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Why Does the Brake Squeal When Lightly Pressed at Low Speed?

1 Answers

McJesse

07/24/25 7:03pm

Brake squealing when lightly pressed at low speed may be caused by sand or other foreign objects between the brake pads and brake discs, or by excessive wear of the brake pads, which exposes the fixed points of the friction material and causes friction with the brake discs or brake drums, resulting in noise. Below is relevant information about brake pads: 1. Function of Brake Pads: Automotive brake pads, also known as brake linings, refer to the friction material fixed on the rotating brake drums or brake discs of the wheels. The friction linings and blocks bear external pressure to generate friction, thereby achieving the goal of vehicle deceleration. 2. Material of Brake Pads: Automotive brake pads are generally composed of steel plates, adhesive heat insulation layers, and friction blocks. The steel plates are coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure the temperature distribution during coating meets quality standards.

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