The hub is a little bruised. Does it matter?

In fact, I really suggest that you repair the wheel hub scratches in time, otherwise you will regret it in the end. Let me give you a summary and analysis of some wheel hub injuries that you often encounter.

1. There are scratches on the wheel hub surface.

Scratches on the wheel hub surface are probably the most common. After all, the hub was running on the road, and it was accidentally scratched when parking and reversing into the warehouse. Or the road conditions are bad, there are too many pebbles on the road, the speed is too fast, and it is normal for pebbles to jump up and scratch the surface of the wheel hub; If the wheel hub surface scratch is not serious, it can be ignored. But if the surface scratches are deep, I suggest you repair them in time. Because when the hub leaves the factory, there will be a protective paint on the surface to protect the aluminum alloy material of the hub from oxidation. If the surface of the hub is badly scratched, the protective paint will definitely be worn off, resulting in the combination of oxygen in the air and aluminum of aluminum alloy materials. Mild oxidation on the wheel hub surface will turn yellow and the surface paint will fall off. If it is heavy, it will hurt the aluminum alloy material of the hub, and the hub will be scrapped.

2. There are scratches and notches on the edge of the hub.

The causes of scratches and nicks on the rim of the hub are almost the same as those on the upper hub surface. The same small scratches can be better. If there are cracks or serious scratches, it is recommended to repair them in time. The edge of the hub is badly scratched, and the surface is not protected by varnish, so the edge of the hub will be corroded. In severe cases, the hub tire is not tightly combined, resulting in slow air leakage; Of course, the gap at the edge of the hub will also cause the hub tire to be not tightly combined, which will lead to the slow leakage of the hub. As a result, you can't run long-distance and high-speed, which is a safety hazard.

3. Surface corrosion of wheel hub

Many people will say that the surface of the wheel hub will corrode if it is scraped, but how can it corrode if it is not scraped? In fact, hub corrosion is also related to hub surface technology. Generally speaking, hubs electroplated by water are the most susceptible to corrosion. But also corroded from the inside. If it's not serious, it's not obvious on the surface. Some high-end cars such as GMC, Bentley, Rolls-Royce and Escalade will be equipped with water-plated wheels. After a long period of use, you will find that the corrosion of the hub can be seen from the inside out, and if it is serious, the electroplated layer on the surface will fall off. In order to prolong the service life of the hub, it is suggested that if the hub is corroded by water electroplating, the hub process should be replaced in time. The water electroplating process of the hub will pollute the air, so the water electroplating process of the hub is not allowed now. It can be changed into vacuum environmental protection electroplating or other hub surface processes.

4. The wheel hub is deformed and cracked

Let's talk about hub deformation first: hub deformation is divided into inner deformation, outer deformation and hub spoke deformation. By the way, the knowledge of the bearing capacity of the hub on the hub spokes will not affect the safety of the whole hub as long as the hub spokes are not deformed or broken. The deformation and cracking of the wheel hub edge should be corrected in time to avoid potential safety hazards (at present, the deformation and repair of the wheel hub are corrected by professional shaping machines, and the molecular structure of the wheel hub aluminum alloy is not changed, so the majority of car owners can rest assured); But if the spokes of the hub are deformed and cracked, don't hesitate to buy the hub again. However, the deformation of the wheel hub edge is basically caused by the pit crossing, speed bump or too fast speed when the road conditions are bad. Remind drivers and friends to control the speed in time when driving.

Let's take a look at the cracking of the wheel hub: the reasons for the cracking of the wheel hub: a. The wheel hub of the explosion-proof tire: Because the tire wall of the explosion-proof tire is hard and the cushioning force is relatively weak, when the tire is strongly impacted, the force on the tire will be directly transmitted to the wheel hub, so it is easy to cause cracking; B large-size hub: due to the low flattening rate of large-size hub, the cushioning force of tire is insufficient. Similarly, when the tire is hit by an external force, it will also transfer the external force to the hub, which will lead to cracking. So at this time, we warmly remind drivers and friends that we must pay attention to the pit when driving, and speed bump or slow down when the road conditions are bad.

Therefore, whether the wheel hub is deformed or cracked, it is basically caused by people not slowing down when crossing the pit, so everyone should try to avoid driving too fast and must slow down when encountering the pit.

Finally, to sum up for everyone: the deformation and cracking of the outer edge of the hub should be repaired in time to avoid affecting its own safety; If the spokes are deformed and cracked, don't hesitate to change them quickly; If there are serious scratches on the wheel hub surface, it should be repaired and renovated in time to prevent the wheel hub from being scrapped due to corrosion and oxidation. It can not only achieve the aesthetic effect, but also avoid the scrapping of the hub and generate more expenses. Of course, in order to make the hub more fashionable, we can consider changing the color of the hub or electroplating the hub during maintenance.