(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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