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tires is a variety of vehicles or machinery on the assembly ground rolling annular elastic rubber is usually installed in the metal wheel rim, can be supporting body, the buffer external shocks, to achieve contact with the road and to ensure that the vehicle performance. Recently, the Michelin tires classroom knowledge to carry out a tire, so that we correctly understand the tires.
Q: What is the correct understanding of the benefits of tire?
correct understanding of tire future, they can identify the tire in a different environment conditions, and timely replacement and adjustment, to ensure the normal security and convenience when traveling.
types of tires used tires in their daily
, the tire is divided into two types, the first for the bias ply tire, also known as ordinary tires. Refers to the carcass ply cord and the buffer layer adjacent layers cross, and with the tread center line was arranged in less than 90 ℃ angle pneumatic tires. The tire longitudinal stiffness, suitable for medium speed in normal road driving.
second radial tire used tires, Radial tires commonly known as Characteristics of radial tire cord is not arranged in overlapping, but nearly parallel with the tire section, to the Earth's meridian, as arranged, cord angle is small, typically 0 °, matrix connection is not maintained between the intersection, when the tire In the moving process, the stress increases around the crown will cause circumferential done, the matrix into radial cracks. Therefore, the buffer layer using radial tire nearly circumferential cord layers arranged deal with the carcass cord angle 90 ° to the intersection, generally 70 ° to 78 °, forming a rigid ring can hardly be done with. The whole tire fixed, limiting the circumferential deformation of the tire, the tire buffer layer under the 60% to 70% of the internal stress. Become a main force of radial tire parts. So called radial tire belt. Bias tire force components are not the main buffer layer, and 80% to 90% of the internal stress borne by the carcass ply. Thus, radial tire belt design is very important and must have good rigidity, can be used multiple wide-angle, high tensile strength fibers and hard materials such as steel wire or glass fiber. What tire components by
1, tire: tire by the tread, sidewall, buffer layer, ply and bead composition. Cars on the road to withstand the various forces driving.
2, sidewall: the Ministry of tire sidewall is the outer ply layer, for the protection matrix.
3, ply: carcass ply is linked by the parallel composition of rubber tire cord fabric layer, the force the tire carcass, to ensure that the tire has the necessary strength and dimensional stability. Table for the buffer layer and the bias ply tire carcass layer or between the curtains of plastic tube, used for buffering the impact of external, protective matrix, enhance the table in between the bond ply.
4, bead: bead tires mounted on rims part of the bead core and bead bag cloth composition, the role of the tire fixed. Tire outside diameter of the tire size D, diameter or rim bead diameter d, and B flat, wide cross-section than the other dimensions to that in inches.
5, car tires: car tires usually rubber and fiber material and metal materials, composite products, manufacturing processes, mechanical processing and chemical reactions in the synthesis process. After the rubber mixing and compound made by the pressure of the tread; cord by rolling, cutting, fitting tube made of cord or cord volumes; wire by the partnership, including the plastic after forming the bead; and then all the semi-finished products in the molding machine combined into a tire blank, in the curing of the metal model made by curing the finished tire. The above data
tire What does it mean
tires: tire specifications and physical properties of the geometric parameters of the symbol data. A set of numbers used tires, said the former number indicates the tire section width, the latter figure, said rim diameter, are in inches. The middle of letters or symbols have special meanings:
levels: level refers to the tire cord rubber layer nominal layers, with the actual ply layers are not totally consistent, is an important indicator of the strength of the tire. Levels in Chinese signs, such as the 12 level; English signs, such as
cord material: Some tires separately labeled, such as ,7.50-20G, etc., N, said nylon, G said the wire, M that thread, R said rayon.
load and pressure: the maximum load and the corresponding general label pressure, load the
Rim Size: said tire rim used in specifications to match. Facilitate the practical use, such as the
balance Logo: rubber color marker shape, printed on the tire sidewall, the tire where the lightest, should be working on the valve assembly to ensure that the balance of the tire.
rolling direction: the tire's tread on the slippery road drainage in the particularly critical,
gucci sale, so the pattern of asymmetric tires used off-road vehicles rolling direction of the arrow marks the assembly to ensure that the design of adhesion, non-slip properties. If installed wrong, the opposite.
wear limit marks: one side with rubber tires, pieces of tire wear limit mark, once the tire wear reach the flag should be replaced, otherwise they will be strong enough halfway puncture.
production batch number: with a set of numbers and letters mark the manufacture of the tire and the number of years. Such as Production batch number used to identify the Condition of tires and storage time.
trademark: the trademark is a sign of tire manufacturers, including the trademark text and images tend to be more prominent and eye-catching, easy to identify. Make connected with the production enterprises are mostly marked.
other marks contained
tire marks top of the other many things, such as product level, the production license and subsidiary said. Take a standard Michelin tires to be a marked example. 65: aspect ratio. Tire height is obtained by dividing the width of the tire out. R: radial structure of tires. 15: inside diameter of the tire 15 (inches), that is, the inside diameter of the rim. 91: Single-child maximum load-bearing index. V: Tire speed rating.
the role of the tire tread pattern
tire tread and the main role is to increase the friction between the road to prevent wheel slip, which is exactly the same role with the sole pattern. Ground tire tread pattern improves the flexibility of the tread and the road between the tangential force (such as the driving force, braking force and lateral force) under the action of tread pattern can have a greater tangential elastic deformation. Increase in tangential force and tangential deformation increases, the contact surface This largely eliminates the free pattern (light tread) tires easily slip the shortcomings, making the friction between tire and road performance of a motor vehicle performance - power, braking, steering and driving safety normal functioning of a reliable protection. Studies have shown that generated friction between tread and road factors also include the role of the adhesion between both sides of the molecular force of gravity and small-scale surface asperities rain micro-cutting of the role of fetal new look, however, play a major role is still elastic deformation of the block pattern. What kinds of patterns are divided
longitudinal groove tread pattern = excellent stability control / rotation offset against small noise / drainage good / easy lateral sliding.
transverse groove tread pattern = driving force, braking force, excellent traction / wear resistance.
both vertical and horizontal tread = longitudinal groove and transverse groove tread advantages.
block tread pattern = driving force and braking force are very good.
cross pattern = pattern is designed to meet the off-dry, wet, rugged mountain and muddy, sandy road and design patterns.
tire tread is important, it can ensure an effective grip. For the pattern, the normal wear and tear to a certain extent, the tire needs to be replaced. The pattern is to determine whether the depth of the basis should be replaced. Different brands of tires will have wear marks, it is hidden in the tire's surface is the location of the tire should be replaced is indicative of the Peugeot.
Once found a tire has worn to the Peugeot, and it means the tire needs replacing. Meanwhile, the ground plane through the observation of the tire, but also to determine the existence of the vehicle wheel alignment and suspension of the hidden dangers. This requires careful observation comparison. Generally speaking, if a child found the problem, it requires careful observation of another coaxial symmetric tires, and even urged to view the other two different child axis. The following figure shows a variety of situations this caused the tire wear marks. If you find this mark can be judged according to the different signs of where the vehicle is a problem in the end.
today for everyone to detail all the tire marks and tire structure, hoping to help you in everyday driving to avoid unnecessary trouble and problems. Before you buy tires and tire size and model selected, the can as a reference.
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