strength, compressive strength, and wear resistance of wear-resistant materials. Under normal conditions, the service life of the front brake pads is 30,000 km, and the service life of the rear brake pads is 120,000 km.
How can it cause chattering when braking?
It is usually caused by the deformation of the brake friction lining or the brake disc, which is related to the material, processing accuracy and application deformation of the brake friction lining and brake disc. The key reason is the uneven thickness of the brake disc and the brake disc. Poor concentricity of the moving drum, uneven damage to the brake friction lining, and its thermal deformation and hot spots.
In addition, the deformation or improper installation of the brake disc and the unstable friction resistance of the brake pads can also cause vibration during braking. In addition, if the vibration frequency caused by the brake pads during braking and the suspension system cause resonance, it will also cause vibration.
Phone: +86-574 63498399
Fax: +86-574 63498588
Address: Sanjiangkou Industrial Park, Zhouxiang Town, Cixi City, Zhejiang Province
Scan to contact us