What Are Tires Made From?
Posted on January 17, 2010
Filed Under Interesting
The major material for the manufacture of tires is rubber. It can be both natural and synthetic. The synthetic rubber is used more widely as it is cheaper and has properties similar to natural. There are two simple methods by which You can check the quality of the rubber.
First of all You should run Your finger over the tire. If You see a clear mark on Your finger the tire will not serve long as it has too much additives. The next thing You can do is to try to tear off a “whisker”. You will not be able to do so if the tire is of a high quality. Besides the rubber the tires are manufactured from compounds – artificial mixtures of monomers and polymers.
The compound is cheaper than rubber and has a higher quality. The second component is cord. It is a fabric made in form of metal or nylon threads. Rubber-coated threads of cord form carcass. The carcass can be either textile or glass. Both variants are typical for passenger car tires as trucks use tires with metal cord.
Glass fiber provides high resistance to stretching and decay. The tires made with the use of the material have higher treadwear resistance level and, as a result, longer service life. Depending on the layout of the threads the tires can be divided into diagonal and radial. The latter are more rigid and ensure a higher durability.
In such tires the number of carcass layers may be modified what results in the minimization of weight and the decrease of the tire’s heating. It also extends the service life. The breaker is usually situated between the tread and carcass. It protects the latter from the strokes. The breaker is made from the thickened layer of rubber or criss-cross layers of metal cord.
The thick layer of air-proof rubber covers the bead in tubeless tires. It is the element that enables air-proof junction with the bead. So, the frame of each tire is rubber or materials on the base of rubber with other additives. The correlation of materials, density and other features may differ thus determining the quality of a specific tire.
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