Meridian aviation tyre using nylon/aramid fiber composite cord as framework material

Abstract

The invention discloses a steel-belted aerial tire with the skeleton material of nylon-kelvar composite cord, which is mainly characterized in that the carcass ply is composed of multi-layer nylon 66 cords or nylon-kelvar composite cords. The belt structure layer is composed of at least more than two layers of nylon-kelvar composite cords. A tire tread structure layer is arranged above the belt structure layer, in which the nylon-kelvar composite cord is also applied. Both ends of the carcass ply cord layer are wound with a pair of left and right wire loops and counter wrapped upward. The belt structure layer is composed of the invert folded cords, in which the curling ends are all in the middle of the tread of tire. This aerial tire has the advantages that (1) the nylon-kelvar composite cord is taken as the skeleton material of the tire so that the fine characteristics of the nylon-kelvar composite cords are reflected, in which a good basis is laid in order to meet the using requirements of the steel-belted aerial tire. (2) With the belt structure layer of multi-layer nylon-kelvar composite cords, the high internal pressure, high-speed, high-load, large deformation and impact resistant use requirements of the steel-belted tire can be met.

Description

Technical field: [0001] The invention relates to an aviation tire and its skeleton material, in particular to a radial aviation tire using nylon / aramid composite cords as the skeleton material. Background technique: [0002] The use characteristics of radial aviation tires are high internal pressure, high speed, high load, large deformation (sinking rate reaches 28% to 40%), impact resistance, and intermittent use. The mechanical properties of radial aviation tires and their harsh service conditions determine that the cords used must have high strength, fatigue resistance, impact resistance, and deformation resistance. [0003] At present, most of the carcass of high-load and high-speed pneumatic aviation tire technology adopts a diagonal structure that crosses each other, and the main belt also adopts a diagonal belt layer structure. Aviation tires with this structure are used under high-load, high-speed and harsh conditions. At this time, due to the arrangement direction ...

AI Technical Summary

Problems solved by technology

The rigidity of the tread part is low, the speed performance is low, the wear resistance is not good, the heat generation is high, and it is extremely difficult to obtain superior speed performance and durability

In addition, the current tire frame materials are mainly nylon 66 and nylon 6. The disadvantage of nylon is that it is not heat-resistant, has large thermal shrinkage, small modulus, and high elongation.

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