Tires are easy to wear, usually in strengthening the tire management, maintenance, conservation at the same time, we must understand and avoid the use of environmental damage to the tire in order to extend its service life. This article according to the tire test data were summarized, the purpose is to cause the owners to use attention.

1. Climatic conditions and tire wear

The relationship between the external temperature and the tire temperature: Generally speaking, the normal working temperature of the tire is 95 ℃, when the outside temperature is O ℃, allow the tire temperature to 95 ℃; when the outside temperature is 40 ℃, allow the tire temperature to 55 ℃; tire tread temperature increased by 1 ℃, the wear strength increased by 2%.

The relationship between the external temperature and tire pressure: tire in the case of standard air pressure, the ambient temperature increased by 5 ℃, tire pressure increased 5 ~ 10kPa; external temperature rise of 10 ℃, tire pressure increased 20 ~ 30kPa; tires in the same road, The same speed, the ambient temperature increased by 5 ℃, tire mileage decreased by 10% to 15% outside temperature increased by 10 ℃, tire mileage decreased by 45%.

2. Pavement condition and tire wear

The same type of tire, the same type of tires, on the secondary road mileage than in the first-class highway 20% to 25%, in the three-way highway mileage is less than 40% to 45% of a highway.

In the gravel road on the road only asphalt pavement, concrete pavement of about 60%. The mileage of the mountain road is generally 15% -20% less than the same kind of road in the plain area.

3. Travel speed and tire wear

The same vehicle, the same tires, the same road surface, in the same climate conditions, the car driving speed for each doubling (from 50km / h increased to 100km / h), tire mileage decreased by 60%. The higher the speed, the faster the tread temperature rise. When the tire tread temperature exceeds 95 ℃, the carcass cord is destroyed, the tire has the risk of explosion.

4. Air and tire wear

When the tire pressure is less than 10% of the standard pressure, its mileage decreased by 6%; lower than the standard pressure of 20%; travel mileage by 17%, lower than the standard pressure of 50%, the mileage reduced by 52%; When the barometric pressure is 10% higher than the standard barometric pressure, the mileage is reduced by 5%; the mileage is reduced by 9% when the standard pressure is 20% higher than the standard pressure; 40% lower than the standard 50%.

5. Load and tire wear

If the carrying capacity exceeds 10% of the rated load, the tire mileage is reduced by 8%; carrying capacity of more than 20%, driving distance reduced by 35%; carrying capacity of more than 50%, the mileage is reduced by 59%; carrying capacity of more than 100% The mileage will be reduced by 80%.

6. Vehicle technical condition and tire wear

The front beam angle increases by 1 °, the tire wear increases by 7%; the front beam angle increases by 2 °, the wear is increased by 12%. Front wheel camber angle increased by 1 °, tire wear increased by 10%; camber angle increased by 2 °, wear increased by 23%.

Wheel bearings loose, brake unilateral, bite, left and right steel spring elasticity uneven, spoke deformation, twisting, frame and rear axle bending, are very easy to speed tire wear.

7. Driving technology and tire wear

The tire wear into the deep groove or slippery on the muddy road surface, tire wear increased by 10% -12%; vehicle driving in the car, the tire wear and tear increased by 5% to 7% Swings and sharp steering, tire mileage decreased by 5% to 10%.