Radial tire of fiber cord fabric tire shoulders

Abstract

Disclosed is a radial tire of fiber cord fabric tire shoulders. The radial tire comprises a wire cord fabric, a fiber cord fabric and an airtight layer, wherein the wire cord fabric, the fiber cord fabric and the airtight layer are located at the tire shoulders of the inner wall of the tire, and distributed in sequence from outside to inside; and steel wires are arranged in the wire cord fabric, fibers are arranged in the fiber cord fabric, and included angles of 5-45 degrees are formed between the fibers and the steel wires. The radial tire of fiber cord fabric tire shoulders has the advantages of solving the problems of bending deformation, seam production, cord exposure and the like of the carcass wire cord fabric of the on-load radial tire in the production process by virtue of a netlike structure formed due to different angles between the fibers of the fiber cord fabric and the steel wires of the wire cord fabric, thereby avoiding tire flat, shoulder separation, explosion, early damage and other similar situations, improving the running safety of the tire and prolonging the service life of the tire.

Description

technical field [0001] The invention relates to a radial tire, in particular to a radial tire with fiber cord shoulders. Background technique [0002] The carcass of all-steel radial truck tires generally uses a layer of steel cord as the skeleton material to bear the load on the tire. Therefore, it is required that the steel wires should be evenly arranged and not bent or deformed in order to better bear the load, otherwise it is very easy to cause a tire blowout. In addition, the inner lining layer of the tire plays the role of protecting the carcass steel wire and preventing air leakage in the tire. The material used is mainly halogenated butyl rubber, which is a rubber compound with good airtightness. Extrusion migrates to the steel cord layer and affects the adhesion between steel wire and rubber (carcass steel wire rubber is a special formula system with good adhesion to steel wire, which is completely different from the formula system of inner liner rubber). [0003...

AI Technical Summary

Problems solved by technology

The technology of adding rubber to the tire shoulder and thickening the inner liner is very prone to quality problems such as steel wire exposed in the tire, cord bending, and thin wire during the vulcanization process.

The main reason for these problems is the uneven material distribution or insufficient material caused by improper fit of the materials of each component, insufficient thickness or width, etc., and the uneven swelling of the vulcanization bladder produces uneven extrusion, which makes the steel cord bend, deform, and arrange. Inhomogeneous, inner liner rubber migrates inward and exposed lines, etc.

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