Tire is a round elastic rubber product that is assembled on various vehicles or machinery and rolls on the ground. 1845, R·w· Thomson, a Scottish-born civil engineer, invented pneumatic tires, and obtained a patent from the British government entitled "Wheel Improvement for Carriages and Other Vehicles". The first pneumatic tire was born in February 10 of the same year. Tires are usually installed on metal rims, which can support the car body, buffer external shocks, 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. Half of the world's rubber consumption is used for tire production, which shows that the ability of tire to consume rubber is no small matter.