As a key component of modern rail transit braking systems, synthetic brake pads possess the following notable advantages:
1. Performance advantages
Adjustable friction performance
By adjusting the formulation of composite materials such as resin and graphite, the friction coefficient can be precisely controlled to remain stable at different speeds (for example, low-friction composite brake pads can avoid the risk of sliding during low-speed braking).
Excellent wear resistance
Its service life can be 3-10 times longer than that of cast iron brake shoes, and it wears evenly without eccentric wear.
II. Safety and environmental protection characteristics
Spark-free braking
The characteristics of non-metallic materials prevent sparks from being generated during braking, thereby reducing the risk of fire.
Its weight is only 1/3 of that of cast iron brake shoes, reducing the load on vehicles.
Cost advantage
The raw materials are cheap and the production process is simplified, resulting in a lower overall cost compared to metal brake shoes.
IV. Compatibility improvement
Protecting the wheels: It reduces wear on the wheel tread and extends the service life of the wheels.
High adaptability: With a high temperature resistance of up to 377°C or higher, it is suitable for a wide range of operating environments.
Technical comparison:
Traditional cast iron brake shoes are prone to generating sparks and producing loud noise, whereas composite brake pads have addressed these issues through material innovation.
Although powder metallurgy brake pads exhibit superior high-temperature resistance (reaching 1000℃ instantaneously), composite brake pads offer a better cost-performance ratio for speed scenarios below 200km/h.
