How to prevent puncture effectively

According to incomplete statistics, traffic accidents caused by flat tires on domestic high-speed roads account for 70% of the total number of traffic accidents. Experts said that when a car was traveling at a speed of over 100 kilometers per hour, a puncture accident occurred and the death rate of the occupants was 100%. According to industry sources, in 2001, there were more than 6,000 traffic accidents in Guangdong alone due to breakdowns, and the death toll reached more than 4,600. Tyre bursting, fatigue driving and speeding are listed as the three biggest killers of road traffic in China. As domestic insurance companies do not make claims for puncture accidents, cherishing and paying attention to life and universal skills to avoid the risk of puncture has become an imminent social problem.

Daily maintenance

Usually pay attention to tire maintenance, often check the tire can play a role in eliminating hidden dangers.

Always check whether the wear sign (groove depth) of the police line has been reached. Normally used tires should be immediately replaced if worn.

Check the air pressure at least every two months. You can't just measure the amount of subsidence. If you find that the air pressure is not enough, you should find out the cause of the leak.

Always inspect the tires for any damage, such as nails or cuts, and repair or replace the damaged tires. Once the two front tires are repaired, they should be adjusted to the rear wheels in time to ensure that there are no hidden dangers in the two front wheels.

Remove the stones in the groove in time to avoid deformation of the crown;

Avoid tire contact with oils and chemicals.

Regularly carry out four-wheel alignment check on the vehicle. If it is found to be poorly positioned, correct it in time. Otherwise it will cause irregular wear of the tire and affect the mileage life of the tire.

The shelf life of rubber is generally about 5 years. The life of the tire is closely related to the conditions of use, storage, etc. The aging of the tire, the premature display of the tire sidewall DOT, the accidental tire damage, and abnormal wear cannot be continued.

All tires should be used within their service life (the service life of the tire should be 2-3 years or about 60,000 km). New tires should be replaced in time if the tire exceeds the service life or has been seriously worn.

I wonder if you have noticed that many professional tire shops or professional auto repair service shops now have nitrogen service for tires. If your tires are filled with nitrogen, you can not only prolong the service life of the tires, but also keep the tire pressure stable for a long time, reduce the chance of bursting tires, and increase the safety of vehicle driving.

Driving attention

The following points should be noted when you go up the highway:

Do not exceed the reasonable speed of driving conditions and traffic regulations.

Hold the steering wheel with both hands to avoid uncontrollable directions when foreign objects such as stones, bricks, wooden blocks, etc. are suddenly encountered on the expressway;

When a tire breaks, you must not slam on the brake when you are in a wrong direction, and an experienced driver will brake the side of the vehicle in a timely manner while correcting the direction until the vehicle stops.

On a rainy day, when one wheel of the front wheel is on a hard surface and the other wheel is passing through a high depth of 35 centimeters at high speed, if the direction is momentarily deviated, avoid correcting the direction that leads to traffic accidents.

Prevent puncture

There are two ways to prevent puncture:

At present, a new technology is popular in foreign countries. It is called the automobile tire pressure monitoring system, or TPMS for short. The basic principle is: Install a sensor on the hub or gas nozzle of the tire. The sensor includes a bridge-type electronic air pressure sensing device that senses air pressure, which converts the air pressure signal into an electrical signal and transmits the signal through a wireless transmitting device. From the monitor, the driver can clearly know the air pressure and temperature of each tire. When the tire pressure and temperature are different from the set standard value, the monitor will automatically alarm. The TPMS promptly alerted the tire when there was a danger sign, allowing the driver to take immediate measures to eliminate the accident in the bud. Since it is possible to monitor the tire pressure and temperature, it is possible to solve the danger of a punctured tire in high-speed driving of a car, which is particularly important for high-speed vehicles. In addition, TPMS has a fuel-saving effect. Many European and American automakers have equipped TPMS with their own models. At present, TPMS technology has been introduced into China and produced by domestic electronic technology companies. Vehicle owners can retrofit themselves.

Another way to avoid punctures caused by high temperatures is to charge the tires with nitrogen. First, nitrogen is an inert gas. The molecular free stroke is greater than oxygen, and the permeability in rubber is low. Therefore, the rate of decrease of tire pressure is greatly reduced, and the normal tire pressure time is maintained. At the same time, the volumetric expansion of nitrogen gas at the time of temperature change is much lower than that of the air containing moisture, thus reducing the probability of bursting. Second, nitrogen-filled tires can delay rubber aging. Nitrogen-filled tires run 26% more miles than air-filled tires. In addition, due to the absence of moisture, nitrogen protects the interior of the rim from oxidation. Third, the nitrogen-filled tires can be inflated according to the designed tire pressure to achieve the fuel consumption index of the automobile design. The nitrogen-filled tires are 2% to 10% more fuel-efficient than the air-filled tires. At present, every car beauty shop in the city has tire filling service. Each car charges 50~80 yuan.

Flat tire treatment

Sudden puncture treatment in driving:

If it is a front tire during driving, it will produce a powerful force that will make the car tend to puncture the side. Feeling that the steering wheel is heavy and difficult to control.

First, if it is a rear tire

The car will be in an unstable state and will produce a slight force that will make the car tend to puncture the tire. For the above two situations, you can take the following measures:

Hold the steering wheel

Try to keep the car straight. Sharp turns can cause the car to get out of control or roll over.

Do not step on clutch and accelerator pedal

Slowly press the brake pedal (do not suddenly brake, otherwise it will cause the car to rotate or roll over)

Drive the car to a safe place on the side of the road

Second, pay attention to the roadside tire replacement:

Stop the car at a safe place on the roadside and turn on the hazard light

Put the gear in first gear (automatic gear in P position), pull up the hand brake

When tightening the first nut after the tire change, the next nut should be screwed on, and so on. Do not screw nuts in turn clockwise or counterclockwise one-by-one. Otherwise, when the car starts, it may cause the wheels to loosen.