For freight vehicles, resulting in vehicles with flat tires, there are generally the following main reasons:
1, overload.
At present, the domestic freight car overload transport situation is more common, many owners believe that freight vehicles are not overloaded can not win, I do not know, this is also one of the main reasons leading to flat tire accidents.
When the actual weight of the truck exceeds the maximum allowable load of the tires, the internal pressure of the tires will increase, and once it exceeds the sealing pressure of the tire valve, it will cause the tire to leak. As the rear wheel of the truck is mostly double tire design, if one of the tires leaks but the owner did not find in time, it will lead to the rear double wheel in the other tire load is too large, causing a blowout.
2, air pressure does not meet the standard.
Tire pressure does not meet the safety requirements of the situation are mainly two kinds, one is too high tire pressure, one is too low tire pressure.
Tire pressure is too high needless to say, just like overfilling the balloon, some owners in order to get greater load-bearing performance, when the tires are inflated, often exceed their air pressure value requirements, making the tires overload for a long time, once encountered overload, road bumps and other factors, it is easy to cause a tire blowout.
Tire pressure is too low is also dangerous, will lead to the tire and the road contact surface becomes larger, driving resistance is also correspondingly larger. When the vehicle is driving at high speed, the front and rear ends of the tire and road contact repeatedly, high-frequency, substantial completion of the bending and straightening action, it is easy to reach the fatigue limit, causing a tire blowout.
In addition, the tire pressure is too low will also make the relative displacement between the outer and inner tires of high-speed tires, the inner tire will cause some wear.
3, long time high speed driving.
Vehicle for a long time, high-speed driving, tires and road friction, generating a lot of heat, gathered to a certain extent will lead to the tire itself high temperature, on the one hand, easy to make the tire itself expand, poor pressure resistance, on the other hand, tire pressure is also easy to rise.
Secondly, the vehicle for a long time at high speed, the tire and the road contact surface for a long time in a relatively stable state, tire strain surface difficult to regulate, after a long time also easy to lead to internal pressure over the tire strain surface load strength, resulting in a tire blowout.
4, long and frequent braking.
Vehicles for a long time, frequent use of wheel-end brakes, the brake system friction components will gradually generate high temperature, so that the bottom of the tire valve rubber seal deteriorates, the chances of a tire blowout is higher.
5, cold water to tire cooling.
It is recommended that the use of water cooling device owners on the departure of the air pressure drenching open, do not wait until the tire temperature rises and then cool the tires, if the tire temperature is too high when using the water drenching device, the tire outside the temperature drop, rubber shrinkage, the tire inside but also maintain a high temperature and pressure, the tire inside and outside the force is different, easy to cause a blowout and brake drum deformation cracking.
6, tire internal injuries
Tire inner tube has ever had problems repairing, its sealing and load capacity is far less than the unpatched tires. Secondly, repaired inner tube will generally use rubber gaskets, originally to avoid repairing the tire in the outer tire perforation "bubble", but this gasket in the state of the vehicle load and will produce wear on the inner tube repair, if often overload driving or meet the road bumps, it is easy to make the tire blowout.
7, tire surface excessive wear or corrosion
Excessive wear on the surface of the tire load capacity and compressive strength is far behind the normal tire, in hot weather, over speed, overload, bumpy road conditions are very easy to burst tires.
Similarly, the surface of the tire is corroded by oil and other substances are also easy to cause a blowout, this is because the tire is made of rubber, its chemical composition is organic substances, such organic substances are easily soluble in gasoline, oil and other organic solvents, causing the cracking phenomenon, such tires do not have the conventional load capacity, road driving is very easy to occur when the tire blowout.
Summer explosion-proof tires recommended:
1, often check the tire pressure, especially after tire inflation and before leaving the car, the tire pressure control within the standard range;
2, try to fill the tires with nitrogen, nitrogen is an inert gas, does not contain water, does not contain oil, will not produce oxidation of the tires, and will not corrode the rims, can maintain long-term tire pressure stability, reduce the chances of blowout;;
3, the above-mentioned factors that cause vehicle blowout should be strictly avoided, not overloaded, not over speed, choose the appropriate auxiliary braking device and mode;
4, at least once a week to check the state of the tires, tire tread depth, tire wall whether there is aging, tire damage, tire tread in the presence of foreign objects;
5, avoid long hours of high-speed driving, run on two hours try to stop and rest for about 10 minutes to give the tires natural cooling time, do not drive for a long time resulting in higher and higher temperatures
