Trouble with Pneumatic Tires
The emergence of pneumatic tires is a huge progress in the history of tire development. While bringing comfort to people, it also brings new troubles such as inflation, tire repair, and flat tires.
The air molecules are very small and will run out of the gaps between the rubber molecules, so pneumatic tires often have to be inflated. Pneumatic tires are easily pierced by sharp objects such as nails and glass, and sometimes burst tires, requiring tire repairs is very troublesome. If the light bicycle tire is flat, it is easier to push the tire repair. If it is a heavy electric bicycle or motorcycle tire, the tire will be exhausted and the tire will be repaired. . If the car tires are flat, it will be impossible.
High-speed tire puncture is very dangerous and often leads to serious traffic accidents. According to statistics, 70% of highway accidents in China are related to tires, and a car puncture has truly become a "super killer" on the highway. Due to the fast driving speed of the vehicle on the highway, the constant friction will increase the surface temperature of the tire and the air pressure inside the tire. For a "healthy" tire, the increase in temperature and the increase in pressure can be overcome, but Tires that are excessively worn or have obvious trauma and scratches can hardly withstand huge pressure, so the probability of the tire "causing trouble" is high.
According to the statistics of the transportation department, serious traffic accidents caused by flat tire leaks accounted for 46.8% of the total accidents. On the highway, this proportion is as high as 60% -70%, which is the highest proportion among various accidents. According to tests, the car has a flat tire accident when driving at a speed of more than 160 kilometers per hour, and the death rate of the occupants is 100%. A flat tire has been ranked as the top three killers of road traffic in China along with fatigue driving and speeding.
