Archive for March, 2011
Car tires is one of the safety and comfort. You could say that the tires are the vanguard of the vehicles in the surf.
Facing extreme side road. Tire manufacturers are increasingly competing for the tires they produce good quality and high technology in order to mate with wild as a condition of the road. In addition to developing the design of the rim to support the load in a balanced way so that when the vehicle accelerated rapidly in the slippery roads, vehicles will not slip and comfortable.
As regards the construction of the tire, after the canal, the radial tire is normal and should be distinguished. normal tires (standard) of the layers that form the wire 30-40 degrees from the centerline of the tire together. Its role in the tires to keep the load in the range and breadth. Upon receiving a vertical load, the displacement of the contour of yarn. Therefore, the ability to rotate and wear resistance is still lower than the radial tire.
Radial tire manufacturing process using a variety of raw materials, dyes, chemicals, 30 types of rubber, steel wool, and so on. The process begins with the mixture of natural rubber, oil, carbon materials, dyes, antioxidants, accelerators and other chemicals, known as the substances to make the connections. Mixtures of these materials are huge blender called Banbury machines in the temperature of the mixture and the pressure is very high. Mix the soft black material and the heat turns into a giant blender repeated.
Rubber material composition of the material, for example, 195/70R14 tires with a code of Daria weighs about 8 kg, a mark: 2 kg is 30 types of synthetic rubber, 1.5 kg of 8 types of rubber natural, 2 kg 8 types of black carbon materials, steel belt of 0.5 kg, 0.5 kg of polyester and nylon, steel wire bead 0.5 kg and 1.5 kg of 40 types of substances chemicals, petroleum and others.
General mixture of synthetic rubber and natural rubber depending on the type of tires soon, one: the passenger car tires (in percentage) 55-45, 50-50 small truck tires, tires for race cars from 65 to 35 , off-road tires (Giant / EM) 20 -80.
Standard Code specifies the tire on the International Standards Organization is based, as the code numbers show 195/70R14 86 H 195 tire width in millimeters or inches with normal tires with radial tires. Then H is the maximum speed limit on the use of these tires. Code 14 is the rim diameter in inches, 70, a high aspect ratio tire width in percent, R is the tire and 86 show the load index or load. The speed limit indicated by different letters. K-code top speed 110 km / hour. The 120 km / h H 130 mph, 140 km to the N, P, Q 150 and 160 kilometers per hour km / hour. The R-code with 170 kmh S 180 km / h, T 190 kilometers per hour, U 200 mph H 210 mph V and over 210 km / hour.