2013年3月8日星期五

Talk about Lexia 3 v47 tire tips

(A) History: Tire is one of the important parts Lexia 3 v47  of the car, it is directly in contact with the road surface and vehicle suspension to ease the impact of car driving, and to ensure that the car has a good ride comfort and driving ride; guarantee good adhesion to improve the car's traction, braking and through the wheels and the road; under the weight of the car, and the important role played by the tire in the car more and more attention has been paid. Long before the tire is made of wood, iron and other materials, the first hollow wheel is 1845 Englishman Robert Thomson, invention, he raised the elastomeric balloon filled with compressed air, in order to ease the movement of the vibration and shock. Although the time of the tire is made with leather and gumming canvas, such a tire, however, has shown the advantages of a small rolling resistance. According to this principle, in 1888, John Dunlop made of rubber hollow tire, followed by Thomas and manufactured with rubber hollow tire valve switch, a pity, because the inner layer is not canvas, and can not maintain a certain cross-sectional shape and cross-section width .
1895 with the advent of the automobile, the pneumatic tire obtained extensive development, the first automobile tire samples appeared in 1895 in France, which is a single tube type tires made by plain canvas, although without the pattern of the tread rubber. Until 1908-1912, the tires have a significant change has been improved in the tread rubber on the tread of the use of performance, thus opening up the history of the tire tread, and an increase of the sectional width of the tire, allowing the use of lower the internal pressure, to guarantee access to the good cushioning properties. 1892, Burleigh Mill, British 
lexia 3 diagnostic tool   invented ply in 1910 for the production of this achievement in addition to the improved quality of the tire to expand tire varieties, but also so that the tire has molded the possibility. With the improvement of the quality requirements of the tire, the carcass quality is also improved, cotton ply is replaced by the rayon, rayon in the late 1950s has been better strength properties, higher heat resistance of nylon, polyester cords are replaced, and steel cord with the development of radial tires, with a strong competitive edge.
1904 Matt created a carbon black reinforced rubber tread rubber tire cord, because before this canvas than the tread of the tire use damaged even faster, carbon black in large scale for reinforcement gum base in an amount increased rapidly, the carbon black, per 100 parts of raw rubber used in the 1930s, but also about 20 parts, when the primarily on the tread using carbon black, a carcass without now has reached more than 50 parts. Previously mixed with carbon black tread, the tire is only about traveling 6000km polished, mixed with carbon black, tire mileage soon be significantly improved. A group of truck tires is approximately 100,000 km traveled, good on the road, or even up to 200,000 km. 1913-1926, due to the invention of the cord and carbon black tire technology, the development of the tire industry has laid a foundation. Gradual standardization of the outer edge of the tire manufacturing process to improve production speed than before, increasing production of tires. With the development of the automobile industry, tire technology has been constantly improved and improved, such as the early 1920s to the mid-1930s, passenger car tire transition from a low-pressure tires to ultra-low pressure tires; began to tire in the 1940s and gradually transition to the wide rim; tubeless late 1940s the emergence of the tire; late 1950s, the advent of low-profile tires. The emergence of many new technologies than the 1948 France Mixi Lin pioneered radial construction tires, this tire is significantly improved due to the life and the use of performance, especially in the driving can save fuel, known as the tire industry revolution Here a brief description of today's development of several tire characteristics.

 
Radial tire: the characteristics of such a tire is a meridional cross-sectional direction of the tire ply cords arranged (i.e., crown angle is zero), due to the cords arranged such, so that the Emperor line intensity can be 
Renault CAN Clip  fully utilized, radial tires ply layers generally can be reduced by 40-50% than ordinary slash tires about. In the circumferential direction, the cords rely rubber to contact. Radial tires compared with ordinary slash tire has good elasticity, abrasion resistance, and can increase the service life of 30-50%, rolling resistance, reduce vehicle fuel consumption of about 8%, good adhesion, good cushioning performance tires, carrying capacity, which is difficult to puncture, etc.. The disadvantages are: easy to rip the sidewall, the large deformation of the side, leading to poor car lateral stability requirements and the high cost of manufacturing technology. Tubeless tire: a tubeless tire and the tire differs in that there is no inner tube, the air directly into the tire, and therefore good seal between the tire and the rim. A tubeless tire in appearance and structure, with a tubeless tire approximation, the difference is that no additional thick layer of 2-3mm is designed to seal gas of the rubber sealing layer on the inner wall of the tubeless tire, it is vulcanized adhesion up when the perforation of the tire itself in a compressed state Jinguo biopsy material does not leak, it is a long-term, even if the puncture was pulled out, and also be able to temporarily maintain the air pressure in the tire.

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