Self repairing technology tire safety

In the process of driving, the tires will be worn to different degrees due to different road conditions and the level of the owner's technology. At the same time, the change of air temperature may cause the occurrence of unstable tire pressure or tire burst. With the gradual improvement of consumers' safety awareness, more and more attention has been paid to tires with high safety performance in the market.

Safety tire is also known as "zero pressure tire", and its English is run flat tire, which means a tire that can walk even if it is flat. Compared with the safety tire, the ordinary tire will suffer from rapid air leakage after being punctured by foreign objects, the sidewall will collapse, and the bead will finally leave the rim. If it is light, it cannot continue to drive, and if it is heavy, it will cause the vehicle to overturn.

After the safety tire is punctured, it will not leak or leak very slowly, and can maintain the driving profile. The tire bead is still fixed on the rim, thus ensuring long-term or temporary stable driving of the vehicle. In short, this kind of tire can not only improve the safety guarantee on the way and reduce the risk factor, but also avoid many unnecessary troubles.

According to the above description of safety tires, it can also be clearly seen that the safety tires on the market can be roughly divided into two types: one type is the tire with air shortage protection technology, and the other type is the safety tire with self repair technology.

The so-called "air shortage protection" refers to a kind of tire with specially reinforced side wall, transverse reinforcement structure and heat-resistant composite rubber inside, which is also known as "explosion-proof tire". At present, this technology can make the tire run at a speed of 80 km / h even if it is suddenly deflated, so as to ensure that the vehicle can park in a safe area.

However, generally speaking, the tire for air shortage protection is not suitable for all people: first, the tire with this function cannot be repaired after being damaged, and it must be replaced with a new tire, which is costly; Secondly, the tire itself has high hardness and poor comfort.

The self repairing technology can quickly repair the damage by relying on the built-in special coating to ensure the air pressure in the tire. Meanwhile, it can also solve the problems in the comfort, suspension requirements, price and other aspects of the tire for air shortage protection, and better ensure the driving performance.

Taking the crossrider safety tire as an example, the Double Star Tire R & D team added a layer of intelligent nano materials on the inner wall of the tire to form a special protective cover: when the puncture object pierces the carcass from the outside, the nano smart materials will tightly wrap the puncture object to prevent gas leakage; When the puncture object is pulled out from the carcass, the nano intelligent material can automatically gather at the puncture hole to prevent gas leakage and ensure driving stability.