Why did my car have a flat tire? The quality of Chery cars is too poor.

1. It's a flat tire. When the tire is punctured by nails or other sharp objects, the tire will leak air, which will lead to a puncture.

The tire pressure is too high. Because the car runs at high speed, the tire temperature rises, the air pressure rises, the tire deforms, the elasticity of the carcass decreases, and the dynamic load on the car also increases. In case of impact, internal cracks or puncture will occur. This is also the reason why a puncture accident will occur in summer.

3. The tire pressure is insufficient. When the car is driving at a high speed (the speed exceeds 120km/h), the tire pressure is insufficient, which is easy to cause the "resonance" of the carcass and produce a huge resonance force. If the tire is not strong enough or has been "injured", it will explode. Moreover, insufficient air pressure makes the tire sink more, and it is easy to cause the tire wall to land when turning sharply, and the tire wall is the weakest part of the tire, and the tire wall landing will also lead to a puncture.

4. It is a tire that "works with illness". After a long period of use, the tire is seriously worn, the tire crown has no pattern (or the pattern is too low), and the tire wall is thin, which becomes what people often say as "bare tire" or "uneven weak link" and will burst because it can't stand the high pressure and high temperature of high-speed driving.

Second, pre-puncture.

1. Radial tire is the first choice.

The carcass of tubeless tire and radial tire is soft, and the belt adopts fabric cord or steel cord with high strength and small tensile deformation, so this kind of tire has strong impact resistance, low rolling resistance and low energy consumption, and is most suitable for driving on expressway.

The tubeless tire has small mass, good air tightness and small rolling resistance. In the case of a flat tire, the tire pressure will not drop sharply and you can continue driving. Because this kind of tire can radiate heat directly through the rim, it has low working temperature, slow aging speed of tire rubber and long service life.

2. Use low-pressure tires as much as possible.

At present, almost all cars and trucks use low-pressure tires; Due to the good elasticity, wide cross section, large contact surface with the road surface, thin wall and good heat dissipation, the low-pressure tire improves the riding comfort and steering stability of the automobile, greatly prolongs the life of the tire and prevents the occurrence of tire puncture.

3. Pay attention to speed level and carrying capacity

Because of the different rubber and structure, each tire has different speed and load limit. When selecting tires, drivers should clearly see the speed grade marks and bearing capacity marks on tires, and choose tires higher than the maximum driving speed and bearing capacity of vehicles to ensure driving safety.

4. Maintain the standard tire pressure.

The life of tires is closely related to air pressure. If the driver finds that the tire is overheated due to high air pressure, it is absolutely forbidden to deflate and pour cold water on the tire to cool it down, which will speed up the aging of the tire. In this case, you can only stop, cool down naturally and step down. If the tire pressure is too low, the driver should inflate it in time and slowly check whether the tire leaks, so as to replace the tire with good air tightness.

Third, measures to deal with puncture

1. Don't brake suddenly, but slow down slowly. Because the sudden puncture of the tire at high speed will make the vehicle sideslip, and the sudden braking will make this sideslip more serious, which will lead to rollover.

2. While slowing down slowly, hold the steering wheel tightly with both hands and rotate in the opposite direction of the flat tire to ensure the vehicle to drive in a straight line.

Experience in dealing with puncture:

1. Always hold the steering wheel with both hands. ?

Don't brake suddenly after a flat tire? .

3. If the situation is controllable, please take out your hand, turn on the double flash for 0.5 seconds, and continue to hold the direction immediately after completion. ?

4. It is critical to observe the rearview mirror? .

5. Slow down and brake lightly. ?

6. If you stop at the emergency isolation belt, you need to immediately set a triangle at a distance of 100 meters from the following car. ?

7. Please check the tire pressure of the spare tire at ordinary times. If you modify the brakes, please prepare a spare tire that can fit into your big caliper.