Tire is a round elastic rubber product that is assembled on various vehicles or machinery and rolls on the ground. Usually installed on the metal rim, it can support the car body, buffer the external impact, achieve contact with the road surface and ensure the driving performance of the vehicle.
Tires are often used in complex and harsh conditions. They are subjected to various deformations, loads, forces and high and low temperatures during driving, so they must have high bearing performance, traction performance and cushioning performance. At the same time, it also requires high wear resistance and bending flexibility, as well as low rolling resistance and heat generation. ?
Motorcycle tire (GB 5 18-2007) was put forward by China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Technical Committee for Standardization of Tire and Rim (SAC∕TC 19). This standard entrusts the National Technical Committee for Standardization of Motorcycle and Bicycle Tires and Rim to be responsible for the interpretation. This standard was drafted by Guangzhou No.1 Rubber Factory, Xiamen Zheng Xin Rubber Industry Co., Ltd. and Guangzhou Rubber Industrial Products Research Institute.
Main drafters of this standard: Chen Qiufa, Li Yihua, Xiao Chuhua, Huang Huiwen, Lei Ling and Wang Huimin. The previous editions replaced by this standard are: -GB 5 18- 1965, GB 5 18- 1974, GB 518-1991.
The birth and development of the automobile is a great achievement of the world's scientific and technological progress and an important footprint of human progress, which has enabled mankind to enter the automobile industry era from the carriage era. In the early days of the automobile, in order to meet the comfort, handling stability and power of the automobile, scientists constantly carried out research and innovation, and constantly promoted the progress and innovation of the tire industry.
As the only part of the car that touches the ground, the performance of tires directly affects the safety of drivers and passengers. The importance of tire performance can be imagined, so all countries have made clear requirements for tire safety performance. With the rapid development of automobile industry, consumers not only pay attention to the safety performance of tires, but also pay attention to the comfort, handling stability, NVH and other performance of the whole vehicle.