It is not unfamiliar to mention aluminum alloy wheels. When buying a car, it will be weighed and compared by consumers as a more important reference indicator for appearance and configuration. In fact, I fully agree with this approach, because the aluminum alloy wheel has the advantage that the steel wheel can't match, and it has a great influence on the future driving. Our usual contact is at most the appearance of the wheel and its size. As we all know, if the increase of the tire width can bring better braking and handling performance to the vehicle, some consumers will also consider replacing the wider tire when the original tire tire reaches the service life. Then we need to understand the wheel hub. The width dimension and the tires it can match.
The manufacturing process and inspection process of aluminum alloy wheels are much more complicated than steel wheels, and the wheels of various automobile brands are manufactured by some professional manufacturers, so even the original wheels have their own brand manufacturers. Today, I chose six representative models from different manufacturers and nationalities from the compact car to see what secrets are hidden behind their aluminum alloy wheels. Before we explore, let's take a look at the knowledge of aluminum alloy wheels.
● Advantages of aluminum alloy wheels
The wheels are made up of wheels and tires that support the weight of the car. The size and width of the aluminum alloy wheel directly affect the size of the tire, and the size of the tire has an important influence on the performance of the vehicle. Aluminum alloy wheels have many advantages over steel wheels.
First, the heat dissipation is good: the heat transfer coefficient of aluminum alloy is three times larger than that of steel. The friction between the tire and the ground and the brake disc and the brake pad during the running of the car will generate a very high heat, which will cause the tire and the brake pad to age and accelerate the wear, and the braking performance will be abruptly attenuated due to the high temperature. There is also a risk of puncture in the tire. Aluminum alloy wheels transmit this heat to the air faster than steel wheels, increasing the safety factor.
Second, light weight: the proportion of aluminum alloy wheels is smaller than that of steel wheels, the average one is about two kilograms lighter than the same size steel wheel, and the total spare wheel can be reduced by eight kilograms; the lighter wheel can also reduce the starting and accelerating time. The resistance, the two work together to make the vehicle more fuel efficient.
Third, the precision is high: the precision of aluminum alloy wheel casting is much higher than that of steel wheel hub, and the roundness and unbalance weight are small; in addition, the aluminum alloy has small elastic modulus and better anti-vibration performance than steel wheel hub. These two can effectively reduce vehicle vibration and make driving more comfortable.
Fourth, more beautiful: aluminum alloy in high temperature liquid state fluidity and tension better than steel wheels, post-polishing and electroplating process to make it more beautiful and changeable appearance; surface anti-corrosion treatment and electrostatic powder coating It also makes it last forever.
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