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What Causes the Noise When Braking a Car?

1 Answers

LaNadia

07/29/25 3:47pm

Reasons for noise when braking a car: 1. Severe wear of brake pads, usually caused by brake pads reaching the warning line or being completely worn out, with the noise mostly being a sharp metal friction sound; 2. Noise caused by the material of the brake pads, generally harder brake pad materials are more likely to produce this type of noise; 3. Improper installation of the brake system causing noise. Car brake pads, also known as car brake linings, refer to the friction materials fixed on the brake drum or brake disc that rotates with the wheel. The friction lining and friction block within them bear external pressure to generate friction, thereby achieving the purpose of vehicle deceleration. Car brake pads are generally composed of steel plates, bonded heat insulation layers, and friction blocks. The steel plates are coated to prevent rust, and the coating process uses an SMT4 furnace temperature tracker to monitor the temperature distribution during the coating process to ensure quality.

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