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Method for repairing mechanical damage of radial tire

A radial tire and tire technology, applied in tires, other household appliances, household appliances, etc., can solve problems such as long time, easy patch fall off, and repair steps for wound damage, achieving high repair efficiency, ensuring reinforcement and sealing effect, Repair effect improved effect

Inactive Publication Date: 2013-12-25
SHIJIAZHUANG DENAIFU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a repair method for radial tire flaws, which solves the problems in the prior art that the patch is easy to fall off and the wound is damaged again, and the repair steps are too many and the time is long

Method used

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  • Method for repairing mechanical damage of radial tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A hard injury wound with a length of 10cm on the outside of the radial tire, when the present invention is used to repair:

[0041] 1) Wound plastic treatment, using a rubber digging knife to cut in a rectangle to form a rectangular opening with a length of 10cm and a width of 10mm;

[0042] 2) Grinding the wound, grinding the inner side and the outer side of the wound respectively. The inner side of the wound is based on the selected patch, and its circumference is 5mm wider than the patch. Grind until the inner side of the tire wall completely exposes the new rubber, and at the same time, the tire cannot be exposed The outer side of the wound is ground around the rectangular opening, the upper and lower parts of the rectangular opening have a grinding width of 15 mm, and the left and right parts have a grinding width of 10 mm. The grinding depth of the outer side is greater than that of the inner side and is ground to the sidewall line of the tire. There is 1mm rubber...

Embodiment 2

[0049] There are two near-distance hard wounds on the outside of the radial tire, wherein the two wounds exist in parallel, the distance is 5mm, and the left and right lengths are 8cm. When the present invention is used for repairing:

[0050] 1) Wound plastic treatment, use a rubber digging knife to dig through the two wounds, and dig out a rectangular opening with a length of 8cm and a width of 15mm;

[0051] 2) Wound grinding treatment, the inner side of the wound and the outer side of the wound are polished separately. The inner side of the wound is based on the selected patch, and its surrounding area is 6mm wider than the patch. It is polished until the inner side of the tire wall completely exposes the new rubber, and at the same time, it cannot be exposed. The inner line layer of the tire; when grinding the outside of the wound, the grinding width of the upper and lower parts of the rectangular opening is 12mm, and the grinding width of the left and right parts is 12mm....

Embodiment 3

[0060] There is an internal wound on the side of the radial tire that is not leaking but bulging. The maximum broken wire length at the bulge is 10mm. When the invention is used for repairing:

[0061] 1) Wound plastic treatment, use a rubber digging knife to dig out a square opening with a length and width of 10mm from the wound inside the bulge, and its length is equal to the maximum side length of the bulge;

[0062] 2) Grinding the wound, using a low-speed pneumatic grinder with a semi-circular grinding wheel to grind the inner wound of the tire. The grinding range is based on the selected patch, and its circumference is 4mm wider than the patch. Grind to The inner side of the tire wall completely exposes the new rubber, and at the same time, the inner layer of the tire cannot be exposed; the outer side of the wound is ground with a low-speed pneumatic grinder equipped with an oblate grinding wheel. 15mm, the grinding depth on the outer side is greater than that on the inn...

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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 ...

Claims

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Application Information

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IPC IPC(8): B29C73/00B29L30/00
Inventor 吕亚峰
Owner SHIJIAZHUANG DENAIFU TECH
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