Views: 98 Author: Site Editor Publish Time: 2019-12-03 Origin: Site
Tire burst refers to the phenomenon that the tire deflates in a very short time (generally less than 0.1 second) due to sudden loss of air. Tire blowout is one of the frequent accidents in summer. Most of them are caused by the improper maintenance of the tires by the owners.
Relevant statistics show that 10% of the traffic accidents on the highway are caused by tire failure, and one of them is tire burst, which accounts for more than 70% of the total accidents caused by tire failure.
If the tyre is punctured by iron nails or other sharp objects and is not punctured temporarily, the tyre will leak and cause a tyre burst.
Due to the high-speed driving of the car, the temperature of the tire increases and the air pressure increases. Then the tire deforms, the elasticity of the tire body decreases, and the dynamic load on the car also increases. In case of impact, internal crack or tire burst will occur. This is also the reason why the blowout accident will occur in summer.
When the car is running at high speed (the speed is more than 120km / h), the tire pressure is insufficient, which is easy to cause "harmonic vibration" of the tire body, thus causing huge resonance force. If the tire is not strong enough or has been "damaged", it is easy to blow out. And the lack of air pressure makes the sinking of the tire increase, which is easy to cause the tire wall to land when taking a sudden turn, and the tire wall is the weakest part of the tire, which will also lead to tire burst.
After the tire is used for a long time, it is seriously worn, the crown has no pattern (or the pattern is too low), and the tire wall is thin, which has become the "bald tire" as people often call it or the uneven "weak link". It will blow out because it can't bear the high pressure and high temperature of high-speed driving.
Fast driving speed and high temperature will make tires produce higher heat. In particular, the high temperature in summer, the tire cooling is relatively slow, the possibility of tire burst is greater.
Generally, it is not easy to cut or prick the tire when driving on the paved road. If driving on the uneven and gravel road, it is easy to be rolled by hard metal or other hard objects, resulting in tire burst.
When driving for a long time under low tire pressure, the tire will suffer from uneven wear and wavy deformation of the tread, which will lead to internal damage of the tire and burst of side wall bending and breaking. At this time, the contact area between the tire and the ground will increase, the friction force will increase and the temperature of the tire will increase. Serious heating will not only consume fuel, but also reduce the handling and comfort of the vehicle, which is easy to cause tire rolling. On the contrary, too high tire pressure will reduce the contact area between the tire and the ground, increase the pressure on the tire and reduce the grip, which will not only affect the ride comfort and driving stability, but also cause damage to the suspension system.
When the car is driving at high speed, there is not enough space to absorb the vibration air pressure caused by the bumpy tire and the air thermal expansion during the driving process if the tire pressure is too high. In the high temperature season, the tire constantly rubs against the road surface and heats up. The tire heat dissipation is relatively slow, and the anti pulling force drops. At this time, the air pressure rise in the tire causes the tire to become thinner. When the tire body exceeds the pulling force of the rubber material at the limit of strength, the tire is easy to burst.
The tyre side is marked with the year of production and the service life is generally within 6 years. The main component of tire material is rubber. Rubber belongs to unsaturated high molecular hydrocarbon, which is easy to absorb oxygen in the air and oxidize. In particular, vulcanized rubber has certain air permeability, and oxygen is easy to enter the interior to oxidize. In addition, tires exposed to sunlight for a long time are prone to aging (volume expansion, gum loosening, elasticity reduction). Therefore, if the service life is exceeded, no matter how worn the tread is, it must be replaced. Otherwise the blowout accident may occur at any time.
The occurrence of tire burst, to a large extent, is related to the tire pressure of automobile tires. Therefore, a kind of safety technology "TPMS real-time monitoring tire pressure", which is mainly used to prevent tire blowout, appears on the market. "TPMS" is the abbreviation of "tire pressure monitoring system". The system can be divided into two types: "direct TPMS" and "indirect TPMS", which can monitor tire pressure timely, to a large extent, can prevent tire blowout and promote driving safety.
