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What exactly are run-flat tires?

The run-flat tire is called "flat-flat tire", and the name "run-flat tire" is nothing more than the name of the manufacturer to promote this type of tire. If you want to say that the name is to deceive riders, then you need to know how many people do it for It's not an exaggeration to use its name willingly to take out the money from the tires to replace the run-flat tires. In fact, explosion-proof tires can help you continue to drive a certain speed for a certain distance in the case of flat tires or insufficient tire pressure, without the occurrence of "non-puncture."

What are the benefits of "run-flat tires"?

1. Good protection. In high-speed driving, a puncture is a situation that the driver is afraid to encounter. Therefore, you must be cautious in the choice of tires, but don’t say that if you have a "run-flat tire", it will not puncture. In fact, it will only make you It is not so dangerous when a tire bursts, because the instant transfer after a tire burst is likely to cause the vehicle to lose control, and because the wall of the flat tire is more supportive and tough than ordinary tires, the wheel hub can be used when the tire bursts. Combine with tires to support the vehicle and avoid too dangerous. Moreover, in general tires that encounter sudden punctures or air leaks, they can only rely on the contact of the wheel hub with the ground, without the support of the tire, because the general tire will leave the wheel hub without tire pressure.

2. Ability to "support" for a long time. Ordinary tires will release gas. Don't think about how long it will take for your tires to find a suitable position. Explosion-proof tires do not immediately deflate, because their tire structure is very different, so it can help you maintain a certain distance in the case of a flat tire. Even under the conditions of zero tire pressure and 80KM/h, some better run-flat tires can run for 3 hours. I believe that with such a long time and distance, even if the size of China is large, you should be able to find a repair shop.

3. More elastic than ordinary tires. Because run-flat tires use a structure that strengthens the sidewall, their durability is destined to be better than ordinary tires. Generally, the sidewall of an ordinary tire is composed of several layers of cord fabric. The sidewall is relatively thin. When driving, we can’t just drive on the road. Sometimes we will encounter potholes or steps. Even on the road, there will be stones, which are really small. Generally, it will not cause much damage to the tire, but once the sidewall of an ordinary tire collides, it is easy to bulge or rupture, all of which depend on the sidewall. Moreover, the sidewall of the tire is reinforced, so the usability of the tire is also strengthened virtually, making it more elastic than ordinary tires.


2021/07/09 16:02

Generally speaking, the life of a tire in normal use is 4-5 years. After 5 years, it is best to replace it even if the tire pattern is very small, because the rubber on the tread will age over time, and there will be many small cracks. It is the cause of a flat tire.

For example, most of the aging parts of the tread begin to appear from the edge parts such as the sidewall or the shoulder. The long time in the sun and rain will cause small loops on the rubber surface, which shows that the load capacity and quality of the tire at this time have been It starts to decline, and it is best to replace it early to reduce the risk of puncture.

In addition to aging, tires will wear out naturally. Therefore, the tires of the factory will be marked with wear marks on the sidewalls before leaving the factory to show the real-time wear of the tires. At the same time, we can also use calipers to measure tires without signs of wear. Generally, tires with a groove depth of less than 1.6 mm can no longer be used, because the drainage and puncture resistance of the tire will be greatly reduced at this time. In addition, if a tire has been repaired three or four times, then we recommend that you better replace it with a non-driving wheel or a rear wheel to reduce the risk of puncture.

Of course, the life of a tire is closely related to whether it is used normally. First, we must ensure that the tires are always under normal tire pressure. Too low or too high tire pressure will bury hidden dangers for tire safety. It must be reminded that don't believe your eyes to see it, because most cars nowadays are equipped with low-pressure radial tires without inner tubes. Sometimes they may feel a little dent from the outside, but this doesn't mean you have to lose air. Professional tire pressure instrument is the only way to detect tire pressure. In addition, when detecting tire pressure, it must be in a cold tire state. If it is a hot tire measurement, the measured value must be reduced by 0.3PA to be accurate.

The service life of automobile tires is directly related to the personal safety of our drivers and passengers. I believe everyone knows how high the risk factor of a flat tire is. In addition to a puncture, if the tire is severely worn, it will also cause the car to have poor grip and easy to slip. In addition, when it rains or snows at low temperatures, road icing will seriously threaten our personal safety, so drivers should pay attention.


2021/07/08 10:45

I believe many friends have heard such a sentence: after parking, you must let the tire back, otherwise it will cause damage to the car. But many friends do not know why the parking tire to return to the right, do not return to the right will cause what damage to the car. Now to tell you why you have to return to the right tire parking.

Steering, tires, suspension will all be affected.

The first is the tire, as an object in direct contact with the ground, the tire bears all the weight of the vehicle. When the tire returns, the tread of the thick part of the tire contacts the ground, but if the direction is not returned, the stress point of the tire will become part of the tread and shoulder. The tire shoulder force for a long time will cause a lot of pressure on the side wall of the tire, and the tire wall is usually the fragile part of the tire. The unilateral tire wall pressure is too large, which will cause the tire deformation.

It is possible that a deformed wheel will not matter much at low speeds, but if the speed increases, a deformed tyre will become a bomb that explodes at any moment, posing a serious threat to driving safety.

The second affected is the steering system, if the steering wheel does not return when parking, the wheels will pull the steering lever can not return, at the same time the steering lever gear and rack are also under stress. As time goes on, these parts will age or deform at an accelerated rate. If it deforms, the car may go off track and the tires may be damaged.

The third is the automobile suspension system. In the case of the wheel righting, the force of the four suspension is relatively uniform, but when the steering wheel is not righting, the wheels of many models will appear inclination, and the force of the suspension will also change. However, the elastic pillar in the suspension, the rubber sleeve and some rubber shock cushions in the suspension system are in deformation state for a long time, which will lead to the damage and deformation of the suspension. After the suspension deformation, there will be a variety of problems, such as abnormal noise and more likely to roll over in extreme circumstances.

Generally speaking, when parking, it is necessary to put the tires back as far as possible, otherwise it will cause certain damage to the tires, steering system and suspension. But meet special circumstances also need to be flexible, such as parking in the slope of the road on the need to hit the tire in one direction, to avoid the vehicle sliding back.


2021/07/07 14:39

The phenomenon that tires affect the comfort of car driving

There is no doubt that the driving comfort of a vehicle is affected by many reasons. In addition to auto parts, it also includes the driver's own control habits, sitting posture, etc. But if you look at the tires alone, it is likely that the tires are not suitable or there are some problems:

1. Loud noise; abnormal noise in the car while driving is uncomfortable. This situation should be related to the condition of the car. No matter how good the sound insulation of the car is, the "tire noise" is more or less transmitted to the car. If you feel that the "tire noise" is too large at this time, you need to check whether there is any problem with the tires, or use silent tires to reduce the noise from the source.

2. The vibration is very strong; sometimes when encountering bumpy road conditions, the vibration is always too large, even on flat roads, there are fragmentary vibrations, which is very uncomfortable. Similarly, among other reasons, the tires should also be inappropriate, resulting in unstable driving.

3. The handling is not smooth; the discomfort that this brings to the driver is probably because the tires are not suitable for daily travel. When turning and accelerating, they will feel a little out of control, which is often called "floating" and so on.

4. Water skiing; in rainy days, especially heavy rain, the car will make the driver feel like sliding. This feeling is not only uncomfortable, it also makes people worry and fear losing control. At this time, you need to consider whether it is caused by the decreased drainage performance of the tires.

The influencing factors of tires on driving comfort.

If you pursue comfort in daily travel, you can learn more about the reasons why tires may affect tires. We will analyze the above phenomena:

1. As mentioned in the above uncomfortable driving phenomenon, tire noise cannot be completely avoided regardless of the size, but if it is not the tire that has a problem, it may be that the tire specifications are not suitable or the installation is wrong.

2. Strong shock

If you are driving under better road conditions and you feel that the car shakes a lot, eliminate the problem of the car itself. The larger cause should be related to the tires. For example, wide tires have a large friction area on the road surface, which increases the possibility of fragmentary vibration and is not discomfort.

3. Unsatisfactory control

If you feel that the car is handled as "flesh" and "uncontrolled" during driving, it should be related to the width of the tread from the perspective of the tire. According to the above flat ratio, if the tread is narrower , The grip will be slightly weaker, and then the ability to perceive the road surface is poor, and it will feel uncomfortable to manipulate in corners, potholes and other road conditions.

4. Wetland water slide

In the case of wet roads on rainy days, the phenomenon of water skiing is more special. "Water skiing" refers to the formation of a water film between the tread and the road surface. A large part of the reason is related to driving habits, especially if the driving speed is too fast, it is easy to get water. slip. At this time, don't step on the brake pedal or hit the steering wheel violently, just hold the steering wheel steady with both hands. In addition, the reason for the water slip may also be that the tire pattern is damaged and the drainage is reduced. If this happens or you often drive in wet ground, it is best to choose a tire that has excellent wet braking performance under the damaged state.


2021/07/01 15:05

The tire is one of the most important components on the car. Its function is to support the car body, buffer external impacts, complete the contact with the road surface and ensure the driving performance of the vehicle. Tires are often driven under complicated and harsh conditions. They bear various deformations, loads, forces, and high and low temperature effects during driving. Therefore, they must have high load-bearing performance, traction performance, and cushioning performance. It also needs to have high wear resistance and flex resistance, as well as low rolling resistance and heat build-up. It is related to travel safety. The tires are so critical, how do you complete the maintenance of the tires?

1. Regularly check the tire pressure

Tire pressure is a key factor affecting the life of automobile tires. It cannot be too high or too low. Inflation must be completed according to the tire pressure marked on the vehicle. Normally, the car manual contains a specific calibration value. In specific driving, everyone needs to adjust the tire pressure reasonably according to the natural environment.

2. Remove impurities from tires on time

When the tire is in contact with the road surface, it is easy to adhere foreign matter such as gravel on the tire, and remove it on time to prevent such residues from continuing to wear the tire when the vehicle is driving, which will cause the tire to burst, which is very dangerous.

3. Check the wear

Check the condition of the tires and spare tires, and check whether there is abnormal wear. Seriously worn tires have weak grip and are prone to slipping. The tire has a boss at a depth of 1.6 mm inside the pattern, which is a tire wear mark. When the tire wear exceeds the convex surface of this wear mark, it indicates that the tire needs to be replaced.


2021/06/30 17:04

When it comes to car maintenance, most people's first impression is to change the oil, clean the car and other inspections, so today we will take a look at the true colors of tire glaze, so that you have a deeper understanding of car maintenance.

With the progress of the times, people have higher and higher requirements for the quality of life, and more and more attention is paid to the maintenance of tires, resulting in tire glaze that can improve the face value of the tire.

It seems that about the truth about tire glaze, most car owners know that it can clean tires, improve brightness and beauty. However, whether the impact on the tire is good or bad after use, I cannot make an accurate judgment. What does the mystery tire glaze look like? After constant review and verification, my understanding of tire glaze has gradually become clear.

In short, tire glaze is actually a third-party chemical product. At present, there are so many types of tire glaze circulating in the market, and it is difficult to distinguish good from bad. As an ordinary consumer, when we don't know whether its chemical composition will damage our tires, I think we should use it carefully.

Of course, if you use it for aesthetics, use PH test paper to measure the pH before using the tire glaze. The tire glaze with strong pH will definitely cause damage to the tire, so needless to say. However, if the test result is neutral, at least it shows that the tire glaze in the hand will not seriously damage the tire rubber.

1. Do not exceed the reasonable speed of driving conditions and legal restrictions (for example, if there are obstacles such as rocks or caves in front, please pass slowly or avoid them).

2. Check the air pressure of all tires, including spare tires, at least every month when they are cold.

3. In order to achieve the effect of uniform wear and extend the life of the tire, the position of the tire needs to be adjusted.

4. Prevent sunlight, oil, acid, etc. from corroding tires.

5. To develop good driving habits, such as: avoid slamming the steering wheel.



2021/06/29 18:09

One is long service life.

The tread has high strength and small circumferential deformation. Harder rubber can be used as the tread material, so it has good wear resistance. At the same time, the tire has a large ground contact area, a small unit ground pressure, uniform load distribution, and low ground slip. The tire travel distance is 50% longer than that of a bias tire.

The second is the low rolling resistance.

Save fuel. The number of layers of meridian cords is small, the friction between layers is small, and the rolling resistance is 25%-30% lower than that of diagonal tires. It can not only improve the power of the car, but also improve the economic benefits of fuel. In actual use, the fuel-saving rate can reach 6%-8%. As the speed increases, the fuel-saving effect is better.

The third is strong carrying capacity.

Radial tire cords are arranged radially, which can make full use of the cord strength and increase the load-carrying capacity of bias tires by up to 14%.

The fourth is good adhesion characteristics.

Due to the good elasticity of the tires, the large ground contact area, the less slippage of the tire surface and the good adhesion, it helps to improve the driving force of the car.

Fifth, good damping characteristics.

The radial carcass bias tires are soft, have good elasticity, and have good cushioning characteristics, which can improve the smoothness of the car, ride comfort, and increase the life of car parts.

Sixth, low tire temperature and fast heat dissipation.

The number of plies of radial tires is small, and there is no shear between the plies, so it has less friction than bias tires, faster heat dissipation, and low temperature rise, which helps to increase speed.


2021/06/29 17:33

Today we will teach you a few tips on self-checking tires.

Piercing: Have your car tires been pierced? If so, how long ago was it? In fact, for a car that has been repaired for a long time, even if there is no problem with it at present, its ability to withstand extreme loads will not be as good as before. In addition, if there are already more than 3 holes on the same tire, it is recommended that you replace the tire as soon as possible.

Bulge: When a vehicle passes through pits, obstacles and road edges at high speed, the tires will locally deform severely under the huge impact force, and the internal pressure will increase instantaneously. The direct result of this is the bulge of the tires. Tires that are already bulging must be replaced immediately, otherwise there will be a risk of puncture.

Pattern: Normally, the tires of a family car in normal use can be replaced every 60,000 kilometers or two years, but tires with severe pattern wear should be replaced in advance. Today's inspection shops have pattern wear scales, and car owners can buy one to check the pattern wear of their tires in time. In addition, increased tread cracks are also a sign of serious tire aging. Normally, car owners can spray some tire protection wax reasonably, and in addition, try not to press corrosive liquids when driving.

Air pressure: For front-wheel drive vehicles, the engine, gearbox and other important driving components are pressed at the front end, so the front tires sometimes look flat. If the visual inspection is not accurate, you must use a special tire pressure gauge to check whether the air pressure is normal.

Stones: Some car owners often hear their cars make noises when driving, but there is no system failure when driving. At this time, you need to check whether there are gravels stuck in the tire pattern. In fact, you only need to take the time to dig out the stone particles in the tread texture with a key.

Spare tire: If you want the spare tire to play a real emergency effect, you should usually pay attention to its maintenance. First of all, check the pressure of the spare tire from time to time; in addition, pay special attention to the oil erosion of the spare tire. The tire is a rubber product and should not be corroded by various oils. The tires will bulge soon after being tainted with oil, which will greatly reduce the service life of the tires. Finally, the life of the spare tire is around 4 years ago. Many car owners mistakenly believe that the spare tire is always new if it is not used. After 4 years, the spare tire must be replaced even if it has not been used once, or the spare tire will become a waste tire.


2021/06/25 09:27

What are the functions of green tires:

First of all: it can ensure to reduce fuel consumption and reduce exhaust gas emissions.

Second: It can prevent vibration and reduce noise pollution to the environment.

Finally: It can replace the tires that need to be studded or chained for winter driving in some areas to prevent the tires from destroying the road and prevent dust.

How do tires ensure energy saving and environmental protection:

The vehicle will have resistance during driving, and the tire roll assist can account for 18% to 30% of the total assist. Therefore, reducing the tire roll assist can reduce fuel consumption by 3% to 3%. About 8%, and then achieve the purpose of reducing exhaust emissions and saving fuel.

Ways to reduce tire roll resistance:

First of all: reducing the weight of the tire, using a smaller component thickness for the inner material of the tire to achieve the same quality is the fastest and most effective way to reduce the tire roll resistance.

Secondly: to reduce the energy loss (hysteresis loss) of the tire material, the tire achieves a smaller hysteresis loss through the use of improved polyester cord varieties.

The above two methods both require manufacturers to control the production process and adopt better machines.


2021/06/24 08:53

Just like a human foot, a tire has a vital function. It not only has to bear a ton of load, but it also has to deal with complex road conditions. It is one of the main guarantees of safety, so it needs to be carefully taken care of, not only to check it frequently, but also to know how to replace it by itself in an emergency.

Special attention: the side of the tire is the most vulnerable

As far as tires are concerned, a puncture is the most serious safety risk. How to cause a puncture depends on the structure of the tire. It can be seen from the tire polishing diagram that the front of the tire is cross-bonded layer by layer of steel wire and rubber, which is relatively firm; the structure of the side of the tire is different from that of the front. Adhesion is just a thin line of adhesion, only a thicker steel wire is inside, which plays the function of supporting the tire.

Because of the special structure of the tire, if the side of the tire is damaged, it is not easy to repair, and in most cases, it can only be replaced with a new tire. If it will be repaired, it is very easy to cause a puncture when pressure is applied. Because the connection between the front and side of the tire is very thin, in most cases, the puncture is in this position. When the wheels are running at a high speed, the temperature will be too high, and the tire pressure will affect the temperature changes. The tire pressure is insufficient and the speed is fast, causing the temperature to be too high, and it is very easy to blow the tire.

Tell everyone a few ways to use tires:

1. Inspect the tires. If the puncture is on the side of the tire and the degree is serious and cannot be repaired, you need to change a new tire.

2. You cannot change the size of the tires at will, so you should choose a tire that matches your own car.


2021/06/23 10:19

What exactly are run-flat tires?

The run-flat tire is called "flat-flat tire", and the name "run-flat tire" is nothing more than the name of the manufacturer to promote this type of tire. If you want to say that the name is to deceive riders, then you need to know how many people do it for It's not an exaggeration to use its name willingly to take out the money from the tires to replace the run-flat tires. In fact, explosion-proof tires can help you continue to drive a certain speed for a certain distance in the case of flat tires or insufficient tire pressure, without the occurrence of "non-puncture."

What are the benefits of "run-flat tires"?

1. Good protection. In high-speed driving, a puncture is a situation that the driver is afraid to encounter. Therefore, you must be cautious in the choice of tires, but don’t say that if you have a "run-flat tire", it will not puncture. In fact, it will only make you It is not so dangerous when a tire bursts, because the instant transfer after a tire burst is likely to cause the vehicle to lose control, and because the wall of the flat tire is more supportive and tough than ordinary tires, the wheel hub can be used when the tire bursts. Combine with tires to support the vehicle and avoid too dangerous. Moreover, in general tires that encounter sudden punctures or air leaks, they can only rely on the contact of the wheel hub with the ground, without the support of the tire, because the general tire will leave the wheel hub without tire pressure.

2. Ability to "support" for a long time. Ordinary tires will release gas. Don't think about how long it will take for your tires to find a suitable position. Explosion-proof tires do not immediately deflate, because their tire structure is very different, so it can help you maintain a certain distance in the case of a flat tire. Even under the conditions of zero tire pressure and 80KM/h, some better run-flat tires can run for 3 hours. I believe that with such a long time and distance, even if the size of China is large, you should be able to find a repair shop.

3. More elastic than ordinary tires. Because run-flat tires use a structure that strengthens the sidewall, their durability is destined to be better than ordinary tires. Generally, the sidewall of an ordinary tire is composed of several layers of cord fabric. The sidewall is relatively thin. When driving, we can’t just drive on the road. Sometimes we will encounter potholes or steps. Even on the road, there will be stones, which are really small. Generally, it will not cause much damage to the tire, but once the sidewall of an ordinary tire collides, it is easy to bulge or rupture, all of which depend on the sidewall. Moreover, the sidewall of the tire is reinforced, so the usability of the tire is also strengthened virtually, making it more elastic than ordinary tires.


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