Automobile wheels are mainly divided into steel wheels and light alloy wheels according to their materials. Light alloy wheels are mainly made of aluminum alloy and magnesium alloy. In today's automobile market, steel wheels are rare, and most models use aluminum alloy wheels, that is, light alloy wheels.
The aluminum alloy materials used to make aluminum wheels include A356, 6061, etc., among which A356 is widely used as cast aluminum wheels. A356 aluminum alloy has the characteristics of small specific gravity and good corrosion resistance.
It is mainly composed of aluminum, silicon, magnesium, iron, manganese, zinc, copper, titanium and other metal elements, and aluminum accounts for about 92%, which is a mature aluminum alloy material. Aluminum alloy wheels are more suitable for passenger cars than steel wheels. At present, their manufacturing processes can be divided into three categories.
The first is casting, which is the process of choice for most car manufacturers today. Low-pressure casting is a process in which molten aluminum is filled into a mold under pressure and solidifies and crystallizes under pressure. In the same situation, compared with gravity casting, the internal structure of low-pressure casting hub is denser and stronger.
At present, low-pressure casting has become a process for producing aluminum alloy wheels, and most domestic aluminum alloy wheel manufacturers use low-pressure casting. Many car owners accidentally hit the side of the road or a corner when parking, scratching or causing the wheels to deform. Scratches are not a big problem, if the car hub is deformed or just falls off, it needs to be replaced.
Car owners should pay attention to daily driving to avoid scratching the hub due to luck. Pay attention to daily maintenance, check and clean the oil regularly, and there will be no major problems. Wash the car hub with clean water and wait for the hub to cool down before washing.
When the car is running, the wheel hub will rub against the tires and brake pads to generate heat. If you wash it with water immediately, the material of the hub will change, which can easily cause discoloration of the outer coating. Use soap and water to wipe off the oil.
Wheels are divided into aluminum alloy wheels and steel wheels, and aluminum alloy wheels are divided into forging and casting. The fatigue strength and bending strength of forged aluminum alloy wheels are much higher than those of steel wheels. Under the same environment, the heat dissipation coefficient of aluminum alloy wheels is three times that of steel wheels, and the maximum bearing capacity of forged aluminum alloy wheels is five times that of steel wheels.
Aluminum alloy wheels have the characteristics of light weight, tire saving, beautiful appearance and so on. At the same time, the safety of forged aluminum alloy wheels is much higher than that of steel rings. According to JIT standards, when the vehicle hits the threshold at 50 km/h, only the forged aluminum alloy wheels can keep running.
If the corrosion of the car hub is not repaired in time, the corrosion of the hub will be more serious, causing the tire to leak and shorten the service life. Timely repair after the rust of the automobile wheel hub is not only beautiful, but also increases the service life. Scratches, deformations and damages are unavoidable problems in the long-term driving of the car.
If the hub is not repaired and rebuilt in time, and if it is not dealt with for a long time, it is easy to cause traffic accidents and bring hidden dangers to the lives of yourself and your family. Wheel refurbishment will clean and reduce the rust, dirt and other pollutants on the surface of the wheel hub, which can effectively reduce the air pollution caused by vehicle driving.