In terms of braking systemThe influence of brake disc coating hardness: If a certain hardness coating (such as ceramic coating, etc.) is used on the brake disc, higher hardness can enhance the wear resistance of the brake disc, making it less likely for the surface to be worn out by the brake pads, resulting in grooves or excessive wear during frequent braking processes. This helps to maintain good contact between the brake disc and brake pads, ensuring stable and reliable braking force output, avoiding safety hazards such as longer braking distance caused by brake disc wear, and playing a key role in whether the car can stop in a timely manner in emergency braking situations.
Correlation of brake pad coating hardness: Some brake pads may also have coating treatment. A coating with appropriate hardness can improve the wear resistance of brake pads, reduce material detachment during use, and enable brake pads to continuously and effectively exert frictional braking, ensuring the normal operation of the braking system and thus ensuring driving safety.
In terms of chassis and suspension system
The effect of coating hardness on chassis components: Some key components of the automotive chassis, such as the frame and swing arm, if their coating hardness is sufficient, can better resist the impact of road stones, erosion and wear caused by sand and gravel, and road water accumulation. The integrity of the chassis component structure ensures the stability and handling of the vehicle during driving. For example, during high-speed driving or turning, the chassis will not loosen or deform due to excessive wear of components, preventing the vehicle from losing control and ensuring driving safety.
The influence of coating hardness on suspension system: The coating on shock absorbers, springs and other components in the suspension system, with appropriate hardness, can enhance their wear resistance, enabling them to play a buffering and supporting role in the long term, maintain the normal driving posture of the vehicle, avoid safety problems such as vehicle deviation and difficult handling caused by damage or performance degradation of suspension components, especially when passing through bumpy roads or emergency avoidance situations, ensuring the safe driving of the vehicle.
In terms of body structure
The indirect impact of vehicle body coating hardness on collisions: Although the surface coating of the vehicle body may not seem directly related to collision safety, in fact, a coating with appropriate hardness can protect the metal plates of the vehicle body from minor scratches, corrosion, and other damages in daily life, maintaining the overall structural integrity of the vehicle body. In the event of a collision accident, the body structure can better absorb energy and disperse impact forces according to design requirements. If the body is corroded or severely worn due to insufficient coating hardness for a long time, it may not achieve the expected safety protection effect during the collision, affecting the safety of passengers inside the vehicle.
The correlation between the protection of occupants in vehicles: For example, in some rollover or side collision accidents, the strength of the vehicle body needs to rely on a good structural state to ensure, and the protection of the coating on the vehicle body helps to maintain this structural state, reduce the compression injury of occupants caused by vehicle deformation, and indirectly improve the safety performance of the vehicle.
Tire related aspects
Potential impact of tire coating hardness: Some high-performance tires may have special coatings whose hardness can affect the tire's grip, wear resistance, and other properties. A coating with appropriate hardness can enable tires to better contact the ground under various road conditions, maintain good friction, facilitate normal starting, acceleration, and braking of the vehicle, and reduce safety risks such as tire blowouts caused by excessive tire wear, ensuring the safety of the car during driving.
In summary, coating hardness has an undeniable impact on the safety performance of automobiles by affecting the performance and condition of multiple key parts of the vehicle.

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