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Basic Knowledge of Tire

●Structure of bias tire 

Bias tire is intercrossed by multilayer treads. Due to different materials, it can be divided into cotton tire, rayon tire, nylon tire, polyester tire and steel wire.
 

Here are their features:
 1. Cotton tire. Cotton tread is made by cotton textile. Cotton is the earliest material used in tire making. Due to its low intensity, multiple layers, high heating, slow heat transfer, few re-treading time and much water absorption, it has no longer been used. Even so, other materials still take cotton as standard, which has become a practice in tire industry till now.

2. Rayon tire. After cotton, rayon has been widely used, which firstly appeared on Paris Exhibition in 1889. Invented by a famous French physiologist, it has the same luster and feeling like silk but is more highly tensile than cotton. By its features like heat and fatigue resistance, it became main material of tire making. Compared with the cotton tire, rayon tire is better in comprehensive performance, which made tire industry stride forward again. Its disadvantage is hygroscopic so as that its strength will be reduced in wet condition.

3. Nylon tire. Nylon was invented by an American chemist and published by his Dupont Corp. in 1938. Since publication, it has caused widely attention in the world. Some guys called it “Tougher than steel, thinner than spider silk, made by coal, air and water, but elastic and shining like protein fibre”.

As tire tread, nylon is more tensile, impact resistant, elastic, lower density, renewed and difficultly hydrophilic, but its disadvantages are thermal expanded and easily deformed. In winter, if vehicles parked outside for a long time, there will appear “flat spot”, which is caused by this, too.

4. Polyester tire. It has the same strength with nylon, but tensile ability is better than it. So it’s widely used as the backbone of tire among foreigners.

5. Steel tire. It’s invented by France Michelin Tire Corp. in 1946. It features large strength, low rolling resistance, impact and wear resistance, safety and high turned over rate. Its shortcoming is too tough to buffer comfortably.

You’d better to know more tires when selecting one correctly. For example, if you ride on a wet road, you should not choose nylon tire. If you need more turn-over rate, you can use nylon tire. Totally, you’d better choose one suitable tire in accordance with various conditions.

 ●Structure of radial tire

 Tire inner tubes, the construction and general construction of tubeless tires as tubeless tires but the "tube" and the solution for one tire, and tire inner tubes inner tubes are independent, because the tire inner tubes to play the "fetal brain trust" role Therefore, the combination of tire and rim is not very close, once the tube was punctured sharp hard objects, the air will ring from the fetal mouth and the mouth of the binding site of a sudden loss of speed may slow roller off the tire sidewall cord, scrap the whole tire, speed fast, they often cause, such as roll-over, "speak unwarrantedly" and other serious accident.

 ●Construction of tubeless tires

 Tubeless tires (TUBELESS), also known as vacuum tire, some places also called hollow tire. As the name implies, tubeless tires is not inside the tire inner tube. Tubeless tires and some drivers do not understand the structure, therefore, I felt the use of tubeless tires not sure, not practical, in fact, not without a tubeless tire inner tube, it is only the inner tube, more scientific progress in with another material, the other methods and solution for one tire. The inner surface of tubeless tire with a layer of high sealing sealing film (usually used oxidation of butyl rubber), tightly attached to the tire interior. When a piercing nails and other objects, the air leaking from the hole, the fetal membrane immediately contracted with the outflow of air to block the hole. Film and tires together, with no leakage of the gap. In addition, only one inlet, the tire rim to close mouth and bite, it will not leak. Therefore, when the tire after piercing by nails and other objects, a sudden loss of air is not only slowly from the place where the assassination of leakage (because of endometrial contractions blocked the hole, so the slow air loss), can give the driver sufficient time for processing, so that neither the sudden loss of air because of an accident (speed fast, the front wheel suddenly leaks, often resulting in fatal accidents such as vehicle rollover), it will not leak due to a sudden and grinding bad tire.

We can do a test: to blow a balloon full of gas after a stab with a needle, the balloon would explode; but the same balloon affixed an adhesive plaster on the surface, blowing a full stabbed with a needle after the same, with the the loss of air, the plaster will shrink to block the hole, slowly lost air balloon will not explode.

Therefore, from a security perspective, Vacuum tire is the ideal traveling at high speed tires. In addition, low-heat vacuum tires, light weight, save fuel (test proved that there is the tubeless tire tires to save fuel than 1% to 2%), while the repair quickly and conveniently.

Tubeless tire was invented in 1930, has been more than 60 years, had tubeless tire of the invention is considered from a security perspective. But 60 years later, we are also concerned that some drivers tubeless tires unsafe, we can see, our tires to disseminate knowledge is not enough.

Use of tubeless tires, more stringent requirements for the wheels, rims have been no collisions, no rust, must be leak tightness test, not a "trachoma", otherwise, the tire rim of the mouth and bite lax, does not fully gas.


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