How do solid tire manufacturers judge tire service life and wear

Generally speaking, the life of a tire in normal use is 4 to 5 years. After 5 years, even if the wear of the tread pattern is small, it will be replaced, because the rubber of the tread will age over time, and many small cracks are caused by The cause of a puncture.

However, the relevant state departments have not yet made special regulations on the shelf life of tires, because the service life of tires will vary according to different tire rubber formulas, different vehicle environments and driving habits. Therefore, we need to be more careful when driving. Tire aging is also a sign. For example, most of the aging parts of the tread appear from the edge parts such as the sidewall or the shoulder. Long-term sun and rain will cause small loops on the rubber surface. These cracks indicate that the bearing capacity and quality of the tire at this time are both It has already begun to decline, and in order to reduce the risk of puncture, replace it in advance.

In addition to aging, tires are also subject to natural wear. Therefore, the tires of the factory will mark the wear limit on the sidewall before leaving the factory to indicate the real-time wear status of this tire. For tires without wear marks, we can also use calipers to measure. Generally, tires with a groove depth of less than 1.6 mm can no longer be used, because the drainage performance and puncture resistance of the tire will be greatly reduced at this time. In addition, if a tire has been repaired three or four times, then we recommend that you switch this tire to a non-driving wheel or rear wheel to reduce the risk of puncture.

Of course, the life of a tire still has a lot to do with whether it is used normally or not. First of all, we must ensure that the tires are always under the normal tire pressure, too low or too high tire pressure will bury hidden dangers to the tire safety. I need to remind everyone not to believe what you see with your eyes, because most cars are now equipped with tubeless low-pressure radial tires. Sometimes they may feel a little flat from the outside, but it does not mean that they must be inflated. Professional tire pressure The instrument is the method to detect tire pressure. In addition, when testing the tire pressure, it must be in a cold tire state. If it is a hot tire, the measured value must be subtracted by 0.3PA to be accurate.