Aluminum alloy wheel:wheel,also known as rim,English name WHEEL.The aluminum alloy wheels are wheels made of aluminum alloy.It has the advantages of fast heat dissipation,safety,light weight,energy saving,good comfort and beautiful appearance.Automobile wheels are composed of wheels and tires,which support the weight of the entire vehicle,allowing the vehicle to run on the road,which has a significant impact on the performance of the vehicle.

　　Hubs,also known as wheel discs,are parts of tires mounted on wheels.They are divided into steel wheels and aluminum alloy wheels.The former is used for heavy-duty cars and ordinary cars,and the latter is generally used for high-and mid-level cars.Aluminum alloy wheels are a new variety developed in the mid-1980s.It is made by a special low-temperature casting process,which can integrate the spokes and rims into one and cast into various fancy shapes.The technology was popularized in the field of cars in the early 1990s,and now aluminum alloy wheels are a sign of measuring the appearance quality of cars.

　　The car is equipped with aluminum alloy rim,which has the advantages of fast heat dissipation,light weight,good comfort and beautiful appearance.

　　1.Heat dissipation means that when the car is driving at high speed,the friction between the tire and the ground will produce a higher temperature,and the friction between the brake disc and the brake pad will also produce a higher temperature.Under such high temperature,the tire and the brake pad Both will age and accelerate wear,reduce braking efficiency,increase tire pressure,and accidents like tire puncture and brake failure.The heat transfer coefficient of aluminum alloy is three times greater than that of steel,which can quickly transfer the heat generated on the tires and brake discs to the air,avoiding the various disadvantages generated by the wheels under high-speed operation.

　　2.Light weight means that the weight of aluminum is smaller than that of steel.On average,each aluminum alloy rim is about 2 kg lighter than steel rims.A car can reduce the weight by 10 kg with 5 wheels(including a backup wheel)..Reducing weight means saving fuel.For car designers who are trying every means to pursue lightweight cars,using aluminum alloy rims is a means to achieve their goals.

　　3.Good comfort means that the aluminum alloy rim is a precision casting,the finished surface reaches 80%to 90%,the roundness and unbalanced weight are very small,especially the aluminum alloy has a small elastic modulus and vibration resistance Well,it can reduce the body vibration during driving and improve the comfort of the whole vehicle.