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Yuhuan hub plastic branch
Garbage BMW 760Li "In the rubber layer of the tire, there is a ply composed of polyester cord and other materials, which is the stress skeleton layer of the tire to ensure the necessary strength and dimensional stability of the tire. Once the curtain fabric is damaged, the air pressure in the tire will be out of control, resulting in uneven stress on the outer tire, and the parts with high stress will protrude. So, the bulge appeared. "

So, how is the curtain cloth damaged? An Mingxian said that the research he and his colleagues have proved that Luya is one of the "killers". "Many car owners often have such an action: accelerate to the sidewalk, or when parking, the car stops at the uneven part of the road. As we all know, the damage to tires is very great. "

When a car runs on the road, the tires will deform. The higher the vehicle speed, the smaller the included angle with the kerb, and the more serious the deformation. We have tested that if a car inclines at a speed of 40km/h and an uphill angle of 40 to 70 degrees on the kerb with a height of 15cm, almost 100% of the tire plies will be damaged. In addition, if the car passes through some potholes at high speed, such as potholes or manhole covers, the tires will burst due to the instantaneous strong impact. Also, if the car is parked on the uneven road for a long time, the tire ply will be distorted for a long time, which is also unfavorable to the impact resistance of the tire. These are all caused by external forces on the tires, not the problems of the tires themselves. No matter how strong the tire is, it can't stand such a toss.

In that case, can't you get on and off while driving? Not necessarily. If you have to do this, there are some tips to protect the tires. If you keep the car body at 90 degrees to the road surface and drive as slowly as possible in a straight line, tire injuries will be greatly reduced. In addition, what car owners can do is to try to avoid using tires with small flat rate. "Flatness" is a tire term, which refers to the ratio of tread section width to tire section height. Generally speaking, under the condition of the same tire width, the lower the sidewall height (that is, the distance between the tread and the hub), the easier it is to bulge.

Suggestion: During daily driving and parking, try to keep the tires in a flat road environment. If you have to drive in bad road conditions, you must pay attention-slow down. Because the slower the vehicle speed, the lighter the adverse effects caused by the tire hitting the bad obstacles on the road surface. Finally, An Mingxian said that China car owners attach great importance to engine maintenance, but often ignore tire maintenance. "Regular tire pressure inspection, four-wheel alignment, tire cross-transposition, and good driving habits can greatly extend tire life."