What happens when the car is hot?
1, high temperature leads to car paint: car paint exposed to the scorching sun is like human skin. Exposure may fade or reduce luster, and may produce "lesions" such as cracks, water marks and corrosion marks.
2, high temperature tires and flat tires: driving at high temperature in summer, I am afraid that the problem that has to be mentioned is tires. When the weather is hot, the road surface temperature is often as high as 50 ~ 60. Tires work under high load under such harsh conditions, and the wear is aggravated. The affected tire pressure also greatly increases the chance of puncture. Not paying enough attention to tires is very easy to bury safety hazards for driving.
3, the interior is easy to age at high temperature: the car has been parked outdoors for a long time, and the smell of plastic burning when opening the door is difficult to enter the car. In this case, these plastic smells are often emitted when the sun burns the interior of the car. Under long-term exposure, the interior of the car (such as the dashboard covered with lines) will be more prone to aging and deformation, and in serious cases, it will affect its normal work.
4. Long-term exposure of the sealing ring is easy to age and crack: it is not difficult to find the existence of the sealing ring at the edge of the door and skylight. These humble sealing rings are often overlooked by car owners when maintaining their cars in summer. If the sealing ring is exposed to the sun for a long time, it is easy to age and crack, and the sealing performance is greatly reduced, which not only affects the sound insulation effect of the car environment, but also causes water leakage and water seepage in serious cases.
5, the engine is prone to problems: in high temperature environment, the temperature difference of the engine cooling system is small, the heat dissipation ability is poor, and the engine is prone to overheating. Due to the high outside temperature, the temperature difference between the engine coolant and the atmosphere becomes smaller, which leads to the reduction of heat dissipation in the cooling system and the overheating of the engine, which will lead to a series of problems.
First, it will reduce the inflation coefficient of the engine. The higher the temperature, the smaller the air density, and the actual air intake of the engine will decrease. Due to the overheating of the engine, the temperature in the hood is higher and the inflation capacity of the engine is reduced.
Then high temperature will cause abnormal combustion of the engine. The high atmospheric temperature leads to the high temperature of the mixed gas entering the cylinder, the high temperature of the whole working cycle of the engine and the low heat dissipation efficiency of the radiator, which makes the engine in an overheated state, and the mixed gas at the end of the combustion chamber is heated more, which intensifies the pre-combustion reaction and is prone to deflagration.
6. The oil system is prone to problems: at high temperature, a series of problems may occur in the oil and corresponding parts, which will accelerate the wear of parts and seriously affect the service life of the engine. At the same time, the higher the temperature, the higher the temperature in the range hood, and the easier it is to produce air resistance. This is more likely to happen in hot areas, especially when the car is climbing at full load or driving at low speed for a long time.
7. The battery voltage will be unstable at high temperature: when the battery temperature is high, the electrode will be oxidized due to the aging of the insulating layer, especially the negative electrode, which will produce white oxide at the electrode tip, thus causing the battery voltage to be unstable. At this time, it is necessary to inspect and maintain the battery to protect it and prevent it from leaking prematurely.
8. Car air conditioners are easy not to cool: in summer, they are exposed to the sun for a long time, and the engine runs for a long time, so the water temperature is easy to be too high. At the same time, the cooling effect of radiator will be weakened, which will affect the automobile air conditioning system.
People's Network-Eight Harms of High Temperature to Cars