Preparation method of aircraft tire

Abstract

The invention discloses a preparation method of an aircraft tire. The aircraft tire comprises an airtight layer, a tire body layer, a tire crown layer and a tire tread which are sequentially arrangedfrom inside to outside, wherein the tire tread comprises a tire tread layer and tire side layers, the tire tread layer is provided with linear textures, and the tire side layers are arranged on the two sides of the tread layer; tire teeth are arranged between tire toes and tire heels of the tire body layer; the tire body layer comprises a tire body cord fabric layer and a buffer layer which are sequentially arranged from inside to outside, wherein the buffer layer is arranged between the tire body layer and the tire tread layer; and the tire body cord fabric layer is composed of a plurality ofcord fabric rubber layers and anti-wrapped cord fabric nylon net layers which are arranged alternately. According to the technical scheme, the method comprises the following steps of S1, preparing the tire crown layer; S2, preparing the tire teeth; S3, preparing a tire bag; S4, preparing tire side layers; S5, preparing the tire tread layer; S6, preparing the tire body; S7, preparing a green tiresemi-finished product; S8, preparing a green tire; and S9, forming. The preparation method has the advantages of being wide in raw material source, simple in preparation process, low in production cost, energy-saving and environment-friendly, easy to popularize and the like.

Description

technical field [0001] The invention relates to the field of tire manufacturing, in particular to a method for preparing aircraft tires, which is mainly applicable to the preparation of radial aircraft tires. Background technique [0002] Although aircraft tires are made of rubber material similar to truck tires, due to the special conditions of use, aircraft tires adopt a special structure. First, the tires are inflated with nitrogen. Nitrogen molecules are larger than oxygen molecules, so it is not easy to expand with heat and contract with cold, and the deformation range is small, so as to maintain a stable tire pressure and ensure the stability of the use process; Atmospheric friction produces a large amount of charge attached to the fuselage. The discharge brushes on the aircraft cannot guarantee the complete discharge of static electricity. For this reason, the aircraft tires must have a certain degree of conductivity. Third, based on safety considerations, aircraft ti...

AI Technical Summary

Problems solved by technology

[0003] However, the existing aircraft tires often have the following defects: in order to prolong the service life of the crown part, usually by optimizing the crown rubber formula and adding additional structural materials, but due to the improvement of the rubber preparation formula will increase the tire density, adding Additional structural materials will increase the radius of the tire, resulting in excessive overall tire mass, which is not conducive to saving production and use costs; in actual production, the additional structural materials added to the crown will also reduce the weight of the covering layer and the tire. The degree of adhesion between the tread layers, thereby reducing the local tension between the materials of the crown part, aggravates the wear of the tire; too many ply layers make the tire as a whole hard and difficult to deform, so it has weak flexibility sex