The aluminum alloy wheel has many advantages compared with the steel wheel hub.
1. Heat dissipation: the heat transfer coefficient of aluminum alloy is three times larger than that of steel. In the process of moving car tire and ground friction and brake disc and brake pads will produce high heat, this situation will lead to tyre aging and accelerated wear, the brake performance due to high temperature and rapid attenuation, the tyre pressure also increases the risks existing tire. The aluminum alloy hub can carry the heat into the air faster than the steel hub, and increase the safety factor.
2, weight: Aluminum Alloy wheel less than steel wheels, the average ratio of the same size steel wheel weight two kilograms, remove the spare wheel total weight eight kg; lighter wheels can reduce the start-up and acceleration of the resistance, both of them make more fuel-efficient vehicles.
3, high accuracy: the precision of the aluminum alloy wheel casting is much higher than that of the steel wheel hub, and the roundness and the unbalanced weight are smaller. Besides, the elastic modulus of the aluminum alloy is small, and the anti vibration performance is better than that of the steel hub. These two can effectively reduce vehicle vibration and ride more comfortably.
4, more beautiful: aluminum alloy in high temperature liquid state flow and tension is better than steel hub, later polishing and electroplating process to make it more beautiful and changeable appearance; surface anti-corrosion treatment and electrostatic powder coating also make it as old as new.