Method for repairing mechanical damage of radial tire

Abstract

The invention provides a method for repairing mechanical damage of a radial tire, relates to the technical field of tire repair, and aims to solve the problems that a patch is easy to flake off, which causes second damage to the broken part, multiple repair steps and long repair time in the conventional repair technology. The method comprises the following steps: 1) shaping treatment is performed on the broken part so as to from a rectangular digging opening; 2) polishing treatment is performed on the broken part so as to enable the new rubber of a tire to be exposed completely, meanwhile, the line layer structure of the tire is not exposed; 3) stitching treatment is performed on the broken part, stitching is started from one corner of the digging opening, and threads are arranged in a cross manner up and down within a polishing range, and vertically arranged in the direction from the inner side of the tire to the outer side of the tire; 4) rubber hot vulcanization treatment is performed, a vulcanizing agent and raw rubber repaired newly are adopted for performing extrusion heat vulcanization treatment in a vulcanizing machine. According to the invention, the reinforcement of the interior of the broken part and rubber hot vulcanization treatment are combined, and reinforcement and vulcanization treatment are completed at one step, so that a patch inside the repaired tire is solid and firm, and is less susceptible to flaking, the repair process is simplified greatly, the repair efficiency is high, and the using effect is excellent.

Description

technical field

[0001] The invention relates to the technical field of tire maintenance, in particular to a method for repairing radial tire flaws. Background technique

[0002] The radial tire is composed of ply, belt, crown, shoulder and bead, and the carcass is tightened by the belt. The cords of the carcass ply of a radial tire are arranged at an angle of 90 degrees to the center line of the tread. Since the arrangement direction of the cords of the carcass is consistent with the radial section of the tire, the strength of the cords is fully utilized. Bias tires can be reduced by about 40-50%, and the carcass is softer and more elastic. Because the carcass cords are only connected by rubber in the circumferential direction, in order to withstand the large tangential force generated during driving, the radial tire has several layers of cords with a large angle to the meridian section, high strength, and a circumferential direction that is not easy to stretch. Ring-like ...

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