Those methods for explosive in summer

When the car is in summer, the car has become a lot of things most concerned about the owner. Because of the statistics, about 1/3 of traffic accidents on the highway is caused by tires, and the most important one of them is a puncture. So, the knowledge of the car in summer is endless. It is said that it is said that the tire pressure can be explosive, and it is also said that the nitrogen can explode, then the online explosion-proof timing is not reliable?

Speaking of the summer explosion, the first thought of many people's head is usually a tire pressure. Because everyone has learned the principle of thermal expansion, the gas is thermally expanded. If the air pressure in the tire is too high, it is certainly easy to puncture. Therefore, after many car owners enter the summer, they will naturally put the tire pressure drop 0.1-0.2 bar. However, this seemingly contemporary method is actually an anti-counter.

Because there are many wires in the inside of the tire to pull the entire tire. Drive in a state where the tire pressure is insufficient, due to the irregular deformation of the tire, the steel wire inside the tire is constantly deformed, and the steel wire is constantly deformed is that the wire temperature rises sharply, and it is easy to break the fracture. In addition, during the driving process, the tire temperature rises, the possibility of puncture will increase. When the tire pressure is 0.2, it is 0.2 Bar, which can effectively reduce the deformation of the tire inside the tire due to the deformation of the tire, thereby reducing the possibility of the puncture. So, the tire pressure is not reliable!

The nitride gas is also considered a "good" method in the summer explosion. Because nitrogen is an inert gas, the molecular free travel is larger than oxygen, and the penetration rate in the rubber is low. Therefore, the rate of tire pressure drop is greatly reduced, and the normal tire pressure is maintained. At the same time, the volume expansion is much lower than the air containing moisture during temperature change, thus reducing the chance of puncture.

However, we have done an experiment, charged nitrogen and air on the left and right tires on the same car. Then, each running 10km record the air pressure and temperature of the tire, finally the result is that the characteristics of "low thermal expansion coefficient of nitrogen, low thermal conductivity, slow temperature", are not obvious in practical applications. Therefore, the method of preventing the tire is not advisable in the summer.

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