Among the various noises in cars, cooling fan noise is one of the important noise sources, which mainly consists of two aspects: rotational order noise generated by the fan blade cutting air and eddy current noise generated by the air shield. Due to high-speed operation and long-term operation under -40℃~80℃, the deformation of the fan blade will directly affect the noise.

Functional contribution of mica powder in cooling fans:

1. Excellent dimensional stability, anti-warping, can effectively improve wind noise and reduce energy consumption;

2. Improve temperature resistance and improve high temperature creep;

3. High rigidity, reducing the swing amplitude of the fan blade when rotating at high speed;

4. Excellent fatigue resistance can improve the service life of the product.