Segmented mold vulcanizer tire retreading method

A tire retreading and vulcanizing machine technology, applied in the field of rubber technology, can solve the problems of poor appearance quality, low retreadability rate of old tires, low safety and reliability of retreaded tires, etc., and achieve the effect of low production cost and high comprehensive efficiency

Inactive Publication Date: 2009-12-09
钟爱民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the existing prevulcanized strip tread and annular tread tire retreading method, which can only retread the tire crown and cannot adapt to the retreading requirements of different old tires. Low, low safety and reliability of retreaded tires, poor appearance quality and other disadvantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1, retreading the old tire with damaged belt layer and empty tire shoulder, the method is as follows:

[0049] A. Peel off the tread and the belt layer together, and peel off the rubber at the empty part of the tire shoulder;

[0050] B. Grinding the peeling surface to make it rough, uniform and clean;

[0051] C. Apply the glue evenly on the grinding surface 2 times;

[0052] D. Lay rubber-coated steel cords on the carcass. The angle, width, number of layers, arrangement and specifications of the steel wires can refer to the steel wire arrangement of the original tire belt layer, or according to the actual application requirements of the tire. Determine the arrangement angle, width, number of layers and arrangement of rubberized steel cords;

[0053] E. Fit tread rubber and fill tire shoulder rubber;

[0054] F. Pressing;

[0055] G. Put the treated tire into a vulcanizing machine with patterns for vulcanization, the vulcanization pressure is 2.7MPa, the...

Embodiment 2

[0056] Embodiment 2, the method for carrying out comprehensive retreading to the old tire of part belt ply damage, bead cracking:

[0057] A. Peel off the belt layer of the damaged part;

[0058] B. Grinding the outer surface of the old tire and grinding the cracks of the bead;

[0059] C. Apply the glue evenly on the grinding surface 2 times;

[0060] D. Refer to the arrangement angle, width and number of layers of the belt layer steel wires of the original tire to apply the rubber-coated steel cords, and also determine the arrangement angle, width, number of layers and arrangement of the rubber-coated steel cords according to the actual application requirements of the tire ;

[0061] E. Apply tread rubber and fill the bead crack gap;

[0062] F. Paste 1~2mm film on the sidewall;

[0063] G. Pressing;

[0064] H. Put the treated tire into a split mold vulcanizer for vulcanization, the vulcanization pressure is 2.7MPa, the vulcanization temperature is 145°-155°, and the v...

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PUM

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Abstract

The invention relates to a tire retreading method, belonging to the technical field of rubber process. The invention aims at solving the technical problem of overcoming defects that the current presulfurization strip-shaped tread and annular tread retreading method only can retread the cap of the tire, which can not fit the retreading requirement of different old tires, the retreading rate of old tire is relatively low, the safety and reliability of retreading tire is low, and the appearance quality is poor and the like. The segmented mold vulcanizer tire retreading method of the invention is characterized in that carrying out tread grinding or peeling a belt or peeling rubber at the shoulder part of the tire according to the abrasion, damage degree and parts of the tire, polishing the tire body to lead to coarse surface, painting adhesive cement, applying unvulcanized tread rubber or applying coated steel cord thread according to damage degree, restoring strength of the belt, applying unvulcanized tread rubber, mending broken holes, and loading into the segmented mold vulcanizer provided with tire pattern for vulcanization.

Description

technical field [0001] The invention relates to a tire retreading method, which belongs to the technical field of rubber technology. Background technique [0002] At present, the pre-vulcanized strip tread and annular tread retreading methods used in tire retreading are gradually replacing traditional retreading methods, but these retreading methods can only retread the tire crown. Due to the different degrees of wear and damage of old tires, some old tires only need to update the worn tread rubber, some need to repair, reinforce or replace the belt layer, and some need to repair the sidewall Repair, the above-mentioned retreading methods can only retread the tire crown, either renew the tread rubber, or replace the tread rubber and the belt layer together, and cannot retread the tires with empty shoulders, sidewall damage and bead damage , can not repair the locally damaged belt layer, lack of processing flexibility, it is difficult to adapt to the retreading requirements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/54B29C35/02
Inventor 钟爱民
Owner 钟爱民
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